Staff Software Engineer

About The Company
Relativity is a diverse workplace with different skills and life experiences—and we love and celebrate those differences. We believe that employees are happiest when they're empowered to be their full, authentic selves, regardless of how you identify.

About The Role
Seeking a Staff Frontend Engineer to lead frontend architecture, drive innovation, and mentor in a cloud-native environment using React, TypeScript, and Micro Frontend strategies.

We are seeking a Staff Frontend Engineer to join the Engineering Platform team at Relativity. This role is ideal for a deeply technical frontend leader who thrives on solving architectural challenges, driving frontend innovation at scale, and influencing engineering best practices across product teams.

As a Staff Engineer, you will play a key role in defining and evolving our frontend architecture, shaping our Micro Frontend strategy, and enabling consistency, reusability, and scalability through platform-owned UI frameworks and shared infrastructure. Your impact will span teams, and you'll collaborate with architecture, UX, product, and backend leads to align initiatives to both developer and business needs.

This is a high-impact role for someone who combines expert frontend engineering capabilities with strategic thinking and mentorship in a fast-paced, cloud-native environment.

Key Responsibilities

• Architect, design, and implement scalable, performant frontend infrastructure and shared UI components using React, TypeScript, and PrimeReact.
• Lead the definition and adoption of Micro Frontend architecture to support modular, independently deployable UI features across product teams.
• Drive consistency and accessibility by contributing to and governing the evolution of the company-wide design system and component libraries.
• Optimize performance through lazy loading, code splitting, caching, CDN strategies, and advanced rendering techniques.
• Collaborate cross-functionally with UX, backend, DevOps, and platform teams to build cohesive, seamless user experiences and shared workflows.
• Establish and enforce frontend best practices including testing, observability, accessibility (WCAG), and maintainability.
• Mentor engineers across teams, contribute to architecture reviews, and champion technical excellence across the frontend discipline.
• Support innovation by exploring AI-enhanced UI/UX capabilities, including intelligent behaviors, personalization, and generative interfaces.
• Influence long-term technical strategy and guide key architectural decisions with platform-wide impact.

Requirements

• 8+ years of professional experience in frontend development
• Proven track record of leading complex architectural efforts
• Deep expertise in JavaScript (ES6+), TypeScript, and modern frontend frameworks, especially React
• Strong knowledge of HTML5, modern CSS methodologies, and preprocessors like SASS/LESS
• In-depth experience with state management and building modular, component-based architectures
• Proven experience in Micro Frontend design, component federation, and integration patterns at scale
• Proficiency with RESTful APIs, GraphQL, async/await, Promises, and mock-based development
• Strong testing mindset and hands-on experience with unit, integration, and end-to-end testing frameworks
• Strong background in performance optimization, frontend caching strategies, asset delivery via CDN, and responsive design
• Deep understanding of web accessibility (WCAG) standards and techniques
• Familiarity with CI/CD practices, component versioning, and automated testing in a modern DevOps environment
• Experience delivering production SaaS solutions on Azure or other cloud platforms
• Familiarity with AI-enhanced UIs
• Background working with backend technologies (.NET, , Python)
• Experience with Linux environments, containerization (Docker, Kubernetes), and microservices integration
• Understanding of NoSQL technologies and real-time data streams
• Strong UI/UX sensibility and ability to bridge technical execution with design intent
• Experience with AI/ML-powered frontend capabilities

Required Skills

• React
• TypeScript
• PrimeReact
• JavaScript (ES6+)
• HTML5
• CSS methodologies (e.g.
• BEM
• CSS-in-JS)
• SASS/LESS
• Redux
• Recoil
• Zustand
• RESTful APIs
• GraphQL
• async/await
• Promises
• Jest
• Cypress
• Playwright
• CDN strategies
• WCAG standards
• CI/CD practices
• component versioning
• automated testing
• Azure
• AI-enhanced UIs
• .NET
• Python
• Linux environments
• Docker
• Kubernetes
• NoSQL technologies (MongoDB
• Redis
• Elasticsearch)
• real-time data streams
• UI/UX sensibility
• AI/ML-powered frontend capabilities

Benefits

• Comprehensive health, dental, and vision plans
• Parental leave for primary and secondary caregivers
• Flexible work arrangements
• Two, week-long company breaks per year
• Unlimited time off
• Long-term incentive program
• Training investment program

Salary:
PLN

Equity:
This position is eligible for total compensation which includes a competitive base salary, an annual performance bonus, and long-term incentives.