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Igor Coseanic

Senior / Lead Unity Developer

6+ Years Commercial Experience

Specialized in Gameplay Systems, Mobile Performance Optimization, Unity Architecture, SDK Integration & Technical Leadership

igor.coseanic@icloud.com•+37362033736•Chisinau, MD-2000 Moldova•linkedin.com/in/igor-coseanic-unity•github.com/igorko8f

Professional Summary

Senior Unity Developer with 6+ years of experience building mobile, Web, and PC games. Specialized in gameplay systems, performance optimization, Unity architecture, and SDK integration, with recent experience leading development teams and driving technical decisions. Proven track record engineering and maintaining live titles with 1M+ downloads, deep Firebase infrastructure, custom telemetry pipelines, pure C# decoupled domains, and continuous LiveOps.

Core Technical Competencies & Skills

Unity & C# Core:

Unity 6, Mobile 2D/3D Lifecycle, C#, URP, GC Elimination, Memory Profiler, Target 60 FPS, Addressables.

Software Architecture:

SOLID, OOP, MVX Patterns, HMVC, ECS, Entitas, ScriptableObjects, Component-Based Systems.

Frameworks & DI:

Zenject / Extenject, Dependency Injection, UniRx / R3, UniTask, DOTween, Async Workflows.

Backend & Analytics:

Firebase (RTDB, Firestore, Auth, Analytics), REST APIs, LookerStudio, Google Cloud, AppsFlyer, Unity IAP, A/B Testing, Offline Caching.

Quality & DevOps:

Git, GitFlow, CI/CD, AltTester Automated Testing, PlayMode Tests, Code Reviews & Technical Mentorship.

AI-Augmented Engineering:

Agent Context Engineering (AGENTS.md), Task Decomposition, Human-in-the-Loop Quality Verification.

Professional Work History

Senior / Lead Unity Developer — Avantaj Prim S.R.L

05/2023 — 06/2026 (Chisinau, Moldova)

Engineered and supported live mobile products on iOS & Android reaching 1M+ downloads (Jolly Match 3, Jolly Battle, Jigsaw Puzzle) with deep Firebase integration, custom analytics pipelines, and team technical coordination.

•Developed and maintained Unity mobile applications and live products for iOS and Android.
•Designed and implemented gameplay systems, responsive UI, and new features with a focus on performance and scalability.
•Integrated and maintained Firebase (RTDB, Firestore, Auth, Analytics), monetization, attribution, and other third-party SDKs.
•Optimized CPU, memory usage, and loading times across a wide range of mobile devices, eliminating GC allocations and targeting 60 FPS.
•Participated in technical architecture, milestone planning, sprint planning, and task estimation.
•Led code reviews, mentored developers, and coordinated technical implementation across multidisciplinary teams of up to 12 specialists (including 4 developers).
•Collaborated closely with designers, backend engineers, analysts, and QA to deliver high-quality live products.

Senior Unity Developer — Dragon's Lake LTD

08/2022 — 04/2023 (Chisinau, Moldova • Remote)

Developed and maintained a cross-platform card game for Web and PC using Unity, implementing core gameplay mechanics, UI features, and performance optimization.

•Developed and maintained a cross-platform card game for Web and PC using Unity.
•Implemented gameplay systems, UI features, and core mechanics for collectible card game systems.
•Optimized project performance and improved application stability across desktop and web environments.
•Contributed to technical architecture and feature planning.
•Collaborated with designers, backend developers, artists, and QA teams throughout the entire production cycle.
•Established decoupled architectural patterns and clear code review practices.

Middle Unity Developer — WAB Studio & FastFoodGames

01/2021 — 06/2022 (Chisinau, Moldova • Remote)

Engineered mobile applications and interactive game prototypes using Unity, focusing on UX, gameplay loops, and monetization SDKs.

•Developed mobile applications and game prototypes using Unity.
•Implemented gameplay and UI systems focused on user experience and player engagement.
•Integrated third-party SDKs for analytics and monetization.
•Collaborated with designers and artists to create polished interactive content and rapid proof-of-concept prototypes.

Unity Game Developer — OurView Games

04/2020 — 01/2021 (Chisinau, Moldova)

Developed mobile applications and gameplay systems, UI logic, and mobile prototypes with analytics and ad network integrations.

•Developed mobile applications and gameplay systems using Unity.
•Created UI logic and gameplay prototypes for mobile projects.
•Integrated analytics and monetization SDKs.
•Collaborated with multidisciplinary teams during iterative development, testing, and store submission.

Live Shipped Products & Key Highlights

Jolly Match 3

100k+ Downloads

iOS & Android • Team of 12 (4 Devs)

Senior/Lead Unity Developer. Gameplay systems, monetization, analytics integration, Firebase, A/B testing, performance optimization, and roadmap planning.

Jolly Battle

1M+ Downloads

iOS & Android • Core Team of 2

Competitive multiplayer battles. Long-term product support, new features, Firebase services, monetization SDKs, A/B testing, and stability improvements.

Jigsaw Puzzle

Live on Stores

iOS & Android • Team of 7 (2 Devs)

Jigsaw puzzle title by Jolly Battle. Gameplay mechanics, analytics, monetization, Firebase services, A/B testing, code reviews, and performance tuning.

Selected Project Case Studies

Jolly Match 3

Android, iOS

Commercial mobile Match-3 game (100k+ downloads) where I served as Team Lead, featuring rich gameplay systems, client-server synchronization, a custom analytics pipeline, Firebase RTDB/Firestore integration, REST API social systems, and automated testing.

Unity • C# • Firebase (RTDB, Firestore, Auth, Analytics) • REST APIs

Component Ability System

PC, Cross-platform

An independent architecture showcase demonstrating a modular ability framework in Unity. Features component-based ability composition, ScriptableObject-driven configuration, instant and over-time status effects, target selection algorithms, and clean dependency management.

Unity • C# • ScriptableObjects • Component Architecture

BlueLight Inc.

PC, WebGL, Cross-platform

A startup tycoon simulator and collectible card game planned for release on the Epic Games Store (project is now closed). As part of the core game unit, I developed the card game logic, UI systems, and integration with the tycoon and meta-game layers across PC and WebGL.

Unity • C# • CCG & Grid Systems • Dependency Injection

AR Language Lab

Android

An interactive mobile educational application using marker-based Augmented Reality to teach foreign language vocabulary. Features 3D object manipulation, task-based learning, and a data-driven architecture separating lesson content from app updates.

Unity 6 (6000.3.16f1) • Vuforia Engine • C# • Marker-based AR

Tetris Sudocu

PC, Cross-platform

A puzzle game combining Tetris and Sudoku block mechanics built for an engineering test assignment. Engineered with Unity 6, Zenject dependency injection, R3 reactive programming, and a custom Unity Inspector editor tool for configuring 5x5 figure matrices.

Unity 6 (6000.3.16f1) • C# • Zenject (Dependency Injection) • R3 (Reactive Programming)

Education

Technical University Of Moldova, Chisinau

Bachelor of Science, Software And Applications Development And Analysis

05/2019 | Chisinau, Moldova

Languages

Russian: Native language

Romanian: B2

English: B2