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:

•  Architect and build scalable backend services. Our tech stack is Rails 7, Go, Sidekiq, REST, AWS, Docker

• Ensure the quality and performance of applications to specifications

• Collaborate with cross-functional teams to define, design, and implement new features

• Optimize build and runtime performance of our services and application

• Actively participate in team discussions to drive problem-solving

• Participate in all phases of the development life cycle such as developing, code review, testing, and debugging

• Serve as a Subject Matter Expert (SME) in backend development, providing guidance and mentorship to other team members

• Optimize build and runtime performance of our services and applications, demonstrating a deep understanding of system architecture

What we're looking for:

•  Minimum 4 years of professional work experience as a Software Engineer with a focus on designing and building scalable, distributed systems

• Strong background and expertise in Ruby, demonstrating mastery of language features, performance tuning, and best practices

• Proven experience in building and maintaining high-availability, low-latency systems, ideally in trading, payments, or real-time data environments

• Experience designing systems with fault tolerance, graceful degradation, and disaster recovery considerations

• Excellent communication and interpersonal skills, with the ability to convey complex technical concepts to both technical and non-technical stakeholders

• Experience with REST APIs and WebSocket

• Proven expertise in cloud platforms, specifically Amazon Web Services (AWS), along with proficiency in Docker and Terraform for infrastructure management

• Hands-on experience in building systems using both SQL and NoSQL databases, demonstrating a nuanced understanding of database design and optimization

• Comfortable working in a fast-paced work environment

• You’re organized, proactive and can be your own manager

• Demonstrate a collaborative attitude with a bias toward action

• Advanced understanding and/or experience working in a Cryptocurrency/Blockchain/Fintech/Finance Trading domain preferred

What’s in it for you:

• Friendly and fun start-up work culture

• Convenient work location located in the heart of CBD area

• Generous annual leaves on top of national holidays

• Medical coverage including GP, Specialist, TCM, and more

• Self-care benefits and exciting fitness workshops/webinars

• Vibrant office with a well-stocked pantry

Find out more about Coinhako here https://www.coinhako.com/ and don't forget to visit our Careers Page https://www.coinhako.com/join-us

By submitting your application to us, you consent to the collection, use, disclosure and processing of your personal data in accordance with our privacy policy, which is accessible at https://www.coinhako.com/legal/sg-1/privacy_policy.