Y Combinator Senior Backend Engineer
Summary
Designs, builds, and maintains server-side systems, APIs, and databases for a FinTech platform, ensuring scalability, security, and performance.
About the role
As a Backend Developer, you will be responsible for designing, building, and maintaining the server-side logic, database architecture, and APIs that power our products. You will collaborate closely with front-end developers, product managers, and other stakeholders to deliver scalable, high-performance systems that meet the needs of our business.
What you'll do
- Develop and maintain backend systems and services to ensure optimal performance and scalability
- Design and implement RESTful APIs and microservices for our FinTech platform
- Collaborate with front-end developers and product managers to define, develop, and deliver features
- Write clean, reusable, and efficient code, following best practices
- Troubleshoot, debug, and upgrade existing applications as needed
- Ensure the security and integrity of backend systems, data, and APIs
- Participate in code reviews, providing constructive feedback to team members
- Monitor system performance and resolve production issues as they arise
What we are looking for
- 4 to 6 years of experience in backend development [At least 4 years of experience]
- Proficiency in server-side programming languages such as Node.js, NestJS, Express, or Python [JavaScript - Must Have]
- Strong understanding of RESTful API design and development
- Experience with databases such as MySQL, MongoDB, or PostgreSQL, and data modeling
- Familiarity with cloud services like AWS, Azure, or Google Cloud, and DevOps tools such as Docker and Kubernetes
- Proficiency with version control systems like Git
- Understanding of software development best practices, including testing, security, and scalability
- Experience with caching tools such as Redis or Memcached
- Knowledge of unit testing frameworks like Mocha, Chai, Sinon, or Jest
- Excellent problem-solving skills and attention to detail
- Ability to work both independently and collaboratively in a fast-paced environment
- Experience with microservices architecture
- Familiarity with fintech or payment systems
- Knowledge of CI/CD pipelines and automated deployment tools