Anastasios Theodosiou — Frontend Engineer

🚀 Senior Angular Engineer with 8+ years of experience designing and building enterprise-grade web platforms for banking, public sector, and high-traffic applications. I specialize in Angular (v7–19), TypeScript, scalable frontend architecture, design systems, state management, and performance optimization. Across my career, I’ve led complex frontend initiatives—from greenfield applications to large system redesigns—working closely with cross-functional teams to deliver fast, reliable, and maintainable products at scale. What I’m known for Designing modular, scalable frontend architectures used by multiple teams Building reusable component libraries & design systems that accelerate development Delivering high-performance Angular applications (Core Web Vitals improvements, code-splitting, bundle optimization) Integrating robust REST/GraphQL APIs and collaborating effectively with backend teams Bringing structure, clarity, and best practices to fast-moving engineering environments ✨ Recent highlights Led the frontend architecture for a next-generation corporate e-banking platform, improving development velocity and UI consistency across 5+ teams Designed a plugin-based Angular architecture enabling flexible feature rollout and reduced technical debt Improved performance across key flows through caching, lazy loading, and smarter change detection I also explore AI-augmented development, modern Angular patterns, and productivity tooling. I enjoy mentoring, sharing knowledge, and contributing to better engineering culture.

Stackforce AI infers this person is a Fintech and Healthcare-focused Frontend Engineer with expertise in Angular and scalable architectures.

Location: Thessaloniki, Greece

Experience: 8 yrs 2 mos

Skills

Angular
Frontend Architecture
Frontend Development
Full-stack Development
Windows Development

Career Highlights

Designed scalable frontend architectures for multiple teams.
Delivered high-performance Angular applications with optimizations.
Mentored engineers and improved engineering culture.

Work Experience

ARHS Group

Senior Frontend Engineer (Angular) (3 yrs 9 mos)

Netcompany-Intrasoft

Frontend Engineer (1 yr 11 mos)

OR-CO Organization And Computing

Frontend Developer (2 yrs 6 mos)

Freelance, self-employed

Front-end Developer (1 yr 9 mos)

ITBox

Windows Developer (5 mos)

Education

MSc at Aristotle University of Thessaloniki (AUTH)

BSc on Computer Science and Telecommunications at Technological Educational Institute of Thessaly. / TEI of Thessaly

at 4th high school of Alexandroupolis

Anastasios Theodosiou

Frontend Engineer

Thessaloniki, Greece8 yrs 2 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Designed scalable frontend architectures for multiple teams.
Delivered high-performance Angular applications with optimizations.
Mentored engineers and improved engineering culture.

Stackforce AI infers this person is a Fintech and Healthcare-focused Frontend Engineer with expertise in Angular and scalable architectures.

Contact

Skills

Core Skills

AngularFrontend ArchitectureFrontend DevelopmentFull-stack DevelopmentWindows Development

Other Skills

Angular 18–19TypeScriptSignalsStandalone ComponentsNgRxRxJSGraphQLNestJSDockerViteJestCypressAzure DevOpsAngular 11–14REST APIs

About

Experience

Arhs group

Senior Frontend Engineer (Angular)

Jun 2022 – Present · 3 yrs 9 mos · Thessaloniki, Central Macedonia, Greece · Remote

Leading the redesign and redevelopment of a large-scale corporate web banking platform using Angular 18–19 and modern frontend engineering practices.
Key Achievements (βάλε τα πρώτα!)
Designed the frontend architecture for the new digital banking platform, improving delivery speed and reducing UI defects across 5 cross-functional teams
Built a reusable component library + design system, enabling consistent UX and dramatically reducing duplicated code
Delivered major performance optimizations (bundle size reduction, Core Web Vitals improvements, faster initial load)
Introduced Angular signals, standalone components, defer views, and modern patterns to improve maintainability
Implemented plugin-based feature architecture, enabling modular deployments and easier extension of core banking flows
Responsibilities
Translating business & UX requirements into scalable frontend solutions
Collaborating with architects, backend teams, and product managers
Ensuring code quality through reviews, testing, and DevOps workflows
Integrating and validating REST APIs (Java Spring Boot, .NET)
Mentoring engineers and defining coding standards for the team
Tech stack
Angular 18–19, TypeScript, Signals, Standalone Components, NgRx (SignalStore), RxJS, GraphQL, NestJS, Docker, Vite, Jest, Cypress, Azure DevOps

Angular 18–19TypeScriptSignalsStandalone ComponentsNgRxRxJS+9

Netcompany-intrasoft

Frontend Engineer

Jul 2020 – Jun 2022 · 1 yr 11 mos · Thessaloniki, Central Macedonia, Greece · Hybrid

Impact & Achievements
Developed mission-critical customs & risk-analysis systems used by government agencies across Europe
Optimized complex data-driven Angular applications for reliability and performance
Delivered secure, scalable features in compliance with EU regulatory frameworks
Key Projects
CRMS2: Built UI modules for risk centers & border control operations
CSMIS: Improved efficiency and data workflows across customs systems
ICS2: Contributed to a major platform improving cargo and shipment data analysis
Tech
Angular 11–14, RxJS, REST APIs, TypeScript, CI/CD, Docker

Angular 11–14RxJSREST APIsTypeScriptCI/CDDocker+2

Or-co organization and computing

Frontend Developer

Jan 2018 – Jul 2020 · 2 yrs 6 mos · Thessaloniki

As a Frontend Developer, I contributed to the modernization of web applications used across public hospitals in Greece, helping transition legacy PowerBuilder systems into modern Angular-based solutions. I delivered features that improved workflows, reduced operational friction, and enhanced the reliability of healthcare informatics platforms.
Key Achievements
Rebuilt critical hospital workflow modules using Angular 7+, significantly improving usability and performance for medical personnel
Developed modular & reusable components adopted across multiple applications, reducing development time and ensuring UX consistency
Designed and delivered PWA and WebSocket-enabled features that enhanced responsiveness and real-time communication in hospital systems
Collaborated closely with JavaEE backend teams to implement robust, scalable integrations for high-availability environments
Responsibilities
Led a frontend team of 3 developers and coordinated with 3 full-stack engineers, managing tasks, priorities, and sprint goals
Set up the Angular development environment and tooling from scratch, optimizing developer experience and build workflows
Evaluated and selected libraries (Material2, PrimeNG, FlexLayout) to improve development velocity and maintainability
Ensured code quality through best practices, reusable architecture, and consistent UI guidelines
Tech & Tools
Angular 7+, TypeScript, Material2, PrimeNG, FlexLayout, HTML5, CSS3, Karma, Jasmine, WebSockets, PWA, GitScrum, JavaEE integration

Angular 7+TypeScriptMaterial2PrimeNGFlexLayoutHTML5+6

Freelance, self-employed

Front-end Developer

Jun 2016 – Mar 2018 · 1 yr 9 mos · Alexandroúpolis, Eastern Macedonia and Thrace, Greece

Developed custom web applications using Angular, Node.js, Express, and MongoDB, delivering tailored solutions for clients.
Designed responsive and dynamic UIs with HTML, CSS, and JavaScript, ensuring optimal user experience across devices.
Built and maintained full-stack applications, handling both frontend and backend development.
Created and customized WordPress websites on demand, implementing themes, plugins, and custom functionalities as per client needs.
Worked closely with clients to gather requirements, propose solutions, and deliver high-quality web experiences.

AngularNode.jsExpressMongoDBHTMLCSS+3

Itbox

Windows Developer

Feb 2014 – Jul 2014 · 5 mos · Larisa, Greece

Developed desktop applications using C# and .NET, enhancing functionality and usability for internal projects.
Built and maintained Windows Phone applications, optimizing performance and user experience.
Designed and managed WordPress websites, implementing custom themes, plugins, and content updates.

C#.NETWordPressWindows Development