Lead Solution Architect

Southern Water; Worthing; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Southern Water is recruiting a Lead Solution Architect for a hybrid role based in Durrington. You will lead the Solution Architecture function, ensure quality and governance across initiatives, and align architecture with enterprise direction.

You will line-manage Architects, drive capability development, and own resourcing and delivery governance to ensure consistent architectural outcomes across projects. This role demands strong leadership and stakeholder influence.

Qualifications

• Significant skills & competency in IT Architecture across multiple initiatives.
• Experience leading architecture teams and delivering governance.
• Strong stakeholder management and influencing abilities.

Responsibilities

• Lead and manage the Solution Architecture function across the organisation.
• Embed consistent architecture practices and patterns aligned with Enterprise Architecture.
• Act as final delegated authority for solution design and governance.

Skills

Solution Architecture

People Management

Governance

Stakeholder Management

Cloud Platforms

Security Architecture

Data & Analytics

Integration & SOA

Job description

Contract Type: Permanent

Salary: Competitive depending on skills and experience

Closing Date: 2026-09-01

Job Title: Lead Solution Architect

Location: Durrington (Hybrid)

Contract Type: Permanent

Salary: Competitive depending on skills and experience

The Lead Solution Architect is accountable for the leadership, quality, and effective deployment of Solution Architecture across the organisation. The role ensures that architecture support is aligned to demand, consistently delivered to a high standard, and aligned with Enterprise Architecture direction through effective governance and decision-making.

This role provides line management for Solution Architects, owns resourcing across initiatives, and drives capability development and architectural consistency across all solution architecture activity and technical governance. This role ensures delivery alignment to enterprise architecture strategy and roadmaps through governance and assurance.

Solution Architecture Leadership

• Lead and manage the Solution Architecture function across the organisation
• Establish and embed consistent solution architecture practices, standards, patterns, and ways of working, aligned with Enterprise Architecture direction
• Act as the final delegated authority for solution design, assuring quality, consistency, and alignment with Enterprise Architecture direction

People Management & Capability Development

• Line manage Solution Architects, including performance, development, and engagement
• Coach and mentor architects to improve capability and influence
• Identify capability gaps and support recruitment and development plans

Demand & Resource Management

• Own allocation of Solution Architects across initiatives
• Work with demand management to ensure early visibility and engagement
• Ensure adequate architecture coverage for intake, assessment, shaping, and delivery
• Manage capacity planning and resolve resource conflicts

Architecture Delivery & Assurance

• Ensure quality and consistency of architecture artefacts (e.g. HLDs, Impact Assessments, Solution Options)
• Act as a quality gate for solution designs prior to governance
• Ensure alignment to architecture principles, patterns, and standards

Governance & Stakeholder Engagement

• Lead solution architecture and technical governance forums, ensuring timely, high-quality decisions and clear outcomes
• Act as the escalation point for solution-level design decisions, providing final delegated decisions where appropriate and escalating exceptions for resolution
• Build strong relationships with programme, product, engineering, and business stakeholders

Skills & Competencies

The candidate must have significant skills & competency in IT Architecture which include the following:

• Solution Architecture – Leads the development and assurance of solution architectures across multiple initiatives.
• Leadership - Provides leadership for the Solution Architecture practice, setting delivery priorities, assuring quality, and enabling effective governance in line with Enterprise Architecture direction.
• People Management – Manages, develops, and mentors Solution Architects, supporting performance, growth, and retention.
• Enterprise IT Governance – Applies governance to architecture decisions, ensuring consistency, compliance, and reuse.
• Systems Design – Reviews and assures system designs for quality, scalability, and supportability.
• Stakeholder Relationship Management – Builds and maintains effective stakeholder relationships.
• Decision Making & Design Authority – Makes timely, well-evidenced architecture decisions, balancing risk, cost, delivery, and strategic alignment.
• Architecture Assurance & Risk – Assures solutions against principles and non-functional requirements (e.g. security, resilience, performance), identifying and managing design risks and technical debt.
• Commercial & Vendor Management – Evaluates vendor/third-party solutions and commercial options, assuring fit, value, and contractual alignment to architecture standards.
• Communication & Governance Facilitation – Leads governance discussions, communicates complex technical topics clearly, and drives decisions to documented outcomes.
• Methods and Tools – Defines and embeds architecture methods, standards, and tooling.

Knowledge

• Strong experience in Solution Architecture leadership within complex environments
• Proven ability to manage and develop high-performing architecture teams
• Experience in demand management, capacity planning, and resource allocation
• Strong understanding of architecture governance and design assurance
• Excellent stakeholder management and influencing skills
• Experience working across projects, platforms, and product-based delivery models
• Software design (Utilities, regulated industries)
• Data & Analytics
• Integration & service orientated design
• Software delivery (Waterfall, Agile)
• Security architecture and secure-by-design principles (e.g. identity, data protection, threat modelling)
• Cloud and platform concepts (IaaS/PaaS/SaaS), including landing zones, networking, and cost/performance trade-offs
• Service management and operability (monitoring, incident/problem management, support model, SLAs/SLOs)
• Risk, compliance, and regulatory considerations relevant to utilities, including auditability and traceability of design decisions
• Knowledge of solutions used within the Utilities / Water sector

Onsite a minimum of 2 days per week in Durrington office.