SRT Marine Systems plc
Cost and Commercial Manager

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SRT Marine Systems plc
SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base.
The company has a worldwide impact in the marine sector by leading the next generation of maritime domain awareness technologies “MDA”, products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners.
SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in order to deliver better products and services to our customers. We strive to make SRT a rewarding and challenging place to work, where talented, hard-working individuals have the opportunity to make a real impact across the safety and security in the maritime and marine industry.
Role overview of our Cost and Commercial Manager
This is a new role with significant responsibilities. We are seeking an experienced Cost and Commercial Manager to take commercial responsibility for infrastructure and civil engineering projects involving multiple subcontractors and specialist work packages.
Working closely with the Project/Programme Director’s, the Cost and Commercial Manager will provide strong commercial oversight across multiple subcontractors, ensuring each project remains within budget, and that contractual and commercial exposure is effectively controlled.
The role is particularly suited to someone who is commercially astute, confident in negotiation and comfortable challenging subcontractors on cost, scope, entitlement and performance. You should be able to operate at both a strategic project and detailed work package level.
The role of Cost and Commercial Manager role is based from our Bristol office with flexibility for Hybrid working.
Responsibilities - Cost and Commercial Manager (not exhaustive)
Subcontract Commercial Management
- Take overall commercial and performance responsibility for multiple subcontract packages across infrastructure and civils projects, from procurement and contract award through to final account.
- Maintain accurate cost reports and provide consolidated commercial reporting for the project.
- Establish clear commercial strategies for each subcontract package, aligned with the overall project budget and delivery strategy. Including scopes, pricing, exclusions, assumptions and contractual obligations to identify commercial gaps and risks.
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Cost Control & Forecasting
- Identify emerging cost pressures early and work with the delivery team to implement mitigation measures.
- Monitor subcontractor spend against the approved work package budget and report exceptions.
- Provide senior management with a clear view of the project's current and forecast commercial position.
Subcontract Procurement & Contract Award
- Lead and support subcontract negotiations to achieve best value and appropriate risk allocation.
- Ensure scope, programme, deliverables, payment mechanisms and commercial assumptions are clearly defined before contract award and establish robust subcontract budgets and ensure awarded values are correctly incorporated into the project cost plan.
- Work with procurement and delivery teams to ensure packages are awarded in line with project requirements.
- Review and commercially evaluate subcontractor tenders and quotations, undertake tender comparisons and identify anomalies, exclusions and commercial qualifications.
Change, Variations & Claims
- Manage the commercial process for subcontractor variations, compensation events, claims and additional works, ensuring subcontractors provide timely notification and supporting evidence for changes.
- Challenge unsupported or inflated subcontractor claims and negotiate commercially appropriate settlements and assess entitlement, valuation and impact of subcontractor claims.
- Identify opportunities to recover additional costs from the client where subcontractor changes arise from client or third-party events by maintaining a clear audit trail of all subcontractor changes and commercial agreements, ensuring alignment between upstream client entitlement and downstream subcontractor liability.
Contract Administration
- Administer subcontract agreements in accordance with the applicable contract conditions.
- Monitor compliance with contractual notice periods, payment provisions, programme requirements and change mechanisms.
- Manage subcontractor non-performance, delays, defects, disruption and other commercial issues in conjunction with the project team.


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Subcontractor Performance
- Monitor subcontractor performance against cost, programme, scope and contractual obligations and establish regular commercial reviews with key subcontractors.
- Identify early warning indicators of commercial deterioration or potential claims and work closely with project delivery and planning teams to understand the commercial impact of programme changes and delays.
- Challenge subcontractor performance where costs or outputs are not aligned with contractual requirements and develop recovery and mitigation strategies where subcontract packages are underperforming.
Final Accounts & Close-Out
- Lead the preparation, negotiation and settlement of subcontractor final accounts, ensuring all variations, claims, omissions, contra-charges and outstanding commercial issues are resolved.
- Reconcile subcontractor final accounts against the project cost plan and approved changes, ensuring final account settlements are commercially robust and properly documented.
Skills & Experience - Cost and Commercial Manager (not exhaustive)
- ESSENTIAL - Degree or professional qualification in Quantity Surveying, Commercial Management, Construction Management, Civil Engineering or a related discipline.
- Significant commercial management experience within infrastructure, civil engineering or major construction projects.
- Proven experience managing multiple subcontractors and work packages simultaneously.
- Strong experience in subcontract procurement, commercial negotiation, contract administration and managing subcontractor applications, payments, variations, claims and final accounts.
- Appreciation of cultural differences in overseas territories and ability to communicate well with customers and advisors overseas.
Benefits
- Highly Competitive Salary
- Private Healthcare
- Matched pension up to 5% company contribution
Please note - This role will require occasional overseas travel as required by the business
SRT Marine Systems plc are an equal opportunity employer.
We are committed to creating an inclusive working environment for all employees and actively encourage applications from all sectors of the community.
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