Oliwer avatar
Oliwer avatar

Oliwer

Full Stack || Ecommerce || Blockchain
29 years oldBack-end development engineerCome from Sweden Living in Sweden - Beddingestrand
Language: English
Mandarin: a little

Logical and results-driven 10+ full stack developer dedicated to building and optimizing user-focused websites and applications. Judicious and creative when crafting effective websites, apps and ecommerce platforms to propel competitive advantage and revenue growth. Technically proficient and analytical problem solver with calm and focused demeanor.

Senior Software Engineer
Coinportfol
Jan 2023 - Oct 2023(10 months)

•Manage blockchain crypto website development projects from initial design through completion, optimizing •Developed and implemented smart contracts in Solidity, Rust language using Anchor framework, reducing transaction time by 50% •Led a team of 3 developers to deliver a blockchain-based project on time and within budget, utilizing solidity, Rust language and anchor framework to develop a decentralized application for supply chain management •Designed and deployed a private blockchain network using Hyperledger Fabric, integrating Solidity, Rust language and Anchor framework for smart contract development. •Built blockchain applications for supply chain management, digital identity verification, and decentralized finance in Rust language with Anchor framework •Successfully managed a portfolio of blockchain projects worth over $5 million, utilizing Rust language and Anchor framework for smart contract development, and providing technical guidance to junior developers •Conducted training sessions for the development team on Rust language and Anchor framework for blockchain development

Senior Shopify Developer
Kreatika
Aug 2022 - Apr 2023(8 months)

•Overhauled the UI for an internal tool to refund customers which helped the customer experience team improve refund speed by 14% •Handled several Shopify/Shopify Plus stores. •Focused on custom theme development and theme customization on existing ecommerce website from Shopify Ecommerce Platform •Established an interactive and dynamic websites that guarantees high traffic, page views and maximum user experience using WordPress CMS •Solved the various kind of problems, fixed the bugs that was happened on Ecommerce website for our customers •Provided effective Woocommerce and Shopify solutions and improved the website designs •Developed some shopify custom app and integrated with shopify online store and optimized shopify websites using Gzip compression and Lazyloading Javascript Library

Senior Full Stack Developer
True Engineering
Apr 2019 - Oct 2022(3 years)

•Completed 15+ Frontend and 12+ Backend, 10+ Ecommerce Platform using React, Material-UI, Next, Vue, Nuxt, Three.js, Node, Shopify, Shopify Plus, Shopify App, Shopify Theme, Shopify Theme customization, PHP, Python, Go, Django, Swift, C, Express, Laravel, Apollo GraphQL, AWS, Firebase Console Cloud, Google Cloud, GCP, MongoDB, MySQL, PostgreSQL, Linux/Devops, Git, Shell Scripts, Apache Lucene, Ansible/ELK, AI and Machine Learning, etc •Reduced performance tuning of the legacy data storages and search queries of the critical progressive web application using DAX and ORD resulting in response time by 79% •Analyzed the weblog data and extract the analytics from the data, Setup Hadoop cluster with 10 hosts (9 Data Nodes and 1 Master Node) using Cloudera Manager to process 7 TB of log data •Used Media Queries to deal with different CSS related issues on mobile devices as well as website to make it compatible •Handled response data from Restful web services using XML, JSON and jQuery to update UI •Collaborated with UX/UI design teams to improve checkout flow, increased conversion rates by 20% •Involved in consuming RESTful APIs and processing JSON data for rendering in UI •Involved in various phases of Software Development Life Cycle using Agile Methodology

Senior Frontend Developer
CodeNinja Consulting
Nov 2017 - Apr 2019(a year)

•Manage website and ecommerce platform development projects from initial design through completion, optimizing all cross-browser and multi-platform compatibility •Collaborated with the UX/UI design teams to improve the ecommerce platforms, websites and applications, increasing conversion rates by 30% •Optimized loading and building time of React, Shopify projects with 50% by using route level code enabling Gzip compression on Web Server, etc •Liaised Agile team across 4+ application domains, led architecture, design, and development of 5 new features •Designed dynamic and browser compatible pages using HTML5, CSS3, jQuery and Javascript •Built signle page application (SPA), responsive web design, UI using React, HTML5 grid layouts, CSS3 media queries where its an expression and can be used to either true or false

Full Stack Developer
Upsilon
Jan 2017 - Oct 2017(10 months)

•Influenced in both front-end and back-end for 20+ websites applications •Set servers and databases functionalities to reduce the request time by 30% using PHP •Ensured 100% cross-platform optimization for both mobile phones and websites •Ensured responsiveness, rich user experience and great user interface of applications •Designed and constructed APIs and cut down the request handling time by 20% •Stayed abreast of developments in web applications and 5+ programming languages •Experience working with Scrum/Agile methodology

Full Stack Developer Intern
Code Power
May 2016 - Dec 2016(7 months)

•Remained up-to-date with industry-standard technologies and mentored a team of 15+ junior developer •Implemented designs and style guides in to functional user interfaces, ensuring high performance and compatibility acros all major browsers using the javascript libraries jQuery, Mootools and Knockout •Learned and the codebase, improved coding skills writing structured, tested, readable and maintainable code •Facilitated maintain code quality, organization and automation for 6+ applications •Co-ordinated in developing and implementing systems architecture designs, patterns and approaches

Lund University
, Computer Science
Apr 2012 - May 2016(4 years)

I mainly studied information technology and computer science at engineer degree program in this university.

CSSJavascriptHTMLThree.jsReactNextVueNuxtPHPLaravelWordPressPythonGoDjangoDockerMySQLMongoDBFirebaseShopify.NETTypescriptjQueryJavaExpressNodeAngularRestful APIAWSGCPGitAzureSolidityWeb3.jsRustAnchorAI