Full Stack Software Development
Resume:
English
DANIEL SALO
SR BLOCKCHAIN DEVELOPER
SR FULL-STACK DEVELOPER
CONTACT
LANGUAGE
PHONE
ADDRESS
+358 (044) 157 6
Kyläkirkontie 10, 00370
Helsinki, Finland
EDUCATION
University of Helsinki
Computer Science
Bachelor's Degree
SKILLS
JavaScript
TypeScript
React.js
Angular.js
A B O U T M E
Passionated full-stack & web3 developer with more than 10+ years of software development experience. Hands-on experiences in integrating, testing, and documentation of enterprise client/server web & dApps as well as designing and deploying modern single page applications. Ready to apply my passion for coding to a talented engineering team to develop quality solutions.
E X P E R I E N C E
SOLARR (Apr 2022 - Feb 2023)
SENIOR FULLSTACK & BLOCKCHAIN DEVELOPER
Worked closely with Product team to get business requirements
& logics and converted all the business requirements into technical requirements, so all the developers could have firm understanding of requirements.
Managed a geographically distributed team of 8 developers with operations, priorities, and development goals utilizing Agile techniques such as weekly/bi-weekly scrums.
Took part in architectural design session for enterprise SaaS Payment System (support Crypto payment) and proposed a microservice-based design and resolved the SPOF (Single Point of Failure) and high-limit stress on backend.
Implemented a proper design pattern for Bank Interaction service to interact with Banks by parking the Bank APIs as plugins, and as a result, could easily add or remove Bank APIs by setting configurations.
Collaborated with designers and developer to deliver high-quality web projects for clients and developed re-usuable components and implemented best practices to improve team productivity and efficiency.
Developed and deployed smart contracts for dApps like NFT marketplaces, Crypto Payments, and DEX projects by using solidity, hardhat, and truffle and using jest, and mocha, implemented unit testing.
Implemented gas optimizing techniques such as code refactoring. minimizing storage access, and reducing computation time, resulting in significant cost savings. Participated in 300+ code reviews and smart contract audits to ensure code quality and found out critical issues and resolved. adx136@r.postjobfree.com
Worked closely with Product managers and UI/UX designers to estimate development timelines, provided technical feasibilities, and lead the development of high-quality, intuitive, visually appealing user interfaces .
Designed and implemented scalable and re-usable code pattern to enable Skin-able feature on frontend by parking UI themes as plugins, and provided different UI themes for each SaaS users
(companies) .
Implemented several methods like caching, CDN, Virtualization, utilizing lazy-loading and optimized and improved performance on front-end and managed event listeners and prevented memory leaks.
Set up a serverless microservice by using AWS Lambda functions to create thumbnail images, so that displayed thumbnail images on explorer pages to reduce the loading time.
Took part in several decentralized applications like NFT platforms, Token Bridge project, DeFi, and Crypto exchanges utilizing React.js,Node.js, Web3.js and GraphQL, and solidity. Proposed several methods to improve performance on NFT projects from the architectural level to code-based level, and implemented lazy loading, and as a result, reduced the loading time of assets to 1.5 seconds.
CoinCheck (Oct 2020 - Feb 2022)
SR FULLSTACK & BLOCKCHAIN DEVELOPER
Angular
Vue.js
Next.js
Nuxt.js
Node.js
Express.js
Nest.js
GraphQL
MongoDB
MySQL
PostgreSQL
Web3.js
Ethers.js
Solidity
Rust
Hardhat
Truffle
Cryptocurrency
Non Fungible Token (NFT)
AWS
Azure
GCP
Lambda Functions
Serverless Architecture
Software Architecture
DynamoDB
Smart Contracts
DEX / DeFi
NFT Platform
Banking System
Payment System
Casino
Docker
Kubernete
Agile Methodology
Jest / Cypress
Adopted engineering best practices and delivered highest quality scalable solutions.
Designed a solution for indexing events on EVM chains into our DB and to collect specific metrics around NFT tokens. Architected, developed and deployed decentralized applications and smart contracts using JS/TS/Solidity, React/Vue and Web3/Ethers/Hardhat/Truffle.
Created a scalable cloud infrastructure using AWS or other cloud providers, that reduced costs and increased reliability and scalability.
Provided infrastructure and integration guidelines for load- balancing and web farm deployment.
Work in TDD(Test-Driven Development) and performed testing using Jasmine and Karma.
Tried to stay up-to-date with the latest trends and technologies in frontend development, and contributed to the development of testing strategies, and mentored and coached junior developers on the team.
Comsa (Apr 2018 - Sep 2020)
FULLSTACK & BLOCKCHAIN DEVELOPER
Used various ideas from distributed computing, large-scale design, real-time data processing, and data storage to solve challenging dataset problems.
Developed app integration with REST / SOAP and other APIs for Google Maps, social media logins, payment processors, and other services.
Designed and developed a highly scalable notification system using SNS and SQS, resulting in improved reliability and reduced downtime.
Architected and developed many eCommerce sites ranging from 5M to over 1B in annual revenue.
Applied hands-on learning and agile development to build full MERN stack applications.
Excellent experience creating Restful/GraphQL web API, and microservices, with containerized applications like Docker, Kubernetes, etc
Nosto (Aug 2016 - Feb 2018)
FULLSTACK DEVELOPER
Built User-friendly interface and reusable code template using React, Angular, and Vue.
Developed innovative, multilingual, responsive, and dynamic user interfaces.
Designed an integrated database using MongoDB, MySQL, and PostgreSQL that leveraged the React architecture to yield on- demand detailed feedback.
Responsible for Checking Cross Browser Compatibility of different elements and tags, hence worked on different browsers like Internet Explorer, Google Chrome, Firefox, Opera, and Safari.
Designed and developed or rebuilt 10+ websites utilizing JavaScript, TypeScript, ReactJS/Redux, and PHP, Laravel and brought remarkable growth in each project.
Experienced in working with RESTFUL Web Services and Implementing RESTFUL API's and applying the latest software development approaches including MVC, event driven application using AJAX, Object Oriented JavaScript, JSON and XML.
Sulake (Feb 2014 - Jul 2016)
FULLSTACK DEVELOPER
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