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Open nowFirst seen 33 hours ago

Backend Engineer - Java (Crypto)

IO TECH SOLUTIONS LIMITED787 open roles

Where
Hong Kong Island, Hong Kong SAR, Hong Kong
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Your applicationOpen nowBackend Engineer - Java (Crypto)IO TECH SOLUTIONS LIMITED · Hong Kong Island, Hong Kong SAR, Hong Kong

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on IO TECH SOLUTIONS LIMITED's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

11.5% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.0%1 day
  2. 4.3%3 days
  3. 11.5%7 days
  4. 18.1%14 days
  5. 35.6%30 days
  6. 44.6%60 days
This job: first seen 33 hours ago

The posting

What you'll do

  • Design, build, and maintain core Java services and APIs that power custody and asset-management workflows with emphasis on correctness, availability, scalability, and performance.
  • Integrate internal modules and external services into a unified platform while maintaining data integrity and reliable inter-service communication.
  • Produce clean, well-documented, testable code and set quality standards through code reviews and engineering best practices.
  • Troubleshoot and resolve issues in distributed systems using observability tooling (health checks, metrics, tracing, logging) to identify and eliminate bottlenecks.
  • Collaborate with product managers, designers, security, and other engineering teams to translate product requirements into secure, maintainable technical designs.
  • Contribute to reliability and incident-response processes, including post-incident analysis and remediation.

What you'll bring

  • 4+ years of software engineering experience delivering production-grade systems in high-stakes or regulated environments.
  • Expert-level proficiency in Java and familiarity with the JDK internals.
  • Hands-on experience with microservice architectures, RESTful APIs, and messaging systems (e.g., Kafka).
  • Strong systems-design skills with a security-first mentality and proven experience building fault-tolerant systems that are supported in production.
  • Solid testing mindset — unit, integration, and end-to-end testing strategies and automation.
  • Clear communicator who can explain technical concepts to both technical and non-technical stakeholders across distributed teams.
  • A sense of ownership and willingness to drive features end-to-end.

Nice to have

  • Experience with digital assets, blockchain protocols, custody solutions, or traditional financial services.
  • Familiarity with application/network security best practices and secure coding patterns.
  • Experience using AI tooling to accelerate development workflows.
  • Experience with cloud providers, especially Google Cloud Platform (GCP).
  • Front-end experience with React (for cross-functional collaboration).
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  1. A CV for this posting

    Written against IO TECH SOLUTIONS LIMITED's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on IO TECH SOLUTIONS LIMITED's form

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    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

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  5. Reply with AI

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    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
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