Blockchain developers have a strong mix of skills in the areas of computer networking, cryptography, and algorithms and data structures. But they also have experience with at least one specific type of blockchain, like that of bitcoin or Ethereum. It’s important to know whether you will build on existing open-source technologies: Only a rare few will succeed in making something brand new, but that’s often unnecessary.
Blockchain is a special database which gained popularity because of cryptocurrencies adopting it, especially bitcoin. Blockchain development is used together with cryptocurrencies to implement peer-to-peer (P2P), distributed services. Blockchain’s primary usage is large, public databases that are immutable—in other words, they can’t be tampered without spending massive amounts of resources.
Blockchain is spread across a world of cryptocurrencies and platforms for distributed applications. When you are looking for a blockchain developer to fill a specific position, posting a generic blockchain developer description in your job ad will bring applications from people who may only know bitcoin-like blockchains or only be proficient in Ethereum. Targeting the correct type of specialist is key to an effective job description.
Blockchain Developer - Job Description and Ad Template
Copy this template, and modify it as your own:
Company Introduction
{{ Write a short and catchy paragraph about your company. Make sure to provide information about the company’s culture, perks, and benefits. Mention office hours, remote working possibilities, and everything else that you think makes your company interesting. }}
Job Description
We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Your primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and the building and launching of a blockchain network.
Responsibilities
Research, design, develop, and test blockchain technologies
Brainstorm and help evaluate applications for new tools and technologies as they continually evolve
Maintain and extend current client- and server-side applications responsible for integration and business logic
Be involved in the global blockchain community—work on implementing and integrating the latest improvement proposals
Document new solutions as well as maintaining that of existing ones
Skills
Strong software development background
Experience working with large codebases
Experience working with open-source projects
Proficiency in one of the following languages: C++, Java, JavaScript {{ Depending on the project }}
Strong knowledge of common algorithms and data structures
Familiarity with basic cryptography
Familiarity with P2P networks
Strong knowledge of bitcoin-like blockchains
Strong knowledge of concurrency and writing efficient and safe multithreaded code
Strong knowledge of STL, C++11 {{ In the case of a blockchain based on C++ }}
Proficiency in the Qt Widgets module {{ Applies to projects where a GUI wallet application is needed }}
As blockchain technology continues to disrupt, blockchain-related jobs are flooding the market. How can you tell whether a candidate is a genuine match?
This guide provides a good base of blockchain interview questions, then helps you understand which types of blockchain professionals you'll need for your project.
Toptal is a network of top blockchain developers, engineers, and consultants. Top companies work with Toptal blockchain engineers to launch ICOs, write smart contracts, create Dapps, and more.
Coming from an Olympic background, Shota always enjoyed exciting and complex challenges. For years, he focused on learning algorithms, understanding data structures, and solving genuinely complicated problems. With years of experience in C++, C, Go, PHP, and JavaScript, Shota is looking forward to building and delivering outstanding solutions for your projects.
Boris has worked as a DevOps, SRE, and back-end software development engineer. He has a scientific mindset and 15 years of experience working with global startups. At Skype, Boris supported explosive growth while serving multiple roles like site reliability engineer, DevOps, and DBA. At Naga Group AG, Boris delivered scalable and secure trading infrastructure able to support a successful IPO and ICO for this fledgling fintech startup.
Nathan is a Cloud Architect, DevOps, back end, and data engineer with over ten years of experience in top Silicon Valley companies such as Google, LinkedIn, and startups. More recently he was the CTO of Tint.ai, where he built from scratch a fully automated, serverless, machine learning platform and inference API on AWS in Python. He is AWS certified and available for back-end development, DevOps, and Cloud architecture projects.
Ivan is an experienced IT professional with a unique combination of technical, consulting, and management skills. He's participated as an individual contributor (Python, Java, C#), consultant, architect, and manager on numerous projects of different sizes—from one-person shows to projects involving larger teams spanning globally. Ivan is also a keen open-source developer—contributing several smaller utilities and libraries.
Paul is a well-rounded full-stack developer passionate about developing quality software. He focuses on building products and his diverse skill set allows him to tackle any challenge. His preferred front-end technology is React, while on the back-end he has experience with Spring Framework and Ruby on Rails.
Faister is an experienced developer and system analyst who now specializes in JavaScript back-end development. He is comfortable working with many languages and platforms and has recently dedicated himself to developing back-end applications using Node.js, Express.js, and MongoDB. He also has some experience with blockchain technology and a master's degree in applied mathematics.
With over a decade in the software industry, Tadej has helped startups launch their first product, assisted FTSE 100 enterprises with digital transformation, been a part of the fintech boom, and helped particle accelerators cool down. He loves creating scalable back ends and is an expert in crafting modern and performant mobile, web, and desktop apps.
Felix is a mathematician (Ph.D.) and computer scientist by training, turned researcher in neuroscience and machine learning, and then turned entrepreneur (co-founder and former CTO at SF-based machine learning stealth startup). He currently works from Europe as an advisor to his own startup and as a freelance researcher, software engineer, data scientist, and trainer.
Satyanarayana is a senior software engineer with over eight years of experience working in various technology stacks and knowledge domains ranging from big-scale back-end systems to Android native apps. He is eager to take on new challenges and has done so with teams of all sizes and compositions.
Furkan is an experienced full-stack developer who has worked on various projects, including online payment solutions and fraud detection areas, in a well-known airline company. His expertise is shaped around Spring Framework, PostgreSQL, Redis, MongoDB, and RabbitMQ. In his projects, he uses Heroku Cloud. He's co-founded a startup to discover talents from the open-source community. After one year, Furkan successfully exited from his startup.
Rumen has eight years of experience in web development using JavaScript (React, Angular), Python (Django), and AWS. He has worked on a variety of projects at companies of all sizes. He has been an important problem solver in the teams and never failed to deliver quality work with his hard work and problem-solving skills. Rumen really cares about user-friendliness and the performance of your application.
