Georgios Sfakianakis-Senior Software Engineer
Check rate
Experience
Senior Software Engineer
UBS Bank
- Implementations of a code refactoring framework able to refactor thousands of repositories leveraging Generative AI
- Use Python (Django, Flask, FastAPI), Java and Typescript in Azure Cloud (Data Lake, VMs, AI) and GitLab infrastructure
- Mentoring and pair programming
- Obtained Azure AI-900 and AI-102 certifications
Senior Security Software Engineer - CyberSecurity
Julius Baer Bank
- High level and low-level design of Splunk SOAR playbooks
- Design and implementation of third party integrations using APIs (Python 3.13, FastAPI, PySpark)
- Leverage PySpark for data intensive applications
- Development of Splunk Enterprise apps using React framework (Typescript, Javascript)
- Integration with LLMs to increase the efficiency of the security analyst
- Data and configuration management (ITIL), requirements engineering
- Task allocation, scheduling and planning in an agile environment
- Planning of new releases and monitoring of applications
Senior System Software Engineer
Brusa Electronics
- Design, modelling and realization of next generation DC-DC and AC-DC converters for automotive applications
- Built automated measurement systems in Python (PyMeasure)
- System development and modelling in Python (Pandas, SciPy, NumPy, Matplotlib, FastAPI)
- Design tools development in Python and MATLAB using object oriented programming
- Performed microprocessor code and design reviews in C
- Defined tasks, scheduled and assigned work to team members
Post-Doctoral Researcher
Technical University of Eindhoven
Software Engineer
Horizen
- Developed an open source light wallet named Arizen for Horizen (ZEN) cryptocurrency using Electron framework (Javascript)
- Designed and implemented new features
- Maintained and refactored code
- Provided user support and bug fixes via the GitHub community
PhD Candidate
Technical University of Eindhoven
- This work focused on the design, modelling and implementation of high frequency, high current DC-DC power converters for automotive applications funded by the Marie Sklodowska-Curie Initial Training Network initiative of the European Commission
- Resulted in seven publications in international conferences and a PhD thesis titled 'Modelling and Modulation Schemes for Multi-Level Dual Active Bridge Converters'
- Developed a design platform in MATLAB (object oriented programming), Python and C/C++
- Optimized computationally intensive code in C/C++
- Presented papers in four international conferences
- Coordinated research among a sub-group of four PhD students and supervised three MSc students
Associate Scientist
ABB Corporate Research
- Modeled Si IGBTs
- Implemented test circuits in the high power laboratory
- Developed microprocessor software in C for IGBT driving
Volunteer
National Technical University of Athens
- Participated in the development of a plug-in electric prototype vehicle which competed in the European fuel economy contest (Shell Eco Marathon), ranking 18th with 390 km/kWh
- Programmed microprocessor in C
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Automotive, Education, Banking and Finance, Information Technology, and Energy.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Product Development, Information Technology, Research and Development, and Project Management.
Summary
Mastering Complexity, Delivering Simplicity.
Results-driven engineer seeking to leverage proven expertise in Python (Django, FastAPI, Flask), JavaScript (React), and C/C++ to deliver coding excellence in a software engineering role. Skilled in implementing large-scale code refactoring frameworks powered by Generative Al (Large Language Models LLMS), utilizing Python (Django, Flask, FastAPI) within Azure Cloud environments integrated with GitLab DevOps infrastructure. Experienced in Security Engineering and Generative Al. Interested in the responsible development of Al systems and aligned with the mission of building safe, steerable Al. Problem solver, self-disciplined, and strong communicator with a focus on aligning technical solutions with business strategy and goals.
Skills
Python 3.13 (Django, Flask, Fastapi, Pandas, Celery, Pyspark)
Matlab/Simulink, C, C++
Java, Javascript (Es6, Electron), Typescript
Llms, Chatgpt, Openapi, Langchain
Sql, Css, Html, Orm Libs, Redis
Aws, Gcp & Azure
Debugging Proficiency
Linux, Devops, Ci/Cd, Docker, Git, Gitops, Jenkins, Pulumi, Ansible, Terraform, Kubernetes
Design Skills, Mvc & Mvt Architectures
Project Management (Jira, Kanban, Scrum)
Analytical Thinking & Problem Solving
Organizing, Planning
Fast Learning & Eagerness To Learn
Communication & Collaboration
Mentoring
Self Disciplined - Independent
Results & Goal Oriented
Decision Making
Languages
Education
Technical University of Eindhoven
PhD · Power Electronics · Eindhoven, Netherlands
KTH Royal Institute of Technology
MSc (Exchange) · Electrical and Computer Engineering · Stockholm, Sweden
National Technical University of Athens
MSc & BSc · Electrical and Computer Engineering · Athens, Greece
Certifications & licenses
CISSP
Microsoft AI-102
Microsoft AI-900
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Georgios is based in Zürich, Switzerland.
Georgios speaks the following languages: Greek (Native), English (Advanced), German (Intermediate).
Georgios has at least 15 years of experience. During this time, Georgios has worked in at least 8 different roles and for 7 different companies. The average length of individual experience is 2 years and 10 months. Note that Georgios may not have shared all experience and actually has more experience.
Based on recent experience, Georgios would be well-suited for roles such as: Senior Software Engineer, Senior Security Software Engineer - CyberSecurity, Senior System Software Engineer.
Georgios's most recent position is Senior Software Engineer at UBS Bank.
In recent years, Georgios has worked for UBS Bank, Julius Baer Bank, and Brusa Electronics.
Georgios is most experienced in industries like Automotive, Education, and Banking and Finance. Georgios also has some experience in Information Technology and Energy.
Georgios is most experienced in business areas like Product Development, Information Technology, and Research and Development. Georgios also has some experience in Project Management.
Georgios has recently worked in industries like Banking and Finance and Automotive.
Georgios has recently worked in business areas like Information Technology, Product Development, and Project Management.
Georgios holds a Doctorate in Power Electronics from Technical University of Eindhoven, a Master in Electrical and Computer Engineering from KTH Royal Institute of Technology and a Master in Electrical and Computer Engineering from National Technical University of Athens.
Georgios has 3 certificates. These include: CISSP, Microsoft AI-102, and Microsoft AI-900.
Georgios is immediately available part-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 3 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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