Pierre Hedkvist

Multipay team

• Contributed to backend services in Java/Spring Boot, expanding responsibilities beyond frontend development.
• Designed the frontend architecture for the KYC integration, including the API structure and end-to-end testing.
• Authored RFCs for cVRP features, including desktop to mobile handoff and change provider.
• Led the migration of the integration test suite from Cypress to Playwright, improving maintainability and aligning with the team's long-term testing strategy.

Payments Experience Team

• Worked on the frontend SDK for an open banking platform, embedded in customer apps with 10M+ monthly sessions.
• Collaborated with product, design, and data to deliver user-facing features.
• Led A/B experiments improving UX and reducing end-to-end payment time for returning users.
• Owned frontend delivery of Variable Recurring Payments; authored RFCs, coordinated with backend teams, and aligned with stakeholders.
• Initiated weekly mob sessions; mentored new hires via pair programming and code reviews to maintain high code quality.

Client work: Scandinavian Airlines (SAS), Bromma

• SAS (May 2022 – Jan 2023): Built the frontend and backend of Eurobonus Hotels, a service for booking hotels with loyalty points via partners such as Amadeus and Expedia.
• Set up an event-driven caching solution for hotel availability using Azure Service Bus, Function Apps, and Redis.
• Built static content pages rendering content from Contentful, including the frontend architecture, working closely with a Content Specialist.
• Bromma (Sep 2020 – Apr 2022): Developed an IoT monitoring system for port spreaders, scaling the service from 1 to roughly 20 ports globally.
• Built a Node.js notification service alerting users when spreader health declined.
• Developed a partner API for port owners to integrate their own systems with Bromma's service.
• Migrated state management from Redux to React Query.

Greater Stockholm Metropolitan Area

• Built a dashboard application for Micropower Group to monitor fleets of lithium-ion batteries and chargers, adding features, tests, and fixing bugs and performance issues across the stack.
• Built a dashboard application for Dasa Control Systems to monitor the performance of forestry machinery.
• Held a week-long React workshop for trainees at the company.

Linköping, Sweden

• Researched and implemented a collaborative graph editing tool, where multiple users can create a graph of nodes and edges in real time — similar to Google Docs, but for graphs instead of text.
• Researched Operational Transformation and Conflict-Free Replicated Data Types (CRDTs) as consistency approaches.
• Implemented a proof-of-concept application using React, WebSockets, and TypeScript on the frontend and Kotlin on the backend.

Master of Science (MSc), Computer Science & Engineering

Collaborative Editing of Graphical Network using Eventual Consistency

Master's thesis, Linköping University, March 2019 — comparing Operational Transformation, CRDT, and locking approaches for collaborative editing applications.