Senior Ruby on Rails Developer
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Job Description
Backend Engineer designing and maintaining services for a fintech payment platform. Utilizing Ruby on Rails to enhance core payment processing systems with a focus on scalability and performance.
Responsibilities:
- Design, develop, and maintain backend services primarily using Ruby on Rails
- Write clean, maintainable, and testable code following best practices
- Participate in code reviews and ensure code quality
- Troubleshoot and resolve issues in existing software
- Improve the performance, reliability and observability of ZAI services
- Collaborate effectively with engineers on product initiatives that span multiple services and languages in our tech stack
- Contribute to the continuous improvement of software development processes
Requirements:
- Min 5 years of professional experience in backend development
- Strong, hands-on experience building production systems with Ruby on Rails
- Solid knowledge of relational databases (e.g., PostgreSQL, MySQL, NoSQL)
- Experience building and consuming RESTful APIs
- Strong problem-solving skills
- Ability to work collaboratively in a team
- Desirable: Experience with Go and/or Java, familiarity with AWS and cloud-native architectures,
- Exposure to high-throughput, low-latency systems.
- Familiarity with CI/CD practices and tools (e.g., BuildKite)
- Experience building distributed systems and working on high-throughput backend services
- Experience with message-driven architectures (e.g. Kafka, EventBridge, SQS)
- Background in fintech, payments, or other regulated environments
Benefits:
- Work from Home
- Weekends Off
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