Fullstack Golang Developer (Senior/Team leader)

Client Overview

Our client is a fast-growing company in the crypto / digital-asset trading space, building a next-generation derivatives (futures) trading platform. The platform serves a broad user base — retail traders, algorithmic traders, and institutional clients — in an environment where latency, correctness, reliability, and user experience are mission-critical.

Position Overview

We are seeking an experienced Lead Full Stack Engineer to build and scale critical systems across backend services and user-facing applications on our trading platform. This is a role for a strong individual contributor who enjoys solving complex engineering problems in latency-sensitive, correctness-critical environments. The Lead Full Stack Engineer contributes hands-on across core backend systems and frontend applications — covering trading workflows, user lifecycle, risk and margin flows, financial data surfaces, and real-time interfaces. The ideal candidate combines strong backend depth with frontend ownership, and is comfortable driving technical execution, code quality, and architectural decisions as an individual contributor (no people-management responsibility).

Responsibilities

• Build and enhance backend services powering the trading platform - including user lifecycle, trade processing, and core financial workflows.
• Develop and maintain frontend applications and interfaces used by traders for order placement, position tracking, portfolio monitoring, and related workflows.
• Contribute to the design and implementation of systems for margin workflows, risk checks, balances, P&L calculations, and financial data accuracy.
• Build scalable, performant APIs and services using Golang or NodeJS, with strong attention to latency, concurrency, and system reliability.
• Build responsive, intuitive, high-performance UIs using React.js or equivalent frontend frameworks.
• Work on real-time systems and interfaces, including APIs and WebSocket-based data flows used by retail, algorithmic, and institutional traders.
• Make sound technical decisions for performance-critical and correctness-sensitive systems, in collaboration with senior engineering stakeholders.
• Review code and designs to identify scalability bottlenecks, concurrency issues, edge cases, and potential failure modes.
• Participate actively in debugging production issues, incident response, root cause analysis, and follow-through fixes.
• Collaborate closely with Product, Design, QA, Risk, and backend/frontend peers to deliver reliable, high-impact features.
• Drive engineering best practices around code quality, testing, observability, and maintainability through hands-on contribution and technical leadership.
• Take end-to-end ownership of modules and features - from design and development to deployment and production support.

MUST HAVE

• At least 6 years of experience building production-grade software systems as a Backend or Full Stack Engineer, with 2+ years of experience leading a team.
• Strong hands-on experience with Golang (real production experience)
• Hands-on expertise with ReactJS or an equivalent modern frontend framework.
• Experience building or maintaining high-concurrency, low-latency production systems (e.g. trading platforms, exchanges, fintech, payment processing, real-time transaction systems
• Experience building and shipping systems where performance, reliability, data integrity, and UX are critical
• Solid grasp of concurrency, asynchronous programming, API design, and distributed systems fundamentals.
• Experience building frontend apps with complex state management, data-heavy interfaces, and real-time updates.
• Ability to independently own and deliver features end-to-end in a fast-paced environment, collaborating cross-functionally (Product, Design, QA, Risk).
• Strong problem-solving, debugging, system design, and communication skills.
• Fluent in English communication.

NICE TO HAVE

• Experience with real-time dashboards, transaction-heavy systems, or high-throughput platforms.
• Familiarity with WebSockets, event-driven systems, caching layers, and performance optimization.
• Experience with cloud-native deployment environments, observability tooling, and production troubleshooting.
• Ability to act as a technical anchor for modules and guide engineering decisions without people-management responsibility (IC leadership).