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- Tasks: Join our Core Engineering team to build a top-notch back office system for Flowdesk.
- Company: Flowdesk, a leading player in the DeFi and TradFi space.
- Benefits: Enjoy 100% health coverage, pension, and exciting team events.
- Why this job: Make a real impact in the fast-paced world of crypto and decentralised finance.
- Qualifications: Experience with crypto asset classes and hands-on DeFi protocol integration.
- Other info: Dynamic international environment with excellent career growth opportunities.
The predicted salary is between 36000 - 60000 £ per year.
OverviewFlowdesk\’s mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency. To achieve this in a rapidly evolving market, we apply a disciplined, first-principles approach to everything we do.
This approach is embedded in our core services, from institutional liquidity provision, trading solutions, OTC execution to our comprehensive treasury management offerings. This is how we cut through the noise and build robust and scalable systems across all our business lines.
We seek individuals who are driven by this systematic approach. Joining Flowdesk means you will be a key contributor in building and scaling a more transparent and efficient financial markets infrastructure.
Flowdesk is scaling fast, and behind every world-class trading operation is a core engineering team who provide the single source of truth and a scalable platform for business units to leverage. We\’re hiring a Core Engineer to join the team and help lead the design and delivery of a new internal platform.
MissionBe 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.
Must Haves – Experience
Lifecycle knowledge of crypto asset classes: spot, perpetuals, futures, and options (including DeFi implementations).
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.
Benefits
International environment (English is the main language)
Pension
100% health coverage
Team events and offsites
Recruitment Process
HR interview (30\’)
Technical interview – Hiring Manager (30\’)
Take home assignment + Live coding session (90\’)
Team Member Technical (45\’)
CTO (45\”)
Chat with the Head of People (30\’)
#J-18808-Ljbffr
Core Engineer - DeFi - London (F/M/D) employer: Flowdesk
Contact Detail:
Flowdesk Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Core Engineer - DeFi - London (F/M/D)
✨Network Like a Pro
Get out there and connect with folks in the industry! Attend meetups, webinars, or even just grab a coffee with someone who works in DeFi. Building relationships can open doors that a CV just can't.
✨Show Off Your Skills
Don’t just talk about your experience; demonstrate it! Create a portfolio showcasing your projects, especially those related to DeFi integrations or API design. This will give potential employers a taste of what you can bring to the table.
✨Ace the Interview
Prepare for your interviews by brushing up on common technical questions and scenarios related to crypto asset classes. Practice coding challenges and be ready to discuss your thought process. Confidence is key!
✨Apply Through Our Website
Make sure to apply directly through our website! It shows you're genuinely interested and gives us a chance to see your application in the best light. Plus, we love seeing candidates who take that extra step!
We think you need these skills to ace Core Engineer - DeFi - London (F/M/D)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Core Engineer role. Highlight your experience with DeFi protocols and any relevant projects you've worked on. We want to see how you can contribute to our team!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about DeFi and how your background makes you a perfect fit for Flowdesk. Keep it concise but engaging – we love a good story!
Showcase Your Technical Skills: In your application, don't forget to mention your technical expertise, especially in languages like Go, C++, or Python. We’re keen on seeing examples of your work, so feel free to include links to your GitHub or any relevant projects.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates during the recruitment process. Let’s get started!
How to prepare for a job interview at Flowdesk
✨Know Your DeFi Stuff
Make sure you brush up on your knowledge of DeFi protocols like Uniswap v3, Aave, and Curve. Be ready to discuss how you've integrated these into systems before, as this will show your hands-on experience and understanding of the crypto asset lifecycle.
✨Showcase Your Coding Skills
Since the role requires a strong OO background in languages like Go, C++, or Java, be prepared to demonstrate your coding skills. Practise writing clean, well-documented code and think about how you can explain your thought process during the live coding session.
✨Understand the Full Process
Familiarise yourself with the entire process from requirements analysis to post-production support. Be ready to discuss how you've owned components end-to-end in previous roles, as this will highlight your ability to manage projects effectively.
✨Communicate with Confidence
Since you'll be working closely with various internal stakeholders, practice articulating your ideas clearly. Prepare to discuss how you've collaborated with teams across Trading, Ops, and Compliance, as effective communication is key in this role.
