Top Tech Jobs & Startup Jobs in Belfast

Design, maintain, and optimize HLR/HSS/UDM subscriber templates and roaming logic. Lead Full MVNO profile deployments, collaborate with roaming partners and system integrators, define HLR/HSS KPIs, and troubleshoot signalling using Wireshark and roaming platforms.

Lead and grow an analytics engineering team to build self-service analytics: own semantic layer, core dbt models, dashboards, and Lightdash adoption. Establish governance, modeling standards, testing, documentation, and enablement while partnering with analysts and Data Engineering to deliver scalable, production-quality data products.

Build and maintain high-volume backend services and APIs using PHP (Laravel/Symfony). Optimize database queries, implement queues and event-driven patterns, write unit and feature tests, apply SOLID/OOP principles, debug across the stack, and collaborate with product and senior engineers. Participate in a paid on-call rotation to ensure global service reliability.

Build and maintain scalable frontend components for a SPA, optimize performance and SEO, write tests, follow SOLID/OOP principles, collaborate with Product/Design/Backend, and use modern build pipelines and tooling.

Build and maintain Airalo's Android app: design and implement new features, troubleshoot issues, write tests and documentation, follow Android best practices and collaborate across the full development lifecycle.

Lead design and operation of multi-region AWS systems for reliability at scale. Define SLOs/SLIs, run incident management and postmortems, build automation, improve observability, run chaos engineering, and refine on-call processes.

Lead global product positioning, go-to-market strategy, and lifecycle marketing for Airalo. Drive launches, cross-functional enablement, customer insights, adoption, and monetization while equipping Growth, CRM, Partnerships, and Support with messaging, training, and launch materials.

Build and lead Airalo's procurement function: create procurement policy and governance, own category strategies for networks, marketing, and IT/SaaS, run strategic sourcing and high-value negotiations, manage supplier contracts and renewals, embed PO/PR and P2P processes into the ERP, and deliver validated savings and controls while partnering across Finance and business functions.

Lead the marketing measurement strategy for Airalo, including Marketing Mix Modeling, incrementality testing, and attribution methodologies. Collaborate across teams to drive data-informed decisions and optimize marketing spend in a global context.

Senior Finance Business Partner responsible for Networks supply-side P&L: owning gross margin, pricing, inventory and capacity planning, vendor negotiations, CapEx and network investment analysis, budgeting, forecasting, executive reporting, and data-driven decision support.