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From the employer's careers site First seen 1 Nov 2026

Senior Engineer - Payment & Wallet

Coinhako Singapore senior full-time

The employer hasn't listed a salary.

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Description

We are looking for a Senior Engineer to join our Payments & Wallet team, also known as PAW, which handles asset management, compliance, and On-chain Services & Integrations at Coinhako.

In this role, you will be responsible for designing, developing, and maintaining high-performance services that power our payments and wallet infrastructure.

Responsibilities:

  • Architect and build scalable backend services using Rails 8, Go, Sidekiq, REST, AWS, and Docker;
  • Design and build high-volume APIs used by our frontends and external traders;
  • Ensure the long-term quality of the code and drive decisions related to the architecture of production systems;
  • Manage and maintain custody solutions for digital assets, ensuring the highest level of security and compliance;
  • Collaborate with other engineers, product managers, and designers during various product development stages;
  • Improve engineering standards, tooling, and processes.

Requirements:

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or related field;
  • Understand good practices of building and working with APIs;
  • 5+ years of building scalable distributed systems with a strong background in Ruby; Go is a plus;
  • Comfortable with ambiguity and scoping solutions with your teammates;
  • Organized, proactive, and able to manage yourself;
  • Knowledge of cryptography and security principles in blockchain, as well as compliance and regulatory frameworks for cryptocurrency.

Benefits:

  • Friendly and fun start-up work culture;
  • Convenient work location 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.

Skills

Required

  • Ruby
  • Go
  • Rails 8
  • Sidekiq
  • REST
  • AWS
  • Docker
  • cryptography
  • blockchain
  • security principles
  • compliance and regulatory frameworks

Ready to apply?

You apply with the employer directly. Their original posting is here: https://jobs.ashbyhq.com/coinhako/d1600f51-72c9-4bf8-ab8e-98d8f46ce56e

Apply on Coinhako