Full Stack Product Engineer

Sadapay; Karachi Division; On-site; PKR 13,351,877 - 20,027,816; Full time

Benefits offered by this job

USD-Denominated Salary

Hybrid Work Culture

Flexible Leave Policy

Comprehensive Insurance Coverage

Provident Fund Contributions

Technology and Resources

Job summary

SadaPay is building a digital-first payments platform in Pakistan. We are seeking a Senior Product Engineer who is backend-anchored, owning features end-to-end from service layer to admin UI and customer app.

You'll work across the Kotlin/Spring backend, Next.js ops tooling, and Flutter/mobile integrations to ship whole slices. You will drive architectural choices, mentor peers, and use AI coding agents daily to write, review, and ship production code.

Qualifications

• Senior backend chops with production ownership
• Experience in Kotlin/Spring or typed JVM backgrounds
• Familiarity with AI coding agents and modern CI/CD workflows

Responsibilities

• Own slices end to end from service layer to admin UI to mobile app
• Build clean, reliable backend services in core monorepo
• Extend Next.js modules and integrate with Flutter/mobile apps
• Use AI coding agents daily to write, review, and ship code
• Make architectural calls and balance scope with customer outcomes
• Maintain quality through RFCs/ADRs and AI-assisted checks

Skills

Kotlin/Spring

Backend engineering

End-to-end ownership

AI coding agents

AWS/Terraform

CI/CD

Tools

Kotlin

Spring

Next.js

Flutter

Job description

About SadaPay

SadaPay is transforming financial services in Pakistan with a digital-first experience that makes managing money simple, transparent, and hassle-free. With over three-quarters of the population still unbanked, we believe financial services need a radical shift. With SadaPay, all you need is a CNIC, a phone number, and a smartphone to get started; no paperwork, no long waits. Our 3 Million+ users have left behind their worst banking frustrations, no hidden fees, free local transfers, and a payment experience that’s actually enjoyable. Pair that with friendly customer service and a vibrant debit card, and suddenly, finance doesn’t just work, it feels fun!

Why is this role important?

SadaPay is one of Pakistan's leading digital wallets. Our engineering team is small and runs at high leverage: every engineer owns real surface area and ships outcomes, not tickets. We work in a Kotlin/Spring service monorepo, a Flutter app, and Next.js operational tooling, and we lean hard on AI to move faster than a team our size usually can. We want a Senior Product Engineer who is backend-anchored and happiest owning a problem end to end, from the service layer to the operational UI to the screen the customer actually taps. You'll work across the whole product, make the product calls, and ship.

As a Sadanaut you will:

• Own slices end to end: Take a feature from a Kotlin/Spring service, through its admin and ops UI, into the app.
• Build the backend: Clean, correctness-critical services in our core/monorepo.
• Work across the stack yourself: Extend the Next.js control modules and include them in the Flutter app wherever your slice needs them. There's no separate front-end or mobile team to hand off to; a product engineer owns every layer of their slice.
• Use AI coding agents daily: Tools like Claude and Cursor are how you write, review, and ship code here, not an occasional helper you reach for now and then.
• Make the calls: Decide what's worth building, push back on scope, and keep your eye on the customer outcome.
• Hold the quality bar through code review: Written RFCs and ADRs, and AI-assisted checks rather than process walls.

What it takes to become a Sadanaut:

• Senior backend chops. Strong in Kotlin/Spring, or a typed/JVM background that transfers cleanly. You've owned production services hands-on.
• End-to-end ownership. You've shipped features all the way to users and made the trade-offs along the way.
• You already ship with AI coding agents. You can walk us through a real workflow you use day to day, not a demo. This is how we work; it isn't optional.
• Care with critical systems. Money, user data, and the awkward edge cases get handled carefully.
• Mobile: Flutter ideally, or native iOS/Android that transfers.
• Web: Next.js / React for ops and admin tooling.
• Fintech, payments, or other regulated systems. It shortens your ramp.
• Comfortable in our CI and cloud setup (AWS/Terraform). You won't own infra, but you'll touch it.

How we work

• Written-first: RFCs and ADRs over standing meetings.
• Small team, high autonomy, real ownership per person.
• AI-assisted engineering at production level, not as a novelty.

Perks of being at SadaPay:

• USD-Denominated Salary: At SadaPay, all salaries are pegged to USD to help protect team members from inflation. If the dollar depreciates against the PKR, you'll always receive a minimum payment equal to your PKR salary.
• Hybrid Work Culture: In locations where we have an office, our teams follow a hybrid work model with 2 days in the office and 3 days remote each week, balancing collaboration, flexibility, and focused work.
• Flexible Leave Policy: We offer a flexible leave policy to support a sustainable work-life balance. We trust our colleagues to manage their work and leave responsibly.
• Comprehensive Insurance Coverage: Every Sadanaut, regardless of grade, receives Medical Insurance (covering both outpatient and inpatient care), including immediate family and parents.
• Provident Fund Contributions: Provident fund contributions are provided to all team members to support their financial growth.
• Technology and Resources: Each colleague receives a laptop and additional resources (relevant to their role) to ensure they can work efficiently and comfortably.

Equal Opportunity Provider:

At SadaPay, we are committed to fostering an inclusive environment where everyone feels welcome and valued. We strive to make every Sadanaut feel comfortable and respected in the workplace. Discrimination of any kind has no place here; instead, we promote a culture of respect and mutual support among colleagues. Our recruitment process is built on fairness and equality for all, irrespective of race, age, gender, color, religion, social status, disability, or ethnicity.

SadaPay is registered as Sadapay Private Limited with the Securities and Exchange Commission of Pakistan (No. 0136598), is regulated by the State Bank of Pakistan, and is a wholly-owned subsidiary of SadaPay Technologies Ltd., registered in the Dubai International Financial Center under commercial fintech license #3263. SadaPay Mastercard debit cards issued pursuant to a license by Mastercard Asia/Pacific Pte. Ltd.

Offices

SadaPay Head Office

SadaPay UAE Office

Unit GA-00-SZ-L1-RT-208, Level 1 Gate Avenue - South Zone, Dubai International Financial Centre, PO Box 507211, Dubai, UAE

SadaPay UK Office

86-90 Paul Street London, EC2A 4NE,
United Kingdom