
Damyan Kalev
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About me
Software Engineer, Machine Learning at Exaforce
Education

English Language School "Plovdiv"
-High School Diploma English Language and Literature, General 5.90/6.00
University of Amsterdam
-Master of Science - MS (Cum laude) Artificial IntelligenceMaster thesis: Group equivariant deep learning for 3D blood vessel segmentationCNNs have been quite successful in a wide range of tasks due to a very important property they have: translational equivariance. The master thesis focused on applying results from group theory and representation theory to add to CNNs the property of rotational equivariance. The models were applied for the task of blood vessel segmentation in 3D volumes produced from Cardiac Computed Tomography Angiography. A… Mehr anzeigen Master thesis: Group equivariant deep learning for 3D blood vessel segmentationCNNs have been quite successful in a wide range of tasks due to a very important property they have: translational equivariance. The master thesis focused on applying results from group theory and representation theory to add to CNNs the property of rotational equivariance. The models were applied for the task of blood vessel segmentation in 3D volumes produced from Cardiac Computed Tomography Angiography. A wide range of architectures were investigated, varying the network architecture itself (Vanilla CNNs, U-Net, MobileNet), the rotational groups (from SO(3) to its finite subgroups), the representations used (bandlimited regular representations vs steerable irreps) and the types of non-linearities. Weniger anzeigen

University of Strathclyde
-Bachelor of Science - BS Hons Computer Science First Class Honours• Advanced Programming (Design patterns) • Computer Systems and Architecture (Operating Systems, Performance Tradeoffs)• Logic and Algorithms (Algorithms and Complexity, Lambda Calculus)• Combinatorics (Probability, Combinatorial games)• User and Data Modelling (Databases, HCI)• Computer Security (Cryptography, Access control, Network security)• Information Access and Mining (Information indexing, ranking and retrieval; RNN, capture generation with LSTM and… Mehr anzeigen • Advanced Programming (Design patterns) • Computer Systems and Architecture (Operating Systems, Performance Tradeoffs)• Logic and Algorithms (Algorithms and Complexity, Lambda Calculus)• Combinatorics (Probability, Combinatorial games)• User and Data Modelling (Databases, HCI)• Computer Security (Cryptography, Access control, Network security)• Information Access and Mining (Information indexing, ranking and retrieval; RNN, capture generation with LSTM and GRU)• Software Architecture and Design (Analysis of large-scale software architectures and frameworks)• Business Analysis and Technology• Physical Electronics (Basic Quantum Theory, Semiconductor Physics), • Applications of Mathematics (Graph theory, Number theory, Cryptography) Weniger anzeigen

Nanyang Technological University
-Exchange year Computer Science• Artificial Intelligence• Net Centric Computing• Computer Graphics and Visualization• 3D Modelling and Animation• Advanced Computer Architecture• Advanced Software Engineering• Compiler Techniques• Intelligent Agents• Chinese Language Level 2
Experience

ASA RECRUITMENT
Jan 2017 - Aug 2017Staff Member
University of Strathclyde
Jan 2018 - Jan 2018Full-stack DeveloperDeveloped an Angular web application for the Advanced Forming Research Centre at University of Strathclyde. The app provides guidance for Technology Qualification Processes to be adopted in different jurisdictions and legal scenarios. NodeJS, Express, Angular 6, Bootstrap 4

GMG Contractors Limited
Feb 2019 - Jul 2019Full-stack DeveloperDesigned and developed an application for automating and simplifying the process of operational planning and scheduling. The software system comprises of two main components – a web application for scheduling and assigning different job sites to teams of contractors and a mobile application for contractors to get information about their assignments and input progress and timesheet information. Both parts of the system, use a unified backend, that integrates seamlessly with existing data sources.NodeJS (LoopBack 3), React, React Native, SQL Server Weniger anzeigen

ThinkAnalytics
Jun 2019 - Aug 2019Software Engineer InternDeveloped a real-time monitoring solution using the Elasticstack. Created Logstash pipelines to ingest WildFly access logs and HAProxy logs into an Elasticsearch cluster. Using the indexed data, created Kibana visualizations to display and monitor various KPIs. Finally, wrote Ansible scripts to auto deploy the whole stack.Beats, Logstash, Elasticsearch, Kibana, Grafana, Ansible

ValueMetrics
Sept 2019 - Aug 2022Machine Learning EngineerWorked independently on various projects in all their stages from planning and scoping, to implementation and finally deployment. Currently focusing on building a larger data science team.Computer vision: mainly focusing on a pipeline for predicting the price of real estate properties based on transaction data, roof type classification and ordinal regression of interior and exterior quality of the property based on photos. Worked on various experimental projects such as using contrastive learning with SimCLR to pretrain models.Outlier detection: detecting anomalies in property valuations. Explored various approaches from Isolation Forests and tabular autoencoders to using the uncertainty of Random Forests predicting market value. Adding interpretability to model predictions with LIME and SHAP.NLP: extracting structured data from the descriptions of properties to be sold by utilizing the sentence dependency trees and POS tags. To achieve this, created an extendable framework based on the spaCy matcher API to easily add patterns combining, regular expressions, POS tags and dependency relations and aggregate the results on a document level.(PyTorch, spaCy, NodeJS, VueJS) Weniger anzeigen

Google
Sept 2022 - Feb 2024Software Engineer, Machine Learning
Exaforce
Feb 2024 - nowSoftware Engineer
Licenses & Certifications

Dean's Certificate for Meritorious Standard
University of StrathclydeSept 2015
Dean's Certificate for Meritorious Standard
University of StrathclydeSept 2016
Honors & Awards
- Awarded to Damyan KalevBILHack - Digital Blockchain and Identity Hackathon winner BlockPass Identity Lab Sep 2018
- Awarded to Damyan KalevBest Use of Amazon Web Services award MLH Prime: Europe Regional 2017 Apr 2017
Languages
- buBulgarian
- enEnglish
- geGerman
- chChinese
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