Job Description
About the role
We’re looking for a Senior Full-Stack Engineer to join an established trading platform development programme for a large enterprise client. The system is production-critical, long-lived, and actively evolving, with a strong focus on performance, reliability, and maintainability.
While Applied Blockchain is well known for distributed ledger and cryptography work, this role is focused on a non-blockchain trading system built using modern TypeScript-based technologies.
You’ll be joining a highly experienced team of senior engineers and QA developers, where autonomy, technical ownership, and thoughtful decision-making are expected.
What you’ll be doing
Designing, building, and maintaining features across the full stack of an internal trading platform
Working primarily with:
- TypeScript (Node.js & React)
- Monorepo tooling, GitHub, GitHub Actions
- Jest, Playwright
- Redis, MS SQL, WebSockets
- Docker, Kubernetes
- Observability tooling (Grafana, Prometheus, SonarQube)
Taking end-to-end ownership of features from design through to production
Collaborating closely with platform / DevOps engineers on build pipelines, observability, and operational concerns
Communicating directly with the client to clarify requirements and propose solutions
Contributing to and improving automated testing practices
Participating in peer code reviews and helping maintain high engineering standards across the team
Using LLM/AI enabled development tools and techniques (with access to the latest OpenAI/Anthropic/etc. models) as part of day-to-day development
5+ years of professional software development experience
3+ years of hands-on experience with TypeScript, including Node.js and React
Strong experience building and maintaining production systems
Solid understanding of DevOps and operational concerns (logging, metrics, automation)
Comfortable working in a senior, autonomous engineering team
Strong communication skills and fluency in English
Flexible working location (remote, London office, or Porto office)
Nice to have
Experience with functional programming concepts or languages (e.g. OCaml, Haskell)
Prior experience in trading, finance, or other real-time systems
5 days per year dedicated to training
£1,000 annual training allowance (up to 50% usable for home workstation equipment)
Company equipment and onboarding kit
In-person team events every 3 months
Annual bonus (company and personal performance dependent)
Stock option plan
Birthday off
Generous employee referral programme
About Applied Blockchain
Applied Blockchain is an innovative applications development company based in London and Porto, specialising in complex, high-assurance systems using distributed technologies and advanced cryptography. We value pragmatic engineering, clear thinking, and building systems that last.
