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Founder & Product / Technology Lead with over 15 years’ experience building and scaling digital products. Previously led engineering and product teams in start-ups and tech unicorns, delivering large-scale, secure, user-centred systems. Co-founder Tapplapp — a new venture combining behavioural design and simple technology to make it easy for people to help reconnect lost things, reducing stress and waste while keeping items in use longer.…Founder & Product / Technology Lead with over 15 years’ experience building and scaling digital products. Previously led engineering and product teams in start-ups and tech unicorns, delivering large-scale, secure, user-centred systems. Co-founder Tapplapp — a new venture combining behavioural design and simple technology to make it easy for people to help reconnect lost things, reducing stress and waste while keeping items in use longer.

James Mathieson

Full Stack Developer, Architect, Product Designer, +4

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Founder & Product / Technology Lead with over 15 years’ experience building and scaling digital products. Previously led engineering and product teams in start-ups and tech unicorns, delivering large-scale, secure, user-centred systems. Co-founder Tapplapp — a new venture combining behavioural design and simple technology to make it easy for people to help reconnect lost things, reducing stress and waste while keeping items in use longer.…Founder & Product / Technology Lead with over 15 years’ experience building and scaling digital products. Previously led engineering and product teams in start-ups and tech unicorns, delivering large-scale, secure, user-centred systems. Co-founder Tapplapp — a new venture combining behavioural design and simple technology to make it easy for people to help reconnect lost things, reducing stress and waste while keeping items in use longer.

Available to hire

Founder & Product / Technology Lead with over 15 years’ experience building and scaling digital products. Previously led engineering and product teams in start-ups and tech unicorns, delivering large-scale, secure, user-centred systems.

Co-founder Tapplapp — a new venture combining behavioural design and simple technology to make it easy for people to help reconnect lost things, reducing stress and waste while keeping items in use longer.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Swedish

Intermediate

Work Experience

Senior Engineering Manager at Schibsted Products & Technology

April 1, 2021 - November 1, 2023

Senior engineering manager for customer-facing digital identity and authentication products; reorganized and scaled the digital identity domain into six internationally distributed cross-functional teams; developed strategies and best practices to enhance platform security, reliability, and scalability; strengthened culture of experimentation, knowledge sharing, and cross-brand collaboration; mentored engineers and led internal leadership development program.

Engineering Manager at Schibsted Products & Technology

November 1, 2019 - April 1, 2021

Led a distributed cross-functional team responsible for platform migration and feature development across multiple Schibsted brands; coached engineers through regular 1:1s, feedback sessions, and growth planning; recruited and onboarded engineers; expanded internal learning platform and supported professional development; promoted knowledge sharing and cross-team collaboration.

Engineering Manager at Klarna

November 1, 2017 - September 1, 2018

Led and scaled two high-performing engineering teams in a fast-paced, delivery-focused environment; influenced software design discussions across teams and product domains; collaborated with Product Management to align technical priorities with business goals; championed Agile and DevOps practices to improve delivery speed, reliability, and scalability; strengthened internal tech talk culture across Klarna’s Stockholm hub.

Team Lead at Klarna

October 1, 2014 - November 1, 2017

Mentored and coached software developers through regular 1:1s focusing on skills development, goal-setting, and performance growth; recruited and built two new high-performing development teams; supported Agile delivery practices and drove process improvements for faster, higher-quality releases; improved technical knowledge sharing through internal events and cross-team collaboration initiatives; strengthened Klarna’s internal tech talks culture across the Stockholm engineering hub.

People Lead & Software Engineer at Working Group Two

September 1, 2018 - November 1, 2019

Early-stage cloud-native startup helping telecom providers accelerate innovation and reduce time to market. Led efforts to strengthen engineering culture, psychological safety, and team retention. Worked hands-on delivering cloud-native voice services using Java and JavaScript. Established a transparent, candidate-driven recruitment process to improve hiring outcomes. Supported Agile delivery practices and cross-team collaboration.

Co-founder | Product & Platform at Tapplapp

June 1, 2025 - Present