10+ Years
Expertise in Engineering
Available for roles
Athens, Greece / Senior Full-Stack Engineer (Frontend-Focused)
Frontend Enthusiast building scalable systems.
Krikor Tsakmatzian is a Senior Full-Stack Engineer based in Athens, Greece, specializing in high-performance frontend architecture, microfrontends, and AI-driven product experiences. He translates complex requirements into maintainable, accessible, and performant product realities.
$ online
Portfolio highlights for Krikor Tsakmatzian
Architecture
Scalable Frontend Systems
Modern Tech
React / Next.js / Angular
Ownership
End-to-End Execution
Professional Experience
Architecture, delivery, and ownership across product teams.
A senior engineering path focused on scalable frontend systems, product collaboration, maintainable UI architecture, and measurable delivery outcomes.
Founding Frontend Engineer
hiveoptimum.com
Feb 2020 - Present
Leading frontend architecture for a B2B pharmaceutical analytics platform with Angular 8-20, interactive dashboards, data visualization, and an internal LLM-powered chatbot with citation-backed answers.
AngularAI ChatbotRxJSData VizAngular MaterialExpressJSHeroku
Senior Full-Stack Engineer
reydix.com
Mar 2025 - May 2026
Owning complex frontend features in a scalable Next.js 15 CMS with Clean Architecture, domain-driven TypeScript, shadcn/ui, Storybook, Atomic Design, and Nx in a monorepo environment combined with Fastify/NestJS services.
Next.jsReactClean ArchitectureStorybookAtomic DesignNxNestJSFastify
Senior React Native Engineer
footura.ai
Aug 2024 - Jan 2026
Delivered an AI-powered mobile MVP, hardened Stripe payment environments, and maintained NestJS backend flows for reliable CRUD and product operations.
React NativeExpoStripeNestJS
Senior React Engineer
cratedb.com
Apr 2022 - Jun 2024
Built microfrontends with Webpack Module Federation, improved load times by 40%, and shipped factory operations tooling with React, Apollo, Redux Toolkit, Storybook, Docker, Jenkins, and Azure.
MicrofrontendsGraphQLApolloRedux ToolkitAzureMobXDocker
Senior React Engineer
dialecticanet.com
Mar 2021 - Apr 2022
Contributed to the modernization of a large React application, driving delivery through scalable frontend architecture and workflow automation with a custom Chrome extension.
ReactGraphQLChrome ExtensionReduxRedux SagaWorkflow Automation
Earlier Roles
Signal Maritime
Oct 2019 - Mar 2021
Vessel management, React, TypeScript, C#, REST APIs
Sycada
Aug 2016 - Oct 2019
Angular, TypeScript, PWA, offline-first, C# APIs
Uala
Mar 2015 - Aug 2016
MEAN stack, AngularJS, Node.js, MongoDB, RxJS
Part-Time Freelance Work
Selected Client Projects
Freelance collaborations alongside full-time roles, typically scoped around focused weekly commitments of 10 to 25 hours.
Astronomy automation
Pegasus ASTRO
Senior Front-end DeveloperOct 2024 - Jun 2025
Desktop tooling for automating amateur astronomy and astrophotography workflows.
ElectronNext.jsTypeScriptZustandDaisyUITailwind CSS
Real estate sales / auctions
Senior React DeveloperSep 2022 - Jul 2024
Bank-owned real estate sales and auction platform focused on searchable listings, transactional flows, and maintainable React delivery.
ReactJavaScriptWebpackTailwind CSS
BI tool for maps industry
mapLab.world
React DeveloperApr 2020 - May 2023
Map-based business intelligence product using geolocation-heavy data views, interactive map layers, and spatial analysis workflows.
ReactJavaScriptKepler.glMapboxGeolocation
The Arsenal
Tools selected for clarity, speed, and maintainability.
A pragmatic stack for building fast interfaces, separating data concerns, maintaining shared UI systems, and shipping reliably.
Separation of server and client state with React Query, Redux Toolkit, Apollo, and lightweight stores.
Product-minded architecture across BFF layers, backend services, analytics workflows, and AI interfaces.
Responsive web and mobile app delivery across React, Next.js, Angular, React Native, and Expo.
LLM-powered interfaces with explainability, citation-backed responses, and domain-heavy UX clarity.
Reusable component systems with shadcn/ui, Tailwind, Storybook, Atomic Design, and accessibility standards.
Select Work
Product systems shaped around performance and delivery.
Selected public repositories covering full-stack dashboards, Angular architecture, game logic, microservices, and this portfolio system.
Angular Architecture
An Angular 21 movie SPA using TMDB data, Feature-Sliced Design, NgRx SignalStore, persistence, debounced search, favorites, dialogs, and resilient image loading.
Angular 21NgRx SignalsTMDBRxJSVitest
React Game Logic
A client-side Tic Tac Toe app focused on rule correctness, accessibility, clean separation between domain and UI, two game modes, and testable AI heuristics.
React 19TypeScriptViteVitestRadix UI
Microservices
A Dockerized event management system with a Next.js frontend, NestJS API gateway, NestJS event microservice, TCP transport, search, pagination, and event CRUD flows.
Next.js 15NestJSDockerSWRMicroservices
Portfolio System
This portfolio implementation: a responsive, SEO-minded one-page Next.js app built from a Google Stitch design with Feature-Sliced Design, theme support, and reusable UI primitives.
Next.js 16Tailwind CSSBiomeReact Bits
Contact
Let's build fast, maintainable product experiences.
Available for senior frontend and full-stack roles where architecture, product ownership, and a high-quality user experience matter.
[email protected]Remote-first, based in Athens, Greece
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