Front end developer jobs in Stamford, CT - 139 jobs

Long Island University Job Title: Junior Developer / Database Administrator Employment Type: Full-time Department: Information Technology / Institutional Research Salary Range: $76,000-$80,000 About the Role We are seeking a motivated Junior Developer / Database Administrator (DBA) to join our growing IT team. This position combines application development, database management, and data reporting support. The ideal candidate enjoys working with data and systems that drive decision-making across the institution. You'll collaborate with developers, analysts, and reporting staff to support mission-critical applications and assist in maintaining the accuracy and accessibility of institutional data used for reporting, compliance, and analytics. Key Responsibilities Application Development & Database Administration * Assist in designing, coding, testing, and maintaining web and database applications. * Write and optimize SQL queries, stored procedures, and functions to support both applications and reporting. * Monitor and maintain database performance, availability, and security (Oracle, SQL Server). * Perform data imports and exports processes for institutional data needs. * Help identify and resolve application and database performance issues. * Support integration between systems and third-party applications. * Utilize version control tools such as Azure DevOps or Git to manage and track code changes. * Participate in code reviews, change control, and deployment processes. Institutional Reporting Support * Assist in preparing, validating, and delivering data for institutional, state, and federal reporting. * Work with the Institutional Research team to ensure data integrity across systems. * Develop and maintain queries, views, and datasets used in recurring crystal reports. * Support automation and process improvement efforts in data collection and reporting. * Ensure data is handled securely and consistently with institutional policies and privacy regulations. Qualifications Required: * Bachelor's degree in Computer Science, Information Systems, Data Analytics, or a related field; or equivalent experience. * 1-3 years of experience in software development, database management, or data reporting. * Proficiency in SQL (Oracle, SQL Server). * Familiarity with one or more programming languages (C#, Python, JavaScript, etc.). * Strong analytical and problem-solving skills. * Ability to communicate effectively with both technical and non-technical users. * Attention to detail and commitment to data accuracy. Preferred: * Experience supporting Institutional Research or data reporting functions. * Experience with Oracle Database (PL/SQL, schema management, performance tuning). * Familiarity with .NET, ASPX/ASPX.NET, or similar development frameworks. * Knowledge of data governance, FERPA, or higher education data standards (IPEDS, state reporting, etc.). LIU is an equal opportunity employer. LIU is committed to extending equal opportunity in employment to all qualified candidates who can contribute to the diversity and excellence of our academic community. LIU encourages applications from all qualified individuals without regard to race, color, religion, genetic information, sexual orientation, gender and/or gender identity or expression, marital or parental status, national origin, ethnicity, citizenship status, veteran or military status, age, disability or any other basis protected by applicable local, state or federal laws. Hiring is contingent on eligibility to work in the United States.

**Our Purpose** _Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._ **Title and Summary** Lead Front End Developer - Agentic AI Platform About Mastercard Mastercard is a global technology company in the payments industry, connecting billions of consumers, financial institutions, merchants, governments, and businesses worldwide. We are driving the future of commerce by enabling secure, simple, and smart transactions. Artificial Intelligence is at the core of our strategy to make Mastercard stronger and commerce safer, smarter and more personal. Overview At Mastercard, we're building an Agentic AI platform to transform how our products and services deliver intelligent, personalized experiences. We are looking for a skilled Lead Front-End Developer to create intuitive, accessible, and engaging user interfaces that connect users seamlessly to AI-powered capabilities. You'll be responsible for turning design concepts into interactive, production-ready experiences that align with Mastercard's design standards and deliver exceptional usability. As a Lead Front-End Developer, you will design, develop, and optimize the platform's user-facing components. You will work closely with UX designers, backend engineers, and AI engineers to ensure the platform's interface is both visually appealing and functionally robust, following Mastercard's brand and design guidelines. Key Responsibilities - Front End Development - Build and enhance responsive, user-friendly interfaces for the Agentic AI platform using modern front-end frameworks (e.g., React, Angular, or Vue.js). - Design System Alignment - Implement Mastercard's design guidelines, ensuring brand consistency, accessibility, and usability across the platform. - Integration - Connect front-end interfaces to backend services and APIs, ensuring efficient data flow and dynamic interactions. - Performance Optimization - Ensure fast load times, smooth interactions, and scalable design for a variety of devices and browsers. - Testing & Quality Assurance - Write unit and integration tests and participate in code reviews to maintain high-quality standards. - Continuous Improvement - Stay up to date with emerging front-end technologies and best practices to enhance platform capabilities. All About You: - Strong proficiency in HTML5, CSS3, JavaScript/TypeScript, and one or more modern front-end frameworks (React preferred). - Experience implementing responsive and accessible web applications (WCAG compliance). - Familiarity with RESTful APIs and integrating front-end with backend services. - Understanding of UI/UX principles and ability to collaborate effectively with designers. - Knowledge of version control tools (e.g., Git) and CI/CD workflows. - Experience working with design systems or component libraries. - Passion for delivering clean, maintainable, and scalable code. Why Join Us? At Mastercard, you'll help shape the future of AI in global commerce-solving complex problems at scale, enabling financial inclusion, and ensuring the security and trust that define our brand. \#AI2 Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly. **Corporate Security Responsibility** All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: + Abide by Mastercard's security policies and practices; + Ensure the confidentiality and integrity of the information being accessed; + Report any suspected information security violation or breach, and + Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations. **Pay Ranges** Arlington, Virginia: $150,000 - $254,000 USD Austin, Texas: $130,000 - $221,000 USD Boston, Massachusetts: $150,000 - $254,000 USD Purchase, New York: $150,000 - $254,000 USD Seattle, Washington: $150,000 - $254,000 USD

Mindlance is a national recruiting company which partners with many of the leading employers in the Life Sciences, IT, and Financial Services sectors, feel free to check us out at ************************* Job Description Start Date: 5/2/2016 End Date: 10/28/2016 Location: Melville, NY, US Sr. Developer - Development in Morristown, New Jersey or Melville, New York, US. Other Required Qualifications/Experience Qualification UI Development Minimum Years Required 3 Qualification Dashboard Development Minimum Years Required 3 Qualifications: Roles and Responsibilities includes - - Deliver Search Strategy enhancements including but not limited to: - Ontology, Taxonomy and Tagging system deployment and enhancements Integration of additional prioritized content sources - UI changes and enhancements Search Analytics Dashboard deployment and configuration - Enable the leveraging search to enhance core APP functionality in the areas like personalization and customization capabilities - Enable integration of search with related APP platforms like Kaltura Enterprise Video Portal as required to deliver the highest quality user experience - Deliver data driven Search and User Experience enhancement analysis capabilities by deploying an Enterprise Search Analytics Dashboard and customized reports - Support for delivery of work streams and stakeholder search requirements Additional Information Reach me at ************

Job Description We are looking for a full stack web developer to build and ship production software with strong technical judgment and high UX quality. This role spans frontend, backend, and deployment, with an emphasis on modern web development while maintaining and extending existing Django systems. The role requires high autonomy and the ability to deliver usable, polished experiences without heavy design input. Core Responsibilities Build and ship full-stack web applications Design and implement strong user experiences with minimal designer input Build and maintain backend logic and APIs, including Django services Integrate frontend applications with Django-based backends Own deployment and production operation Maintain performance, reliability, and code quality across the stack Use AI-assisted IDEs to increase development speed and effectiveness Requirements Backend Django, JavaScript, and Python in production environments API design and backend system maintenance Product & Execution Ability to work independently from problem definition to production Strong UX judgment without reliance on detailed designs Development Environment Cursor, Claude Code, or Codex preferred Bonus Experience TypeScript Next.js React Tailwind CSS Vercel and/or Cloudflare shadcn/ui Bun

We are looking for a full stack web developer to build and ship production software with strong technical judgment and high UX quality. This role spans frontend, backend, and deployment, with an emphasis on modern web development while maintaining and extending existing Django systems. The role requires high autonomy and the ability to deliver usable, polished experiences without heavy design input. Core Responsibilities Build and ship full-stack web applications Design and implement strong user experiences with minimal designer input Build and maintain backend logic and APIs, including Django services Integrate frontend applications with Django-based backends Own deployment and production operation Maintain performance, reliability, and code quality across the stack Use AI-assisted IDEs to increase development speed and effectiveness Requirements Backend Django, JavaScript, and Python in production environments API design and backend system maintenance Product & Execution Ability to work independently from problem definition to production Strong UX judgment without reliance on detailed designs Development Environment Cursor, Claude Code, or Codex preferred Bonus Experience TypeScript Next.js React Tailwind CSS Vercel and/or Cloudflare shadcn/ui Bun

My Client is headquartered in Greenwich, Connecticut and has over 1,200 employees in its offices in the USA, Switzerland, Canada, Hong Kong, UK, Australia, Hungary, Russia, Japan, India, China and Estonia. My Client is regulated by the SEC, FINRA, NYSE, FCA and other regulatory agencies around the world. Job Description 1. Design, develop and maintain responsive web applications for client's web-based account registration, account maintenance, tax, and compliance systems. 2. Typical projects will be focused on web client/web server development and include middleware and backend integration. 3. The majority of development will be using Java and Java Script with some exposure to PL/SQL, Python, Unix shell scripts and other general-purpose languages and tools. Qualifications 1. BS/MS Computer Science, Engineering, Mathematics 2. Strong knowledge of programming concepts and algorithms 3. Strong knowledge of Java or similar general purpose OO language. 4. Experience with browser markup and scripting (JScript, HTML5) 5. Experience with database backed web applications. 6. Experience with concurrency 7. Prior experience (including college projects) with interactive Web applications. 8. Familiar with web applications, concepts, and tools Additional Information All your information will be kept confidential according to EEO guidelines.

Hello, Greetings from Jobsbridge! Jobsbridge, Inc. is a fast growing Silicon Valley based I.T staffing and professional services company specializing in Web, Cloud & Mobility staffing solutions. Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Job Description The UI team is seeking a proficient front end web designer to assist with various UI/UX projects. The successful candidate will be passionate about web design and development; take pride in and ownership of assigned projects; possess a desire to learn new approaches and technology; able to work in a fast-paced, multi-project environment. The successful candidate will participate in all phases of front end projects including requirements gathering, design, development, usability testing, deployment, and maintenance. Responsibilities Develop wireframes and high fidelity mockups from requirements Ensure UI/UX design is in accordance with corporate branding; style guides; design patterns and other requirements Help create and maintain UI/UX design patterns; style guides; style tiles and standards Help create, maintain and socialize UI/UX standards Help identify and evaluate new technologies and methodologies regarding UI/UX design Create and maintain design templates Required Skills and Experience 5 years minimum designing web site front ends Effective ability to conceptualize and communicate UI/UX ideas to technical and non-technical stakeholders Proficiency with design approaches and tools including sketching; wireframing; high fidelity mockups Proficiency with Adobe CC applications including Photoshop; Illustrator; InDesign and others Proficiency with Microsoft Office products including Word; Outlook; PowerPoint; Excel Responsive Web Design: working knowledge as it affects the design phase UI/UX: strong understanding of principles; standards and best practices Additional skills and experience that would be considered a big plus 8 years minimum developing web site front ends Proficiency with video editing and production (Adobe Premier; Camtasia) Experience with Balsamiq; Sketch; Axure; InVision; Adobe XD HTML5 and CSS3: working knowledge or practical experience with coding jQuery: working knowledge or practical experience with jQuery libraries and interfaces Responsive Web Design: working knowledge or practical experience with regard to creating/maintaining responsive sites Experience with Twitter's Bootstrap framework. HTML Email: experience designing responsive HTML emails Cross-browser compatibility: experience testing with IE, Firefox, Chrome, Safari, browser developer tools. Web Accessibility: experience integrating WCAG standards in design. Qualifications UI/UX,HTML5 ,CSS3, Additional Information Only GC/Citizen/OPT

360 IT Professionals is a California base Minority Business Enterprise specializing in the field of IT Consulting and Staffing. Since our Inception we have been providing industry leading IT solutions for Staffing and Software Development. We have more than 30 IT Staffing Services contracts across USA and working closely with Fortune 500 Companies and Key Private sector Agencies. We are providing staffing support to more than 10 State Customers across USA and have successfully staffed for more than 260 roles in last 6 months. Job Description Position: senior UI Developer Location: Danbury, CT Contract: 18 months to possible perm Interview process: local it is a test, phone, to face to face. Qualifications MUST HAVE: Javascript, Jquery, Bootstrap, HTML, CSS, backbone, JSON NICE to have: Jenkins or any CI tools and any UX skills Additional Information Status; Green Card or US Citizen

TFA Staffing Co.is a full service professional staffing agency.We specialize in the High Technology profession with talent in many different areas. A faster pace - The average professional at TFA Staffing completes 8 to 12 engagements in a year across numerous areas of practice and client industries. Large Enterprise Clients: Our consultants work on critical projects for some of the world's largest companies. We have a diverse set of clients with an emphasis in Professional and Executive Level, Financial Services, Information Technology, Health Care, Sales, Engineering, Industrial and Skilled Labor. We offer candidates complete confidentiality in their search and provide employers with simple, targeted searches from a database of qualified candidates through partnerships with afilliate companies. Job Description Job ID: 1919-014 Green card or citizen only No relocation Firm offers software and software-enabled services for the financial services industry including Institutional Asset Managers , Hedge Funds, and Insurance Firms. Description: Candidate will become part of the development team that supports and enhances the Web portals that delivers services and product for our client base. Responsibilites New Development Maintenance programming and new development If you would like to discuss this position please feel free to contact " in strictest confidence: Qualifications Green card or citizen BS Strong HTML/CSS/JavaScript/AJAX and JQuery Experience 2+ years of ASP.NET, C# Experience and MVC MS SQL or other Relational Database Experience Additional Information Please send resume/CV in word doc format ASAP to ~ [email protected] (P) ************

Job Description Trexquant is a growing systematic fund at the forefront of quantitative finance, with a core team of highly accomplished researchers and engineers. We are in the process of optimizing and reimagining our quant platform to keep pace with our expanding trading operations. To support our rapid growth, we are seeking a technically adept Senior Full Stack Software Engineer to reimagine and help build the next-generation of trading platforms. As a Senior Full Stack Developer at Trexquant, you will join a team that prides itself in performing at the intersection of design and technology. You will work alongside leading quants, researchers, strategists, and portfolio managers to develop and optimize a cutting-edge system. With your technical expertise, you will manage project priorities, deadlines, and deliverables to support our growing company. You will design, develop, test, deploy, maintain, and enhance software solutions to align with our team's core priorities. If you're excited by the opportunity to build from the ground up, push technical boundaries, and drive rapid progress, we want to hear from you. Responsibilities Adopt an entrepreneurial mindset, excelling in a dynamic environment while turning ideas into actionable results. Design and develop production-ready full-stack web applications using modern web frameworks and technologies. Ensure design cohesion across our systems by leveraging Figma and other design tools. Maintain performance and cross-browser compatibility of our platform through rigorous testing and optimization. Develop “best-in-class” engineering for our applications and services by ensuring that components are well-defined, modularized, secure, reliable, diagnosable, actively monitored and reusable Promote and adhere to modern software engineering practices through design reviews and code evaluations. Lead the strategy and implementation to enhance integrations across all trading stages, including selecting appropriate technology stacks to support agile development. Requirements Bachelor's in Computer Science, Engineering or related technical fields. 3+ years of professional experience in designing and developing full stack applications. 3+ years technical engineering experience with coding in languages including, but not limited to, Typescript, NextJs, GraphQL, C# or Python. 3+ years demonstrated experience in different software development cycles: design, implementation, deployment, and live site. Proven track record for building and shipping production software. Benefits Competitive salary plus bonus based on individual and company performance. Collaborative, casual, and friendly work environment. PPO Health, dental and vision insurance premiums fully covered for you and your. dependents. Pre-tax commuter benefits. Weekly company meals. Trexquant is an Equal Opportunity Employer

Fairfield County Hedge Fund is seeking a Senior Software Developer to join their Core Development which is responsible for building in-house systems and integrating and customizing third-party applications essential to the firm's operation. They are currently modernizing their proprietary on-premises systems into cloud-native, web-based solutions. This is a great opportunity for a talented backend developer to make a major impact on critical financial software used across the firm. This role Primary Responsibilities: • Build and maintain custom .NET applications including STP trade platform, portfolio management tools, and front-office modules • Drive modernization efforts by contributing to cloud and web transformation initiatives • Integrate and extend third-party platforms like Workday and Salesforce • Collaborate with business and project teams to translate requirements into scalable solutions • Troubleshoot performance issues and implement robust fixes Qualifications/Skills Required: • 7+ years in software development with C# and Web API • Strong SQL experience and relational database design • Experience with DevOps, CI/CD pipelines, Terraform, and Git • Strong academic track record with degree in Computer Science or related field • Excellent problem-solving and communication skills • Self-motivated, quick learner, and demonstrated ability for learning new technology Preferred: • Experience in Azure cloud development • Familiarity with Databricks or Snowflake • Knowledge of messaging technologies such as RabbitMQ, Kafka, or Azure Service Bus • Background in modernizing and transitioning software architecture and technology • Understanding of Workday and/or Salesforce • Front-end development experience using React • Scripting skills in Python and PowerShell • Awareness of accounting and finance fundamentals and work experience in the financial services industry • Proficiency in Excel automation including building functions, macros, and custom add-ins

Job Title: Java Developer Duration: 6+months contract Interview Type: in-person after Telephonic Design and code from specifications, analyzes, evaluates, tests, debugs, documents, and implements complex software apps - Uses coding methods in specific programming languages to initiate or enhance program execution and functionality - Participate in the evaluation, recommendation, and selection of hardware and software solutions - Perform project management of estimating, scheduling, and monitoring tasks - Performs expert-level engineering tasks associated with the analysis, design, and development of computer hardware, firmware, embedded systems, and/or operating systems - Develop, maintain, and report metrics - Interface with different departments within the organization regarding new development. - Manage, administer, and maintain pricing modules - Research/analyze data processing functions, methods and procedures - Monitor program execution for expected performance Requires a bachelor's degree in area of specialty and at least 7 years of experience in the field or in a related area - 7+ years java development - 5+ years front-end integration experience working with development teams on the deployment of web based applications (JSP, HTML, HTML5, Struts framework) Experience in network design, operational support, hands-on implementation. Experience in code reository tools such as Accurev. Experience in Websphere 6.1 and above. Additional InformationAll your information will be kept confidential according to EEO guidelines.

Orion Innovation is a premier, award-winning, global business and technology services firm. Orion delivers game-changing business transformation and product development rooted in digital strategy, experience design, and engineering, with a unique combination of agility, scale, and maturity. We work with a wide range of clients across many industries including financial services, professional services, telecommunications and media, consumer products, automotive, industrial automation, professional sports and entertainment, life sciences, ecommerce, and education. Summary: * Full stack Developer experienced in Angular 10+, TypeScript, .NET Core, C#, Azure SQL * Proficiency working in Angular SPA applications * Experience in Server-side technologies like .Net Core to build RESTful web services * Experience working with cloud technologies and services; Azure preferred * Experience delivering serverless cloud solutions using PAAS model * Experience using Azure App Service, Azure SQL, Service Bus, API Gateway Management, etc. * Experience writing SQL Stored Procedures, Functions and ability to troubleshoot performance issue with SQL queries. * Exposure to Microservices design patterns like pub/sub messaging, synchronous/asynchronous communication, etc. * Experience with distributed version control systems Azure DevOps/Git * Any Azure cloud certification from Microsoft preferred * Experience or exposure to Agile development methodology * Act with integrity, professionalism, and personal responsibility to uphold the firm's respectful and courteous work environment. Orion is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, creed, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, citizenship status, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Candidate Privacy Policy Orion Systems Integrators, LLC and its subsidiaries and its affiliates (collectively, "Orion," "we" or "us") are committed to protecting your privacy. This Candidate Privacy Policy (orioninc.com) ("Notice") explains: * What information we collect during our application and recruitment process and why we collect it; * How we handle that information; and * How to access and update that information. Your use of Orion services is governed by any applicable terms in this notice and our general Privacy Policy.

We are looking for an outstanding Web Developer to be responsible for the coding, innovative design and layout of our website. Web developer responsibilities include building our website from concept all the way to completion from the bottom up, fashioning everything from the home page to site layout and function. Responsibilities Write well designed, testable, efficient code by using best software development practices Create a website layout/user interface by using standard HTML/CSS practices Integrate data from various back-end services and databases Gather and refine specifications and requirements based on technical needs Create and maintain software documentation Be responsible for maintaining, expanding, and scaling our site Stay plugged into emerging technologies/industry trends and apply them into operations and activities Cooperate with web designers to match visual design intent Requirements Proven working experience in web programming Top-notch programming skills and in-depth knowledge of modern HTML/CSS Familiarity with at least one of the following programming languages: PHP, ASP.NET, Javascript or Ruby on Rails A solid understanding of how web applications work including security, session management, and best development practices Adequate knowledge of relational database systems, Object Oriented Programming and web application development Hands-on experience with network diagnostics, network analytics tools Basic knowledge of Search Engine Optimization process Aggressive problem diagnosis and creative problem-solving skills Strong organizational skills to juggle multiple tasks within the constraints of timelines and budgets with business acumen Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques. BS in computer science or a related field

FlexTrade Systems is a provider of customized multi-asset execution and order management trading solutions for buy- and sell-side financial institutions. Through deep client partnerships with some of the world's largest, most complex and demanding capital markets firms, we develop the flexible tools, technology and innovation that deliver our clients a competitive edge. Our globally distributed engineering teams focus on adaptable technology and open architecture to develop highly sophisticated trading solutions that can automate and scale with your business strategies. At FlexTrade, we hold our values close to heart, with pride and gratitude, as they guide us in everything that we do. We are dedicated to giving our clients a competitive edge, taking ownership of our responsibilities, being flexible to adapt to ever changing environment and technology, bringing integrity to ever interaction and we continue to improve, grow together and collaborate as one team. All of these while having Fun truly makes FlexTrade a wonderful place to work. JOB SUMMARY: FlexTrade is looking for a Front-End-C# WPF, MVVM developer. We design, develop and maintain the most powerful trading tools on the market. Our target users are institutional traders in all asset classes and their front-end experience is critical to their market access. Responsibilities: * Work collaboratively on multiple teams to develop concepts, prototypes and front-end production code. * Produce high quality, production-ready code working with other team members as a C# developer. * Understand and use existing styles and design patterns as well as develop new, extensible controls including maintaining multiple Style Dictionaries and themes. * Design and develop new components using current best practices blending code and design. * Create interactive prototypes to proof and test new interactions, visuals, and animations. * Iterate on prototype and product quality by testing for and fixing issues.

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Front End Developer - Agentic AI Platform About Mastercard Mastercard is a global technology company in the payments industry, connecting billions of consumers, financial institutions, merchants, governments, and businesses worldwide. We are driving the future of commerce by enabling secure, simple, and smart transactions. Artificial Intelligence is at the core of our strategy to make Mastercard stronger and commerce safer, smarter and more personal. Overview At Mastercard, we're building an Agentic AI platform to transform how our products and services deliver intelligent, personalized experiences. We are looking for a skilled Lead Front-End Developer to create intuitive, accessible, and engaging user interfaces that connect users seamlessly to AI-powered capabilities. You'll be responsible for turning design concepts into interactive, production-ready experiences that align with Mastercard's design standards and deliver exceptional usability. As a Lead Front-End Developer, you will design, develop, and optimize the platform's user-facing components. You will work closely with UX designers, backend engineers, and AI engineers to ensure the platform's interface is both visually appealing and functionally robust, following Mastercard's brand and design guidelines. Key Responsibilities * Front End Development - Build and enhance responsive, user-friendly interfaces for the Agentic AI platform using modern front-end frameworks (e.g., React, Angular, or Vue.js). * Design System Alignment - Implement Mastercard's design guidelines, ensuring brand consistency, accessibility, and usability across the platform. * Integration - Connect front-end interfaces to backend services and APIs, ensuring efficient data flow and dynamic interactions. * Performance Optimization - Ensure fast load times, smooth interactions, and scalable design for a variety of devices and browsers. * Testing & Quality Assurance - Write unit and integration tests and participate in code reviews to maintain high-quality standards. * Continuous Improvement - Stay up to date with emerging front-end technologies and best practices to enhance platform capabilities. All About You: * Strong proficiency in HTML5, CSS3, JavaScript/TypeScript, and one or more modern front-end frameworks (React preferred). * Experience implementing responsive and accessible web applications (WCAG compliance). * Familiarity with RESTful APIs and integrating front-end with backend services. * Understanding of UI/UX principles and ability to collaborate effectively with designers. * Knowledge of version control tools (e.g., Git) and CI/CD workflows. * Experience working with design systems or component libraries. * Passion for delivering clean, maintainable, and scalable code. Why Join Us? At Mastercard, you'll help shape the future of AI in global commerce-solving complex problems at scale, enabling financial inclusion, and ensuring the security and trust that define our brand. #AI2 Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: * Abide by Mastercard's security policies and practices; * Ensure the confidentiality and integrity of the information being accessed; * Report any suspected information security violation or breach, and * Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations. Pay Ranges Arlington, Virginia: $150,000 - $254,000 USD Austin, Texas: $130,000 - $221,000 USD Boston, Massachusetts: $150,000 - $254,000 USD Purchase, New York: $150,000 - $254,000 USD Seattle, Washington: $150,000 - $254,000 USD

My Client is headquartered in Greenwich, Connecticut and has over 1,200 employees in its offices in the USA, Switzerland, Canada, Hong Kong, UK, Australia, Hungary, Russia, Japan, India, China and Estonia. My Client is regulated by the SEC, FINRA, NYSE, FCA and other regulatory agencies around the world. Job Description 1. Design, develop and maintain responsive web applications for client's web-based account registration, account maintenance, tax, and compliance systems. 2. Typical projects will be focused on web client/web server development and include middleware and backend integration. 3. The majority of development will be using Java and Java Script with some exposure to PL/SQL, Python, Unix shell scripts and other general-purpose languages and tools. Qualifications 1. BS/MS Computer Science, Engineering, Mathematics 2. Strong knowledge of programming concepts and algorithms 3. Strong knowledge of Java or similar general purpose OO language. 4. Experience with browser markup and scripting (JScript, HTML5) 5. Experience with database backed web applications. 6. Experience with concurrency 7. Prior experience (including college projects) with interactive Web applications. 8. Familiar with web applications, concepts, and tools Additional Information All your information will be kept confidential according to EEO guidelines.

TFA Staffing Co.is a full service professional staffing agency.We specialize in the High Technology profession with talent in many different areas. A faster pace - The average professional at TFA Staffing completes 8 to 12 engagements in a year across numerous areas of practice and client industries. Large Enterprise Clients: Our consultants work on critical projects for some of the world's largest companies. We have a diverse set of clients with an emphasis in Professional and Executive Level, Financial Services, Information Technology, Health Care, Sales, Engineering, Industrial and Skilled Labor. We offer candidates complete confidentiality in their search and provide employers with simple, targeted searches from a database of qualified candidates through partnerships with afilliate companies. Job Description Job ID: 1919-014 Green card or citizen only No relocation Firm offers software and software-enabled services for the financial services industry including Institutional Asset Managers, Hedge Funds, and Insurance Firms. Description: Candidate will become part of the development team that supports and enhances the Web portals that delivers services and product for our client base. Responsibilites New Development Maintenance programming and new development If you would like to discuss this position please feel free to contact " in strictest confidence: Qualifications Green card or citizen BS Strong HTML/CSS/JavaScript/AJAX and JQuery Experience 2+ years of ASP.NET, C# Experience and MVC MS SQL or other Relational Database Experience Additional Information Please send resume/CV in word doc format ASAP to ~ [email protected] (P) ************

Trexquant is a growing systematic fund at the forefront of quantitative finance, with a core team of highly accomplished researchers and engineers. We are in the process of optimizing and reimagining our quant platform to keep pace with our expanding trading operations. To support our rapid growth, we are seeking a technically adept Senior Full Stack Software Engineer to reimagine and help build the next-generation of trading platforms. As a Senior Full Stack Developer at Trexquant, you will join a team that prides itself in performing at the intersection of design and technology. You will work alongside leading quants, researchers, strategists, and portfolio managers to develop and optimize a cutting-edge system. With your technical expertise, you will manage project priorities, deadlines, and deliverables to support our growing company. You will design, develop, test, deploy, maintain, and enhance software solutions to align with our team's core priorities. If you're excited by the opportunity to build from the ground up, push technical boundaries, and drive rapid progress, we want to hear from you. Responsibilities Adopt an entrepreneurial mindset, excelling in a dynamic environment while turning ideas into actionable results. Design and develop production-ready full-stack web applications using modern web frameworks and technologies. Ensure design cohesion across our systems by leveraging Figma and other design tools. Maintain performance and cross-browser compatibility of our platform through rigorous testing and optimization. Develop “best-in-class” engineering for our applications and services by ensuring that components are well-defined, modularized, secure, reliable, diagnosable, actively monitored and reusable Promote and adhere to modern software engineering practices through design reviews and code evaluations. Lead the strategy and implementation to enhance integrations across all trading stages, including selecting appropriate technology stacks to support agile development. Requirements Bachelor's in Computer Science, Engineering or related technical fields. 3+ years of professional experience in designing and developing full stack applications. 3+ years technical engineering experience with coding in languages including, but not limited to, Typescript, NextJs, GraphQL, C# or Python. 3+ years demonstrated experience in different software development cycles: design, implementation, deployment, and live site. Proven track record for building and shipping production software. Benefits Competitive salary plus bonus based on individual and company performance. Collaborative, casual, and friendly work environment. PPO Health, dental and vision insurance premiums fully covered for you and your. dependents. Pre-tax commuter benefits. Weekly company meals. Trexquant is an Equal Opportunity Employer