Job Description

About Us

Leighton: 32 years and counting. Experienced and agile. Trusted by some of the world's biggest brands. We develop and deliver custom software. We use technology to make money, save money, create efficiencies, integrate systems, solve problems. To help our customers thrive. We have a pool of talent. To manage projects. Test to high standards. Create user experiences for every type of user. We include, include, include. Our service is personal. We know your name. We can do amazing things with tech. We've got the talent. We decide what's best for our customer together.

Our Values

The Leighton culture defines how we do business and how we interact with our colleagues and customers. It makes us unique and provides us with a competitive advantage


We act with honesty and truth, always! We collaborate to bring our purpose to life in a caring and supportive way We nurture our amazing people to be the best version of themselves Passionate about what we do, proud of what we achieve Our curiosity inspires the amazing

We are seeking a highly skilled and experienced

AWS Developer/Architect

to design, implement, and manage cloud-based solutions on the Amazon Web Services (AWS) platform. The ideal candidate will possess a deep understanding of AWS services, cloud computing technologies, and software development, enabling them to deliver scalable, reliable, and secure solutions tailored to business needs.

Key Responsibilities

Cloud Architecture Design

Design and develop highly scalable, available, and fault-tolerant systems on AWS using an AWS Native approach. Define architecture patterns and best practices for cloud-based applications. Create detailed architectural diagrams and documentation for proposed solutions.

Solution Implementation

Build, deploy, and manage AWS-based applications using a combination of AWS services such as Lambda, DynamoDB, RDS, S3, CloudFormation, and more. Develop Infrastructure-as-Code (IaC) templates using tools like CDK (our preferred approach), Terraform or Serverless Framework.

Development & Automation

Write clean, scalable code for cloud-native applications using programming languages such as TypeScript (our preferred approach), Python, Java, or Go. Automate operational tasks, deployments, and infrastructure provisioning and CI/CD pipelines.

Performance Optimisation

Analyse and troubleshoot system performance issues, optimizing for cost and performance. Implement monitoring, logging, and alerting solutions using AWS CloudWatch, X-Ray, or other observability tools.

Security and Compliance

Implement robust security by design. Ensure compliance with industry standards and regulations like GDPR, HIPAA, or ISO.

Collaboration and Leadership

Collaborate with cross-functional teams, including product managers and QA, to deliver end-to-end solutions. Mentor junior team members in AWS best practices and development workflows. Lead architecture review sessions to ensure alignment with business goals.

Cost Management

Monitor and optimise AWS resource utilization to minimize costs. Consider cost in design of any system.

Key Skills and Abilities

Hands-on experience designing and developing solutions on AWS, specifically an AWS Native approach to building platforms and software. Proven track record of delivering cloud-native applications. Strong knowledge of core AWS services: S3, Lambda, RDS, DynamoDB, CloudFront, ECS etc. Proficiency in Infrastructure-as-Code (IaC) tools like AWS CDK, AWS CloudFormation, Terraform, or CDK. Expertise in container technologies like Docker and orchestration tools like ECS. Familiarity with DevOps practices and CI/CD tools like GitHub Actions or CodePipeline. Strong programming skills in languages such as TypeScript, Python or Java. Understanding of RESTful APIs, microservices architecture, and event-driven design. Knowledge of AWS Identity and Access Management (IAM), security best practices, and data encryption. Excellent communication, problem-solving, and leadership skills.

Key Behaviours

An open and genuine communicator Able to take responsibility for your actions Always learning and wanting to improve Takes responsibility for own development Love what you do Value and support your team Embrace who you are Open minded and willing to explore new ideas

What We Offer

We value our team and to attract exceptional people, we offer an excellent package! In 2023 we were recognised as one of the Best Workplaces in Tech by Great Place To Work UK, the global authority on workplace culture.





As a Leighton employee you can look forward to:


A competitive salary this will be dependent on experience. A contributory pension scheme 25 days annual leave, plus bank holidays and the opportunity to buy or sell holiday A flexible approach to working hours Continuous personal development, career path and training * And more....