Senior Front End Engineer
stellartech· Platform Engineering and Technology Department
About this role
StellarTech is looking for Senior React Developer to join our team and lead the development of high-performance marketing funnels. In this role, you will architect and build custom UI components from scratch — covering 95% of the UI without relying on third-party component libraries — ensuring our funnels are fast, conversion-optimized, and fully tailored to our brand.
What You’ll Do:
- Custom Component Development: Build and maintain a comprehensive internal component library covering 95%+ of the UI surface. Components are built from scratch without third-party libraries (no MUI, Chakra, Ant Design, etc.), with clean APIs and clear documentation. Collaborate with designers to deliver functional, brand-aligned implementations.
- Marketing Funnel Engineering: Architect and develop multi-step marketing funnels, including landing pages, lead capture flows, upsell sequences, and thank-you pages. Implement dynamic content rendering, conditional logic, and form validation. Integrate with marketing platforms via REST APIs and manage funnel state across steps using appropriate storage strategies.
- Payment Integrations: Integrate payment gateways (Stripe, PayPal, or similar) into funnel flows, including secure form handling, webhook processing, and error recovery.
- Performance Optimization: Own Core Web Vitals across all funnel pages targeting Lighthouse scores of 95+. Apply code splitting, lazy loading, tree shaking, and critical CSS. Use React DevTools Profiler and Chrome Performance panel to identify and eliminate redundant re-renders through memo, useMemo, useCallback, and smart component splitting.
What We’re Looking For:
- 5+ years of professional React development experience
- Proven track record building 90%+ custom UI without component libraries
- Understanding of the Critical Rendering Path
- Deep understanding of React reconciliation, the virtual DOM, and rendering behavior
- Experience with state management solutions (Redux Toolkit, Zustand, Jotai) and knowing when to use global vs local state
- Solid understanding of Local Storage, Session Storage, and cookies — including security implications and appropriate use cases within funnel flows
- Hands-on experience with React DevTools Profiler and techniques to prevent redundant re-renders
- Experience integrating payment gateways (Stripe, PayPal, or similar) in production
- Strong command of HTML5, CSS3, and modern TypeScript
Nice to have:
- Experience with Next.js and server-side rendering
- Familiarity with feature flagging tools
- Familiarity with A/B testing and analytics event tracking
Why You'll Love Working With Us:
- Innovative Environment: We're all about trying new things and pushing the envelope in EdTech.
- Totaly remore setup.
- Health: company-provided medical expense compensation.
- AI solutions: АІ subscription and other tools.
- Balance: Flexible paid time off, you get 21 days of annual leave + 10 bank holidays.
- Collaborative Culture: Work alongside passionate professionals who are as driven as you are.
Frequently Asked Questions
Is the salary disclosed for the Senior Front End Engineer position at stellartech?
The salary for this Senior Front End Engineer role at stellartech is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Senior Front End Engineer job at stellartech remote?
Yes, this Senior Front End Engineer position at stellartech is remote, with team members based in Remote. You can work from home or anywhere in the supported regions.
Is the Senior Front End Engineer role at stellartech full-time or part-time?
This is listed as a Contractor position. It is posted as a Senior Front End Engineer role in the Platform Engineering and Technology Department department at stellartech.
Which team or department does the Senior Front End Engineer at stellartech belong to?
This Senior Front End Engineer position is part of the Platform Engineering and Technology Department department at stellartech. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Front End Engineer position at stellartech?
Click the "Apply Now" button on this page. You will be redirected to stellartech's official application portal hosted on bamboohr where you can submit your application directly.
When was the Senior Front End Engineer job at stellartech posted?
This Senior Front End Engineer position at stellartech was posted on Jun 2, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Front End Engineer
stellartech
You'll be redirected to stellartech's official application page on bamboohr.