Quidax is the simplest and most secure way to buy and sell bitcoin, ethereum, ripple and other altcoins.
About the Role
- We’re hiring Senior / Staff-level Java Engineers who love building performant backend systems that run 24/7 and power millions in crypto and fiat transactions. You'll be joining the core backend team that underpins every Quidax product — from deposits and swaps to merchant payments and our API rails. It’s a high-trust, high-impact role for engineers who want to do the best work of their careers.
What You’ll Be Owning
Build & Scale Core Services
- First 30 days: Understand our architecture and take ownership of one core service (deposits, swaps, or settlements)
- By month 3: Lead improvements that reduce latency or improve reliability across one critical flow
- By month 6: Design and implement a new microservice (or refactor an existing one) that handles high-volume traffic across fiat and crypto rails
- Articulate a long term vision for maintaining and scaling our backend systems and the teams running them.
Solve for Performance, Reliability & Observability
- By month 2: Contribute to platform observability initiatives
- By Q1 2026: Drive cross-team initiative to scale platform performance across all critical user flows
Collaborate with Product & Engineering Teams
- Actively lead and participate in architecture reviews, sprint planning, and retros
- Pair with frontend, mobile, and devops engineers to solve cross-functional challenges
- Support junior engineers via reviews, mentoring, and documentation
Biggest Challenges You’ll Tackle
- Here’s what will keep you up at night, but you will want to get it solved like yesterday
- Architect and develop distributed systems
- Provide technical structure to teams and work closely with management and stakeholders to define strategic roadmaps
- Manage individual projects priorities, deadlines and deliverables with your technical expertise
- Write high quality, well tested code to meet the needs of your customers
- Shipping often while keeping a high bar for quality and security
What We’re Looking For
- You write clean code. You sweat the small stuff when it matters. You obsess over system design. And you care about impact.
- 8+ years in software engineering, primarily working with Java 8+ & SpringBoot in production
- Experience architecting and developing solutions to ambiguous problems with significant impact
- Experience writing and maintaining highly scalable and performant code
- Strong grasp of system design, microservices architecture, and distributed systems
- Proficiency in relational databases (MySQL)
- Bonus if you’ve worked in fintech, crypto exchanges, or high-availability systems
Nice-to-haves:
- Familiarity with blockchain integrations or custody wallets
- Experience working in a remote startup environment
- Contributions to open-source projects or technical writing
Method of Application
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