Solutions Architect

Matchtech; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Matchtech seeks an experienced Unified Communications Solution Lead to design, develop and deliver secure voice, video, messaging and collaboration solutions within highly regulated defence environments.

The role focuses on architecture, integration and governance of enterprise-scale UC platforms across segregated networks, with strong emphasis on interoperability, resilience and information assurance. DV clearance is required.

Qualifications

• Experience designing Unified Communications solutions for secure, regulated environments.
• Proven ability to produce High-Level Designs (HLDs) and Low-Level Designs (LLDs).
• Strong knowledge of SIP, VoIP, call routing, telephony integration, and collaboration platforms.
• Experience managing technical stakeholders and delivering complex projects.

Responsibilities

• Produce and own HLDs and LLDs for UC solutions.
• Design scalable, secure voice, video and collaboration services.
• Deploy secure cross-domain solutions and MLS gateways for inter-network communication.
• Define end-to-end architectures covering SIP, VoIP, telephony and collaboration platforms.
• Ensure designs meet defence security standards and governance processes.

Skills

HLD/LLD

SIP & VoIP

Cross-Domain Architecture

Security Architecture

Defence environments

Stakeholder management

Technical leadership

Architectural governance

Job description

We are seeking an experienced Unified Communications (UC) Solution Lead to design, develop and deliver secure communication and collaboration solutions within highly regulated defence environments.

The successful candidate will lead the architecture and integration of enterprise-scale Unified Communications platforms, enabling secure voice, video, messaging and collaboration services across complex and segregated network environments. This role requires a strong blend of technical leadership, stakeholder management and secure solution design expertise, with a particular focus on interoperability, resilience and information assurance.

Responsibilities:

• Produce and own High-Level Designs (HLDs) and Low-Level Designs (LLDs) for Unified Communications solutions.
• Design scalable, resilient and secure voice, video and collaboration services aligned to customer requirements.
• Design and deploy secure cross-domain solutions (CDS), guards, and multi-level security (MLS) gateways that allow video, voice, and chat to flow securely between separate classified or isolated networks.
• Define end-to-end technical architectures covering
• SIP and VoIP services
• Telephony and call routing platforms
• Instant Messaging and Presence services
• Collaboration and productivity platforms
• Ensure designs adhere to defence security standards, accreditation requirements and architectural governance processes.
• Active DV Clearance
• Strong understanding of SIP, VoIP, Call routing, Telephony integration
• Proven experience producing High-Level Design (HLD) and Low-Level Design (LLD) documentation.
• Ability to act as a senior technical point of contact for customers and stakeholders.
• Demonstrable experience managing technical stakeholders and supporting complex project delivery.
• Experience operating within secure, mission-critical or defence environments.
• Desired skill: Knowledge of Cross-Domain Architecture, including multi-security domain communications.