CV

Basics

Name Simeon Manolov
Label Software & ML Engineer
Email s.manolloff@gmail.com
Url https://smanolloff.github.io
Summary Seasoned backend software developer skilled in multiple programming languages. Bringing a strong passion for ML to the table and actively seeking opportunities to apply and further develop my skills in the AI domain.

Work

  • 2025.08 - Present
    ML Engineer
    Big Data for Smart Society Institute (GATE)
    Researching and applying machine learning solutions based on Graph Neural Networks to address practical problems in the smart city domain.
    • Machine Learning
    • Software Engineering
  • 2024.11 - 2025.07
    Senior Software Developer
    Big Data for Smart Society Institute (GATE)
    Leading technical applications of Data Spaces within GATE.
    • Software Engineering
  • 2023.09 - 2024.10
    Personal Development
    Taking time off work to upskill myself on ML through research and hands-on personal projects.
    • Machine Learning
  • 2020.12 - 2023.08
    Senior Software Developer
    SumUp, Sofia
    • Re-designing existing Ruby services, building them from scratch using Elixir and Go; significantly reducing operational costs, improving performance and separating concerns.
    • Reducing downtime by incorporating extensive observability into new and existing applications by leveraging OpenTelemetry, Prometheus, Grafana and Honeycomb
    • Designing and implemented architectural improvements, emphasizing modularity, scalability, performance, reliability, automated testing and event-driven operation
    • Extensively using Kubernetes and GitHub actions for CI/CD
    • Contributing to the Elixir open-source community by implementing OpenTracing clients and AWS signers
    • OpenTracing clients and AWS signers.
  • 2015.10 - 2020.12
    Software Developer
    SumUp, Sofia
    • Developing RESTful backend micro-services in close collaboration with web, mobile and other backend developers to replace the existing monoliths, separating concerns into single-responsibility applications by using Ruby, Node.js, Python, PostgreSQL, Redis, RabbitMQ, Elasticsearch, AWS S3, AWS EC2 and Jenkins CI/CD
    • Gaining experience in the authentication, anti-fraud, ecom, fee, mobile edge, transaction processing, receipts, and reporting domains
    • Contributing to the Ruby open-source community
    • Conducting training for interns
  • 2014.06 - 2015.10
    Junior Software Developer
    SumUp, Sofia
    • Working on a JSON-RPC backend for mobile apps (Ruby, PostgreSQL)
    • Proposing and implementing a coding style guide for improving codebase readability, consistency and maintainability
  • 2013 - 2014
    Software Engineer
    Circles Bulgaria, Sofia
    • Designing and developing a back-office application (Ruby on Rails)
    • Developing custom discovery scripts for HP UCMDB (Python)
  • 2012 - 2013
    Technical Support Engineer
    Circles Bulgaria, Sofia
  • 2011 - 2012
    Technical Support Engineer
    ADRA Bulgaria, Sofia
  • 2010 - 2011
    Telecommunications Engineer
    Telepoint, Sofia

Education

  • 2012 - 2014

    Sofia, Bulgaria

    Master's degree
    Technical University
    Computer Technologies and Applied Programming
  • 2008 - 2010

    Sofia, Bulgaria

    Cisco Academy
    Cisco Certified Network Associate
  • 2008 - 2012

    Sofia, Bulgaria

    Bachelor's degree
    Technical University
    Telecommunications Engineering
  • 2003 - 2008

    Sofia, Bulgaria

    National High School of Mathematics and Natural Sciences
    High School diploma

Skills

Back-end development
Elixir
Go
Python
Ruby
C++
JavaScript
Software architecture design
Machine Learning
RL algorithms with PyTorch
Neural network architectures
RL environment design
Hyperparameter optimization
Scrum
Soft skills
Attention to detail
Teamwork
Communication
Coaching & documentation
Electrical Engineering

Languages

English
Fluent
Bulgarian
Native speaker
German
TELC B2

Projects

  • 2023 - Present
    vcmi-gym
    OpenAI gym environment for VCMI (the HOMM3 open-source engine)
  • 2023 - 2023
    qwop-gym
    OpenAI gym environment for QWOP
  • 2022 - 2022
    ot
    Opentracing support for Elixir applications
  • 2022 - 2022
    tesla-aws-signer
    An elixir library for signing AWS requests
  • 2020.03 - 2020.06
    dom-o-fone
    Device for opening doors remotely
  • 2019 - 2020
    phoenix_params
    A plug for Phoenix apps that validates and transforms HTTP request params.
  • 2017 - 2018
    phoenix_params
    Elixir linter for Sublime Text 3 based on SublimeLinter
  • 2016 - 2016
    mic-mixer
    Device for microphone signal mixing
  • 2015 - 2015
    svg_drawer
    A ruby gem for building table-based SVG layouts
  • 2015 - 2015
    virtus-relations
    A ruby gem that adds relations to Virtus objects
  • 2013 - 2014
    rs2lan
    Device for emergency access to remote devices
  • 2013 - 2013
    mini-mixer
    A pocket mixer for a guitar and line input singals
  • 2011 - 2012
    bass-preamp
    Device for audio signal pre-processing