Top Tech Jobs & Startup Jobs in Belfast

Lead the design, reliability, scalability, and evolution of AWS platform infrastructure. Assess existing platforms, prioritize improvements, translate requirements into auditable delivery work, and establish foundations for future platform expansion. Responsibilities include federated identity, complex integrations, incident management, on-call frameworks, post-incident reviews, regulated-environment controls, stakeholder engagement, delivery planning, and leading and mentoring platform engineering teams.

Lead high-impact technical decisions across architecture, backend, cloud, data, web, and mobile systems. Set engineering standards, review code and AI-generated work, design reliable AI components with evaluation and fallback strategies, and guide teams toward pragmatic outcomes. Act as a trusted client-facing technical SME, communicate with senior stakeholders, mentor engineers, make commercially sound decisions, and improve delivery quality across consultancy engagements.

Principal Engineer in a forward-deployed role, partnering directly with teams to identify opportunities, build production-ready solutions, demonstrate emerging capabilities, and transfer knowledge. The role requires broad engineering expertise, architectural judgment, hands-on development, consulting skills, and practical use of AI with appropriate guardrails and quality controls. Work is hybrid for UK-based employees, with approximately one day per week in Edinburgh or London and occasional client-site travel.

Build and maintain high-quality iOS applications using Swift, SwiftUI, Kotlin, and Kotlin Multiplatform. Develop shared business logic, integrate KMP modules, write tested and maintainable code, and champion clean architecture and engineering best practices. Collaborate with designers, product owners, testers, clients, and agile teams while contributing to reusable libraries, code reviews, and modern mobile development practices.

Build and maintain scalable backend systems using Java, Node.js, Spring, AWS, microservices, and REST APIs. Lead architecture and technical design, promote secure and reliable engineering practices, drive automated testing and CI/CD, mentor engineers, collaborate with clients and cross-functional teams, and evaluate AI and emerging technologies to improve software delivery.

Lead technical direction for an AI platform connecting workloads to multiple LLM providers. Build API gateway and routing infrastructure, agent orchestration, capability lifecycle tooling, access controls, API key management, caching, cost and latency optimization, adoption analytics, and trust, safety, and governance controls. Define API standards and promotion workflows while supporting auditable, scalable AI services across client engagements.

Senior Software Engineer responsible for designing scalable Java and Spring backend systems, developing secure REST APIs, and contributing to Vue/TypeScript applications. The role includes architectural leadership, technical decision-making, automated testing, CI/CD, cloud development, mentoring engineers, client collaboration, and delivery across multiple initiatives. The engineer will also evaluate emerging technologies, promote automation, and help adopt responsible AI practices to improve engineering effectiveness.

Senior AWS consulting leader advising enterprise clients on cloud, data and AI strategy. Lead discovery workshops, shape large-scale transformation programmes, design cloud-native roadmaps, support pre-sales, mentor architects, represent the firm externally, and ensure strategic intent translates into delivery.

Design and maintain scalable Java backend systems, REST APIs, microservices, and distributed architectures. Lead technical and architectural decisions, promote testing and automation, mentor engineers, collaborate with clients and cross-functional teams, and evaluate emerging technologies including AI to improve engineering delivery.

The Senior Software Engineer will design, develop, and maintain applications using .NET and AWS, lead modernization efforts, adopt AI practices, and collaborate on technical solutions while ensuring engineering quality.