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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Back End Developer - **Company:** Infinity Quest - **Location:** London, UK - **Salary:** £28,000.0 - £49,000.0 - **Contract:** Permanent contract - **Skills:** Automation of Tests, BigQuery, Cloud Computing, Software Quality, Code Review, Continuous Integration, Data Integrity, DevOps, Distributed Systems, Fault Tolerance, PostgreSQL, MongoDB, NoSQL, RabbitMQ, Redis, Reliability Engineering, Data Streaming, Systems Architecture, Data Logging, Transaction Processing (Computing), Indexer, Backend, Rate Limiting, Event Driven Architecture, Kubernetes, Deployment Automation, Apache Kafka, Video Streaming, Devsecops, Docker, Golang, Microservices - **Published:** September 14, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5882590279 ## About the Role * We are seeking highly skilled Golang Engineers with strong engineering fundamentals and deep Golang expertise. * We require experience building and operating distributed systems at scale. * We require experience working in modern cloud-native environments. * We require strong knowledge of resilient microservices and event-driven systems. * We require experience with high-throughput, mission-critical financial transaction systems. * We require experience with Kubernetes and Docker. * We require experience with CI/CD pipelines and deployment automation. * We require experience with distributed messaging and streaming technologies such as Apache Kafka and RabbitMQ. * We require experience with relational and NoSQL databases, including PostgreSQL, MongoDB, and BigQuery; Redis is desirable. * We require familiarity with observability practices, including logging, metrics, tracing, and monitoring. * We require strong code quality practices, including automated testing and code reviews. ## Description * We design, develop, and maintain robust backend services using Golang. * We build scalable APIs and microservices supporting banking and payment capabilities. * We develop reusable libraries, frameworks, and engineering standards. * We participate in system architecture and technical design discussions. * We ensure code quality through automated testing, code reviews, and engineering best practices. * We troubleshoot and resolve complex production issues. * We design and implement distributed systems capable of processing high-throughput financial transactions. * We optimise system performance, latency, availability, and fault tolerance. * We implement resilience patterns such as circuit breakers, retry mechanisms, dead-letter queues, bulkheads, and rate limiting. * We support multi-service platform architectures operating at scale. * We design and implement event-driven solutions using Apache Kafka, RabbitMQ, streaming architectures, and asynchronous processing patterns. * We develop event producers and consumers supporting business-critical workflows. * We ensure reliable event delivery, replay strategies, and idempotent processing. * We build and operate services running within Kubernetes environments. * We develop and maintain Docker containers. * We contribute to deployment automation and CI/CD pipelines. * We collaborate with Platform and SRE teams on scalability, security, and operational excellence. * We design and optimise data models for relational and NoSQL databases. * We ensure performance, resilience, and data integrity across services. * We implement efficient querying, indexing, and transactional processing. * We promote agile and DevSecOps practices. * We support observability through logging, metrics, tracing, and monitoring. * We participate in architecture reviews and engineering governance. * We mentor junior engineers and contribute to engineering communities of practice. Technologies: * BigQuery * Backend * CI/CD * Cloud * DevSecOps * DevOps * Docker * Golang * Support * Kafka * Kubernetes * MongoDB * NoSQL * PostgreSQL * RabbitMQ * Redis * Security * microservices More: We are a fast-paced engineering team building and enhancing next-generation banking and payment platforms. We work in a modern cloud-native environment, delivering resilient microservices and event-driven systems that support secure, real-time transaction processing across a complex banking ecosystem. 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