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Lazer Technologies

Senior Full Stack Engineer - Crypto Trading (6 month contract to hire)

Remote

United kingdom

Senior

Freelance

28-01-2026

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Skills

Communication Go Rust Data Visualization Risk Management Shopify Attention to detail Architecture Autonomy Organization Azure react AWS Software Development GCP blockchain

Job Specifications

Lazer is a world-class digital product studio composed of 180+ senior engineers and designers with backgrounds from companies like Apple, Google, Coinbase, and more. With our product experience, we have designed, engineered, and grown products from $0 to $200M in revenue.

Clients seek out our help because we have the talent to deeply understand their needs and provide industry, technical, or product insights that are uniquely valuable to their efforts. Our clients range from early-stage startups and venture studios to recognizable retail brands and exciting enterprises. Some of our notable clients include Google, Shopify, Coinbase, Alchemy, Hinge, OVO, Polymarket, and more.

We are a remote-first organization headquartered in Toronto, Ontario, with employees worldwide. We believe in providing the best experience possible for all Lazerites by fostering a strong community through regular events, company vacations, competitive compensation, unlimited PTO, and more!

Join Lazer and help us solve problems and build the next generation of products!

Who You Are

6+ years of experience in both backend and frontend software development, with significant experience building trading platforms (DEX, CEX, HFT, or similar high-performance trading systems)
Expert-level proficiency with React and modern frontend state management patterns; experience with the TanStack ecosystem is a strong plus
Strong experience with high-performance data visualization and real-time UI components for building dense, data-intensive trading interfaces
Solid backend engineering skills with Go or similar systems languages; experience building WebSocket architectures and backend-for-frontend patterns
Deep understanding of real-time data streaming, order management systems, and trading UI/UX patterns
Experience with component library development and working within established design systems; strong eye for design and attention to detail in high-density interfaces
Proven consulting/contracting experience or startup/agency background with strong client management and communication skills
Self-sufficient professional who thrives with autonomy, moves fast with lean processes, and maintains high quality standards
Deep expertise with major cloud providers (GCP, AWS, Azure) for deploying and scaling high-performance applications
Excellent communication skills for explaining technical tradeoffs to both technical and non-technical stakeholders

What You'll Do

Embed with client teams to advise and consult founders on building sophisticated trading platforms, order management systems, and real-time trading interfaces
Architect and develop high-performance trading UIs handling real-time data updates and complex user interactions at scale
Build and maintain backend proxy layers and APIs to support demanding trading application requirements
Design and implement component libraries on top of internal design systems, creating reusable patterns for dense trading interfaces
Integrate with existing APIs, data distribution layers, and trading infrastructure while maintaining low-latency performance requirements
Uplevel client engineering teams through mentorship, improved architecture, and enhanced engineering processes
Lead technical strategy discussions with clients, managing project timelines and expectations for complex trading platform builds
Help grow our team's technical capabilities by experimenting with cutting-edge tools and contributing back to the open source ecosystem

Nice To Have

The following would be bonus experience to have, though highlight any additional experience or skills you may have. We like working with people with varied backgrounds and experiences.

Experience with blockchain protocols and web3 development (EVM, Solana, or other ecosystems)
Background in quantitative finance, algorithmic trading, or market microstructure
Experience with real-time communication protocols or trading-specific standards
Familiarity with order book management, matching engines, or risk management systems
Experience with Rust or other high-performance backend languages
Knowledge of charting and data visualization libraries
Experience with mobile development for trading applications
Contributions to open source trading tools or infrastructure

Why Work With Us

Accelerate Your Growth: Work across multiple industries and cutting-edge projects with a team that ships fast.
Maximum Impact: Shape the future of the tech industry by helping ambitious projects reach their potential.
True Ownership: Everyone ships code and has real autonomy with minimal meetings.
Continuous Learning: Be part of a team of senior engineers and designers who love learning and knowledge sharing.

Why This Might Not Be For You

You Resist Modern Tools: We leverage AI and cutting-edge technology to build rapidly and focus our energy on solving the most complex, high-impact challenges for our clients.
You Crave High Structure: We thrive in an autonomous, fast-moving environment, which

About the Company

Lazer is a digital product studio designed to help successful companies bring ideas to market faster and more successfully. With a team of product engineers with backgrounds from Facebook, Google, Instagram, Apple, Y Combinator, and more, we've helped some of the world's most successful companies build products and services that are attractive, thoughtful, and enjoyable to use. Our 350+ clients include Google, Coinbase, Shopify, Uniswap, Census, Ohalo, Alo Yoga, and more. Know more