As a Domains Team Senior Developer you?ll be responsible for working alongside mid-level and junior developers to build and maintain services for identifying and managing vulnerabilities associated with public sector domains. You will be expected to take the lead on individual epics as well as contributing across all of the team?s priorities. We are designing and maintaining a number of services, including a large data pipeline, two user-facing web applications. We also host various off-the-shelf tools on our infrastructure. Our main tech stack is primarily Python/Django, supported by AWS components such as lambda functions, message queues, analytics/dashboarding, etc. Our services are built almost exclusively using Python, including our infrastructure (using the AWS CDK), with small amounts of HTML/CSS and Javascript used in our frontend and for automated testing. You will build and maintain a domain vulnerability management toolset, principally in Python, including: Adding new, commercially-available or open source data sources to our existing ingestion pipeline Designing, building and maintaining additional tools for monitoring for and detecting vulnerabilities with public sector services. Extending our existing Django/Postgres-based API to accommodate new classes of vulnerability and enable reporting of these to operational colleagues and external partners. Building and extending tools to export vulnerability data to public sector domain owners, as supported by their vulnerability management tooling (MS Sentinel, Splunk etc). Maintaining and improving web applications used by our partners for consuming services provided by the Domains Team Integrating newly-built and extended components with our existing, AWS-based infrastructure using the Python CDK. Extending our existing reporting tooling (based on AWS Quicksight), and build new tools as required, to provide stakeholders with an overall picture of the range and scale of vulnerabilities discovered by our service. Clearly communicating ideas with the rest of the development team, service owners, and other colleagues; receive feedback and build consensus for proposed solutions. Sharing responsibility for establishing development standards and good practice, and ensuring that the development team works to them. Ensuring the product is built according to the needs of users, including an operations team, a communications team, national security stakeholders and other apex domain holders. The above list of job duties is not exhaustive and a willingness to work flexibly as priorities change is an essential requirement of the role.