Backend Engineer - Java (Crypto)
IO Tech Solutions Limited · Remote — Hong Kong
Remote
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Sign inJob overview
- Location
- Remote — Hong Kong
- Workplace
- Remote
- Employment type
- Full-time
- Experience level
- Senior
- Date posted
- Oct 11, 2026
- Last checked at the source
- Oct 11, 2026
- Job source
- via Himalayas
Responsibilities
• 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.
Requirements
• 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.
Skills
- Java
- React
- REST APIs
- Kafka
- Google Cloud
- Communication
Visa and relocation
The posting doesn't mention visa sponsorship. Check the original posting or ask the company.
The posting doesn't mention relocation.
Job description
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).
Originally posted on Himalayas
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Apply on the original site ↗Job source: via Himalayas
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