Sergey Sirotkin

Available to hire

Software Engineer, Analyst and Architect with more than two decades of experience in desktop, server and web solutions in such sectors as banking, railways, education, logistics, public services, private and non-profit.

About

Software Engineer, Analyst and Architect with more than two decades of experience in desktop, server and web solutions in such sectors as banking, railways, education, logistics, public services, private and non-profit.

Specializing in system integration, UI/UX design, test automation, solution engineering, full stack development, and requirements engineering — with applied skills, technologies and approaches listed in the sidebar.

Extensive international expertise with ample knowledge in a wide range of technology-oriented, scientific, business and social areas. Avid learner with consistency, commitment, style, scrupulousness, and excitement for reaso­nable challenge. Motivated to contribute with passion and reliability.

  • 27 years' experience
  • Joined February 2026

Languages

  • GermanFluent
  • GermanFluent
  • EnglishFluent
  • RussianFluent
  • BelarusianFluent
  • ItalianBeginner
  • FrenchBeginner

Industry experience

  • Software & Internet
  • Education
  • Financial Services
  • Transportation & Logistics
  • Government
  • Non-Profit Organization
  • Real Estate & Construction
  • Professional Services

More experts

Work experience· 10 roles

Senior Software Engineer · Pinnatec AGAug 2023 – Jul 2025 · 2 yrs

Agile full-stack development for STV-Contest (Switzerland’s nationwide sports-event platform); UI/UX enhancements and data processing; development of custom framework components.

Senior Software Developer · Bedag SolutionsJun 2020 – Mar 2022 · 1 yr 10 mos

Contributed to a software bundle for Swiss real estate register management; redesign and implementation of interfaces for cross-domain electronic business transaction services (Java, Spring, Angular/TypeScript, SQL, XML, REST, SOAP, HTML/CSS, Docker/Kubernetes, Flyway).

Founder / Owner / Tech Lead / Software Engineer · GIG.timeMar 2019 – Present · 7 yrs 9 mos

IT outsourcing/consulting: software development, system integration, requirements engineering, usability analysis. Projects involve Vaadin, Java, JavaScript, SQL, XML, HTML/CSS, REST; examples include a web-based railway path/loading planner, a dynamic quiz web app, private cloud solutions for SMEs, ATM cash-management workflow, automated PDF form processing, and railway schedule validation.

Senior Advisory Solution Architect / Analyst · Diebold NixdorfSep 2016 – Sep 2018 · 2 yrs 1 mo
Advisory Solution Architect / Analyst · Wincor NixdorfJan 2013 – Aug 2016 · 3 yrs 8 mos
Advisory Software Engineer / Analyst · Wincor NixdorfJan 2008 – Dec 2012 · 5 yrs
Software Engineer / Architect / Analyst · InterconnectiveDec 2007 – Sep 2018 · 10 yrs 10 mos
Software Engineer · WMC IT SolutionsOct 2006 – Sep 2007 · 1 yr

Education

Graduate IT Engineer with focus on Enterprise Computing · University of Applied Sciences, Brugg/Windisch, Switzerland2002 – 2005
Master of Arts (M.A.) in International Economic Relations · Belarusian Commercial University of Management, Grodno, Belarus1993 – 1998

Certifications and awards· 6

Visme Digital Design Foundations2025 – 2026
iSAQB Certified Professional for Software Architecture2021 – 2026
Object-oriented Design for Practitioners2009 – 2026
Cambridge Certificate of Proficiency in English2006 – 2026

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