Максим

Maksym Maiokha
Ukraine, Rivne • [open contact info](look above in the "contact info" section)

Backend Developer with 3+ years of experience building scalable backend systems and high-throughput data
pipelines. Specialized in Node.js, TypeScript, and NestJS with strong experience in processing large-scale datasets
and designing high-load services. Worked on platforms processing billions of records and millions of events per
hour, leveraging technologies such as ClickHouse, Elasticsearch, Redis, and cloud infrastructure. Experienced in AI
integrations, data processing pipelines, and distributed systems. Focused on building reliable, high-performance
backends that power data-driven products and analytics platforms.

Skills
• Backend: Node.js, TypeScript, Nest.js, Express, Strapi
• Databases: MongoDB, PostgreSQL, MySQL, MSSQL, Clickhouse
• Messaging & queues: RabbitMQ, BullMQ
• Search and data: Elasticsearch, Algolia, Redis
• Infrastructure: AWS, Firebase, Supabase, CI\CD, Docker
• API & Integrations: GraphQL, REST API, OpenAI API
• Architecture: Microservices, High-Load Systems, Data Pipelines

Experience
JUNE 2025 – MARCH 2026
Backend developer - Kyra.ai
KyraAI is an AI-driven marketing intelligence platform with a database of 1B+ creator profiles and 20M+ social
posts, enabling deep insights into creator performance, content history, and audience growth.
Tech stack: Express, TypeScript, MySQL, Clickhouse, Elasticsearch, Redis, BullMQ, RabbitMQ, OpenAI Api
Responsibilities:
• Move old PHP and Node.js services to Node.js monorepo microservices.
• Design and implement a high-load background job system capable to process over 3M+ records per hour,
collecting and update social media profiles and content data.
• Build an AI-powered service leveraging OpenAI and Whisper for automatic post transcription and content
analysis to extract semantic insights.
• Delivered a scalable, maintainable, and high-performance backend system enabling real-time data
gathering, analysis, and discovery of creators and their content.

Result: Delivered a high-performance, horizontally scalable backend capable of processing millions of data points
hourly. Improved data freshness and reliability, enabling near real-time insights for marketing teams. Reduced data
processing latency and improved system throughput through optimized ClickHouse and Redis integration. Enabled
automated creator discovery and content insights, significantly reducing manual research time for end users.

DECEMBER 2024 – MAY 2025
Fullstack developer - Mentra.gg
A digital commerce platform that enables users to create their own online stores, manage teams, and sell products.
Tech stack: Nest.js, TypeScript, MongoDB, Stripe, Cloudflare, RabbitMQ, Next, Tailwind
Responsibilities:
• Develop a scalable backend application using a microservices architecture.
 • Build secure and flexible user authentication and authorization systems.
• Write comprehensive tests to ensure backend reliability and maintainability.
• Refactor and improv old frontend application Integrated new backend services with an existing frontend
application.
Result: Successfully delivered scalable backend microservices for the digital commerce platform. Implemented a
robust authentication system and a flexible team-based authorization mechanism with detailed permission
control. Integrated Stripe to handle subscriptions, product purchases, and other payment flows.

AUGUST 2024 – DECEMBER 2024
Backend developer - Robotico
Robotico is a German online retailer specializing in parts for garden equipment. My main responsibility was to
automate the process of importing and updating product data into their system.

Tech stack: Node.js, TypeScript, Oclif, MSSQL, Express
Responsibilities:
• Develop and complete the main supplier scraper.
• Refactor, optimize, translate into English and improve existing code.
• Write comprehensive user and developer documentation.
• Contribute to smaller internal projects, including Chrome extensions, data updaters, and shop plugins.
Result: As a result I've Delivered a fully functional CLI scraper, replacing an outdated web scraper with a more
efficient GraphQL API. Refactored and optimized code for improved performance and maintainability. Translated
the entire codebase from German to English for better collaboration. Worked on smaller internal tools:
implemented Excel functions, developed an Express server to fetch supplier data, and contributed to shop plugins
to enhance the user experience. Contributed to various Chrome extensions to improve internal workflows.

MAY 2024 – AUGUST 2024
Backend developer - Peak Strength
A Fitness application that helps people find the perfect workout program based on their experience in sports, age,
weight and other criteria.

Tech stack: JavaScript, TypeScript, Strapi, MySQL, Jest
Responsibilities:
• Develop new, robust backend features. Cover new code with tests.
• Optimize and refactor existing backend code.
• Troubleshoot and debug backend issues.
• Rewrite existing JavaScript code using TypeScript.
Result: As a result, I've developed new, supported features, written tests for them, and optimized and reorganized
the old code base. Since the code was initially written using JavaScript, I rewrote all main functionalities using
TypeScript.

DECEMBER 2023 – MAY 2024
Backend developer - ExpoDisco
ExpoDisco is for people and organizations involved in trade shows, exhibitions, and expositions. It is designed for
event organizers looking to expand their exhibition offerings, exhibitors looking for innovative ways to showcase
their products and services, and attendees interested in learning about new products, networking with industry
professionals, and learning about the latest trends and developments.

Tech stack: Node.js, TypeScript, Nest.js, Strapi, Stripe, AWS
Responsibilities:
 • Develop MVP version of backend application.
• Integrate Strapi as a CMS.
• Cover code with tests.
Result: This server-side application with an admin panel successfully meets the specified requirements, providing
users with a robust platform for managing profiles, companies, speakers, events, and roles. The integration of
various technologies ensures scalability, security, and efficient management of data and resources. The admin
panel empowers administrators to oversee and control all aspects of the application effectively.

JULY 2023 – DECEMBER 2023
Backend developer - Ciel Energy Sync
This is a closed service, an admin for the management of building projects.

Tech stack: Firebase, Nest.js, Algolia, PostgreSQL
Responsibilities:
• Write the project from scratch;
• Code maintenance;
• Test coverage;
• Integration of third-party services.
Result: As the Back-End Developer at Ciel Power, I successfully crafted a comprehensive end-to-end solution for
building project management. Each phase of the process, from the meticulous development of the project to code
maintenance, thorough test coverage, and the seamless integration of third-party services, was executed with
precision. The end result is a cutting-edge system that not only meets but exceeds the expectations of Ciel Power’s
clients, providing a user-friendly and comprehensive.

Languages
• Ukrainian: native
• English: upper-intermediate