Senior React Engineer with WebGL or WebGPU experience

Remote

Colombia India Ukraine

This role focuses on building high-performance, data-dense trading and analytics interfaces for a multi-tenant B2C SaaS platform. You will work on advanced charting, real-time data flows, and GPU-accelerated visualizations, owning frontend architecture and delivery for interfaces where responsiveness, reliability, and rendering performance are critical.

Required for this role

7+ years of professional frontend engineering experience, including ownership of complex, production-grade web applications

Expert-level knowledge of JavaScript, TypeScript, and React, including modern patterns, hooks, state management, and performance optimization

Strong experience with Next.js or a similar modern frontend framework

Hands-on experience building advanced charting or chart-building experiences, including custom indicators, overlays, time-series rendering, large datasets, or real-time updates

Proven experience with WebGL, WebGPU, or similar GPU-accelerated rendering for interactive 2D/3D visualization

Understanding of graphics-related concepts such as shaders, buffers, rendering loops, and browser-based rendering pipelines

Strong knowledge of browser performance, including compositing, repaint/reflow, memory management, frame budgeting, and techniques for smooth interactions

Experience integrating and optimizing real-time data flows using WebSockets or streaming APIs

Strong testing and quality discipline, including unit, integration, or e2e testing, CI/CD familiarity, and production debugging

Nice to have

Experience with trading, market data interfaces, or other data-dense analytical products

Familiarity with time-series data modeling, canvas-based rendering, or third-party charting SDKs such as TradingView

Experience with observability tools such as Sentry, feature flags, experimentation, or analytics integration patterns

Your responsibilities

Lead the design and implementation of high-performance frontend features for trader-facing dashboards

Build and evolve reusable visualization components, including rendering primitives, scales, axes, overlays, indicators, and interaction layers

Own performance engineering for critical UI paths through profiling, bottleneck analysis, CPU/GPU optimization, memory improvements, and smooth pan/zoom/scroll interactions

Integrate real-time data delivery into the UI and ensure correctness under latency, reconnections, and high-frequency update scenarios

Partner with backend engineers to align API contracts and data shapes for visualization needs

Define and maintain frontend architecture standards for component design, state management, error handling, rendering strategy, and code organization

Drive quality through automated testing, careful release practices, and production monitoring

Collaborate with product and design teams to refine interaction models for complex workflows such as chart tooling, drawing, comparisons, filters, and layouts

What you get

Your time off

18 paid vacation days and 10 paid sick days annually

10 Ukrainian public holidays

Maternity and paternity leaves

Marriage and Parenthood Package

Additional leave for major life events

Sabbatical leave opportunities

Learning & growth

Sombra University workshops and internal learning programs

Tech Communities and knowledge sharing sessions

Language courses and workshops

Mentorship opportunities

Health & well-being

Sports compensation or health insurance coverage

Participation in races and marathons

Corporate doctor (telemedicine)

Well-being initiatives and workshops

And even more

Company-provided technical equipment

PE administration and tax support

Internal referral program

IT Club loyalty program

Company events and volunteering initiatives

Before you apply

Our recruitment team will carefully review your profile, and if we see a good match with the role, we’ll reach out to you shortly.

If you don’t hear from us within 5 business days, it means we’ve decided to continue the process with other candidates for this position. Thanks for understanding.

Kateryna Kyryia

Recruitment Partner