Top Tech Jobs & Startup Jobs in Belfast

Provide end-to-end production application support, including incident response, escalation management, monitoring, access and configuration changes, and client communication. Use AI tooling to investigate issues, build automations, and validate outputs. Collaborate with engineering on fixes, mentor teammates, and maintain runbooks and knowledge articles. The role requires strong skills in cloud platforms, APIs, databases, networking, operating systems, scripting, troubleshooting, and customer communication, with participation in an on-call rotation.

Develop and maintain production software for large-scale, real-time advertising systems. Responsibilities include writing tested code, addressing features and bugs, supporting production services, collaborating across teams, and contributing to system architecture and design. The role emphasizes systems programming, scalability, low-latency performance, concurrency, memory management, and reliable enterprise server applications, with opportunities to develop production Rust skills.

Processes global sales orders, captures contract data, reviews quotes, fulfills software subscriptions, and resolves transactional issues. Partners with Sales, Legal, IT, Commissions, Accounting, and Accounts Receivable to remove bottlenecks and ensure accurate bookings. Supports customer inquiries, system and SKU testing, and cross-functional operational improvements that enhance scalability and proposal-to-cash efficiency.

As a Senior Site Reliability Engineer, you'll build resilient platforms, automate processes, mentor teams, and drive changes in a cloud-based environment.

Develop and maintain high-quality Java and AWS software applications. Design, build, test, and troubleshoot scalable, secure, high-performance systems across multiple application layers. Contribute to architecture, technical decisions, estimation, product planning, and requirements creation. Mentor junior engineers and collaborate with technical and non-technical stakeholders. Experience with CI/CD, cloud platforms, data storage, and Java BPMN implementations is valuable.

Build and maintain customer-facing features, internal tools, and platform improvements for a Rails-based self-storage operating system. Responsibilities include full feature ownership, collaborating with Product, writing tests, debugging production issues, improving stability and performance, monitoring applications, participating in code reviews, and contributing to technical discussions. The role requires independent work on defined tasks and collaboration within a small product engineering team.

Represent Butternut Box at events across Belfast and surrounding areas, engaging potential customers, pitching fresh pet food, and closing sales. Responsibilities include setting up and dismantling sales stands, working in busy public environments, and traveling to regional activations. The role offers a daily base rate plus uncapped commission and is fixed-term through year end, with 16 shifts per month.

Build and maintain BrandX software, including dashboard features, billing systems, authentication, and AI Assist capabilities. Own small-to-medium features, write and review code, create tests, support CI/CD and deployments, troubleshoot production issues, participate in team ceremonies, and join the on-call rotation. Collaborate with distributed teams while using AI coding tools such as Claude Code and GitHub Copilot.

Leads an engineering team responsible for delivering and scaling Olo’s restaurant technology platform. Manages engineering projects, technical debt, product roadmaps, system quality, performance, and major technical escalations. The role includes hiring, mentoring, performance management, process improvement, cross-functional collaboration, stakeholder engagement, and ensuring reliable, scalable solutions aligned with business objectives.

Owns the end-to-end administration and delivery of Prior Informed Consent contracts, including compliance records, trackers, evidence logs, audits, follow-up actions and close-out. The role coordinates Compliance, Service Delivery, Commercial, Contracts and Logistics, identifies and escalates risks, provides documentation guidance, and improves processes supporting regulated waste and environmental compliance.

Provides cybersecurity transformation consulting across sectors, helping clients shape cybersecurity strategies, resolve cyber issues, transition to new business models, and align security with business goals. The role involves stakeholder engagement, project and technical program delivery, cybersecurity consulting, proposal development, business development, and team collaboration. It requires broad expertise across cybersecurity people, processes, and technology, plus strong consulting, relationship-building, and sector knowledge.