Senior Full Stack Web Engineer - Crypto

Keyrock, a leading change‑maker in the digital asset space, has grown since 2017 to over 200 team members worldwide. Our diverse team spans 42 nationalities and operates primarily remotely with hubs in London, Brussels, Singapore, and Paris.

We trade on more than 80 exchanges and provide market‑making, options, high‑frequency, OTC, and DeFi services. Our expertise extends to algorithmic trading with Rust, accelerator programmes for Web3 startups, and strategic liquidity provision for DeFi, RWA, and NFT protocols. We aim to evolve into a full‑service financial institution through innovation and growth.

We are looking for a Full Stack Web Engineer with a keen UI/UX sense and a proven track record in financial services. Experience in the crypto or digital asset domain is highly valued.

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• Deliver end‑to‑end product features—from backend APIs and data models to engaging, responsive UI components.
  
• Review and validate scalable software architectures, ensuring maintainability, reliability, and secure integrations across all layers.
  
• Champion good engineering practices, including code reviews, automated testing, documentation, and CI/CD workflows.
  
• Optimise performance across the stack through effective debugging, profiling, and system tuning.
  
• Collaborate with product and engineering teams to translate complex business and user requirements into elegant, performant solutions.
  
• Maintain consistent operational hygiene through clear documentation, smooth migrations, and predictable deployments.
  
• Explore and share emerging technologies, with particular interest in Rust, WebAssembly, and modern API frameworks.
  

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• Proven experience building full stack web applications with a strong command of both frontend and backend principles.
  
• Proficiency in modern frontend frameworks (Vue, React or similar) and component libraries such as Shadcn.
  
• Experience developing robust backend services, ideally using Rust, or familiarity with typed backend languages.
  
• Solid understanding of HTTP, RESTful API design, and performance optimisation in web contexts.
  
• Hands‑on experience with relational and/or NoSQL databases, schema design, and query optimisation.
  
• Familiarity with Git‑based workflows, continuous integration, and automated testing practices.
  
• Strong debugging, problem‑solving, and analytical skills.
  
• Product‑oriented mindset—balancing quality, speed, and user impact effectively.
  
• Excellent collaboration and communication skills, with a proactive attitude toward improving systems and team dynamics.
  

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• Exposure to data‑intensive, governance‑driven, or fintech/crypto applications, and curiosity for Rust or distributed systems.
  
• Awareness of secure coding practices, authentication/authorisation models (OAuth2, OpenID Connect).
  
• Knowledge of data visualisation libraries (D3.js, Recharts, or similar).
  
• Familiarity with observability stacks (Grafana, Prometheus, Loki, Faro, or Datadog) and comfort instrumenting metrics, logs, and traces.
  
• Ability to design applications with self‑observability in mind (e.g., health endpoints, tracing IDs, telemetry propagation).
  
• Exposure to Kubernetes, containerised environments, and Helm‑based deployments.
  
• Understanding of CI/CD pipelines (GitLab CI) and infrastructure‑as‑code workflows.
  
• Experience working in cloud‑native environments (AWS, GCP, or Azure) and awareness of security‑first design.
  
• Comfort working with financial datasets, trade logs, or analytics dashboards.
  
• Experience handling sensitive or regulated data, ideally in financial or crypto contexts.
  

We value self‑awareness and powerful communication skills in our recruitment process. We seek fiercely passionate people who understand themselves and their career goals. We look for those with the right skills and a conscious choice to join our field—ideally a crypto enthusiast who’s driven, collaborative, acts with ownership, and delivers solid, scalable outcomes.

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• A competitive salary package.
  
• Autonomy in time management with flexible working hours and remote work opportunities.
  
• The freedom to create an entrepreneurial experience by being part of a high‑performance team.
  

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• Seniority level: Mid‑Senior level
  
• Employment type: Full‑time
  
• Job function: Engineering and Information Technology
  

As an employer we are committed to building a positive and collaborative work environment. We welcome employees of all backgrounds and hire, reward, and promote entirely based on merit and performance. xcfaprz

Due to the nature of our business and external requirements, we perform background checks on all potential employees, passing which is a prerequisite to join Keyrock.