Senior Java Engineer

SII Group; United Kingdom; Remote; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Great Place To Work

Career development focus

Job summary

SII UK seeks a Senior Java Engineer to join a collaborative Agile team delivering scalable, cloud-native solutions on AWS. You will design, develop and maintain high-quality applications while promoting craftsmanship and knowledge sharing.

In this role you will pair program daily, contribute to CI/CD pipelines, testing and automation, and work with distributed stakeholders to deliver robust software. This position emphasizes engineering excellence and continuous improvement in a fast-paced

Qualifications

• Significant experience as a Senior Java Engineer within Agile delivery environments.
• Proven track record delivering production-grade Java applications on AWS.
• Experience in teams that use pair programming as a standard practice.
• Strong background across the full software delivery lifecycle.
• Heavy emphasis on automated testing, CI/CD and DevOps practices.

Responsibilities

• Design, develop, and maintain robust Java applications.
• Build and deploy cloud-native solutions using AWS services.
• Participate in daily pair programming as a core delivery practice.
• Collaborate with engineers, architects, product stakeholders, and delivery teams.
• Champion TDD and clean code principles in projects.
• Contribute to CI/CD pipeline design and implementation.
• Support code reviews, technical discussions and continuous improvement initiatives.
• Troubleshoot, optimise, and enhance existing applications and services.
• Promote collaboration, learning and engineering excellence.

Skills

Java

AWS

CI/CD

TDD

Pair programming

Agile

Communication

Tools

Docker

Kubernetes

Job description

We are seeking a highly skilled Senior Java Engineer to join a collaborative Agile engineering team delivering scalable, cloud-native solutions. This role is ideally suited to an experienced engineer who is passionate about software craftsmanship, enjoys knowledge sharing, and thrives in a highly collaborative environment where pair programming is a fundamental part of the team's day-to-day way of working.

Working within a modern engineering culture, you will help design, develop, and maintain high-quality applications using Java and AWS, while contributing to continuous improvement across development practices, automation, and delivery processes.

RESPONSIBILITIES

• Design, develop, and maintain robust, scalable applications using Java.
• Build and deploy cloud-native solutions leveraging AWS services.
• Participate in daily pair programming sessions as a core part of software delivery.
• Collaborate closely with engineers, architects, product stakeholders, and delivery teams.
• Champion engineering best practices including Test-Driven Development (TDD) and clean code principles.
• Contribute to the design and implementation of CI/CD pipelines to enable efficient and reliable software delivery.
• Support code reviews, technical discussions, and continuous improvement initiatives.
• Troubleshoot, optimise, and enhance existing applications and services.
• Promote a culture of collaboration, learning, and engineering excellence.

EXPERIENCE REQUIRED

• Significant experience working as a Senior Java Engineer, Software Engineer, or Developer within Agile delivery environments.
• Demonstrable experience delivering production-grade applications using Java and AWS.
• Proven track record of working within teams that utilise pair programming as a standard engineering practice.
• Experience working across the full software development lifecycle.
• Strong background in automated testing, continuous integration, and continuous deployment.
• Ability to collaborate effectively with distributed teams and non-technical stakeholders.
• Experience working within consultancy, enterprise, or large-scale technology environments would be advantageous.

SKILLS REQUIRED

Essential

• Strong commercial experience developing enterprise applications with Java.
• Solid hands-on experience working with AWS cloud services.
• Proven experience implementing and maintaining CI/CD pipelines.
• Strong understanding and practical application of Test-Driven Development (TDD).
• Extensive experience with pair programming methodologies.
• Comfortable working in a continuous pair programming environment on a daily basis.
• Strong knowledge of Agile software development practices.
• Excellent communication and collaboration skills.

Desirable

• Experience with microservices architectures.
• Knowledge of containerisation technologies such as Docker and Kubernetes.
• Experience with infrastructure-as-code approaches.
• Exposure to DevOps and Site Reliability Engineering practices.
• Experience mentoring and supporting other engineers.

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK-wide to deliver high-impact engineering solutions.

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission-critical programmes while helping to shape the future of innovation across next-generation systems and technologies.

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment.

True to our human-centred values, we are committed to making SII UK a Great Place To Work, having been certified 5 years running.

Joining SII UK means being part of our collective goals, guided by our mission "Let's Tech Together," and helping to build a digital future that is sustainable, at the heart of an environment that values learning & collaboration.