Senior Software Developer

PCI Pal; Greater London, Ipswich; Hybrid; GBP 85,000 - 120,000; Full time

Benefits offered by this job

25 days holiday

Travel to London/Ipswich offices

Medical, dental & optical insurance

Work from anywhere policy

Training and development opportunities

Employee assistance programme

Electric Vehicle Scheme

Job summary

PCI Pal is seeking a passionate Senior Software Developer to join an agile squad. You will design, build, and enhance features across the PCI Pal product suite while mentoring peers and driving engineering best practices.

The role requires commuting distance to London or Ipswich with weekly office visits as needed. You will work across modern C#, TypeScript, HTML/CSS, and cloud platforms (AWS), focusing on scalable, secure, and high-quality software with a strong emphasis on architecture and

Qualifications

• Strong experience in modern C#, TypeScript, HTML and CSS.
• Strong cloud platform experience, ideally AWS.
• Strong CI/CD experience.
• Strong experience using infrastructure as code (CDK, Terraform).
• Experience developing serverless applications (Lambda).
• Focus on architecture and code quality.
• Experience with Vue or React.
• Understanding of SOLID and design patterns.
• Strong OOP and Dependency Injection.
• Experience integrating with third party APIs.
• Experience writing performance critical code.
• Experience with Git or similar.

Responsibilities

• Work as part of a close-knit squad to design, build and deliver high quality solutions.
• Provide technical guidance and mentorship to team members.
• Drive best practices – SOLID, design patterns and refactoring.
• Write code to develop, fix or enhance features in the PCI Pal product suite.
• Plan and refine projects with team leads and product owners.
• Help ensure timely delivery of features in a fast-changing environment.
• Support web infrastructure health checks and maintenance.
• Maintain expert knowledge of PCI Pal products, services, and deployment methodology.
• Create internal technical and process documentation for wider engineering use.
• Maintain high standards of software quality and lead code reviews.
• Support live products and learn new technologies.
• Training and development opportunities and a supportive working environment.
• 25 days holiday, rising to 28 with service.
• Employee benefits including insurance and wellbeing support.

Skills

C#

TypeScript

HTML/CSS

AWS

CI/CD

Infrastructure as code

Serverless

UI frameworks

SOLID design

OOP/DI

APIs

Git

Tools

Terraform

CDK

Lambda

Elastic APM

DataDog

Git

Job description

We’re looking for a passionate and experienced Senior Software Developer to join one of our agile squads. In this role, you’ll be hands‑on in designing, building, and enhancing features across the PCI Pal product suite, while also setting the technical standard through mentorship, code reviews, and driving engineering best practices. You’ll collaborate closely with testers, product owners, and team leads to deliver high-quality, maintainable solutions in a fast‑moving environment. With responsibilities spanning feature development, infrastructure support, and continuous learning, this is an opportunity to shape both the product and the team around you through expert‑level contribution and thoughtful technical leadership. The successful candidate must be within commuting distance to both London and Ipswich. This is a hybrid role with expectation that when required, the successful candidate can travel to one of our offices at least once per week.

Job requirements

• Strong experience in in modern C#, TypeScript, HTML and CSS
• Strong cloud platform experience, ideally AWS • Strong CI/CD experience
• Strong experience of using infrastructure as code (e.g. CDK, Terraform)
• Experience developing serverless applications (e.g. Lambda)
• A strong focus on architecture and code quality
• Experience of modern UI frameworks such as Vue or React
• Have a good understanding of SOLID principles and how to use design patterns to create robust, maintainable and testable code
• Strong understanding of object‑oriented programming and Dependency Injection
• Strong experience of integrating with third party services using APIs
• Experience of writing performance critical code
• Experience of using Git or similar to track changes
• Experience of both the full .NET Framework and .NET Core
• Experience of using observability systems such as Elastic APM or DataDog to track and diagnose issues in production
• A solid understanding of security principles and secure coding including OWASP Top 10

• Strong experience in in modern C#, TypeScript, HTML and CSS
• Strong cloud platform experience, ideally AWS • Strong CI/CD experience
• Strong experience of using infrastructure as code (e.g. CDK, Terraform)
• Experience developing serverless applications (e.g. Lambda)
• A strong focus on architecture and code quality
• Experience of modern UI frameworks such as Vue or React
• Have a good understanding of SOLID principles and how to use design patterns to create robust, maintainable and testable code
• Strong understanding of object‑oriented programming and Dependency Injection
• Strong experience of integrating with third party services using APIs
• Experience of writing performance critical code
• Experience of using Git or similar to track changes
• Experience of both the full .NET Framework and .NET Core
• Experience of using observability systems such as Elastic APM or DataDog to track and diagnose issues in production
• A solid understanding of security principles and secure coding including OWASP Top 10

Nice to haves

• Experience in VOIP, (SIP and RTP advantageous)
• Experience of TDD/BDD/DDD
• Knowledge of PCI compliance and associated standards such as ISO 27001
• Knowledge of accessibility standards and how to apply them (WCAG)
• Experience with developing CRM plugins
• Experience of Python and Data Analytics
• Experience of developing AI applications

Job responsibilities

• Working as part of a close-knit squad of developers and testers to design, build and deliver high quality solutions in line with guidance and best practices of the department
• Providing technical guidance and mentorship to other members of your team
• Drive best practices – SOLID principles, design patterns and refactoring existing code to be more maintainable and efficient
• Writing code to develop, fix or enhance features within the PCI Pal product suite
• Working with your team lead and product owner to plan and refine projects
• Helping to ensure the team delivers high quality features on time in a rapidly changing environment
• Supporting the management of web infrastructure and performing associated health checks as needed
• Building and maintaining an expert knowledge of PCI Pal’s products, services, and deployment methodology
• Creating internal technical and process documentation for your work to ensure knowledge is shared with the wider engineering team
• Maintain high standards of software quality within the team by establishing good practices and habits • Writing testable, scalable and efficient code and leading code reviews
• Supporting live products
• Learning new technologies and keep abreast of existing technologies and be able to apply these to your work
• 25 days holiday, rising to 28 days per annum with length of service
• Medical, dental and optical insurance cover
• An exciting and flexible working environment surrounded by friendly and committed co‑workers
• UK: Electric Vehicle Scheme
• “Work from anywhere” 2 weeks per year policy
• Training and development opportunities
• Access to an employee assistance programme and wellbeing support hub