Jordan Jambazov, Developer in Sofia, Bulgaria
Jordan is available for hire
Hire Jordan

Jordan Jambazov

Verified Expert  in Engineering

Software Developer

Sofia, Bulgaria
Toptal Member Since
January 25, 2019

Jordan is a software developer who's experienced in international environments. His work has revolved around programming, entrepreneurship, user experience, and communication. He co-founded two startups in Sofia—one specializing in software development and the other in UX design. Passionate and personable, Jordan is a good communicator and an even better listener.


Open Source University
Continuous Delivery (CD), Continuous Integration (CI), Solidity, Django, Python
IO Era
GitLab, Django, Python
PostgreSQL, Linux, JavaScript, Tornado, Bash, Python




Preferred Environment

Git, Linux, Python 3, Kotlin, Visual Studio Code (VS Code)

The most amazing...

...project I've contributed to is Open Source University, a decentralized blockchain-based platform for the immutable storage of certificates and achievements.

Work Experience

Technology Lead

2017 - PRESENT
Open Source University
  • Co-founded the startup, gathered a software development team and created an infrastructure allowing for quick development iterations.
  • Implemented a distributed blockchain-based platform to help learners claim and advance their academic and professional identities.
  • Coordinated with the development, design, and operations teams to ensure the timely delivery of the product.
  • Ensured the quality of deliverables by implementing test automation and code review processes.
  • Integrated continuous improvement and continuous deployment systems to increase the quality and speed of delivery.
Technologies: Continuous Delivery (CD), Continuous Integration (CI), Solidity, Django, Python

Technology Lead

2015 - PRESENT
IO Era
  • Co-founded the company and bootstrapped it to a profitable boutique software and design studio.
  • Coordinated a remote development team of five team members to deliver 20+ web applications.
  • Implemented a continuous delivery infrastructure, enabling our customer in eCommerce with 30,000+ orders per month to roll-out into production with five minutes build time and zero downtime.
  • Conducted training for 80+ Python developers for a client based in Sofia and improved their skill set.
  • Transformed client requirements into tangible tasks for the development team and cooperated in their execution.
Technologies: GitLab, Django, Python

Senior Python Developer

2013 - 2015
  • Refactored a software updating legacy project and optimized its performance by a factor of 10.
  • Developed a real-time monitoring platform that analyzes the operation of a system critical for the business.
  • Performed Python development training for 15+ interns, 70% of which were later hired by the company.
  • Found and securely reported 4 permission-elevation attack vectors within internal systems containing sensitive data.
  • Participated as a tech speaker in two conferences, helping the company gain traction.
Technologies: PostgreSQL, Linux, JavaScript, Tornado, Bash, Python

Python Developer

2012 - 2013
Antelope Audio
  • Prototyped a mobile control panel for the World's first 384 kHz converter & preamp with Atomic Clocking.
  • Customized Odoo ERP system (formerly OpenERP) to comply with Bulgarian laws. The system contained business critical components for stock management, invoicing, CRM, and quality control.
  • Designed and implemented a back-end service for managing software updates of devices.
Technologies: Corona SDK, Kivy, Lua, Odoo, Bash, Qt, C++, C, Django, Python

Python Developer

2011 - 2012
Sofia Urban Mobility Center
  • Implemented functionality to a park-by-SMS system, serving 300,000 parking requests per day in Sofia city center.
  • Performed a roll-out of major database schema changes iteratively, allowing parking in multiple zones while preserving normal system operation.
  • Developed a module for vignette stickers, allowing citizens living in Sofia city center to purchase yearly subscriptions and park their vehicles cost efficiently.
Technologies: JavaScript, PostgreSQL, Django, Python

Python Developer

2010 - 2012
  • Developed OSQA (open source Q&A platform, similar to StackOverflow), currently deployed on hundreds of websites.
  • Coordinated with the community on feature requests, bug fixes and merge requests.
  • Implemented and deployed custom add-ons for two enterprise grade clients.
Technologies: JavaScript, Bash, Amazon Web Services (AWS), Django, Python

Python Developer

2008 - 2010
  • Delivered more than 20 web-based projects in two years.
  • Introduced Python and Django into the tech stack of the company and implemented it as a primary toolset for new projects.
  • Automated the deployments to staging and production environments.
Technologies: JavaScript, MySQL, PHP, Django

Open Source University

Established in 2015 as an R&D project at the Technical University of Sofia, OS.UNIVERSITY is a global blockchain-based platform with a mission to help learners claim and advance their academic and professional identities beyond borders by providing them with a competence passport on the immutable blockchain.

OS.UNIVERSITY has a multichain architecture and is powered by EDU tokens, providing zero-percent commission fees for transactions on the decentralized educational marketplace.

From content discovery to validation and verification of acquired knowledge and skills, the diverse set of smart contracts behind the ÐApp shape (OS.UNIVERSITY) as the go-to location for the next generation of learners.

An open source Q&A system, similar to

Paranoik Backups Master
A mini-framework I wrote in Python, which helps to build simple backup solutions. The framework provides a mechanism to back up different things on a server, such as directories, MySQL databases, and PostgreSQL databases—aiming to ease the automation of backups on servers and developers' machines.
2011 - 2015

Bachelor's Degree in Industrial Engineering

Technical University of Sofia - Sofia, Bulgaria


The John Atanasoff – Projects with Outstanding Social Significance

President of the Republic of Bulgaria

JUNE 2014 - JUNE 2016

Certified Scrum Master

Scrum Alliance


Kivy, React


Docker Compose, Atom, Git, Odoo, GitLab CI/CD, GitLab


Django, Django REST Framework, Qt, Corona SDK, Redux


Agile Software Development, Continuous Integration (CI), Continuous Delivery (CD), Design Patterns, Functional Programming


Python 3, Python, JavaScript, Bash, C, C++, Lua, PHP, Solidity, Kotlin


Linux, Amazon Web Services (AWS), Docker, Kubernetes, Meteor, Visual Studio Code (VS Code)


PostgreSQL, MySQL, MongoDB


Tornado, Backups

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring