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  • Posted: May 21, 2026
    Deadline: Not specified
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  • Quidax is the simplest and most secure way to buy and sell bitcoin, ethereum, ripple and other altcoins.
    Read more about this company

     

    Software Engineer (Java_Spring Boot)

    ​​​​​​About the Role

    • We're hiring a Mid-Level Java, Spring Boot Engineer to work on the core backend systems that power how customers trade, move money, and interact with the Quidax platform. You'll join a team working on the flows that matter most: APIs, integrations, transaction processing, and the reliability of systems that real customers depend on every day. It's a great role for an engineer who's ready to go deeper, take real ownership, and grow fast in a fintech environment.

    What You’ll Be Owning

    Learn and Contribute

    • First 30 days: Get across the core Java/Spring Boot services, understand the critical flows, and ship your first meaningful fix.
    • By month 3: Own specific features or services end to end, with support from the team where needed.
    • By month 6: Independently investigate and resolve reliability issues across APIs, integrations, and transaction flows.

    Reliability and Code Quality

    • Reduce recurring issues: stuck transactions, failed callbacks, unclear states, and manual escalations.
    • Improve test coverage across critical flows and leave every area you touch cleaner than you found it.
    • Add observability where it's weak: better logging, alerts, and debugging hooks.

    Team and Growth

    • Participate in code reviews, share what you learn, and support engineers around you.
    • Grow your understanding of transaction heavy systems: idempotency, retries, state machines, and reconciliation.

    Biggest Challenges You’ll Tackle

    • Working on backend systems where failures have real customer impact.
    • Debugging complex, transaction heavy flows that aren't always well documented.
    • Balancing new feature work with improving the stability of existing systems.
    • Learning fintech and crypto infrastructure concepts on the job and applying them quickly.

    What We’re Looking For

    Must-haves

    • 3 to 5 years of Java Spring Boot backend experience in production environments.
    • You write clean code, debug with patience, and care about how your work affects real users.
    • Comfortable with REST APIs, background jobs, database design, testing, and debugging.
    • Methodical debugger: you trace flows, read logs, and find the real root cause.
    • You improve code incrementally without defaulting to a full rewrite.
    • Bonus: Experience in fintech, payments, crypto, or transaction heavy backend systems.

    Nice to Haves

    • Familiarity with transaction concepts: idempotency, retries, reconciliation, state machines.
    • Experience working in a remote startup environment.
    • Any exposure to crypto exchanges, payment providers, bank integrations, or Java ecosystem tools like Kafka, JPA, or Hibernate.

    Check how your CV aligns with this job

    Method of Application

    Interested and qualified? Go to Quidax on quidax.factorialhr.com to apply

    Build your CV for free. Download in different templates.

  • Send your application

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