Robert is available for hire
Hire RobertRobert Keyan
Verified Expert in Engineering
Full-stack Developer
Yerevan, Armenia
Toptal member since September 20, 2022
Bio
Robert is a senior full-stack engineer with 12+ years building production web apps on the MERN stack. He's shipped eCommerce platforms, mobile apps, and AI SaaS products for startups and enterprises across the US, Germany, and the UAE. His core is Node.js, NestJS, PostgreSQL, React, Next.js, and React Native, with solid experience in Redis, Docker, AWS, and CI/CD pipelines. He's led teams as both tech lead and CTO—running sprints, driving architecture decisions, and keeping delivery on track.
Portfolio
Instantly
AI Agents, AI Integration, AI Tools, TypeScript, PostgreSQL, Claude, Claude API...
Al Tayer Digital - Main
JavaScript, React, Node.js, RabbitMQ, Microservices, Elasticsearch, PostgreSQL...
Dealcode.ai
TypeScript, JavaScript, NestJS, Redis, Elasticsearch, OpenAI GPT-4 API, Node.js...
Experience
- JavaScript - 12 years
- TypeScript - 10 years
- Node.js - 9 years
- React - 8 years
- Database Design - 8 years
- Software Architecture - 7 years
- Next.js - 5 years
- NestJS - 4 years
Work Experience
Full-stack AI Engineer
2025 - 2026
Instantly
- Built Instantly's AI SDR, a multi-agent LLM system that autonomously discovers, qualifies, and recommends B2B leads at scale.
- Architected the decision engine and recommendation orchestrator that turns raw enrichment data into ranked lead recommendations, with per-agent prompt strategies selected via a typed agent registry.
- Engineered the distributed BullMQ/Redis job pipeline and decision engine powering it, shipping end-to-end across NestJS, Node.js, and React.
Technologies: AI Agents, AI Integration, AI Tools, TypeScript, PostgreSQL, Claude, Claude API, OpenAI, Langfuse, LangChain, LangGraph, Next.js, NestJS, Fastify, React, Tailwind CSS, Artificial Intelligence (AI), AI-assisted Development, AI-generated Code, Clean Code, SaaS
Senior Full-stack Engineer
2024 - 2026
Al Tayer Digital - Main
- Worked at one of the leading eCommerce companies in the Middle East, Ounass (Al Tayer Group).
- Developed and maintained scalable front-end and back-end systems in a production environment with high traffic and strict reliability requirements.
- Improved application performance and load times through optimization strategies, directly impacting conversion and engagement.
- Collaborated cross-functionally with product, design, and back-end teams to deliver features end-to-end under tight deadlines.
Technologies: JavaScript, React, Node.js, RabbitMQ, Microservices, Elasticsearch, PostgreSQL, MySQL, Express.js, Apache Kafka, Claude Code, Vercel, Claude API, Code Review, Automated Testing, AI Agents, Claude, Firebase, Stripe, Marketplaces, Shadcn, Amazon S3 (AWS S3), Amazon Simple Queue Service (SQS), Testing, Dashboards, Cursor AI, OpenAI, Full-stack Development, Solution Architecture, Prompt Engineering, Tailwind CSS, Artificial Intelligence (AI), AI-generated Code, Clean Code, WooCommerce
Senior Full-stack Engineer
2024 - 2025
Dealcode.ai
- Developed and launched the Dealcode Chrome extension from the ground up.
- Designed and released a new email scheduler for cold outreach email scheduling.
- Refactored legacy code on the back end, improved the API, and focused mostly on optimization.
Technologies: TypeScript, JavaScript, NestJS, Redis, Elasticsearch, OpenAI GPT-4 API, Node.js, MySQL, Vercel, Twilio, Code Review, Automated Testing, Firebase, AI Tools, Shadcn, Amazon S3 (AWS S3), Amazon Simple Queue Service (SQS), AWS Lambda, AI Integration, Testing, Dashboards, Terraform, OpenAI, Full-stack Development, Solution Architecture, Tailwind CSS, AI-generated Code, Clean Code, SaaS
Engineering Manager | Back-end Developer
2023 - 2024
Internity
- Joined during technical challenges and revamped development processes, initiated back-end refactoring to enhance performance, and updated outdated technology stacks.
- Engaged in business discussions with the management team, aligning technical insights with overarching company objectives.
- Actively managed release processes organized technical discussions among developers, and facilitated sprint planning sessions, ensuring alignment with project objectives and timelines.
- Aligned company tech vision with practical implementation, facilitating strategic decision-making and future-proofing the organization's technology stack.
Technologies: React Native, NestJS, Node.js, TypeScript, Docker, Amazon EC2, MariaDB, TypeORM, Supabase, Monorepos, APIs, Twilio, Code Review, Automated Testing, Firebase, Amazon S3 (AWS S3), AWS Lambda, Testing, Dashboards, Expo, Full-stack Development, Clean Code
Senior Full-stack Engineer
2022 - 2023
Sheesha Finance
- Led the full-stack development initiatives for the "Sheesha Finance" decentralized finance platform, leveraging Angular, Nest.js, and AWS services.
- Actively engaged in strategic business discussions surrounding the company's new products, providing invaluable insights and expertise to guide decision-making.
- Managed to complete the MVP of the new Launchpad platform (not released) using NestJS and Angular.
Technologies: TypeScript, JavaScript, React, Angular, NestJS, Node.js, Redux, Front-end, Back-end, Full-stack, Database Design, Git, Next.js, Web3.js, Chakra UI, Back-end Architecture, Payment Gateways, Web3, Monorepos, APIs, React Query, Code Review, Automated Testing, Amazon S3 (AWS S3), Testing, Material UI, Dashboards, Full-stack Development, Clean Code
Co-founder | CTO
2022 - 2023
Self-employed
- Established and nurtured a small IT outsourcing team alongside a partner. Engineered a scalable platform with cost-effective maintenance for the company.
- Led successful collaborations with local and EU clients on diverse NFT projects using React, Node.js, Web 3.0, and Solidity.
- Contributed significantly to the inception of the AI-based startup https://saima.ai.
- Developed NFT announcement marketplace with Next.js and NestJS, accompanied by chatbot integrations for Telegram and Discord platforms.
Technologies: Angular, React, Redux, Next.js, NestJS, Node.js, HTML, Database Design, HTML5, CI/CD Pipelines, Webpack, PostgreSQL, Mongoose, MongoDB, JavaScript, Web3.js, Solidity, Ethers.js, Smart Contracts, API Architecture, Redis, Service Workers, Chrome Extensions, Bash Script, TypeScript, Software Architecture, Docker, CSS, WebSockets, RxJS, Jest, Unix, WebStorm, Git, Agile, Styled-components, Sass, GraphQL, REST APIs, Bash, Telegram Bot API, AWS Amplify, Technical Architecture, Responsive UI, Pixel Perfect, API Integration, Data Visualization, Front-end, MEAN Stack, Full-stack, Back-end Architecture, Payment Gateways, Supabase, Web3, Monorepos, APIs, CTO, Code Review, Automated Testing, Firebase, Stripe, Marketplaces, Amazon S3 (AWS S3), Testing, Dashboards, Full-stack Development, Clean Code
Senior Software Engineer | Front-end Lead
2021 - 2022
Codulate
- Deeply involved in several projects, including being a core team member of the US-based startup "Hivot."
- Architected the Hivot mobile app entirely from scratch, employing technologies like React Native and DynamoDB.
- Served as a part-time consultant for an IoT product for one of Codulate's clients. This diverse involvement has allowed me to broaden my expertise and contribute across different domains.
- Played an active role in Codulate's growth by participating in the hiring process and assisting in onboarding new developers.
- Collaborated on team expansion has been a rewarding experience, allowing me to contribute to the company's talent acquisition and nurturing process.
Technologies: React Native, Angular, Amazon Web Services (AWS), NestJS, Amazon DynamoDB, Node.js, React, Database Design, JavaScript, Software Architecture, CSS, HTML5, TypeScript, Redux, Docker, TypeORM, HTML, PostgreSQL, WebSockets, Jest, Unix, WebStorm, Git, Agile, Styled-components, Sass, REST APIs, MobX, AWS Amplify, Amazon Cognito, Technical Architecture, Responsive UI, Pixel Perfect, API Integration, Front-end, Full-stack, Back-end Architecture, APIs, React Query, Code Review, Testing, Material UI, Dashboards, Expo, Full-stack Development, Clean Code
Senior Software Engineer | Front-end Lead
2019 - 2021
Eccenca
- Enhanced front-end development by establishing and executing optimal practices, elevating code quality, and amplifying development efficiency by modernizing outdated React infrastructure.
- Played a pivotal role in strategic discussions for application redesign, seamlessly integrating the new version into the pre-existing application architecture with finesse.
- Substantially contributed to the recruitment and successful onboarding of front-end engineers in Armenia.
- Contributed to Silk open-source linked data integration framework, which is proactively used in the company's products.
Technologies: React, Redux, TypeScript, HTML5, Database Design, JavaScript, Software Architecture, CSS, Agile, Docker, HTML, Unix, WebStorm, Git, Styled-components, Sass, REST APIs, Cypress, SPARQL, Blueprint, Technical Architecture, Responsive UI, Pixel Perfect, API Integration, Data Visualization, Front-end, APIs, Code Review, Testing, Dashboards, Full-stack Development, Clean Code
Software Engineer
2018 - 2019
Adobe (formerly Workfront)
- Joined the Datatable module development team at Adobe Workfront as a React developer, contributing expertise in React to enhance module functionalities.
- Actively participated in release processes, diligently monitored customer feedback, continuously tracked application performance, and ensured the smooth operation and high quality of the application.
- Took on a mentoring role for newly onboarded junior developers, providing valuable instructions and guidance to foster their growth within the team.
Technologies: JavaScript, Agile, React, Redux, Jest, Database Design, Software Architecture, CSS, HTML5, TypeScript, HTML, Unix, WebStorm, Git, Styled-components, Sass, REST APIs, Responsive UI, Pixel Perfect, API Integration, Front-end, APIs, Code Review, Dashboards, Full-stack Development, Progressive Web Applications (PWAs), Clean Code, SaaS
Full-stack Developer | Co-founder
2014 - 2018
Self-employed
- Led the foundation of an educational startup, overseeing the creation of an online platform and managing technical solutions with a team of skilled individuals.
- Contributed to the CRM platform at BostonBestRate.com, focusing on front-end development and augmenting functionalities within the Angular framework.
- Played a key role in enhancing the social media marketing platform Bidfox.ru by utilizing Angular and Yii2 frameworks as a full-stack developer.
- Collaborated on a South Korean gambling platform with an Armenian developer team, employing MEAN Stack development skills.
- Contributed to developing the "Voxy" CMS by integrating social network APIs (Facebook, Twitter, Linkedin) using the Yii framework.
- Created diverse marketing websites for international markets using WordPress and Joomla!
Technologies: JavaScript, Angular, Node.js, Express.js, PostgreSQL, MongoDB, TypeScript, RxJS, Vue, Database Design, CSS, HTML5, Webpack, Gulp, Bootstrap, TypeORM, HTML, Software Architecture, AngularJS, Unix, WebStorm, Git, Sass, REST APIs, Responsive UI, Pixel Perfect, API Integration, Front-end, MEAN Stack, Full-stack, Back-end Architecture, eCommerce, APIs, Code Review, Full-stack Development, Progressive Web Applications (PWAs), WooCommerce
Junior Web Developer
2014 - 2014
10Web
- Contributed to website development for local businesses.
- Enhanced the previously well-known "form maker" plugin in Joomla.
- Involved in feature implementation, project delivery, and user feedback response. Gained expertise in website development.
Technologies: JavaScript, PHP, MySQL, WordPress, Joomla, CSS, HTML5, jQuery, HTML, Bootstrap, Pixel Perfect, Front-end, Back-end Architecture, Full-stack Development, Clean Code
Project History
Eccenca's Data Management Web Application
https://eccenca.com/Eccenca is an automated decision-processing platform for enterprises to infuse knowledge into data to increase efficiency. As a senior front-end engineer, I delivered new features to customers, participated in the application redesign process, and led a team of experts in Armenia.
Adobe Workfront
Adobe Workfront is an enterprise platform that helps streamline project planning and execution. As a senior front-end engineer, I developed new features in the data table module. I successfully delivered a custom drag-and-drop feature on React to the data table module.
Education
2011 - 2017
Bachelor's Degree in Security of Computer and Information Systems and Data Protection
State Engineering University of Armenia - Yerevan, Armenia
Certifications
APRIL 2026 - PRESENT
AI Fluency: Framework & Foundations
Anthropic Education
FEBRUARY 2023 - PRESENT
System Design Interview Guide for Software Architecture
Udemy
AUGUST 2022 - PRESENT
Introduction to Digital Transformation with Google Cloud
Coursera
Skills
Libraries/APIs
Node.js, React, REST APIs, Claude API, Telegram Bot API, React Query, Web3.js, Vue, RxJS, jQuery, MooTools, MobX, AWS Amplify, Stripe
Tools
Git, Claude Code, Shadcn, Claude, Amazon Simple Queue Service (SQS), Expo, WebStorm, Webpack, Gulp, Mongoose, Amazon Cognito, Jira, Open Neural Network Exchange (ONNX), Zsh, IntelliJ IDEA, RabbitMQ, Terraform
Languages
JavaScript, HTML5, CSS, TypeScript, HTML, GraphQL, Solidity, Bash Script, PHP, Sass, SPARQL, Bash
Frameworks
React Native, NestJS, Next.js, Redux, Jest, Tailwind CSS, Angular, Express.js, Material UI, AngularJS, Bootstrap, Cypress, Blueprint, LangGraph, Fastify
Paradigms
Back-end Architecture, Testing, Clean Code, Database Design, MEAN Stack, Automated Testing, Agile, Kanban, E2E Testing, API Architecture, Microservices
Platforms
Vercel, Amazon Web Services (AWS), Twilio, Firebase, AWS Lambda, Docker, WordPress, Joomla, Unix, MacOS, Netlify, Amazon EC2, Apache Kafka, Langfuse, WooCommerce
Storage
PostgreSQL, MongoDB, Amazon S3 (AWS S3), MySQL, Amazon DynamoDB, Redis, MariaDB, Elasticsearch
Other
TypeORM, Pixel Perfect, API Integration, Front-end, Full-stack, APIs, Code Review, Dashboards, Full-stack Development, Software Architecture, CI/CD Pipelines, Documentation, Technical Architecture, Responsive UI, Data Visualization, Supabase, Web3, Monorepos, CTO, AI Agents, Marketplaces, AI Tools, AI Integration, Cursor AI, OpenAI, Solution Architecture, Prompt Engineering, Artificial Intelligence (AI), AI-assisted Development, AI-generated Code, SaaS, Chrome Extensions, WebSockets, Styled-components, Ethers.js, Smart Contracts, Service Workers, Application Security, Web Development, Web Consulting, System Design, Serverless, Chakra UI, Back-end, Payment Gateways, eCommerce, OpenAI GPT-4 API, Progressive Web Applications (PWAs), LangChain
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring