I am a full-stack software developer with broad experience across both front-end and back-end technologies, with a strong focus on **C#, .NET, React, and TypeScript**. My background allows me to build reliable, scalable, and user-friendly applications, and I adapt quickly to new technologies and complex challenges. I have worked on high-responsibility projects, including medical software where quality, stability, and security were critical. In these roles, I focused strongly on clean, maintainable, and extensible code, supported by modern **CI/CD* pipelines and rigorous quality standards. Alongside hands-on development, I have experience leading and mentoring teams, helping junior developers grow while keeping projects on track. Most of my professional experience has been in international, fully remote teams, collaborating with colleagues from **Germany, Sweden, the USA, and Denmark**. --- **Employment and project experience** **Technical Co-founder* at Kreditai verslui _November 1, 2025 – Present_ **Full Stack Software Engineer** at ConfiStecH, UAB _August 1, 2025 - November 1, 2025_ **Full Stack Software Engineer* at Crediflow AB _November 1, 2020 - July 1, 2025, November 1, 2017 - September 1, 2018_ **CTO** at UAB TableAir _September 1, 2018 - October 1, 2020_ **Senior Software Developer and Architect** at Medical project for Elekta _February 1, 2002 - November 1, 2017_

Sigitas Limontas

I am a full-stack software developer with broad experience across both front-end and back-end technologies, with a strong focus on **C#, .NET, React, and TypeScript**. My background allows me to build reliable, scalable, and user-friendly applications, and I adapt quickly to new technologies and complex challenges. I have worked on high-responsibility projects, including medical software where quality, stability, and security were critical. In these roles, I focused strongly on clean, maintainable, and extensible code, supported by modern **CI/CD* pipelines and rigorous quality standards. Alongside hands-on development, I have experience leading and mentoring teams, helping junior developers grow while keeping projects on track. Most of my professional experience has been in international, fully remote teams, collaborating with colleagues from **Germany, Sweden, the USA, and Denmark**. --- **Employment and project experience** **Technical Co-founder* at Kreditai verslui _November 1, 2025 – Present_ **Full Stack Software Engineer** at ConfiStecH, UAB _August 1, 2025 - November 1, 2025_ **Full Stack Software Engineer* at Crediflow AB _November 1, 2020 - July 1, 2025, November 1, 2017 - September 1, 2018_ **CTO** at UAB TableAir _September 1, 2018 - October 1, 2020_ **Senior Software Developer and Architect** at Medical project for Elekta _February 1, 2002 - November 1, 2017_

Available to hire

I am a full-stack software developer with broad experience across both front-end and back-end technologies, with a strong focus on C#, .NET, React, and TypeScript. My background allows me to build reliable, scalable, and user-friendly applications, and I adapt quickly to new technologies and complex challenges.
I have worked on high-responsibility projects, including medical software where quality, stability, and security were critical. In these roles, I focused strongly on clean, maintainable, and extensible code, supported by modern *CI/CD pipelines and rigorous quality standards.
Alongside hands-on development, I have experience leading and mentoring teams, helping junior developers grow while keeping projects on track. Most of my professional experience has been in international, fully remote teams, collaborating with colleagues from Germany, Sweden, the USA, and Denmark.


Employment and project experience

*Technical Co-founder at Kreditai verslui
November 1, 2025 – Present

Full Stack Software Engineer at ConfiStecH, UAB
August 1, 2025 - November 1, 2025

*Full Stack Software Engineer at Crediflow AB
November 1, 2020 - July 1, 2025, November 1, 2017 - September 1, 2018

CTO at UAB TableAir
September 1, 2018 - October 1, 2020

Senior Software Developer and Architect at Medical project for Elekta
February 1, 2002 - November 1, 2017

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Experience Level

Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Advanced
Lithuanian
Fluent
Russian
Advanced

Work Experience

Co-founder, Technical at Kreditai verslui
November 1, 2025 - Present
Architecting and building the loan auction system from scratch; backend architecture, APIs, and database models; collaborating with business co-founder on product requirements; tech stack includes C#, .NET, React, Typescript, DDD, CRQS, Azure, Bicep, GitHub Actions.
Full Stack Software Engineer at ConfiStecH, UAB
August 1, 2025 - November 1, 2025
Implemented features for both legacy and new projects in .NET and React stack; worked with C#, .NET Core, React, Typescript, Razor, Cosmos DB, MS SQL Server, Git, Docker.
Full Stack Software Engineer at Crediflow AB
November 1, 2020 - July 1, 2025
Engineered key components of an intelligent document recognition system; RESTful APIs, web portal, Windows services, and embedded scanner software; implemented CI/CD pipelines with Jenkins; integrated front-end and back-end components; migrated code from Windows services to Python microservices.
Software Architect / Integration Engineer at Turimeda
January 1, 2023 - December 1, 2024
Designed and implemented an integration system for an AI-powered platform that detects aortic diseases from medical imaging; microservices-based with Dockerized AI algorithm; AWS deployment; DCM4CHE for DICOM communication; dual access via web UI and DICOM protocol; clinical workflow integration.
Software Developer at Allresults.live
March 1, 2019 - Present
Developed a cross-platform competition management system for real-time event coordination and live score updates; implemented offline functionality with data synchronization; explored PWAs, service workers, Firestore realtime updates.
CTO at UAB TableAir
September 1, 2018 - October 1, 2020
Led the technical vision for cross-platform smart workspace solutions; developed iOS and Android apps with a shared C++ core; web portal and device firmware; applied DevOps; scalable web solution hosted on AWS.
Full Stack Software Engineer at OptoSweden AB
November 1, 2017 - September 1, 2018
Engineered key components of an intelligent document recognition system; RESTful APIs, a web portal, Windows services, and embedded scanner software; implemented CI/CD with Jenkins; migrated to Python microservices; front-end/back-end integration.
Senior Software Developer and Architect at UAB Rubedo Sistemos
December 1, 2009 - November 1, 2017
Developed medical and robotics software; designed core system architecture including 3D GUI modules for hardware visualization and real-time control; performed mathematical research for precision; established QA and CI processes; worked in a distributed international team.
Software Developer and Architect at UAB Net Frequency
February 1, 2002 - December 1, 2009
Developed medical and robotics software; designed core system architecture; implemented 3D GUI modules for visualization and real-time control; conducted mathematical research for precision; contributed to QA/CI processes; worked in an international team.
C++ Programmer at InteraMotion LLC
August 1, 2001 - February 1, 2002
Developed software for computer vision; implemented network communications and AI modules (fuzzy state machine and neural networks); participated in an international, distributed team.
C++ Programmer at Green Moon (bachelor's project)
January 1, 2000 - July 1, 2001
Participated in virtual world modeling system; Linux server and network communications; used C++, DirectX, OpenGL, CORBA (OmniORB), MySQL.

Education

M.S. in Software Engineering at Kaunas University of Technology, Kaunas, Lithuania
January 11, 2030 - January 1, 2003
B.S. in Computer Science at Kaunas University of Technology, Kaunas, Lithuania
January 11, 2030 - January 1, 2001

Qualifications

C++ (Brainbench Master)
January 11, 2030 - January 9, 2026
Programmer/Analyst Aptitude (Brainbench Master)
January 11, 2030 - January 9, 2026
Programming Concepts (Brainbench Master)
January 11, 2030 - January 9, 2026
Project Management (Brainbench, 2005)
January 11, 2030 - January 9, 2026

Industry Experience

Software & Internet, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
See more