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
Accurate Spreadsheet Data Entry Category: Copy Typing, Data Analysis, Data Collection, Data Entry, Data Management, Data Processing, Excel, Excel Macros, Google Sheets, Inventory Management Budget: $10 - $30 USD
09-Feb-2026 17:04 GMT
Find 1M+ Instagram Meme Page Category: Content Strategy, Data Entry, Facebook Marketing, Instagram Marketing, Internet Marketing, Market Research, Social Media Management, Social Media Marketing Budget: ₹12500 - ₹37500 INR
09-Feb-2026 17:04 GMT
Tech Blog Content Writer Needed Category: Article Writing, Blog, Blog Writing, Content Writing, Digital Marketing, Ghostwriting, SEO, Technical Writing Budget: ₹400 - ₹750 INR
09-Feb-2026 17:04 GMT
Cinematic Car Delivery Shoot Category: After Effects, Cinematography, Photo Editing, Photography, Photoshop, Product Photography, Video Editing, Visual Arts Budget: ₹600 - ₹1500 INR
Simple Fantasy Miniature Sculpt Category: 3D Art, 3D Design, 3D Modelling, 3D Printing, 3D Rendering, 3D Visualization Budget: €8 - €30 EUR
09-Feb-2026 16:56 GMT
Traditional Wedding Videography Category: Audio Engineering, Cinematography, Editing, Film Production, Final Cut Pro, Post Production, Video Editing, Video Production, Video Services, Videography Budget: £1500 - £3000 GBP
09-Feb-2026 16:56 GMT
Creative Logo Design Project Category: Adobe Creative Cloud, Adobe Illustrator, Photoshop, Creative Design, Digital Design, Graphic Design, Illustration, Logo Design, Vector Design, Visual Design Budget: $10 - $15 USD