Backend Engineer, Mid-Level (AWS, Python & Node.js and/or SpringBoot)
Job type
Full Time
Qualification
BA/BSc/HND
Experience
5 years
Location
Nairobi
Deadline
Not specified
Job description & requirements
The Role
- Zeno is building the backend platform that powers our EV battery-swapping ecosystem — covering vehicle telemetry, swap station orchestration, wallet & payment transactions, and fleet partner management. We're looking for a Backend Engineer to build and maintain services across our microservices stack, deployed on AWS using Python and Node.js.
What You'll Do
- Develop and maintain backend microservices — Vehicle Service, Swap Station Service, Transaction Management Service, and Wallet Management Service — using Python (FastAPI/Flask) and Node.js (Express)
- Build and maintain RESTful APIs consumed by the App and Web clients
- Work with PostgreSQL/RDS for core domain data (customers, vehicles, fleet partners, battery packs, swap stations) and ClickHouse for vehicle and swap-station telemetry
- Implement and maintain asynchronous, event-driven workflows
- Contribute to wallet/ledger transaction processing with attention to idempotency and data correctness
- Deploy and manage services on AWS (ECS, RDS, S3, CloudWatch)
- Write and maintain data-ingestion logic for high-volume telemetry data
- Participate in code reviews, write unit/integration tests, and follow engineering best practices
- Debug and resolve production issues, including monitoring via CloudWatch Logs and handling dead-letter queue (DLQ) messages for failed transactions
- Collaborate with senior engineers on system design discussions and contribute to technical documentation
- Support CI/CD pipeline maintenance (GitHub Actions)
What You'll Bring
- 5+ years of experience in backend software development
- Strong proficiency in Python and/or Node.js
- Experience building and consuming RESTful APIs
- Working knowledge of AWS services (ECS, RDS, S3, SQS/SNS, CloudWatch)
- Experience with relational databases (PostgreSQL/MySQL); exposure to time-series/columnar databases (ClickHouse) is a plus
- Understanding of asynchronous/event-driven architecture patterns
- Familiarity with Git and collaborative development workflows
- Solid understanding of software testing practices (unit, integration)
- Good problem-solving and debugging skills
- Strong communication and collaboration skills
Nice to Have
- Experience with Docker and container orchestration
- Exposure to Redis for caching or live data use cases
- Experience with message queue systems (SQS, SNS, RabbitMQ)
- Familiarity with financial/wallet/ledger systems
- Experience in IoT, telemetry, or connected-device platforms
- AWS Cloud Practitioner or Associate-level certification
- Exposure to microservices architecture and API gateway/service mesh (Envoy)
Benefits
- Hands-on experience building backend systems for a real-time EV mobility platform
- Exposure to telemetry pipelines, wallet/payment systems, and fleet management at scale
- Mentorship from senior engineers
- Growth path toward senior/lead backend engineering roles
- Company-sponsored healthcare plan
- Join a world-class team of engineers, operators, and entrepreneurs from across the globe who are part of the inevitable trillion-dollar transition of two-wheelers to electric!
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