Data Scientist

Sirius Analysis; Portsmouth; Hybrid; GBP 54,000 - 66,000; Full time

Benefits offered by this job

pension (7% company contribution)

additional holiday purchase options

private health care

life assurance

electric vehicle scheme

Job summary

Sirius Analysis in Portsmouth invites a Senior Data Scientist to join our Operational Analysis & Data Science team. You will deliver AI/ML solutions for defence and civilian clients, translating complex requirements into production-ready models and dashboards.

You will lead technical consulting projects, collaborate with engineers, analysts and stakeholders, and travel within the UK as needed. A strong background in Python, ML, NLP and secure data handling is essential.

Qualifications

• 5+ years' experience in data science or AI/ML consulting.
• Experience taking AI/ML projects into production.
• Ability to translate client needs into technical requirements.
• Proficiency with Python data stack and web frameworks.
• Experience with unstructured data.

Responsibilities

• Lead and deliver technical consulting projects.
• Develop AI/ML solutions using ML, NLP, LLMs.
• Build and maintain client relationships.

Skills

Python

SQL

ML

NLP

LLMs

PyTorch

Flask

FastAPI

Dash

Plotly

Streamlit

Git

Docker

Job description

Role: 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.