SC Cleared Lead System Architect (Pega)- Public Sector

Square One Resources; United Kingdom; Remote; GBP 106,000 - 115,000; Full time

Benefits offered by this job

Govt project exposure

Own architecture decisions

Mentor technical teams

Secure, scalable Pega solutions

Job summary

Square One Resources is recruiting a Lead System Architect (Pega) for a UK-based remote role. You will own the technical direction of a large-scale Pega solution, lead development teams and ensure security, performance and compliance with Pega guardrails.

The role requires active SC clearance, CLSA certification, and extensive Pega experience. Competitive daily rate and a 6-month initial contract are on offer.

Qualifications

• Active SC clearance mandatory.
• Pega CLSA Part 1 and Part 2 completed.
• Extensive experience delivering large-scale Pega Platform implementations as Lead System Architect.
• Strong knowledge of Pega Infinity, case management, data modelling and integrations.
• Proven experience leading and mentoring distributed development teams and enforcing architectural standards.
• Experience with Agile methodologies and Pega Express delivery.

Responsibilities

• Own the technical design authority: high-level architecture, design, layering & data modelling.
• Design and oversee integrations with government back-end systems (REST, SOAP, Kafka, file interfaces).
• Lead security design (SSO, SAML, OAuth 2.0, RBAC/ABAC) and non-functional requirements.
• Mentor senior architects; establish development standards and Pega guardrail compliance.
• Drive DevOps: CI/CD, automated testing, PegaUnit and branching strategies.
• Collaborate with the Business Architect to translate requirements and present designs.

Skills

Active SC clearance

CLSA certification

Pega platform leadership

Pega performance tuning

Leading distributed teams

Agile / Pega Express

Job description

SC Cleared Lead System Architect (Pega)Job Title: Lead System Architect (Pega)
Location: UK Based Remote Role
Salary/Rate: £575 -£625 a day
Start Date: Mid November
Job Type: Inital 6 Month Contract Opportunity

Company Introduction

We have an exciting opportunity available with a leading UK government organisation, seeking an experienced Lead System Architect (Pega) to own the technical architecture and design authority for a large-scale Pega application. This is an excellent opportunity to lead technical delivery, shape architectural decisions and ensure the delivery of secure, scalable and high-performing solutions.

Job Responsibilities/Objectives

You will be responsible for defining the technical direction of the Pega solution, leading development teams and ensuring the application meets business requirements and Pega best practices.

1. Own the technical design authority, covering high-level architecture, detailed design, application layering, class structures, reuse strategies and data modelling.

2. Design and oversee integrations with government Back End systems using REST, SOAP, Kafka, file-based interfaces and database connectors.

3. Lead security design, including SSO, SAML, OAuth 2.0, RBAC, ABAC and data protection, alongside non-functional requirements covering performance, scalability, resilience and auditability.

4. Lead, mentor and conduct code reviews for Senior System Architects and System Architects, establishing development standards and ensuring Pega guardrail compliance.

5. Drive DevOps best practices, including Deployment Manager, CI/CD pipelines, automated testing, PegaUnit and scenario testing, as well as branch and merge strategies.

6. Work closely with the Lead Business Architect to translate business requirements into technical solutions, produce architecture documentation and present designs to architecture review boards.

Required Skills/Experience

The ideal candidate will have the following:

1. Active SC security clearance - mandatory. Candidates without current, active SC clearance cannot be considered.

2. Pega Certified Lead System Architect (CLSA), with both Part 1 and Part 2 completed.

3. Extensive experience delivering large-scale Pega Platform implementations as a Lead System Architect, with strong knowledge of Pega Infinity, case management, data modelling and integrations.

4. Strong experience in Pega performance tuning and troubleshooting, including PAL, PDC and DB Tracer.

5. Proven experience leading and mentoring distributed development teams, acting as the technical design authority and enforcing architectural standards.

6. Experience working with Agile methodologies and Pega Express delivery.

Desirable Skills/Experience

Although not essential, the following skills are desired by the client:

1. UK government or public-sector Pega delivery experience.

2. Experience with Pega Constellation architecture and migration from Traditional UI.

3. Experience with Pega Cloud or on-premise/private cloud deployments, including AWS or Azure.

4. Knowledge of Pega GenAI, Process Fabric or Pega Customer Decision Hub.

5. Awareness of NCSC security principles and government cloud security standards.

Benefits & Perks

The opportunity offers the chance to:

1. Work on a significant government technology programme.

2. Take ownership of technical architecture and influence key design decisions.

3. Lead and mentor experienced technical teams.

4. Contribute to secure, scalable and modern Pega solutions within the public sector.

Please note: Active SC clearance and CLSA certification (Part 1 and Part 2) are essential requirements for this position.