At a Glance
- Tasks: Develop and enhance post-trade systems while collaborating with various teams.
- Company: Join a dynamic financial services firm focused on innovation and collaboration.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Engage directly with business teams and enjoy a supportive, collaborative environment.
- Why this job: Make a real impact in finance by delivering robust software solutions.
- Qualifications: 5+ years in software development, strong C#/.NET skills, and a passion for finance.
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. The ideal candidate 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.
Your Responsibilities 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: requirements 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.
Senior Full Stack Software Developer, Post-Trade employer: Winton Capital US LLC
Winton is an exceptional employer that champions a collaborative and intellectually stimulating work culture, ideal for Data Analysts passionate about quantitative analysis and financial markets. With a strong focus on employee growth, we provide opportunities to engage with cutting-edge technology and vast datasets, ensuring that our team members can thrive in their roles while contributing to the success of our data-driven business. Located in a dynamic environment, Winton offers unique advantages such as access to industry-leading resources and a commitment to maintaining high data quality standards, making it a rewarding place to build a meaningful career.
