uvation

Senior Frontend Developer / Tech Lead

Romania full-time Senior Salary not listed
full-time Senior level Technology & IT Curated
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About the role

Job Overview

React, Next.js, architecture and interactive graphics | 5 to 8 years

This role owns technical direction for complex front-end features and supports the team through design decisions, reviews and mentoring. The successful candidate should combine strong React and Next.js engineering with architecture, performance and integration expertise.

Must Have Skills

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

Ability to design scalable front-end architecture with a single source of truth and clear boundaries between UI, business logic and data access.

Experience designing reusable component libraries and governing consistent component APIs.

Deep experience with Zustand, Redux Toolkit or an equivalent state-management approach, including efficient selector design.

Strong HTML, CSS and SCSS skills, including responsive design, accessibility and style isolation.

Experience implementing interfaces from detailed visual specifications and using design systems such as IBM Carbon or Material UI.

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

Experience defining or validating API contracts with backend teams and applying contract-testing principles.

Demonstrated performance expertise, including profiling, memoisation, code splitting, lazy loading and bundle analysis.

Awareness of frame rate, GPU utilisation and memory behaviour on graphics-heavy screens.

Hands-on experience with WebGL, three.js or React Three Fiber, including scene and camera control, pointer picking and animation timelines.

Experience managing events and interaction across layered UI and graphics surfaces.

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

Ability to build components that integrate into an existing host application through clean props and callbacks, isolated styles and no unintended global side effects.

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

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

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

• Experience with Azure DevOps

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

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

Good to Have Skills

Experience with advanced animation libraries such as GSAP or Framer Motion.

Experience with charting and data-visualisation libraries.

Experience with visual regression testing or end-to-end testing using Playwright

Experience with internationalisation and localisation at scale.

Familiarity with micro-frontends, monorepos or design-system governance.

Experience with production observability, release support and incident investigation.

Experience leading technical discovery or proof-of-concept work for complex interactions.

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT API integration CSS HTML Javascript Senior level full-time

Likely questions

  1. Tell us about work you have done that is close to the Senior Frontend Developer / Tech Lead role.
  2. How would you approach your first 30 days at uvation?
  3. Which of API integration, CSS and HTML have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, CSS and HTML.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Frontend Developer / Tech Lead role because I can bring practical experience in API integration, CSS and HTML, learn the team quickly, and contribute to the outcomes uvation needs from this hire.

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