Nikoleta Margariti

Freelance web developer in Larissa, GreeceI’m Nikoleta Margariti

Freelance web developer in Larissa, Greece. I design and build fast, modern websites and web applications, with more than 14 years of experience in software engineering.

See my work Get in touch

My projects

A selection of what I have built over the years, from websites and web apps to games.

Selected projects

  1. 01

    Helvia.ai · 2021 – Present

    Helvia Console

    The platform organisations use to build, manage and monitor AI chatbots and agents. I lead its front end and I’m the engineering team’s Scrum Master.

    • React
    • Redux Toolkit
    • TypeScript
    • Ant Design
    Read the case study: Helvia Console
  2. 02

    Personal project · Ongoing

    NDE Archive

    A searchable archive of near-death experiences, with statistics, a blog and anonymous submissions. My own project, built end to end.

    • React
    • Redux Toolkit
    • Ant Design
    • Material UI
    Read the case study: NDE Archive
  3. 03

    Encryptique · 2012 – 2015

    Tulpa

    A surreal puzzle-platformer about a girl and her soulmate, first published on Steam by Rising Star Games. Game development, design and illustration.

    • Unity3D
    • C#
    • Steamworks
    • Blender
    Read the case study: Tulpa

More projects

Websites, web apps and a serious game.

  • Mousiko Kafeneio · 2026

    Mousiko Kafeneio

    A bilingual website for a café-bar in Athens, designed and hand-coded from scratch, with local SEO that helps new visitors find it.

  • SB Technologies · 2018 – 2021

    Dr. Button

    A Greek-French telehealth platform that five Greek regions offered to citizens for free during the pandemic. Front end, UI design and illustration.

  • Socy Inc. · 2016 – 2018

    Intrideo

    A hiring platform where job-seekers introduce themselves with 20-second videos. I built the whole stack, starting as its only developer.

Branding & design

Brand identities and interfaces for start-up ideas that are no longer running.

  • 000Kicks · 2024

    000Kicks

    Brand identity for a London start-up selling limited-edition designer sneakers.

  • 2018 – 2020

    Rave Atlas

    Branding, interface design and front end for a crowd-sourced map of everything rave.

  • 2019

    Artivistic

    Branding, design and a landing page for a network that helps emerging artists find work.

Earlier work

Apps, admin panels and games from my first years as a developer, newest first.

  1. 2018 – 2019Regional Council of ThessalyEvents admin panel with email and SMS notifications
  2. 2018Kamedis CRMCustom CRM for Kamedis Institut, a training institute for health professionals
  3. 2017Intercargo Admin PanelAdmin panel and migration to a new database
  4. 2015 – 2016GeoAppUndergraduate dissertation on locating Greek street addresses
  5. 2015TextboxScheduling for emails, SMS and push notifications
  6. 2012 – 2015Guideme.grWindows Phone app for events, pharmacies and fuel prices
  7. 2011 – 2012Escape from HeavenAward-winning Windows Phone platformer

About me

I’m a web developer and designer from Larissa, Greece. Over the past 14 years I’ve built software of every kind: a platform for AI agents, a telehealth service that five Greek regions offered to citizens during the pandemic, a video hiring platform, admin panels, and a puzzle game on Steam.

Today I’m a Senior Software Engineer and Scrum Master at Helvia.ai. I lead front-end work on the Helvia Console, look after pulse meetings and time off for half of the team, and use prompt engineering every day to build AI features that are reliable and light on tokens.

I work across the whole JavaScript world, from plain HTML, CSS and JavaScript to React apps and WordPress sites, and I care about clean design, fast pages and websites that people can actually find on Google.

Let’s work together My CV on LinkedIn
Nikoleta Margariti, web developer in Larissa
Location
Larissa, Greece
Languages
Greek, English, Spanish

Skills & tools

Websites & front end

  • JavaScript (ES6+)
  • TypeScript
  • HTML5
  • CSS3
  • Sass & Less
  • React
  • Redux Toolkit
  • WordPress & Elementor
  • Ant Design
  • Material UI
  • i18next

AI engineering

  • Prompt engineering
  • Context engineering
  • LLM features & AI agents
  • Token & cost optimisation
  • AI-assisted development

SEO & performance

  • Technical SEO
  • Schema.org structured data
  • Local SEO
  • Core Web Vitals
  • Google Search Console

Back end & data

  • C# & .NET Core
  • REST APIs
  • MySQL

Quality & teamwork

  • Git
  • Docker
  • Cypress
  • Playwright
  • Agile & Scrum
  • Scrum Master (SMC)
  • People management

Design & games

  • UI/UX design
  • Illustration
  • Figma
  • Sketch
  • Adobe Creative Suite
  • Adobe XD
  • Unity3D
  • Blender

Experience

The companies and the roles behind my work.

  1. 2021 – Present

    Helvia.ai

    Senior Software Engineer & Scrum Master

    Front-end lead for the Helvia Console, the platform organisations use to build and manage AI chatbots and agents. Scrum Master of the engineering team, pulse meetings and time off for half of it, and prompt engineering every day.

  2. 2021 – Present

    Cryptobase.gr

    Full Stack Engineer, self-employed

    I build and run Cryptobase.gr, a Greek news portal about blockchain and crypto with more than 1,000 articles.

  3. 2018 – 2021

    SB Technologies

    Web Developer & Video Game Developer

    Front end and UI design for the Dr. Button telehealth platform. For Kamedis Institut: the front end of Kamedis CRM and Hippocrates, a serious game about heart arrhythmia.

  4. 2016 – 2018

    Intrideo (Socy Inc.)

    Full Stack Developer, remote

    Sole developer of Intrideo, a hiring platform with video introductions, built end to end on .NET Core and Azure. More developers joined the team later.

  5. 2012 – 2019

    ITBox

    Mobile, Front-End & Full Stack Developer

    Projects for this Larissa software company: the Guideme.gr app for Windows Phone, ASP.NET web apps such as Textbox, and admin panels for Intercargo and the Regional Council of Thessaly.

  6. 2012 – 2015

    Encryptique

    Video Game Developer, self-employed

    Development, game design and illustration for Tulpa, a puzzle-platformer published on Steam by Rising Star Games in 2015.

  7. 2009 – 2015

    Bachelor’s Degree

    Computer Science & Telecommunications

    B.Sc. at the Technological Educational Institute of Thessaly, now part of the University of Thessaly. My dissertation was GeoApp, and I gave presentations on illustration and game development.

Certifications, talks & recognition

  • Scrum Master Certified (SMC), Scrum Alliance, 2020
  • Winner of the Windows Phone App Contest by Microsoft at TEI of Thessaly, 2012, with Escape from Heaven
  • Speaker on game development at the Larissa Developers Meetup, 2018
  • Presentations on illustration and game development at TEI of Thessaly
  • Greek translation volunteer for the openSUSE project, 2010 – 2012

Get in touch

Planning a new website, or want more from the one you already have? Tell me about your business and what you need and I will get back to you.

I’ll only use your details to reply to your message.