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Sahar Darafsh

@sahardarafsh

Full Stack Developer at Convien GmbH, where I reduced critical and high-impact code issues to zero and raised test coverage above 95%.

Germany

Message

At Convien GmbH, I build and maintain full stack features for a meeting place optimizer built on a large Java codebase. I introduced SonarQube and lead its code quality gate; the project went from more than 1,000 critical and high-impact issues to zero.

I joined with no unit test coverage and raised it to 95–98%. I also own the validation pipelines and the testing process behind project standards.

At TESTIFI GmbH, I shipped an Android app in Flutter before moving to backend Java to build QualityOps, a tool for evaluating and visualizing software quality metrics. I wrote its core features with Spring, MySQL, and Gradle using TDD, and reworked algorithms for speed.

Alongside my software work, I taught and mentored more than 100 students in deep learning at Maktabkhooneh and co-developed the curriculum. I also reviewed medical image analysis projects for Abadan University of Medical Science, giving algorithmic feedback that improved model accuracy.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Convien GmbH

Mar 2025 - Present (1 year 6 months)

Build and maintain full stack features for a meeting place optimizer with a large Java codebase, ensuring high availability and sub-second response times. Introduced SonarQube and led the code quality gate, reducing critical and high impact issues from over 1000 to zero and raising unit test coverage from zero to 95-98%.

Java Apache Wicket Apache Tomcat MySQL SonarQube Test Driven Development CI CD Agile

Software Developer

TESTIFI GmbH

Mar 2022 - Mar 2025 (3 years)

Shipped an Android app in Flutter, then moved to backend Java to build QualityOps, a tool for evaluating and visualizing software quality metrics. Wrote core features in Java with Spring, MySQL, and Gradle using TDD, and worked on CAST, a cross team test automation project.

Java Spring Framework MySQL Gradle Test Driven Development Flutter Android

Deep Learning Mentor and Teaching Assistant

Maktabkhooneh

Jun 2021 - Mar 2023 (1 year 9 months)

Taught and mentored 100+ students in reinforcement learning, CNNs, neural networks, and deep learning. Co-developed the curriculum, adding real world applications to the theory.

Deep Learning Reinforcement Learning CNN Neural Networks Teaching Mentorship

AI/ML Project Reviewer

Abadan University of Medical Science

Jun 2020 - Mar 2022 (1 year 9 months)

Reviewed deep learning projects in medical image analysis, focusing on model architecture choices, training procedures, and evaluation metrics. Provided algorithmic feedback that improved model accuracy.

Deep Learning Medical Imaging Analytics ML Model Architectures Training Procedures Evaluation Metrics

Education

Degrees, certifications, and relevant coursework

University of Alberta

Certificate, Object-Oriented Design

Completed a certificate in Object-Oriented Design in November 2024.

University of Alberta

Certificate, Design Patterns

Completed a certificate in Design Patterns in November 2024.

Atlassian University

Certificate, Agile with Atlassian Jira

Completed a certificate in Agile with Atlassian Jira in November 2022.

Atlassian University

Certificate, Version Control with Git

Completed a certificate in Version Control with Git in November 2022.

Amirkabir University of Technology

Master of Science, Artificial Intelligence and Robotics

2017 - 2020

MSc in Artificial Intelligence and Robotics. Thesis on designing an embedded system for activity recognition using a surveillance camera, with a self-collected dataset.