ESN Engineer - SC Cleared

Tesol Inc; City Of London; On-site; GBP 75,000 - 110,000; Full time

Job summary

Tesol Inc is seeking a Senior Technical Assurance Specialist to support ESN Control Room systems in a contract role. The candidate will lead technical assurance, review supplier designs and ensure integration with the ESN environment, including C&C, CAD/GIS, and telephony interfaces.

The role requires strong experience in technical assurance, systems engineering, and working with complex, mission-critical environments.

Qualifications

• Significant experience in technical assurance, systems engineering, or design integration.
• Proven ability to review complex architecture and design documentation.
• Strong knowledge of telecommunications systems and 3GPP standards.

Responsibilities

• Lead technical assurance activities reviewing supplier architecture, design and delivery docs.
• Act as technical lead for key Control Room tech areas and coordinate end-to-end design reviews.
• Review ICDs and interfaces, identify risks, gaps and clarification needs.
• Ensure Control Room systems integrate with the ESN environment and wider architecture.
• Support RAID logging, project governance and regular reporting on technical risks and design assurance activities.
• Contribute to technical requirements for Control Room suppliers (Voice Recording, PBX, CAD/GIS, Mobile Data Gateway).
• Provide input into test strategies and assurance activities.
• Engage with stakeholders to support effective delivery and informed decision making.

Skills

Technical assurance

Systems engineering

Design review

3GPP standards

Stakeholder management

Risk & issue management

Job description

Technical Assurance Specialist - ESN Control Room - SC Cleared

Contract | Senior Technical Assurance / Systems Engineering

We are looking for an experienced Technical Assurance Specialist to support a major programme involving the design, integration and delivery of Emergency Services Network (ESN) Control Room systems. The successful candidate will provide technical leadership and assurance across a range of Control Room technologies, reviewing supplier design and delivery documentation and ensuring proposed solutions meet the required technical, integration and contractual requirements.

Key Responsibilities

• Lead technical assurance activities through the review and assessment of supplier architecture, design and delivery documentation.
• Act as a designated technical lead for key Control Room technology areas, coordinating and executing end-to-end design reviews.
• Review Control Room architecture, technical designs and Interface Control Documents (ICDs), identifying technical risks, gaps and areas requiring further clarification.
• Provide assurance that Control Room systems integrate effectively with the wider ESN environment.
• Support technical assurance across Command & Control (C&C), CAD/GIS, Integrated Communications Systems (ICCS), PBX/PTN telephony, Voice Recording and Mobile Data Gateway solutions.
• Assess supplier proposals against technical requirements, design principles, standards and contractual obligations.
• Support the timely resolution of technical actions, risks and issues arising from design reviews.
• Participate in technical and Control Room project meetings, supplier workshops and technical discussions.
• Provide technical advice relating to 3GPP standards compliance, system integration, design risks and future ESN Control Room requirements.
• Contribute to technical RAID logs, project governance and regular reporting on technical risks, issues and design assurance activities.
• Support the development of technical requirements and specifications for Control Room suppliers, including Voice Recording, PBX, CAD/GIS and Mobile Data Gateway solutions.
• Support the assessment and resolution of technical issues raised through the Control Room supplier delivery process.
• Provide technical input into test strategies and assurance activities.
• Work closely with project stakeholders and User Organisation representatives to support technical engagement and effective delivery.

Key Outcomes

• Timely and thorough review of Control Room architecture and design documentation.
• Effective technical assurance of Control Room system integration.
• Identification and resolution of technical design issues.
• Assurance that ESN Control Room systems meet the required technical and compliance standards.
• Technical input and assurance for test strategies.
• Clear and regular reporting into project governance.
• Effective technical oversight of supplier deliverables, enabling the project team to hold suppliers accountable for their obligations.

Key Skills & Experience

• Significant experience in technical assurance, systems engineering, technical design or systems integration.
• Experience reviewing complex technical architecture and design documentation.
• Strong understanding of telecommunications and communications systems.
• Experience with 3GPP standards, mobile communications or related telecoms technologies.
• Experience working with technical suppliers and challenging/assuring their designs and deliverables.
• Strong understanding of systems integration, interfaces, requirements and technical verification.
• Experience producing or reviewing technical requirements, specifications and Interface Control Documents.
• Strong stakeholder management and communication skills, with the ability to engage technical suppliers and senior project stakeholders.
• Experience managing technical risks, issues and actions within a structured project environment.
• Experience within mission-critical, emergency services, control room, telecommunications or similarly complex environments would be highly advantageous.