Birkan is available for hire
Hire BirkanBirkan Alp Yaman
Verified Expert in Engineering
Node.js Developer
Istanbul, Turkey
Toptal member since January 10, 2022
Bio
Birkan is an AI-focused full-stack engineer and architect specializing in building intelligent automation systems and AI-enabled applications. He integrates LLMs, AI agents, and data pipelines into scalable platforms using React, Next.js, React Native, and TypeScript. Birkan's work focuses on automating workflows, analyzing data, and building production-ready systems that combine modern cloud infrastructure with AI-driven capabilities.
Portfolio
Evergreen Services Group LLC
Node.js, Replit, Full-stack, React, JavaScript, PostgreSQL...
Recursive Self Improvement Labs, Inc.
React, Node.js, TypeScript, Python, Redux, Claude Code, PostgreSQL, MySQL...
Fairstone
Next.js, Nx, Expo, React, React Native, Node.js, NestJS, REST, Playwright, Jest...
Experience
- Node.js - 8 years
- Next.js - 8 years
- React Native - 7 years
- GraphQL - 6 years
- NestJS - 6 years
- Amazon Web Services (AWS) - 6 years
- AI Automation - 4 years
- Artificial Intelligence (AI) - 4 years
Preferred Environment
Jira, GitHub, Slack, Cursor AI, Claude Code, Linear
The most amazing...
...thing I've developed with a team of 10+ people is an ERP application that has been used by more than 10,000 people.
Work Experience
Senior Full-stack Developer
2026 - PRESENT
Evergreen Services Group LLC
- Architected and delivered a full-stack platform for an M&A deal marketplace, designing the system architecture, API layer, and scalable data model to support complex deal workflows and document management across multiple organizations.
- Built an AI-assisted workflow system that automates parts of the deal evaluation and data processing pipeline, integrating LLM APIs and structured data analysis to improve information extraction and reduce manual review time.
- Designed and implemented a scalable cloud deployment architecture, including secure file storage, back-end services, and API integrations, enabling the platform to handle growing datasets and multi-user collaboration in a production environment.
- Implemented secure document handling and storage architecture, integrating external storage services and API-based file pipelines to support large document uploads, structured data extraction, and reliable access control.
- Established modern development workflows and CI/CD processes, enabling faster iteration cycles, automated testing, and stable deployments while maintaining a maintainable monorepo codebase.
Technologies: Node.js, Replit, Full-stack, React, JavaScript, PostgreSQL, Artificial Intelligence (AI), Claude API, ChatGPT API, Web Development, Next.js, TypeScript, AI Automation, Amazon Web Services (AWS), GraphQL, Claude Code, React Navigation, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Supabase, Software Architecture, API Integration, Claude
Full-stack Engineer
2026 - 2026
Recursive Self Improvement Labs, Inc.
- Migrated a fully client-side Electron desktop application to a scalable back-end architecture using AWS Lambda, reducing security risks by removing exposed API keys and enabling centralized request handling.
- Implemented AWS services, including Amazon S3 for file storage, DynamoDB for structured data persistence, and Cognito for authentication, establishing a secure and production-ready back-end infrastructure.
- Designed and deployed a serverless API layer to handle AI requests and user data processing, improving system reliability and enabling user-level tracking for usage, tokens, and access control.
Technologies: React, Node.js, TypeScript, Python, Redux, Claude Code, PostgreSQL, MySQL, Claude, AWS Lambda, Amazon S3 (AWS S3), Amazon Web Services (AWS), Amazon DynamoDB, Amazon Cognito, Serverless Architecture, AWS Serverless Application Model (SAM), Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Supabase, Software Architecture, API Integration
Senior Full-stack Developer
2023 - 2026
Fairstone
- Architected a unified front-end monorepo (Nx) consolidating Next.js, Node.js, and Expo apps, improving cross-project code reuse by 40%.
- Designed and maintained scalable Node.js services powering web and mobile apps, reducing API latency by 30% through query and caching optimizations.
- Delivered a cross-platform Expo mobile application aligned with web features, accelerating release cycles by 25%.
- Implemented shared TypeScript libraries and design systems across projects, decreasing duplicated logic by 35%.
- Built CI/CD pipelines for monorepo deployments, reducing build time by 30% and minimizing release errors across environments.
- Integrated automated testing (Jest, Playwright) across web and mobile, increasing overall coverage to 75%+.
- Optimized Next.js SSR and server-side logic to improve Lighthouse performance scores by 20+ points.
- Standardized environment configuration and release strategy for DEV/QA/PROD, improving deployment stability and traceability.
Technologies: Next.js, Nx, Expo, React, React Native, Node.js, NestJS, REST, Playwright, Jest, CI/CD Pipelines, Tailwind CSS, AI Automation, .NET, Claude API, ChatGPT API, Web Development, Payment Processing, JavaScript, TypeScript, Artificial Intelligence (AI), Amazon Web Services (AWS), GraphQL, Claude Code, React Navigation, Apollo, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration, Claude, Agentic AI
Front-end Developer
2022 - 2023
CRED
- Led the migration of multiple Next.js applications into an Nx monorepo, reducing build times by 35% and improving code reuse across shared libraries.
- Architected and deployed scalable GraphQL APIs with Apollo, optimizing query performance and decreasing average response time by 28%.
- Implemented CI/CD pipelines with CircleCI and Docker, cutting deployment failures by 40% and standardizing multi-environment releases (DEV/QA/PROD).
- Reduced bundle size by 22% through code-splitting, lazy loading, and performance optimizations across Next.js applications.
- Introduced automated unit and E2E testing (Jest, Playwright), increasing test coverage to 80%+ and reducing regression issues.
- Established front-end architecture standards (TypeScript, Tailwind, shared UI libraries), improving developer velocity across teams.
Technologies: React, GraphQL, JavaScript, Node.js, Python, Tailwind CSS, AI Automation, ChatGPT API, Web Development, Payment Processing, NestJS, Next.js, TypeScript, Artificial Intelligence (AI), Amazon Web Services (AWS), Claude Code, React Navigation, Apollo, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration, Claude, Agentic AI
Front-end Engineer
2022 - 2022
Fit Analytics GmbH
- Updated old code bases (CoffeeScript) to modern development standards, improving functionality with React for an apparel's machine learning platform.
- Designed reusable and reliable components to use in all projects.
- Tracked and fixed bugs using Jira as a reporting tool.
Technologies: JavaScript, TypeScript, React, Front-end, Node.js, Preact, User Experience (UX), User Interface (UI), UI Testing, GitHub, CSS, HTML, Git, Webpack, Figma, Jest, Cypress, Web Development, Payment Processing, Next.js, React Navigation, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration
Full-stack Developer
2021 - 2022
The Boundary
- Used Three.js and built 3D web pages that users can control.
- Created virtual reality tours for museums and plazas and.
- Tracked tasks and fixed bugs using Jira as a reporting tool.
Technologies: TypeScript, Next.js, NestJS, Redux, Git, GraphQL, Express.js, HTML, CSS, Front-end, User Experience (UX), User Interface (UI), UI Testing, GitHub, Full-stack, Back-end, Docker, React Native, Redis, PostgreSQL, Webpack, Figma, SQL, AWS Lambda, Material UI, Jest, Cypress, MongoDB, Amazon Web Services (AWS), Web Development, Stripe API, Payment Processing, JavaScript, AI Automation, Artificial Intelligence (AI), React Navigation, Apollo, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration
Full-stack Developer
2021 - 2021
Brewin Dolphin
- Created a lifecycle workflow for investment applications.
- Developed an investment and risk analysis system supported by artificial intelligence.
- Tracked the user steps and errors with Google Analytics.
Technologies: React, Node.js, TypeScript, Next.js, Redux, Git, Amazon S3 (AWS S3), HTML, CSS, Front-end, User Experience (UX), User Interface (UI), UI Testing, RxJS, PostgreSQL, Webpack, Figma, AWS Lambda, Jest, Cypress, Web Development, Stripe API, Payment Processing, JavaScript, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration, MySQL
Full-stack Developer
2020 - 2021
PayPad
- Created exportable pivot tables for detailed report pages.
- Created manageable report charts for detailed reports.
- Tracked and fixed bugs using Jira as a reporting tool.
Technologies: JavaScript, Angular, Node.js, Amazon S3 (AWS S3), TypeScript, React Native, Git, Express.js, HTML, CSS, RxJS, Front-end, User Experience (UX), User Interface (UI), UI Testing, GitHub, Full-stack, Back-end, GraphQL, Redis, PostgreSQL, Figma, SQL, AWS Lambda, Material UI, Jest, Cypress, Leadership, MongoDB, Amazon Web Services (AWS), .NET, Web Development, Stripe API, Payment Processing, NestJS, Next.js, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration, MySQL
Full-stack Developer
2018 - 2020
Datasoft
- Developed an accounting application that can be used mouse-free.
- Created manageable form pages for invoice and reporting panels.
- Tracked and fixed bugs using Jira as a reporting tool.
Technologies: React, Redux, Google Cloud, Docker, Node.js, PostgreSQL, Redis, TypeScript, Next.js, Git, HTML, CSS, Back-end, Front-end, User Experience (UX), User Interface (UI), UI Testing, GitHub, Full-stack, C#, Amazon S3 (AWS S3), Webpack, SQL, Material UI, Jest, Leadership, .NET, Web Development, NestJS, JavaScript, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration, MySQL
Full-stack Developer
2016 - 2018
Neyasis Technology
- Developed a reporting app used by a global company.
- Tracked tasks and fixed bugs using Jira as a reporting tool.
- Developed an electronic card use as a ticket for football matches.
Technologies: JavaScript, React, Angular, C#, TypeScript, Git, HTML, CSS, RxJS, Firebase, Front-end, User Experience (UX), User Interface (UI), UI Testing, GitHub, Full-stack, Back-end, Google Cloud, Redis, SQL, Material UI, Jest, MongoDB, .NET, Web Development, Payment Processing, NestJS, Next.js, GraphQL, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Software Architecture, API Integration, MySQL
Experience
Fabric Supplier
With a team of six people, we developed an application where the test results obtained in the fabric laboratories of LCW, an international clothing brand, can be reported. The application had a structure that offered more than 60 report options and created new report models.
Datasoft
Datasoft, international accounting software that we developed with a team of eight people, is an application that stands out with its manageable invoice screens, dynamic tax arrangements, and detailed reporting systems.
Investment Application
We designed a system where users enter information about their investments. The system then used this information to analyze the users' risk and show them the future profit and loss averages on charts.
Fairstone KYC & Review Platform
Architected and delivered a scalable, multi-application front-end platform supporting digital KYC and financial review workflows. Designed a configuration-driven workflow system enabling rapid adaptation of complex onboarding and client assessment processes across environments.
Built within a unified Nx monorepo, the platform supports shared domain libraries, automated CI/CD pipelines, optimized API integration, and a strict automated testing strategy. The system improved release stability, reduced manual operational overhead, and accelerated feature delivery across web applications.
Built within a unified Nx monorepo, the platform supports shared domain libraries, automated CI/CD pipelines, optimized API integration, and a strict automated testing strategy. The system improved release stability, reduced manual operational overhead, and accelerated feature delivery across web applications.
CRED — Enterprise B2B Sales Intelligence Platform
Architected and delivered the front-end platform for a B2B sales intelligence system serving enterprise clients across sports, entertainment, and commercial sectors. The platform enables company research, outreach workflows, AI-assisted engagement, and advanced data visualization across web and browser extension surfaces.
Built on a structured monorepo architecture with strict performance budgets, automated quality gates, and scalable GraphQL integration, the system supports high-volume data processing, reliable releases, and rapid feature expansion in a multi-tenant environment.
Built on a structured monorepo architecture with strict performance budgets, automated quality gates, and scalable GraphQL integration, the system supports high-volume data processing, reliable releases, and rapid feature expansion in a multi-tenant environment.
Education
2011 - 2015
Bachelor's Degree in Electronic and Communication Engineering
Namık Kemal University - Tekirdag, Tukey
Certifications
JULY 2026 - PRESENT
Claude Code in Action
Anthropic Education
JULY 2026 - PRESENT
Introduction to subagents
Anthropic Education
JULY 2026 - PRESENT
Introduction to agent skills
Anthropic Education
JULY 2026 - PRESENT
Claude Platform 101
Anthropic Education
JUNE 2026 - PRESENT
Claude Code 101
Anthropic Education
JUNE 2026 - PRESENT
Claude 101
Anthropic Education
DECEMBER 2016 - PRESENT
Microsoft: Programming in JavaScript
Microsoft
DECEMBER 2016 - PRESENT
MCPS: Microsoft Certified Professional
Microsoft
Skills
Libraries/APIs
Node.js, React, RxJS, Preact, Playwright, Apollo Client, Stripe API, Claude API, React Navigation
Tools
Git, GitHub, Webpack, Figma, Nx, Expo, RTK Query, Claude Code, Claude, Amazon Cognito
Languages
JavaScript, TypeScript, GraphQL, HTML, CSS, SQL, C#, Python
Frameworks
Next.js, NestJS, Redux, Angular, React Native, Express.js, Material UI, Jest, Cypress, Tailwind CSS, .NET, AWS Serverless Application Model (SAM)
Paradigms
REST, Serverless Architecture
Platforms
Docker, Firebase, Amazon Web Services (AWS), Replit, AWS Lambda
Storage
PostgreSQL, Redis, MongoDB, MySQL, Amazon DynamoDB, Amazon S3 (AWS S3), Google Cloud
Other
UI Testing, User Interface (UI), User Experience (UX), Front-end, Back-end, Full-stack, Leadership, CI/CD Pipelines, AI Architecture, ECharts, Chrome Extensions, SaaS, AI Automation, Artificial Intelligence (AI), Payment Processing, Web Development, ChatGPT API, Cursor AI, Linear, Apollo, Front-end Development, Front-end Architecture, Back-end Development, APIs, Full-stack Development, Supabase, Software Architecture, API Integration, Anthropic, OpenAI, RAG Systems, LLM Integration, Autonomous AI, AI Agents, LLM Agents, Agentic AI
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