Backend Developer

BJAK
Tokyo
Workplace: HybridFull timeFunction: Software EngineeringSkills: ["Debugging","Reliability","Security mindset","Data quality focus","Trade-off decision-making"]

Build reliable backend services and APIs for the core systems behind an AI Neobank app, supporting onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC, and risk flows. Design scalable infrastructure for real customer transactions and operational workflows, integrate with partners, payment providers, AI services, and third parties, and own backend quality across reliability, security, latency, observability, data integrity, and incident handling.

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FursaFursa
BJAK
BJAK
2 months ago

Backend Developer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 12 hours agoStatus: Live
Reposted: similar role first listed 2 months ago

Job Summary

Build reliable backend services and APIs for the core systems behind an AI Neobank app, supporting onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC, and risk flows. Design scalable infrastructure for real customer transactions and operational workflows, integrate with partners, payment providers, AI services, and third parties, and own backend quality across reliability, security, latency, observability, data integrity, and incident handling.
Location: Tokyo
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Build backend services and APIs for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC, and risk flows.
  • •Design reliable systems that 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.

Key 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.
  • •Ability to make practical trade-offs between speed, correctness, scalability, and maintainability.
Experience:FintechPaymentsBankingKYCFraudRisk
Skills:DebuggingReliabilitySecurity mindsetData quality focusTrade-off decision-making
Languages:English
Tech Stack:APIsDatabasesAuthenticationAuthorizationQueuesJobsEventsIntegrationsObservabilityIncident handlingAI services

Company Brief

BJAK
Bjak is a Malaysia-based insurtech that operates an online insurance comparison and distribution platform across SEA, simplifying purchase and servicing of motor and life insurance using digital tools and AI-enabled services.
Industry: InsurTech
Company Size: Medium (51 to 250 employees)
Growth: Growth Stage Startup
Headquarters: Selangor, Malaysia
Founded: 2019
Glassdoor
Glassdoor: 2.5
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