Senior Frontend Developer (SDE III) – React Engineering
About BeeHyv
BeeHyv is a boutique software engineering firm helping enterprises and product companies modernize systems, build cloud-native platforms, and adopt AI/GenAI solutions. We bring the agility and craftsmanship of a high-end engineering partner, trusted by both startups and global
organizations.
The Role
We are looking for a Senior Frontend Developer (SDE III) who can combine strong React expertise with architectural thinking and leadership in execution. You will own large features end-to-end — from design to delivery — and influence the frontend architecture, tooling, and performance optimization strategy.
This is a senior individual contributor role with opportunities to mentor engineers, improve code quality and shape BeeHyv’s frontend engineering best practices.
What You’ll Do
- Architect, design, and develop React-based web applications at scale.
- Drive initiatives for frontend modularization, performance optimization, and design system standardization.
- Collaborate with backend engineers to define data contracts and optimize API integrations.
- Lead code reviews and mentor SDE I / SDE II developers on design patterns and frontend principles.
- Contribute to architectural decisions — SSR/SSG strategies, caching, and micro-frontend integration.
- Set up and enhance tooling pipelines for linting, type safety, testing, and deployment.
- Define and monitor frontend observability metrics (performance, stability, accessibility).
- Partner with design teams to evolve component libraries and ensure brand consistency.
- Stay up-to-date with frontend ecosystem trends and recommend adoption of relevant innovations.
What We’re Looking For
- 6–10 years of frontend development experience with 3+ years in React.
- Deep understanding of React internals, reconciliation, and rendering performance.
- Strong proficiency in TypeScript, React hooks, and modern state management patterns.
- Experience in SSR frameworks (Next.js) and frontend build tools (Vite, Webpack).
- Strong grasp of frontend architecture — modularization, monorepos, CI/CD, and versioning.
- Experience leading large-scale UI refactors or design system rollouts.
- Hands-on experience with testing frameworks (Jest, Cypress, Playwright).
- Understanding of web performance optimization (Core Web Vitals, Lighthouse audits).
- Exposure to accessibility (a11y) and compliance standards.
- Excellent debugging and profiling skills for production-grade apps.
Nice to Have
- Familiarity with micro-frontends, Nx/Turborepo, or design token frameworks.
- Experience integrating feature flagging or A/B testing frameworks.
- Exposure to observability tools like Sentry, Datadog, or LogRocket.
- Experience using AI-assisted development for productivity and code quality.
- Experience mentoring teams in frontend engineering maturity models.
Why Join Us
- Lead the development of high-performance, scalable frontend applications.
- Influence the frontend architecture roadmap and engineering direction.
- Work with top-tier engineers across multiple disciplines — backend, DevOps, AI, and data.
- Build with modern React tooling and industry best practices.
- Thrive in a fast-paced, engineering-first culture with continuous learning and ownership opportunities.
- Opportunity to shape BeeHyv’s frontend excellence across projects and products.