Rain · 3 weeks ago
Senior Backend Engineer - Enterprise
United States
Full-time
Remote
Senior Level
5+ years expRain is the fastest-growing earned wage access (EWA) fintech in the U.S. They are seeking a Senior Backend Engineer to manage various areas of their backend platform, focusing on API integrations and data ingestion. The role involves collaborating with product and engineering teams to enhance financial wellness for employees by optimizing backend systems and services.
BlockchainCryptocurrencyDecentralized Finance (DeFi)FinTechWeb3
Responsibilities
Translate product requirements into robust technical solutions, recommend alternative approaches, and lead engineering efforts to meet ambitious targets
Design and implement reliable systems and applications 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 user-facing web and mobile applications
Focus on creating reusable code and libraries that ensure scalability for future projects
Enforce observability best practices, leveraging tools like logging, metrics, and alerting systems
Create and maintain detailed technical documentation (architecture designs, APIs, workflows, and system configurations)
Continuously monitor systems for opportunities to maximize performance and scalability
Qualification
Required
You have at least 5 years of professional experience as an engineer
You have a strong ability to take ownership of projects, driving initiatives from concept to completion, while proactively identifying challenges and solutions
You have excellent cross-functional collaboration and communication skills
You're familiar with complex large scale distributed systems
Proficient in backend languages: Go/Golang, Python, and/or C++
Strong expertise in designing and developing RESTful APIs
Expertise in SQL and NoSQL database technologies, including data model design and optimization
Proven experience at building reliable and scalable user-facing applications
Proficiency in message queuing systems such as Kafka (preferred), RabbitMQ, or Flink
Familiarity with Cloud technologies: AWS/Azure/GCP, serverless, Docker, Kubernetes, ECS among others
Effective release management experience for ensuring zero downtime and experience with CI/CD frameworks such as Gitlab CI and Github actions
Preferred
Proficiency in message queuing systems such as Kafka (preferred), RabbitMQ, or Flink
Company
Rain
Rain is a stablecoin infrastructure platform offering wallets and global transfers through a unified API for enterprises and neobanks.
51-200 employees
H1B Sponsorship
Rain has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2023 (1)
2022 (1)
2021 (1)
Funding
Current Stage
Growth StageTotal Funding
$332.5MKey Investors
ICONIQ CapitalSapphire VenturesNorwest
2026-01-09Series C· $250M
2025-08-28Series B· $58M
2025-03-24Series A· $24.5M
Leadership Team
Farooq Malik
Co-Founder and CEO
Charles Yoo-Naut
Co-Founder and CTO
Recent News
2026-01-12
2026-01-11
Company data provided by crunchbase