Senior Frontend Developer – Tech Lead

This is a fully remote position, open to applicants in Latvia.

📋 Description

• Take charge of the technical direction for intricate front-end functionalities.

• Provide support to the team through design decisions, reviews, and mentorship.

• Create advanced front-end features using React and Next.js.

• Design scalable front-end architectures with well-defined boundaries between UI, business logic, and data access.

• Develop and manage reusable component libraries along with consistent component APIs.

• Integrate REST APIs and ensure API contracts are validated with backend teams.

• Profile and optimize interfaces that are graphics-heavy and enhance front-end bundles.

• Implement interactive graphics using technologies such as WebGL, three.js, or React Three Fiber.

• Integrate map SDKs, handling coordinate systems, provider fallbacks, and API tokens.

• Construct isolated components intended for integration into existing host applications.

• Contribute to the testing strategy, CI/CD pipelines, Git workflows, and pull-request reviews.

• Guide team members, decompose tasks, estimate workload, and create technical documentation.

• Utilize front-end security fundamentals effectively.

⛳️ Requirements

• Extensive experience with React, Next.js, TypeScript, and modern hooks-based component design.

• Capability to design scalable front-end architectures with a single source of truth and clear demarcation between UI, business logic, and data access.

• Proven experience in designing reusable component libraries and maintaining consistent component APIs.

• In-depth knowledge of Zustand, Redux Toolkit, or a comparable state-management solution, including proficient selector design.

• Strong skills in HTML, CSS, and SCSS, focusing on responsive design, accessibility, and style isolation.

• Experience in implementing interfaces based on detailed visual specifications and utilizing design systems like IBM Carbon or Material UI.

• Robust REST API integration experience, including typed models, adapters, polling, and defensive handling of missing or inconsistent data.

• Experience in defining or validating API contracts with backend teams and employing contract-testing principles.

• Demonstrated expertise in performance optimization, including profiling, memoization, code splitting, lazy loading, and bundle analysis.

• Awareness of frame rates, GPU utilization, and memory behavior in graphics-intensive applications.

• Practical experience with WebGL, three.js, or React Three Fiber, covering scene and camera control, pointer interactions, and animation timelines.

• Experience in managing events and interactions across layered UI and graphics surfaces.

• Experience in integrating map SDKs, managing coordinate systems, implementing provider fallbacks, and safely handling API tokens.

• Ability to develop components that seamlessly integrate into existing host applications through clean props, callbacks, isolated styles, and no unintended global side effects.

• Strong testing experience with Vitest or Jest and React Testing Library, supported by a practical testing strategy.

• Experience with strict TypeScript, error boundaries, cross-browser testing, and browser DevTools.

• Experience in contributing to CI/CD pipelines, Git workflows, and delivering high-quality pull-request reviews.

• Familiarity with Azure DevOps.

• Proven technical leadership demonstrated through mentoring, task breakdown, estimation, and technical documentation.

• Understanding of front-end security fundamentals, including secure environment configuration, safe logging, and responsible use of third-party dependencies.

• Good to have: experience with advanced animation libraries such as GSAP or Framer Motion.

• Good to have: experience with charting and data-visualization libraries.

• Good to have: experience with visual regression testing or end-to-end testing using Playwright.

• Good to have: experience with internationalization and localization at scale.

• Good to have: familiarity with micro-frontends, monorepos, or design-system governance.

• Good to have: experience with production observability, release support, and incident investigation.

• Good to have: experience leading technical discovery or proof-of-concept work for complex interactions.

🏝️ Benefits

• Competitive salary and performance-based bonuses.

• Flexible working hours and the option for remote work.

• Opportunities for professional development and continuous learning.

• Access to cutting-edge technologies and tools.

• Collaborative and inclusive team environment.