At a Glance
- Tasks: Join our Core Engineering team to build a world-class back office system for digital assets.
- Company: Flowdesk, a leading firm at the intersection of finance, technology, and crypto.
- Benefits: Competitive salary, flexible working hours, and opportunities for professional growth.
- Other info: Collaborative hybrid work environment with a focus on innovation and compliance.
- Why this job: Be part of shaping the future of global finance with cutting-edge technology.
- Qualifications: Experience in crypto asset classes and strong coding skills in languages like Go or Java.
The predicted salary is between 63000 - 77000 £ per year.
About Flowdesk
At Flowdesk, we are building the infrastructure powering the next era of global finance. As a full-service digital asset trading and technology firm, we provide liquidity solutions, OTC trading, and market infrastructure that connect digital assets to global markets with institutional-grade precision, transparency, and scale. Flowdesk combines expertise from traditional finance, algorithmic trading, and blockchain technology to deliver always-on trading capabilities across the digital asset ecosystem. Founded in 2020, we have grown into a global team supporting institutions, exchanges, and token issuers worldwide as the financial system evolves toward tokenized markets.
Why join Flowdesk?
You'll be joining a company operating at the intersection of finance, technology, and crypto - solving complex market problems, building critical infrastructure, and helping shape how digital assets move globally. We move fast, think long term, and work with a strong ownership mindset across engineering, trading, product, operations, and business teams.
Mission
Be a key player in the newly formed Core Engineering team at Flowdesk to build a world-class back office system which will serve as the backbone for Flowdesk's systems. Work alongside a seasoned team with deep product, buy-side, and sell-side experience in both Crypto and TradFi.
Tasks
- DeFi Integrations: Collect all necessary on-chain data and integrate with decentralized protocols to power an accurate, real-time back office system. You will be responsible for ensuring management has a comprehensive, up-to-date view of all on-chain assets. This includes owning the full process from requirements analysis, task specification, implementation, to post-production support.
- Core Booking / Aggregation: Implement and enhance features in the core booking and aggregation engine (Realised / Unrealised P&L, Balances etc…) ensuring performance, reliability and correctness.
- Reconciliation: Automate reconciliation of all trading and treasury activity across the firm implementing data feeds from internal systems, banking, exchanges and custodians.
- Reporting: Work closely with the Finance and other internal users to gather and refine requirements, plan milestones, demo progress, and coordinate cutovers from manual / legacy workflows.
- Data products and APIs: Expose well-versioned APIs and event streams for downstream consumers; maintain backward compatibility and schema evolution.
Ways of working
- Follow established architecture and coding standards; participate in RFCs/design reviews and propose incremental improvements within existing patterns.
- Write clean, well-documented code and meaningful tests.
- Contribute to PR reviews; maintain up-to-date technical docs and diagrams.
- Own components end-to-end from spec to production support.
Who You Are
You are a problem solver who uses software as a tool to deliver measurable business impact. You enjoy writing and shipping high-quality code, seeing it run in production, and collaborating across teams in a hybrid, cross-location environment. You communicate clearly with stakeholders and care about reliability, security, and compliance.
Must Haves - Experience:
- Lifecycle knowledge of crypto asset classes: spot, perpetuals, futures, and options (including DeFi implementations).
- Experience with trade lifecycle including backoffice and post trade.
- Hands-on integration with DeFi protocols (DEX/AMM, lending, derivatives) such as Uniswap v3, Curve, Aave.
- Proven track record delivering scalable, reliable systems in production.
- Comfortable partnering with internal stakeholders across Trading, Ops, Compliance, and Engineering.
Must Haves - Technical:
- Strong OO background in one or more: Go, C++, C#, Java or Rust.
- Experience with Typescript and Python API design (versioning, backwards compatibility, observability).
- Postgres schema design and query optimization.
- Experience with message queue / pub-sub systems.
- Familiarity with cloud environments (GCP, AWS, Azure), modern CI/CD and containerization.
Nice-to-Haves - Experience:
- Built or maintained position-keeping / accounting systems (PnL, accounting methods, pricing, greeks).
- Centralized reference data platforms (assets, networks, instruments), consistent symbology and instrument economics.
- Trading, risk, or back-office systems, ideally in regulated environments.
Nice-to-Have - Technical:
- Rust and/or Solidity.
- Integrating with nodes/providers (e.g. QuickNode).
- Time-series/analytical databases (e.g., ClickHouse, BigQuery).
- NATS.io gRPC/Protobuf and high-performance, low-latency services.
How we work:
- Hybrid, cross-time-zone collaboration with clear documentation and async communication.
- Close partnership with platform/infrastructure teams (cloud and runtime) and IT/end-user teams.
- Emphasis on secure-by-design, reliable systems and compliance-ready engineering.
DeFi Engineer in London employer: Flowdesk
Flowdesk is an exceptional employer that fosters a dynamic work culture where innovation meets collaboration. Located in a vibrant tech hub, we offer our employees unparalleled growth opportunities through hands-on experience in the fast-paced world of crypto trading. With a strong emphasis on professional development and a supportive team environment, Flowdesk empowers you to thrive while making a meaningful impact in the industry.
StudySmarter Expert Advice🤫
We think this is how you could land DeFi Engineer in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Flowdesk or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Flowdesk.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Flowdesk.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Flowdesk that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace DeFi Engineer in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Flowdesk.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Flowdesk and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Flowdesk
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Flowdesk uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
