Software Development Engineer Backend
Transak helps developers integrate fiat-to-crypto payment solutions that allow users to buy and sell crypto directly within web3 applications.
Maintainer signals as of 8/14/2026
Funding history
Projects
About Transak
Transak helps developers onboard users from fiat to crypto through API-driven payment solutions that support transactions in multiple countries. With it, you can integrate fiat on-ramps, enable direct smart contract interactions with fiat, and access payment methods across multiple blockchains. Transak reduces the complexity of crypto onboarding for web3 applications.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You build, test, and maintain RESTful APIs and backend services with Node.js. You model data in MongoDB, use Redis for caching, queues, and rate limiting, and contribute clean, documented code to a microservices environment. You write unit and integration tests, review code, debug production issues, follow secure coding practices, collaborate with engineering and product partners, estimate and deliver tasks, integrate feedback, and improve the codebase while developing distributed systems and asynchronous communication skills.
Requirements
- 2–5 years of backend development experience
- Hands-on experience building APIs with Node.js
- Working experience with MongoDB
- Working experience with Redis
- Exposure to a microservices architecture
- Fundamentals in data structures and algorithms
- Problem-solving ability
- Product thinking
- Ability to understand user and business problems
- Ability to break down ambiguous requirements
- Ability to evaluate trade-offs and propose practical solutions
Responsibilities
- Build, test, and maintain RESTful APIs and backend services in Node.js
- Model data in MongoDB
- Use Redis for caching, queues, and rate limiting
- Contribute clean, readable, and documented code to microservices
- Write unit and integration tests
- Participate in code reviews
- Debug, profile, and fix staging and production issues
- Follow secure coding practices
- Understand product and business context
- Break down tasks and provide reliable estimates
- Ship iteratively
- Work with senior engineers on design
- Integrate feedback
- Coordinate with frontend, product, and backend pods on shared contracts
- Learn distributed systems concepts and asynchronous communication patterns
- Improve the codebase
