Istvan Lajtos
Istvan Lajtos

Head of Product / IoT Product Leader

Open to offers · Member since 27 Jul 2026
Message
Location
London, United Kingdom
Desired salary
Unspecified
Work preference
Hybrid / Full Time
Experience level
Lead

About

Professional summary

I am a telecom and ICT product leader with more than 25 years of experience across mobile networks, IoT connectivity, device lifecycle management, and technology strategy.

I specialize in building and scaling IoT connectivity solutions, including cellular IoT, eUICC/eSIM, private wireless networks, and cloud-based platforms for enterprise deployments.

In my recent roles, I have led product strategy, roadmap execution, and cross-functional delivery for global IoT platforms, working closely with engineering, sales, customer success, and executive leadership.

I enjoy turning complex technical capabilities into customer-centric products that create commercial value, improve operational efficiency, and support long-term platform growth.

My background also includes programme management, agile delivery, stakeholder management, and technical account leadership across major telecom organizations and industry initiatives.

I am passionate about innovation in IoT, 5G, and emerging technologies, and I focus on building scalable solutions that help businesses deploy connected devices securely and reliably worldwide.

Skills

27 capabilities

Tech stack & tools

Working toolkit

Collaboration

Development

Languages & Frameworks

Experience

Career history

Head of Product Velos IoT

I lead product strategy and roadmap execution for a global IoT connectivity platform.

I manage cross-functional teams to deliver analytics, automation, and data capabilities while balancing commercial priorities, customer needs, and delivery capacity.

I also oversee JIRA Service Management and agile delivery practices, and I support go-to-market efforts with product positioning and roadmap narratives.

Head of Products Eseye Ltd

I defined and managed a three-year roadmap for the Infinity IoT Platform, including billing, SIM lifecycle management, and Remote SIM Provisioning.

I owned the product backlog, sprint planning, and user stories in JIRA, and worked closely with development, sales, and customer success teams.

I also collaborated with MNOs and MVNOs across more than 190 countries and introduced Agile SCRUM, JIRA, and GitLab to improve delivery efficiency.

5G Programme Manager AWTG Ltd

I led a £9M UK Government-funded 5G testbed project and worked with industry partners including Huawei, O2, and BT.

I managed the rollout of a private 5G network for smart manufacturing and supported AI-driven predictive maintenance use cases.

I also coordinated cross-functional stakeholders, conducted process mapping, and presented findings to senior leadership.

Delivery Director Bristol Is Open

I led a smart city R&D platform initiative and oversaw a 10-person team across multiple communication technologies.

I delivered EU-funded R&D projects, managed strategic partnerships, and contributed to the launch of the first 5G test bed.

I also helped shape experimentation-as-a-service and smart city innovation strategies.

Director Technology Consultancy

I provided consultancy services focused on early 5G technologies, including multi-access edge computing solutions.

I supported large international blue-chip customers with technology strategy and solution development.

Web Working Group Director, Web and Internet GSM Association, London

I led a GSMA working group providing thought leadership for global mobile network operators.

I developed technology strategy and delivered solutions in areas such as encrypted traffic management, NFV, IoT, cloud services, and MEC.

I also authored whitepapers and created product propositions for emerging technologies including blockchain, WebVR, and web payments.

Senior Product Manager OneAPI, Technology

I guided the evolution of HTML5-based web apps and defined SaaS and PaaS strategies for mobile operators.

I integrated Rich Communication Suite with WebRTC and managed the Smarter Application Guidelines website.

I also supported developer engagement and sponsorship growth.

Technical Account Manager – Devices, Marketing Telefonica (O2) UK, Slough

I managed technical validation activities for device OEMs and led the OpenOS working group within Telefonica Group’s global technical committee.

I worked with OEMs such as HTC and Nokia and helped improve test quality and efficiency.

I also managed the O2 Health mobile telecare platform and completed technical delivery ahead of schedule.

Technology Strategy Manager – Devices, Marketing Telefonica (O2) UK, Slough

I developed and delivered Telefonica Group’s mobile platform technology strategy with a focus on R&D and innovation.

I led strategy for smartphone platform security and pioneered cloud-based mobile platform processing concepts.

I also established compliance processes to improve user experience across major smartphone platform providers.

Senior Technical Product Manager – O2 Branded Devices Telefonica (O2) UK, Slough

I oversaw the device lifecycle for O2 branded devices from development to end of life.

I worked with white-label OEMs on product specification, design, software, UI development, accreditation, and sales support.

I also led cost-saving initiatives, including savings on USB modems.

Technical Account & Product Manager, Terminal Integration and Validation T-Mobile International, Hatfield

I was responsible for device interoperability testing and vendor relationship management.

I worked with major vendors such as LG Electronics and Samsung on device integration, functional testing, conformance, and quality gate testing.

Technical Product Manager, Group Devices Vodafone UK/Group, Newbury

I managed the device accreditation process and trained new staff for lab testing and protocol stack evaluation.

I developed testing scopes and specifications for 3G handsets and created vendor self-certification processes.

I also supported the launch of Vodafone branded flagship devices across global markets.

2.5G / 3G Verification & Package Leader, Senior Engineer Ericsson Ltd, Guildford

I served as a technical test and package leader for packet switching systems.

I managed technical projects, handled daily technical issues, and set up global software verification objectives.

I also supported Vodafone Group projects across Europe.

Education

Learning history

Axelos

Certified SCRUM Master, SCRUM Master Certification

Professional certification in Scrum Mastery.

Axelos

PRINCE2 Foundation and Practitioner Certification, Project Management

Project management certification covering PRINCE2 Foundation and Practitioner levels.

CIM (Chartered Institute of Marketing), UK

Professional Degree, Marketing

Member of the Chartered Institute of Marketing (MCIM).

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