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Ugtakhbayar Surakhbayar

I buildweb applications

With over 10+ years of experience in reliability engineering, system design, software development, automation, and problem-solving across various industries. In recent years, I have focused on modern technologies including fullstack, NoSQL Database, PostgreSQL, Data analysis and AWS cloud solutions.

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đź“§ugtakhbayars@gmail.com
📍Ulaanbaatar, UB (Remote)
âś…open

About Me

Get to know me better

Senior full-stack software engineer with 10+ years of experience building scalable, production-grade web applications. Specialized in React, Next.js, Node.js, and modern cloud platforms including AWS and Vercel. Strong advocate of clean architecture, TDD, and CI/CD, with experience across both startup and enterprise environments. Recently focused on integrating AI capabilities into web products.

I focus on building clean, maintainable, and scalable codebases, with a strong emphasis on test-driven development and CI/CD. Having worked across both startup and enterprise environments, I bring a balanced perspective on engineering trade-offs, delivery speed, and long-term sustainability.

I build full-stack web applications using React, Next.js, and Node.js, with a growing focus on integrating AI capabilities such as LLM-based features and machine learning workflows. I have solid experience designing and operating cloud infrastructure on AWS and Vercel. Outside of core development and mentor developers, with a strong interest in continuous learning and knowledge sharing.

20+
Projects Completed
100%
Client Satisfaction
10+
Years Experience
10+
Technologies Mastered

Skills & Expertise

A comprehensive overview of my technical proficiencies and tools I work with daily

Ai Ml

2

Backend

6

Cloud

4

Database

5

Design

2

Devops

4

Frontend

4

Mobile

2

Other

11

Soft Skills

4

Testing

2

Tools

1

Work Experience

My professional journey

Founder / CTO

A Science LLC

•full-time
Mar 2025 - Present•Remote

Senior Software Engineer

Nest Core LLC

•full-time
Jun 2021 - Mar 2025•Ulaanbaatar, MN

As lead teacher, the curriculum is development and their academy jobs are implementation and improvement. As senior software engineer, lead and code review the collaboration to the development team’s activities include ensuring collaboration between members and other teams, overseeing project implementation and development of code and making code improvement and led and managed the overall system design and development using modern techs such as graphql, monorepo, e2e test, unit test and aws services.

Key Responsibilities:

  • Architect and implement scalable full-stack applications using React, Next.js, and Node.js
  • Lead a team of 5 developers in agile development practices
  • Implement CI/CD pipelines reducing deployment time by 60%
  • Mentor junior developers and conduct code reviews
  • Collaborate with product managers and designers on feature planning

Achievements:

  • Ebarimt service for receipt of payment of learners calculated with VAT that are sent to a general department of taxation and the learners. Furthermore, we have saved the accountant operation time.
  • Automate routine operations such as choice seat, study direction, contract and payment of course.
  • Decreased the time of the new learner register process from between 1.5 and 2.0 hours to about 5 - 8 minutes and saved the register process to up 85 percent.
  • A third-party database for managing user access and permissions that can be used as an integration for our internal services.
  • a module feature of plan and lesson schedule for learners.
  • automated to the module feature for academy operation and teacher and reduced time.
ReactNext.jsNode.jsTypeScriptAWSDockerPostgreSQLCypressJestFigmaFirebaseTechnical LeadershipReact NativeMongoDBPostgreSQLGitHub ActionsCommunication

Reliability Engineer

Oyu Tolgoi LLC

•full-time
Aug 2016 - Jul 2020•umnugovi, MN

Contribute to developing planning and strategy of equipment based Reliability Centered Maintenance, PMO, asset management, engineering solutions and implementing necessary actions investigating root cause analysis using kishigawa and 5 why etc methods. Designed and implemented a report and application to manage the local team work.

Key Responsibilities:

  • mplementation and developed PMO and standard work procedures safely and planning maintenance areas such as Concentrator, Central Heating Plant, Concentrator, Raw Water Supply System, Water Treatment Bottling Plant.
  • Redesigned and developed for downtime reports of weekly and monthly for equipments of Concentrate plant.
  • Contribute to developing downtime reports weekly and monthly using Power BI.
  • Contribute to project SAP’s reliability tab usage and asset performance management software / APM / to be installed through maintenance teams for Central Heating Plant and Concentrate plant high voltage electricity team.
  • Designed and implemented the monthly report for 49 inch tires in the OT site.

Achievements:

  • Implemented real-time dashboard report and daily weekly and monthly report and processing 100+ users
  • Implemented to project SAP’s reliability tab usage and asset performance management software / APM / to be installed through maintenance teams for Central Heating Plant and Concentrate plant high voltage electricity team
PythonRTBSSAPMMRSPIPowerBIMSSQLAutocad

Scientist

Institute of Physics and Technolology

•full-time
Dec 2011 - Aug 2016•Ulaanbaatar, MN

Designed, developed and invented automation systems with microprocessors and a desktop application systems of customers and researchers for experiment with physics.


Key Responsibilities:

  • Responsible for Inventing new applications for physic’s experiments with automation systems.
  • Designed and Implemented desktop application with microcontroller system to datalogger.
  • Led project to new remote control and monitoring system based on GSM network.
  • Designed and Implemented advanced smart home system with microcontroller system to control appliances.

Achievements:

  • Successfully launched remote control and monitoring system
  • Successfully launched and invented 1 and 3 phase remote electrical power meter for 7 years valid.
  • Successfull invented radio receiver and transmitter using crypro security.
  • Invented cryptor key generator based on quantation physics.
C++ Visual Studio C#AltiumIARSystemARMKeil

Education

My academic background

Professional Software Engineer

Nest Academy

Software Engineering

Aug 2020 - Jun 2021

Continuous learning through professional development courses including Modern software technologies, AWS Solution and Full-Stack Development.

Achievements & Honors

  • â–¸Teaching for Fullstack Developer and Mobile Application Developer

Master of Science

University of Mongolian Science and Technology

Telecommunication / Computer Science

Sep 2014 - Jun 2015
GPA: 3.5/4.0

Specialized in embedded Systems and Computer Science. Completed thesis on "The possibility study of embedded systems development"

Achievements & Honors

  • â–¸ “The possibility of Embedded systems development” Khurel Togoot Conference-2015
  • â–¸Solution for smart control and monitoring system at Khurel Togoot Conference-2013
  • â–¸Received Youth Scientist Fellowship.
  • â–¸Teaching Assistant for Micro processors solutions

Bachelor of Science

National Unversity of Mongolian

Physica and Electronics Engineer

Sep 2010 - Jun 2011
GPA: 3.4/4.0

Comprehensive computer science education with focus on electronics principle and emebedded systems design.

Achievements & Honors

  • â–¸4th place National Electronics Olympiad
  • â–¸Winner 1st place in the Conference of Bachelor students
world map showing global connectivityWorld Map Connections

Get In Touch

Wherever you are in the world, let's work together on your next project.

Contact Information

đź“§

Email

ugtakhbayars@gmail.com
📱

Phone

+976 99898067
📍

Location

Ulaanbaatar, UB (Remote)

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