freehire launches on Product Hunt on 26 August.

Follow →

Junior Java Developer (Backend / Integrations) / IGaming

Summary

Build and maintain Java backend services that integrate payment providers for a fintech PSP hub, using Spring Boot, Apache Camel, AWS, and Kubernetes.

We build a payment-orchestration platform (a PSP hub) that connects merchants to dozens of payment providers. You'll join one of two small backend teams (5 devs each — seniors, a tech lead, and an architect) building and maintaining the integration services that move real money in production.

You'll be mentored by senior developers and backed by strong QA — a great place to see how real-world systems run at scale.

Format: Remote · [Ukraine / EU-timezone overlap] · Full-time
Level: Junior — 0–2 years of commercial Java (strong personal / educational projects count)
English: B1+ (our tooling, docs, and some partners are in English)
What you'll be working with (our environment — you'll grow into it)
Java 23, Spring Boot, Apache Camel
REST APIs, SQS, Redis, PostgreSQL
Cloud & DevOps: AWS, EKS, Terragrunt, Helm, Flux
Monitoring: OpenSearch, VictoriaMetrics, Grafana
GitLab for version control & CI/CD

What we're looking for (the essentials)
Solid Java fundamentals (8+) and a good grasp of OOP
Basic SQL / PostgreSQL
Genuine curiosity about backend, cloud, and DevOps — and eagerness to learn
Good problem-solving, communication, and ownership
Nice to have (bonuses, not requirements — we'll teach the rest)
Hands-on Spring Boot
Apache Camel or message queues (SQS, RabbitMQ, etc.)
Docker / Kubernetes / Helm
GitLab or other CI/CD
Any AWS experience (S3, EC2, …)
Keycloak 26

What you'll do
Build and maintain backend services and provider integrations
Write clean, tested code — with the team's support
Debug issues and improve stability
Learn how we run and deploy on AWS with modern tooling
Collaborate closely with devs, QA, and DevOps; join code reviews and team discussions

How we work / what we offer
Flexible remote schedule
Paid sick leave and vacation
All the equipment you need
Internal events: open discussions, product meetups, soft-skills training
Flat structure, no micromanagement, fast decisions

Hiring process
Intro call (~30 min)
Technical interview
Short live-coding / pairing session
Offer

Ready to grow with a fast-moving team building real fintech infrastructure? Apply and join the journey.