Summary

Coinhako’s Trading Experience team is growing, and we’re hiring a Senior Backend Engineer who’s excited to build and scale the systems behind a seamless trading journey. You’ll work closely with product, engineering, and operations to deliver smooth execution, reduce friction, and elevate the overall trading experience. If you thrive in a fast-paced environment and want your work to make a real impact on how people trade digital assets, this role is for you.

What you'll be doing:

1.  Architect and build scalable backend services. Our tech stack is Rails 7, Go, Sidekiq, REST, AWS, Docker
2. Ensure the quality and performance of applications to specifications
3. Collaborate with cross-functional teams to define, design, and implement new features
4. Optimize build and runtime performance of our services and application
5. Actively participate in team discussions to drive problem-solving
6. Participate in all phases of the development life cycle such as developing, code review, testing, and debugging
7. Serve as a Subject Matter Expert (SME) in backend development, providing guidance and mentorship to other team members
8. Optimize build and runtime performance of our services and applications, demonstrating a deep understanding of system architecture

What we're looking for:

1.  Minimum 4 years of professional work experience as a Software Engineer with a focus on designing and building scalable, distributed systems
2. Strong background and expertise in Ruby, demonstrating mastery of language features, performance tuning, and best practices
3. Proven experience in building and maintaining high-availability, low-latency systems, ideally in trading, payments, or real-time data environments
4. Experience designing systems with fault tolerance, graceful degradation, and disaster recovery considerations
5. Excellent communication and interpersonal skills, with the ability to convey complex technical concepts to both technical and non-technical stakeholders
6. Experience with REST APIs and WebSocket
7. Proven expertise in cloud platforms, specifically Amazon Web Services (AWS), along with proficiency in Docker and Terraform for infrastructure management
8. Hands-on experience in building systems using both SQL and NoSQL databases, demonstrating a nuanced understanding of database design and optimization
9. Comfortable working in a fast-paced work environment
10. You’re organized, proactive and can be your own manager
11. Demonstrate a collaborative attitude with a bias toward action
12. Advanced understanding and/or experience working in a Cryptocurrency/Blockchain/Fintech/Finance Trading domain preferred

What’s in it for you:

1. Friendly and fun start-up work culture
2. Convenient work location located in the heart of CBD area
3. Generous annual leaves on top of national holidays
4. Medical coverage including GP, Specialist, TCM, and more
5. Self-care benefits and exciting fitness workshops/webinars
6. Vibrant office with a well-stocked pantry

Skills

• Communications Skills
• Database Management
• Development
• Software Engineering
• SQL
• Team Collaboration