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Role: Senior Data Scientist Salary: from £60,000 Location: Portsmouth ( hybrid, 3 days onsite) Intro Sirius Analysis, we are a rapidly growing consultancy firm, renowned for our reputation and our keen ability to understand and meet customer requirements effectively. Our team is dedicated to delivering high-quality, end-to-end consultancy services, ranging from operational research and data analysis to P3M. We operate across multiple sectors, including defence, energy, and health. We are looking for a Senior Data Scientist to join our Operational Analysis & Data Science team as we go through our next phase of growth, The Role: As a Senior Data Science Consultant, your role will be crucial in delivering informed, client-focused decision support across a diverse range of industries, including the UK MOD. You'll participate in projects that demand a keen ability to assess, analyse, and meet client-specific needs. You will play a major role in developing and implementing Machine Learning (ML) and Artificial Intelligence (AI) solutions for our clients, along with providing key advice around innovation and new techniques to stakeholders. You will be designing solutions for complex challenges and will integrate code with software engineers. Responsibilities will include: • Leading and delivering technical consulting projects., • Developing and delivering AI / ML solutions using a range of techniques (ML, NLP, LLMs, etc.) to tackle real world problems, applying tools and techniques, and developing novel approaches where required., • Building new relationships and maintaining current customer relationships. Expertise Required: We are looking for a range of experience: • Senior Data Scientist: 5+ years’ experience, including taking AI/ML projects into production. About You: The successful candidate must be able to demonstrate the following attributes: Essential • Ability to understand, describe and apply a range of data science techniques to real world problems., • Experience in managing data and implementing data science processes., • Experience in translating customer requirements into technical requirements and development objectives., • Python expertise covering standard data science libraries (NumPy, pandas, matplotlib, Scikit-learn, PyTorch, etc…), web frameworks (Flask or FastAPI) and visualisation (Dash, Plotly, & Streamlit)., • Proficient in SQL., • Working with unstructured data, • Building customer and stakeholder relationships., • Supporting and leading authoring of technical reports and presenting to customers., • Be willing to travel across UK and comfortable to work away from home for periods of time., • Software engineering principles, git, docker, TTD Desirable: • Experience working with secure, air-gapped systems, • We’d love you to bring a strong STEM / computing background., • Knowledge and understanding of UK Defence., • Experience in one or more of the following technical disciplines:, • LLMs, RAG, Agentic AI (e.g. LangGraph)., • Computer Vision., • AI for audio and speech. What we offer We offer a combination of mentoring and internal and external training opportunities, with specialist sector organisations and inhouse courses. You will have exposure to subject matter experts and additional online learning packages. The role comes with a competitive benefits package including: • pension (7% company contribution),, • additional holiday purchase options,, • private health care, life assurance,, • electric vehicle scheme. Other Requirements: • Candidates must have an existing right to live and work in the UK., • Candidates must be willing to undergo an internal baseline personnel security standard check prior to starting their employment with the company., • Candidates must be willing and eligible to complete a United Kingdom Security Vetting (UKSV) security clearance application to the Security Check (SC) level upon starting their employment with the company. To gain SC Clearance you will normally need at least 5 years' UK residency.

The Senior Software Engineer will be a key member of the Systems and Software team within the Programmes area at STS Defence, playing an active role in designing, developing, and maintaining software across the full Software Development Lifecycle; from requirements elicitation through to in-service delivery.The post will provide technical leadership on software projects for key stakeholders and on software development activities undertaken by the company. This includes responsibility for managing code and quality reviews to ensure relevant quality standards are met across the software team.The Senior Software Engineer will also assist in support of wider business objectives exploring new technologies for product creation, development and R&D to grow our software development capability stream; and provide support to existing software projects as required.Duties:The Senior Software Engineer responsible for co-ordination of day to day software development in a small teamDesigning and implementing software changes through change control process as part of spiral developmentContinuous improvement of Software Engineering capabilities, maintaining a leading edge capabilityLeading the planning, delivery and assurance of software work packages and ensuring software engineering process and best practice followedOversight, direction and guidance to the allocated project team members, through the planning and delivery of installation tasks and projectsThe provision of software engineering technical input into bid preparation and contractsOngoing review and improvement of policies, standards and procedures for software engineering activitiesSupport project software requirements including supporting customer and other stakeholder meetings as requiredThe exploitation of opportunities for further business developmentSkills/Qualifications:Degree Qualified (BSc or equivalent) in Software Engineering, Computer Science or equivalent experienceExperience with C++, C#, Java, and web development (HTML, CSS, JS, etc.)Exposure to other embedded development (Linux, bash/shell scripting, terminal command-line scripts, Qt/QML)Strong experience architecting cradle-to-grave software solutions including Technology Readiness level (TRL) processProven track record with creating and maintaining servers, primarily those with versioning control, Bugzilla, project management capabilities and automated testing capabilitiesStrong experience of software development lifecycle processes, ensuring both a quality of process and firm traceability from requirements to implementationExperience of creating and managing cloud-based big data solutions desirableProven track record of working collaboratively with a diverse range of internal and external stakeholdersAdditional InformationSECURITY – All candidates must be in a position to obtain UK security clearance to SC level. Additional restrictions may apply on certain defence programmes.TPBN1_UKTJ

DNA drives the Royal Navy's capability by delivering digital solutions that increase operational efficiency, effectiveness, and availability. Operating across Official and Secret domains, from shore to sea. DNA provides end-to-end support for bespoke and procured applications. We are seeking a detail-oriented and proactive QA Tester. In this role, you will be responsible for ensuring the high quality, performance, and reliability of bespoke software solutions. Working within an agile software house environment, you will collaborate closely with software engineers, product managers, and user-centred designers to catch defects early, refine functionality, and guarantee exceptional user experiences before deployment. Key Responsibilities: • Review product requirements, technical specifications, and user stories to create comprehensive, structured test plans and test cases, • Perform manual functional, integration, usability, cross-browser, and regression testing on web, mobile, and desktop applications, • Identify, log, prioritize, and track software bugs using defect tracking tools (e.g. Jira). Provide clear, step-by-step reproduction steps and diagnostic logs, • Create an automated test framework, write and maintain an automated test suite, • Work directly with software developers to clarify requirements, reproduce intermittent bugs, and verify resolution during bug-fix cycles, • Conduct basic API testing using tools like Postman and verify database state changes using basic SQL queries, • Take part in active sprint ceremonies including daily stand-ups, backlog refinement, sprint planning, and retrospectives to advocate for product quality, • Maintain up-to-date test suites, user guides, and release verification checklistsSFIA Level 5 RequirementsMust haves: • 3+ years of experience as a QA Tester, Software Tester, or similar role within a software house or agile development environment, • Strong understanding of software QA methodologies, testing types (functional, smoke, sanity, regression), and the Software Development Life Cycle (SDLC), • Hands-on experience with test management and bug-tracking platforms (e.g. Jira, TestRail, Azure DevOps), • Basic knowledge of web technologies (HTML, CSS, JavaScript) and browser developer tools to inspect elements and monitor network requests, • Basic familiarity with REST API testing tools (e.g. Postman, Insomnia), • Exceptional attention to detail, strong analytical skills, and clear written/verbal communication to articulate technical issues concisely to both technical and non-technical stakeholdersNice to haves:, • Experience working within MOD or defenceBenefitsStart date: On or around 4th November 2026 Initial contract length: 6 months with possibility of extension Role location: Portsmouth Nationality specification: Sole British Citizen only Number of days per week expected on site: 1-2 per sprint (fortnightly) Minimum security level: SC or above Day rate: £515 #J-18808-Ljbffr

DNA drives the Royal Navy’s capability by delivering digital solutions that increase operational efficiency, effectiveness, and availability. Operating across Official and Secret domains, from shore to sea. DNA provides end-to-end support for bespoke and procured applications. We are seeking a detail-oriented and proactive QA Tester. In this role, you will be responsible for ensuring the high quality, performance, and reliability of bespoke software solutions. Working within an agile software house environment, you will collaborate closely with software engineers, product managers, and user-centred designers to catch defects early, refine functionality, and guarantee exceptional user experiences before deployment. • Review product requirements, technical specifications, and user stories to create comprehensive, structured test plans and test cases., • Perform manual functional, integration, usability, cross-browser, and regression testing on web, mobile, and desktop applications., • Identify, log, prioritize, and track software bugs using defect tracking tools (e.g. Jira). Provide clear, step-by-step reproduction steps and diagnostic logs., • Create an automated test framework, write and maintain an automated test suite., • Work directly with software developers to clarify requirements, reproduce intermittent bugs, and verify resolution during bug-fix cycles., • Conduct basic API testing using tools like Postman and verify database state changes using basic SQL queries., • Take part in active sprint ceremonies including daily stand-ups, backlog refinement, sprint planning, and retrospectives to advocate for product quality., • Maintain up-to-date test suites, user guides, and release verification checklists. SFIA Level 5 • 3+ years of experience as a QA Tester, Software Tester, or similar role within a software house or agile development environment., • Strong understanding of software QA methodologies, testing types (functional, smoke, sanity, regression), and the Software Development Life Cycle (SDLC)., • Hands-on experience with test management and bug-tracking platforms (e.g. Jira, TestRail, Azure DevOps)., • Basic knowledge of web technologies (HTML, CSS, JavaScript) and browser developer tools to inspect elements and monitor network requests., • Basic familiarity with REST API testing tools (e.g. Postman, Insomnia)., • Exceptional attention to detail, strong analytical skills, and clear written/verbal communication to articulate technical issues concisely to both technical and non-technical stakeholders., • Experience working within MOD or defence. Start date: On or around 4th November 2026 Initial contract length: 6 months with possibility of extension Role location: Portsmouth Nationality specification: Sole British Citizen only Number of days per week expected on site: 1-2 per sprint (fortnightly) Minimum security level: SC or above Day rate: £515 #J-18808-Ljbffr