Technical lead (onsite engineer)

Here at Three, we've done things differently since day one. We're a big-hearted energetic bunch, striving for a better-connected life. The energy of our people, the pace at which we operate, and the thrill of making bold moves is exhilarating and addictive. Magic happens when we power the connections that millions value, and you can feel it. When these things combine, phenomenal things happen. We encourage our employees to face their weaknesses, to really open themselves up to new tasks and projects in a super-charged and rich learning environment. We want you to become the best version of yourself. Join us as a Technical Lead (Onsite Engineer) We are seeking a highly skilled and proactive Mobile Technical Lead to drive the implementation and optimisation of our mobile initiatives in line with our clients' strategic goals. Our client is a public health and social care service. The Three Ireland Technical lead serves as the primary subject matter expert for our client's configuration, overseeing the management, deployment, and support of mobile devices and associated applications. This role will be based on the client site in Cork, 5 days a week. This role will lead technical relations for a diverse mobile device portfolio including Smartphones, Tablets, Fixed Wireless Access, IOT and Mobile Broadband devices ensuring seamless integration with corporate platforms and applications. What else it involves : Own and drive the mobile technology strategy, ensuring its technically robust while delivering measurable business value for our client. Manage and evolve the device portfolio (Smartphones, FWA, MBB and IOT) shaping and executing the mobile product roadmap with a balance of technical depth and commercial priorities in line with our client. Act as the primary technical escalation point, providing leadership and expertise on complex issues and major incidents. Lead root cause analysis and incident resolution ensuring minimal disruption and continues service improvement Provide Tier 3 Technical support, Guiding dedicated end-user support with advanced troubleshooting and solutions Define and track KPIs that measure both technical performance and business impact, adjusting strategy and execution to optimise outcomes. Oversee Testing, Staging and development of new devices for our client in partnerships with the Three Ireland Device Engineering Team Develop and maintain standard operating procedures, technical documentations and training resources and deliver training to both technical and non-technical stakeholders. Actively contribute to service and operations review meetings, presenting technical insights and commercial recommendations Design and implement policies and procedures that strengthen the mobile environment while supporting our client's business goals. Leverage your technical expertise to improve operational efficiency and service quality, always balancing innovation with cost-effectiveness Provide training, mentorship, and capability development for the framework client team. Support product lifecycle execution, ensuring cross-functional alignment. Provide validation of new Device Software and Hardware to ensure it's within the client's framework. You will be required to travel to Three Ireland offices in Dublin and in Limerick once per month to liaise with colleagues in both locations. Why This Role : You will sit in the sweet spot of deep technical engineering and strategic delivery You will have real ownership, shaping decisions that directly impact our client, business and future growth You will work on cutting edge mobile technology while keeping a sharp eye on commercial value. The Skills we are looking for : Hands on experience with mobile application development, cellular and networks testing OS-Level diagnostics and direct vendor engagement on device engineering issues. Must have : Deep technical expertise in mobile technologies. Including mobile devices, consumer products, operating systems (Android / IOS) Cellular protocols (2 G,3 G,4 G,5 G, SA, NSA) and network interoperability. Health care device experience a plus. Proven technical leadership with the ability to guide teams through complex challenges and deliver measurable business results. Hands on experience in mobile application testing and troubleshooting including debugging and defect resolution across multiple device types and operating systems. Strong background in mobile device management (MDM) platforms and enterprise mobility solutions with a track record of designing, configuring and supporting secure deployment at scale. Extensive experience in device lifecycle management, from testing to staging through to deployment and firmware updates and end of life processes. Advance troubleshooting capabilities in complex mobile and network environments, including root cause analysis hardware, software, connectivity and service level issues. Technical authority during incident management leading cross functional teams through major incident responses and escalation management Strong product and service understanding - with the ability to balance technical and commercial priorities when managing device portfolios and mobile strategies Familiarity with healthcare and or public sector environments with solid understanding of regulatory compliance and security requirements (EG : GDPR, ISO, HSE compliance framework, etc) Vendor and stakeholder management experience Proficiency in cross functional collaboration coordinating with engineering, operations, products, and commercial teams Technical Qualification - Degree in Engineering, Computer Science, or related discipline (or equivalent 6+years relevant technical experience Benefits of working at Three Competitive salary, annual performance bonus & pension contribution 25 days holidays plus 2.5 company days Annual Leave buy or sell (buy or sell up to 5 days AL each year) Healthcare Insurance through our flexible benefits programe Life assurance, phone & laptop, Access to learning & development tools There's a lot more to us than meets the eye. You may think you know us, but we're full of surprises. Intrigued? Join us and Be Phenomenal. Apply now at : #Jobs #Three Ireland #Be Phenomenal Three Ireland is proud to be an equal opportunities employer. If you do not 'tick every box' in the job description above, there are likely other valuable attributes and skills you have that would make you a great fit for the team. If you feel this role is for you, then please apply! We are committed to equal employment and growing a diverse workforce. We embrace those of any race, gender identity, sexual orientation, age, religion, disability, marital status, family status, civil status or membership of the traveller community, and we want our teams to reflect this! If you require interview reasonable adjustments, please let us know when scheduling your interview, or alternatively please email