---
title: 'Senior Software Engineer, C++ at Flow Traders'
canonical: 'https://feeny.ai/job/senior-software-engineer-c-flow-traders-new-york-4x803pm867gw'
type: 'job'
last_seen: '2026-09-10'
---

# Senior Software Engineer, C++ at Flow Traders

- **Company:** Flow Traders
- **Location:** New York, NY
- **Posted:** 2026-07-09
- **Last confirmed live:** 2026-09-10
- **Apply:** https://job-boards.greenhouse.io/flowtraders/jobs/8027268

## Job description

Flow Traders is looking for Senior C++ Software Engineers to join our growing team in New York or Chicago. Software Engineers at Flow Traders provide us with our competitive edge, equipping Researchers and Traders with the information and capabilities that they need to make sound business decisions. C++ plays a critical role in our event-driven trading systems, which are designed to reliably handle vast amounts of data at ultra-low latencies.

As a C++ Engineer, you will build systems used to analyze and trade tens of thousands of products across hundreds of global trading venues every day. Working closely with Technologists, Quantitative Researchers, and Traders, you’ll guide the development of our in-house trading technology and optimize it to achieve market-leading performance and reliability. Our proprietary trading platform includes everything from venue connectivity (feed handlers and ordering gateways) to trading engines to shared platforms that enable us to work quickly and efficiently - we are proud of our open and collaborative culture, so you’ll have plenty of opportunity to find what fits you best.

Teamwork is one of our most important firm values, and end users are never more than a short walk away, guaranteeing short feedback loops and immediate insight into the value that your code provides. To foster collaboration and innovation, we maintain shared libraries, encourage code re-use, and continuously evolve our views on application architecture.

## What you will do

For all C++ openings:

- Lead the development and global rollout of our Core platform used in multiple business/focus groups (Market data, Quantitative research, Pricing, Strategies)
- Be involved in the development process, which will be a fast-paced iterative process where you deploy your deliverables and validate them yourself and/or together with traders or quants
- Develop tools/frameworks to deliver capabilities for tuning/develop data-driven systematic pricing and trading strategies
- Work together with focus group engineers, Quants and Technical traders to refine requirements, collect feedback, and iterate on design and implementation of platform requirements

Exchange Connectivity:

- Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests
- Ensure quality of software based on a set of testing suites, which you are expected to use, maintain and extend
- Optimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange
- Research exchange behavior in detail to align our behavior to that of an exchange
- Implement these solutions using the provided exchange SDKs in different languages such as C++, Rust, Python, Typescript

Trading Strategies:

- Implement trading algorithms based on requirements provided by traders and quants
- Acquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation
- Continuously improve the stability, reliability, and performance of the trading engine
- Enhance monitoring and observability in collaboration with the Trading Operations team
- Investigate and resolve production issues such as crashes, unexpected business logic behavior, and performance bottlenecks
- Prepare for releases and deployments of new trading engine versions

## What you need to succeed

- BSc, MSc, or PhD in Computer Science, Mathematics or equivalent
- 5+ years post-graduation professional C++ software development experience (proprietary trading industry preferred)
- Ability to write clean, reliable, and highly scalable code
- Good knowledge of algorithms and data structures
- Experience in parallel, asynchronous, and multithreaded programming
- Interest in achieving maximum performance from available hardware and software
- Ability to communicate with technical and non-technical business colleagues

At Flow Traders, we acknowledge the importance of open and transparent communication whether it be with our employees, our stakeholders, or our local and global communities. When it comes to salary, Flow Traders uses reliable market research to create base ranges. Where candidates will fall within the range depends on a few different factors including but not limited to level of experience, location, and specific skill set. We also consider ourselves one global team, and to demonstrate that, all employees are eligible to share in the company’s success through an annual discretionary variable remuneration allocated based on company, group and individual performance and contribution.

Per NYC salary transparency law, the total compensation for this role includes a base range of $185,000 to $225,000 plus annual discretionary variable remuneration.

Flow Traders does not accept unsolicited resumes from any professional staffing or search firms. All resumes, and any other information identifying potential candidates, submitted to any employee at Flow Traders via-email, the Internet or directly without a valid and signed search agreement will be deemed free to contact by Flow Traders without any restrictions and no placement fee of any kind will be paid in the event the candidate is hired by Flow Traders.

## #LI-MM1

## About Flow Traders

## Company Overview
- **One-liner**: Flow Traders is a global technology-enabled liquidity provider and market maker that enhances efficiency and transparency across financial markets.
- **Entity Type**: Public (Euronext Amsterdam: FLOW)
- **Headquarters**: Amsterdam, Netherlands
- **Founded**: 2004
- **Founders**: Not publicly available

## Core Business
- **Primary industries**: Financial services, electronic trading, market making, liquidity provision
- **Target customers**: Institutional investors, exchanges, trading platforms (B2B)
- **Mission statement**: “To enhance the seamless functioning and accessibility of markets, in order to unlock the potential of investing.”

## Products & Services
- **Exchange-Traded Products (ETP) Market Making**: Core business – providing continuous liquidity on ETPs across global exchanges.
- **Fixed Income Trading**: Expanded into fixed income in 2021.
- **Foreign Exchange (FX) & Digital Assets**: Added FX and digital assets capabilities to diversify product range.
- **Off-Exchange Trading**: Proprietary off-exchange trading offering launched in 2017.
- **Investment Unit**: Dedicated investment unit launched in 2022 to invest in the financial ecosystem.

## Market Standing
- **Valuation/Market Cap**: Not disclosed in provided sources; publicly listed on Euronext Amsterdam (ticker: FLOW).
- **Key Metric**: Total income of €480.5 million in 2025 (Annual Report 2025).
- **Notable Investors/Partners**: Not explicitly listed, but the firm has a strong institutional client base and holds licenses such as QFII for on-shore trading in China.
- **Growth Signals**: 
  - Over 630 professionals globally (2025).
  - Expanded into fixed income, FX, and digital assets.
  - Opened offices in Chicago, Shanghai, Paris, Hong Kong, Milan, New York, and Cluj (technology development).
  - Over 40% of workforce in Technology.
  - 10-year public company milestone in 2025.

## Competitive Advantages
- **Technology-driven**: Proprietary, best-in-class trading infrastructure; over 40% of employees in Technology.
- **Global reach**: Trading hubs in Europe, the U.S., and Asia-Pacific providing 24-hour liquidity across major exchanges and platforms.
- **Entrepreneurial culture**: Flat, informal environment with direct communication and a 20+ year track record of innovation.
- **Diversification**: Expanded from ETPs into fixed income, FX, digital assets, and off-exchange trading, reducing reliance on any single asset class.

## Strategic Focus
- **Continued diversification**: Deepening presence in digital assets, fixed income, and FX.
- **Technology investment**: Building next-generation solutions to power trading and maintain competitive edge.
- **Geographic expansion**: Strengthening on-the-ground presence in key financial hubs (Chicago, Shanghai, etc.).
- **Ecosystem investment**: Through the dedicated investment unit, supporting innovation in the broader financial ecosystem.

## Why Work Here
- **Culture**: International, diverse, and empowering; informal with open communication; entrepreneurial spirit.
- **Technology focus**: Over 40% of staff in Technology; opportunity to work on cutting-edge trading systems.
- **Global opportunities**: Global Rotation Program allowing employees to work in different locations (Amsterdam, New York, Hong Kong, etc.).
- **Compensation**: Attractive package including base salary and discretionary variable component.
- **Perks**: Annual company trip, holiday parties, sports events, wellness programs, healthy food, and charity initiatives through the Flow Traders Foundation.
- **Learning & Development**: Dedicated learning platform, conference sponsorship, and specialized onboarding for Trading and Technology teams.
- **Visa sponsorship**: Provided for international candidates (including partner/children); relocation assistance offered.
- **Offices**: Vibrant workspaces with lounges, bars, gaming areas, and free lunches/coffee.

## Sources
1. [flowtraders.com - About](https://www.flowtraders.com/about/)
2. [flowtraders.com - Careers](https://www.flowtraders.com/careers/)
3. [flowtraders.com - Annual Report 2025](https://flowtraders.com/media/2s2pdl01/flow-traders-annual-report-2025.pdf)
4. [greenhouse.io - Flow Traders Jobs](https://boards.greenhouse.io/flowtraders)

## Other roles at Flow Traders

- [Risk Manager](https://feeny.ai/job/risk-manager-flow-traders-hong-kong-2jqyd1rxzz7r) — Hong Kong, China
- [Junior Quantitative Researcher](https://feeny.ai/job/junior-quantitative-researcher-flow-traders-new-york-xnxpkq9m4359) — New York, NY
- [Experienced Quantitative Researcher](https://feeny.ai/job/experienced-quantitative-researcher-flow-traders-new-york-aqwf2cgsbrgj) — New York, NY
- [Software Engineer (Trading Automation)](https://feeny.ai/job/software-engineer-trading-automation-flow-traders-new-york-fpvkbjwavskf) — New York, NY
- [Global Head of Operations and Middle Office](https://feeny.ai/job/global-head-of-operations-and-middle-office-flow-traders-amsterdam-wbkwh0jhwhqm) — Amsterdam, Netherlands
- [Talent Pool: Trading Systems Engineer](https://feeny.ai/job/talent-pool-trading-systems-engineer-flow-traders-new-york-jstr4581k5qk) — New York, NY
- [Engineering Manager - Research Engineering](https://feeny.ai/job/engineering-manager-research-engineering-flow-traders-london-p05g77hxmmgc) — London, United Kingdom
- [Engineering Manager - Research Engineering](https://feeny.ai/job/engineering-manager-research-engineering-flow-traders-amsterdam-p5v2bct31hpm) — Amsterdam, Netherlands
- [Staff Enterprise Engineer](https://feeny.ai/job/staff-enterprise-engineer-flow-traders-amsterdam-mvxt2mmp74fe) — Amsterdam, Netherlands
- [Trading Intern](https://feeny.ai/job/trading-intern-flow-traders-hong-kong-4vm1t6hk1gwa) — Hong Kong, China