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Flow Traders

Global liquidity provider for ETPs

Senior Software Engineer - Core Platform

Full-TimeUpdated on 10/21/2026
No salary listed
Senior
Bachelor's, Master's, PhD
Amsterdam, Netherlands
In Person
Software EngineeringBackend Engineering

About the job

Requirements
  • A BSc, MSc, or PhD in Computer Science, Mathematics, or a related field.
  • At least 7 years of post-graduation professional C++ software development experience.
  • Experience building low-latency market data ingestion, order execution, and algorithmic trading systems; proprietary trading industry experience is preferred.
  • Strong knowledge of algorithms and data structures.
  • Experience in parallel, asynchronous, and multithreaded programming.
  • Demonstrated ability to write clean, reliable, and highly scalable C++ code.
  • Interest in extracting maximum performance from available hardware and software, including CPU caches, memory layout, and networking.
  • Ability to communicate effectively with technical and non-technical colleagues.
Responsibilities
  • Lead the development and global rollout of the Core market data platform used across Market Data, Research Engineering, Pricing, and Strategies.
  • Design and implement high-performance components for market data ingestion, normalization, and distribution, and for use in order execution and strategy infrastructure.
  • Develop tools and frameworks that enable quants and technical traders to build, tune, and deploy data-driven systematic pricing and trading strategies.
  • Own the full lifecycle of components in a fast-paced, iterative environment by deploying, monitoring, profiling, and optimizing code in production.
  • Work with focus-group engineers, quants, and technical traders to refine requirements, collect feedback, and iterate on platform design and implementation.
Desired Qualifications
  • Proprietary trading industry experience.

About the company

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

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Simplify's Take

What believers are saying

  • Q2 2026 net profit reached €40.8 million, despite ETF volumes falling 14%.
  • H1 2026 shareholders' equity hit €970 million, and trading capital rose to €1.15 billion.
  • Tokenized-asset market grew to about $34 billion in 2Q26, supporting Flow Traders' expansion.

What critics are saying

  • H1 2026 digital-assets NTI fell 36%; Bitcoin was down 33% year-to-date.
  • Fixed operating expenses rose 15% in H1 2026, and guidance increased to €245 million.
  • October 2025 private-credit facilities pledge intangibles; collateral stress can squeeze liquidity in 2026.

What makes Flow Traders unique

  • Flow Traders' 2Q26 RoTC hit 53%, proving capital-efficient electronic market making.
  • Its proprietary ETF and digital-asset pricing spans EMEA, Americas, and APAC.
  • March 2026 tokenized-asset OTC liquidity gives 24/7 institutional access.

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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

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

0%
Business Insider
Oct 15th, 2026
Spout raises $2M to offer 0% interest loans against tokenised US stocks

Spout, a Solana-based lending protocol, has raised $2 million in a strategic round. Investors include Draper Dragon, Anchorage Digital, Flow Traders, and Taisu Ventures, with strategic backing from Solana Labs. Users post tokenized US stocks as collateral and borrow USDC at a flat 50% loan-to-value ratio, paying 0% interest. Spout instead sells covered call options against the collateral each week, and uses the premium to pay lenders. Charles Schwab and Fidelity charge 12.075% a year on margin balances under $25,000. Private banks offer securities-based lending at 4% to 6%, but mainly to clients who meet high minimums. Spout is not yet on Mainnet. Its beta runs on Solana Devnet, and a private beta will launch soon. The funding will go towards growing the team and building its credit layer.

Yahoo Finance
Aug 1st, 2026
Flow Traders posts $46.1M Q2 profit with 53% return on capital despite 14% market decline

Flow Traders reported a net profit of €40.8 million for Q2 2026, with earnings per share of €0.93. The company achieved a 53% return on trading capital and maintained a 43% EBITDA margin. Despite global ETF market volumes declining 14% quarter-on-quarter, Flow Traders' ETF value traded increased 34% year-on-year, demonstrating resilience in its market-making model. Shareholders' equity reached a record €970 million, up 6% quarter-on-quarter. The digital assets business faced challenges, with net trading income down 36% year-on-year for the first half. Bitcoin's 33% year-to-date decline negatively impacted crypto market activity. Fixed operating expenses rose 15% year-on-year for the first half, driven by technology investments. The company maintained its full-year expense guidance of €235 million to €245 million.

The Block
Jun 24th, 2026
a16z CSX-backed Cambrian raises $6M seed to build blockchain data oracle network

Cambrian, a blockchain data infrastructure startup, has raised $6 million in seed funding co-led by Franklin Templeton and Polychain Capital. Flow Traders, Selini Capital, Paper Ventures and Nomad Capital also participated, alongside angel investors. The round, structured as a SAFE with token warrants and closed last month, brings Cambrian's total funding to $11.9 million, including a $5.9 million pre-seed round led by a16z Crypto Startup Accelerator last year. Founded in 2024, Cambrian provides an API delivering real-time and historical blockchain data covering yield, risk, lending rates and market sentiment. The company plans to expand into a verifiable oracle network for institutions and AI agents. The platform currently indexes $4.5 billion in lending total value locked and supports Base and Solana, with Ethereum mainnet coming next.

finews.com
Jun 9th, 2026
Swiss Fintech Raises 5 Million to Bring Structured Products Onto the Blockchain

Zug-based fintech TVL Capital has secured $5 million in fresh funding to accelerate the development of blockchain-native structured products. The company, founded by former executives from Morgan Stanley, UBS and The Block, aims to modernize a multi-trillion-dollar market by ...

KuCoin
Apr 9th, 2026
Pharos Network Completes $44M Series A, Total Funding Reaches $52M to Scale On-Chain Economy | KuCoin

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