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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Developer - **Company:** gb Sanderson Recruitment - **Location:** London, UK (Remote available) - **Salary:** £156,000.0 - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Amazon Web Services, Amazon S3, User Authentication, Bash Shell, Cloud Computing, Cloud Engineering, Decision Support Systems, Distributed Systems, Python (Programming Language), Key Management, Live Connect (Windows), Apache Maven, Node.Js, Software Architecture, Software Construction, Software Engineering, TypeScript, SSL Certificate Management, Spring-boot, SOAPAPI, SC Clearance, Event Driven Architecture, Kubernetes, Apache Kafka, Event Sourcing, Api Gateway, Amazon Simple Queue Service (SQS), Terraform, Docker, Microservices - **Published:** September 9, 2026 - **Apply:** https://www.totaljobs.com/job/principal-developer/sanderson-recruitment-job107954367 ## About the Role You'll be an experienced Principal Developer with a strong background in Java and AWS, capable of leading complex technical delivery while remaining hands-on. You'll have experience working on large-scale distributed systems, influencing architectural decisions and supporting live services within complex engineering environments. ## Description We're looking for a Principal Developer to join a major engineering programme delivering large-scale, cloud-native systems within AWS. This is a hands-on technical leadership role suited to an experienced engineer who enjoys remaining close to the code while helping shape technical direction across multiple teams. You'll play a key role in designing, building and supporting resilient microservices-based solutions, contributing to architectural decisions, technical governance and live service operations. What You'll Be Doing * Leading the design and development of large-scale cloud-native applications. * Delivering distributed, event-driven microservices-based solutions. * Providing technical leadership and direction across multiple teams. * Collaborating with architects, security specialists and senior stakeholders. * Acting as a technical authority, supporting complex technical decision-making. * Driving engineering standards, quality assurance and best practice. * Contributing to architecture, solution design and technical governance. * Supporting production services, incident management and live operations. * Ensuring solutions are resilient, observable and scalable. * Delivering complex implementation work while maintaining strong stakeholder engagement. * Producing and maintaining technical documentation. * Supporting the continuous improvement of engineering capability and delivery processes. Essential Skills Java & Software Engineering * Strong commercial Java development experience. * Spring Boot. * Maven. * REST and SOAP services. * Experience delivering large-scale enterprise systems handling high transaction volumes. * Strong understanding of software engineering best practices and modern development approaches. AWS & Cloud-Native Development * AWS. * S3. * SQS. * SNS. * Step Functions. * EventBridge. * Event Sourcing. * Experience delivering distributed and asynchronous systems. * Cloud-native application development. Architecture & Engineering * Microservices architecture. * Event-driven architecture. * Distributed systems design. * Building resilient and observable systems. * Architecture and solution design experience. Containers & Platform Engineering * Docker. * Docker Compose. * Kubernetes. * Containerised application delivery and support. Leadership & Operations * Technical leadership across multiple teams. * Technical governance. * Architectural decision support. * Stakeholder engagement. * Production support. * Incident management. * Live service operations. * Experience acting as a technical authority. Security * Active SC Clearance. Desirable Skills * Python. * Bash. * Node.js. * TypeScript. * LocalStack. * AWS AppConfig. * AWS API Gateway. * Lambda Authorizer. * Terraform. * Helm. * Kafka / AWS MSK. * Secrets Management. * Authentication and Authorisation. * Certificate Management. ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Stop using Node.js like in 2020! 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