Aleksandr Castillo Guzman
Senior Software Engineer at Veson Nautical
Senior Software Engineer at Veson
Accomplished software developer with over ten years of experience in developing web applications. Throughout my career, I’ve created large enterprise applications that can handle millions of requests per day, web forms with hundreds of fields and complex embedded calculations with support of version control and concurrency editing conflicts handling and applications that can process big sets of data and at the same time provide a responsive user interface.

•	Designing system architecture and its components;
•	Developing web application backend, REST and WCF services; 
•	Developing client-side functionality;
•	Multi-threaded and parallel programming of high-performance solutions; 
•	Creating proofs-of-concept, load testing, profiling, optimization;
•	Designing full-text search solutions;
•	Performing design and code reviews;
•	Scope decomposition and estimation;
•	Leading a team of developers;
•	Hands-on experience of Agile (Scrum) and Spiral methodologies.
Veson Nautical
https://www.linkedin.com/company/veson-nautical
Boston, MA
https://media-exp1.licdn.com/dms/image/C4D0BAQEWkU31SSdrhw/company-logo_100_100/0/1583166933968?e=1655942400&v=beta&t=dlRc3xqXBVt7s8ROswAl_UBdKdCBJTIVAxA5rVrrl_w
Senior Software Engineer
Veson Nautical
https://www.linkedin.com/company/veson-nautical
Boston, MA
https://media-exp1.licdn.com/dms/image/C4D0BAQEWkU31SSdrhw/company-logo_100_100/0/1583166933968?e=1655942400&v=beta&t=dlRc3xqXBVt7s8ROswAl_UBdKdCBJTIVAxA5rVrrl_w
Software Engineer
Digital Federal Credit Union
https://www.linkedin.com/company/dcucreditunion
•	Developed backend and REST API for DCUPay – a new mobile payment application.
•	Lead developer of several projects with tough deadlines for new financial products that provide great flexibility and at the same time a high yield on members’ savings.
•	Developed backend for DCU Voice banking platform, providing members with access to account balances, transfers and other banking functions on millions of devices through Amazon Alexa and Google Assistant.
•	Designed and developed a solution that allows ~1M members not to use their IDs for everyday banking.
Marlborough, MA
https://media-exp1.licdn.com/dms/image/C4E0BAQHyBC0L7ZiIzg/company-logo_100_100/0/1557838953232?e=1655942400&v=beta&t=dlvMchOYJvo-jiniwC7hLu7R4gAUQ3CApGZYPcfadnM
Senior Application Developer
DIO-soft
https://www.linkedin.com/company/dio-soft
I worked as a Senior .NET Developer on NewOak Capital OpenRisk Advantage project – a constructor of customizable forms and questionnaires used for collecting and aggregating financial data for in-depth analysis, allegation rebuttal and reporting.
•	Rewrote client-side JavaScript driven expression engine, solving a range of long-standing bugs and laying a foundation for the following rapid extension of expressions.
•	Introduced repeating forms – a feature that allows specifying a subset of repeating fields and presenting them in a table or plain format. Repeating forms reduced form creation time, simplified fill out and increased clarity.
•	Helped to develop forms linking – an ability to refer a value from another form eliminating data duplication and copy-paste mistakes.
•	Developed server-side expression engine for lazy evaluation across linked forms to guarantee updating of stale values and at the same time maintaining UI usability and responsiveness.
•	Architecture improvements, code optimization and refactoring.
Minsk
https://media-exp1.licdn.com/dms/image/C4E0BAQHfxOnE-5pqZg/company-logo_100_100/0/1519895521097?e=1655942400&v=beta&t=2RC7dyjFNdmI8zmwtcGpkny1vbzl-I0GsNZXIJXPdck
Senior Software Engineer
ProntoSoft
https://www.linkedin.com/company/prontosoft
I worked as a .NET Developer and then as a Lead .NET Developer of Job.ru portal - one of the lead recruitment website in Eastern Europe.
•	Developed proofs-of-concept and tested their applicability for solving feature requests.
•	Developed core and challenging parts of the application.
•	Performed DB and full-text search optimization, improved application performance.
•	Coordinated teamwork.
•	Worked on improving the development process, team collaboration.
•	Conducted interviews of job candidates.
•	Couched and mentored juniors.
Minsk
https://media-exp1.licdn.com/dms/image/C4E0BAQH2iBOZvKSPyQ/company-logo_100_100/0/1519878155557?e=1655942400&v=beta&t=uRG_RL9oWe2Mv9v2sLFtxHfleaatCgoLmUKV0i4RJlI
Software Engineer
InfoStar
I worked as a .NET Developer in small and medium-sized teams on projects for the corporate sector.
•	Designed architecture of applications.
•	Developed prototypes.
•	Designed database sachems.
•	Developed back-end functionality.
•	Developed UI, including JS components, AJAX requests.
Minsk
Software Engineer
C-labs
https://www.linkedin.com/company/c-labs-s-r-l-
I worked as a PHP Developer in a small team on a range of Web-projects.
•	Developed back-end functionality.
•	Developed front-end and UI components.
•	Optimized SQL-queries.
•	Supported and did refactoring of legacy code.
Minsk
Software Engineer
Bachelor’s Degree
Faculty of Computer Systems and Networks
https://media-exp1.licdn.com/dms/image/C4E0BAQG-ErLp66BRdg/company-logo_100_100/0/1519912465140?e=1655942400&v=beta&t=jHWfyeaWhUK-pc9cbxS-Nfhtlt9p6uFq7dJkC89Zih4
Belaruski Dzjaržauny Universitet Informatyki i Radyjoelektroniki
https://www.linkedin.com/school/belarusian-state-university-of-informatics-and-rad/
Amazon Web Services (AWS)
www.credly.com
AWS Certified Developer – Associate
https://www.credly.com/badges/098a2fa8-1161-4e09-8cf4-40b485edefd9?source=linked_in_profile
Amazon Web Services (AWS)
www.credly.com
AWS Certified Solutions Architect – Associate
https://www.credly.com/badges/7c7e496c-f156-42ca-8e77-ef92a7c6eb97?source=linked_in_profile
https://www.linkedin.com/in/kripasundar99
Greater Boston
Kripa Sundar
Senior Software Engineer at Veson Nautical
https://www.linkedin.com/in/jack-baker-84535a84
Boston, MA
Jack Baker
Software Developer
https://www.linkedin.com/in/meagan-hiatt-21986033
Tewksbury, MA
Meagan Hiatt
Software Engineer
https://www.linkedin.com/in/bilgehans
Boston, MA
Bilgehan Saglik
Senior Software Engineer at Veson Nautical
https://www.linkedin.com/in/yuri-ivanov-29b61010
Greater Boston
Yuri Ivanov
Principal Software Engineer at Veson Nautical
https://www.linkedin.com/in/ian-vanburen-a253751a0
Greater Boston
Ian Vanburen
Senior Software Engineer at Veson Nautical
https://www.linkedin.com/in/jesse-diianni-pmp%C2%AE-a230961
Boston, MA
Jesse DiIanni, PMP®
Vice President, Global Services at Veson Nautical
https://www.linkedin.com/in/joshua-luby
Boston, MA
Joshua Luby
Group Product Manager at Veson Nautical
https://www.linkedin.com/in/ian-whittle
Suffolk County, MA
Ian Whittle
Engineering Manager at Wayfair
https://www.linkedin.com/in/smgreenfield
Cambridge, MA
Stephen Greenfield
Software Developer at Veson Nautical
https://www.linkedin.com/in/brian-berry-9200044
Boston, MA
Brian Berry
Director, Technical Solutions at Veson Nautical
https://uk.linkedin.com/in/richard-silk-6417806
Southwark
Richard Silk
Senior Vice President at Veson Nautical
https://www.linkedin.com/in/azharsark
Greater Pittsburgh Region
Azhar Khan
Software Developer | .Net Core, Angular (Full Stack) | Microservices | DevOps, Azure, AWS
https://www.linkedin.com/in/nirojkoirala
West Des Moines, IA
Niroj Koirala
Software Developer at Advanced Technologies Group
https://www.linkedin.com/in/ihar-piatrou-780775119
Greater Philadelphia
Ihar Piatrou
Senior Software Developer at Sitecore
https://www.linkedin.com/in/bill-azjargalbayar
Rolling Meadows, IL
Bill Azjargalbayar
Software Engineer at Availity
https://www.linkedin.com/in/solomonliberta
Austin, TX
Solomon Liberta
Software Developer at Kyndryl
https://www.linkedin.com/in/ruchita-desai-13282557
St Charles, MO
Ruchita Desai
Software Developer
https://www.linkedin.com/in/jayakumar-lavudi
Lakeland, FL
Jayakumar Lavudi
Software Developer (Contract) at Publix Super Markets
LinkedIn User
      
          



            
              
        
              
  

    
        I’ve known Alex quite long, since 2011, I suppose. Alex is a good team player and it was very comfortable for the whole team to work with him. He started as mid developer and then grew to senior software developer and was involved mainly in doing important and challenging tasks. He was also responsible for team unit's work. 
I could say that Alex is very responsible, attentive to details and result-oriented person and of course, I would be glad to work again with him if there were such an opportunity. There were quite a lot stressful situations in a project and Alex managed to stay calm and find solutions for the problems, which inspired a lot the whole team.
Liked by Aleksandr Castillo Guzman
https://www.linkedin.com/signup/cold-join
Happy Holidays from the Veson Nautical HR team! I wish the whole HR team could have been in the photo but hopefully soon!! #onboardatVeson #hr…
Liked by Aleksandr Castillo Guzman
https://www.linkedin.com/signup/cold-join
Giving back to our communities and charitable organizations is at the core of who we are. On #GivingTuesday, let us come together as one to spread…
Liked by Aleksandr Castillo Guzman
https://www.linkedin.com/signup/cold-join
OnBoard at Veson! Veson Nautical is looking for Technical Consultant - EMEA. Learn more or Jobvite a friend.
Quantasoft Web Hosting
https://media-exp1.licdn.com/dms/image/C5107AQGFv_A8rMfqHg/group-logo_image-shrink_200x200/0/1631435224432?e=1647687600&v=beta&t=bI-1BhfGtnT5jAPbEtZDWCzhQW11ML4Vs_tkvsOYO-4
https://www.linkedin.com/groups/2128897
.Net Professionals
https://media-exp1.licdn.com/dms/image/C4E07AQHTuuPSrBQUjA/group-logo_image-shrink_200x200/0/1631380845949?e=1647687600&v=beta&t=nXhtEXQ01ujOyesE4E66sf6nYl0OqLpAioWw4YT0S2A
https://www.linkedin.com/groups/46954
ASP.NET,C#/VB.NET  Developer/Programmer
https://media-exp1.licdn.com/dms/image/C4D07AQE3LY2B5_DMjA/group-logo_image-shrink_92x92/0/1525123787758?e=1647687600&v=beta&t=3fSY58CWCl0JCjt5PzBw4LIffkwDm35_tz97pwQrzNI
https://www.linkedin.com/groups/2139884
.NET Developers
https://media-exp1.licdn.com/dms/image/C4E07AQHIbj0ELKRZag/group-logo_image-shrink_92x92/0/1633370639965?e=1647687600&v=beta&t=cx4UrobX4qxqNBTnDh9Z1MpKzHxD93S2yXVkqGW4AlA
https://www.linkedin.com/groups/40949
Sphinx - free open-source SQL full-text search engine
https://media-exp1.licdn.com/dms/image/C4E07AQFbsu6iyWkEcQ/group-logo_image-shrink_200x200/0/1631374592809?e=1647687600&v=beta&t=lixQiftF5lGu2V8VhjObSevQLvjvH_6tb1aJ_fsmV44
https://www.linkedin.com/groups/2122077