Senior Frontend Engineer

Department: Outsourcing Services

Location: São Paulo, Rosario, San José, Belo Horizonte, Guadalajara, Recife, Lima, Buenos Aires, Santiago, Montevideo, Panama City, Bogotá, Córdoba, Medellín

Employment Type: Contract

We are looking for a Senior Frontend Engineer for a project within a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software.

You will be building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, our client unlocks new levels of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of possibility. Some of their customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive.

The Role

Join a dynamic product team, building a platform for Data Scientists and Simulation Engineers to deploy Deep Physics Models. You will be one of a small team of Front-end Engineers, collaborating in a cross-functional team with autonomy to drive implementation decisions. Bring your expertise in building front-end systems, plus familiarity with micro-frontend architectures and Kubernetes. A passion for software engineering, collaboration, and end-to-end ownership is key.

What you will do

• Build & Evolve the Platform: Develop and maintain a frontend that supports complex ML workflows—from 3D visualizations to seamless API integrations

• Optimise User Experience: Ensure our interface is visually appealing and high-performing using advanced caching strategies, performance monitoring, and accessibility best practices

• Drive Innovation: Leverage modern tools and architectures to integrate cutting-edge features such as server-side rendering (SSR) and AI-driven enhancements

• Collaborate & Own: Work autonomously within a small, agile team, contribute ideas and experiment with innovative approaches.

Required experience & skills

• 6+ years of experience in front-end software engineering

• Frameworks & Libraries: React, TypeScript, and state management (Recoil, Redux, MobX)

• Cloud: experience with AWS

• Performance Optimization: Code splitting, lazy loading, and React performance tools

• APIs & Data Handling: REST, Long Polling, WebSocket, GraphQL, caching strategies, and data-heavy API interactions

• UX & UI: Responsive design, design systems, and prototyping (Figma, Excalidraw)

• Testing & Quality: Unit and integration (Jest), E2E testing (Cypress)

• CI/CD & Developer Tooling: NX, GitHub Actions, monorepos, pipelines, and micro-frontend architectures

• Specific Technologies: Plotly, Echart, VTK, Three.js, WebGL, WebGPU, and WebAssembly

• Experience working in customer-facing or delivery-oriented roles

• Fluent English

Working conditions

• 1-year contract (with possibility for extension)

• Completely Remote

• Salary paid in USD

• PTO

Our values

We are a company that seeks the best for both our employees and clients, reaching beyond expectations in turning dreams into reality. Our way of working is rooted in our core values (Integrity, Excellence, Proactivity, Innovation, and People), with an expectation that our future colleagues will make these their second nature in their everyday work and life. We don’t ask for perfection, but we do appreciate people motivated to better themselves in every conceivable aspect.

About IT Labs

Founded in 2005, IT Labs is an international software tech company, specializing in purpose and process-driven teams for high-performance, innovation, transformation, and efficiency. Our HQ is in Palm Beach Gardens, Florida, and we have teams around the world - the UK, the Netherlands, Brazil, Argentina, Serbia, Croatia, BIH, Montenegro, North Macedonia, and the Middle East. We are constantly growing, and we would love for you to become part of our team!