Pega Lead System Architect

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Role: Pega Lead System Architect

Location: London

Role Type: Permanent

Mode: Hybrid (2 days a week from home)

Careers at TCS: It means more

TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership.

The Role

As a Lead System Architect you will be responsible for leading the design and implementing end-to-end Pega solutions that align with business goals and technical standards. In this role you will collaborate with stakeholders to translate complex business requirements into scalable and maintainable Pega applications. As a Lead System Architect, you will play a critical role in quality assurance, code reviews, and guiding the overall technical vision of Pega projects. For this role you should have experience with enterprise architecture, agile methodologies, and governance. We are looking for someone with deep expertise in Pega Platform capabilities, including case management, decisioning, integrations, and performance tuning and hands-on experience in CDH.

Your responsibilities:

• Hands-on Technical Implementation:
• Lead the hands-on development and build of the Pega CDH application, personally owning the implementation of the most complex components, including core data flows, decision strategies, and integrations.
• Execute the initial application setup, including the creation of the enterprise class structure, ruleset architecture, and access configurations as designed with the LDA.
• Configure and validate core platform components, including the Decision Data Store (DDS), Adaptive Decision Manager (ADM), and Interaction History (IH) services.
• Technical Problem Solving & System Integrity:
• Lead technical troubleshooter, diagnosing and resolving complex issues related to performance, data integrity, and system integration.
• Implement and manage the technical setup of Pega environments, including node configuration, agent/queue processor setup, and JVM tuning.
• Execute the technical build for all data integrations, connecting Pega CDH to upstream data sources (Kafka, Databases, Files) and downstream channels (APIs, Mobile, Web).
• Ensure the application is built to be performant, running regular health checks, analysing Pega logs, and proactively optimizing code and configurations.
• Technical Mentorship & Code Quality:
• Act as the lead engineer for the development team, providing expert guidance, pair-programming support, and conducting rigorous code reviews to ensure quality and adherence to Pega best practices.
• Set high-quality engineering standards and enforce application guardrails.
• Translate the LDA's architectural designs into clear, actionable technical tasks for yourself and other developers.
• Cross-functional Technical Collaboration:
• Work with technical counterparts in other departments (Data Engineering, Infrastructure, Security) to execute the technical details of integrations and deployments.
• Possess a broad technical awareness to understand the "bigger picture" of how Pega fits into the client’s technology ecosystem, ensuring smooth collaboration.

Your Profile

Essential skills/knowledge/experience:

• Certification: Pega Certified Lead System Architect (LSA) is mandatory.
• Hands-on Pega Experience: very strong hands-on Pega development, with good knowledge on supporting Pega CDH / Decisioning projects.
• Deep Technical Expertise in -
• Pega Decisioning component stack: Next-Best-Action Designer, Data Flows, Decision Strategies, Prediction Studio (ADM), and Interaction History.
• Pega integration services (REST, Kafka), data set configuration (DDS, Database), and advanced agent/queue processing.
• Pega performance tuning, including clipboard management, DB trace analysis, and alert log interpretation.
• Technical setup and configuration of Pega Cloud or on-premise environments.
• Business & Results Acumen:
• An understanding of how to build technical frameworks that support business value measurement (e.g., A/B testing, control groups).
• The ability to quantify and articulate the impact of technical decisions on performance and stability.
• Experience in Financial Services or another large, regulated industry is highly advantageous.

Rewards & Benefits

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon.

Diversity, Inclusion and Wellbeing

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.

As a Disability Confident Employer, we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at [email protected] if you would like to opt in.

If you are an applicant who needs any adjustments to the application process or interview, please contact us at [email protected] with the subject line: “Adjustment Request” or call TCS London Office 02031552100 / +44 204 520 2575 to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.