Senior backend engineer with 15+ years of experience building production-grade systems. I specialize in high-load and failure-resilient architectures: queues, retries, idempotency, long-running workflows, and real-time platforms. My work typically focuses on making distributed systems stable, predictable, and safe under stress. I’ve led development of privacy- and compliance-critical products, including encrypted messaging platforms and GDPR-aware systems. In these environments, reliability, correctness, and operational clarity matter more than speed. I’m usually brought in when backend systems need stronger guarantees around scalability, data safety, or failure handling. I actively use AI tools to improve development speed, debugging, and architectural exploration, while maintaining strict review and production quality standards. Tech stack: Node.js, TypeScript, MongoDB, Redis, RabbitMQ, event-driven architectures.

Aleksei Chenosov

Senior backend engineer with 15+ years of experience building production-grade systems. I specialize in high-load and failure-resilient architectures: queues, retries, idempotency, long-running workflows, and real-time platforms. My work typically focuses on making distributed systems stable, predictable, and safe under stress. I’ve led development of privacy- and compliance-critical products, including encrypted messaging platforms and GDPR-aware systems. In these environments, reliability, correctness, and operational clarity matter more than speed. I’m usually brought in when backend systems need stronger guarantees around scalability, data safety, or failure handling. I actively use AI tools to improve development speed, debugging, and architectural exploration, while maintaining strict review and production quality standards. Tech stack: Node.js, TypeScript, MongoDB, Redis, RabbitMQ, event-driven architectures.

Available to hire

Senior backend engineer with 15+ years of experience building production-grade systems.

I specialize in high-load and failure-resilient architectures: queues, retries, idempotency, long-running workflows, and real-time platforms. My work typically focuses on making distributed systems stable, predictable, and safe under stress.

I’ve led development of privacy- and compliance-critical products, including encrypted messaging platforms and GDPR-aware systems. In these environments, reliability, correctness, and operational clarity matter more than speed.

I’m usually brought in when backend systems need stronger guarantees around scalability, data safety, or failure handling.

I actively use AI tools to improve development speed, debugging, and architectural exploration, while maintaining strict review and production quality standards.

Tech stack: Node.js, TypeScript, MongoDB, Redis, RabbitMQ, event-driven architectures.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

English
Fluent
Spanish; Castilian
Intermediate

Work Experience

Lead Backend Developer at Key Revolution Inc.
May 1, 2022 - September 1, 2025
Led the design of an AI-enhanced therapy platform with real-time session transcription, key point extraction, and progress tracking for psychologists. Built a secure backend architecture with Node.js, PostgreSQL, Redis, and WebSockets integrating end-to-end encryption and GDPR/HIPAA-ready compliance. Developed analytics to detect recurring themes, emotional shifts, and therapy patterns, producing personalized therapy recommendations and patient progress summaries. Collaborated closely with mental health professionals to reduce administrative burden and bolster clinical decision-making during live sessions.
AI/NLP Backend Architect at Mental Health Tech Platform (Side Project)
September 1, 2024 - Present
Developed NLP-driven tools using Python/Django, React, and Golang microservices to process voice, video, email, and chat data for motivation and personality analysis. Integrated non-verbal signal recognition into Zoom/video streams enhancing behavioral insights for mental health applications.
Full-Stack Developer at Behavior Sales Lead
February 28, 2022 - September 3, 2025
Developed a web application using Node.js, React, and MongoDB. Created a web vulnerability scanner based on Kali tools and delivered interactive dashboards along with eLearning modules.
Lead Full-Stack Developer at ChatFortress
October 31, 2021 - September 3, 2025
Built CRMs, chatbots, hybrid apps, and real-time tools spanning 4 companies using MeteorJS, Express, and Ionic frameworks.
Senior Developer / Full-Stack / MeteorJS at Various Startups
December 31, 2018 - September 3, 2025
Contributed as a senior developer and full-stack engineer primarily developing with MeteorJS for multiple startup projects.
Lead Backend Developer at Vasomaly
September 1, 2025 - Present
Developed backend platform for vascular imaging, built DICOM ingestion and normalization pipeline, implemented Redis-based orchestration contract with Dagster, integrated AI-based vascular segmentation/analysis, and ensured secure data handling and scalable infrastructure to support hospital deployments and PACS interoperability.
Founder at Mental Health Tech Platform
September 1, 2024 - Present
Built a secure backend platform for real-time therapy sessions, including transcription, key point extraction, and progress tracking. Implemented GDPR/HIPAA-ready data handling and analytics to support clinicians, with an emphasis on reducing administrative overhead and improving clinical decision-making.
Sales Lead / Full-Stack Developer at Behavior
September 1, 2021 - February 1, 2022
Developed web applications on Node.js/React/MongoDB; built a web vulnerability scanner based on Kali tools; delivered interactive dashboards and eLearning modules.
Lead Full-Stack Developer at ChatFortress
July 1, 2019 - October 1, 2021
Created CRMs, chatbots, hybrid apps, and real-time tools across multiple companies using MeteorJS, Express, and Ionic.
Senior Developer / Full-Stack at Various Startups
January 1, 2015 - December 1, 2018
Contributed across multiple startups building real-time, cross-stack applications with MeteorJS; performed front-end and back-end development.
Founder at Mental Health Tech Platform (Side Project)
September 1, 2024 - Present
Architected secure backend for real-time therapy sessions using Node.js, PostgreSQL, Redis, and WebSockets; implemented end-to-end encryption and GDPR/HIPAA-ready data handling; built analytics for themes, emotional shifts, and progress tracking; developed insight-driven recommendations for clinicians.
Full-Stack Developer at Behavior
September 1, 2021 - February 1, 2022
Developed web application using Node.js, React, and MongoDB; built a web vulnerability scanner based on Kali tools; delivered interactive dashboards and eLearning modules.
Senior Developer / Full-Stack / MeteorJS at Various Startups
January 1, 2015 - December 1, 2018
Delivered full-stack solutions across multiple startups with MeteorJS, Express, and related technologies; contributed to building scalable, real-time features and robust architectures.
Lead Backend Developer at Vasomaly – Integral Solutions for Vascular Imaging
September 1, 2025 - Present
Leading backend development for a vascular/neurovascular image processing platform. Designed a DICOM ingestion and normalization pipeline (PACS/Orthanc, ZIP uploads, multi-series CT/MR data; converts to 3D NIfTI) with robust metadata extraction and S3 storage. Implemented a Redis-based orchestration contract between API and Orchestrator (Dagster) enabling asynchronous, scalable processing across distributed components. Integrated validation, normalization, AI-based vascular segmentation/analysis, and results delivery, laying groundwork for PACS interoperability and report generation.
Founder at Mental Health Tech Platform (Serenity Mind) – Side Project
September 1, 2024 - Present
Architecting an AI-enhanced therapy platform providing real-time session transcription, key point extraction, and progress tracking. Built a secure backend with Node.js, PostgreSQL, Redis, and WebSockets featuring end-to-end encryption and GDPR/HIPAA-ready data handling. Developed analytics modules to detect recurring themes, emotional shifts, and long-term therapy patterns, plus insight-driven recommendations to support clinical decision-making during live sessions.
Lead Full-Stack Developer at Behavior Sales
September 1, 2021 - February 1, 2022
Developed a Node.js/React/MongoDB web application; built a web vulnerability scanner based on Kali tools; delivered interactive dashboards and eLearning modules.
Senior Software Developer | Node.js/TS at ITMO Information Security
January 1, 2015 - December 31, 2018
Senior software development with a focus on backend architecture, security-oriented features, and scalable API/infrastructure work using Node.js and TypeScript.
Founder at Serenity Mind
September 1, 2024 - Present
Architecture and backend development for an AI-powered mental health therapy platform. Built secure backend with Node.js, PostgreSQL, Redis, and WebSockets, ensuring end-to-end encryption and GDPR/HIPAA-ready data handling. Developed analytics modules to detect recurring themes, emotional shifts, and long-term therapy patterns; created insight-driven tools to generate personalized therapy recommendations and summarize patient progress. Collaborated closely with clinicians to reduce administrative overhead and support decision-making during live sessions.
Sales Lead Full-Stack Developer at Behavior
September 1, 2021 - February 1, 2022
Developed web applications on Node.js + React + MongoDB; built a web vulnerability scanner based on Kali tools; delivered interactive dashboards and eLearning modules.

Education

Information Security at ITMO
January 11, 2030 - September 3, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Financial Services, Software & Internet, Government, Life Sciences, Professional Services, Media & Entertainment