Tautvilas is available for hire
Hire TautvilasTautvilas Mecinskas
Verified Expert in Engineering
Full-stack Developer
Location
Vilnius, Lithuania
Toptal Member Since
August 22, 2022
Tautvilas is an IT veteran with over ten years of software development and project management experience. Equally capable of leading teams and delivering directly, he is versed in front-and back-end technologies. Tautvilas has founded and successfully sold several startups and enjoys using his skills to contribute to the exciting technological advances every day.
Portfolio
Get Inflow Ltd.
SQL, React, Node.js, JavaScript, Full-stack, React Native, Stripe, PostgreSQL...
C Digital Studio Ltd
Full-stack, Full-stack Development, React Native, Node.js, Firebase, JavaScript...
Discontract
React Native, Vue, Go, Kubernetes, IT Project Management, Product Owner...
Experience
Availability
Part-time
Preferred Environment
MacOS, Visual Studio Code (VS Code), ITerm
The most amazing...
...experience I've had is co-founding a startup and being a CTO responsible for all core tech decisions.
Work Experience
Full-stack JavaScript Developer
2023 - 2023
Get Inflow Ltd.
- Built a BI tracking infrastructure solution for cross-domain tracking.
- Designed and built a data processing pipeline tool that uses the OpenAI GPT API and queues.
- Implemented cross-platform grace period logic for subscription payments.
Technologies: SQL, React, Node.js, JavaScript, Full-stack, React Native, Stripe, PostgreSQL, Mixpanel, Customer.io, OpenAI GPT-3 API, Google Ads, AMQP
Cross-platform Mobile Engineer
2022 - 2023
C Digital Studio Ltd
- Developed and published React Native app (iOS/Android) and admin web portal from scratch in less than 160 hours.
- Guided the client with product and UX decisions regarding the mobile app.
- Oversaw app deployment to the app stores process and helped the client to proceed faster with the review process.
Technologies: Full-stack, Full-stack Development, React Native, Node.js, Firebase, JavaScript, Vue 3, TypeScript, React, Chart.js, Google Play Store, App Store
CTO
2019 - 2023
Discontract
- Determined all the important technical and architectural decisions for the app and web front and back end.
- Oversaw the whole release cycle of the Discontract mobile app.
- Raised funding for the Discontract startup together with my co-founder.
Technologies: React Native, Vue, Go, Kubernetes, IT Project Management, Product Owner, Android Development, DevOps, Firebase, App Store, Google Play Store, Android, iOS, Docker, Amazon Web Services (AWS), GitHub, Stripe API, Technical Leadership, Postman, Jira, Objective-C, API Integration, TypeScript, Express.js, Mobile App Development, SQL, Front-end, Vue 2, Vue 3, Back-end Development, REST, Android SDK, Gradle, Xcode, Architecture, Software Design, Leadership, APIs, JSON, Nuxt.js, Asterisk, Software Architecture, Technical Architecture
CTO and Co-founder
2019 - 2020
Redefinio
- Implemented a unique mobile-first WYSIWYG resume editor SaaS.
- Built a pixel-perfect HTML to PDF CV conversion implementation.
- Successfully sold the project on the MicroAcquire platform.
Technologies: Symfony, jQuery, JavaScript, HTML, Stripe, SaaS, Less, PDF, wkhtmltopdf, Docker, GitHub, GitLab, Stripe API, SQL, Front-end, REST, MacOS, Software Design
CTO and Co-founder
2019 - 2019
Dpage
- Designed and implemented a unique publishing tool that stores blog posts on the Blockstack public blockchain.
- Configured DNS routing in AWS, allowing blog publishers to use custom subdomains for their posts.
- Implemented the auto-embed feature that converted URLs to smart media embeds.
Technologies: Amazon Web Services (AWS), Amazon DynamoDB, JavaScript, React, Product Owner, GitHub, Blockchain, Front-end, Architecture
Technical Team Lead
2013 - 2017
Wix
- Developed and launched the first business-vertical editor app dedicated to hotel owners.
- Launched Wix Clubs together with my development team, an important mobile strategic product.
- Helped organize hackathons and workshops and delivered lectures at conferences about front-end development.
Technologies: React Native, Node.js, GraphQL, Scala, React, IT Project Management, Open Source, GitHub, MySQL, Angular, Wix, Redux, Test-driven Development (TDD), Jira, TypeScript, Express.js, Mobile App Development, SQL, Front-end, REST, MacOS, Architecture, Leadership
CTO and Co-founder
2007 - 2017
Mednet
- Designed and implemented a platform that facilitates client data exchange between medical laboratories and clinics.
- Integrated the platform with a legacy FoxPro system that gathers test lab results in local machines.
- Sold the project to one of the client laboratories.
Technologies: Symfony, SOAP, PHP, Doctrine, Visual FoxPro, Product Owner, GitHub, MySQL, API Integration, Full-stack, SQL, Back-end, Architecture, Software Design, APIs, JSON
Lead Software Developer
2011 - 2013
Mediapark
- Managed to build multiple developer teams for various full-stack projects.
- Implemented a time tracking software platform that a government organization uses.
- Communicated with stakeholders and prepared documentation and estimations for the projects.
Technologies: Symfony, Doctrine, Silex, Laravel, Zend Framework, Behat, Apache Maven, Apache Wicket, ICEfaces, MyBatis, Backbone.js, Node.js, jQuery, MongoDB, Oracle 11g, Oracle, PL/SQL, HTML, CSS, Bootstrap, SOAP, Gitolite, Git, IT Project Management, GitHub, MySQL, Technical Leadership, Full-stack, Back-end, Back-end Development, Architecture, Software Design, Leadership
Freelance Software Developer
2011 - 2011
TU Delft
- Developed the front end for an economics simulation engine.
- Implemented a feature where the code could be entered in the browser front-end and executed asynchronously in the back end.
- Designed the interface and layout for the tool dashboard.
Technologies: Java, Apache Maven, Spring, Java RMI, AspectJ, Gremlin, Groovy, Neo4j, HSQLDB, HTML5, HTML, JavaScript, jQuery, Git, Back-end Development, Software Design
Software Developer
2009 - 2010
Programmers of Vilnius
- Developed features for the HR management software, Ivija 360.
- Implemented the open-source tool, Zope object Database (ZODB) browser, allowing users to inspect persistent objects stored in the ZODB and view their attributes and historical changes.
- Implemented features that displayed charts in a PDF report document.
Technologies: Zope, Python, Pylons, ZODB, Bazaar, PDF, Back-end, Back-end Development
Internship Software Developer
2008 - 2008
Cern
- Designed and implemented the Compact Muon Solenoid detector Tier0 monitoring system.
- Designed and implemented a monitoring dashboard that displays how many terabytes of data chunks are transferred from the detector to the data warehouse.
- Used the locally developed Linux-based scientific software framework to gather and process necessary data.
Technologies: Python, CherryPy, SQLAlchemy, Linux, PostgreSQL, Back-end, Back-end Development, C
Junior Software Developer
2007 - 2007
Pivot Capital Managment
- Developed and maintained the Pivot Capital hedge fund management and trading software.
- Implemented financial charts used by the analytics department.
- Implemented a window docking system that improved the UX for the system.
Technologies: Java, Apache Maven, Spring, Hibernate, Subversion (SVN), Back-end, Back-end Development
Experience
Discontract.com
https://app.discontract.com/downloadDiscontract is a B2B2C platform for businesses and individuals which connects service providers and their clients.
The main service categories are plumbing, electrical work, cleaning, home repair, mounting, furniture assembly, and transportation. The platform provides time scheduling, invoices, integrated payments, secure communications, automated booking, and task tracking.
The main service categories are plumbing, electrical work, cleaning, home repair, mounting, furniture assembly, and transportation. The platform provides time scheduling, invoices, integrated payments, secure communications, automated booking, and task tracking.
Open Source React Native Calendars Library
https://github.com/wix/react-native-calendarsI was the core developer of the react-native-calendars library, which is used worldwide and has around 8,000 GitHub stars. The main functionalities of the calendars library include a simple calendar, agenda layout, calendar day marking, calendar list display, and many others.
EPOH
https://github.com/tautvilas/epohEPOH is a multiplayer browser strategy game. Unlimited number of players can connect to the server and engage in turn-based resource gathering, base building and combat adventure. The game is based on hex grid and all player turns are resolved simultaneously at the same time.
SedLog
https://play.google.com/store/apps/details?id=com.sedlogapp.prodSedLog is a mobile app designed by NHS doctors for sedation practitioners in the UK. Safely and securely log your anonymized patient cases where sedation has been administered and record the following information:
• Case information
• Sedation levels
• Medication
• Adverse events
• Interventions
• Outcomes
• Feedback/Notes
No more paper-based recording—securely and quickly record your cases on the go, even without an internet connection in the clinic. Your records are anonymized, and you own your data. View your reports at any time. Download as a CSV, login, and visualize your case information/data.
• Case information
• Sedation levels
• Medication
• Adverse events
• Interventions
• Outcomes
• Feedback/Notes
No more paper-based recording—securely and quickly record your cases on the go, even without an internet connection in the clinic. Your records are anonymized, and you own your data. View your reports at any time. Download as a CSV, login, and visualize your case information/data.
Skills
Languages
JavaScript, PHP, HTML, CSS, SQL, Java, GraphQL, Python, TypeScript, Less, C, Go, Scala, AspectJ, Objective-C, Gremlin, Groovy, HTML5, Visual FoxPro
Frameworks
React Native, Symfony, Express.js, Laravel, Redux, Spring, Angular, Bootstrap, Hibernate, Android SDK, CherryPy, Zope, Pylons, Silex, Zend Framework, Apache Wicket, ICEfaces, Nuxt.js
Libraries/APIs
Node.js, React, jQuery, Vue 2, Vue, Stripe, Stripe API, WebGL, SQLAlchemy, Java RMI, Doctrine, MyBatis, Backbone.js, Chart.js, AMQP
Tools
GitHub, Wix, Git, Jira, GitLab, Apache Maven, Subversion (SVN), Postman, Xcode, Gradle, HSQLDB, Behat, wkhtmltopdf, Asterisk
Paradigms
Test-driven Development (TDD), REST, DevOps
Platforms
Firebase, Linux, Android, Docker, MacOS, Kubernetes, iOS, Amazon Web Services (AWS), Blockchain, Oracle, Mixpanel
Storage
MySQL, JSON, MongoDB, PostgreSQL, ZODB, Neo4j, Oracle 11g, PL/SQL, Amazon DynamoDB
Other
API Integration, Mobile App Development, Full-stack, Front-end, Back-end, Back-end Development, APIs, IT Project Management, App Store, Google Play Store, Technical Leadership, Geometry, Architecture, Software Design, Leadership, Product Owner, Android Development, CTO, Open Source, Vue 3, Bazaar, PDF, Graphics, Games, Strategy, Game Design, Multiplayer, SOAP, Gitolite, SaaS, Software Architecture, Technical Architecture, Full-stack Development, Customer.io, OpenAI GPT-3 API, Google Ads
Education
2009 - 2011
Master's Degree in Biophysics
Vilnius University - Vilnius, Lithuania
2005 - 2009
Bachelor's Degree in Software Engineering
Vilnius University - Vilnius, Lithuania
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