Senior Java Engineer (Integration Focus)
- We’re building a full-stack fintech platform for any type of online business, combining a gateway, PSP, ISO, Fraud detection, CB prevention alerts, and acquiring capabilities. There are no handoffs, no BS, and just one team that handles everything related to the Payments domain.
- Early-stage, real product, real volume, and the kind of architecture you won’t get to touch inside a big corporation.
- We’re now hiring a Senior Java Developer with a knack for integrations to help define how the system runs at scale. This is a chance to get in early, write foundational code, and ship a real product that handles real money.
Remote Full-Time | Engineer
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job description
WHAT YOU’LL DO
- Design and implement robust integrations with third-party APIs.
- Handle edge cases with care — retries, timeouts, rate limits, malformed data.
- Collaborate with product and partners to define clear requirements and timelines.
- Build internal tools and dashboards to monitor and debug integrations.
- Write clean, well-documented code that’s easy for others to extend.
- Contribute to backend architecture, reviews, and shared service design.
- Jump into core backend services when needed — you're part of a cross-functional team.
- Work closely with the infra team to scale systems reliably.
WHAT WE EXPECT FROM YOU
- Strong experience building backend systems in Java (Spring Boot preferred).
- Comfortable building robust retry logic, fallback mechanisms, and data transformers.
- Familiar with async patterns and stateless service design — you know how to handle parallel calls without overcomplicating things.
- Experience integrating with third-party APIs — REST, gRPC, OAuth, webhooks, you name it.
- Familiar with auth flows, rate limits, and pagination quirks — and how to abstract them away.
Do you want to know some details about this position?
Maryna will help!more details
- Intro call with Talent Acquisition.
- Take-home task.
- Technical interview with our CTO.
- Final interview with our CEO and CTO of the project.
- Reference check.
- Offer stage!
Don’t meet every single requirement?
Apply anyway. We care more about how you think and build than ticking every box.
You might be exactly who we need — even if the title doesn’t fit perfectly.
WHAT WE OFFER:
- Opportunity to shape the future of payments technology from the ground up
- Collaborative startup culture focused on innovation
- 28 business days of paid off
- Flexible hours and the possibility to work remotely
- Medical insurance and mental health care
- Compensation for courses, trainings
- English classes and speaking clubs
- Internal library, educational events
- Outstanding corporate parties, teambuilding.
WHAT WE OFFER:
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