Hire MERN Developers (Mongo, Express, React, Node)

• Software engineer with 20+ years of experience specializing in Node.js (TypeScript) and Python, architecting microservices and event-driven systems using Kafka/Redpanda, ClickHouse, and PostgreSQL.
• Official Oracle Contributor, Active community events/meetups organizer, and open source projects contributor
• Proficient in designing scalable APIs with gRPC, tRPC, and Protobuf, implementing CI/CD pipelines with GitLab CI/GitHub Actions, Docker, and Terraform.
• Holds a Bachelor’s degree in Automation and Computer Technologies. Strong background in system design, cloud-native architectures, and observability practices, including structured logging, metrics, and tracing.

• Full-stack software engineer with an MS degree in Computer Science;
• Designed and operated event-driven, cloud-native architecture.
• Back-End: Node.js, NestJS, Express (8 years); SQL/NoSQL DBs, performance optimization, data processing (Python), ML pipelines, CI/CD DevOps practices. Wide experience with Databases (MongoDB, PostgreSQL, MySQL, DynamoDB, etc.);
• Front-End: React (including forms, dashboards, admin tools), 6 years.
• Unit and E2E tests (Karma, Jest, Cypress, Playwright)
• Expert in serverless AWS architecture: Lambda functions, asynchronous message queues SQS, RabbitMQ; Ownership from requirements to production in serverless/event-driven B2B systems.
• Built demand forecasting with TimeGPT, TimesFM, TiREX; integrated Python ML pipelines into NestJS via RabbitMQ; implemented an AI chatbot for inventory insights and recommendations (using LangChain principles)
• Developed an AI-powered inventory & demand planning platform for e-commerce merchants; built a multi-tenant CRM for service companies and a real estate platform with direct customer requirements integration.

• 6+ Years of Software Engineering Experience (full-stack) with scalable architectures, clean APIs, and responsive interfaces. Communication skills and a product mindset. Ownership mentality - comfortable taking a feature from idea to production. Ownership mentality - comfortable taking a feature from idea to production.
• Experience working with AI or LLM-based applications, B2B or enterprise customers, including for fintech and crypto applications using JavaScript, Node, NestJS, React, and PostgreSQL.
• Optimized database interactions and workflows in corporate platforms with AWS Neptune, DynamoDB, Elasticsearch, and Redis, and redesigned test environments.
• Built asynchronous event handling and caching mechanisms with NATS, Redis, and BullMQ for product management and payment systems, improving reliability via message-driven communication. Integrations with multiple payment providers and API gateways, resulting in scalable architectures handling diverse data formats.
• Integrated monitoring tools like Prometheus and Grafana in deployment pipelines using GitLab CI, enabling metrics collection for endpoints and integrations in real-time services.

• Full-Stack Developer with 8+ years of extensive technical expertise in frontend and backend development, UI/UX architecture design, and team leadership.
• Demonstrated a solid ability to deliver scalable, performant, and user-centric solutions across various industries, including e-commerce, gaming, real estate, education, and healthcare.
• Proficient in modern JavaScript frameworks, including ReactJS, VueJS, and AngularJS, with expertise in state management libraries like Redux, MobX, and React-Query.
• Expertise in TypeScript for building scalable and type-safe front-end applications. - Skilled in UI/UX design systems, including creating reusable component libraries with tools like Storybook, Material-UI (MUI), and Chakra-UI.
• Proficient in Node.js, developing RESTful and GraphQL APIs with frameworks like Express, Koa, and Strapi.
• Extensive experience in database management, including PostgreSQL, MongoDB, Firebase, and RethinkDB.
• Skilled in building microservices architecture, optimizing server-side performance, and ensuring scalability.
• Has experience with cloud deployments, utilizing AWS, Heroku, Netlify, and DigitalOcean.

• 10+ years of experience designing and leading complex software solutions in fintech, AI, and payment systems, with expertise in JavaScript, TypeScript, Node.js, Python, Kubernetes, AWS and GCP services.
• Computer science education with applied physics and software development degrees, combined with hands-on expertise in DevOps, CI/CD pipelines, and advanced testing methodologies (TDD, BDD). Deep knowledge of software design principles, event sourcing, REST/GraphQL APIs, container orchestration, and secure, high-performance distributed systems.
• Architecting scalable, event-sourced payment hubs, AI-driven platforms, and multi-modal AI assistants using microservices, FastAPI, LangGraph, and Terraform.

• Senior JavaScript Engineer with 8+ years of experience; MS in Computer Science and Software Engineering.
• Node.js, TypeScript, PostgreSQL, and AWS; High-load projects with JS/TypeScript, Java, QT, and C++.
• AWS serverless, Lambda functions (migration architectures, reduced infrastructure costs by 40%, microservices that handle 10K+ concurrent requests with latency less than 200ms); Experience migrating monolithic systems to serverless and microservice architectures, optimizing performance and reducing infrastructure costs (~40%);
• Skilled in SDLC practices, including Agile/Scrum, CI/CD pipelines with GitHub Actions and Docker, and pre-test development using Jest and Playwright;

• Senior Full Stack Engineer with 5+ years of experience developing web and mobile applications;
• Implemented APIs and microservices with Node.js, Nest.js, PostgreSQL, including caching, queue management, and AWS infrastructure (Proxet, NovaPay, and Web3 Startup);
• Built interfaces and component libraries using React, Vue, React Native, Next.js, TypeScript, and JavaScript (Proxet (SSR web platform), NovaPay (mobile app), and Web3 Dashboard);
• Experienced in fintech, Web3, and enterprise platforms, delivering production features, maintaining existing systems, and working in Agile teams.

Senior Full-Stack Engineer with 17+ years of experience in versatile enterprise-grade projects for large service companies (Ciklum).

SOLID principles, OOP, and component-based design in cloud environments, CI/CD pipelines, and performant user interfaces used by large-scale applications:

• Back-End: Node.js, Next.js, PHP;
• DB: SQL (relational MySQL and PostgreSQL) and NoSQL;
• Front-end: JS/Typescript, React, Angular, Vue.js (pet); TanStack Query/Router, performance optimization;
• Cloud deployments on Azure, Vercel, and Netlify, CI/CD pipelines.