Senior Fullstack Developer (for our partner group)

Remote

Full Time

Experienced

WHAT YOU'LL BE WORKING ON

Backend (Kotlin): Financial core: ledger, settlement, payouts, pricing, reserves
Integrations: payment providers, KYC/KYB, banking (SEPA/SWIFT)
Webhooks & event-driven processing
REST APIs for product and internal tools
BPMN workflows (Camunda): onboarding, AML, disputes, settlements
Compliance flows: transaction monitoring, SAR
Frontend (Next.js): Merchant portal (transactions, payouts, dashboards, onboarding)
Internal ops/admin tools (AML, disputes, treasury, compliance)
Developer portal (API docs, sandbox, integration guides)
Reconciliation across multiple systems (gateway → processor → bank)
Reporting: regulatory, scheme, financial
Fully automated testing (unit / integration / e2e, no manual QA).

OUR TECH STACK

Backend: Kotlin, Spring Boot 3, Spring Modulith
Frontend: Next.js 15, TypeScript, shadcn/ui, Tailwind CSS
Database: PostgreSQL 18 (RDS, pgvector, JSONB, FTS)
BPMS: Camunda 8 (Zeebe, BPMN, DMN)
Auth: Okta
Infra: AWS, EKS, Docker, GitLab CI/CD

WHAT YOU NEED TO SUCCEED IN THIS ROLE

At least 4-5 years of experience with Java/Kotlin (Spring Boot)
Solid experience building REST APIs and backend systems
Hands-on experience with React / Next.js and TypeScript
Strong knowledge of PostgreSQL (queries, indexing, migrations)
Understanding of event-driven architecture, webhooks, async processing
Experience with API design (versioning, idempotency, error handling)
Experience with CI/CD and Git workflows
Full-stack mindset (not backend-only)
Ability to work with system design and architecture decisions
Proactive approach and ownership (doesn’t wait for tasks, drives solutions)
Testing ownership
AI fluency: actively using AI tools in daily engineering work (not just basic usage)
Comfortable in a fast-paced startup environment, actively contributing ideas and driving solutions end-to-end rather than just executing tasks
Good English level (at least A2-B1) and fluent russian

WHAT WE OFFER

Remote work (EU timezone or close to it)
Competitive compensation above typical market benchmarks for similar roles
Direct collaboration with CTO and CPO
Fintech domain: card payments, compliance, settlement - deep immersion
Paid vacation and sick leave
Company-provided equipment (Apple devices)
Small, highly engaged team with strong ownership
Real opportunity to influence product decisions and bring your ideas to life
Fast-paced environment with minimal bureaucracy

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Have you personally made architectural or system design decisions in production systems (APIs, integrations, event-driven flows, reliability, data modeling)?*

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Senior Fullstack Developer (for our partner group)

WHAT WE OFFER

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