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I’m a senior full-stack / back-end engineer focused on building production-grade APIs and multi-tenant SaaS platforms. I’ve designed and shipped TypeScript (NestJS-style) services, REST APIs, and reliable integrations with third-party tools such as OpenAI/LLMs, CRM/messaging systems, webhooks, and SDKs—always with tenant data isolation and operational robustness in mind. I enjoy working end-to-end: from background jobs and event-driven flows to UI work in Vue/Nuxt when it’s needed, and smooth deployments via Docker and CI/CD. In my day-to-day work I use modern AI coding assistants (Cursor, Copilot, Cloud IDE workflows) while partnering with product stakeholders to debug, improve performance, and deliver dependable features for high-traffic systems.…I’m a senior full-stack / back-end engineer focused on building production-grade APIs and multi-tenant SaaS platforms. I’ve designed and shipped TypeScript (NestJS-style) services, REST APIs, and reliable integrations with third-party tools such as OpenAI/LLMs, CRM/messaging systems, webhooks, and SDKs—always with tenant data isolation and operational robustness in mind. I enjoy working end-to-end: from background jobs and event-driven flows to UI work in Vue/Nuxt when it’s needed, and smooth deployments via Docker and CI/CD. In my day-to-day work I use modern AI coding assistants (Cursor, Copilot, Cloud IDE workflows) while partnering with product stakeholders to debug, improve performance, and deliver dependable features for high-traffic systems.

nik it a K am ysh nik ov

Full Stack Developer, Back-End Developer, Software Engineer, +2

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I’m a senior full-stack / back-end engineer focused on building production-grade APIs and multi-tenant SaaS platforms. I’ve designed and shipped TypeScript (NestJS-style) services, REST APIs, and reliable integrations with third-party tools such as OpenAI/LLMs, CRM/messaging systems, webhooks, and SDKs—always with tenant data isolation and operational robustness in mind. I enjoy working end-to-end: from background jobs and event-driven flows to UI work in Vue/Nuxt when it’s needed, and smooth deployments via Docker and CI/CD. In my day-to-day work I use modern AI coding assistants (Cursor, Copilot, Cloud IDE workflows) while partnering with product stakeholders to debug, improve performance, and deliver dependable features for high-traffic systems.…I’m a senior full-stack / back-end engineer focused on building production-grade APIs and multi-tenant SaaS platforms. I’ve designed and shipped TypeScript (NestJS-style) services, REST APIs, and reliable integrations with third-party tools such as OpenAI/LLMs, CRM/messaging systems, webhooks, and SDKs—always with tenant data isolation and operational robustness in mind. I enjoy working end-to-end: from background jobs and event-driven flows to UI work in Vue/Nuxt when it’s needed, and smooth deployments via Docker and CI/CD. In my day-to-day work I use modern AI coding assistants (Cursor, Copilot, Cloud IDE workflows) while partnering with product stakeholders to debug, improve performance, and deliver dependable features for high-traffic systems.

Available to hire

I’m a senior full-stack / back-end engineer focused on building production-grade APIs and multi-tenant SaaS platforms. I’ve designed and shipped TypeScript (NestJS-style) services, REST APIs, and reliable integrations with third-party tools such as OpenAI/LLMs, CRM/messaging systems, webhooks, and SDKs—always with tenant data isolation and operational robustness in mind.

I enjoy working end-to-end: from background jobs and event-driven flows to UI work in Vue/Nuxt when it’s needed, and smooth deployments via Docker and CI/CD. In my day-to-day work I use modern AI coding assistants (Cursor, Copilot, Cloud IDE workflows) while partnering with product stakeholders to debug, improve performance, and deliver dependable features for high-traffic systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

French

Advanced

Russian

Fluent

Work Experience

AI Solution Engineer at Neogentrix Holding

March 1, 2026 - Present

Built and supported a conversational AI and operations platform for an international education group, handling over 134k+ messages. Implemented LLM workflows including RAG, intent routing, confidence thresholds, and human escalation. Integrated third-party APIs/SDKs/webhooks (including CRM, messaging, and OpenAI) into TypeScript back-end services. Designed queue-based long-running jobs while ensuring tenant data isolation. Shipped and maintained production systems, including using Cursor/Copilot/Cloud Code to move quickly from scope to working services.

Full-stack / Back-end Developer at TON Station

September 1, 2024 - February 1, 2026

Worked on a high-traffic multi-tenant gaming SaaS with millions of users, concurrent payments, and event-driven services. Built and maintained TypeScript/Node.js (NestJS-style) microservices and REST APIs for payments, accounts, and platform events. Owned webhook and third-party SDK integrations, schema changes, background jobs, and tenant isolation in a high-load environment. Managed production debugging, GitLab CI/CD, and Docker deployments, reviewing PRs and shipping product changes via Jira.

Back-end Developer at Livecadia

August 1, 2023 - September 1, 2024

Built TypeScript back-ends on an AWS serverless architecture and improved reliability for live device and stream workflows. Integrated real-time device APIs over MQTT with AWS IoT. Automated deployments using Jenkins and CloudFormation, ensuring stable operation of streaming and device-driven processes.

Full-stack Developer at Mintify

November 1, 2022 - August 1, 2023

Shipped a trading terminal in Vue 3/Nuxt 3 and implemented Node.js REST APIs for wallet/marketplace features. Designed and built payment and trading-related integrations including SDKs for marketplace functionality, plus an external trading bot webhook layer (OneSignal + webhook layer). Worked on a fintech SaaS for digital asset trading and NFT marketplaces.

Automation Developer at ING

October 1, 2021 - February 1, 2023

Designed and ran production automations for a regulated bank environment, including API integrations and Python/SQL workflows. Provided incident support and delivered change-controlled releases. Focused on reliable automation execution in operational banking contexts.

Automation Developer at BrightKnight Reply & Group P&V

November 1, 2019 - October 1, 2021

Analyzed processes with business and IT, built automations to replace repetitive work, and executed UAT. Delivered and handed over runbooks to stakeholders, improving operational readiness and reducing manual effort through automation.