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Štefan Prokop

Security first backend & Blockchain developer

Works remotely from Vienna

  • 48.198674
  • 16.348388
  • Suggested rate €600 / day
  • Experience 7+ years
Propose a project The project will begin once you accept Štefan's quote.

This freelancer is available full-time but hasn't confirmed their availability in over 7 days.

Propose a project The project will begin once you accept Štefan's quote.

Location and workplace preferences

Vienna, Austria
Remote only
Primarily works remotely


Freelancer code of conduct signed
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Verified email


  • Czech

    Native or bilingual

  • English



Skills (12)

Štefan in a few words

I am security first backend and blockchain developer. I provide services such as web or web3 app development, mobile (Android & iOS) development, backend and Solana blockchain development and I do security audits for backend and Solana apps. I work together with my colleagues but only I am responsible for our result.

My most provided services are development of serverless microservices (Google / Firebase Cloud Functions or AWS Lambda functions), connecting apps to third party services and webhooks implementations (Stripe, Jot Forms, Slack, Facebook API, etc.), creating REST APIs for web / mobile apps, development of MVPs and security code reviews / audits / implementations.

I have an experience with working for entrepreneurs, small and mid-sized companies, agencies but also organizations like Volkswagen or SKODA auto, and startups like WeShare.

My projects and references are available on my LinkedIn:

I follow the newest trends of development, visit conferences and trainings to improve my knowledge and skills. I love reading, biohacking - I have a healthy lifestyle, sports - jogging, swimming, watching Formula 1 and traveling. I am also interested in personal growth and finance / investing.

If you want, you can contact me here:

I prefer remote work but sometimes I can work from your office, if you pay me the transport (flights / bus), accommodation and time on the way.




Backend & Solana Developer  - As a freelancer

Prague, Czechia

September 2017 - Today (4 years and 9 months)

- Creating the backend apps and Solana programs
- Creating web and mobile (iOS, Android) apps in cooperation with my team
- Doing Solana programs and backend apps security audits
- Doing technology researches, creating the MVPs, presenting and employee schooling

Ackee Blockchain


Vývojář Open Source  - As a freelancer

Prague, Czechia

April 2022 - Today (2 months)

- Development of the open source tool for testing Solana programs called Trdelnik

Economia, a.s.


Full Stack Developer  - As a freelancer

Prague, Czechia

May 2021 - June 2022 (1 year and 1 month)

- Management and development of online and internal products, technical analysis of our products
- References:,



Backend Developer  - As a freelancer

Prague, Czechia

April 2021 - July 2021 (3 months)

- Full remote development, mentoring and leading the project team
- The project I was responsible for was stopped by the client



Backend developer  - As a freelancer

Prague, Czechia

May 2018 - April 2021 (2 years and 11 months)

- Development of the client and internal products of all kinds (startups, IoT, fintech ...)
- Responsibility for backend application security / security auditor
- Development of the open source packages and libraries
- Travel within the project (Berlín)
- Writing technical articles
- References:,,,,



Backend developer  - As a freelancer

Prague, Czechia

May 2016 - September 2018 (2 years and 4 months)

- Development of the client web sites, eshops and applications
- Development of the internal CMS
- I had a small pause there because of the university duties

Lithium a.s.


Full Stack Developer

Carlsbad, KK, Czechia

September 2015 - May 2016 (8 months)

- Development of the logistics portal and client web sites
- I left because I wanted to do more complex projects and learn new technologies

Car Point Karlovy Vary


Backend developer

Carlsbad, KK, Czechia

May 2015 - September 2015 (4 months)

- Development of the car, order and customer management system and system
- It was seasonal contract for a few months just for development of this application