Full-Time
Blockchain Engineer
London
Posted on 10/3/2025
Flow Traders
501-1,000 employees
Global liquidity provider for ETPs
No salary listed
London, UK
In Person
Role is hybrid based in Amsterdam per job description; title mentions London but description says hybrid role based in Amsterdam. London office mentioned as 'Locations: london office' conflicting. Since hybrid based in Amsterdam and London office listed, determine primary location as Amsterdam with hybrid travel? The description says hybrid role based in Amsterdam; must set location Amsterdam, Netherlands, Europe. Since not remote. travel_requirements IN_PERSON. additional_location_info: The London mention and sponsorship note. Ambiguity: provide note about inconsistency and choose Amsterdam as primary location; London office is not used.
 Software Engineering (1) |
|---|
- BSc, MSc, or PhD in Computer Science, Software Engineering, or related fields
- 5+ years of commercial experience in software development
- Strong expertise in one or more back-end programming languages: Python, Rust, Go, Java
- Solid experience in DeFi development (protocol interactions, arbitrage, liquidity management).
- Strong blockchain knowledge, including nodes, consensus mechanisms (PoW, PoS), and Web3
- Experience with smart contract development in Solidity and/or Rust
- Deep understanding of backend architecture, including scalable distributed systems, microservices, and event-driven processing
- Hands-on experience with cloud infrastructure (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)
- Understanding of security best practices in blockchain and back-end development (e.g., private key management, transaction signing, API security)
- Familiarity with Kafka, Redis, gRPC, and WebSockets for real-time data processing
- Experience working with on-chain data analysis, indexers, and oracles, a plus
- Knowledge of MEV (Maximal Extractable Value) strategies and blockchain transaction ordering, a plus
- Prior experience working in low-latency, high-performance trading environment, a plus
- Work closely with trading desks to develop scalable and low-latency solutions for DEX Trading
- Contribute to the architecture and development of high-performance, real-time trading systems for DeFi markets
- Encourage the team to grow our Blockchain understanding bringing in protocol-specific knowledge and best practices
- Develop and maintain on-chain and off-chain components, including smart contracts, indexers, and market-making bots
- Implement robust APIs and integrate with DeFi protocols, liquidity pools, and decentralized exchanges (DEXs)
- Design and optimize event-driven microservices for real-time blockchain transaction processing
- Ensure high availability, reliability, and security of blockchain-based back-end systems
- Collaborate with Quantitative Researchers, Traders, and Software Engineers to identify and implement automation and acceleration strategies for the Digital Assets desk
- Follow the best software engineering practices which are supported by the best working environment, latest technology and continuous support from all parts of Flow Traders organization
- Experience working with on-chain data analysis, indexers, and oracles, a plus
- Knowledge of MEV (Maximal Extractable Value) strategies and blockchain transaction ordering, a plus
- Prior experience working in low-latency, high-performance trading environment, a plus
Flow Traders provides liquidity in global financial markets by acting as a market maker for Exchange Traded Products (ETPs) and other listed instruments. It uses a proprietary technology platform to continuously quote bid and ask prices for thousands of ETP listings, helping buyers and sellers execute trades with tight spreads. The company earns money from the bid-ask spread and trading fees, leveraging high-frequency, low-margin trading across major markets worldwide (Americas, APAC, EMEA). Flow Traders differentiates itself through its large-scale, technology-driven approach and specialization in liquidity provision for ETPs, backed by a global footprint and a focus on reliability for institutional clients like hedge funds and asset managers. Its goal is to improve market efficiency by ensuring there are always ready buyers and sellers, while pursuing sustainable growth and responsible corporate citizenship.
Company Size
501-1,000
Company Stage
IPO
Headquarters
Amsterdam, Netherlands
Founded
2004
Simplify's Take
What believers are saying
- Tokenized assets expansion captures institutional demand for round-the-clock trading of digital securities.[1]
- Increased trading capital by 33% enhances ability to capture emerging market opportunities.[1]
- U.S. regulators establishing clearer digital asset classifications and gold standard prediction market rules.[3]
What critics are saying
- MiCA enforcement bans yield-bearing stablecoins, restricting Flow Traders' BENJI and Tether Gold trading.[2]
- Maple Finance's $40M lending pool exposes Flow Traders to DeFi contagion and collateral liquidation risks.[4]
- Wintermute's superior scale and earlier DeFi integration erodes Flow Traders' tokenized assets market share.[4]
What makes Flow Traders unique
- Europe's largest ETP market maker with 9% market share, capturing institutional liquidity demand.
- 24/7 tokenized assets OTC platform enables round-the-clock trading for institutional clients globally.
- Proprietary technology platform quotes thousands of ETP listings with advanced bid-ask spread optimization.
Help us improve and share your feedback! Did you find this helpful?
Benefits
Medical, Vision, Dental Insurance coverage
401(k) plan with generous match
In-house lounge with a bar, game consoles, poker & billiards tables
Daily catered lunch, cold brew coffee on tap and a fully stocked kitchen
Weekly table massages and bi-weekly haircuts
Annual company trip and a variety of events throughout the year
Reimbursed gym membership or home equipment and other wellness initiatives
Global rotations between our offices worldwide
Flow Academy for continuous learning and opportunities to attend industry seminars and conferences
Growth & Insights and Company News
6 month growth
↑ 0%1 year growth
↑ 0%2 year growth
↑ 0%Hong Kong, April 8, 2026 — Pharos Network, a Layer 1 blockchain network designed for institutional financial use cases, today announced the completion of a $44
Flow Traders' fair value estimate has been updated to €30.07 from €29.79, representing minimal adjustment that analysts characterise as fine-tuning rather than a fundamental reassessment. The tight valuation range suggests converging views amongst bullish and cautious analysts. The small revision indicates confidence in the underlying business model, though some analysts caution that limited upside remains if execution falters. The narrow spread suggests current valuations already reflect visible expectations, leaving little margin for error. Flow Traders recently launched a digital assets over-the-counter offering providing round-the-clock liquidity for tokenised money market funds, equities and commodities, including Franklin Templeton's BENJI and Tether Gold. The platform enables secondary market trading outside regular hours, with institutional access via FIX connectivity and OMS/EMS platforms.
Flow Traders has expanded its digital assets business with a 24/7 over-the-counter platform for tokenized money-market funds, equities and commodities, targeting institutional demand for round-the-clock trading access. The company's shares currently trade at €27.70, with a 30-day return of 4.84% and 90-day return of 10.27%. The most followed valuation narrative places fair value at €29.79, suggesting the stock is approximately 7% undervalued. Flow Traders increased its trading capital by 33% over the year, enhancing its ability to capture market opportunities. The expansion into tokenised assets comes amid favourable market trends in exchange-traded products, digital assets and electronic trading, which could support long-term revenue and profit growth.
Utexo, a Bitcoin-native stablecoin settlement platform, has raised $7.5 million in a seed round co-led by Tether, Big Brain Holdings and Portal Ventures. Franklin Templeton, Maven11 Capital and Fulgur Ventures were among the participants. The Dubai-based startup enables native USDT settlement directly on Bitcoin and the Lightning Network, with transactions completing in under one second. The platform uses a single API layer that combines Bitcoin, Lightning and RGB protocols, allowing payment operators to route USDT settlements without managing underlying technical complexity. Utexo's infrastructure offers fixed, predictable fees paid in USDT that don't fluctuate with network congestion. Transactions are executed privately with only encrypted data written on-chain. The company targets payment service providers, exchanges, wallets and trading firms already moving large USDT volumes.
Flow Traders has secured $275 million in credit facilities, led by Stone Point Credit and Benefit Street Partners. Debevoise & Plimpton LLP advised the lenders. The deal includes a $200 million private credit component.