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I am a senior backend developer with extensive experience in designing and developing scalable, high-performance systems, particularly using Java, Kotlin, and Rust. Over the years, I have played key roles in architecting multiple ecosystem products, leading teams, and delivering seamless integrations across various platforms and technologies. My work spans from gaming and social feeds to blockchain-powered fundraising platforms, always focusing on customer satisfaction and efficient development processes. I am passionate about leveraging cutting-edge technologies such as microservices, event-driven architectures, and blockchain smart contracts to build robust software solutions. My approach combines a deep understanding of technical challenges with strong leadership skills to ensure successful product launches and high-quality user experiences.…I am a senior backend developer with extensive experience in designing and developing scalable, high-performance systems, particularly using Java, Kotlin, and Rust. Over the years, I have played key roles in architecting multiple ecosystem products, leading teams, and delivering seamless integrations across various platforms and technologies. My work spans from gaming and social feeds to blockchain-powered fundraising platforms, always focusing on customer satisfaction and efficient development processes. I am passionate about leveraging cutting-edge technologies such as microservices, event-driven architectures, and blockchain smart contracts to build robust software solutions. My approach combines a deep understanding of technical challenges with strong leadership skills to ensure successful product launches and high-quality user experiences.

Artem Kostritsa

Back-End Developer, Blockchain Developer, Full Stack Developer, +1

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I am a senior backend developer with extensive experience in designing and developing scalable, high-performance systems, particularly using Java, Kotlin, and Rust. Over the years, I have played key roles in architecting multiple ecosystem products, leading teams, and delivering seamless integrations across various platforms and technologies. My work spans from gaming and social feeds to blockchain-powered fundraising platforms, always focusing on customer satisfaction and efficient development processes. I am passionate about leveraging cutting-edge technologies such as microservices, event-driven architectures, and blockchain smart contracts to build robust software solutions. My approach combines a deep understanding of technical challenges with strong leadership skills to ensure successful product launches and high-quality user experiences.…I am a senior backend developer with extensive experience in designing and developing scalable, high-performance systems, particularly using Java, Kotlin, and Rust. Over the years, I have played key roles in architecting multiple ecosystem products, leading teams, and delivering seamless integrations across various platforms and technologies. My work spans from gaming and social feeds to blockchain-powered fundraising platforms, always focusing on customer satisfaction and efficient development processes. I am passionate about leveraging cutting-edge technologies such as microservices, event-driven architectures, and blockchain smart contracts to build robust software solutions. My approach combines a deep understanding of technical challenges with strong leadership skills to ensure successful product launches and high-quality user experiences.

Available to hire

I am a senior backend developer with extensive experience in designing and developing scalable, high-performance systems, particularly using Java, Kotlin, and Rust. Over the years, I have played key roles in architecting multiple ecosystem products, leading teams, and delivering seamless integrations across various platforms and technologies. My work spans from gaming and social feeds to blockchain-powered fundraising platforms, always focusing on customer satisfaction and efficient development processes.

I am passionate about leveraging cutting-edge technologies such as microservices, event-driven architectures, and blockchain smart contracts to build robust software solutions. My approach combines a deep understanding of technical challenges with strong leadership skills to ensure successful product launches and high-quality user experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Senior Backend Developer at The Open Platform

September 1, 2022 - Present

Developed and architected multiple ecosystem products with a focus on Playdeck, a central hub for game discovery, engagement, in-app payments, and community interaction. Addressed key challenges such as scalability and performance by implementing auto-scaling and load balancing to efficiently handle traffic spikes. Ensured security through encryption, secure authentication, and regular audits. Designed a microservices architecture including services for bot, game catalog, user profiles, leaderboards, payments, and push notifications. Optimized data access using Redis for read-heavy operations and leveraging Redis queues for delayed task processing. Integrated Playdeck seamlessly with other ecosystem products, enhancing user profiles, social features, in-game purchases, and cross-platform gaming experiences.

Kotlin Backend Developer / Team Lead at Tribally

August 31, 2022 - August 22, 2025

Played a key role in the development and launch of a startup product enabling seamless integration of in-app social feeds with minimal code. Led development and architectural design of the core functionality. Focused on customer satisfaction and efficient development processes while integrating the SDK with three applications. Spearheaded the launch of Angelboard, a fundraising community built on Tribally, powered by Ethereum blockchain with Solidity smart contracts and Web3j. Responsible for system design and implementation leveraging blockchain technologies to create a decentralized and transparent platform for content creators and supporters.

Java Backend Developer at Qwarry

December 1, 2021 - August 22, 2025

Developed and optimized a Demand-Side Platform requiring a high-performance, scalable, and event-driven architecture for real-time bidding (RTB) and large-scale data processing. Addressed challenges in scalability and performance by designing high-throughput systems using RxJava and Kafka for real-time event processing. Optimized MySQL and Druid for fast analytical queries on large datasets. Implemented Aerospike caching for frequently accessed data, reducing response times. Built modular Spring-based microservices for efficiency and maintainability. Ensured millisecond-level response times for programmatic ad auctions.

Hybrid Full Stack Developer (Java/TypeScript) at Persona.ly

February 1, 2020 - August 22, 2025

Developed a programmatic platform (DSP) for high-load advertising networks with real-time bidding (Open RTB). Developed and optimized a high-load programmatic advertising platform handling millions of RTB transactions per second. Implemented machine learning-driven targeting solutions leveraging first-party data to improve user acquisition, re-engagement, and market research. Contributed to AI-driven audience segmentation and predictive modeling to enhance ROI and ad relevance globally. Focused on performance optimization to reduce query latency and increase system throughput for mobile marketing and market research industries.