Senior Back End Engineer - AI Workflow/Application Builder
Senior engineer job in Sonoma, CA
🚀 Senior Backend Engineer - AI Application Builder
📍 SoMa, San Francisco, CA | 💼 Full-Time | Onsite
💰 Salary: $200K-$325K + Meaningful Equity (1%+)
Join an early-stage AI SaaS start-up creating an application builder that empowers business users to build custom applications where humans and AI collaborate seamlessly across enterprise systems. The company addresses complex enterprise challenges, including multi-day workflows, cross-system integrations (ERP/CRM/financial platforms), secure VPC hosting, and enterprise-grade observability, logging, identity, and compliance controls.
About the Role
We're looking for a Backend Engineer to lead the development of backend systems and architecture. This is a rare opportunity to take ownership of core systems in an early-stage company, shaping architecture, scalability, and reliability from the ground up.
You'll tackle challenging problems like orchestrating multi-system workflows, processing large-scale data asynchronously, and safely executing AI-generated code - all while collaborating closely with the applied AI team.
What You'll Do
Design and build the core workflow engine - the orchestration layer connecting agents, data sources, and frontend views.
Develop and scale the TypeScript-based backend, handling asynchronous execution, retries, and deterministic routines.
Build and maintain integration layers for REST APIs, SQL sources, and third-party systems.
Collaborate with the applied AI engineering team to integrate automation and intelligence across systems.
Define and enforce best practices for backend architecture, reliability, and developer experience as the company scales.
Who You Are (Must-Haves)
4-15 years of professional software engineering experience.
Strong experience with TypeScript, Node.js, and modern backend architectures.
Experience designing complex data models and managing asynchronous tasks/workflows.
Prior experience working in early-stage startups or high-growth environments.
Experience integrating multiple systems, including REST APIs and SQL sources.
Excited by building scalable systems and comfortable in a startup environment.
Excellent problem-solving, collaboration, and communication skills.
Nice-to-Haves
Experience building or integrating AI / LLM-powered applications.
Familiarity with Temporal or similar orchestration/workflow systems.
Exposure to other modern backend frameworks or cloud technologies (AWS, GCP, Kubernetes).
Why Join?
Competitive salary: $200K-$325K + meaningful equity (1%+) in an early-stage company.
Work alongside experienced founders who have successfully scaled AI and enterprise SaaS products.
Shape the architecture and direction of a high-impact backend system used across complex workflows.
Be part of a small, highly motivated team at the forefront of AI and enterprise applications.
Testing Engineer I
Senior engineer job in Sonoma, CA
We are seeking a detail-oriented and proactive Testing Engineer I to join our Quality Engineering team. In this role, you will collaborate with clients' test engineering teams to design test plans, develop test cases, execute manual tests, and identify/report defects. The ideal candidate should have strong analytical skills, excellent communication abilities, and a passion for delivering high-quality products.
Key Responsibilities
Collaborate with client test engineering teams to:
Develop comprehensive test plans for various components.
Create detailed and accurate test cases.
Execute manual testing across multiple platforms and environments.
Identify, document, and report bugs/defects using standard tools.
Perform a wide range of testing activities, including:
Camera & Photography Testing
Back-end Testing
Black Box Testing
Carrier Testing
Cross-Browser / Cross-Platform Testing
Compatibility Testing
Documentation Testing
Compliance Testing
Exploratory Testing
Accessibility Testing
Functional Testing
API / Services Testing
Integration Testing
Device Testing
Regression Testing
Globalization / Localization / Language Testing
User Acceptance Testing (UAT)
Mobile Application Testing
System Testing
Manual Testing
Analyze customer scenarios to ensure comprehensive test coverage.
Maintain accurate test documentation, logs, and reports.
Collaborate with developers, product managers, and stakeholders during defect triage and issue resolution.
Requirements
0-2 years of experience in Software Testing or Quality Assurance.
Hands-on experience working with Unix/Linux or Windows environments.
Strong understanding of manual testing concepts, test design, and bug reporting.
Working knowledge of test automation tools (Selenium, Appium, or similar) is an added advantage.
Excellent analytical skills with the ability to think through customer usage scenarios.
Strong written and verbal communication skills.
Detail-oriented, organized, and able to work in a fast-paced environment.
Preferred Skills (Nice to Have)
Basic scripting skills (Python, Shell, JavaScript, or similar).
Familiarity with API testing tools such as Postman or Swagger.
Exposure to automation frameworks or CI/CD pipelines.
Senior Research Engineer
Senior engineer job in Sonoma, CA
A fast-growing, deeply technical AI company is looking for a Research Engineer to join a small, high-performing team building the next generation of agentic LLM systems for software development. This is an opportunity to work at the frontier of AI, helping design and evaluate models that can understand, write, and reason about complex codebases.
We are looking for someone who is passionate about AI for code, obsessed with understanding how LLMs behave, and excited to help push the boundaries of autonomous software engineering.
What You'll Work On
Design and run large-scale LLM evaluations, benchmarks, and experiments - particularly for code understanding and generation tasks.
Build tools, datasets, and research frameworks that measure LLM reasoning, reliability, grounding, and hallucination reduction.
Collaborate closely with product and engineering teams to improve model performance across real-world developer workflows.
Work with frontier LLMs (across multiple providers) to analyze behavior, provide structured feedback, and drive improvements in accuracy, reliability, and autonomy.
Prototype new capabilities for long-horizon agentic systems, including retrieval, planning, debugging, and automated coding workflows.
Contribute to model fine-tuning and alignment work, including SFT, LoRA, DPO, or RLHF pipelines.
Build production-quality research tools and evaluation pipelines that scale to real engineering environments.
What We're Looking For
3+ years of experience in AI/ML engineering, research engineering, or similar fields.
Strong coding fundamentals and comfort working in production environments (Python preferred).
Hands-on experience with LLMs (training, fine-tuning, benchmarking, or evaluation).
Experience with transformer architectures, retrieval-augmented generation (RAG), or reasoning-heavy LLM workflows.
Deep interest in code generation, AI developer tools, or program synthesis (professional or personal projects).
Ability to think rigorously about model behavior, failure cases, and reliability.
Comfortable working in a fast-paced, highly collaborative environment with end-to-end ownership.
Bonus Points
Experience with AI systems for code: program synthesis, automated debugging, static analysis, code search, etc.
Prior work with agentic or multi-step reasoning systems.
Contributions to evaluation frameworks, benchmarks, or open-source model tooling.
Background in compilers, programming languages, distributed systems, or developer tooling.
Research experience at top universities, labs, or advanced ML teams.
Why This Role Is Exciting
Work directly with cutting-edge LLMs and agentic tooling.
Influence the direction of an emerging AI product with real-world impact.
Solve some of the hardest problems in AI today: evaluation, grounding, reasoning, and autonomous coding.
Join an elite team with deep experience in LLMs, distributed systems, and developer productivity tools.
Massive opportunity for ownership, impact, and career growth.
If you're passionate about AI for software engineering, love solving deep technical problems, and want to work at the frontier of LLM research, we'd love to hear from you.
Senior Electrical Engineer
Senior engineer job in Sacramento, CA
KGS Group is seeking a Senior Electrical Engineer to join our growing practice in Bellevue, WA or Granite Bay, CA.
About Us
We are KGS Group, an employee-owned, multidisciplinary engineering consulting firm serving clients throughout North America. We're different than traditional engineering firms. We believe a commitment to lasting relationships is just as critical as the expertise applied in our work. To us that means we put our clients and people first. We have the discipline to consistently deliver KGS Quality, never taking the easy way out. We always look closer and dig deeper. And no matter the project, we care enough to do it right.
As an employee-owned company, we're invested in our work and our people. Working with us means you'll be part of some of the most interesting projects up and down the west coast. With the extensive, wide-ranging expertise within our company, you'll have countless opportunities to learn and grow.
Many of our core clients operate in the hydropower and water management fields. We are growing our U.S. team to continue to provide our industry-leading services to these clients. As we expand our presence on the west coast, we are looking for strong candidates at all levels to join our team!
The Role
As a Senior Electrical Engineer, you will be responsible for providing engineering inputs integral to both small and large scale hydro projects. You will lead and mentor teams, support management of production and coordinate delivery of engineering inputs often with multi-disciplinary project team members and senior stakeholders. You will not only support and help grow the broader engineering team capabilities, but your particular focus will be on continuing the development of our powerhouse and energy capabilities and working with key staff in growing that aspect of the business.
You'll also be involved in supporting project management duties, liaising with both internal and external clients as well as assisting with guiding and mentoring graduate engineers within the team. In this role you will lead teams conducting technical work for feasibility studies, engineering designs, preparation of construction drawings and specifications, and carrying out onsite visits for rehabilitation and upgrades to dams, hydroelectric facilities and new hydroelectric developments. You will participate in design and play a large role in mentoring the team. You will be working in a collaborative environment with a great team of engineers and scientists, and you will also interface directly with clients.
Key Responsibilities
Provide input to those managing and executing multiple projects from the proposal stage through to completion. Projects will include a variety of small to large projects.
Establish and facilitate connections with other departments to support and enhance service delivery.
Work collaboratively with other disciplines and multidisciplinary project teams to execute project deliverables, as well as ensure that quality objectives, schedules and budgets are met.
Support and collaborate on new business opportunities with new and existing clients, as well as supporting business development efforts for electrical work.
Manage and mentor junior staff.
Design modifications to, or entirely new, electrical, instrumentation and balance of plant systems related to dams, control structures, water retaining structures, switchyards and hydroelectric generating stations.
Manage and execute multiple projects from the proposal stage through to completion. Projects will include a variety of small to large projects involving water resources, flood control and hydroelectric sectors.
Design modifications to, or entirely new, electrical, instrumentation, protection, and balance of plant systems related to dams, control structures, water retaining structures, switchyards and hydroelectric generating stations.
Perform electrical calculations.
Conduct inspections and support project work on site as required.
Edit and prepare design specifications.
Provide detailed designs and coordination of facilities with team members.
Conduct QA/QC reviews and provide leadership and mentoring related to KGS's QA/QC process.
Contribute to the development of the electrical engineering practice at KGS by documenting technical knowledge, improving internal production processes, coordinating and developing internal training content, and other tasks.
Perform other duties as assigned.
About You
Minimum of a Bachelor of Science (BS) degree in Electrical Engineering from a recognized university. A post graduate degree would be an asset.
Minimum of 15 years of experience in electrical engineering with demonstrated project management skills (tracking budgets and meeting schedules).
Must be registered as a Professional Engineer (P.E.) in California, Oregon, or Washington, as well as eligible for registration as a professional engineer in other states by comity through NCEES.
Demonstrated leadership of electrical design projects in the industrial power generation field, with experience managing and mentoring younger staff.
Previous consulting experience is preferred.
Excellent verbal and written communication skills are required.
Candidate must be able to work independently with minimal supervision.
Client interaction: must be able to effectively assume a lead role as project engineer at project meetings and communicate project and technical information.
Demonstrated experience in site investigations, condition assessments, design and construction support are preferred.
Experience with station service distribution (all voltages), medium voltage equipment, fixed bus power distribution systems, Programmable Logic Controller (PLC) automation (for equipment control), generators and transformers including related monitoring systems, communication systems, system grounding, hoists and gate automation, and balance of plant systems for hydroelectric stations preferred, but industrial experience will be considered.
Experience with the following would be considered an asset:
Backup power systems (including Uninterruptible Power Supply (UPS), Direct Current systems and fuel fired backup)
Lighting (including emergency and exit lighting systems)
Fiber and copper structured cable systems, and associated networking equipment
Distributed Control System (DCS) and PLC Automation, Human Machine Interface (HMI) and Remote Terminal Unit (RTU) integration (including any programming experience)
Protection systems experience, including specifying, setting and verifying (include reference to voltages)
Load flow analysis, system modelling, arc-flash, grounding, and other electrical studies (include reference to software used and any training)
North American Electric Reliability Corporation (NERC)/Critical Infrastructure Protection (CIP) planning
Physical or cyber security planning or design
Unit outage planning
Other renewable energy experience
Travel to project sites is usually limited but is required depending on project/client requirements.
Must possess a valid driver's license and the ability/willingness to undergo security clearance checks.
Have a drive, attitude, and commitment to being an active participant in our employee-owned culture is a must.
The salary range for this position is $130,000 to $180,000 annually.
Please note that the salary ranges mentioned in this job description should serve simply as a guide. The final compensation offered may vary based on a variety of factors, including candidate's experience, skills, and location. KGS Group is committed to providing a fair, equitable, and competitive package that reflects the value an individual brings to the organization.
KGS Group is an employee-owned equal opportunity company offering an excellent compensation and benefits package.
KGS Group welcomes and encourages applications from people with disabilities. Upon request, KGS Group will provide reasonable accommodation for disabilities to support participation of candidates in all aspects of the recruitment process.
Senior IoT Engineer
Senior engineer job in Davis, CA
Senior IoT Engineer (R&D)
$130-150k base salary
Davis, CA
We're partnered with an industry leader in the utility-scale solar digitization and automation space, who are currently going through some exciting growth in their IoT and are looking for an experienced Snr IoT R&D Engineer to join their team in Davis, CA.
The IoT R&D Engineer will be leading on the design, development and prototyping of IIoT products that will provide critical infrastructure for construction automation in the solar sector, and then working closely with cross-functional teams to develop integrated hardware and software systems. The role will work closely with the IoT Director to define project scopes, working with the product managers to turn requirements into technical solutions, and providing technical mentorship to junior technicians and engineers internally.
Key skills & experience:
Demonstrable experience as a professional in the hardware product development space, preferably in a start-up or R&D environment
This is a hands-on role that will be focused ‘tinkering' with a lot of new products/ideas - would be good to have experience with RF, GPS, Vision (Cameras, Optics & Lighting), and systems integration
Should have a good understanding of fabrication technologies, power delivery systems, and electrical troubleshooting techniques
Looking for someone with good CAD experience
Looking for someone with a broad/generalist background who has experience across the entire product development process - open to applicants from a Solar, Construction, or Industrial background
This role will be working onsite in Davis, CA.
Interested? Apply now or send a copy of your resume to ***************************
Cell Design Engineer
Senior engineer job in Sacramento, CA
Cell Design Engineer Required - Northern California
Our client is an innovative battery cell manufacturer developing the next generation of lithium-ion technologies. They're expanding their engineering team and are looking for a Cell Design Engineer to take a lead role in advancing new cell concepts and improving existing designs.
In this position, you'll work at the heart of their R&D efforts, owning key elements of cell design and contributing to decisions that will shape future products.
Key Responsibilities:
Lead the design, development, and optimization of advanced Li-ion cell technologies.
Work closely with teams across materials, chemistry, and manufacturing to progress new ideas into practical solutions.
Plan and execute testing programs, analyse performance data, and address design challenges.
Support and mentor engineers, helping to strengthen technical capability across the group.
Establish and refine best practices for cell design and assembly processes.
Drive continuous improvement initiatives within cell engineering.
Qualifications:
PhD in Materials Science, Chemical Engineering, Electrochemistry, or a related discipline; a Master's degree with strong relevant experience will also be considered.
Practical experience designing and developing custom lithium-ion cells.
Deep knowledge of battery materials, chemistry, and manufacturing methods.
Ability to diagnose complex technical issues and propose workable solutions.
Clear, confident communication skills and ease working with cross-functional teams.
Interested Cell Design Engineers with a proven track record in the design and development of customized lithium-Ion battery cells should apply without delay
Please note
Role requires you to be onsite in Northern California
Due to ITAR compliance, H1-B sponsorship / transfer is not possible
Senior Mulesoft Developer
Senior engineer job in Sacramento, CA
LHH is seeking a Senior MuleSoft Developer to join our client's team in a full-time remote role (some travel required).
As a Senior MuleSoft Developer, you will play a pivotal role in designing, developing, and implementing integration solutions using the MuleSoft Anypoint Platform. Your expertise in APIs, integration architecture, and enterprise systems will be essential in driving operational efficiency across the organization.
Salary & Benefits:
$130k to $150k base salary
Up to 10% bonus
20 Days of PTO to start, 8 paid holidays, 3 flex days
Medical, Dental, Vision
401(k) w/employer match
Key Responsibilities:
Design, develop, and maintain integration solutions using MuleSoft Anypoint Studio and related tools.
Create and manage APIs (REST, SOAP) and integrations across cloud and on-premise systems.
Lead the end-to-end development lifecycle: requirements gathering, design, coding, testing, deployment, and support.
Implement API-led connectivity and reusable integration assets.
Develop, optimize, and maintain integrations between MuleSoft, Salesforce, NetSuite, and Marketo.
Troubleshoot and resolve integration issues, ensuring performance and reliability.
Apply best practices in API security, governance, and scalability.
Mentor junior developers and provide technical leadership on projects.
Collaborate with business analysts, architects, and stakeholders to define integration requirements.
Document technical designs, workflows, and support guides.
Qualifications: (must be able to speak in technical depth to the items below)
Bachelor's degree in Computer Science, Information Technology, or related field.
5+ years of hands-on experience in integration development with MuleSoft, with strong proficiency in MuleSoft Anypoint Studio, API Manager, Runtime Manager, and DataWeave.
5+ years of experience with API-led architecture and integration design patterns.
Proven experience with Marketo, Salesforce, NetSuite, Anaplan, and Portal integrations (must-have all or some of these, with Marketo, Salesforce, Netsuite being post crucial).
Strong knowledge of Java, JSON, XML, and REST/SOAP web services.
MuleSoft Developer and/or Architect certifications (preferred).
Experience with Java, DevOps, Dataweave, Anypoint, Open API, Swagger, Auth Security, and Custom Policy connectors.
Equal Opportunity Employer/Veterans/Disabled
To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to *******************************************
The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:
• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers
• San Francisco Fair Chance Ordinance
Implementation Engineer
Senior engineer job in Sonoma, CA
A fast-growing AI startup is looking for its first Founding Implementation Engineer to own the full post-sale lifecycle for major enterprise customers in a complex, global industry. This is a hands-on, high-impact role where you'll take new deals from contract signature to full operational adoption.
The Role
You'll lead kickoffs, design and execute implementation plans, ingest customer workflows into the platform, and configure automations so the product integrates seamlessly into daily operations. You'll be the central point of contact across customers, product, and engineering-ensuring the platform is not only deployed, but deeply adopted.
You'll monitor engagement, run working sessions, identify friction, and collaborate closely with technical teams to resolve issues and improve functionality. Once customers are stabilized, you'll drive renewals and expansions by uncovering new use cases, scoping additional workflows, and partnering with sales on commercial discussions.
Why It's Important
This is a foundational role that will shape how the company delivers value. You'll build the early customer success playbook, establish scalable onboarding frameworks, define ROI reporting standards, and create tight feedback loops into product development. Over time, this position is expected to evolve into leading the customer success organization.
What You Bring
4-8 years in customer-facing roles (CSM, solutions, implementation, product)
Experience in a fast-paced startup (Series B/C ideal)
Strong execution, communication, and project management skills
Comfort working with technical teams and complex workflows
A bias toward ownership and operational detail
Details
On-site: 4-5 days/week in San Francisco
Full-time
About the Company
The company builds AI systems that automate highly manual, operationally intensive workflows in a global, data-heavy industry. They focus on extracting value from unstructured information, improving accuracy, and creating intelligent workflow automation. The team is small, fast-moving, and values clarity, accountability, and craftsmanship.
Distributed Systems Engineer / AI Workloads
Senior engineer job in Sonoma, CA
We are actively searching for a Distributed Systems Engineer to join our team on a permanent basis. In this founding engineer role you will focus on building next-generation data infrastructure for our AI platform. If you have a passion for distributed systems, unified storage, orchestration, and retrieval for AI workloads we would love to speak with you. Our office is located in downtown SF and we collaborate two days a week onsite.
Your Rhythm:
Design, build, and maintain data infrastructure systems such as distributed compute, data orchestration, distributed storage, streaming infrastructure, machine learning infrastructure while ensuring scalability, reliability, and security
Ensure our data platform can scale by orders of magnitude while remaining reliable and efficient
Tackle complex challenges in distributed systems, databases, and AI infrastructure
Collaborate with technical leadership to define and refine the product roadmap
Write high-quality, well-tested, and maintainable code
Contribute to the open-source community and engage with developers in the space
Your Vibe:
3+ years of professional distributed database systems experience
Expertise in building and operating scalable, reliable and secure database infrastructure systems
Strong knowledge around distributed compute, data orchestration, distributed storage, streaming infrastructure
Strong knowledge of SQL and NoSQL databases, such as MySQL, Postgres, and MongoDB.
Programming skills in Python
Passion for building developer tools and scalable infrastructure
Available to collaborate onsite 2 days a week
Our Vibe:
Relaxed work environment
100% paid top of the line health care benefits
Full ownership, no micro management
Strong equity package
401K
Unlimited vacation
An actual work/life balance, we aren't trying to run you into the ground. We have families and enjoy life too!
Senior Dotnet Developer
Senior engineer job in Sacramento, CA
** Only Local Sacramento, CA Candidates are encouraged to apply **
** Healthcare & Public Sector Experience is Preferred **
Senior .NET Full Stack Developer (Public Sector, Healthcare, AWS)
We are seeking an experienced Senior .NET Full Stack Developer with strong expertise in designing and building secure, scalable applications using Microsoft .NET technologies. The ideal candidate should have hands-on experience working in Public Sector and Healthcare environments, along with solid proficiency in AWS cloud services.
Key Responsibilities
Design, develop, and maintain full-stack applications using .NET Core/.NET 6+, C#, Web API, Entity Framework, and SQL Server.
Develop front-end interfaces using Angular/React, JavaScript/TypeScript, HTML5, CSS3, and modern UI frameworks.
Architect and implement RESTful APIs, microservices, and enterprise-grade integrations.
Build and deploy cloud-native applications on AWS, using services such as:
AWS Lambda, API Gateway, ECS/EKS, EC2
S3, RDS, DynamoDB
Cognito, IAM
SQS/SNS, CloudWatch, CloudFormation
Implement secure authentication and authorization mechanisms (OAuth2, JWT, SSO).
Work with cross-functional teams including Product Owners, Business Analysts, and QA.
Participate in all stages of SDLC-requirements, design, coding, testing, deployment.
Perform code reviews and mentor junior developers.
Troubleshoot and optimize application performance, scalability, and reliability.
Required Skills & Experience
7-10+ years of hands-on experience in .NET / C# development.
Strong experience with .NET Core/.NET 5+, Web API, MVC, Microservices.
Proficient in front-end development with React/Angular.
Strong database skills with SQL Server, query optimization, and stored procedures.
Solid experience with the AWS ecosystem, including:
Serverless (Lambda), Containerization (ECS/EKS), Storage (S3), Databases (RDS/DynamoDB)
API Gateway, CloudWatch, IAM, VPC, SQS/SNS
CI/CD using AWS CodePipeline, CodeBuild, GitHub Actions, or equivalent
Experience in Public Sector and Healthcare domains, with understanding of:
Government security standards and compliance-driven development
Familiarity with containerization (Docker), Infrastructure as Code (CloudFormation/Terraform), unit testing frameworks.
Good to Have
Experience with Kubernetes (EKS).
Experience with reporting/analytics tools.
AWS Certifications (Developer Associate, Solutions Architect Associate/Professional).
Experience with NoSQL databases (MongoDB, DynamoDB).
Senior Ruby Software Developer
Senior engineer job in Sonoma, CA
Senior Software Engineer
Experience Level: Senior (7+ years)
About the Role
We're looking for a Senior Software Engineer who thrives on turning conversations into actionable, user-focused solutions. You'll work closely with stakeholders to deeply understand problems, identify root causes, and deliver thoughtful, high-quality software that stands the test of time.
Requirements
7+ years of experience designing, implementing, and testing software.
Strong fluency in core software design principles.
Experience with test-driven development (TDD).
Familiarity with service-oriented architecture and distributed system fundamentals.
Excellent ability to communicate technical concepts clearly to both technical and non-technical audiences.
Bonus points for experience with Microservices, Pub/Sub, Event Sourcing, Eventide, and Message DB.
Technologies We Use
Languages & Frameworks: Ruby on Rails
Event-Driven Tools: Eventide, Message DB
Databases: PostgreSQL
Infrastructure: Kubernetes, Terraform
Cloud: Azure
Senior Software Engineer
Senior engineer job in Sonoma, CA
My client is building next-gen automation and orchestration platforms and needs an engineer who can design fault-tolerant, distributed systems at scale.
If you've got hands-on experience with Functional Programming/Concurrency (Erlang, Elixir, Akka, Haskell) and strong distributed systems knowledge, and a track record with microservices, REST APIs, and SQL/RDBMS, this is a chance to work on real-time, high-availability systems that power automation and robotics.
Bonus if you've worked with telecom-grade systems, real-time platforms, or CI/CD with Docker/Kubernetes.
💡 Looking for someone excited to solve complex problems, mentor others, and push the boundaries of what's possible in large-scale automation.
Project Engineer
Senior engineer job in Sacramento, CA
Job Responsibilities:
The Project Engineer at FLINT supports the Project Manager and Project Superintendent to facilitate a well-managed project. The Project Engineer assists with the overall management and administration of projects including pre-construction services, estimating, subcontractor management, RFIs, submittal process, CORs, and SCOs. Responsibilities include:
Drafting and reviewing subcontracts and purchase orders
Thoroughly reviewing project documents and familiarizing with project participants
Representing the company in project meetings
Determining submittal requirements and maintaining the submittal log
Assisting in developing and maintaining project schedules
Conducting regular site visits to ensure proper construction and adherence to schedule
Administering As-Built drawings
Handling project correspondence and documentation
Obtaining necessary permits and ensuring timely receipt of record documents
Assisting in administering the Punch List
Performing additional duties as assigned
Job Requirements, Qualifications, Characteristics:
FLINT is seeking an experienced Project Engineer with 1+ years of experience to perform project management functions on small projects (
Good grasp of construction terminology and activities
Understanding of all trades including MEP and building permit process
Ability to estimate CORs, assist in bidding, and assemble project estimates
Familiarity with cost control and management processes
Basic understanding of prime contract types and delivery methods
Proficiency in project documentation, scheduling, safety practices, and technology tools (Fieldview, Viewpoint, Team VPT1, Bluebeam, Pype, GCPay, P6, and Vista)
Skills in business development and maintaining customer relations
Understanding of fee enhancement, risk mitigation, and client management
Ability to mentor team members and promote teamwork and cooperation
Software Engineer
Senior engineer job in Sonoma, CA
Founding Engineer
$140K - $200K + equity
San Francisco (Onsite Role)
Direct Hire
A fast growing early-stage start who recently secured a significant amount at Seed is actively hiring 3x software engineers to join their founding team. They're looking for people who are scrappy, move fast, challenge assumptions, and are driven to win. They build quickly and expect teammates to push boundaries.
Who You Are
Make quick, reversible (“two-way door”) decisions
Proactively fix problems before being asked
Comfortable working across a modern engineering stack (e.g., TypeScript, Python, containerisation, ML/LLM tooling, databases, cloud environments, mobile frameworks)
Have built real, shipped products
Thrive in ambiguity and fast-moving environments
What You'll Do
Talk directly with users to understand their workflows, pain points, and needs
Architect systems that support large enterprise usage
Build automated pipelines and intelligent agents that process and verify large volumes of data
Maintain scalable, robust infrastructure
Ship quickly - progress over perfection
The Reality
You'll work closely with the founding team and directly with customers
User value beats hype, trends, and “cool tech”
Expect a demanding, high-output culture
If you're a Software Engineer with 2 + years' experience and want to work in a growing start-up, please do apply now for immediate consideration.
Senior Project Engineer
Senior engineer job in Sonoma, CA
Senior Project Engineer - Heavy Civil (Earthwork & Paving)
Employment Type: Full-Time
I'm partnering with one of Northern California's most respected heavy civil general contractors to help them find a Senior Project Engineer with strong experience in earthwork and paving. This role is key to ensuring projects run smoothly, supporting project managers, and coordinating engineering, scheduling, and technical aspects on complex heavy civil projects.
Responsibilities:
Support project managers in planning, scheduling, and coordination of earthwork and paving projects
Review plans, specifications, and submittals to ensure compliance and feasibility
Coordinate with subcontractors, suppliers, and field teams to resolve technical issues
Monitor project progress, track costs, and assist in reporting to management
Ensure quality control, safety compliance, and adherence to project standards
Qualifications:
Proven experience as a project engineer in heavy civil construction
Strong technical, organizational, and problem-solving skills
Excellent communication and collaboration abilities
Proficiency with construction software and Microsoft Office
The company offers a highly competitive salary, excellent benefits, and clear opportunities for career progression within a respected, high-performing team.
Software Engineer
Senior engineer job in Sonoma, CA
🚀 Software Engineer - AI & Full Stack (San Francisco, CA)
💼 Full-Time | 🧠 1-4+ Years Experience | 💰 $150,000- 210,000
We're building self-improving software - AI that continuously creates, tests, and enhances digital experiences. Backed by Y Combinator, Gradient, and leaders from OpenAI, Uber, and Meta, we've raised $5M+ and are scaling fast.
If you love building things that
think for themselves
, this is your chance to help shape the next wave of intelligent software.
🧩 What You'll Do
Build an AI-powered paywall editor serving millions of users every day.
Work across the stack - Next.js frontend + Python backend - integrating the latest AI models & APIs.
Ship fast: design → code → test → deploy → learn → repeat.
Collaborate directly with founders, engineers, and customers to deliver exceptional user experiences.
⚡ What We're Looking For
Strong problem-solving and full-stack skills (Python, React, TypeScript).
Experience building user-facing products that people love.
Excellent communication and a bias for action.
Ownership mindset - you ship things that matter.
Startup experience = BONUS
BSc CompSc degree preferred
💡 Bonus Points
Experience with AI/LLM integrations.
Startup or founder-level experience.
Mobile skills (Swift, Flutter, React Native).
🧠 Tech Stack
Next.js (React/TypeScript), Zustand, Tailwind, Shadcn, Python, Supabase, Fly.io, Swift, Flutter, Expo
📍 In-person role - San Francisco (Mon-Sat)
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Senior Electrical Engineer
Senior engineer job in Sacramento, CA
Kitchell seeks an experienced and dedicated Senior Electrical Engineer to join our Engineering and Architectural Team in our Sacramento office and build a long-term career at one of the most innovative and growth-oriented building companies in the United States.
Overview
As a Senior Electrical Engineer, you will lead the design and analysis of electrical systems for a variety of projects, from concept through construction. This role involves developing technical specifications, ensuring code compliance, supporting construction and commissioning efforts, and contributing to business development initiatives.
Location:
This role is located in our Sacramento office and will be eligible for a hybrid schedule after a 60 waiting period.
Duties and Responsibilities
Prepares electrical system designs, including power distribution and lighting design, at the schematic, design development and construction document phases of a project.
Analyzes design and construction issues for solutions and/or incorporation.
Develops technical specifications as required.
Performs design/constructability reviews.
Comments on electrical issues, including cost, design and construction technology.
Evaluates site and building conditions and prepares technical reports of investigations.
Interprets applicable codes for compliance and applies this knowledge to documents prepared and/or reviewed to ascertain compliance with those codes, standards and requirements.
Assists in maintaining log of all revisions to standard drawings and specifications, and manages the file containing current specifications and logs of all proposed changes to the standard documents.
Assists in performing value engineering analysis and reviews.
Assists the estimating department in the development of conceptual and detailed cost projections.
Performs commissioning of electrical systems and monitors activities to ensure that construction, installation and operational testing conform to functional specifications and customer requirements.
Supports and participates in business development and marketing efforts including the preparation of proposals and presentations for new work.
Assists in the development and implementation of department design and document standards.
Stamps engineering documents as required.
Applies workplace health and safety policies and procedures to daily activities.
Executes additional duties and responsibilities as assigned.
Education and Experience
Bachelor's degree from an accredited four-year college or university in engineering or related field or equivalent experience required.
10 or more years of position related work experience in engineering or related field.
Knowledge and Skills
Knowledge of applicable codes and standards required.
Knowledge of the architecture, engineering and construction management industry is required.
Effective computer skills including proficient use of Word, Excel, Outlook, PowerPoint Bluebeam, Revit and specialized software appropriate to professional qualification required; and scheduling database (Project) software preferred.
Effective verbal and written communication skills, including the ability to foster and maintain effective interpersonal relationships is required.
Effective organization skills, including the ability to prioritize and plan work is required.
Ability to gather and interpret technical or abstract data to resolve extraordinarily difficult and uncommon problems is required.
Ability to work well under pressure and adapt to frequent change, delays or unexpected events is required.
Ability to manage a team of professionals in the production of quality projects delivered on time and within budget is required.
Commitment to the values of Kitchell with attention to honesty and integrity, quality of work, customer satisfaction, people development, profitability and managing change is required.
License and Certifications
State of California Professional Engineer license is required.
A valid driver's license with an acceptable motor vehicle record, free from suspensions or restrictions, is required.
Travel Requirements
This position is office based in Sacramento, CA Regional Office. Travel requirement is based on project needs through out California.
Work Environment
While performing the duties of this job, the employee must regularly work in an office and or construction environment.
Conditions regularly include exposure to outdoor elements, hot/cold temperatures, wet conditions, noise, atmospheric conditions and cramped quarters. The noise level in the work environment is occasionally loud. Must frequently travel.
Physical Requirements
While performing the duties of this job, the employee must regularly sit, stand, walk, talk or hear and use hands to finger, feel and handle; frequently reach with hands and arms; occasionally climb or balance and stoop, kneel, crouch or crawl. Specific vision abilities required by this job include close vision, distance vision, depth perception and ability to adjust focus. Must frequently lift and or move 10 pounds and occasionally lift and or move up to 50 pounds.
ABOUT OUR COMPANY
Founded in 1950, Kitchell began as a commercial contracting business and over the years developed new talents and enterprises, acquiring complementary businesses and expertise to remain competitive. Today, Kitchell Corporation serves as the holding entity for several companies that are integral to Kitchell's core business, as well as those that operate independently. We provide a wide range of services within the built environment, including general contracting, construction management, development, facilities management, engineering, architecture, and myriad other services. Our employees manage projects from our main offices located in Arizona, California, and Texas. We offer an entrepreneurial environment that fosters personal and professional growth through in-house education programs, formal and informal mentoring, and cross-training opportunities. At Kitchell, we prioritize internal growth and building careers from within. We consistently rank among the top places to work, thanks to our tenured staff and outstanding benefits that are designed to enrich our employees' physical, mental, emotional, and financial well-being. These benefits include company performance bonuses, discretionary stock options, incentive bonuses, health, and life insurance, health savings accounts (HSA) with wellness incentives, flexible spending accounts (FSA), 401(k) plans with a 4% company match, tuition reimbursement, weight loss programs, discounted auto insurance, identity theft protection, rewards programs, and much more.
Kitchell is an Equal Opportunity/Affirmative Action employer and will consider all qualified applicants for employment without regard to race, color, religion, sex, national origin, protected veteran status, or disability status.
The annual base salary range for this role is currently $125,000 - $175,000. The Company's salary ranges are determined by role, level, location, and alignment with market data. Individual pay is determined through interviews and an assessment of various factors, including job-related skills, relevant education and experience, abilities of the applicant and equity with other team members. The annual base salary range listed here is subject to change at any time, in the Company's discretion, and does not alter in any way the at-will nature of the employment relationship.
Mechanical Engineer
Senior engineer job in Sonoma, CA
Mechanical Engineer (Robotics)
We are partnering with a robotics company building complex electro-mechanical systems where mechanical design directly determines real-world performance. This role is for someone who doesn't just design parts, but owns motion, reliability, and scale.
What You'll Do
Own the end-to-end mechanical design of complex electro-mechanical systems with moving parts
Design and prototype custom mechanisms and actuators under aggressive timelines
Drive concepts from first prototype through high-volume production
Personally design parts for volume manufacturing processes, including:
Injection molding
Die casting
Stamping / sheet metal
Extrusion
Powder metal / MIM
Partner closely with contract manufacturers (CMs) to ensure DFM, reliability, and cost targets are met
Build systems that are not just elegant but robust, testable, and shippable at scale
What We're Looking For
Exceptionally strong mechanical intuition, you understand how things move, fail, and improve
Proven ability to design and prototype quickly without sacrificing rigor
Track record of shipping reliable, hardware products at scale
Deep hands-on experience designing custom mechanisms, joints, transmissions, and actuators
Experience owning mechanical architecture for complex systems with dynamic loads and tight tolerances
Comfortable operating across ambiguity, tight timelines, and high expectations
Required Background
Currently working at a robotics company (hands-on mechanical role)
Background in electro-mechanical systems with real moving parts (not CAD-only work)
Experience taking designs from concept → prototype → volume production
Ideal Signals
Designed robotic arms, legs, mobile platforms, end-effectors, or actuation systems
Personally responsible for motor selection, gearing, kinematics, or load paths
Close collaboration with electrical and controls teams
Bias for execution and ownership over documentation and theory
Project Engineer
Senior engineer job in Sonoma, CA
Project Engineer - Electrical (San Francisco, CA)
A well-established Bay Area electrical contractor is seeking a Project Engineer to support major public-works projects across San Francisco. The company specializes in street-lighting systems, traffic signals, low-voltage infrastructure, ITS/communications, and overhead traction power systems for municipal transit.
This role is ideal for an electrical engineer who wants to build a long-term career in electrical infrastructure and public utilities.
Role Overview
The Project Engineer will support project planning, coordination, documentation, and field execution. You'll work closely with Project Managers, Superintendents, and field crews to ensure successful delivery of complex municipal electrical projects.
Key Responsibilities
Project Coordination & Documentation
Prepare RFIs, submittals, as-builts, change orders, and close-out packages
Assist in developing schedules, phasing plans, and manpower forecasts
Track quantities, production, materials, and delivery schedules
Maintain communication with suppliers, subcontractors, and city inspectors
Technical & Engineering Support
Review and interpret plans, specifications, one-lines, and signal/lighting layouts
Support engineering tasks for:
Street-lighting and roadway illumination
Traffic signals, pedestrian safety systems, and controllers
Low-voltage ITS, communications, and fiber systems
Overhead traction power used by electric bus fleets
Assist with utility coordination, conduit routing, duct bank layout, and pole/fixture placement
Participate in QA/QC checks and site inspections
Field Support
Conduct site walks and support daily project reporting
Ensure work complies with NEC, Caltrans, and City & County of SF standards
Assist with safety documentation and equipment tracking
Cost Control & Estimating
Support cost tracking, production reporting, and invoice review
Assist with takeoffs and estimating for new bids and upcoming scopes
Requirements
Bachelor's degree in Electrical Engineering is required
0-5 years of experience in construction, electrical infrastructure, utilities, or low-voltage systems
Strong understanding of electrical fundamentals (voltage, current flow, grounding, circuits)
Ability to read plans, technical specifications, and electrical diagrams
Strong organizational and communication skills
Proficiency with MS Office; experience with Bluebeam, AutoCAD, or Procore is a plus
Valid driver's license and willingness to perform site visits
Compensation & Benefits
Base salary: $80,000 - $120,000 DOE
Company vehicle + fuel card
401(k)
Health & dental insurance
Paid time off and company-paid holidays
Strong long-term career progression into Assistant Project Manager and Project Manager roles
Project Engineer
Senior engineer job in Sonoma, CA
We are seeking a motivated Senior Project Engineer in the San Francisco Bay Area to support the delivery of heavy civil and/or water infrastructure projects.
The Senior Project Engineer works alongside the Project Management Team which is responsible to plan and oversee the project to ensure a timely and cost effective outcome. This includes budgeting, organization, implementation and scheduling of the project. Ensure the project is constructed in a safe, ethical manner and in compliance with all federal, state, and local laws. The Project Management Team can vary greatly depending on the size and complexity of the projects, which in turn will affect the number of responsibilities the Senior Project Engineer will be involved in.
Responsibilities:
Serve as a key member of the Project Management Team, supporting the planning and execution of projects.
Assist with budgeting, organization, scheduling, and implementation throughout the project lifecycle.
Ensure projects are delivered on time, within budget, and in alignment with quality expectations.
Promote and maintain safe and ethical work practices.
Ensure compliance with all applicable federal, state, and local regulations.
Adapt responsibilities based on the size and complexity of each project.
Qualifications:
Bachelor's Degree - Construction or Engineering preferred or equivalent experience.
3+ years prior relevant experience.
Requires deep knowledge of job area typically obtained through advanced education combined with experience.
Benefits:
Competitive Salary range (based on experience)
Excellent Insurance Package
401k w/match and Company Benefits
An amazing culture focused on Diversity and Inclusion