> Markdown version of [/jobs/ext/2386209-web-developer-client-portal](https://www.wearedevelopers.com/jobs/ext/2386209-web-developer-client-portal). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Web Developer (Client Portal) - **Company:** Exegy, Inc - **Location:** St. Louis, MO, United States - **Contract:** Permanent contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), Artificial Intelligence, HTML5, Browser Compatibility, Cascading Style Sheets (CSS), Code Review, Continuous Integration, Cross-Origin Resource Sharing (Ajax Programming), Relational Databases, Document Object Model, Python (Programming Language), Node.Js, OAuth, Performance Tuning, Scrum Methodology, JSON Web Token, Responsive Web Design, Web Application Security, TypeScript, Web Applications, Web Pages, Web Services, Web Standards, ReactJS, Flask (Web Framework), Delivery Pipeline, Git, Fastapi, Syntactically Awesome Style Sheets (SASS), Webpack, Front End Software Development, Restful APIs - **Published:** August 5, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=3ad7c52c3535e22d ## About the Role * Professional experience building, shipping, and supporting production web s * Proficiency in JavaScript or TypeScript, with hands-on experience using modern front-end frameworks (React strongly preferred) * Experience developing and consuming RESTful APIs and connecting backend web services * Experience with Python (FastAPI/Flask) or Node.js for server-side logic * Solid understanding of core web standards (HTML5, CSS3/SASS, DOM manipulation, responsive design) * Familiarity with relational databases, Git, automated testing frameworks, and modern web deployment pipelines * Strong troubleshooting skills and an eager, collaborative approach to problem-solving * Demonstrated ownership of complex technical projects or production s * Strong communication skills and the ability to work across technical and nontechnical teams, * Experience with React, TypeScript, and Vite build tooling * Experience with Python and FastAPI * Experience developing B2B SaaS interfaces, enterprise portals, or client dashboards * Familiarity with web security (OAuth, JWT, CORS) and performance optimization * Background or interest in fintech, capital markets, or market data platforms * Experience integrating AI-enabled services or workflows into business s * Experience working within globally distributed engineering teams ## Description Exegy is seeking a Web Developer to join our engineering team in building, enhancing, and maintaining our client portal and web-based platforms., * Design, build, and maintain responsive, client-facing portal features using modern JavaScript/TypeScript and front-end frameworks * Develop backend services, RESTful API integrations, and data connections using Python or Node.js * Turn wireframes, user stories, and product specifications into accessible, high-performing web pages and interface components * Write clean, testable code and expand automated unit, integration, and end-to-end (E2E) testing suites * Participate in active code reviews, sprint planning, and front-end design discussions * Diagnose and resolve client-side UI bugs, cross-browser issues, API integration failures, and performance bottlenecks * Support CI/CD deployment workflows and maintain clear technical documentation for web components and workflows * Partner cross-functionally to refine requirements and continuously optimize user experience ## Related Videos - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Delay the AI Overlords: How OAuth and OpenFGA Can Keep Your AI Agents from Going Rogue](https://www.wearedevelopers.com/videos/1637-delay-the-ai-overlords-how-oauth-and-openfga-can-keep-your-ai-agents-from-going-rogue) - [Can SVG be fast? Rendering a scatter chart with over 10k points](https://www.wearedevelopers.com/videos/100299-can-svg-be-fast-rendering-a-scatter-chart-with-over-10k-points) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front)