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Software test engineer jobs in Colorado

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  • Software QA Engineer (TS/SCI)

    Vantor

    Software test engineer job in Colorado Springs, CO

    Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. To be eligible for this position, you must be a U.S. Person, defined as a U.S. citizen, permanent resident, Asylee, or Refugee. Note on Cleared Roles: If this position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. Your Project: We build and maintain software applications used worldwide to collect, process, exploit, analyze, and visualize intelligence data in near real-time. These applications are both thick-client and web-based. They execute on Linux, Windows, MacOS, and Android. We need a skilled Software QA Engineer to provide support to our development team, our trainers, and our customers. What you'll do day-to-day (with your colleagues): Support the testing and evaluation of features and capabilities. Create and execute test plans for software features Provide feedback to software development staff regarding usability, workflows, and capabilities Provide online support to customers and users. Interface with government customers on a routine basis to discuss requirements, software development progress, bug fixes, training, and other technical support. Minimum requirements: Must be US Citizen with a current/active TS/SCI Bachelor's degree in computer science, systems engineering, or related field. Four additional years of experience may be substituted for a degree. 3 years of experience in intelligence data collection, planning, and exploitation. 3 years of experience with Testing and Evaluation . Preferred Skills: 3 years of experience as a trainer and/or subject matter expert Working knowledge of the various components and missions within the Intelligence Community and Department of Defense. Field exercise planning and execution Wireless communications protocols Python Understanding of Agile methodologies, specifically frequent, iterative releases that rely on user feedback to refine features over time SW Testing tools and practices Exposure to GIS technologies #LI-CJ1 #LI-Onsite #cjpost Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate's starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range. ● The base pay for this position within Colorado is: $71,000.00 - $119,000.00 annually. For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range. Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: ****************************** The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. The date of posting can be found on Vantor's Career page at the top of each job posting. To apply, submit your application via Vantor's Career page. EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.
    $71k-119k yearly 3d ago
  • Software Engineer in Test

    Evona

    Software test engineer job in Denver, CO

    Software Development Engineer in Test (SDET) Active US Security Clearance required Are you the kind of engineer who loves breaking things so the system becomes stronger? If you enjoy pushing distributed systems to their limits and building automation that mirrors real world behaviors, this role will be right up your street. A fast growing space technology company is searching for an SDET to help test, validate, and stress their mission critical software. You will work on technology that powers satellite operations, command and control services, and large scale real time behaviours. You do not need to be a space expert. If you love Python, automation, and solving complex problems, you will thrive here. What you will be doing • Building and automating tests that mirror real customer use cases • Simulating hundreds to thousands of satellites running operations • Acting as a chaos tester to uncover weaknesses and improve system resilience • Troubleshooting and fixing bugs across deployed backend systems • Testing APIs, databases, event driven architectures, and containerized environments • Supporting CI and automation within modern DevOps pipelines • Working closely with frontend, backend, and product teams to ensure quality at scale What you will need • Proficiency in Python • Experience with Playwright, Cypress, or similar end to end testing frameworks • Strong understanding of containerized and serverless architectures • Skilled in API testing and distributed databases • Experience building CI or automation pipelines, ideally with GitHub Actions • A track record of solving technical problems with minimal oversight • Active US Security Clearance (Secret required, TS or TS SCI preferred) • Must meet ITAR requirements (US citizen, US national, green card holder) What you will get • Hybrid work, two days per week on site with flexibility • Comprehensive health insurance with full coverage for employees • Unlimited PTO with a requirement to take at least 15 days • Most US federal holidays observed • Quarterly wellness benefits • 4 percent 401(k) matching • Quarterly offsites in great destinations • A team that values ownership, curiosity, and continuous improvement If you are excited by the idea of testing systems at scale and helping shape the future of satellite operations, I would love to speak with you. Feel free to reach out to Ciara Holmes at EVONA for more information or to apply directly.
    $64k-85k yearly est. 4d ago
  • Performance Tester

    Ampstek

    Software test engineer job in Denver, CO

    Contract w2 Required Skills • 4-8+ years of experience in Performance Testing & Engineering. • Strong experience with one or more tools: JMeter, LoadRunner, Gatling, BlazeMeter. • Proficiency in API testing (REST/SOAP), scripting, and parameterization. • Hands-on experience with APM tools (Dynatrace preferred for Charter). • Solid understanding of HTTP protocols, microservices architecture, Docker/Kubernetes, and cloud environments (AWS/Azure/GCP). • Good knowledge of SQL queries and database performance validation. • Ability to analyze CPU, memory, threads, logs, and performance metrics. • Experience working in telecom domain (Charter/Comcast/AT&T) is a plus. Preferred Skills • Knowledge of CI/CD pipelines (Jenkins, GitLab, Azure DevOps). • Experience with Kafka, messaging systems, or distributed systems. • Scripting experience in Python, Shell, or Groovy. • Understanding of Grafana, Prometheus, ELK stack. About Ampstek Ampstek is a global IT solutions partner serving clients across North America, Europe, APAC, LATAM, and MEA. We specialize in delivering talent and technology solutions for enterprise-level digital transformation, trading systems, data services, and regulatory compliance. Contact: Snehil Mishra 📧 ****************** 📞 Desk: ************ Ext. 125 🔗 LinkedIn 🌐 ***************
    $67k-89k yearly est. 1d ago
  • Quality Assurance Tester

    Insight Global

    Software test engineer job in Greenwood Village, CO

    Title: Quality Assurance Tester Duration: 18-24 month contract, possible conversion Schedule: Hybrid Onsite 4 days/week Pay Rate: 30-35/hr Required Skills & Experience Basic understanding of network protocols (TCP/IP, DNS, DHCP) and Wi-Fi troubleshooting. Familiarity with manual testing methodologies and test case design. Strong analytical and problem-solving skills. Excellent communication and documentation abilities. 6+ Month experience with QA. Nice to Have Skills & Experience Experience with defect tracking tools (e.g., Jira, Bugzilla) is a plus. Knowledge of defect management processes is a bonus. Job Description We are seeking a detail-oriented and motivated Entry-Level QA Tester to join our team for a large Telecommunications client. This role focuses on manual testing with an emphasis on Wi-Fi and network functionality. The ideal candidate will have a strong interest in quality assurance processes and a willingness to learn defect analysis and management. Key Responsibilities Execute manual test cases for web, mobile, and network-based applications. Validate Wi-Fi connectivity, network performance, and related configurations. Document and report defects clearly using standard tracking tools. Collaborate with developers and product teams to reproduce and resolve issues. Participate in test planning, including identifying edge cases and network scenarios. Assist in defect analysis and contribute to root cause discussions. Maintain accurate test documentation and follow QA best practices. This is a Level I role. Enterprise experience is not required, but personal projects, schooling or QA foundation is needed. This is onsite 4 days a week in Englewood, CO offering 30-35/hr. This is a contract with projected extensions up to 18-24 months.
    $59k-82k yearly est. 1d ago
  • Test Automation Engineer

    Net2Source (N2S

    Software test engineer job in Denver, CO

    Role name: Test Automation Engineer Work site: Greenwood Village, Denver , CO Duration: 12+ Months Note: Customer is only looking for Visa Dependent candidates who can work on W2 Job Description: "Experience: minimum 3+ years • Strong experience in test automation frameworks (Cucumber, Selenium). • Proficiency in Java for automation scripting. • Hands-on experience with K6 for performance testing. • Knowledge of AWS services and cloud-based testing environments. • Experience with Kafka for event-driven systems. • Familiarity with CI/CD tools (Jenkins, Git, etc.). • Good understanding of software testing methodologies and best practices." What are the Optional skills and skill proficiencies for this position? "• Experience with API testing tools (Postman, Rest Assured). • Knowledge of containerization (Docker/Kubernetes). Regards Rahul Bansiwaal linkedin.com/in/rahul-b-14b5a4168 ************ | Office: ************** EXT: 444 ********************* ****************** 270 Davidson Ave, Suite 704, Somerset, NJ 08873, USA Knowledge is Power.
    $65k-85k yearly est. 1d ago
  • Accessibility Tester

    Kavaliro 4.2company rating

    Software test engineer job in Denver, CO

    We're looking for an Accessibility Tester. The primary objective is to ensure that all company related applications comply with accessibility standards and provide an inclusive user experience for individuals with disabilities. Project Goals The main goals of this engagement are to: Identify accessibility issues in assigned OIT applications. Ensure compliance with relevant accessibility standards (e.g., WCAG 2.1 AA, Section 508). Provide actionable recommendations for remediation of identified accessibility barriers. The Accessibility Tester will perform comprehensive accessibility testing on applications as assigned. This includes, but is not limited to: Manual testing using assistive technologies (e.g., screen readers, keyboard navigation). Automated accessibility testing using appropriate tools. Review of design specifications and wireframes for accessibility considerations. Reporting of accessibility defects with detailed steps to reproduce and recommended solutions. Collaboration with development, business and QA teams to ensure accessibility issues are understood and resolved. Participation in accessibility review meetings and training sessions as required. The Accessibility Tester will be responsible for delivering the following: Detailed accessibility test plans. Accessibility test reports, including identified issues, severity, and recommendations. Defect reports for all accessibility findings in designated defect tracking system. Summaries of accessibility findings and progress updates. Documentation of best practices and accessibility guidelines as requested. Accessibility Tester Responsibilities Execute accessibility test cases thoroughly and accurately. Follow the Accessibility Checklist for Testing Team Document all findings and communicate them effectively to relevant stakeholders. Provide expert advice on accessibility best practices and remediation strategies. Maintain up-to-date knowledge of accessibility standards and guidelines. Adhere to project timelines and quality standards. Acceptance Criteria: Deliverables will be considered accepted upon review and approval by designated representative, confirming that the work meets the specified requirements and quality standards. Regular status updates will be provided through the SH weekly notes. QUALIFICATIONS: Excellent communication (written and verbal) Solid understanding of OOPS concepts Hands on experience with API and Webservice Testing, Good understanding of traceability Matrix, test strategy, test planning, Good understanding of Agile/Jira process Platforms include (Java, Mobile-PWA, SalesForce). Duties and Responsibilities: Sample Duties: Perform hands on testing - Write detailed scenarios for releases including providing estimates for test planning Review technical and business documents to prepare test cases Kavaliro provides Equal Employment Opportunities to all employees and applicants. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Kavaliro is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Kavaliro will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please respond to this posting to connect with a company representative.
    $41k-73k yearly est. 5d ago
  • Data Validation Tester

    Brooksource 4.1company rating

    Software test engineer job in Denver, CO

    Overview: Our client is hiring a Lead Data Validation Tester to drive data integrity across their video product ecosystem. This senior individual contributor role is ideal for someone with strong technical leadership and a proactive mindset, with potential to grow into a formal management role. Key Responsibilities: Lead validation efforts across multiple platforms and data pipelines Design and execute robust manual and automated test strategies Identify process gaps and propose improvements to testing workflows Collaborate with offshore teams and cross-functional partners Translate technical findings into business impact insights Build and maintain automated validation suites and dashboards Mentor junior testers and influence testing best practices Required Skills & Experience: 5+ years in QA, data validation, or related technical roles Strong proficiency in SQL, Python, and test automation frameworks (PyTest, WebdriverIO, Mocha) Experience testing data pipelines, APIs, and analytics workflows Excellent communication and problem-solving skills Proven ability to lead initiatives and influence peers Preferred Experience: Familiarity with client's proprietary tools (Photon, Quantum, Sequence) Experience with connected device testing (TVSDK platforms) Exposure to AI/ML-based validation tools Interest in developing leadership and mentoring capabilities
    $34k-64k yearly est. 3d ago
  • Lead Software Engineer

    The Ash Group

    Software test engineer job in Greenwood Village, CO

    *** W2 Contract Only - No C2C - No 3rd Parties *** The Ash Group is hiring a Lead Software Engineer (Full Stack) for our client (one of the largest private credit providers in the US agricultural economy) based in Greenwood Village, CO (hybrid). This is a high-impact role requiring 6-8 years of experience, with mandatory hands-on expertise in React (4+ years) and Node.js (4+ years). You will be leading the design and development of foundational SPA (Single Page Application) and BFF (Backend for Frontend) architecture on AWS, driving major digital transformation and automating business processes. Role Details Compensation: Competitive pay rate of $95 per hour. Benefits: Medical, dental, vision, and direct primary care benefits. After six months of employment, enjoy a 4% matched 401(k) plan with immediate 100% vesting. Duration: 6-month contract with possible extension. Location: Hybrid in Greenwood Village, CO (availability during 9 am - 5 pm MT core hours required). What You'll Be Doing Lead the design, development, and implementation of technical solutions as a Full Stack Engineer, with a focus on building robust, cloud-based solutions on AWS. Mandatory hands-on development using React, HTML/CSS, and Node.js, including the creation of Restful APIs for Single Page Applications. Support the RPA (Robotics Process Automation) team and develop solutions for improving quality, delivery, and customer/employee experience using automation technologies. Apply a strong understanding of the Software Development Lifecycle (SDLC) and CI/CD pipelines (e.g., Git, Docker, Kubernetes) to ensure reliable deployments and automation. Provide workday and after-hours production support, including troubleshooting, problem correction, and root cause analysis. What We're Looking For 6-8 years of experience as a Software Engineer. 4+ years of hands-on experience with Front-end technologies: React, HTML/CSS. 4+ years of hands-on experience with Back-end technologies: Node.js. Experience building Restful APIs and developing Single Page Applications (SPAs). Experience with AWS (or GCP, Azure) and container orchestration services like Docker and Kubernetes. Strong understanding of CI/CD pipelines, Git, and version control processes. Proficiency with SQL, Python, and open-source databases is a plus. This is a rare opportunity to work on an architecture being built from the ground up, driving the launch of new, transformative digital processes for a major financial institution. #SoftwareEngineer #LeadEngineer #FullStackDeveloper #React #NodeJS #AWS #SPA #BFF #RPA #Kubernetes #GreenwoodVillageJobs #ColoradoJobs #HybridWork #Contract
    $95 hourly 2d ago
  • Software Engineer

    Talent Stack

    Software test engineer job in Aurora, CO

    Job Title: Software Engineer Clearance: Active & transferable TS/SCI with Polygraph Salary: $130,000 - $145,000 Benefits: This role includes Medical, Dental, and Vision coverage, 6 weeks of paid PTO, Short-Term Disability, a 401(k) with 5% company match, and up to $8,000 in relocation assistance. Full Benefits package can be sent upon request. About the Company This role is being managed by Talent Stack LLC, a woman-owned recruiting firm specializing in cleared and technical placements. We proudly represent a confidential defense-focused client supporting critical national security programs. About the Role We are seeking a Software Engineer to support mission-critical ground systems for a leading defense customer. In this role, you will evaluate operational software issues, provide rapid solutions, and support integration and verification activities for new software baselines. This position is hands-on and ideal for engineers who thrive in real-time, high-impact operational environments. What You Will Do Support troubleshooting, maintenance, and documentation of operational software applications. Troubleshoot and isolate sources of system errors or unexpected performance. Execute testing, integration, and delivery of new software baselines. Perform in-depth analysis across complex, end-to-end operational systems. Work onsite within a secure environment supporting mission operations. Required Qualifications Bachelor's degree in STEM. 2+ years of professional level experience at a government contractor or agency. Experience coding in Java or C++. Hands-on experience with software development and/or software integration. Active, transferable TS/SCI with Polygraph required prior to start. Preferred Qualifications Experience with Git, Bitbucket, or similar configuration management tools. Ability to work in a structured configuration-controlled O&M environment supporting real-time applications. Experience with Linux/Unix, GIT, and SQL. Familiarity with JIRA, BitBucket, and Confluence. This role requires an active and transferable DoD Top Secret security clearance, with the ability to obtain and maintain TS/SCI access and polygraph. Only U.S. citizens are eligible for security clearance. Candidates without the required clearance cannot be considered for this position. Recruitment Agencies Disclaimer This position is posted for direct applicants only. We kindly request that external recruiters, staffing agencies, or search firms refrain from submitting candidates. Unsolicited resumes will be treated as direct applications, and no agency fees will be honored. Reference Number: X15
    $130k-145k yearly 5d ago
  • Software Engineer

    Acro Service Corp 4.8company rating

    Software test engineer job in Colorado Springs, CO

    As a software developer on an Internal Research and Development (IRAD) team. You will work in a collaborative environment to understand system requirements, create and implement new capabilities and algorithms. Many of the algorithms and capabilities implemented by the team will be mathematics and physics intensive complex solutions that will be highly critical to the system performance. In addition to software development you will also be expected to support reviews of requirements and test cases that are developed for the software capability. Basic Qualifications: Bachelor's degree in STEM related field, and 5 Years with Bachelors in Science; 3 Years with Masters; 1 Year with PhD. Applicants must have a current, active in-scope DoD-issued Secret security clearance at the time of application, which is required to start Recent and extensive Experience Developing Software in C++ or Java Quick to learn and absorb new concepts and information Recent MATLAB and or Python Experience Must have an Interim or Active Secret Clearance Unix/Linux Operating System Experience Must be able to support an in-person / closed-area work environment Preferred Qualifications: Highly experienced with Linux, scripting, and operations Experience with automated software requirements testing and analysis Experience with the battle management and or fire control systems Experience with containerization technologies (e.g., Docker, Kubernetes) and container orchestration. Experience with Behavior Driven Development (BDD) using tools like Gherkin and Cucumber for automated acceptance testing Experience with Static & Dynamic Code Analysis Tools and Fuzzing Tools such as: Coverity, Fortify, AND/OR SonarQube Experience developing software in an Model Based Systems Engineering (MBSE) environment. Experience with CI/CD, containers, and pipelines. Experience with Software Change Control, Change Management, Code Quality, Static Analysis, and CI/CD tools such as: Atlassian tool suite, Jira, GitHub, GitLab, SonarQube, Coverity, and Jenkins. Very solid background in math and physics Advanced degree in Mathematics or Physics or Computer Science.
    $81k-112k yearly est. 3d ago
  • Senior Insights Developer

    Eliassen Group 4.7company rating

    Software test engineer job in Englewood, CO

    Our client, an industry leader in telecommunications, has an excellent opportunity for a Senior Insights Developer to work on a 12+ month contract opportunity. Work will be a hybrid on-site/remote schedule in Englewood, CO. The Senior Insights Developer will lead projects to create automated dashboards, covering all phases throughout the entire development cycle (design to production) by utilizing ETL, data analysis, and data visualization skills. Due to client requirement, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $70 - $78 / hr. w2 Responsibilities: Collaborate with stakeholders to gather and document requirements, assessing the feasibility of analysis projects. Extract, analyze, and interpret data from various sources using statistical techniques, providing actionable insights and reporting. Capture and document requirements in Jira, ensuring clarity and alignment with business objectives. Review and validate solutions to ensure they meet specified requirements and business needs. Respond to data inquiries from internal teams, providing timely and accurate information. Work daily within the AWS environment, utilizing tools such as EMR, Lambda, S3, Step Functions, and Athena to manage and analyze data. Requirements: Bachelor's degree in Computer Science or equivalent Advanced knowledge of SQL, with a focus on big data environments. Proven experience with business intelligence solutions and the development lifecycle. Proficiency in data visualization tools, particularly Tableau. Hands-on experience with AWS services. Experience with Python or PySpark is advantageous. Familiarity with Hadoop ecosystems. Strong relationship-building and collaboration skills, especially in cross-functional teams. Effective communication skills, both written and verbal, with the ability to create concise and impactful presentations tailored to specific audiences. Experience in leveraging and reconciling data across multiple source systems. Translate business requirements into SQL queries and understand existing SQL code. Strong analytical skills, creativity in problem-solving, and attention to detail. Experience with ad hoc queries, data analysis development, and SQL development. Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact ********************. Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range. W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality. JOB ID: JN -112025-104380
    $70-78 hourly 2d ago
  • Staff Software Engineer - Filesystems and Data Protocols (C++)

    Maxonic Inc.

    Software test engineer job in Denver, CO

    Job Title: Staff Software Engineer - Filesystems and Data Protocols Job Type: 6 mths CTH or Direct FTE, both okay. Responsibilities: We are looking for a highly skilled Staff Software Engineer with specialization in Filesystems and Data Protocols to join the team. In this pivotal role, you will design, develop, and optimize the core components of Infinia, Client's advanced distributed intelligent data platform. You will leverage cutting-edge AI development and deployment tooling-prompt engineering, to reduce time-to-insight, accelerate delivery velocity for better Business outcomes. Key Responsibilities: Design and implement Data Orchestration layer on top of distributed Filesystem. This module will integrate Infinia on premise solution with multi cloud Data Services. Design and enhance the core components of Infinia for high performance and scalability. Own critical customer case escalations end-to-end, including deep root cause analysis and mitigation strategies. Drive design discussions, build prototypes and contribute to deliver high quality products Utilize AI-powered debugging, log analysis, and system pattern recognition tools to accelerate resolution. Conduct code reviews and improve scalability, stability, reliability and performance of INFINIA solutions Required Qualifications: Bachelor's or master's degree in computer science, Software Engineering, or a related field. 8+ years of Data Storage and management, software engineering experience. Strong expertise in C++ Preferred Skills: Experience with cloud Data Storage services like AWS S3 or Google Cloud Storage (GCS). Data movement, copy workflows: remote replication, cloud backup/restore Experience with real-time data processing and streaming frameworks such as Apache Kafka. Experience with Distributed systems About Maxonic: Since 2002 Maxonic has been at the forefront of connecting candidate strengths to client challenges. Our award winning, dedicated team of recruiting professionals are specialized by technology, are great listeners, and will seek to find a position that meets the long-term career needs of our candidates. We take pride in the over 10,000 candidates that we have placed, and the repeat business that we earn from our satisfied clients. Interested in Applying? Please apply with your most current resume. Feel free to contact Nina Schindler (**************** / ************** for more details.
    $89k-122k yearly est. 4d ago
  • Sr UI Software Engineer

    SBS Creatix 3.6company rating

    Software test engineer job in Boulder, CO

    Job Title: Senior UI Software Engineer (On Site) No C2C Offers please. Candidates must be able to work in the US without a sponsor. Our client is engineering a next-generation Work Orchestration platform-one that transforms complex organizational processes into clear, intuitive, action-driven experiences. Their UI and UX are central to that mission. They develop their front end using WiseJ, enabling engineers to build rich, enterprise interfaces entirely in C# and .NET-with strongly typed code, centralized controls , and without the typical bloat of sprawling JavaScript frameworks and constantly shifting third-party libraries. Their engineering team is supported by a world-class, fully-managed Figma Design System, including design tokens, responsive variants, and component-compliant wireframes and prototypes. This gives engineers a complete, consistent UI blueprint-freeing them to focus on architecture, performance, and behavior rather than recreating UI patterns from scratch. If you want to build beautifully engineered, large-scale UI systems in an environment designed for clarity and craftsmanship, Nexee is the place. Position Overview: We are seeking a Senior UI Software Engineer to lead development of a an enterprise-grade interface. You will architect highly interactive, intelligent User Interfaces using a unified .NET and WiseJ stack, while collaborating closely with product and design to deliver a first-class user experience. Key Responsibilities • Architect and implement high-performance user interfaces using WiseJ, C#, and .NET, with a strongly typed and unified codebase. • Translate Figma design system components, wireframes, and prototypes directly into consistent, pixel-aligned engineering implementations. • Develop adaptive layouts, multi-panel interfaces, drag-and-drop tools, and other advanced interaction patterns for enterprise-scale use cases. • Maintain clean, composable, reusable UI architecture that avoids unnecessary libraries and minimizes complexity. • Collaborate with UX, product, and backend engineering to ensure seamless integration across all system layers. • Contribute to UI standards, internal tooling, code quality, and mentorship of other engineers. • Team management experience. Qualifications Required • Bachelor's in Computer Science, Engineering, or related field. • 6-10+ years of UI engineering experience with complex, data-heavy, or enterprise platforms. • Strong proficiency in C#, .NET, Visual Studio, and object-oriented UI development. • Experience designing and shipping real-time, component-driven UI systems. • Deep understanding of UI architecture, state management, and interaction modeling. Preferred (Not Required) • Experience with WiseJ or other server-managed UI frameworks. • Experience working with structured Figma design systems, including tokens, variants, and engineering-aligned prototypes. • Background building reusable UI component libraries and internal platform frameworks. • Familiarity with distributed systems, real-time data and workflow automation tools. Why this job? • Competitive salary and benefits • Collaborative, high-talent, on-site engineering culture in Boulder, CO • A unified, strongly typed UI stack-no fractured front-end layers • Direct influence over a platform designed for massive scale • A culture that values clarity, simplicity, craftsmanship, and deep work How to • Competitive salary and benefits. • A flexible and dynamic work environment. • Opportunities for professional growth and development. • A culture that values work-life balance. • The chance to be part of a transformative enterprise solution.
    $87k-109k yearly est. 3d ago
  • Systems Software Engineer

    Sunbelt Controls 3.3company rating

    Software test engineer job in Denver, CO

    Now Hiring: Systems Software Engineer II 📍 Denver , Colorado | 💰 $108,000 - $135,000 per year 🏢 About the Role We're looking for an experienced Systems Software Engineer II to join Sunbelt Controls, a leading provider of Building Automation System (BAS) solutions across the Western U.S. In this role, you'll develop and program databases, create custom graphics, and integrate control systems for smart buildings. You'll also support project startups, commissioning, and troubleshooting - working closely with project managers and engineers to deliver high-quality, energy-efficient building automation solutions. If you have a passion for technology, problem-solving, and helping create intelligent building systems, this opportunity is for you. ⚙️ What You'll Do Design and program BAS control system databases and graphics for assigned projects. Lead the startup, commissioning, and troubleshooting of control systems. Work with networked systems and diagnose LAN/WAN connectivity issues. Perform pre-functional and functional system testing, including LEED and Title 24 requirements. Manage project documentation, including as-builts and commissioning records. Coordinate with project teams, subcontractors, and clients for smooth execution. Mentor and support junior Systems Software Engineers. 🧠 What We're Looking For 2-5 years of experience in Building Automation Systems or a related field. Associate's degree in a technical field (Bachelor's in Mechanical or Electrical Engineering preferred). Proficiency in MS Office, Windows, and basic TCP/IP networking. Strong organizational skills and the ability to manage multiple priorities. Excellent communication and customer-service skills. Valid Colorado driver's license. 💎 Why You'll Love Working With Us At Sunbelt Controls, we don't just build smart buildings - we build smart careers. As a 100% employee-owned company (ESOP), we offer a supportive, growth-oriented environment where innovation and teamwork thrive. What we offer: Competitive salary: $108K - $135K, based on experience Employee-owned company culture with a family-oriented feel Comprehensive health, dental, and vision coverage Paid time off, holidays, and 401(k)/retirement plan Professional growth, mentorship, and ongoing learning opportunities Veteran-friendly employer & Equal Opportunity workplace 🌍 About Sunbelt Controls Sunbelt Controls is a premier BAS solutions provider serving clients across multiple industries, including data centers, healthcare, education, biotech, and commercial real estate. We specialize in smart building technology, system retrofits, analytics, and energy efficiency - helping clients reduce operational costs and achieve sustainable performance. 👉 Apply today to join a team that's shaping the future of intelligent buildings. #Sunbelt #BuildingAutomation #SystemsEngineer #HVACControls #BASCareers
    $108k-135k yearly 5d ago
  • Senior Software Engineer

    Talent Navigation Experts

    Software test engineer job in Greenwood Village, CO

    About the Role: This role is a Senior .NET Full Stack Developer for a client of ours in the tech solutions space. Looking for someone with 5+ full stack development. Required Skills: Bachelor's Degree in IT, Computer Science, or similar 5+ years of full stack development using .NET (C#) frameworks NoSQL experience AWS and / or Azure experience About the Company: Our client in the tech solutions space is a small but growing company based in Colorado. They have a superior software product and are continuing to grow at a rapid pace. They work hard and have an excellent culture.
    $81k-106k yearly est. 4d ago
  • Software Engineer

    Understanding Recruitment

    Software test engineer job in Denver, CO

    🚀 Graduate Software Engineer - Intelligent Transport 📍 Denver, CO | Hybrid (3 days onsite) Join a fast-growing AI-driven logistics startup transforming global transport. With backing from top-tier investors, we're building systems that make moving goods smarter, faster, and safer. Kick-start your career by building technology that ships and makes a real-world impact. 🌟 What You'll Do Build end-to-end product features with TypeScript (React/Next.js) and Python (FastAPI/Django) Integrate real-time AI models into production systems Create smooth, high-performance user experiences and scalable APIs Collaborate with senior engineers and ship production code from day one 💡 What You'll Gain Hands-on experience deploying AI in real-world applications Mentorship from a senior Denver-based engineering team Fast-moving startup environment where your ideas matter Real ownership - see the impact of your work immediately 👀 What We're Looking For Degree in Computer Science or related field (2024/2025 grads welcome) Strong programming skills in Python and/or TypeScript Curiosity, initiative, and a problem-solving mindset Ability to work onsite in Denver at least 3 days per week Build the systems that move the world. Apply now and make your mark from day one.
    $62k-84k yearly est. 3d ago
  • Graduate Software Engineer

    Acceler8 Talent

    Software test engineer job in Denver, CO

    Denver • Full-time • Early-career 🚀 Kick-start your engineering career by building real, production AI systems. We're a fast-growing, venture-backed company transforming global transportation through intelligent, AI-powered infrastructure. As a Graduate Software Engineer, you'll ship code used in live operational environments - not side projects or internal tools. This is an opportunity to learn fast, take ownership early, and work on complex systems alongside experienced engineers. What You'll Do Build full-stack features with TypeScript (React/Next.js) and Python (FastAPI/Django) Develop scalable backend services and APIs powering AI-driven decision tools Deploy and integrate machine learning models into real-world workflows Optimise systems for performance, reliability, and efficiency Ship quickly in a collaborative, high-accountability engineering environment What We're Looking For Final-year or recent Computer Science graduates from top universities Strong fundamentals in algorithms, data structures, and distributed systems Hands-on coding experience from internships, projects, or research Evidence of excellence: open-source, hackathons, impactful university work Curious, ambitious engineers who love solving hard problems Able to work onsite in Denver at least 3 days/week Why Join Us Build production AI infrastructure from day one High ownership and meaningful, user-facing impact Mentorship from senior engineers + clear growth pathways Work on systems shaping the future of global logistics and mobility
    $62k-84k yearly est. 2d ago
  • Senior Back-End Software Engineer (Golang)

    Hydrogen Group

    Software test engineer job in Denver, CO

    We currently have multiple, full-time direct hire, Senior Software Engineering roles with a customer in Denver within one of the fastest growing global industries. Please reach out for more details! Qualifications Previously worked on high throughput and low latency systems. Experience in coaching and mentoring in technical subject areas. Ability to prioritize people and conversations over process. Previously thrived in a fast-paced agile environment. An aptitude and enjoyment in learning new technologies. Commercial experience using GCP with Kubernetes. Experience Microservice development, ideally with Golang, Rust, or equivalent. Knowledge of React and Typescript. Exposure to C#, .net, MSSQL and/or WPF. Experience in a delivery focused culture. ...
    $81k-106k yearly est. 3d ago
  • Software Engineer

    Insight Global

    Software test engineer job in Englewood, CO

    Hybrid onsite in Englewood, CO $50-65/hr Ongoing long-term contract Required Skills & Experience Experience mentoring other developers and delivering full-stack software features Proficiency with Node.js, React, TypeScript, Python, and GraphQL Experience with relational (SQL) and NoSQL databases Experience deploying cloud-based applications Familiarity with source control and branch management Experience working with microservices Bachelor's degree in a related field or equivalent experience Nice to Have Skills & Experience 6 or more years of professional experience in software development Experience with AWS infrastructure and services AWS Developer Certification Experience with Git-based platforms (GitHub, GitLab, Bitbucket) Familiarity with Docker, Kubernetes, Redis, and an ORM built over a relational database Understanding of infrastructure as code (IaC) and Terraform Experience with experimentation, statistical testing, and data analysis Master's degree or higher in a related field Job Description A client of Insight Global is looking to add a SR Software Engineer to their team for a Hybrid position in Englewood Colorado. As a Senior Software Engineer on the Configuration Management and eXperimentation team (CMX), in the applied AI and data science program, you'll help design and develop software solutions that expand our custom experimentation and configuration management platform. You'll work in a full-stack environment using AWS, MySQL, Redis, Prisma ORM, Node.js, Python, GraphQL, Nest.js, and React. As a member of the CMX team, you'll be part of a supportive, cross-functional team that values mentorship, continuous learning, and shared success. You'll work closely with engineers, data scientists, designers, and product stakeholders to solve complex problems and deliver impactful solutions. The CMX team is responsible for enhancing and supporting custom, enterprise-level experimentation and configuration management platforms. We facilitate experimentation and configuration management through web-based UIs and supporting services that enable users to draft and deploy A/B tests, progressive deployments, and JSON configuration changes. We are committed to building a team with diverse experience where everyone can bring their full self to the team.
    $50-65 hourly 3d ago
  • Graduate Software Engineer

    Understanding Recruitment

    Software test engineer job in Denver, CO

    Denver • Full-time • Early-career 🚀 Kick-start your engineering career by building real, production AI systems. We're a fast-growing, venture-backed company transforming global transportation through intelligent, AI-powered infrastructure. As a Graduate Software Engineer, you'll ship code used in live operational environments - not side projects or internal tools. This is an opportunity to learn fast, take ownership early, and work on complex systems alongside experienced engineers. What You'll Do Build full-stack features with TypeScript (React/Next.js) and Python (FastAPI/Django) Develop scalable backend services and APIs powering AI-driven decision tools Deploy and integrate machine learning models into real-world workflows Optimise systems for performance, reliability, and efficiency Ship quickly in a collaborative, high-accountability engineering environment What We're Looking For Final-year or recent Computer Science graduates from top universities Strong fundamentals in algorithms, data structures, and distributed systems Hands-on coding experience from internships, projects, or research Evidence of excellence: open-source, hackathons, impactful university work Curious, ambitious engineers who love solving hard problems Able to work onsite in Denver at least 3 days/week Why Join Us Build production AI infrastructure from day one High ownership and meaningful, user-facing impact Mentorship from senior engineers + clear growth pathways Work on systems shaping the future of global logistics and mobility
    $62k-84k yearly est. 2d ago

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