Senior Software Eningeer in Watford

A hands-on engineering role on Gravity Media’s in-house .NET booking platform, spanning software development and the DevOps practices that support it. You’ll lead the design and delivery of complex features and integrations, own the application’s CI/CD, environments, monitoring and release tooling, mentor other developers and act as a technical deputy to the Tech Lead. Two developers share this role and provide full cover for one another across both the development and operational sides of the platform.

What you’ll be responsible for:

• Lead the technical design and end-to-end delivery of complex application features, enhancements and third-party integrations, turning complex or unclear business requirements into practical, well-designed solutions.
• Own defined areas of application architecture, documenting decisions, dependencies and trade-offs, and identify and address technical debt, performance issues and maintainability risks.
• Provide senior technical review of code, designs and releases, acting as an approval point for higher risk application changes when delegated by the Tech Lead.
• Own the application CI/CD pipelines, deployment automation, environment configuration and infrastructure as code within the frameworks set by Group IT, ensuring delivery is reliable, repeatable and appropriately controlled.
• Own automated regression testing and release quality controls, ensuring changes meet agreed functional, technical, security and performance standards.
• Implement and maintain application monitoring, logging and alerting, and develop and regularly test backup and recovery procedures in line with Group IT standards.
• Lead technical investigation of complex application, deployment and performance incidents, capturing root causes and preventative actions and engaging Group IT on infrastructure, identity/access or cyber security issues.
• Mentor Developers and the Junior Developer through coaching, pairing and technical review, and support the Tech Lead in maintaining engineering standards, documentation and release practices.
• Maintain runbooks, configuration records and operational documentation so that the other Senior Software Developer can provide effective cover across development and operational responsibilities.
• Work with Group IT, third party system providers and technical partners on shared dependencies, integration design and issue resolution, and use approved AI-assisted tooling with appropriate validation and human oversight.

Requirements:

• Depth in either C#/.NET development or DevOps/platform engineering, with solid working capability in the other and a willingness to work across both; the two post holders cover each other fully.
• C#/.NET experience delivering and operating complex production applications, including application design, API and systems integration.
• Experience of CI/CD, deployment automation, infrastructure as code, monitoring and backup/recovery in production, using Azure DevOps, GitHub Actions or comparable tooling.
• Strong understanding of automated testing, secure development, cyber security, identity/access and change control principles, with the judgement to escalate matters outside application ownership.
• Ability to turn complex or ambiguous requirements into deliverable solutions and explain technical options and trade-offs to non-technical stakeholders.
• Experience mentoring other developers, with a calm, structured approach to incidents and strong documentation skills.
• Confidence working across software engineering, Business Systems, Group IT and third party partners; Dynamics 365 Business Central or other ERP integration experience is highly desirable.

General responsibilities:

• Play an active part in improving how the team and wider business work.
• Follow Company policies, information security requirements and the processes and controls relevant to the role.
• This job description covers the main responsibilities of the role but is not exhaustive and may change as the business and team develop.