Backend Software Engineer, Fintech APIs & Scale (Remote US)

Bjak; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

BJAK is seeking experienced backend engineers to build the core systems behind our AI Finance Agent. This remote role is based in the United States and focuses on scalable APIs, workflows, and financial product infrastructure that can support millions of users across markets.

You'll own backend services, integrate with banks, payment gateways, insurers, and data providers, and work with product and mobile teams to ship customer journeys quickly while improving reliability, security, and

Qualifications

• 3+ years of backend engineering experience.
• Strong API, database, and system design fundamentals.
• Experience with scalable services and third-party integrations.
• Knowledge of security, reliability, data quality, and edge cases.
• Ability to balance speed, quality, and risk.

Responsibilities

• Build backend services and APIs for the AI Finance Agent.
• Design reliable systems for accounts, transactions, and integrations.
• Collaborate with product and mobile teams to ship features.
• Improve observability, reliability, and performance.
• Ensure compliance with regulated financial product requirements.

Skills

Backend engineering

APIs & databases

System design

Production debugging

Security & reliability

Third-party integrations

Cross-functional collaboration

Job description

BJAK is seeking experienced backend engineers to build the core systems behind our AI Finance Agent. This remote role is based in the United States and focuses on scalable APIs, workflows, and financial product infrastructure that can support millions of users across markets.

You'll own backend services, integrate with banks, payment gateways, insurers, and data providers, and work with product and mobile teams to ship customer journeys quickly while improving reliability, security, and