Backend Engineer - C# and Dotnet

CAC DH Corporation/Societe DH; Atlanta (GA); Hybrid; USD 110,000 - 160,000; Full time

Benefits offered by this job

Hybrid working framework

Flexible vacation

Well-being programs

Health and retirement benefits

Job summary

Finastra is seeking a Back-End Engineer to design and implement robust backend services, APIs, and data access layers. You’ll work with C#/.NET, TypeScript/Node.js, and Next.js to deliver scalable solutions in a hybrid work environment.

Collaborate across frontend, DevOps, and senior engineers, contribute to code reviews and documentation, and apply best practices while exploring AI-powered applications and enterprise integrations. This role offers growth in a global fintech team.

Qualifications

• Experience building backend services with C#/.NET, TypeScript/Node.js, or equivalent backend frameworks.
• REST APIs, data modeling, and server-side application development.
• Integrating with third party APIs and enterprise systems.
• Strong grasp of object-oriented programming and software design fundamentals.
• Experience using Git/GitHub in a team-based development environment.
• Familiarity with modern web application architectures involving React, Next.js, and backend APIs.
• Exposure and interest in developing AI-powered or large language model-based applications.

Responsibilities

• Design and implement backend services, APIs, and data access layers.
• Develop clean, well-tested, and maintainable code with modern frameworks such as C#/.NET and Next.js.
• Integrate backend services with databases, APIs, and enterprise systems.
• Contribute to code reviews, technical documentation, and engineering best practices.
• Collaborate with frontend, DevOps, and senior engineers to deliver end-to-end features.

Skills

C#/.NET

TypeScript/Node.js

REST APIs

Git/GitHub

React/Next.js

OOP fundamentals

AI/LLM exposure

Tools

Docker

Azure

CI/CD

Job description

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 seeking a Back-End Engineer to design and implement robust backend services, APIs, and processes. This role involves writing clean, maintainable code, collaborating with cross-functional teams, and ensuring high-quality backend architecture that supports scalable applications.

Responsibilities & Deliverables

• Design and implement backend services, APIs, and data access layers
• Develop clean, well-tested, and maintainable code with modern frameworks such as C#/.NET and Next.js.
• Integrate backend services with databases, APIs, and enterprise systems
• Contribute to code reviews, technical documentation, and engineering best practices
• Collaborate with frontend, DevOps, and senior engineers to deliver end-to‑end features

Required Skills & Experience

• Experience building backend services with C#/.NET, TypeScript/Node.js, or equivalent backend frameworks
• Solid understanding of REST APIs, data modeling, and server‑side application development
• Experience integrating with third party APIs and enterprise systems
• Strong grasp of object‑oriented programming and software design fundamentals
• Experience using Git/GitHub in a team‑based development environment
• Familiarity with modern web application architectures involving React, Next.js, and backend APIs
• Exposure and interest in developing AI‑powered or large language model‑based applications

Nice to Have

• Familiarity with cloud platforms such as Azure
• Experience with Salesforce integrations or other enterprise SaaS platforms
• Exposure to Docker and containerized application development
• Familiarity with automated testing and CI/CD practices

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, Culture@Finastra, Proud@Finastra, Disabilities@Finastra, and Women@Finastra—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