Christos Hadjichristofi

Software Engineer & PhD Researcher

I am a Software Engineer based in Athens, committed to lifelong learning and building innovative solutions. I tackle complex challenges with creativity and technical expertise, continually striving for improvement and excelling in collaboration.

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Research Profiles

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Previously: old.christoshadjichristofi.com

Experience

Building software across various domains.

0years0monthsof experience

Analysis Consulting LTD

Data Analyst/Architect

07/2025 – 03/2026

Design and implementation of data analysis and backend solutions for energy consumption data in collaboration with a major institutional energy provider.

Data architecture and process optimization
Specification design and documentation
Advanced data analysis and reporting
Exploratory research and insights generation

Data Analyst/Architect

05/2024 – 02/2025

Analysis and standardization of energy data and services for an institutional entity in the energy sector.

UML
Specifications
Data Analysis
Data Architecture

Energy Competence Center

Software Engineer

09/2024 – 12/2024

Enhancement of the ECHOS platform, including the development of new features, integration with external services, and optimization of existing functionalities.

Redesigned how scenarios are generated and filled with timeseries data.
Introduced a queuing system for optimization requests.
Implemented a new feature for automatic optimization runs.

Software Engineer

03/2023 – 10/2023

Implementation of ECHOS (Energy Clean Hybrid Storage Optimization Service) platform, encompassing front-end, back-end development and GAMS model integration.

NodeJS
MongoDB
NextJS
UML
GAMS

Researcher

12/2022 – 02/2023

"CN-HESS" aims to optimize renewable energy storage with a hybrid system of batteries and hydrogen. The study involves a model integrating photovoltaic-wind systems, batteries, and electrolytic hydrogen production for efficient grid contribution.

Coordination
UML
BPMN

Code for Code Learning Solutions LTD.

Content Writer

12/2022 – 07/2023

Authored Python and JavaScript educational exercises of varying difficulty for the Code4Code educational platform.

National Technical University of Athens

Teaching Assistant

10/2022 – Present

Assist in instructing various courses within the School of Electrical and Computer Engineering, providing laboratory support, project guidance, and developing supplementary software tools.

Computer Programming (1st Semester)
Programming Techniques (2nd Semester)
Software Engineering (7th Semester)
Software as a Service (8th Semester)

SmartRue Research Team

Software Engineer

04/2024 – 05/2024

Enhanced and optimized a legacy .NET C# 4.5 MVC application, performing backend improvements, dynamic data fetching, and code cleanup.

C#
.NET
MVC
SQL Server

Software Engineer

04/2022 – 03/2024

Implement a Proof-of-Concept Local Energy Market and a Proof-of-Concept Demand Response System.

Ethereum Blockchain
Solidity
RabbitMQ
NodeJS
Rest API Design and Implementation

Cyprus National Guard

Soldier

07/2016 – 09/2017

Completed my mandatory military service as a soldier in the Cyprus National Guard. Improved my discipline, teamwork spirit and gained the ability to work under pressure.

Projects

Live projects I've built and deployed.

PafosTours

Software Engineer02/2025 – 06/2025

Developed and deployed a tour booking platform for PafosTours with a Next.js frontend, Strapi backend, PostgreSQL database, and Nginx, all containerized with Docker Compose.

Implemented booking management and integrated Stripe for secure online payments.
Set up production infrastructure with SSL, automated backups, and multi-domain routing.
Customized the admin panel for client needs.

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Keravnos Academy Pafos

Software Engineer05/2024 – 06/2024

Development and management of a web platform for a football academy, including data analysis, integration with external services, and backend architecture.

Created a managerial dashboard for tracking student payments and sending notifications.
Automated email notifications using AWS SES.
Implemented bulk user management and data export/import functionalities.
Designed and standardized data models and architecture.

View Project

Research

Academic publications and research contributions.

Conference2025-10-22

Enhancing API documentation by inter-endpoint dependency graphs

Panagiotis Papadeas, Dimitrios Gerokonstantis, Christos Hadjichristofi, Vassilios Vescoukis

20th Conference on Computer Science and Intelligence Systems (FedCSIS 2025)

DOI: 10.15439/2025F8035

Read Paper Resources

Journal2024-11-01

Using Time-Series Databases for Energy Data Infrastructures

Christos Hadjichristofi, Spyridon Diochnos, Kyriakos Andresakis, Vassilios Vescoukis

Energies

DOI: 10.3390/en17215478

Read Paper

Skills

Constant Learner | Tech Enthusiast | Team Player | Problem Solver

What I Do

💻 Full Stack Development exploring various tech stacks
🔍 Proficient in Software Testing, Debugging, and robust solutions
🔧 Proficient in using Source Control for effective project management
📚 Quick learner with a solid understanding of Programming Languages
🚀 Passionate about technology trends and staying up-to-date
🤝 Effective team player with strong organizational skills

Core Development Stack

The fundamental technologies I utilize for software development, subject to change based on project requirements.

Language

TypeScript

Language

Python

Frontend

React/Next.js

Backend

Node.js

Database

PostgreSQL

DevOps

Docker

Technologies & Tools

PythonJavaScriptJavaNodeJSHTML-5CSS3ReactJSAngularnpmEthereumsql-databasenosql-databasedockergitLinux

Education

Academic background and qualifications.

National Technical University of Athens

PhD in Software Engineering

October 2022 - Present

Software Engineering, Architecture and Design

MEng. Electrical and Computer Engineering

September 2017 - June 2022

GPA: 8.5/10. Specialization in Computer Science.

Some of the courses I attended were Software Engineering, Software-as-a-Service, Compilers, Programming Languages, Databases, Artificial Intelligence, Machine Learning, Operating Systems.
Thesis: Implementation of Blockchain Application for managing University grades.