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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Lead Architect, Vice President - **Company:** Citigroup Inc. - **Location:** Belfast, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, Business Analytics Applications, Microsoft Azure, Cloud Computing, Information Engineering, Data Transformation, Hazelcast, MongoDB, OAuth, OpenShift, Oracle (Applications), Systems Development Life Cycle, Redis, Software Tools, Prometheus, Distributed Caching, Azure DevOps Pipelines, Zero Trust Network Access, JSON Web Token, Software Engineering, Enterprise Software Applications, GitHub Copilot, ReactJS, Large Language Models, Snowflake, Grafana, Apache Spark, Spring-boot, Software Security, Generative AI, Git, Event Driven Architecture, Containerization, Data Lakes, AngularJS, Data Analytics, Apache Kafka, Restful APIs, Splunk, Dynatrace, Docker, Jenkins, Databricks, Microservices - **Published:** September 29, 2026 - **Apply:** https://citi.wd5.myworkdayjobs.com/2/job/Belfast--United-Kingdom/Apps-Dev-Tech-Lead-Analyst---C13---BELFAST_26982627/apply ## About the Role * Software engineering experience with strong expertise in enterprise application architecture. * Proven experience leading large-scale technology initiatives and distributed engineering teams. Technical Expertise * Java 17+, Spring Boot, Microservices * Angular and/or React * REST APIs and Event-Driven Architecture * Kafka, Solace, Redis, Hazelcast * Oracle, MongoDB, Snowflake * Databricks, Spark, Data Engineering concepts * Azure and/or AWS Cloud Platforms * Docker, Kubernetes, OpenShift * Git, Jenkins, Azure DevOps CI/CD AI & Modern Engineering * AI-assisted software development tools (GitHub Copilot, AI coding platforms) * Experience building AI-enabled applications using: LLMsRAG ArchitecturesAI AgentsVector DatabasesPrompt Engineering * Data-driven application development using Snowflake and Databricks., * Banking / Financial Services experience. * Experience with Data Lake, Lakehouse, and Analytics platforms. * Knowledge of OAuth2, JWT, Zero Trust, and API Security standards. * Experience with observability platforms such as Grafana, Dynatrace, Splunk, Prometheus, or OpenTelemetry. Leadership Expectations * Provide technical leadership across multiple teams and strategic initiatives. * Drive architecture decisions and engineering excellence. * Influence senior stakeholders and technology leadership. * Foster innovation through AI, cloud, and data modernization initiatives. * Build high-performing global engineering teams through coaching and mentorship., * Strong Full Stack Architecture experience. * Cloud and Platform Engineering expertise. * Snowflake and Databricks leadership. * AI/GenAI solution delivery experience. * Strategic thinking with hands-on execution capability. * Strong ownership, communication, and stakeholder management skills. ## Description We are seeking a hands-on Full Stack Lead Architect to lead the design and delivery of enterprise-scale digital platforms across cloud, data, and AI ecosystems. The role combines deep technical expertise in Java, Microservices, Angular/React, Snowflake, Databricks, Cloud Technologies, and AI-enabled solutions with strong leadership, architecture, and stakeholder management capabilities. The successful candidate will drive modernization initiatives, establish engineering standards, mentor development teams, and partner with business and technology leaders to deliver scalable, secure, and data-driven solutions., * Lead architecture, design, and delivery of enterprise applications using Java, Spring Boot, Microservices, Angular/React, and Cloud-native technologies. * Define technology strategy and roadmap for application modernization, AI adoption, and platform engineering. * Design and implement scalable data solutions leveraging Snowflake, Databricks, and modern data lakehouse architectures. * Drive integration of AI/GenAI capabilities, including LLMs, RAG frameworks, AI Agents, and intelligent automation solutions. * Architect event-driven systems using Kafka, Solace, and distributed caching technologies. * Establish engineering standards, SDLC best practices, observability, resiliency, and security controls. * Collaborate with Architecture, Product, Data Engineering, Infrastructure, Security, and Business teams globally. * Lead technical reviews, solution governance, and critical production issue management. * Mentor engineers and provide technical leadership across multiple teams. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Coffee with Developers](https://www.wearedevelopers.com/videos/341-coffee-with-developers) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers) - [Graph and AI Trends 2026: Why Is AI Running but Not Yet Delivering?](https://www.wearedevelopers.com/magazine/680-graph-and-ai-trends-2026-why-is-ai-running-but-not-yet-delivering)