Senior Software Engineer

Gazelle Global; United Kingdom; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Gazelle Global is seeking a Senior Full Stack Java Developer to join a hybrid delivery team, focusing on Node.js and AWS. You will contribute to the design, development and maintenance of citizen-facing services, ensuring reliability, security and performance across the stack.

The role covers backend, databases and frontend, with cloud-native architectures, REST APIs, microservices and CI/CD pipelines. You will work in Agile squads using GitLab, Terraform, Docker and Kubernetes, with a

Qualifications

• Strong hands-on full-stack development across backend, databases and frontend.
• Experience with Angular or modern frontend frameworks.
• Practical AWS serverless experience: Lambda, API Gateway, SQS, S3.
• Experience designing REST APIs, microservices and event-driven systems.
• Knowledge of NoSQL databases (MongoDB, DocumentDB) and IaC (Terraform).
• Experience with Docker, Kubernetes and AWS EKS.
• CI/CD pipelines experience, preferably GitLab, and automated testing (Jest).
• Active or eligible for SC clearance.

Responsibilities

• Design, develop and maintain full-stack applications using Node.js, Java, Spring Boot and modern frontend frameworks (Angular).
• Develop secure, scalable cloud-native apps on AWS and/or Azure, including serverless services.
• Build REST APIs and microservices; implement event-driven solutions with Kafka-like systems.
• Create and maintain frontend components and user journeys towards MVP.
• Collaborate with DevOps and Agile teams to deliver robust digital services.
• Apply best practices for code quality, security, accessibility and performance.

Skills

Full-stack development

Angular

AWS

REST APIs

Docker

Kubernetes

GitLab CI/CD

Jest

SC clearance

Terraform

MongoDB

Tools

Terraform

Docker

Kubernetes

AWS Lambda

API Gateway

Job description

Full Stack Java Developer with Node.js & AWS

Contract: 12 months

Location: Hybrid, with a preference for Newcastle; other locations include London, Leeds, Manchester, Blackpool and Sheffield.

The Role

We are looking for Senior Software Developers to contribute to the design, development and maintenance of citizen-facing digital services. You will work within a multidisciplinary Agile team, building reliable, secure and scalable software while ensuring the operational stability, robustness and resilience of the products you develop.

The role requires full-stack capability across backend services, databases and frontend user interfaces. You will work with cloud-native technologies, APIs, microservices and event-driven architectures, supporting the development of existing and evolving digital services through to production.

Key Responsibilities

• Design, develop and maintain full-stack digital applications using Node.js, Java, Spring Boot and modern frontend frameworks, preferably Angular.
• Develop secure, scalable cloud-native applications using AWS and/or Azure, including serverless services such as Lambda, API Gateway and SQS.
• Design and implement REST APIs, microservices and event-driven solutions using Kafka or similar technologies.
• Develop and maintain frontend components and user journeys, supporting iterative delivery towards MVP and production-ready services.
• Work with NoSQL databases, including MongoDB or Amazon DocumentDB.
• Use Terraform for Infrastructure as Code and support containerised applications using Docker, Kubernetes and AWS EKS.
• Build and maintain automated test suites and contribute to CI/CD pipelines, preferably using GitLab and Jest.
• Support defect resolution, backlog delivery, production stability and continuous improvement.
• Apply engineering best practices covering code quality, application security, accessibility, WCAG compliance and performance.
• Collaborate with DevOps, user-centred design, product and Agile delivery teams to deliver effective digital services.

Essential Skills and Experience

• Strong hands-on full-stack software development experience across backend, databases and frontend applications.
• Experience with modern frontend frameworks, preferably Angular.
• Practical experience with AWS serverless services, including Lambda, API Gateway, SQS, S3, KMS, CloudWatch and X-Ray.
• Experience designing and developing REST APIs, microservices and event-driven architectures.
• Experience with NoSQL databases such as MongoDB or Amazon DocumentDB.
• Knowledge of Terraform and Infrastructure as Code.
• Experience with Docker, Kubernetes and preferably AWS EKS.
• Experience with CI/CD pipelines, preferably GitLab, and automated testing frameworks such as Jest.
• Strong Agile delivery, communication and multidisciplinary collaboration skills.
• Active or previously held SC clearance, or eligibility for SC clearance.
• Experience with Kafka and API gateway platforms such as Kong Enterprise.
• Experience delivering large-scale serverless and event-driven applications.
• Familiarity with SonarQube and other code quality tools.
• Experience with public-sector or accessible digital services.
• Exposure to AI/ML-enabled development, including LLMs, guardrails, validation and testing, and model deployment or maintenance.

Working Arrangements

This is a hybrid contract role requiring a combination of remote working and attendance at designated hubs. Newcastle is the preferred location, with other listed UK locations also considered.