Fyst

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
• English level at least A2-B1 

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

We're building a company at the intersection of payments infrastructure and data products — combining transaction execution with structured financial data that is enriched, explainable, and ready for both operational and AI-driven workflows.

What You'll Be Working On

• You'll own the company's full technical direction: architecture, reliability, delivery, infrastructure, and the people who make it happen.
• Define and drive architectural strategy, introducing clear engineering governance — RFCs, tech radar, vendor evaluation, and practical risk management — without unnecessary bureaucracy.
• Lead the evolution of a high-load, event-driven platform with a focus on scalability, resilience, and fault isolation.
• Own reliability and incident management: observability, SRE practices, incident response, and postmortem culture — with a goal of better uptime, faster detection, and fewer repeated issues.
• Oversee engineering hiring, performance, and development of tech leads; build a culture of end-to-end ownership and accountability.
• Manage cybersecurity protocols, disaster recovery, and business continuity in collaboration with DevOps.
• Drive infrastructure efficiency, cost control, and continuous performance improvement through centralized observability and clear ownership.
• Act as a bridge between engineering teams and executive stakeholders, ensuring technical decisions align with business goals.
• Champion automation, AI integration, and engineering process optimization.
• Design APIs and integration strategies; establish coding, architectural, and infrastructure standards.

What You Need to Succeed

• Proven experience as a CTO, Head of Engineering, or Principal Architect in a high-load SaaS, fintech, or infrastructure company.
• Deep expertise in distributed systems, event-driven architectures, and microservices — including how they behave at scale in production.
• Strong hands-on development background, especially in Go and Python
• Track record of improving reliability, delivery speed, and infrastructure efficiency (uptime, MTTR, MTTD, release cadence, cloud cost).
• Solid understanding of DevOps, CI/CD, SRE, and incident management at scale.
• Comprehensive technical background across architecture, cloud platforms, security, and distributed systems, with a focus on scalability, reliability, and strategic technology leadership.
• Familiar with PCI DSS compliance and secure system design.
• Skilled at hiring and mentoring strong engineers and tech leads.
• Comfortable with vendor evaluation, negotiation, and tooling decisions.
• You understand how engineering decisions affect revenue, risk, and customer trust.