Senior Backend Engineer

We are looking for a Senior Backend Engineer to build scalable products, own design and architecture decisions, and mentor teammates. You will work closely with product and engineering teams to build secure, high-performance, and reliable backend systems. We welcome engineers with strong experience in any backend programming language, including Java, Golang, Python, Node.js, C#, Rust, or other backend technologies. Strong engineering fundamentals, system design expertise, and product ownership matter more than a specific programming language.

Responsibilities:

• Own backend development from architecture and system design through implementation, deployment, and production support.
• Build products from scratch and scale them as usage and business complexity grow.
• Design, develop, and optimise scalable backend services using modern backend technologies.
• Design robust REST/gRPC APIs, database models, microservices, and event-driven workflows.
• Build distributed systems with fault tolerance, reliable communication, and appropriate data consistency guarantees.
• Make architecture decisions balancing performance, scalability, consistency, security, and maintainability.
• Optimise backend services for low latency, high throughput, and efficient resource utilisation.
• Improve monitoring, logging, metrics, and alerting.
• Contribute to CI/CD pipelines, containerised deployments, and cloud infrastructure.
• Mentor teammates through design discussions, code reviews, and hands-on technical guidance.
• Collaborate with product and engineering teams and take ownership of delivery and product outcomes.

Requirements:

• Strong hands-on experience building and operating production-grade backend systems using any backend programming language
• Solid understanding of concurrency, asynchronous programming, multithreading, and synchronisation concepts.
• Strong understanding of design patterns, architectural principles, and system design.
• Hands-on experience with databases, data modelling, query optimisation, and REST/gRPC API development.
• Experience with microservices, event-driven architectures, asynchronous processing, and distributed systems.
• Strong understanding of distributed consistency, concurrency, scalability, and failure handling.
• Knowledge of application security, authentication, authorisation, and secure data handling.
• Working knowledge of DevOps fundamentals, including CI/CD, Docker, containers, and Kubernetes.
• Experience with cloud platforms, preferably Google Cloud Platform (GCP); AWS experience is also acceptable.
• Ability to work independently, communicate technical decisions, and mentor teammates in a remote environment.

Preferred Background:

• Startup experience building products from 0 to 1 and scaling them from 1 to 100.
• Experience owning architecture and delivering greenfield products using any modern backend technology.
• Experience building high-concurrency, low-latency, and high-throughput backend services.
• Familiarity with application performance profiling, memory management, and backend optimisation.
• Experience in anti-fraud, commercial banking, fintech, or growth engineering is a plus.
• Comfort working with ambiguity, taking ownership, and balancing delivery speed with engineering quality.

Skills

AWS, Distributed Systems, GCP, gRPC, Kubernetes, Microservices, REST, Backend, fintech