LocationBirminghamCardiffDarlingtonEdinburghLondonSalford OverviewThe Integrated Corporate Services (ICS) is a new shared corporate service launched in July 2023. It provides HR, finance, digital, commercial, security and estates across the Department for Energy Security & Net Zero (DESNZ) and the Department for Science, Innovation & Technology (DSIT). Our team of just over 300 professionals will lead the way in how these functions will be delivered in the future. We are the leading provider of integrated corporate services for government, setting the standard for quality, efficiency and innovation. Job DescriptionAs a Lead Developer, you will design, develop, implement and maintain services within ICSDigital. You will lead technical projects, collaborate closely with stakeholders and deliver high‑quality, scalable, efficient solutions across DESNZ and DSIT. You will work with civil servants and contractors in a multidisciplinary environment, develop and support a range of services across data and development platforms, and embrace agile ways of working. Person SpecificationLead the design and development of tailored digital solutions across platforms like Salesforce, Azure and AWS using languages such as C#, Python and TypeScript.Own technical planning and delivery, ensuring alignment with architectural standards, coding best practices and project timelines.Collaborate with stakeholders and technical teams to gather requirements, translate them into specifications and provide strategic guidance throughout the development lifecycle.Oversee data modelling, migration and integration, ensuring seamless interoperability between systems and services.Develop and maintain reusable components and APIs, supporting scalable service integrations across cloud and enterprise platforms.Mentor developers and conduct code reviews, promoting technical excellence, continuous learning and collaborative problem‑solving.Resolve complex technical issues and support robust deployment, working closely with QA and DevOps to ensure system reliability, performance and maintainability. Essential CriteriaStrong hands‑on coding skills in Python, C#/.NET and TypeScript, with experience building secure, scalable solutions across cloud platforms.Cloud delivery expertise on AWS and/or Azure, including deployment, workload identity, networking fundamentals and core service integration.DevOps and automation proficiency, including CI/CD pipeline design (GitHub Actions, Azure DevOps), infrastructure as code (Terraform, Bicep/ARM) and versioning strategies.Robust testing mindset, with experience in automated unit, integration and end‑to‑end testing using frameworks like pytest, xUnit/NUnit and Jest, embedded within pipelines.Architecture and security‑by‑design, translating business needs into scalable, API‑first solutions, applying OWASP principles, OAuth2/OIDC and secure coding practices.Operational excellence and technical leadership, including observability (logs, metrics, traces), incident response, accessibility (WCAG 2.2 AA), mentoring and adherence to government service standards. Desirable CriteriaCross‑cloud and container experience, including operating in both AWS and Azure, and building/running services with Docker.Advanced engineering practices, such as reusable Terraform modules, performance/accessibility/security testing in CI, modernising legacy systems into cloud‑native architectures and designing and developing data platforms.Public sector and leadership impact, with experience delivering to GDS standards, holding relevant certifications (e.g. AWS/Azure/Terraform) and contributing through coaching, communities of practice and technical direction. Behavioural CriteriaMaking Effective DecisionsManaging a Quality Service Technical Skill AssessmentSystems Design – PractitionerProgramming and Build – Expert EEO and Accessibility StatementWe are a Disability Confident Leader employer. We support candidates with adjustments throughout our recruitment process. Information about disability confidence and some examples of the adjustments you can request can be found in the reasonable adjustment section below. The Civil Service is committed to attracting, retaining and investing in talent wherever it is found. To learn more please see the Civil Service People Plan and the Civil Service D&I Strategy. Recruitment Agency StatementPlease, no recruitment agencies. #J-18808-Ljbffr