Lead Software Engineer - Frontend

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Lead Front-End Engineer, Solutions UI/UX

The Role: Setting the Standard for Front-End Architecture

The Lead Front-End Engineer will be the technical leader responsible for defining the front-end architecture, development standards, and UI/UX governance for all ready-made solutions. You will guide the team of Front-End Engineers (experts in modern web technologies, primarily JavaScript) to build reusable, performant, and accessible interfaces that seamlessly visualize and interact with complex AI Agent systems.

Key Responsibilities

1. Front-End Architecture & Governance (Primary Focus)

• Define Standards: Establish and enforce comprehensive front-end engineering standards for code quality, performance optimization, responsiveness, and accessibility (WCAG) across the entire solutions portfolio.
• Component Strategy: Architect a reusable component library and UI structure that maximizes speed and consistency across all templates, leveraging modern JavaScript and web standards.
• Performance Leadership: Own the front-end performance roadmap, implementing advanced techniques to ensure exceptional Core Web Vitals, rapid loading times, and a fluid user experience for all packaged solutions.
• Integration Patterns: Define the client-side integration patterns (e.g., state management, asynchronous communication, data caching) needed for applications to robustly and securely interact with the AI Agent APIs.

2. Technical Leadership & Mentorship

• Hands-On Leadership: Remain actively involved in development, leading the implementation of the most complex UI components and critical architectural pieces.
• Mentorship & Review: Conduct thorough code reviews, provide continuous feedback, and mentor the team of Senior Front-End Engineers on advanced JavaScript, CSS, and architectural best practices.
• Tooling & Workflow: Identify and implement best-in-class front-end tooling, testing frameworks, and workflows to improve team efficiency and code quality.

3. Cross-Functional Collaboration

• Collaborate closely with the Lead AI Engineer to translate agent output (e.g., confidence scores, tool usage, complex data structures) into clear, actionable, and innovative user interfaces.
• Partner with the Director of Solutions to align front-end technical strategy with the overall product roadmap and business goals.

Required Skills & Experience

Technical Expertise (The Must-Haves)

• Front-End Architecture Leadership: 7+ years of experience in front-end development, with 2+ years in a Lead or Principal role defining the architecture and best practices for large-scale, enterprise-level web applications.
• Expert JavaScript & Web Standards: Mastery of modern JavaScript (ES6+), HTML5, and advanced CSS (SASS/LESS/Tailwind). Proven ability to architect complex client-side applications without heavy reliance on specific frameworks.
• Performance Optimization: Deep expertise in front-end performance tuning, browser rendering paths, and leveraging tools to ensure exceptional speed and responsiveness across devices.
• Testing and Quality: Strong experience with front-end testing methodologies (unit, integration, E2E) and integrating them into CI/CD pipelines.

Desirable Expertise (A Strong Plus)

• Low-Code/OutSystems Proficiency: Experience with the OutSystems platform, particularly regarding front-end development using Reactive Web and OutSystems UI. This experience is highly beneficial for rapidly translating designs into deployable low-code assets.
• Design Systems: Experience contributing to or leading the implementation of a comprehensive Design System or component library.
• AI UX Experience: Experience in visualizing complex data or interaction flows related to intelligent or conversational systems (LLMs, chat interfaces).

Leadership & Professional Attributes

• Architectural Vision: Proven ability to define a clear, scalable technical roadmap and effectively communicate it to both technical and executive audiences.
• Team Builder: Demonstrated success in leading, motivating, and upskilling a technical team.
• Focus on Reusability: Strong passion for building modular, documented, and reusable components that accelerate development across multiple projects.

The Longer Story:

OutSystems enables enterprise teams to build AI-powered applications and agents that reduce manual work, streamline internal operations, and accelerate impact. A proven low-code foundation combined with agentic AI and AI app generation capabilities empowers teams to move up to 10x faster with the assurance of security, scalability, and governance built in.

As the future becomes agentic, our customers need us now more than ever. AI has opened the door to extraordinary possibilities—but inside the enterprise, things are moving fast and feeling chaotic. Some early adopters are making progress in production, but for many, AI tools are sprawling without governance, data isn’t ready, and talent isn’t there yet. Enterprises are still drowning in application backlogs and struggling with legacy systems. But with the right platform, AI doesn’t have to add to the chaos. It can become the breakthrough that brings clarity—and drives real, enterprise-wide impact. At OutSystems, we’ve built that platform, providing the tools necessary for enterprises to overcome these hurdles.

We are looking for passionate, talented, and motivated people to join us in helping our customers build, deploy, and scale apps and agents—fast, helping them accelerate innovation while enabling secure, governed human-AI collaboration.

OutSystems is a truly global company, with more than 850,000 developer community members, 1,700 employees, more than 500 partners, and thousands of active customers in over 75 countries and across 21 industries. Founded in 2001, OutSystems has offices in the United States, United Kingdom, the Netherlands, Portugal, Germany, the UAE, Japan, Hong Kong, Malaysia, Australia, India, and Singapore, and of course has a thriving, worldwide community of remote employees.

Amongst our customers are some of the world's most recognizable brands across diverse industries—brands like Toyota, Heineken, Bosch, KeyBank, and UCLA. These customers are the reason we have a 4.6 star rating on G2. Their success is ours, and their stories demonstrate tangible ROI and transformational impact. We are a 9x Gartner Magic Quadrant Leader for Low-Code Application Platforms and a multi-year leader in the Forrester Wave. We’re recognized not just as leaders but as visionaries with a strong ability to execute, now extending our leadership into the AI and agentic application development arena.

Working at OutSystems

Our goal is to ensure that OutSystems is a place for bright, happy, and motivated people who share a common purpose and take pride in doing excellent work to pursue our vision of providing the AI-powered low-code development platform enterprise leaders trust to build, secure, and evolve their business applications, agents, and core systems. Our culture is focused on our core values of trust, customer success, innovation, and alignment. Our team members operate with transparency, integrity, and accountability, define success through the lens of the outcomes we deliver for our customers, push the boundaries with excellence, and work together toward our shared vision to deliver on what matters most.

What do we have to offer you?

• A company that is always growing, changing, and innovating. We challenge each other to innovate in our products, in our team, and how we use our own technology. And we give our teams space to be proactive and creative.
• Real career opportunities. We care about growth and development. Yes, vertical career progression is a possibility, but it's not the only one. From lateral moves and joining different teams to mastering specialized skills, we support your growth no matter what your goals are.
• Work colleagues that are as smart, hard-working, and driven as you. We act as one global OutSystems team, taking ownership and working together toward a shared vision.
• Disrupting the status quo is in our DNA. In fact, it’s why our company exists.
• We ask “why” a lot. It helps us connect our individual work to the bigger picture and sometimes even uncover a better way.

Are you ready for the next step in your career? Then we’d love to hear from you!

OutSystems nurtures an inclusive culture of diversity, where everyone feels empowered to be their authentic self and perform at their best. A company that embraces the creativity and innovation that comes through diverse perspectives. We are committed to creating a team that reflects society through inclusive programs and initiatives and are proud to be an equal opportunity employer. All qualified applicants receive equal consideration regardless of race, place of origin, color, age, marital status, religion, sex, sexual orientation, gender expression or identity, protected veteran status, disability status or any other status protected by law.