Software Developer - Web Developer

ContextForge is an open-source production-grade gateway, proxy, and registry for Model Context Protocol (MCP) servers and A2A Agents. It federates MCP and REST services, providing unified discovery, auth, rate-limiting, observability, virtual servers, multi-transport protocols, plugins and an Admin UI: https://github.com/IBM/mcp-context-forge

As a Senior Web Developer, you will build the Admin UI using HTMX, Alpine.js, and TypeScript - creating real-time dashboards for MCP gateway operations. You will work on CRUD interfaces, real-time features, federation visualization, and virtual server composition tools. This role is ideal for developers experienced with server-driven UI patterns (HTMX) or willing to learn an alternative to heavy client-side frameworks like React.
Your Role And ResponsibilitiesUI Development
• Build CRUD interfaces: tools, servers, A2A agents, gateways, prompts, resources with RBAC

• Create real-time features: log viewer with filtering, search, export capabilities

• Implement WebSocket streaming for live updates and event monitoring

• Design metrics dashboards: integration with Prometheus, charts, visualizations

• Build responsive layouts: mobile-first design with Tailwind CSS, eventually transitioning to a new stack

• Develop dark mode toggle and theme management
Federation & Virtual Server UI
• Create federation UI: peer gateway status, health checks, tool aggregation visualization

• Build virtual server composition interface: drag-and-drop tool selection, visual builder

• Implement A2A agent configuration UI: agent registration, parameter configuration

• Design connection string exports: code snippets for client configuration

• Create visual representations of complex system state
HTMX & Server-Driven Architecture
• Implement HTMX patterns: server-driven partial updates, out-of-band swaps

• Design hypermedia-driven workflows: progressive enhancement, graceful degradation

• Integrate with FastAPI backend: Jinja2 templates, endpoint coordination

• Optimize for low JavaScript footprint: leverage HTMX for interactivity

• Create reusable HTMX components and patterns
Alpine.js & Interactivity
• Use Alpine.js for lightweight client-side reactivity: modals, dropdowns, accordions

• Implement form validation and client-side state management

• Create interactive components: data tables, filters, search interfaces

• Handle client-side routing and navigation enhancements

• Build component library with Alpine.js directives
Testing & Quality
• Write Playwright UI tests: E2E tests, visual regression testing, accessibility testing

• Implement accessibility standards: WCAG compliance, ARIA labels, keyboard navigation

• Test cross-browser compatibility: Chrome, Firefox, Safari, Edge

• Perform mobile testing and responsive design validation

• Create test fixtures and page objects for maintainable tests

Required education

Bachelor's Degree

Preferred education

Master's Degree

Required technical and professional expertise

Frontend Development (5+ years)
• Few years of frontend development experience with HTML, CSS, and JavaScript/TypeScript

• Strong expertise in semantic HTML5 and modern CSS3 (Flexbox, Grid, animations)

• Proficiency with TypeScript: types, interfaces, generics, tooling

• Experience with CSS frameworks: Tailwind CSS, Bootstrap, or similar utility-first frameworks

• Understanding of responsive design and mobile-first development
HTMX or Server-Driven UI
• Experience with HTMX or willingness to learn server-driven UI patterns

• Understanding of hypermedia concepts and progressive enhancement

• Experience with traditional server-rendered applications (preferred over heavy SPA frameworks)

• Knowledge of partial page updates and out-of-band swaps

• Familiarity with SSR (Server-Side Rendering) patterns
JavaScript & TypeScript
• Strong JavaScript fundamentals: ES6+, async/await, promises, event handling

• TypeScript experience: type definitions, interfaces, generics, tooling

• Experience with vanilla JavaScript or lightweight frameworks (Alpine.js, Stimulus, or similar)

• Understanding of DOM manipulation and browser APIs

• Knowledge of JavaScript module systems: ESM, bundling basics
UI/UX & Design
• Strong sense of UI/UX design principles and usability

• Experience with responsive design and mobile-first approaches

• Knowledge of accessibility standards: WCAG, ARIA, keyboard navigation

• Understanding of color theory, typography, and visual hierarchy

• Ability to translate designs into pixel-perfect implementations
Testing & Quality
• Experience with E2E testing: Playwright, Cypress, Selenium, or similar

• Knowledge of accessibility testing tools and techniques

• Understanding of cross-browser compatibility issues and solutions

• Experience with visual regression testing

• Proficiency with browser DevTools for debugging and performance

Preferred technical and professional experience

Advanced Frontend Skills
• Experience with Jinja2, Django templates, or similar server-side templating engines

• Experience with node.js, Figma, IBM Carbon, React

• Knowledge of WebSocket client implementation and real-time updates

• Understanding of Service Workers and Progressive Web Apps (PWA)

• Experience with frontend build tools: Vite, esbuild, Rollup

• Knowledge of CSS preprocessors: Sass, PostCSS
Real-Time & Interactive Features
• Experience building real-time dashboards and data visualization

• Knowledge of charting libraries: Chart.js, D3.js, Recharts, ApexCharts

• Experience with WebSocket or SSE for live updates

• Understanding of data streaming and efficient rendering

• Experience with virtual scrolling for large datasets
API Integration
• Experience consuming REST APIs from frontend applications

• Knowledge of API authentication: JWT, OAuth2, bearer tokens

• Understanding of error handling and retry logic in frontend

• Experience with API documentation tools: Swagger UI, OpenAPI

• Knowledge of GraphQL clients (Apollo, URQL) is a plus
Security & Best Practices
• Understanding of frontend security: XSS, CSRF, CSP, secure headers

• Knowledge of secure authentication patterns in frontend

• Experience with content security policy and CORS

• Understanding of OWASP Top 10 vulnerabilities relevant to frontend
Development Tools
• Proficiency with version control: Git workflows, pull requests, code reviews

• Experience with linters and formatters: ESLint, Prettier, Stylelint

• Knowledge of CI/CD for frontend: automated testing, build pipelines

• Familiarity with package managers: npm, yarn, pnpm

• Experience with monorepo tools: Turborepo, Nx, or similar

ABOUT BUSINESS UNIT

IBM Software infuses core business operations with intelligence-from machine learning to generative AI-to help make organizations more responsive, productive, and resilient. IBM Software helps clients put AI into action now to create real value with trust, speed, and confidence across digital labor, IT automation, application modernization, security, and sustainability. Critical to this is the ability to make use of all data, because AI is only as good as the data that fuels it. In most organizations data is spread across multiple clouds, on premises, in private datacenters, and at the edge. IBM's AI and data platform scales and accelerates the impact of AI with trusted data, and provides leading capabilities to train, tune and deploy AI across business. IBM's hybrid cloud platform is one of the most comprehensive and consistent approach to development, security, and operations across hybrid environments-a flexible foundation for leveraging data, wherever it resides, to extend AI deep into a business.

YOUR LIFE @ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you'll be able to learn and develop yourself and your career, you'll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.

Are you ready to be an IBMer?

ABOUT IBM

IBM's greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.

Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we're also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business.

At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it's time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

OTHER RELEVANT JOB DETAILS

For additional information about location requirements, please discuss with the recruiter following submission of your application.

Client-provided location(s): Dublin, Ireland

Job ID: IBM-71830

Employment Type: OTHER

Posted: 2025-11-07T18:48:20