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I’m a full-stack software engineer with 5+ years of experience building responsive frontends and scalable, cloud-native backend services. I enjoy designing frontend architectures, optimizing performance, and turning complex product requirements into clean, well-documented systems that are easy to maintain and ship. In my recent work, I’ve helped scale fast-commerce platforms to millions of active products and high order throughput, while also building AI-powered workflows that let non-technical users retrieve product data through natural language. I’ve led migrations and performance improvements (including Angular modernization and state management refinements), strengthened reliability with thorough unit/E2E testing, and improved operational visibility using modern monitoring and alerting across containerized and serverless Kubernetes environments.…I’m a full-stack software engineer with 5+ years of experience building responsive frontends and scalable, cloud-native backend services. I enjoy designing frontend architectures, optimizing performance, and turning complex product requirements into clean, well-documented systems that are easy to maintain and ship. In my recent work, I’ve helped scale fast-commerce platforms to millions of active products and high order throughput, while also building AI-powered workflows that let non-technical users retrieve product data through natural language. I’ve led migrations and performance improvements (including Angular modernization and state management refinements), strengthened reliability with thorough unit/E2E testing, and improved operational visibility using modern monitoring and alerting across containerized and serverless Kubernetes environments.

George Tsiftsis

Full Stack Developer, Software Engineer, Web Developer, +2

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I’m a full-stack software engineer with 5+ years of experience building responsive frontends and scalable, cloud-native backend services. I enjoy designing frontend architectures, optimizing performance, and turning complex product requirements into clean, well-documented systems that are easy to maintain and ship. In my recent work, I’ve helped scale fast-commerce platforms to millions of active products and high order throughput, while also building AI-powered workflows that let non-technical users retrieve product data through natural language. I’ve led migrations and performance improvements (including Angular modernization and state management refinements), strengthened reliability with thorough unit/E2E testing, and improved operational visibility using modern monitoring and alerting across containerized and serverless Kubernetes environments.…I’m a full-stack software engineer with 5+ years of experience building responsive frontends and scalable, cloud-native backend services. I enjoy designing frontend architectures, optimizing performance, and turning complex product requirements into clean, well-documented systems that are easy to maintain and ship. In my recent work, I’ve helped scale fast-commerce platforms to millions of active products and high order throughput, while also building AI-powered workflows that let non-technical users retrieve product data through natural language. I’ve led migrations and performance improvements (including Angular modernization and state management refinements), strengthened reliability with thorough unit/E2E testing, and improved operational visibility using modern monitoring and alerting across containerized and serverless Kubernetes environments.

Available to hire

I’m a full-stack software engineer with 5+ years of experience building responsive frontends and scalable, cloud-native backend services. I enjoy designing frontend architectures, optimizing performance, and turning complex product requirements into clean, well-documented systems that are easy to maintain and ship.

In my recent work, I’ve helped scale fast-commerce platforms to millions of active products and high order throughput, while also building AI-powered workflows that let non-technical users retrieve product data through natural language. I’ve led migrations and performance improvements (including Angular modernization and state management refinements), strengthened reliability with thorough unit/E2E testing, and improved operational visibility using modern monitoring and alerting across containerized and serverless Kubernetes environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Language

English

Fluent

Greek, Modern

Fluent

German

Beginner

Work Experience

Full Stack Software Engineer at Instashop UAE (Delivery Hero Group)

March 1, 2025 - June 1, 2026

Engineered platform administration subsystems for a fast-commerce startup, scaling infrastructure for a catalog of 3M+ active products handling 82k+ daily orders across Dubai and Egypt while integrating third-party APIs. Built an LLM-powered workflow that enables non-technical stakeholders to retrieve product and relational data via natural-language input, including LLM tracing and evals. Optimized database performance and cloud costs by redesigning AKS serverless workflows, using Kibana and Cloud Katch alerting to monitor high-throughput execution and prevent duplicate data processing during retries.

Fullstack Software Engineer at Convert Group

August 1, 2023 - December 1, 2024

Orchestrated migration of an enterprise application to Angular 16 using standalone components, optimizing change detection for significantly improved rendering performance, aligned with enterprise design system and shared component library standards. Implemented state management with XGRS and leveraged server-side rendering/SSR concepts and Angular Signals for fine-grained reactivity. Built comprehensive unit and E2E test suites using Jasmine and Karma with strong coverage to reduce production regressions. Collaborated with the data science team to integrate AI-powered analytics and agentic LLM workflows into the platform, and reduced bundle size via tree-shaking and removal of unused imports, while configuring secure source mapping for faster debugging and error tracking.

Software Developer at Smart Up / Agora Ai

February 1, 2022 - September 1, 2023

Developed a user-friendly Angular web interface for supermarket brands. Consumed data from mobile app services via REST APIs to enable shopping list creation and product search with voice recognition and Angular Material components. Mentored international interns in data scraping and automated product categorization by implementing machine learning models using spaCy; delivered time savings by improving scraping and categorization pipelines built in Python and Django.

Frontend Software Engineer (Freelance Projects) at Freelance

January 1, 2021 - February 1, 2022

Delivered end-to-end frontend solutions for multiple clients, including a redesigned landing page for an investment banking company, an intuitive research data portal for a bio lab, and a custom single-page application for a global sports club. Built responsive, mobile-first experiences aligned with WCAG accessibility standards, focusing on usability, performance, and clean UI implementation.