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# SC Cleared Lead System Architect (Pega)- Public Sector

- **Company:** Square One Resources Limited
- **Location:** UK (Remote available)
- **Experience:** Expert
- **Salary:** £149,500.0 - £162,500.0
- **Contract:** Temporary contract
- **Skills:** Agile Methodology, Amazon Web Services, Audit Trail, Automation of Tests, Microsoft Azure, Cloud Computing, Code Review, Databases, DevOps, High-Level Architecture, OAuth, Performance Tuning, Role-Based Access Control, Security Assertion Markup Language (SAML), Simple Object Access Protocol (SOAP), Single Sign-On, Systems Architecture, Systems Integration, Pega, Private Cloud Environment, SC Clearance, Apache Kafka, Restful APIs
- **Published:** October 27, 2026
- **Apply:** https://www.careerboard.com/gb/en/find-jobs-in-United-Kingdom/-3106A5345A5590E7B7/

## About the Role

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

## Description

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.