> Markdown version of [/jobs/ext/3602796-senior-pega-developer-certified-senior-system-architect-cssa](https://www.wearedevelopers.com/jobs/ext/3602796-senior-pega-developer-certified-senior-system-architect-cssa). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Pega Developer (Certified Senior System Architect - CSSA) - **Company:** Infinity Quest - **Location:** UK - **Experience:** Expert - **Salary:** £63,088.0 - **Contract:** Permanent contract - **Skills:** Application Configuration Access Protocols, Application Testing, Unit Testing, Scrum Methodology, Release Management, Software Engineering, Systems Architecture, Systems Integration, Workflow Management Systems, Pega, Technical Debt, Enterprise Integration - **Published:** October 7, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5914221183 ## About the Role * 8+ years of IT and software development experience. * 6+ years of hands-on Pega development experience. * Strong expertise in: + Pega Application Configuration + Case Management & Workflow Development + Defect Investigation & Resolution + Unit Testing & Peer Reviews + Guardrail-Compliant Development + User Acceptance Testing Support + Agile & Scrum Delivery + Integration Development * Experience delivering solutions within controlled release and change management environments. * Strong problem-solving, troubleshooting, and stakeholder collaboration skills. * Experience working within UK Public Sector programmes is desirable. * Technical Expertise * Pega Platform Development * Case Lifecycle & Workflow Design * Business Rules Configuration * Pega Integrations & Services * Application Testing & Quality Assurance * Defect Resolution & Production Support * Agile/Scrum Delivery Practices * Release Management & Change Control * Sprint Documentation & Acceptance Evidence Certifications * Pega Certified Senior System Architect (CSSA) Pegasystems * Pega Certified System Architect (CSA) Pegasystems ## Description * Configure and deliver agreed business use cases from the prioritized WP6 backlog. * Develop, configure, and maintain Pega applications using best-practice design principles. * Conduct peer reviews and unit testing to ensure solution quality and compliance. * Resolve defects and support user acceptance testing within established change control processes. * Collaborate with Product Owners, Business Analysts, Architects, and development teams throughout the delivery lifecycle. * Participate in daily stand-ups, sprint planning, retrospectives, and other Scrum ceremonies. * Promote application changes through controlled environments and release processes. * Produce sprint acceptance evidence and contribute to project documentation and knowledge-sharing activities. * Support continuous improvement initiatives and technical debt remediation where required.