Senior Backend Engineer

Rain is currently seeking a seasoned software professional to join their distributed team as a Senior Backend Engineer. As a pioneer in the AI-driven financial health space, Rain is committed to improving the fiscal wellbeing of over 3.5 million employees globally, including those at major international brands like T-Mobile, Marriott, and McDonald’s. This is a fully remote opportunity for a developer who thrives in environments where engineering challenges directly impact real-world financial outcomes.

About the role

In this position, you will be a cornerstone of the technical team, responsible for the architecture, development, and ongoing maintenance of the backend infrastructure that powers their financial platform. You will work closely with cross-functional groups, including product managers and front-end engineers, to translate complex requirements into robust, scalable services.

The company places a high premium on performance and reliability. As a senior member of the team, you will be expected to do more than just write code; you will be tasked with identifying performance bottlenecks, debugging mission-critical systems, and ensuring that the platform remains responsive as it continues to scale. Mentorship is also a key component of this role, as you will provide guidance to junior engineers, contributing to a high standard of code quality through rigorous peer reviews and architectural discussions.

Your daily contributions will focus on evolving the backend ecosystem to support Rain’s mission. Specific responsibilities will include:

• Designing and deploying scalable backend services that support the AI Financial Health Platform.
• Collaborating with multi-disciplinary squads to ship new features from inception to production.
• Proactively monitoring system responsiveness and implementing optimizations to prevent downtime.
• Diagnosing and resolving complex technical issues across the software stack.
• Conducting detailed code reviews to maintain high quality and consistency across the codebase.
• Supporting the professional growth of junior team members through technical mentorship.

What they're looking for

To succeed in this role, you should be a self-starter who is comfortable with the autonomy that comes with a remote-first culture. The technical bar is high, and the company is looking for a developer who understands the intricacies of distributed systems. Key requirements include:

• Substantial experience in backend development, with a strong preference for candidates proficient in Golang.
• A deep understanding of database design, management, and optimization.
• Hands-on experience with cloud-native infrastructure, specifically AWS or Azure.
• Proven expertise in designing and maintaining microservices architectures.
• Strong analytical skills paired with a collaborative, communicative mindset.

For a South African software engineer, moving into a senior backend role at an international firm like Rain typically offers a highly competitive compensation package, often benchmarking against global standards in US Dollars (USD) or Euros (EUR). In the local market, Senior Backend Engineers with these specialised skill sets—particularly in Golang and microservices—are in high demand. If you are currently working for a local enterprise or agency, this represents a significant shift toward product-focused development. Professionals in this space often progress into Lead Engineer, Staff Engineer, or Engineering Management roles. Because the position is remote, ensure your home workspace is optimised for high-bandwidth connectivity and that you are prepared for time-zone collaboration if the wider team operates across international shifts.

• Proven experience with backend development (Golang preferred)
• Strong understanding of database technologies
• Familiarity with cloud services (e.g., AWS, Azure)
• Experience with microservices architecture
• Excellent problem-solving skills and a collaborative attitude