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- Showing 30 profiles out of 144. Page 1 of 5.
Blockchain Developer
Active 2 days agoAvailable now📍INDIASolidity Ethereum Smart Contracts Web 3 Blockchain Dapps AWS Cloud Cryptography ERC20 ERC721 NFT EVM JavaScript Hardhat Truffle Go Git GCPSummary • Blockchain Developer with 8+ years of software development experience • Proficient in Smart Contract design, development, and deployment. • Strong programming skills in Solidity, Python, and JavaScript with TDD • Hands-on experience in ERC20, ERC 721/1155 token standards, and token development on EVM chains like Ethereum & Polygon. • Familiarity with enterprise blockchain solutions, consensus algorithms, and P2P networks • Excellent knowledge of blockchain use cases like Cryptocurrency, Smart Contracts, Wallets, Digital Assets, Tokens, Decentralised Finance, NFT, NFT Marketplace, asset bridges, Oracles, and ZK protocols. • Expertise in cryptography, digital signatures, hashing, contract security, and gas optimisation. • Skilled in databases like MySQL, Hive, Google BigQuery, S3, and IPFS • Web 3 libraries like Web3.js, Ethers.js, matic.js, Alchemy SDK, Polygon zkEVM • Front-end tech like HTML/CSS, JS, React JS , Backend tech like Node JS. • Integration libraries like Openzeppelin, Chainlink, Opensea, Infura • Cloud services like AWS, Amazon Managed Blockchain, Microservices • Tools like Docker, ChatGPT, GitHub and UnixFrontend Engineer
Active 4 days agoAvailable now📍IndiaBuilt frontend and key backend microservices for OnChainMonkey NFT.java
Active 5 days agoAvailable now📍chinaSo, here are my strengths: I've been doing development for five years now I know my way around common frameworks like Spring, MyBatis, Spring Boot, Spring Cloud, and Netty I'm familiar with RESTful standards and all things related to microservices When it comes to development tools, I'm pretty good with IntelliJ IDEA, Git, Rap2, and Postman I'm no slouch when it comes to using message middleware such as Redis and Kafka, and relational databases like MySQL either I'm also quite handy with Linux commands and Docker, and I can set up a complete cloud-native platform. I even know a thing or two about Kubernetes! I've got some knowledge in blockchain, DApp Web3j, and Aptos Move as well My communication skills are on point, and I'm always eager to learn more. Plus, I'm pretty self-motivated and I take pride in my work. How does that sound?- Senior Full-Stack Developer with over 9 years of experience in designing, developing, and deploying scalable web applications using JavaScript, React, and Node.js. Strong experience in Front-End and Back-End development with an emphasis on creating dynamic user interfaces and efficient server-side logic. Proficient in a wide range of related technologies, including Reactjs, TypeScript, Angular, Vue, Nextjs, Nodejs, django, ChatGPT, Microservice, GraphQL, AWS, Docker and CI/CD. Proven ability to work independently and within a team environment to meet project deadlines and exceed customer expectations with strong communication and team collaboration skills.
Senior full stack developer
Active 1 months ago Full Stack Engineer (JavaScript)
Active 2 months agoAvailable now📍Sri LankaMy journey to become a Blockchain Engineer has been very eventful. I started working under 99x Technology( a leading software services provider based in Sri Lanka, Norway and Sydney) for a start-up named Tracified (a supply chain traceability application which utilized the blockchain technology through agnostic means to provide trust through traceability), as a blockchain developer as part of their research team. While, being a part of the team i published a research paper on a "Blockchain Based Knowledge Sharing and Organising Platform" which focused on monetizing knowledge while making it a collective approach. Furthermore, I have developed an event registration and verification platform that tokenized Tickets as Stellar Assets and proved ownership of ticket. Following this, i have worked on ICO releases on a freelance basis for Exip Token, and few other classified companies. Most most recent success would be securing the third place at the long hash global hackathon during the pandemic for building a blockchain based crowd funding application called HumanFund. Finally, as to why i would be a great fit for this job, would be because of my ability to adapt and change at alarming velocity proven by my change in field from being a Bio, Chem, Phy student to being a Graduate in Computer Science and further being able to grasp blockchain and being able to use any language or service with just a brief stroll through their documentations makes me perfect to be the one who can make a difference. My background in research and development is a major boost to my ability to grow on my own. To address the elephant in the room, i am very well equipped and have trained myself to follow a CI/CD scrum project development method along with the help of AWS stacks, MERN stack and GoLang as a personal favorite. Please feel free to visit my website https://zeemzo.ml- I'm a self-taught developer, with a Masters in Telecom engineering, currently working as Senior Solutions Developer in FinTech industry. In the majority of my 10+ years of experience, I've been building backend components mainly, like rest apis, databases, background worker services, in the context of e-commerce, Fintech, Social Media, Chat app - using .Net Core, C#, MSSQL, EF, Node.JS, Websockets and others. Recently, I was Team lead of a team of three developers, in the context of a large Microservices project, based on Java - part of my responsibilities is to propose the architecture , set the safeguards for the developers (Frameworks, Design patterns, ), and ensure the best practices are followed. I've also delivered few front-end apps in Production using TypeScript (Angular), ASP.Net MVC, WPF. In my previous employment, I worked closely with mobile team, iOS and Android, while designing and implementing the backend endpoints to be consumed by the apps the team is building. In parallel to development, in the last 2+ years I was working as Project Manager where I managed around 6 projects in total - Agile environment.
Senior Solutions Developer
Active 2 months ago SOFTWARE ENGINEER (BACKEND/BLOCKCHAIN)
Active 2 months agoAvailable nowI am highly motivated and experienced software engineer with experience in developing and maintaining applications using Golang. Strong expertise in developing RESTful APIs, microservices, and scalable solutions. Skilled in Agile development methodologies, database design and management, and working with blockchaiLead Backend Engineer; Software Architect;
Active 2 months agoOpen to offers📍GreeceMicroservicesTypescript Javascript Rust Kotlin Node.js Quarkus PostgreSQL Mongo Kafka AWS GCloud Terrraform Redis Docker Kubernetes Software Architecture Cloud infrastructure Event DrivenHey there 👋 My name is Dimos and I am a lead backend engineer and software architect with almost 9 years of experience, who specializes in back-end development, software architecture, cloud infrastructure and microservices. I really enjoy creating projects that can be fun or that solve a problem. I am a person who works hard and always tries to learn something new. I love JS, TS, Rust, Kotlin and blockchain.- I am a Japanese full-stack developer who has mostly worked with JavaScript, TypeScript, Node.js, React, and React Native. With strong problem-solving skills and the ability to adapt to any given situation, I have been working in Japanese IT service and consulting companies with talented engineers since 2016, contributing to the development of outstanding solutions. On every project, my goal is to reach max efficiency, learn from every experience, and use both to improve the product. And my previous experiences also include setting up CI/CD pipelines and transforming monolithic codebases into microservices. In a nutshell, I enjoy challenges, self-improvement, and providing top services. With a strong attention to detail and accuracy and the important ability to function well in a team setting. Looking for a Full Stack Engineer Role within a forward-moving company.
Professional Software Engineer
Active 4 months ago - I've worked remotely and I really enjoy the freedom. I often end up spending more hours working as a remote member of a team. I also enjoy being part of small teams, it allows me to have a bigger impact. In terms of technology, I love using the proposed stack (Node w. Typescript, Postgres, etc..) but also looking forward to building interesting ideas in the crypto world.
TypeScript / JavaScript Engineer
Active 5 months ago - Professional Blockchain Engineer with more than 4 years of Rust experience in Solana, Substrate, Near and Elrond. Involved in startup founding, protocol architecture design and smart contract development.
Blockchain Engineer - Rust
Active 6 months ago Senior DevOps Engineer
Active 8 months agoGCP Kubernetes Linux SRE ELK stack Prometheus+Grafana PostgreSQL MySQL Docker Python Terraform Helm Jenkins Jira AWS CICD DevOps Grafana Git AWS EKSECS+ FargateDuring my career, I've had hands-on experience building complex infrastructure defined with code from scratch, building an efficient SRE team of up to 10 people from scratch, and accomplishing multiple complex migrations of legacy non-containerized workloads to Kubernetes. Now I want to develop my skills in the world of blockchain technologies. Skills: GCP, Kubernetes, Linux, SRE, ELK stack, Prometheus+Grafana, PostgreSQL, MySQL, Docker, Python, Terraform, Helm, Jenkins, Jira, AWS, CI/CD, DevOps, Grafana, Git, AWS EKS/ECS+ Fargate Highlights: - Migrated complex microservice solutions into Kubernetes in two startups. - Implemented ELK for logs aggregation. - Implemented Prometheus for active monitoring. - Created CI pipelines with a custom automated versioning scheme to fit Trunk Based Development branching strategy needs. - Managed a team starting from 2 people up to 10 people. Participated in hiring processes for all members of the team. - Evangelized and initiated the process of workloads migration to Kubernetes. - Introduced OpsGenie for incident management with On-Call rotations covering 2-time shifts. - Introduced Kanban processes. - Passed Professional Scrum certifications, such as PSPO I, PSD I, and PSK I.- I believe I have what it takes to fill the position. I have been building backend services since 2015 and have since then gathered immense knowledge on the golang programming language, including how to handle concurrency, prevent deadlocks, starvation and livelocks. I can expose APIs using grpc and I am well trained on microservice technology. I can also run a CICD pipeline through github actions to automate testing of the code on every pull request. I can build secure REST APIs, implementing Oauth and JWT. I have worked with companies such as Dropezy, Advantage Agency, Chatrice, Turn App Technologies and Veripro Inc, where I built their applications using RESTful web services, using best practices that I have perfected over time such as test-driven development, lean growth strategies and agile development. I have managed to create strong partnerships with the companies I have worked with as a result. I have extensive experience in packaging and deploying applications through the use of Docker and Kubernetes, and can deploy containerized applications to either AWS or GCP. I also ensure the repositories are well-handled and have experience in github, gitlab and bitbucket. Thankfully, at this point there is nothing much in this sphere that I cannot manage to do. I have effectively collaborated with teams all the way from India to build clean and robust code . We managed to use golang for the purposes of the project, deploying it to AWS using terraform for infrastructure as code. I have solutions architect level knowledge of AWS. I have C2 Level English proficiency and I am a fast learner who can pick up new technologies in as little as a few days. I also take deadlines seriously. I am excited to get your feedback and open to having a conversation whenever you are available. Thank you for your consideration.. Sincerely, PATRICE ANDALA
Senior Golang Developer
Active 8 months ago Backend & Blockchain Developer
Active 9 months agoAvailable now📍NepalBack-end & Blockchain Developer, tech enthusiast, software architect and tech researcher. I mostly deal with backend development with python, node js,web3 js, REST API, Microservices, data scraping etc. I have 3+ years of development experience in the backend.Devops Engineer
Active a year agoLinux AWS Azure Gitlab-CI Terraform Ansible Docker Kubernetes Helm Nginx HAproxy Envoy Istio MySQL PostgreSQL MongoDB Redis RabbitMQ Kafka Prometheus Grafana Loki ELK HashiCorp Vault Bash PythonIT specialist with over 6+ years of experience in Linux administration, network configuration, web services, virtualization, container orchestration, and microservices architecture and 3 years of experience in designing, implementing and maintaining available, fault-tolerant, scalable distributed systems. Experience in maintaining CI-CD pipelines, logging, monitoring, automating tasks, supporting mission critical services.- I'm a developer for 6 years. From 3 years ago I worked on crypto-currencies exchanges.
Senior Software Engineer
Active a year ago Solidity Engineer
Active a year agoAvailable now📍IndiaI have 12 year IT experience (Manual / Automation Testing), Agile/ Software Developer in Test. Gaming Domain. Blockchain platform & technology. SMART Contract (Solidity, ERC-20 & ERC-721, Truffle /Ganache, Metamask) Auditing Technique ,Vulnerability Mocha, Chai & OpenZeppelin Web3.js/ React.js/ Redux Basic knowledge of Infura & Heroku, Defi, DAPP, NFT Automation/Manual Testing (VB Script) NFT Marketplace Basic Knowledge of Layer2 solution – ZK Rollup Agile Methodology -Scrum/ Kanban / Mentorship / Microservices.Backend Engineer
Active a year agoAvailable now📍RussiaI'm back-end developer from Russia, Saint-Petersburg. I'm a community fan and really passionate about what I'm doing. Got interested in programming when I was just 14 years old. After some time, I've chosen backend as my development path because I passionate to explore how things work behind the scenes. Started with learning C# and its environment. Got my hands down into .NET framework, its infrastructure, and architecture, started seriously digging into concepts of how to develop backend services with approaches like monolithic, service-oriented, and microservices architecture. In my first job, I had the opportunity to get acquainted with the blockchain, which is still my passion and a place where I want to work and develop - ООО «Кошелёк.ру» - Fin-tech crypto-company - T4B - Fin-tech Forex trading company Projects and code-bases I’ve actively developed and supported: - https://koshelek.ru (ООО «Кошелёк.ру») - https://prizmbit.com/ru/ (ООО «Кошелёк.ру») - https://t4b.com/ (Tools For Brokers .Inc) Quick learner, opened for conversation!Devops Engineer
Active a year agoAvailable now📍Athens GreeceMy bachelor is in Economics, and boy, did I not like economics back then! Fortunately I loved playing video games and hack computers. When I discovered that you can write code and make the computer do things, I fell in love. I started making websites with PHP/JS/HTML/CSS until I got into QA Automation. Then, I started mingling with "The Cloud" in order to create DDoS attacks... and I fell in love with "DevOps" ! Now, I automate things in progressively bigger scale. Life is too short to make the same thing twice. Enjoying choreographic CICD, microservice clusters, cloud infrastructure automations and a good freddo espresso with Shinedown banging on my headphones :]- I have a great understanding and working experience of cloud infrastructure especially in AWS Cloud with hands-on experience with 30+ services. I have also worked with microservices architecture and containerized applications. In the past, I grabbed good experience in multiple programming languages with developing RESTful APIs and deploying applications via CI/CD practices. I have been continuously improving my skill sets with a never stop learning attitude and I follow the “dig first solve later” mindset to solving problems.
Staking Engineer (DevOps)
Active a year ago Frontend/Fullstack developer
Active a year ago📍Burlington, MAI am an aspiring blockchain developer with 6 years of fullstack web engineering experience helping companies innovate as they migrate to microservice AWS architectures while building out their test automation CI/CD pipelines. I also have an academic background in cybersecurity and a foundational knowledge of cryptography and Solidity. I am passionate about the crypto industry and spend many hours researching and actively participating in various protocols while staying up to date with its rapidly changing landscape.Software Engineer
Active a year agoMicroservicesC# .NET Core Java Spring Architecture Design Algorithms SQL SQL Server MongoDB JavaScript React Redux Webpack Docker OpenShift Octopus Bamboo Atlassian Test Driven Development Behavior Driven Development Object Oriented Programming Agile Scrum Scala Functional Programming HTML HaskellWorked on a team that developed new products as part of the company's innovation initiative, with technologies such as Java/Spring, C#/ASP.NET Core, and JavaScript (React/Redux), using containerization with Docker and OpenShift. Designed new features and patient-facing applications that implement user stories, ensuring code quality and maintainability through behavior-driven development and progressive refactoring. I have taken new products from an idea to a finished application, as well as redesigned existing monolithic applications into a modern architecture.Backend Developer
Active a year agoAvailable now📍Tbilisi of GeorgiaI have more than two years experience in an online exchange as a member of the backend team. Recently we made a token based on Ethereum platform like WBTC so I learned about Solidity and its concepts. I know about the consensus algorithms and blockchain fundamentals. As a system developer I know problems and challenges that we are encountering with them to implement a server. I implemented some microservices to handle each part of the server. I know about network programming and the ways that are useful to communicate between server and clients. I have experience with the following languages C++, Rust, Golang and Python. In addition, I can tell you one of my lovely challenges with databases in my current company. I and one of my colleagues designed and implemented our database in Postgresql. In this part we encountered some challenging problems to decrease the time of our queries. As you know it is hard to measure the query time and also there are many ways to implement the query. We generated some fake data to use in our query and tried to find a trade off way to achieve our result. It was very hard and I really enjoyed it. In general I like challenges and I am interested in spending my time to find a solution for unsolvable problems. I am a responsible, talented and reliable individual, with broad skills and experience in software engineering, in addition I am hardworking and always the last to leave the office in the evening. Furthermore, I am adept at handling multiple tasks on a daily basis competently and at working well under pressure.Senior Full Stack Web and Solidity Blockchain developer
Active a year agoNode JSAngular BootstrapSolidity Web3 Truffle Remix AWS CLoud EC2 S3 Lambda Microservice architecture.Been a Fullstack Web Developer for 22 years , started with ASP,PHP, moved on to C#, ASP.Net, Php frameworks then Discovered Node Js in 2015 and Angular, React etc , Started with Crypto 2 years ago and Trading actively then started learning Solidity programming and Web3, ethers ,Truffle ,Remix etc earlier this year .Very passionate about Defi and Gamefi and NFTS and love play to earn games and staking and Defi .Looking for a job where I can utilize my existing skills FullStack Web and learn and get more experience in Solidity ,web3 etc .Looking to grow and be part of an organization that will help me grow with them .Blockchain Developer
Active a year agoMicroservicesBlockchain Smart Contracts Ethereum Solidity web3.js ethers.js Truffle Hardhat JavaScript TypeScript Node.js Python React.js Vue.js Nest.js SQLNoSQL PostgreSQL MySQL BigQuery MongoDB Unix CLIs Terminal CICD Docker Git Google Cloud Platform Serverless architecture Advanced math Algorithms and Data StructuresObsessed with web3 & crypto space and looking for opportunities to grow in this direction. Developing software for 5+ years now. Experienced in web development. Quickly and easily mastering any new technology. I was born with what you call a ‘soft skills’. Never spend a day without learning something new. Love to work on something meaningful. Have a strong work ethic and principles. I like working in the flow and not being interrupted every half an hour. Good at setting goals and achieving them. Always asking myself if I am doing the most important task right now. Trying to ask the right questions. Usually, the most positive person in the room 😛- Hey there! The first thing I'd like you to know about me is that I'm fascinated with the crypto/blockchain ecosystem, and I am determined to make a career in this field. Not so long ago I joined Axie Infinity, mostly for learning purposes, and then I got so hooked that started building a side project to manage my Axie teams. From that point on, I started learning like mad. Right now, I'm doing a MIT course about blockchain, and also reading/watching the Ethereum resources. My next step would be to learn web3 in deep, so I can combine it with my frontend skills. Now that you know that at least you could expect from me to be a highly motivated person, I'll tell you why I think I can be a great fit for this job: - I have 5+ years of experience working as a full-stack developer. - I've been working with Javascript, Typescript and React since the start of my career. So this is the area in which I am more proficient. You can see my recent React Skill IQ in my Stackoverflow's profile: https://stackoverflow.com/users/story/8924381 - Even if the frontend constitutes one of my strengths, I don't have less experience building backend features. Through the years I've used many backend languages, such us PHP, Python, Java, Scala, and Ruby. I'm not afraid of learning new languages, I believe they are just tools to an end. - I'm a GraphQL fan, and I've been working with it even before I started my career (I used it at university, for creating the API for my final project, along with React too). And since that point on, I used it to built APIs with complex schemas (ecommerce platform, with lots of business rules). - I like software in general, and I like reading, so I try to always keep learning about software architecture in general. I couple of books I can recall: Building Microservices, The Pragmatic Programmer, Software Estimation Without Guessing, Shape Up, Domain Driven Design. I believe in life-long learning, so you can also expect from me to be a super curious person. - I have experience working with TDD. The current company I work for take testing and quality very seriously. - I'm conformable with taking ownership and leading. I've been doing it for both my current company. I was also the lead of a 6 people team, for a freelance project (ecommerce platform for a local retailer.) - And lastly but not less important, I strongly believe that team collaboration, and constant and precise communication is key to success. I like to build bonds with the people I work. Nothing more beautiful than sharing achievements with your people. I hope you see me as a good candidate, and if so, I'm eager to have a call, to do any test project, or whatever you see feet. Thanks in advance!
Senior Engineer - Full stack - Blockchain enthusiast
Active 1 years ago - I'm software developer with bachelors degree in computer science. I can help you to build a microservice, API, website, or integrate 3rd party APIs. Also, I'm familiar with Web3 technologies.
Software developer
Active 1 years ago Software Engineer
Active 1 years agoAvailable now📍SpainThe last 2 years I’ve been developing apps for the drone industry. The aim of this apps is to configure and operate with uavs. For this purpose I’ve work a lot with Java but also implemented infraestructure using Terraform in AWS. During 6 months in 2019 I’ve been building microservices in C# developing an architecture based in GRPC communication behind de proxy between the microservices. I’ve been working as a freelance web developer for 2 years (2016/2018), building websites in wordpress for clients, achieving leading creation increments thanks to A/B testing and behavior analysis tools. Also, managed APIs integration and Marketing Automation. I’ve been managing my own of t-shirts for 1 (2016/2017) achieving great social media exposure and collaborations with artists and designers with millions of people fanbases (Travis Scott, Kanye West, Asap Ferg, Matthew Williams, Nicola Formichetti). Selling in different locations from Asia to America. I’ve been collaborating with artists for a year in 2014 participating in events such us the Lisbon Architecture Triennale. During this period I acquired knowledge about the art world ecosystem in Europe. I’ve been studying Architecture for 6 years (2007/2013) acquiring great knowledge about art and client-centric product development.- Hello Thanks for reviewing my proposal. I’d like to work with you. As a senior web developer, i've lots of experiences in web development especially JavaScript Stacks, MERN, MEVN, MEAN. In details, about node.js, Express&Sequelize with MySQL, Koa&Knex with PostgreSQL, Express&Mongoose with Mongodb, Passpoart and GraphQL. About the front-end, senior experience in react.js(reducers, redux, redux-saga), Vue.js(vuetify) and Angular2+. And about the team-work, strong experience in Github/GitLab/Bitbucket, Trello/Jira and Slack/RocketChat. Especially blockchain/cryptocurrency In the blockchain, I've experienced in building MouseBelt blockchain explorer in BTC, ETC, and LTC. At that time, I've built the private key generator using mnemonic, sign, send transaction, as well as get transaction list for all type of operation. Also, I've experience with installing stellar(Stellar Core&Horizon Server)and have been part of team developing Smart contract, Coin Node API, Mobile node sdk, ICO/exchange development. Achievements: - Successfully build the blockchain nodes for ethereum, bitcoin, stellar, neo,etc. - Build REST APIs to access nodes functions. Responsibilities: - blockchain and cryptocurrency design and development. - token, smart contract development and audit - Backend development. - technology research To prove my skills, i'm ready to have a technical interview and test project. Kind Regards. Feng Liu
Blockchain Developer
Active 2 years ago