About

I'm HC, a systems architect in Stockholm. For close to a decade I've built the parts of a company nobody notices when they work: logins, laptops, email, and the access rules that keep auditors happy.

I've run Google Workspace for 9,000 people at Klarna and led tenant consolidations through acquisitions, most recently moving 2,300 Flowbird users into Arrive's Google Workspace without anyone losing a day.

I'm drawn to places where IT is a strategic function, and more and more to customer- and solutions-facing engineering, where having sat on the customer side is the useful part.

Off the clock I write Swift and C++ for an open-source browser, and I live in a terminal with Solarized on.

Summary

Systems Architect who has designed, built and run Google Workspace, identity and endpoint platforms for up to 9,000 users at Klarna, Arrive, Instabee and Bonnier News, and led tenant consolidations through acquisitions. Looking for solutions, customer and partner engineering roles in Stockholm or remote, bringing the customer-side view of migrations, security and adoption. Hands-on with Okta, Entra ID, Jamf and Intune, and ships production code in Swift, C# and C++ (Chromium).

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Now

updated 1 Nov 2026 · Stockholm

Working on

Rebuilding hcbille.se as a terminal.

Public pull requests · 45+ · live from GitHub

• open #745 Stop Device.Shows reading the session under the device lock - pauljoda/Crest
• open #728 Choose where new tabs open - pauljoda/Crest
• open #390 Keep full-screen pages drawing as they enter and leave full screen - pauljoda/Crest
• open #827 Let a tab dragged on iOS drop onto a Space icon to move it - pauljoda/Crest
• merged #663 Spell imported IP address hosts as a page's origin does - pauljoda/Crest
• merged #662 Refuse imported passwords whose bracketed host is not an IPv6 address - pauljoda/Crest
• merged #651 Keep imported passwords on the right site when the address has escapes - pauljoda/Crest
• merged #650 Read back saved passwords for IPv6 addresses - pauljoda/Crest

→ all pull requests on GitHub

Reading

• Summer Eternal Anthology, Volume One · Summer Eternal
• Public Access Afterworld · Jane Schoenbrun

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Experience

Lead Systems Engineer · Arrive (formerly EasyPark) 2024–present

Owner of the Digital Workplace stack (Google Workspace, Slack) for 4,500+ users across 35 countries.

• Consolidated 2,300 Flowbird users into Arrive's Google Workspace tenant with no downtime by leading identity federation, domain and mail cutover (MX, SPF, DKIM, DMARC), and enablement for acquired admins and end users.
• Supported SOC 2 and ISO 27001 compliance by owning access controls, audit evidence and policy enforcement across the IT stack.

TechOps Automation Engineer · Instabee 2023–2024

Productivity tooling and IT operations for 1,500 users at a fast-growth, fully cloud-native logistics scale-up.

• Reduced onboarding from 5 days to 2 hours and closed offboarding access gaps by building automated joiner/mover/leaver flows across Okta, Jamf and 10+ SaaS apps via SCIM.
• Brought SaaS applications under SSO and centralized governance by owning the IdP, MDM and app approval process.

Senior Efficiency Engineer · Klarna 2021–2023

Google Workspace and productivity infrastructure for 9,000 users in a regulated fintech.

• Ran Google Workspace for 9,000 users by owning security policy, Context-Aware Access, DLP and admin automation with GAM.
• Built custom integrations with Apps Script and Google APIs for multiple teams.
• Cut tooling spend 60% through vendor consolidation and negotiation.

IT Experience Manager · Nordward Group 2020–2021

• Built the IT function from zero for a 500-person venture-backed group, covering device management, identity, onboarding and productivity tooling.

Domain Owner (Google Workspace & Slack) / IT Support · Bonnier News 2017–2020

• Administered Google Workspace and Slack for 2,500 users across a distributed editorial organization, owning platform configuration, security policy and end-user enablement.

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Case study: EasyPark → Arrive

Rebrand of every account, live on stage · 4,500+ users · 35 countries

The problem

EasyPark Group was becoming Arrive, and the new name was secret until it was announced on stage. At the moment of that announcement, every person's email address, groups and shared mailboxes had to move from the group's historical brands to arrive.com, in Google Workspace, Slack, Okta and the HR system at once.

Constraints

• Secret until the reveal, so no pilot groups and no warning to users. Everything was rehearsed by simulation instead.
• Three weeks from start to go-live.
• A very small in-house group, because of how sensitive the project was.
• All 4,500+ users in one go, with no downtime.

What I did

• Led the change for Google Workspace and Slack, and kept the overview of how Google, Slack, Okta and the HR system depended on each other.
• Knew who had to be involved, and brought HR in early enough that the HR system could change in step with everything else.
• Kept the Workspace primary domain as it was, since changing it would have touched things outside our control, and renamed every user account, group and shared mailbox to arrive.com instead.
• Scripted the whole change, so it ran the same way in the simulations and on the day, with no manual cleanup afterwards.

Result

All 4,500+ users moved to arrive.com the moment the brand went live on stage. Nobody was logged out or lost a session, and every old address kept receiving mail.

What I'd tell a customer doing the same

Stressful, but very doable. When every system identifies people by email address, the plan is mostly knowing who owns each system and bringing them in early, then rehearsing until the day itself is just running the script.

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Open source

Crest · contributor · 2026 · ★1,000+

Open-source Arc-style browser for macOS and iOS on a patched Chromium engine. 30+ merged pull requests across the Swift app, .NET core and C++ engine, including password import, back/forward history that survives engine switches, page translation, Chromium tab capture without the Screen Recording permission, and Chrome/Arc extension migration at onboarding.

Inner Dialogue · contributor and extension author · 2026 · ★100+

Local-first framework for persistent AI conversations built on Claude Code. Merged a knowledge-graph memory layer upstream, and maintain eight extensions, each with an integration guide for installs that have diverged from the original.

My own tools

UpNote API · author · 2023 · ★9

Gives the UpNote notes app the HTTP API it lacks. A small Node server runs in Termux on an always-on Android box and turns requests into UpNote's x-callback URLs.

Gmail to UpNote · author · 2023

Apps Script that sends Gmail messages with a chosen label to UpNote through that API, set up from a Google Sheets menu.

install-tizenbrew-tizen · author · 2024 · ★5

One Docker command that installs TizenBrew on a Samsung TV in developer mode, without setting up Samsung's SDK.

Slack API tools · author · 2023

Python scripts for Slack admins. Adds people to channels in bulk from a CSV through the admin API, with retries.

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Technical skills

Google Workspace

Administration and security (2-Step Verification, Context-Aware Access, OAuth app access control, DLP, Vault, Alert Center), Google Meet hardware, Gemini for Workspace, Apps Script, GAM

Mail and DNS

MX, SPF, DKIM, DMARC, mail routing and compliance rules, coexistence during migration, secondary domains and aliases

Identity

Okta, Microsoft Entra ID, Google Cloud Identity, JumpCloud, OneLogin, SAML, OIDC, SCIM, joiner/mover/leaver automation

Endpoint

Jamf, Microsoft Intune, Google endpoint management, Apple Business Manager, zero-touch deployment

Cloud and infrastructure

GCP, AWS, Docker, Terraform, Proxmox, GitOps, VLAN segmentation, internal PKI

Development and AI

Python, JavaScript, Swift, C#/.NET, C++ (Chromium), REST APIs, webhooks, Gemini and Vertex AI, Anthropic and OpenAI APIs, Claude Code

Delivery

Migration planning, change management, admin and end-user enablement, SOC 2 and ISO 27001 evidence, vendor negotiation

Languages

Swedish and English (native), Danish (professional), French (basic)

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Blog

1 post · rss

• What I'm reading (Nov 2026) · 4 Nov 2026
  Just an overview of what I'm currently reading in November 2026

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