I’m building a persistent, browser based strategy MMO. The UI is largely in place, I need an experienced backend engineer to implement the core game engine and logic, strictly following a written specification.
This is a logic heavy role, not a UI or design role.
What you’ll be responsible for You will implement the backend systems that power the game, including: - Colony state and ownership - Resource production, storage caps, and protection - Build / research / training / shipyard queues (time-based, server-authoritative) - Fleet travel, ETA calculation, and recall windows - Deterministic combat resolution (no RNG) - Colonisation, conquest, and hard anti-griefing rules - Technology effects on units, fleets, and travel - APIs consumed by an existing frontend UI
The game is fully deterministic: Given the same inputs, outcomes must always be identical. - Non negotiable constraints
Please do not apply if any of these are a problem: - No randomness in combat, travel, or production - No “simplifying” mechanics - No redesigning rules or systems - No adding features that are not in the spec
This role is implementation, not interpretation. What I’ll provide - A detailed game design document defining all mechanics - Clear formulas for combat, travel, sensors, queues, and tech - An existing frontend UI to integrate against - Fast feedback and decisions (no stakeholder mess)
Tech stack - I’m flexible on stack, but you should be comfortable with: - REST or equivalent API design - Relational data modelling - Time based systems (queues, timers, delayed resolution) - Writing automated tests for deterministic logic
Please state: - Your preferred backend stack - How you would test deterministic systems - Deliverables (initial milestone)
As a first milestone, I expect: Backend logic + API for: - Colony command screen (timers, resources, queues) - Fleet launch, ETA calculation, recall logic - Active missions list - Basic automated tests validating core formulas - Budget & engagement
Open to hourly or milestone based pricing - Looking for quality over speed - Long term work possible if this goes well
When applying, briefly describe: - A system you’ve built where correctness mattered more than UX - How you avoid logic drift over time
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