Job Description

Senior Back End Developer

Permanent

Responsibilities

• Developing cutting edge software solutions for startups and corporate clients
• Developing DApps (Decentralized applications) based on the Ethereum blockchain platform
• Working alongside other developers in your team and come up with solid and resilient implementations
• Engaging with clients to understand the product business proposition and make sure the code is aiming to that
• Developing smart contracts using Solidity
• Aligning with front end developers to build efficient JSON REST APIs to be consumed by React-based web and mobile apps
• Writing automated tests for Solidity smart contracts and NodeJS models and API code
• Reviewing other developers code in form of github pull requests
• Ensuring that the features you developed are deployed and working on staging and production environments

Required skills & experience

• 4+ years of professional backend development experience
• 2+ years of professional Node.js experience
• Experience in writing automated tests
• Experience with REST API design and implementation
• Experience with SQL and NoSql Databases.
• Basic understanding of Linux and bash
• Git knowledge (feature branches, github flow)
• Good teamwork skills

Additional desirable experience

• Knowledge of ES6+/ES2015+ (new features, specifically: Promises, Async/Await and Generators)
• Knowledge of how NodeJS work and how to write clean, resilient and performant code
• Experience in REST API development and best practices (testing, documenting, versioning, monitoring)
• Testing Framework experience (Jest, Mocha/Chai/Should.js)
• Docker experience (Docker, Docker Compose, Docker Swarm, Kubernetes)
• Terraform experience
• Cloud computing platforms: Azure, AWS (user roles / network configuration / VM deployment)
• Experience with EC2 Web Console and APIs
• Experience in React
• Blockchain knowledge - Bitcoin: bitcoin core software and rpc api, bitcoin js libraries, block explorer apis, op-return and timestamping. Ethereum: web3.js, setting up and running geth/parity nodes, solidity smart contracts, truffle.js
• HTML and CSS experience