Sebastian Heitmann

I replace technical complexity with individual leverage.

Developer, project manager, consultant. I've been all three. Now I deliver all three at once, with AI as a force multiplier. One person replacing a team at a fraction of the cost and twice the speed.

Send a Message → Direct to my inbox. No funnel. I read every message.

Working with

Pool Position GmbH

Previously at

Jung von MattSynergyGranny & SmithOFFIS

What I do

Software Development

App Development
Fullstack Development
API & Backend Systems
Cloud Infrastructure

AI & Automation

Agentic Workflows
Prompt & Context Engineering
AI-assisted Development
Human-in-the-Loop Systems

Architecture & Compliance

System Architecture
Domain-Driven Design
GDPR & Data Protection
AI Trust Boundaries

Concept, Planning & Management

Technical Leadership
Requirements Shaping
Design Sprints
Rapid Prototyping

When to reach out

Delivery has slowed, and the team sees a different cause in every direction
The architecture got you here, but it will not carry the next stage
A technical decision now will shape cost, speed, or team structure for years
A migration, rebuild, or reorg needs someone who has already done it

Results

Gap Closed 54% project risk identified and addressed

Identified a 54% projected failure risk through an initial assessment, then restructured the project management and changed the execution conditions to create a more viable foundation for the initiatives that followed.

Execution Risk

9+ Contributors

Led technical project management for migrating a legacy SAP BW analytics environment to AWS, coordinating across architecture, data engineering, and delivery to build a scalable reporting foundation.

Cloud Migration

7 countries rolled out

Stabilized the platform and content pipeline ahead of launch, enabling a reliable rollout across seven countries from day one.

Technical Delivery

Stalled → Stable intranet relaunch

Aligned concept, planning, budget approval, and cross-team execution for the relaunch of an internal platform — turning a stalled initiative into a stable delivery.

Product Leadership

+2 points in satisfaction

Introduced a decentralized IT support model to improve internal service quality, contributing to a measurable two-point increase in satisfaction across the organization.

Operational Improvement

Engagement

Advise Hourly

Billed by the hour. Architecture reviews, hiring decisions, vendor evaluations, and second opinions before a high-impact commitment.

Deliver Per Cycle

Fixed price per delivery cycle. A focused engagement around a defined outcome — an MVP, a migration, a rebuild, or a delivery reset.

Partner Monthly Retainer

Ongoing monthly retainer. Senior technical partnership across architecture, delivery, and execution continuity.

Writing

All articles4 →

Leadership & Management Apr 17, 2026

Project Management Isn't Dying — It's Shrinking Into The Actual Work

The apparatus around software delivery — tickets, sprints, standups, boards — is dissolving because the unit of execution has shrunk past the management overhead built around it. What remains is context management: curating what agents assume, qualifying requests before code gets written, and reviewing output after. The PM skills that matter — sense-making, translation, stakeholder alignment — don't vanish; they relocate into the engineer's orbit. This piece maps that relocation from the perspective of someone who has been an engineer, a project manager, and is now shipping as a one-person agency without a single ticket.

Project ManagementAI AgentsAgentic WorkflowsContext ManagementEngineering Leadership

Shipping with AI Apr 15, 2026

Your Knowledge System Isn't Finished Until It Ships

Andrej Karpathy just published how he uses an LLM to manage his personal knowledge base. Most readers will build the wrong thing — a clean wiki that produces nothing. The step nobody's writing about is wiring your second brain into an agent that produces on your behalf, while you stay on the parts a system can't do for you. Output is delegable. Outcome is not. That's the line.

AI WritingKnowledge ManagementAgentsWorkflowCraft

Leadership & Management Apr 14, 2026

Why Your AI-Written Strategy Isn't a Strategy (And Your Team Already Knows)

Most SMEs are too slow with AI. But there is one place the aggressive approach destroys value instead of creating it: when leadership stops using AI as a tool and starts using it as a leader. An LLM is built to produce the most probable answer, not the best one — sycophantically agreeable, context-free, and architecturally incapable of the outlier conviction calls strategy is made of. This piece maps where that line sits, how the damage compounds quietly across a team's trust, and the single question to ask before every important prompt: am I asking for output, or for outcome?

AI StrategySME LeadershipDecision-MakingSycophancyEngineering Leadership

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