Senior Back-end Engineer

Who are we?

At Finastra, we’re a global leader in financial services software, dedicated to expanding access to financial services and shaping what’s next for the industry. Our technology powers mission‑critical solutions across Lending, Payments and Universal Banking, supporting over 7,000 customers, including 80% of the world’s top 50 banks, in more than 110 countries.

What will you contribute?

We are looking for a Senior Back-End Engineer to design and implement robust backend services, APIs, and processes for Flow, Finastra’s Agentic AI platform.

Responsibilities & Deliverables

• Focus on server-side application logic, data access patterns (APIs, databases, integrations), performance, scalability, and ensuring robust, maintainable backend services.
• Write clean, efficient, and maintainable backend code using Python/C#/.NET.
• Implement features, fix bugs, and conduct code reviews to maintain quality standards.
• Maintain and improve codebases and create technical specifications.
• Focus on implementing APIs, services, and backend processes for enterprise applications.
• Collaborate with front-end developers and other stakeholders to ensure seamless integration.
• Implement unit tests to ensure code reliability and maintainability.

Required Skills & Experience

• Expert in python, C#/.NET and OOP fundamentals
• Solid understanding of databases
• Hands‑on experience with container development and deployment using Docker and Kubernetes
• Familiarity with Git and GitHub for version control
• Experience with Development on Azure
• Understanding of common software design patterns
• Experience integrating with LLMs and ML systems
• Experience implementing API endpoints
• Oriented programing and familiarity with SOLID principles.
• Implementing Unit Tests

Implementing Unit Tests

We are proud to offer a range of incentives to our employees worldwide. These benefits are available to everyone, regardless of grade, and reflect the values we stand for:

• Flexibility: Enjoy unlimited vacation, subject to local regulations and business priorities. Benefit from hybrid working arrangements and inclusive policies such as paid time off for voting, bereavement, and sick leave.
• Well‑being: Access confidential one‑to‑one support through our Employee Assistance Program, connect with our network of Wellbeing Champions and Gather Groups, and take part in monthly events and initiatives designed to help you thrive—inside and outside of work.
• Health & Financial Security: Medical, life and disability insurance, retirement plans, lifestyle, and other benefits.* Sustainability: Paid time off for volunteering and donation‑matching opportunities to support causes that matter to you.
• Inclusion: Get involved in our inclusion communities, such as Count Me In, View email address on click.appcast.io, View email address on click.appcast.io, View email address on click.appcast.io, and View email address on click.appcast.io—open to everyone who wants to participate and contribute.
• Career Development: Access online learning and accredited courses through our Skills & Career Navigator tool.
• Recognition: Take part in our global recognition program, Finastra Celebrates, and share your voice through regular employee surveys that help shape our culture and ways of working.
• *Specific benefits may vary by location.

At Finastra, each individual is unique—bringing their own ideas, perspectives, cultural backgrounds, and experiences. We learn from one another, value what makes us different, and create an environment where everyone feels included, supported, and able to be their authentic selves. Be unique. Be exceptional. Help us make a difference at Finastra.

Applicants for this position need to be located in posted location or their immediate surrounding areas. Due to the requirements of this position, this job posting is not available for, and Finastra will not be considering any applicants who currently reside in New York City or California.

At Finastra, our team members are the driving force behind everything we do. We’re building an environment where bold ideas thrive, careers flourish, and innovation is a shared journey. Whether you're a recent graduate ready to shape the future or a seasoned professional seeking your next challenge, you’ll play a pivotal role in delivering software solutions that redefine what’s possible in financial services.

We believe growth is a shared commitment. That’s why we offer a rich ecosystem of learning—from hands‑on training and mentorship to leadership development and industry certifications. You’ll have the freedom to explore new paths, deepen your expertise, and make your mark in a global fintech that’s built for the future. Our career development isn’t just a program—it’s a promise. With access to cutting‑edge tools, a culture of collaboration, and a community that champions your success, you’ll be empowered to lead, challenge, and create meaningful change. Because when we grow together, we innovate together—and that’s how we shape what’s next in finance.

We offer incredible career opportunities and your work in close collaboration with fantastic colleagues globally to develop and launch innovative software solutions for our customers. There is a huge range of engaging projects where you can get stuck‑in and add value whilst taking advantage of our ongoing development opportunities to build and hone your skills in your chosen area. Our perks include paid holidays, flexible working hours, a pension plan, and comprehensive health initiatives. Join us to supercharge your career, collaborate with industry experts, and thrive in a nurturing environment that powers both your professional and personal growth With us, you can grow, innovate, and make a real impact.

At Finastra, we are proud of the wide range of incentives and benefits we offer our employees globally, reflecting our core values: doing well by doing good, putting people first, and open opportunities. We go beyond statutory requirements to maximise our offerings, investing in flexible working policies, personal growth opportunities, and well‑being programmes. Highlights include our Flexible Vacation Policy, inclusive people policies, hybrid working framework, and comprehensive well‑being support through initiatives like the Employee Assistance Program, the wellbeing Champions and our monthly events and initiatives. Additionally, we emphasise sustainability through volunteering time off and donation matching, champion inclusion through multiple employee networks and cultural initiatives, and invest heavily in career and skills development.

Recognition of our employees' efforts is integral, with our global recognition platform and regular employee feedback surveys shaping our inclusive and supportive workplace culture At Finastra, we are committed to creating a workplace where you feel valued and respected. We believe this environment drives innovation and we strive to build a team that reflects the varied backgrounds, perspectives, and experiences of our global ecosystem. This philosophy is at the heart of our culture and the way we work. The company privacy policy can be found here Finastra Privacy Policy