Clarity Resourcing (UK) LLP

LEAD TECHNICAL ARCHITECT - GLOBAL SAAS/AI PLATFORM Permanent - Excellent Salary + Benefits Remote - UK-based Clarity is working with a high-growth SaaS business seeking a Lead Technical Architect to take ownership of the architecture of a global, multi-tenant platform, combining cloud-native SaaS, Real Time communications, CRM integration ( Salesforce ), and emerging AI capabilities. This is a senior, high-impact role where you will act as the technical authority across engineering, shaping long-term platform evolution, raising engineering standards, and driving how AI is Embedded into production systems. This is not a pure DevOps or hands-on coding role - it is a leadership-first architecture role with real ownership. You MUST have: Proven experience designing multi-tenant SaaS platforms at scale Strong AWS architecture experience (multi-region, production systems) Experience working on complex distributed systems (ideally Real Time/telecoms) If not, your application will not be progressed. TECH STACK & ARCHITECTURE ENVIRONMENT Cloud & Infrastructure AWS (core platform) Multi-region architecture; Scalable, highly available infrastructure Platform Architecture Multi-tenant SaaS platform (global scale) Distributed systems/service-based architecture Backend services interacting across: Application layer; Data systems; Cloud infrastructure Data & AI Layer AI-enabled platform (growing capability); AI/ML integration patterns Integration Layer Salesforce (core CRM integration); API-driven integrations across platform services External system interoperability Real Time Systems Telecoms/Real Time communications infrastructure requiring: Low latency; High concurrency/reliability Engineering & DevOps Practices CI/CD pipelines (DevOps-led, collaborative environment) Monitoring, logging, incident response Strong focus on: System design clarity; Documentation; Architectural governance KEY SKILLS SaaS architecture (multi-tenant, distributed systems) Deep AWS architecture experience (production, multi-region) System design across Back End services, data, and integrations Real Time systems/telecoms architecture (highly desirable) Salesforce/CRM integration at architectural level AI/ML architecture (integration, pipelines, platform design) Observability, monitoring, resilience engineering Architectural governance and decision frameworks Strong documentation and system design communication EXPERIENCE REQUIRED 8+ years software engineering (Back End/platform focus) Proven experience architecting large-scale SaaS platforms Strong AWS experience in production environments Experience leading architecture across multiple teams Track record of: Improving platform scalability and resilience; Reducing technical debt; Establishing architectural clarity and governance Experience with AI-enabled platforms or products Experience with Real Time communications/telecoms systems Experience in product-led SaaS environments ROLE RESPONSIBILITIES Own and drive the architectural direction of a global SaaS platform Define service interactions across cloud, Back End, data, CRM, and Real Time systems Lead architecture reviews and guide engineering decisions Act as escalation point for complex cross-platform challenges Establish architecture governance, documentation, and standards Improve resilience, observability, and operational maturity Lead evolution of AI capabilities across the platform Mentor engineers and elevate technical capability across teams PERSONAL ATTRIBUTES Proactive, ownership-driven mindset Strong technical judgement and decision-making ability Excellent communicator (technical and non-technical) Collaborative across engineering, product, and leadership Curious and forward-thinking (especially around AI) Pragmatic - balances long-term architecture with delivery WHY APPLY? Own architecture of a global SaaS platform Work across cloud, Real Time systems, and AI Shape AI strategy at platform level High visibility, high-impact leadership role Send CV URGENTLY if interested. Rest assured that your application will be treated in the strictest confidence and will not be sent to any third party without your explicit consent. Due to the high level of applications, we are only able to respond to candidates whose experience closely matches the requirements. Clarity is a specialist recruitment business. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010.