Senior/Staff Java Engineer

About Quidax

Quidax is where money meets limitless possibilities. We’re making it super easy for individuals, businesses, and fintechs in Africa to access crypto. Our goal? Providing real value for our customers today while shaping the future of money.

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

Reporting Line

You’ll report to the Engineering Manager. You’ll jam regularly with senior engineers, product managers, and mobile/frontend teammates to build the backbone of our infrastructure.

Why Quidax
At Quidax, we’re building the future of finance in Africa through crypto. You’ll have the freedom to innovate, the space to lead, and the backing to build something that truly scales. If you’re ready to build an engineering org that delivers excellence at scale—let’s talk.

What’s In It For You
When you join Quidax, you’re not just taking a job — you’re jumping into a community that’s bold, remote-first, and building for the future. Here’s what you get: