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Mark Sierra
Technology
Unverified
Available (Full-time)

UTC +3 (Europe/Kiev)

Management (5-10)
US-eligible

7 years experience


Architect

Backend

Blockchain

Database Admin

DevOps

Frontend

Fullstack

IT Support

Mobile

Project Management

Software Development

Full Stack Developer with over 7 years of experience in Java/JS, Angular, Vue.JS, React, Python, Node.js. Led development of $300K research project which was deemed a "gold standard" by the client. Increased client's revenue 2-fold after fine-tuning AI/ML-based algorithms. Notable achievements include boosting the conversion rate of an existing website by 80% with improved code and design.

 

Javascript 7+ yrs

SQL 7+ yrs

Node.js 7+ yrs

React 7+ yrs

AWS (Amazon Web Services) 5+ yrs

TypeScript 5+ yrs

GraphQL 4+ yrs

Blockchain 4+ yrs

Ruby on Rails 3+ yrs

Senior Full Stack Developer, Voxel X Network

2021-01-01 - 2023-01-01
Ruby on Rails

Full Stack Developer, Tek It Con

2018-01-01 - 2021-01-01
Ruby on Rails

Web Developer | Solution Architect, Highwing

2016-01-01 - 2017-01-01

Bachelor's Degree, Singapore Management University

2011-01-01 - 2015-01-01