Recommended expert

Samuel (Alemayohu) Brhane

Senior Software Engineer

Samuel Brhane
Arcavacata, Italy

Experience

Nov 2024 - Present
1 year 3 months
Ljubljana, Slovenia

Senior Software Engineer

Kemijski inštitut

  • Led a full back-end migration from Java to Django for a digital research assistant platform, redesigning core business logic and optimizing key workflows such as inventory management, resulting in a 70% reduction in response time.
  • Completed a database migration of 100+ tables from MariaDB to PostgreSQL, improving data integrity, query performance, and system scalability.
  • Designed and deployed machine learning models and inference pipelines using Python and AWS, enhancing the accuracy and speed of experimental data analysis across research projects.
  • Managed cloud architecture on AWS (EC2, S3, Lambda, RDS, SageMaker) to support scalable web applications, CI/CD pipelines, and production ML model serving with high reliability.
  • Built Python automation scripts and specialized laboratory desktop applications (ECSA Tafel App, Potentiostat control GUI), reducing manual data handling and streamlining laboratory workflows.
Jun 2024 - Aug 2024
3 months
Plymouth, United Kingdom

Visiting Researcher

University of Plymouth

  • Conducted research and developed LSTM-based time-series models for wildfire prediction in California using the “2.3 Million US Wildfires (1992–2020)” dataset and Google Trends search volume as a proxy for public attention.
  • Combined traditional climate and environmental drivers with state-level population data and real-time Google Trends metrics to model the relationship between collective public awareness and wildfire occurrence.
  • Processed and analyzed large-scale, multi-source historical wildfire dataset, climate variables, population statistics, and Google Trends using Python, Pandas, NumPy, and ETL workflows to evaluate whether public attention signals improved predictive accuracy.
Dec 2023 - Oct 2024
11 months
Rome, Italy

Senior Web Developer

Montini Web Agency

  • Conceived and delivered full-stack web applications for multiple client e-commerce platforms using React/Next.js with Django/Node.js, creating scalable architectures and RESTful APIs for multilingual stores with Stripe and PayPal integrations.
  • Improved technical SEO using server-side rendering, structured data markup, and performance optimization techniques, increasing Core Web Vitals scores by over 30%.
  • Produced responsive user interfaces with cross-browser compatibility and component-based architecture in React/Next.js, and combined third-party APIs for booking systems and content management.
  • Refined PostgreSQL database queries and introduced caching strategies to reduce page load times, overall site performance and user experience.
Feb 2023 - Aug 2023
7 months
Addis Ababa, Ethiopia

Software Developer

Amref Health Africa

  • Created a scalable e-learning platform using Django and Svelte, serving over 100,000 users in rural communities with critical health education on disease transmission and prevention.
  • Designed a comprehensive role-based dashboard for administrators to manage users and track educational progress across all 11 regions, zones, and woredas.
  • Launched an Interactive Voice Response (IVR) system to deliver free, offline mobile learning via text and voice calls, enabling access for populations with limited internet connectivity.
  • Introduced core platform features including course management, progress tracking, examinations, and certificate generation, helping thousands of learners complete training and receive certificates nationwide.
May 2019 - Feb 2023
3 years 10 months
Addis Ababa, Ethiopia

Full Stack Developer

Mereb Technologies

  • Started as an intern and progressed to a full stack developer role, gaining hands-on experience across the full software development lifecycle in an Agile environment.
  • Produced full-stack features for a decentralized computing platform, introducing task orchestration and GraphQL APIs with Python and React, and deploying services in Docker containers with monitoring via Grafana.
  • Developed dynamic web applications for an educational platform, designing responsive user interfaces in React and back-end services in Node.js connected to relational databases.
  • Established CI/CD pipelines using Docker and cloud services to automate testing, integration, and deployment, improving reliability and frequency.

Summary

Senior Software Engineer with 6+ years of experience in cloud architecture, machine learning, and scalable system design. Proficient in developing high-performance web applications, data-intensive AI systems, and automating complex workflows. Demonstrated ability to lead projects from initial concept to successful production deployment.

Skills

  • Programming Languages: Python, Javascript/typescript, R, Go, C#, Html/css

  • Software Engineering & Architecture: System Design, Distributed Systems, Microservices, Api Design, Scalable Architecture, Ci/cd Pipelines, Test Automation (Unit & Integration Testing), Code Quality & Code Reviews

  • Machine Learning & Ai: Pytorch, Tensorflow, Keras, Scikit-learn, Mlflow, Opencv, Pandas, Numpy

  • Mlops & Data Engineering: Model Training, Model Deployment, Ml Inference Pipelines, Model Serving, Model Versioning, Etl Pipelines, Data Cleaning, Time-series Analysis, Sql Optimization

  • Data Visualization & Analysis: Matplotlib, Seaborn, Plotly, Power Bi, Tableau, Jupyter Notebook

  • Web Frameworks: Django, Fastapi, Flask, React.js, Next.js, Svelte, Node.js, Express.js, Tailwindcss

  • Databases: Postgresql, Mysql, Mariadb, Sql Server, Mongodb

  • Cloud & Devops: Aws Services, Docker, Kubernetes, Github Actions, Git, Linux, Apache Kafka, Grafana

  • Apis & Services: Restful Apis, Graphql, Websockets

  • Collaboration & Delivery: Cross-functional Collaboration, Mentoring, Technical Documentation, Agile/scrum

Languages

Amharic
Native
Tigrinya
Native
English
Advanced

Education

Sep 2023 - Nov 2025

University of Ljubljana

Master of Science · Environmental Civil Engineering · Ljubljana, Slovenia

Sep 2023 - Nov 2025

University of Calabria

Master of Science · Environmental and Territorial Safety Engineering · Rende, Italy

Sep 2014 - Dec 2020

Addis Ababa University

Bachelor of Science · Civil Engineering · Addis Ababa, Ethiopia

Certifications & licenses

AWS Certified AI Practitioner

AWS Certified Solution Architect – Associate

University of Michigan - Advanced Coursework Intermediate PostgreSQL

Web Application Technologies and Django

Harvard University - CS50P: Programming with Python

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Similar Freelancers

Discover other experts with similar qualifications and experience

Andrea Goldoni
Andrea Goldoni

Senior Software Developer and Consultant

View Profile
David Mori
David Mori

Senior Full-Stack Developer

View Profile
Ian Giachero
Ian Giachero

Senior Full Stack Engineer

View Profile
Samir Brković
Samir Brković

Solution Architect / Senior Software Engineer

View Profile
Christian Schulz
Christian Schulz

Data-Scientist/AI Engineer

View Profile
Marcel Meyer
Marcel Meyer

Cloud-Architect, Senior Solution Architect, Senior Software-Engineer

View Profile
Martin Djonov
Martin Djonov

Software Consultant

View Profile
Serge Kalinin
Serge Kalinin

MLOps (machine learning operations)

View Profile
Vladimir Novkov
Vladimir Novkov

Freelance Data Scientist

View Profile
Arkel Lahi
Arkel Lahi

Senior Full Stack Engineer

View Profile
Anton Klonov
Anton Klonov

Head of Technical Overall Integration NSC / Hadoop Cloud Development

View Profile
Klemen Živkovič
Klemen Živkovič

AI Engineer

View Profile
Adam Cemerys
Adam Cemerys

Senior Software Engineer

View Profile
Arne Hendricks
Arne Hendricks

Embedded Fullstack Developer

View Profile
Guta Tufa
Guta Tufa

An Intelligent Privacy-Preserving Intrusion Detection System for IoT Networks Using Deep Learning and Federated Learning

View Profile
Kiriakos Krastillis
Kiriakos Krastillis

Tech Lead: API Experience Platform

View Profile
Hüseyin Korkut
Hüseyin Korkut

Senior Full-Stack Engineer

View Profile
Maksim Šetić
Maksim Šetić

Senior Full Stack Developer

View Profile
Thomas Hoefkens
Thomas Hoefkens

Senior MLOps, DevOps Engineer

View Profile
Benedek Galácz
Benedek Galácz

CTO/CISO

View Profile
Shamaila Mahmood
Shamaila Mahmood

Senior Software Architect

View Profile
Stephan Fröde
Stephan Fröde

NLP/LLM Chatbot

View Profile
Mario Labate
Mario Labate

Fractional CTO

View Profile
Yannick Schuchmann
Yannick Schuchmann

Freelance IT Consultant/Advisor

View Profile
Matthias Isler
Matthias Isler

Fractional CTO (Principal Engineer / Technical Architect)

View Profile
Michael Fecher
Michael Fecher

Freelancer, Solution Architect

View Profile
Jürgen Fey
Jürgen Fey

AR/VR/XR Architect

View Profile
Luca Guelfi
Luca Guelfi

Project Manager

View Profile
Luka Šaravanja
Luka Šaravanja

Software Engineer

View Profile
Marijn Scholtens
Marijn Scholtens

Senior Software Engineer

View Profile