Bjak

Bjak is an innovation-focused technology firm dedicated to developing digital-based products and services, with a primary focus on insurance solutions. The comp

Backend Developer

Location

Spain

Posted

11 days ago

Salary

0

Seniority

Senior

Bachelor DegreeEnglish

Job Description

Backend Developer

Bjak

• Build backend services and APIs for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC and risk flows. • Design reliable systems that can support real customer transactions, operational workflows and future financial products. • Integrate with internal systems, financial partners, payment providers, AI services and third-party platforms. • Own backend quality across reliability, security, latency, observability, data integrity and incident handling. • Work with product, frontend, mobile and AI teams to launch features quickly and safely. • Improve existing systems by simplifying flows, removing manual work and automating repeatable processes.

Job Requirements

  • Strong backend engineering experience in production systems.
  • Good understanding of APIs, databases, authentication, authorization, queues, jobs, events and integrations.
  • Experience building services used by real customers or internal operations at meaningful scale.
  • Strong debugging, reliability, security and data quality mindset.
  • Able to make practical trade-offs between speed, correctness, scalability and maintainability.
  • Fintech, payments, banking, wallet, KYC, fraud or risk experience is a strong plus, but not required if fundamentals are strong.

Benefits

  • Health insurance
  • Competitive salary
  • Remote work options

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