Lars Barkman
writings/consulting/ventures/resume/

Independent consultant · Solopreneur

Hi, I'm Lars Barkman.

I bring clarity to complex digital solutions and the organizations behind them — and help both work in practice.

As a solution architect, enterprise architect, and engineering manager, I connect solution design, team capabilities, and how the organization operates. Sometimes that means changing the design; sometimes it means helping the team learn, adapt, or grow.

Twenty years across insurance and pensions, shipping, manufacturing, energy, and enterprise software.

Outside client work, I’m building i26g, a self-hosted platform for independent systematic trading.

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Writings

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Notes on organizations, technology, and the full lifecycle of digital solutions — from tactical detail to strategic perspective.

  • Nov 12, 2026i26gsolution-designsolopreneurship
    Mapping i26g's Domains to Its Repositories
    How i26g's domains map to its repositories: separate repositories for the main site and forge configuration, and a monorepo for the platform, learning material, and documentation.
  • Nov 11, 2026i26gsolution-designsolopreneurship
    The Interface Between i26g and Your Infrastructure
    How the i26g Control Plane creates VMs, networks, storage, and DNS inside its boundary: a small, published interface with an adapter per provider, built from OpenTofu modules — rather than a facade service standing between the platform and your infrastructure.
  • Nov 11, 2026i26gsolution-designsolopreneurship
    One Pattern for Every Integration
    Why every external dependency of i26g — infrastructure, brokers, and data sources — goes through the same adapter pattern: a published interface, conformance tests, versioned sets, and versions you pin — with stricter rules where failure costs more.

Consulting

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Solution architecture, enterprise architecture, and engineering management: stepping into the seat, making the decisions, and staying hands-on until the work holds without me.

  • Solution Architect
    Clear technical direction. Practical architecture. Hands-on support through delivery.
  • Enterprise Architect
    Clear ownership. Clear decision authority. An operating model that supports delivery.
  • Engineering Manager
    Steady leadership for your engineers. A team structure that fits the work. Delivery that improves.

Ventures

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Where I build: i26g, independent systematic trading, worked as knowledge, tooling, and services — i26g Learning, the i26g Platform, and i26g Custom Development.

  • i26g Learning
    Helping independent systematic traders understand the choices involved in building and running a trading operation — the alternatives, what each requires, and how to evaluate the trade-offs. Research methods, engineering, and operational decisions, never specific strategies or trade recommendations.
  • i26g Platform
    A self-hosted platform for independent systematic trading: the application that covers the trading chain, the control plane that runs it, and the adapters that connect it to your broker, data sources, and infrastructure. In development, not yet public.
  • i26g Custom Development
    Extending an i26g deployment when the standard tooling does not cover a specific requirement — hands-on work on the i26g Application, the i26g Control Plane, or their adapters. Offered to early deployments while the tooling is in development.
© 2026 • Lars Barkman