Backend Developer

About BJAK

BJAK was founded in 2019 with a vision to provide smarter financial planning, saving, and growth solutions. Originating as the first mobile-focused insurance platform in Southeast Asia, BJAK has empowered millions with accessible online insurance. Currently, the company is broadening its offerings to include spending, saving, investing, exchanging, traveling, and more, all aimed at helping people maximize the value of their money every day. BJAK operates globally with a diverse team spanning over 20 nationalities, fostering a passionate work environment focused on innovation and impact.

Role Overview

We are searching for backend developers to create the foundational systems powering BJAK's AI Neobank application. Candidates will be responsible for engineering dependable APIs, workflows, and financial product infrastructure capable of scaling across multiple markets, partners, and millions of users.

Key Responsibilities

• Develop backend services and APIs related to onboarding, account management, payments, cards, transfers, rewards, travel, foreign exchange, KYC, and risk processes.
• Design and maintain robust systems supporting live customer transactions, operational workflows, and upcoming financial products.
• Integrate internal platforms with financial partners, payment providers, AI services, and third-party systems.
• Ensure high standards of backend quality regarding reliability, security, latency, observability, data integrity, and incident management.
• Collaborate closely with product, frontend, mobile, and AI teams to rapidly and securely roll out new features.
• Enhance existing infrastructure by streamlining process flows, eliminating manual tasks, and automating repetitive operations.

Candidate Profile

• Proven experience engineering backend production systems.
• Good knowledge of APIs, databases, authentication and authorization protocols, queues, job processing, event-driven architectures, and integrations.
• Experience creating services that serve real customers or internal teams at scale.
• Strong capabilities in debugging, ensuring reliability, securing systems, and maintaining data integrity.
• Ability to make informed compromises balancing speed, accuracy, scalability, and maintainability.
• Experience in fintech domains such as payments, banking, wallets, KYC, fraud prevention, or risk management highly advantageous but not mandatory if fundamental skills are solid.

Role Unsuitability

• Not suitable for engineers interested only in isolated backend tasks.
• Not a fit for those who disregard security, data consistency, monitoring, or operational risks.
• Unsuitable for developers unable to adapt to rapidly evolving product requirements.
• Not for candidates lacking firsthand experience managing production-scale systems despite discussing scalability.
• Applicants who cannot clearly demonstrate ownership or exaggerate impact will not align with our expectations.

Candidate Expectations

We seek professionals with meaningful technical achievements beyond just company names, reflecting genuine involvement in building, launching, or scaling significant products, platforms, or systems.

Location and Work Model

This position is based in the United Kingdom, requiring a hybrid presence. Candidates are expected to work onsite in our London office at least three days per week.

Communication

English is the primary language across BJAK’s international teams. Strong English communication skills are essential.

Interview Procedure

• Complete an online assessment or practical task.
• Participate in technical interviews.
• Final interview with CEO.

Exceptional candidates may receive offers within one week of starting the interview process. Timely completion of assessments is encouraged to accelerate consideration.