Senior Backend Engineer (Fintech)

TL;DR

Senior Backend Engineer (Fintech): Building resilient, secure, and scalable financial systems, focusing on availability, resiliency, security, performance, and cost. Focus on refactoring existing services, performance tuning, and reliability enhancements by strenghtening test automation and CI/CD.

Location: Poland remote

Company

hirify.global is a global leader in liquidity performance that empowers CFOs, Treasurers and IT leaders to connect, protect, forecast and optimize their liquidity.

What you will do

• Co-design service and API architecture across Java and Node.js stacks with a focus on availability, resiliency, security, performance, and cost.
• Deliver end-to-end features: refine requirements with Product Owners, implement, test, and review code.
• Improve existing services via refactoring, performance tuning, and reliability enhancements.
• Strengthen test automation (unit, integration, contract, E2E) and CI/CD.
• Mentor engineers and contribute to engineering standards and documentation.
• Support DevOps practices: containerization, deployment, and observability.

Requirements

• 7+ years of professional backend development overall.
• 5+ years in Java with Spring Boot ecosystem.
• 3+ years in TypeScript with Node.js (Express or Nest.js).
• Production experience designing and operating scalable, secure services.
• Strong understanding of RESTful API design, versioning, and error handling.
• Effective communication in English; ability to read/refine user stories.

Nice to have

• Basic knowledge of React frontends (component model, hooks, consuming REST APIs).
• Experience in payments, finance, or risk domains.
• Multi-tenant SaaS and compliance experience.

Culture & Benefits

• Distributed teams in France and Poland; Agile (Scrum/Kanban).
• Stable product, clear roadmap, and continuous improvement culture.
• 200+ motivated engineers, QA, and product colleagues collaborating across squads.