Senior Software Engineer – Financial Technology

Mondrian Alpha — United States · Posted ~3 hours ago

Senior Full-time

Skills

Software engineering Backend development API development Scalable systems Data platforms Application modernization Cloud computing Backend services APIs Cloud

🔓 Log in to save this job, tailor your resume & track your apply process — 7 days free, no card needed.

Log in to add to target list

Summary ✨ AI‑Generated

A leading financial organization is seeking a senior software engineer for a highly visible role at the intersection of technology and business. You will build business-critical applications, scalable backend services, APIs, data platforms, and user-facing applications while modernizing legacy systems into more modular, cloud-oriented architectures. The role involves close collaboration with senior business stakeholders and substantial technical ownership.

Highlights

A highly visible, hands-on engineering role with strong exposure to business stakeholders and business-critical financial systems. The position combines backend services, APIs, data platforms, user-facing applications, and modernization of legacy technology toward modular cloud-based architecture.

Description

I’m working with a leading global hedge fund in New York that is seeking a Senior Software Engineer to join their Technology team. This is a highly visible, hands-on engineering role sitting at the intersection of technology and the wider business. The team develops a broad range of platforms used across middle and back-office functions, covering areas such as trade processing, compliance, financial data, accounting and reporting. You’ll work closely with senior stakeholders across the business in an environment where engineers are expected to understand the problems they are solving rather than simply work from predefined technical requirements. Responsibilities: Design and develop business-critical applications and services supporting the firm’s middle and back-office functions.Build scalable back-end services, APIs, data platforms and intuitive user-facing applications.Help modernise existing technology, breaking down legacy applications and moving towards more modular, cloud-based architecture.Take ownership of projects throughout the development lifecycle, from initial requirements and architecture through to deployment and production.Work directly with business users to understand complex workflows and translate them into effective technical solutions.Explore opportunities to introduce AI and automation into existing processes and applications.Build reliable, well-controlled systems with a strong focus on data quality, security and operational resilience.Contribute to wider architectural and technology decisions across the engineering function. Requirements: 7+ years of professional software engineering experience within complex, production environments.Strong development experience with C#/.NET and/or Python.Experience building modern full-stack applications, ideally with exposure to frameworks such as Angular or similar.Strong understanding of software architecture, APIs, distributed systems and data modelling.Experience working with relational databases and large financial datasets.Exposure to modern cloud infrastructure, containers and CI/CD environments.Financial services experience, ideally building technology supporting trading, operations, risk, compliance, accounting or related functions.Experience improving or replacing legacy applications would be highly advantageous.Exposure to LLMs, AI tooling or workflow automation would be beneficial but is not essential.Strong communication skills and the ability to work directly with senior business stakeholders.A high level of ownership and an interest in solving complex business problems rather than purely implementing predefined requirements. My client offers a market-leading compensation package alongside excellent benefits. This is an opportunity to join a highly regarded investment firm where engineers are given significant ownership, direct exposure to senior stakeholders, and the opportunity to work on a major technology modernisation programme. To apply, either respond to this advert or send your CV directly to sasha.duquesne@mondrian-alpha.com