Frontend Developer
Senior Frontend Developer driving agentic workflow orchestration with OutSystems, building high‑performance, accessible web interfaces that minimize cognitive load. Expertise in JavaScript/TypeScript, React, HTML5, CSS3, and accessibility best practices.
There are NO limits to your career: come shape the future and be part of a truly unique global culture at OutSystems !
Senior Front-End Developer | Professional Services
As a Senior Front-End Developer, you will be at the forefront of Agentic Workflow Orchestration. In this role, you aren't just building interfaces; you are designing the collaborative space where humans and AI agents interact. Your mission is to leverage OutSystems to build high-performance, accessible, and low-cognitive-load experiences that solve complex business problems.
The Mission: Agentic Excellence
Your work will focus on the North Star of Professional Services: Reducing User Cognitive Load. You’ll build UI patterns that make autonomous agent actions transparent, trustworthy, and seamless for the end-user.
Core Responsibilities
Live Style Guide (LSG) Engineering: Build and maintain scalable LSGs and UI patterns. You won't just deliver a static library; you will build the "rules of engagement" that allow AI agents to correctly assemble customer-branded interfaces.
Agentic Orchestration: Act as the supervisor of AI agents. You will prompt, audit, and orchestrate agents to generate code, troubleshoot UI bugs, and automate repetitive front-end tasks, ensuring the output delivers value to our customers.
Prompt Engineering for UI: Develop and refine the system prompts used to generate OutSystems logic and UI. You are responsible for ensuring the AI understands the "governance" of the customer’s style guide.
Technical Troubleshooting: Solve the "impossible" front-end bugs. Whether it’s a CSS race condition in a legacy app or a non-deterministic error in a new agentic workflow, you are the final point of escalation.
Customer Workshops & Coaching: Lead workshops on Front-End best practices and Accessibility (WCAG). Transition customer teams from manual "pixel-pushing" to an "Orchestrator" mindset.
Work directly with customers to troubleshoot challenging front-end issues and refine their front-end strategy.
Mentor junior developers in the transition from traditional development to AI-assisted coding.
What We Look For
Advanced knowledge of HTML, CSS, and JavaScript.
Proven experience developing high-quality applications using the OutSystems platform ( OutSystems UI & Mobile UI).
Ability to optimize applications for speed and search engine visibility.
Experience implementing and a strong commitment to accessibility (WCAG) and creating tools that work for everyone.
AI code fluency: Ability to read, debug, and optimize code generated by LLMs. You understand the "hallucination" patterns of AI-generated front-ends.
Advanced prompt engineering: Experience structuring multi-step prompts to achieve specific, high-quality technical outcomes.
Systemic thinking: You don't just fix a bug; you fix the prompt or the pattern s
Posted June 27, 2026