Full-Time
C# Developer
Risk Technology
Maven Securities
201-500 employees
Proprietary-capital multi-strategy trading and market making
No salary listed
London, UK
In Person
 Software Engineering (1) |
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- Strong analytical and system design skills
- Excellent C# ability including strong focus on testing processes
- NET Core; CI/CD, containerization (Docker and/or Kubernetes)
- Design and develop sound solutions to support critical business functions with a focus on testability, maintainability, performance and resilience
- Craft great code and tests, using automation as your friend
- Analyse, capture and communicate your design decisions
- Interact and collaborate with stakeholders, SRE’s and Infrastructure engineers
- The team’s main responsibility is for middleware and backend services; we also develop full-stack solutions, including web-based front-ends
- Knowledge of financial markets & securities (particularly equities, bonds, futures and options)
- Derivative pricing and risk management
- Python libraries (pandas, NumPy etc)
- SQL and large data handling experience
- Modern Front-end UI development experience, especially React and TypeScript
- Event-driven design, DDD, CQRS and/or EventSourcing experience for Multithreading, distributed design, message queues (e.g. Kafka, RabbitMQ), fault-tolerance, Prometheus, Grafana
Maven Securities trades and provides market liquidity across global financial markets using its own capital. It combines fundamental and quantitative methods to find trading opportunities and to execute trades efficiently from front office to settlements. The firm differentiates itself by using exclusively proprietary capital, strong risk controls, and a focus on technology to improve execution. Its goal is to earn sustainable profits while keeping markets liquid for institutional clients and other traders.
Company Size
201-500
Company Stage
N/A
Total Funding
N/A
Headquarters
London, United Kingdom
Founded
2011
Get referred to Maven Securities
See people who can refer or advise you
Simplify's Take
What believers are saying
- Maven posted 38 open roles in June 2026, signaling active growth.
- 2026 graduate, intern, and women-in-trading programs widen the funnel for future traders.
- Company pages updated July 2026 show expansion across Amsterdam, Chicago, Hong Kong, and London.
What critics are saying
- FCA scrutiny on market makers stays high; a permissions lapse would halt principal trading.
- Headcount concentration in London and Chicago exposes execution if top traders leave in 2026.
- Citadel Securities, Optiver, and Jane Street pressure spreads, forcing costly technology arms races.
What makes Maven Securities unique
- Maven runs proprietary capital only, avoiding client mandates and aligning trader P&L directly.
- Its 2026 recruiting spans London, Amsterdam, Chicago, and Hong Kong across options market making.
- Internal capital plus in-house risk systems since 2014 support fast strategy deployment.
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Benefits
401K Scheme
25 Days Annual Leave plus public holidays
Healthcare, Dental & Vision
Employee Volunteering Opportunities
Annual Discretionary Bonus
Company News
Maven Securities LTD has invested approximately $4 million in StandardAero, acquiring a stake of 150,000 shares as of the first quarter of 2023.
Maven Securities LTD acquired a new stake in Sotera Health in the 3rd quarter valued at approximately $1,670,000.
Soros Fund Management LLC acquired a new stake in Rithm Capital in the 3rd quarter valued at about $23,835,000.
Finally, Maven Securities LTD purchased a new stake in Rithm Capital in the 3rd quarter worth about $11,350,000.
Maven Securities LTD purchased a new stake in Wave Life Sciences in the third quarter worth $6,970,000.