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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.
What does a full stack developer in web3 do?
A full stack web3 developer is a developer who has expertise in the full stack of technologies that are used to build web3 applications
These applications use the decentralized, distributed nature of the web3 network to provide users with a secure and decentralized way of accessing and interacting with online services and applications. The responsibilities of a full stack web3 developer will vary depending on the specific project and the needs of the team they are working with
In general, though, a full stack web3 developer will be responsible for: designing and building the front-end and back-end of web3 applications, as well as implementing and maintaining the underlying blockchain infrastructure
This will often involve working with a variety of different technologies and programming languages, such as Solidity for smart contract development, JavaScript and HTML for front-end development, and various blockchain protocols and frameworks. Additionally, a full stack web3 developer may also be responsible for working with the web3 community to help drive adoption and integration of web3 technologies, as well as staying up-to-date on the latest developments in the field and contributing to the broader web3 ecosystem.