Backend Engineer

Overview

In this Backend Engineer role, you will build and operate production-grade backend services that power a rapidly growing FinTech/SaaS product. You will shape resilient, scalable systems and APIs, collaborating with cross-functional teams to support ambitious growth and cutting-edge tech adoption. The role emphasizes performance, reliability, and evolving stacks, with a strong focus on AI/ML integration and deterministic automated actions. This is a hybrid/remote opportunity with a fast-paced, learning-centric culture and significant impact on the product roadmap.

Responsibilities

• Build and operate backend services (Node.js/Express, Python) in production
• Design RESTful and event-driven APIs
• Implement concurrency, locking, idempotency, and distributed consistency mechanisms
• Integrate AI/ML or decisioning services into backend platforms
• Develop safety, audit, and rollback mechanisms for automated execution
• Deploy and operate Node.js services on AWS and manage CI/CD/infrastructure-as-code
• Collaborate with peers in a fast-paced, growth-focused FinTech/SaaS environment
• Contribute to scalable, data-driven financial/transaction systems

Key requirements

• Production experience with Node.js/Express and Python
• Strong familiarity with AWS (ECS/EKS, Lambda, SQS, EventBridge, RDS/DynamoDB, S3)
• Experience designing RESTful and event-driven APIs
• Relational data modelling experience (financial/transaction systems advantageous)
• Experience with concurrency, locking, idempotency, distributed consistency
• Experience with message queues, background workers, workflow orchestration
• Hands-on experience deploying Node.js services on AWS
• Experience with CI/CD and infrastructure-as-code and containerised workloads
• Strong communication and collaborative skills
• Experience in FinTech/SaaS is advantageous

• strong communication
• collaborative
• driven
• Node.js
• Express
• Python