Senior technical assurance engineer

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Competitive salary with excellent benefits package

Working Hours: 40

Location: London

Closing Date: 23/06/2026

Function: Structures & Earthworks

Team: Completion & Transitions

Job Introduction

The Technical Assurance (TA) team are responsible for capturing, developing and demonstrating compliance to Stakeholder requirements, facilitating configuration and technical change management, and managing technical assurance activities to achieve self‑assured delivery of the project.

The Technical Assurance Senior Engineer will be responsible for planning the assurance and certification strategy for several Design and Construction Work Packages and agreeing the acceptance criteria with HS2, enabling the project to accept that the requirements and design intent being delivered by the SCSJV and its subcontractors meet the needs and objectives of HS2 and DfT as sponsor.

The Technical Assurance Senior Engineer reports to the Technical Assurance Lead, and will work closely with the Requirements Manager and key technical leads within the project team to define work package requirement sets, along with planning the appropriate verification & validation methods to demonstrate compliance. The Technical Assurance Senior Engineer will support further activities relating to Technical Assurance, Configuration and Technical Change Management.

Flexible working: We welcome you to ask about the flexibility you need. This might be part‑time, remote working, or compressed hours, for example. Anyone who applies for a role can ask about flexibility at interview. In return, we will explore what is possible for the role.

Main Responsibilities

• Produce and manage the development of Technical Assurance Plans for specific Work Packages in collaboration with the work package managers, subject matter experts, stakeholders and the employer.
• Manage collaboratively and effectively with project delivery teams, project leadership, clients, sub‑contractors, regulatory bodies and other major stakeholders.
• Review the quality and completeness of assurance packs and TA documents by notifying reviewers in advance of planned reviews, following up reviews to ensure that they are completed on time, chasing up closure of comments, and informing the document control team when reviews are complete so the deliverables can be processed.
• Monitor and follow up progress reviews, tracking and reporting of assured deliverables and associated certification to meet the project programme.
• Carry out assessment of TA readiness to proceed to interdisciplinary design reviews and project lifecycle stage gates.
• Produce and maintain Technical Assurance deliverables for assets and Work Packages (e.g. Asset Strategy Certification, Single Assurance Packs, Work Package Completion Certificates, Verification and validation matrix, As‑built Verification Report, U&As etc.) to facilitate completion of project lifecycle stage gates.
• Deliver presentation of West Delivery Unit stage gate assurance packs for Level 3 lifecycle stage gate SCS/HS2 acceptance panels.
• Conduct guidance and mentoring to design and construction teams on what they must do to achieve HS2 Technical Assurance.
• Manage the identification and breakdown of new and existing requirements.
• Understand BIM requirements and be able to use multiple quality management platforms.
• Contribute to the continued improvement of the technical assurance strategy, processes and systems, capturing lessons learnt.
• Deliver technical assurance communications such as staff briefings and technical assurance awareness training.
• Understand the Client and Joint Venture Partners' Environment and Sustainability Policies, Processes and statutory requirements as they affect the company’s operations, and ensure that the requirements, as applicable within their discipline, are implemented on the project.

The Ideal Candidate

• Engineering Degree / HND or equivalent.
• Experience of management and leadership of teams.
• Strong attention to detail, with the ability to problem‑solve and work flexibly.
• Proficiency in MS Word, MS Excel and MS Outlook a must.
• Excellent verbal and written communication skills and interpersonal skills. Able to effectively communicate technical assurance and system engineering concepts to a variety of audiences.
• Awareness of the various disciplines involved in delivering major projects, their roles and responsibilities and their relationship to assurance.
• Good information management and analytical skills, able to efficiently seek out the relevant and pertinent points from volumes of project information.
• Good understanding of Technical Assurance, BIM, Handover, Reporting.

About The Company

The role will work on the HS2 project. HS2 is the UK’s new high‑speed rail network. It will be a catalyst for economic growth across Britain, freeing up space on the existing railways and connecting eight of the UK’s ten biggest cities with fast, reliable and frequent high‑speed services.

The Skanska | Costain | STRABAG (SCS JV) is delivering the HS2 London Tunnels Contract. Scope of works includes twin‑bored tunnels (TBM), SCL tunnels, shaft sinking, bridge demolition and reconstruction, services diversions, earthworks and the construction of site compounds.

HS2 – working with Skanska, Costain and STRABAG, closely monitors job applications to ensure an inclusive recruitment process. To maintain this and to recruit a diverse workforce, we require candidates to complete the diversity form as part of their application so we can monitor and improve our approach to diversity. Please note, all responses are anonymous and we will not share any of your data with other parties. All data will be held securely, as stated within the Data Protection Act 1998, and will be reported to HS2.

All employees, Design House and Supply Chains must implement and comply with the requirements of ISO 9001:2015 Quality Management System, ISO 14001:2015 Environmental Management System, OHSAS 18001:2017 Occupational Health and Safety Management Systems and ISO/IEC 27001:2013 Information Security Management System, and statutory requirements as they affect the Joint Venture’s operations and as applicable within their discipline.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

SCS Railways is a Disability Confident Leader. We want to encourage disabled people to apply for our roles and have an opportunity to display your skills, talent, and abilities. We will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this position will be offered an interview.

Please see the disability confident commitments:

To be considered for an interview under this scheme you have:

• A physical or mental impairment, which has a substantial and long‑term effect (over 12 months) adverse effect on your ability to carry out normal day‑to‑day activities.
• Demonstrated in your application and pre‑interview stage that you meet the minimum job criteria and person specification for the role.