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I’m Vitalii Chepil, a full stack engineer focused on building scalable SaaS products and intelligent automation, from MVP to enterprise. Over the past several years I’ve led end-to-end development of cloud-native platforms, designing secure multi-tenant backends and high-performance systems while keeping product delivery consistent through strong CI/CD practices.…

Vitalii Chepil

Full Stack Developer, Software Engineer, Back-End Developer, +7

5.0 (1 review)

I’m Vitalii Chepil, a full stack engineer focused on building scalable SaaS products and intelligent automation, from MVP to enterprise. Over the past several years I’ve led end-to-end development of cloud-native platforms, designing secure multi-tenant backends and high-performance systems while keeping product delivery consistent through strong CI/CD practices.…

Available to hire

I’m Vitalii Chepil, a full stack engineer focused on building scalable SaaS products and intelligent automation, from MVP to enterprise. Over the past several years I’ve led end-to-end development of cloud-native platforms, designing secure multi-tenant backends and high-performance systems while keeping product delivery consistent through strong CI/CD practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Software Engineer at IBM

September 1, 2023 - March 1, 2025

Led end-to-end development of scalable, cloud-native SaaS platforms for enterprise-grade AI applications and intelligent automation. Architected a secure multi-tenant system using NestJS, Next.js, GraphQL, and PostgreSQL, deployed on AWS Lambda, S3, and ECS. Designed and deployed RAG pipelines leveraging LangChain, GPT-4, and Pinecone for knowledge assistants and semantic search. Championed DevOps best practices, mentoring teams on Docker and robust CI/CD workflows via GitHub Actions. Contributed to Web3 R&D initiatives related to supply chain traceability and decentralized identity using MetaMask, OAuth2, and smart contract interfaces.

Coda Lead Full Stack Engineer at Coda

May 1, 2021 - July 1, 2023

Led architecture and implementation of a modular multi-product SaaS suite serving 100,000+ active users across analytics and reporting. Built component-driven frontends with Next.js, Tailwind CSS, and shadcn/ui integrated with API and AI services. Implemented backend services with NestJS, TypeORM, and Redis, deployed on AWS EC2, RDS, and Lambda. Embedded n8n workflow automation into dashboards and internal tools, reducing manual intervention by 60%. Integrated Web3 authentication with MetaMask, OAuth2, and JWT for decentralized identity and wallet-based access to premium features.

Full Stack Engineer at DataFleets

November 1, 2019 - March 1, 2021

Co-led end-to-end engineering of mobile-first AI-powered SaaS MVPs for secure data collaboration in healthcare and finance. Developed cross-platform React Native mobile apps and integrated real-time data layers with Firebase, GraphQL, and Node.js backends. Built modular backend services focused on encrypted data flows, granular permissions, and scalable APIs using Express, JWT, and PostgreSQL. Integrated NLP features using TensorFlow.js, spaCy, and GPT-3 for smart search, summarization, and conversational AI. Designed a centralized design system with Storybook and built job-based AI processing pipelines for scalable workflow execution.

Full Stack Developer at Turbo Labs

June 1, 2017 - November 1, 2018

Built high-scale SaaS applications for eCommerce and analytics using NestJS, PostgreSQL, Redis, and Supabase. Developed real-time admin panels and dashboards with React, Redux Toolkit, and Material UI. Led infrastructure provisioning with Terraform and managed deployments with Docker, maintaining automation via GitHub Actions. Architected scalable microservices and internal APIs for data ingestion, analytics pipelines, and third-party integrations.

Software Engineer at BrightEdge

April 1, 2015 - May 1, 2017

Delivered cross-platform SaaS solutions for mobile logistics and healthcare products using React Native, Firebase, and Redux. Built backend services with Node.js, Express, and MongoDB with integrations for payments, notifications, and third-party APIs. Architected push notification systems using Firebase Cloud Messaging and background workers to support offline syncing and queued job dispatch. Designed modular UI aligned with Figma prototypes, reducing design-to-development time by 35% and improving UX consistency.

Junior Web Developer at NovaDev

October 1, 2012 - February 1, 2015

Built modular, maintainable frontends using Backbone.js and Underscore, later transitioning to AngularJS for more complex client-side logic. Designed RESTful APIs and admin dashboards using Laravel 4.x and MySQL for admin tooling and mobile app backends. Created real-time dashboards using AJAX, Socket.IO, and Chart.js. Introduced Node.js and Grunt for build automation and faster development pipelines. Collaborated with UI/UX teams to convert mockups into interactive interfaces using SASS, Bootstrap, and jQuery UI.

Junior Web Developer at ByteWave Solutions

April 1, 2010 - August 1, 2012

Developed dynamic web interfaces with HTML5, CSS3, and jQuery for fast, responsive marketing and portfolio websites. Built server-side logic with PHP and MySQL using CodeIgniter and early Laravel 3.x. Created custom WordPress themes and plugins, implemented SEO-friendly markup, and added basic analytics integrations. Worked with Bootstrap (2011+) to support mobile-responsive layouts.