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Southern Water

Water and wastewater services provider

Lead Solution Architect

Engineering LeadershipPosted on Nov 10
Full-timeDurrington, Salisbury, UKNo salary listed

About the Job

Requirements

  • Significant skills and competency in IT architecture, including solution architecture leadership across multiple initiatives.
  • Experience leading the Solution Architecture practice, setting delivery priorities, assuring quality, and enabling governance aligned with Enterprise Architecture direction.
  • Experience managing, developing, and mentoring Solution Architects, supporting performance, growth, and retention.
  • Knowledge of enterprise IT governance and applying governance to architecture decisions for consistency, compliance, and reuse.
  • Ability to review and assure systems designs for quality, scalability, and supportability.
  • Ability to make timely, well-evidenced architecture decisions balancing risk, cost, delivery, and strategic alignment.
  • Knowledge of architecture assurance and risk, including assuring solutions against principles and non-functional requirements such as security, resilience, and performance, and managing design risks and technical debt.
  • Experience evaluating vendor and third-party solutions and commercial options for fit, value, and contractual alignment with architecture standards.
  • Knowledge of architecture methods, standards, and tools.
  • 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.
  • Experience working across projects, platforms, and product-based delivery models.
  • Knowledge of software design in utilities or regulated industries.
  • Knowledge of data and analytics.
  • Knowledge of integration and service-oriented design.
  • Knowledge of software delivery using Waterfall and Agile.
  • Knowledge of security architecture and secure-by-design principles, including identity, data protection, and threat modelling.
  • Knowledge of cloud and platform concepts (IaaS/PaaS/SaaS), including landing zones, networking, and cost/performance trade-offs.
  • Knowledge of service management and operability, including monitoring, incident/problem management, support models, and SLAs/SLOs.
  • Knowledge of risk, compliance, and regulatory considerations relevant to utilities, including auditability and traceability of design decisions.
  • Knowledge of solutions used within the Utilities/Water sector.

Responsibilities

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

About the Company

Southern Water

Water and wastewater services provider

Southern Water provides water supply and wastewater services in Kent, Sussex, Hampshire and the Isle of Wight. It draws water from natural sources, treats it to drinking standards, stores and distributes it, and collects and treats wastewater through a network of treatment works, reservoirs, and pipes. The company differentiates itself as a privately owned regional utility that has attracted large capital investments and has faced regulatory scrutiny over environmental performance and reporting. Its goal is to deliver reliable water and wastewater services that meet regulatory requirements while delivering value to investors.

Company size
1,001-5,000
Company stage
Growth Equity (Non-Venture Capital)
Total funding
$2B
Headquarters
Worthing, United Kingdom
Founded
1989

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