Mid-Level Rails 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 a Mid-Level Rails Engineer to work on RAMP, our on-ramp/off-ramp product that helps users move money in and out of crypto. You'll join a focused team working on the flows that matter most: deposits, withdrawals, partner integrations, and reconciliation. 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 & Contribute

• First 30 days: Get across the RAMP codebase, understand the core flows, and ship your first meaningful fix.


• By month 3: Own specific features or flows end to end, with support from the team where needed.


• By month 6: Independently investigate and resolve reliability issues across deposits, withdrawals, and partner callbacks.

Reliability & 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 & 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.

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Must-haves

• 3 to 5 years of Rails backend experience in production environments.


• You write clean code, debug with patience, and care about how your work affects real users.


• Comfortable with 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 on-ramp/off-ramp products.

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, or bank integrations.

Reporting Line

You'll report to the RAMP Engineering Manager and work closely with the RAMP Product Manager on priorities, user problems, and what gets built next. Day to day, you'll collaborate with design, compliance, operations, support, and finance, as well as external partners.

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:

Fair Pay + Ownership

• Competitive salary based on your skills and experience; annual merit-based reviews to keep your growth visible and rewarded

Growth That’s Real

• Annual performance reviews + clear promotion cycles; recognition for great work, from shoutouts to milestone rewards


• Personal development fund (courses, books, conferences); study leave so you can keep learning

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Work That Works For You

• Fully remote forever + flexible working hours

Time Off That Respects Life

• Unlimited paid time off + Nigerian national holidays


• Parental, sick, compassionate, and life event leave; we show up for you

Connection That Feels Real

• Quarterly remote team hangouts + annual offsite; interest-based communities (SIGs)


• Regular engagement surveys; your voice matters


• Health & life coverage in select locations

TL;DR:
You’ll do meaningful work, grow fast, and have the flexibility to live your best life — all while building something big with people who care.

Let’s build the future of finance together

How to apply:

We love seeing applications that speak directly to us. It’s easy for your application to get lost in a sea of generic ones, especially when we’re sorting through dozens of them. So, make yours stand out! Show us your personality, your passion, and why you’re the perfect fit. We appreciate the effort it takes to create something thoughtful and unique.

What our hiring process looks like

It’s a three-step process.

1. First Connect (with the Recruiter) - 30 mins
Let’s talk about your experience, your story, and how you might fit at Quidax.

2. Technical Chat - 120 mins
Talk us through your real wins, show us how you solve problems, live with the team.

3. Culture Chat - 45 mins

You get the change to meet members of our leadership team and y’all can talk shop.

Stay connected with Quidax through LinkedIn and Instagram for the latest updates.