Backend C#.NET Engineer II
AI Summary
Design, develop, and maintain scalable C#/.NET backend services and APIs for fintech products, including payment processing, transaction management, and financial reporting, while ensuring security, performance, and regulatory compliance.
About this role
Backend C#.NET Engineer II
Who we are…
At Cavista Technologies, we are redefining what it means to be a technology partner. We collaborate with organizations around the world to deliver custom-built software solutions that drive innovation, performance, and long-term value. Our team is diverse, passionate, and united by a shared mission to create technology that powers possibility. Our people are our greatest asset, and together we deliver results that matter.
We are looking for…
Cavista Technologies is seeking an experienced, innovative C# Backend Engineer passionate about building secure, scalable, high-performing financial solutions. You will play a key role in designing, developing, and maintaining the backend services and APIs that power financial products, digital payments, and customer experiences. Working closely with product, frontend engineering, QA, and other stakeholders, you will support in shaping the technical direction of our platform and drive engineering excellence.
What will you do…
- Design, develop, test, and maintain scalable applications using C# and .NET technologies.
- Build and optimize high-performance APIs, microservices, and backend systems for fintech products.
- Develop solutions for payment processing, transaction management, reconciliations, settlements, and financial reporting.
- Participate in architecture discussions and contribute to technical design decisions.
- Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions.
- Write clean, maintainable, and well-documented code following industry best practices.
- Conduct code reviews and mentor junior engineers to ensure engineering excellence.
- Troubleshoot and resolve production issues while ensuring minimal downtime.
- Optimize system performance, scalability, and security.
- Contribute to CI/CD pipelines and DevOps practices to streamline software delivery.
Qualifications
What you bring...
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field.
- 5+ years of Fintech Experience
- Design, develop, test, and maintain scalable applications using C# and .NET technologies.
- Build and optimize high-performance APIs, microservices, and backend systems for fintech products.
- Develop solutions for payment processing, transaction management, reconciliations, settlements, and financial reporting.
- Participate in architecture discussions and contribute to technical design decisions.
- Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions.
- Write clean, maintainable, and well-documented code following industry best practices.
- Conduct code reviews and mentor junior engineers to ensure engineering excellence.
- Troubleshoot and resolve production issues while ensuring minimal downtime.
REGULATORY CONSIDERATIONS
- Implement backend controls supporting PCI-DSS and secure handling of sensitive input fields.
- Ensures consent flows and data collection UI comply with the Nigeria Data Protection Act (NDPA) 2023.
Additional Information
What you will experience…
- A fast-paced, collaborative, and purpose-driven team environment that empowers you to thrive and grow.
- Opportunities to shape the voice of a global tech brand while working alongside innovative leaders.
- Professional development and leadership support to sharpen your expertise.
- Competitive compensation and a full suite of benefits, including health and wellness programs, and generous paid time off (vacation days, holidays, and birthday leave).
- A culture that values transparency, creativity, and continuous learning.
Skills
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Market data for backend engineer roles
All reports →- Role reportBackend engineer jobs, Sep 2026: new listings up 22.7% in a weekBackend engineer new listings rose 22.7% this week to 481, with 4,949 active roles. Senior positions make up over half. Apply early to new openings.
- SeriesSalary reportsWhat employers publish in job postings, by level and workplace. Not self-reported pay.
- Market overviewState of tech hiring, September 2026: up 4.8%Tech hiring rose 4.8% month over month in September 2026, with 411,122 new listings. Customer support and account executive roles led the growth.