Lead Unity Developer (C#) – 3D Adventure Game | B2B Remote

We are looking for a Unity Team Lead Developer (B2B collaboration) with a minimum of 5-7 years of professional experience in Unity and C#, who desires more than just a contract: they want to build a project from scratch and have a real stake in its success.

Important: the collaboration is exclusively B2B. You will invoice through a Romanian entity (LLC or sole proprietorship) to our company in the United States. We do not offer an individual employment contract.

The Ideal Candidate

Has a minimum of 5-7 years of professional experience with Unity and C#.
Has contributed to the launch of at least one 3D game, in which they held an important technical role.
Masters software architecture: design patterns, SOLID principles, and the development of scalable and maintainable code.
Has recent experience with Unity 6 or Unity LTS, URP, and the new Input System.
Has coordinated other developers through code reviews, task distribution, mentoring, and estimations.
Works fluently with Git and modern team workflows (branching, pull requests).
Speaks English fluently, as communication with the team in the United States is conducted in English.
Is available for partial overlap with the EST time zone (a few hours in the evening).
Owns or is willing to establish an LLC or sole proprietorship to invoice services.

Job Description

We are developing a Christian-themed first-person 3D adventure game, built in Unity 6 for PC, with a subsequent release on mobile devices.
We are looking for a hands-on Team Lead who will write code daily, define the technical architecture of the project, and coordinate the development team.

The project is greenfield, meaning you will build the architecture and systems from the ground up, without inheriting legacy code.

Collaboration type: long-term B2B contract, full-time, remote, between your Romanian company (LLC or sole proprietorship) and our company in the United States. Payment is made monthly, based on invoice, in USD.

Responsibilities

Define and maintain the technical architecture of the game (project structure, core systems, and coding conventions).
Write production C# code; the role remains primarily technical, not exclusively management.
Coordinate the development team by allocating tasks, conducting code reviews, mentoring, and providing estimations.
Collaborate with the game design and art teams to transform specifications into playable functionalities.
Identify performance issues and optimize the game for PC, and subsequently for mobile platforms.
Establish the build pipeline, Git versioning strategy, and QA processes.
Report directly to the founders and participate in decisions regarding product planning and development.

Benefits

B2B fee negotiable based on experience.
Participation in the net revenue generated by the game (revenue share) between 1% and 3%, with vesting and performance thresholds, as well as the possibility of growth as the project progresses.
We want the game's success to be your success too.
Long-term contract, with stability and predictability.
Real technical leadership role, with authority over architecture decisions.
Flexible schedule and the possibility to work 100% remote.
Direct collaboration with the founders, without corporate bureaucracy.
Access to modern development tools, including AI solutions (Unity AI, Claude Code).