Senior Backend Engineer

Join to apply for the Senior Backend Engineer role at Rain . Rain is the fastest-growing earned wage access (EWA) fintech in the U.S., serving 2.5 million employees and backed by top investors like QED and Prosus. We've raised nearly $400M in funding—including the largest Series A in fintech history—and just closed our Series B to fuel our next stage of hypergrowth. We are looking for a Backend Software Engineer with some Golang experience. This position is remote. The candidate will manage various areas of our backend platform, including API integrations with 3rd-party vendors and partners. As a Backend Engineer with our User Tribe, you will play a central role in making it easier for users to access Rain and build products that help users maintain positive cash availability. You will work with our international product and engineering teams to manage a robust digital wallet that enables users to transact through seamless account creation and frictionless employer linking. Our ideal candidate is excited to tackle tough technical challenges and contribute to our strategic thinking. Responsibilities Translate product requirements into robust technical solutions, recommend alternative approaches, and lead engineering efforts to meet targets. Design and implement reliable systems in a fully distributed micro-services architecture. Build and maintain integrations with 3rd-party vendors and partners. Design and implement highly available RESTful APIs supporting web and mobile applications. Create reusable code and libraries to foster collaboration and scalability. Enforce observability best practices using logging, metrics, and alerting systems. Create and maintain technical documentation including architecture, APIs, workflows, and configurations. Monitor systems for performance and scalability opportunities. Collaborate effectively across teams to align priorities and requirements throughout the development lifecycle. Skills and Qualifications 5 years of Software Development experience. Bachelor's degree in Computer Science or equivalent. Proficient in back-end languages such as Go / Golang, Java, Python, C++. Strong experience with RESTful APIs, SQL and NoSQL databases, and designing scalable distributed systems. Excellent collaboration and communication skills. Knowledge of cloud platforms (AWS/Azure/GCP), Docker, Kubernetes, ECS. Proactive project ownership and experience with agile methodologies. Experience with message queuing systems like Kafka, RabbitMQ, or Flink. Experience with CI/CD frameworks such as GitLab CI and GitHub Actions. Rain is committed to diversity and equal opportunity employment. For accommodations due to disability, contact us at . Senior level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology Referrals increase your chances of interviewing at Rain by 2x. J-18808-Ljbffr

Location: João Pessoa, Paraíba, BR

Posted Date: 7/5/2025