Senior Full Stack Software Developer, Post-Trade

About Winton Winton is a research-based investment management company with a specialist focus on statistical and mathematical inference in financial markets. The firm researches and trades quantitative investment strategies, which are implemented systematically via thousands of securities, spanning the world's major liquid asset classes. Founded in 1997 by David Harding, Winton today manages assets for some of the world’s largest institutional investors. We employ ambitious professionals who want to work collaboratively at the leading edge of investment management.

We are seeking a Senior Full Stack Developer with strong experience in both modern web technologies and backend technologies, a talent for business processes, and a keen interest in finance.

is enthusiastic, collaborative and delivery-focused, with a strong sense of ownership and ability to pick things up quickly in a fast-paced environment. They will bring both a user-centred mindset and the technical depth required to deliver robust end-to-end solutions. You will be part of a friendly and collaborative team responsible for post-trade and reporting software development.

The role involves working closely with operations, fund accounting, and other teams across the business including senior management - there is no BA layer, you will gather requirements directly from the business, design solutions and own them end-to-end. In addition to project work, you will have regular opportunities to implement enhancements for both business and technology.

will include:

• Own and evolve core post-trade systems covering confirmations, trade support, treasury, corporate actions, reconciliations, limit monitoring and fund accounting
• Design and implement backend services, APIs and data integrations
• Build and maintain internal UIs where performance, data quality and usability all matter
• Work across the full application lifecycle:

gathering, design, implementation, testing, release and support

• Engage directly with business teams to understand requirements and translate them into thoughtful technical solutions
• Support production systems, investigate issues and implement fixes where required
• Collaborate through code reviews, design discussions, and knowledge sharing What we are looking for:
• 5+ years of professional software development experience, ideally in financial services or data-intensive systems
• Strong backend capability in C#/.NET
• you are comfortable designing services, APIs, and data integrations, not just consuming them
• Competent with a modern frontend framework
• you can build UIs that non-technical users actually want to use
• Comfortable using agentic AI coding tools such as Claude Code and are genuinely keen to use them as a natural part of daily work
• Interest in financial markets across all asset types
• Enthusiastic, collaborative and comfortable working closely with business stakeholders
• Strong communication skills with both technical and non-technical colleagues and a positive, can-do attitude What would be useful:
• Deep knowledge of any of: the trade life-cycle, valuation and P&L, fund accounting, margin calculation
• Familiarity with Angular (preferred), React or another structured modern front-end framework Technologies we use:
• Web: Angular, TypeScript
• Server-side: C#
• Data: MSSQL, PostgreSQL
• Cloud: AWS
• Deployment: Docker, Kubernetes Equal Opportunity Workplace We are proud to be an equal opportunity workplace. We do not discriminate based upon race, religion, color, national origin, sex, sexual orientation, gender identity/expression, age, status as a protected veteran, status as an individual with a disability, or any other applicable legally protected characteristics.

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