Project Manager

Sirius Digital Services; Portsmouth; Hybrid; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Pension 7% company contribution

Holiday purchase options

Electric vehicle scheme

Job summary

Sirius Digital Services in the United Kingdom is seeking a delivery‑focused Project Manager to support agile and waterfall projects across defence, energy, transport and health. You will join a practitioner‑led team delivering modelling, simulation and autonomy projects using cutting edge technology.

You will be the right-hand support to the Portfolio Manager, embedding agile maturity, governance and robust reporting across a growing portfolio.

Qualifications

• Proven experience in project, programme, or portfolio management roles with cyber, digital or software projects.
• Educated to degree level or equivalent.
• Hold a professional project management qualification (APM, APMG Agile PM, PRINCE2, MSP). Agile & SAFe certified.
• Experience using Jira, Asana or Trello.
• Strong track record delivering projects on time, cost and quality using agile and hybrid methods.
• Experience in consultancy or government client environments.

Responsibilities

• Provide end-to-end project and programme management support to ensure delivery to time, cost, and quality standards.
• Lead the planning, execution, and monitoring of projects including resource management, risk assessment, and progress reporting.
• Apply agile and waterfall methodologies (Scrum, SAFe) and hybrid frameworks to drive efficiency.
• Act as Scrum Master, facilitating ceremonies and promoting agile maturity across teams.
• Deliver quality controls and comply with the Quality Management System (QMS).
• Facilitate stakeholder management and maintain relationships with internal and external stakeholders.
• Monitor project performance using key metrics and provide insights to senior leaders.
• Prepare project plans, proposals, and client reports for consistency and client satisfaction.
• Drive information management and dashboards across the company.
• Support business development activities including bid preparation and framework management.
• Represent the company in client-facing roles with professionalism and delivery excellence.
• Adapt to changing priorities and manage multiple projects; contribute to Sirius P3M Community.

Skills

Delivery leadership

Stakeholder engagement

Hybrid agile delivery

Program/project management

Communication

Education

Degree or equivalent

PM certification (APM/PRINCE2/SAFe)

Tools

Jira

Asana

Trello

Job description

Sirius Digital are a rapidly growing software engineering 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 software engineering services. This role offers the opportunity to work with these teams to operate across multiple sectors, including defence, energy, transport and health, and contribute to the development of cutting-edge solutions.

We are seeking a Project Manager to support the delivery of a range of high-profile Agile and Waterfall technology projects within the business. This is a unique opportunity to join a practitioner-led team working on projects that have real impact, in modelling & simulation and autonomy.

You will be joining a forward-thinking function at a pivotal moment, playing a key role in helping the business mature its agile delivery capability and strengthen project governance across a growing portfolio.

The Role

As a Project Manager, you will be the right-hand support to the Portfolio Manager, leading from the front to drive delivery excellence, and embed agile and waterfall practices within our software development projects that deliver key tools to our customers in areas such as Modelling & Simulation and Autonomy projects using cutting edge technology

Responsibilities will include:

• Provide end-to-end project and programme management support, ensuring the delivery of tasks to time, cost, and quality standards.
• Lead the planning, execution, and monitoring of projects, including resource management, risk assessment, and progress reporting.
• Apply agile and waterfall methodologies (Scrum, SAFe) and hybrid frameworks to drive consistency and efficiency.
• Act as Scrum Master, facilitating ceremonies and promoting agile maturity across teams.
• Deliver quality controls and standards on projects in line with the organisation’s Quality Management System (QMS).
• Facilitate stakeholder management by developing and maintaining effective relationships with internal and external stakeholders.
• Monitor project performance using key metrics, analysing trends and providing actionable insights to senior leaders.
• Lead the preparation of project plans, proposals, and reports to ensure consistency and adherence to client requirements.
• Drive information management across the company, contributing to the development and maintenance of robust data systems and dashboards.
• Support business development activities, including bid preparation and framework management.
• Represent the company in client-facing roles, maintaining high standards of professionalism and delivery excellence.
• Adapt to changing priorities and manage multiple projects simultaneously in a dynamic environment.Contributing to the Sirius P3M Community of practice

About You:

You are a delivery-focused project manager who thrives in structured and complex environments. You combine hands-on delivery capability with the ability to engage senior stakeholders and the agility to adapt to a hybrid (agile/waterfall) setting. The successful candidate must demonstrate the following attributes:

• Proven experience in project, programme, or portfolio management roles with cyber, digital or software projects
• Educated to degree level or equivalent
• Hold a relevant professional project management qualification (e.g. APM, APMG Agile PM, PRINCE2, MSP)Agile and waterfall background, ideally Scrum Master or SAFe certified.
• Experience of using tools such as Jira, Asana or Trello
• Strong track record of delivering projects to time, cost, and quality standards using agile and hybrid methodologies.
• Experience working in a consultancy environment or with government clients.

Demonstrable experience in:

• Delivering quality on projects
• Managing multiple projects simultaneously
• Managing stakeholder relationships effectively
• Supporting teams in dynamic, multi-disciplinary environments
• Excellent communication, presentation, and report-writing skills.
• Strong attention to detail and organisational skills, with the ability to prioritise workloads under pressure.
• Membership of a professional body (e.g., APM, PMI) and a desire for continued professional development.
• Ability to travel to client sites across England as required. (Predominantly South and South-West Regions), and the opportunity for occasional international travel.

Technical specialism in aspects of project management e.g. risk management, benefits assessment / realisation, stakeholder analysis, requirements management, Cost budgeting and forecasting. Familiarity with frameworks such as Lean, or Six Sigma.

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,
• 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.