Remote Backend Engineer — Fintech APIs & Scalable Systems

United States Digital Space LLC; United States; Remote; USD 81,000 - 127,000; Full time

Job summary

BJAK is seeking backend engineers to build the core systems behind the company's AI Neobank app.

This role is for engineers who can build reliable APIs, workflows and financial product infrastructure that can scale across markets, partners and millions of users. You'll own backend services for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC and risk flows, and work with product, frontend, mobile and AI teams to launch features quickly and safely.

Qualifications

• Strong backend engineering experience in production systems.
• Experience designing APIs, databases, authentication, authorization, queues, jobs and integrations.
• Experience building services used by real customers or internal operations at meaningful scale.
• Strong debugging, reliability, security and data quality mindset.

Responsibilities

• 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.

Skills

Backend engineering

APIs design

Distributed systems

Security & data integrity

Observability

KYC/risk knowledge

Job description

BJAK is seeking backend engineers to build the core systems behind the company's AI Neobank app.

This role is for engineers who can build reliable APIs, workflows and financial product infrastructure that can scale across markets, partners and millions of users. You'll own backend services for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC and risk flows, and work with product, frontend, mobile and AI teams to launch features quickly and safely.