Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm Halil Teyfik Dolmaci, a Senior Full-Stack Engineer with 10+ years of experience architecting scalable, cloud-native applications and leading high-performance development teams. I specialize in building event-driven microservices using React, Node.js, Kubernetes, and Kafka, and I have a proven track record of optimizing performance and scaling platforms for e-commerce and real-time workloads. I thrive in cross-functional environments, mentor engineers, and implement modern DevOps practices to reduce costs and improve reliability. My work spans from high-traffic web apps to distributed data processing, with a focus on maintainable code, thoughtful architecture, and measurable impact.…I'm Halil Teyfik Dolmaci, a Senior Full-Stack Engineer with 10+ years of experience architecting scalable, cloud-native applications and leading high-performance development teams. I specialize in building event-driven microservices using React, Node.js, Kubernetes, and Kafka, and I have a proven track record of optimizing performance and scaling platforms for e-commerce and real-time workloads. I thrive in cross-functional environments, mentor engineers, and implement modern DevOps practices to reduce costs and improve reliability. My work spans from high-traffic web apps to distributed data processing, with a focus on maintainable code, thoughtful architecture, and measurable impact.

Halil Teyfik Dolmaci

Full Stack Developer, Back-End Developer, Front-End Developer





I'm Halil Teyfik Dolmaci, a Senior Full-Stack Engineer with 10+ years of experience architecting scalable, cloud-native applications and leading high-performance development teams. I specialize in building event-driven microservices using React, Node.js, Kubernetes, and Kafka, and I have a proven track record of optimizing performance and scaling platforms for e-commerce and real-time workloads. I thrive in cross-functional environments, mentor engineers, and implement modern DevOps practices to reduce costs and improve reliability. My work spans from high-traffic web apps to distributed data processing, with a focus on maintainable code, thoughtful architecture, and measurable impact.…I'm Halil Teyfik Dolmaci, a Senior Full-Stack Engineer with 10+ years of experience architecting scalable, cloud-native applications and leading high-performance development teams. I specialize in building event-driven microservices using React, Node.js, Kubernetes, and Kafka, and I have a proven track record of optimizing performance and scaling platforms for e-commerce and real-time workloads. I thrive in cross-functional environments, mentor engineers, and implement modern DevOps practices to reduce costs and improve reliability. My work spans from high-traffic web apps to distributed data processing, with a focus on maintainable code, thoughtful architecture, and measurable impact.

Available to hire

I’m Halil Teyfik Dolmaci, a Senior Full-Stack Engineer with 10+ years of experience architecting scalable, cloud-native applications and leading high-performance development teams. I specialize in building event-driven microservices using React, Node.js, Kubernetes, and Kafka, and I have a proven track record of optimizing performance and scaling platforms for e-commerce and real-time workloads.

I thrive in cross-functional environments, mentor engineers, and implement modern DevOps practices to reduce costs and improve reliability. My work spans from high-traffic web apps to distributed data processing, with a focus on maintainable code, thoughtful architecture, and measurable impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Turkish

Fluent

English

Advanced

Work Experience

Senior Software Engineer at User Experience Center

September 1, 2024 - Present

Developed full-stack applications for e-commerce (pazmanya.com) and rewards platforms (cashygo.com) using Next.js, shadcn/ui, and OpenAPI code generation with React Query. Optimized performance to 90+ Lighthouse scores via API layer improvements, S3/MinIO asset migration, and image processing acceleration. Architected event-driven backend for pair.center dating app processing Discord presence data through Kafka; built high-performance data ingestion pipelines in Node.js (Bun) with CSV serialization and 50K+ PostgreSQL batch inserts. Designed a logarithmic scoring algorithm in ClickHouse connected to PostgreSQL via FDW. Implemented Redis-based deduplication and advanced PostgreSQL indexing. Created isolated Docker Compose development environments with Traefik reverse proxy and TLS. Built CI/CD pipelines with GitHub Actions for containerized builds and Rancher deployments. Mentored backend teams on performance optimization and developer workflow.

Senior Software Engineer at Osoci

August 1, 2023 - September 1, 2024

Maintained and enhanced Alve real-time video chat platform; migrated from Janus Gateway to Jitsi on Kubernetes, enabling auto-scaling and multi-cloud availability (AWS, GCP, Hetzner). Refactored MongoDB aggregations with custom type-safe lookup builders, achieving 10–20x query performance improvements on 500K user collections. Replaced regex-based username search with indexed n-grams. Built custom Prosody plugins for enhanced stream monitoring and observability. Developed Angular admin panel with a micro-frontend architecture and Jitsi Meet SDK integration.

Senior Software Engineer at Proxify

January 1, 2023 - Present

Qualified for Proxify senior engineer talent network; contributed as a senior full-stack developer and architecture consultant across client engagements.

Senior Full-stack Developer at Creatopy

March 1, 2022 - August 1, 2023

Developed features for a digital advertising platform generating multi-platform campaign outputs; implemented template list view with pixel-perfect Figma-driven UI; optimized Windows development environment with WSL2 and improved developer onboarding. Identified and resolved performance bottlenecks during platform optimization.

Senior Frontend Developer at La3eb

November 1, 2021 - March 1, 2022

Refactored checkout, delivery, and authentication modules for an international e-commerce platform. Implemented in-memory caching for React hooks and components, reducing CPU usage by 10% and improving load times by 5–10%. Modernized React components using ResizeObserver and efficient hooks; built a reusable component library with JSDoc documentation.

Lead Full-stack Developer at KAÇPARA Inc

December 1, 2020 - November 1, 2021

Led a 5-person development team as technical mentor, coordinating cross-department collaboration. Designed and built a renovation cost calculation platform from scratch using Next.js with a wizard-based UI. Implemented a configurable inflation-rate factor system requiring 10% price adjustments. Built backend infrastructure with NestJS and TypeORM, including authentication and subscription management. Deployed on DigitalOcean Apps with established CI/CD pipelines.

Senior Full-stack Developer at Orenda Software

December 1, 2018 - December 1, 2020

Architected frontend for a cryptocurrency exchange platform serving 1,000+ daily active users. Built a custom WebSocket gateway with REST API for real-time data publishing and subscription management. Mentored backend team on migrating critical real-time features from PHP to Node.js and guided architectural decisions for high-frequency trading requirements.

Senior Full-stack Developer at Talha IT

July 1, 2017 - December 1, 2018

Built a real-time auction platform with pay-per-bid model; optimized transaction processing using MySQL stored procedures; developed real-time chat with AngularJS, Node.js, MongoDB, and WebSockets. Implemented a hybrid backend architecture combining Node.js and PHP with MySQL for performance across components.

Medior Full-stack Developer at GD Holding Inc

June 1, 2016 - May 1, 2017

Integrated Parasut billing API into Symfony-based CRM for voice management; built a drag-and-drop in-voice templating system enabling accurate digital mapping of invoice templates with proper printing alignment.

Junior Full-stack Developer at GD Holding Inc

June 1, 2015 - June 1, 2016

Developed feature modules for a CRM application using JavaScript technologies including AngularJS and Node.js.