Job Specifications
Job Title: Software Engineer
Location: Cardiff (1 day a week in the office)
Salary: £45,000 - £55,0000 + pension + bonus
Hours: 35-hour week, flexible around life
If you’re happiest when you’re coding, experimenting, and seeing the impact of what you build, this team will feel like home.
Interested in AI? They dont just use AI for boilerplate generation or internal demos but automation, data grading, and defect detection built into live systems used by global clients.
Thye are now at a stage where the architecture is done and they need Engineers that will code and build new features. We need someone who wants to stay close to the code, solve meaningful problems, and work with genuinely modern tech, from AWS microservices to AI-driven data pipelines that make the platform smarter every week.
The Challenge
The platform has been rebuilt into hundreds of AWS services and is now evolving from serverless to an always-on architecture that supports 24/7 global customers and faster response times.
You’ll join a small, experienced team where quality matters more than velocity, helping shape standards, tools, and direction while building systems that are reliable, scalable, and intelligent.
Job Responsibilities
Building and maintaining AWS-based microservices (Node)
Developing new AI-powered and data-driven features
Optimising always-on services for latency, reliability, and performance
Working on React components, authentication, and SSO
Collaborating across backend, frontend, data, and security disciplines
Tech environment
Typescript, Node, React, Python
AWS (Lambda, EC2, S3, CloudFormation, Bedrock)
DynamoDB / SQL
Event-driven architecture, CI/CD pipelines
Automated testing (Cypress / Playwright)
Exposure to GenAI tooling and AWS Bedrock integrations
Experience needed
Typically suited to someone with 1–3 years’ experience in an Engineer role
Solid knowledge of at least one core language (Node, React, Python)
Experience with serverless architecture in AWS or Azure
An engineering mindset focused on problem-solving and clean design
Curiosity about how AI can make systems smarter, not just faster
Why this role
A mature development environment that values doing things properly
Freedom to influence how systems are designed and built
Supportive, experienced leadership, no politics, no burnout
The offer
1 day a week in Cardiff (plus occasional townhalls/product kick-offs)
Flexible working, proper kit, and real balance
The chance to build, learn, and improve systems every week
This isn’t a fast track to Principal, and that’s the point!
About the Company
Founded in 2020, Sadler Recruitment Ltd specialise in Technology and Communications Recruitment.
We offer:-
15 years experience recruiting tech and marketing professionals in
A tailored and personal service to all our candidates
Market insight of companies and people
Highly skilled in sourcing ‘hard to find’ talent
Expert CV and Interview advice
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