Senior Engine Engineer / Co-founder LoreWeaver (AI & Video Games)

Location: Hybrid (Netherlands preferred)

Type: Co-Founder / Equity + Compensation

Commitment: Full-time

Equity: ~10% (negotiable)

Salary: €5,000 – €8,000 per month (gross) after follow-up funding (expected Q1 2026). We're bootstrapping with equity focus for the first 3-6 months, with a negotiable initial stipend to cover essentials. This is a high-upside opportunity for those excited to build from the ground up.

• https://www.loreweaver.ink/

About LoreWeaver

Loreweaver builds the next-gen narrative backend for all digital storytelling. A dual-product suite that merges AI authoring with real-time storytelling.

• Designer: an AI-powered authoring workstation that transforms a studio’s lore and scripts into playable dialogue, branching quests, and interactive story arcs.
• Runtime: a lightweight Unreal and Unity plug-in that generates adaptive, context-aware dialogue directly on the player’s device. No cloud, no latency, no token costs.

Our vision is to make adaptive storytelling a native part of every game engine.LoreWeaver has secured initial seed funding, runs paid pilots with 2 indie studios, and is preparing for a €2M+ funding round. Current team: 5 members, including CEO and CTO.

The Role

We’re seeking a Senior Programmer to join as a founding technical partner. You’ll lead development of the Unreal Engine 5 plug-in and bridge our language-model runtime with live gameplay systems. Working closely with the CEO and CTO, you’ll turn cutting-edge LLM research into production-ready game-engine tools. This role is for a builder who thrives on both engineering precision and creative systems thinking, enjoys tinkering, and wants to help define how narrative AI becomes part of mainstream game development.

Responsibilities

• Lead implementation of the LoreWeaver plug-in for Unreal Engine 5.
• Design and optimise C++ modules connecting UE5 gameplay systems (e.g., Behavior Trees, Niagara, Data Assets) to local LLM inference back-ends.
• Collaborate with ML engineers to refine on-device inference, caching, and fine-tuning pipelines.
• Ensure seamless data exchange between Designer and Runtime (XML / JSON / UE assets).

Required Skills

• Expert knowledge of Unreal Engine 5: C++, Blueprints, and plug-in architecture.
• Experience integrating or building with LLMs, both through APIs and local inference frameworks.
• Hands-on experience using coding agents to automate or accelerate development.
• Strong gameplay-system understanding. Able to reason about loops, logic, and data flow.
• Deep experience with performance optimisation, memory management, and cross-platform builds.
• Ability to work independently and ship stable, maintainable code under startup conditions.

Create & Gameplay Background

• Experience with TTRPGs (e.g., D&D, Pathfinder) and board games. Understands systems, pacing, and player agency.
• Bonus if you’ve created fan-made mods, expansions, or edits for video or board games.
• Avid reader of fiction and lover of narrative craft.
• Must have played and analysed open-world, RPG, simulation, and other narrative-driven games.
• Enjoys tinkering with systems to optimise outcomes, both in code and in gameplay.

Bonus Skills

• Familiarity with other engines (Unity, Godot, etc.) or multi-engine integration.
• Experience implementing narrative systems or tools (Articy, Arcweave, Yarn Spinner, Ink, etc.).
• Basic understanding of math and statistics (vectors, matrices, probability, interpolation).
• Familiarity with Python for ML or tooling integration.
• Experience with quantisation, fine-tuning, or RAG pipelines for small-to-mid LLMs.
• Interest in procedural storytelling, agent systems, or simulation design.

Why Join

• Become a founding partner with meaningful equity (~10%) in a fast-growing AI company.
• Shape the technical vision for a product already validated by paying pilots and investor traction.
• Build on the frontier where AI, storytelling, and game development converge.
• Collaborate with an ambitious, tight-knit team redefining how games tell stories.
• Research and prototype cutting-edge technologies in AI, game engines, and narrative systems, contributing to joint experiments and being named in research papers or publications as part of the Loreweaver R&D team.

Additional Benefits: Flexible hours, remote work tools, learning stipend for conferences/courses and 25 days of paid leave per year. Health insurance and relocation support available post-funding.

We encourage applications from all backgrounds, especially underrepresented groups in tech and gaming. You DO NOT need to meet every requirement!

Send your resume, portfolio/GitHub, and a brief note on why you're excited about narrative AI to [email protected]. We'll respond within 1 week. Ideal start: Immediate/ASAP. No agencies, please.