Senior Back-end Engineer (fintech)

Deel Deel · Enterprise · Greece · R&D

Senior Backend Engineer role at Deel, a global payroll and HR platform, focusing on building and enhancing their financial infrastructure, including a cross-border payment system. Requires strong backend development, database, and scalability experience, with a mandatory background in fintech or financial domains and familiarity with compliance-sensitive environments.

What you'd actually do

  1. Collaborate in a Cross-Functional Team
  2. Participate in Product Planning
  3. Develop and Enhance Features
  4. Provide an Exceptional, Customer-Centric Experience
  5. Solve complex fintech problems
  6. Build at scale

Skills

Required

  • OOP best practices
  • SQL guru, particularly with PostgreSQL
  • query optimization
  • data migrations
  • database modeling
  • object-oriented programming principles
  • design patterns
  • designing systems that manage rapid growth and high demand
  • Optimized systems for concurrency, idempotency, and large transaction volumes
  • input validation
  • JWT
  • scaling APIs using queue-based systems
  • 8+ years as a backend or full-stack engineer

Nice to have

  • SaaS products running 24/7 on major cloud vendors
  • serverless architecture on AWS
  • fintech industry challenges and constraints
  • treasury, FX, reconciliation, or accounting software
  • Built or integrated payment gateways, exchanges, or ledgers
  • compliance and audit-focused systems like SOC2, SOX

What the JD emphasized

  • Professional experience in fintech or financial domains
  • Worked in or built systems for companies like Wise, PayPal, Stripe, Adyen, Coinbase, Revolut, or similar
  • Familiarity with compliance-sensitive environments