Technical Architect

dunnhumby is the global leader in Customer Data Science. Tesco Media is the ultimate media partner to brands. The role is to help shape the future of the SaaS platform, which powers retail media solutions for global retailers and CPGs, enabling end-to-end advertisement campaigns across e-commerce sites, in-store channels, and social media platforms. The role is pivotal in defining architectural guardrails, frameworks, and patterns that enable multiple squads to deliver scalable, reliable, and secure solutions, combining hands-on technical depth with the ability to influence and align engineering managers, lead engineers, and product leaders.

Responsibilities

Architectural Leadership: Define and evolve application architecture in line with business and product strategy for a global retail media SaaS platform; Set Guardrails: Establish repeatable patterns for microservices, APIs, identity/auth, observability, and data flows; NFR Ownership: Ensure non-functional requirements (scalability, reliability, resiliency, observability, security, maintainability) are embedded into design decisions; Cross-Squad Influence: Collaborate with multiple squads (frontend, backend, BFF, platform services) to align on architectural choices; Tech Evaluations: Lead structured assessments of new tools and frameworks (e.g., OPA, SpiceDB, caching, API gateways) and guide adoption; Decision Frameworks: Move teams away from ad-hoc debates by creating clear frameworks for architectural decision-making; Mentorship: Partner with engineering managers and lead engineers to strengthen design-level thinking and technical maturity

Requirements

Strong hands-on expertise across modern application architecture; .NET Core, C#, REST APIs, microservices; Event-driven architectures (Pub/Sub, Kafka, or similar); Databases (Postgres, SQL Server, caching strategies with Redis or Couchbase); Identity & authorization frameworks (Auth0, OPA, SpiceDB, OpenFGA); Observability platforms (New Relic, Prometheus, Grafana); Cloud-native experience (GCP preferred; AWS/Azure acceptable); An understanding of AI-enabled application patterns and workflow orchestration frameworks; Awareness of emerging AI and agentic workflow technologies and their application across retail media, advertising, analytics, and SaaS platforms, with the ability to assess their architectural implications and business value; Strong track record of embedding NFRs into platform and product design; Excellent communicators who can simplify trade-offs for both engineers and business stakeholders; Experience influencing without authority and driving closure across multiple teams

Nice to have

GCP preferred for cloud-native experience; AWS/Azure acceptable

Benefits

Comprehensive medical insurance of INR 500,000 covering employees and eligible dependents, with dental and vision benefits included; Group Term Life Insurance and Group Personal Accident cover, with coverage levels linked to employee grade; Retirement benefits including Provident Fund, Gratuity, and voluntary National Pension Scheme (NPS); Employee Assistance Programme, Indian Health Organisation (IHO) membership, and wellbeing resources through the Wellness Hub; Internet allowance, office commute support, work-from-home kit, subsidised meals, and Early Friday each month; 25 days annual leave plus 10 public holidays, birthday leave, maternity, paternity and adoption leave provisions