Senior Full Stack Web Engineer - Crypto

Senior Full Stack Web Engineer - Crypto

Join Keyrock to apply for the Senior Full Stack Web Engineer - Crypto role.

About Keyrock

Since our beginnings in 2017, we've grown to be a leading change‑maker in the digital asset space, renowned for our partnerships and innovation. Today we rock with over 200 team members around the world, hailing from 42 nationalities. Predominantly remote, we have hubs in London, Brussels, Singapore and Paris, and host regular online and offline hangouts to keep the crew tight.

We are trading on more than 80 exchanges and working with a wide array of asset issuers. As a well‑established market maker, our distinctive expertise led us to expand rapidly. Our services span market making, options trading, high‑frequency trading, OTC and De
Fi trading desks as well as digital asset management. Keyrock is looking to expand and establish itself as a full‑service financial institution through both organic innovation and inorganic growth.

We’re more than a service provider. We’re pioneers in adopting the Rust development language for our algorithmic trading systems, champions of its use in the industry, and supporters of Web3 startups through our Accelerator Program. We upgrade ecosystems by injecting liquidity into promising De
Fi, RWA and NFT protocols and push the industry's progress with our research and governance initiatives. At Keyrock, we’re actively building the future of digital assets.

Mission statement

We are seeking a Full Stack Web Engineer with a strong sense of UI/UX design and a proven track record in the financial services industry. Experience in the crypto or digital asset domain is highly valued.

You will work across the entire technology stack— from data models and APIs to interactive, high‑performance interfaces—building and refining products that deliver tangible business value. You are driven by a product mindset, validating ideas early and evolving them from functional to exceptional, and are language‑agnostic and pragmatic in your technical choices.

You excel in collaborative environments, take ownership of your work, and contribute to a culture of technical excellence through reviews, mentorship and shared learning. If you combine creativity in front‑end craft with a deep appreciation for back‑end reliability and data integrity, this role is designed for you.

Job Description

• 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, Web
  Assembly and modern API frameworks.

Background And Experience

• Proven experience building full‑stack web applications with a strong command of both front‑end and back‑end principles.
• Proficiency in modern front‑end frameworks (Vue, React or similar) and design systems or component libraries such as Shadcn.
• Experience developing robust back‑end services, ideally using Rust, or familiarity with typed back‑end languages.
• Solid understanding of HTTP, RESTful API design and performance optimisation in web contexts.
• Hands‑on experience with relational and/or No
  SQL 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.

Preferred Qualifications

• 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, Open
  ID 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 (Git
  Lab 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.

Benefits

• A competitive salary package.
• Autonomy in your time management thanks to flexible working hours and remote work opportunities.
• The freedom to create your own entrepreneurial experience as part of a team focused on excellence.

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.

We perform background checks on all potential employees, which is a prerequisite to join Keyrock.

How to Apply

Visit our careers page for more details and to submit your application: https://keyrock.com/careers/