Hire Top Blockchain Developers to Build Your Next Product

Our top-rated blockchain development teams are supported by a data-driven agile process. Growing companies rely on the DevTeam.Space for their most innovative projects.

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Startups from

Some of Our Projects

ModulTrade Product

On the platform, a Seller and a Buyer set up a Smart Contract and the buyer deposits funds to the Smart Contract. Once the physical goods have arrived at the destination, the funds are automatically transferred to the Seller.

For this ICO project, we provided the following services: website development (frontend, backend), admin panel, tokens, purchasing tokens by BTC, ETH, fiat.

modultrade.com

Medical Supply

Our dev team participated in the implementation of a solution to track and verify the authenticity of the medical products. The solution, using Blockchain technology, can help control the medical supply chain, eliminate corruption and provide additional instruments for consumers to validate the authenticity of the products. The platform we developed can be used by manufacturers, distributors, pharmacies, governments and consumers, who may remain anonymous.

Cloud Mining ICO

We have been creating the architecture, product website and ICO. The project is in the production stage.

Idea: tokens equal to share in mining capacity.

Company issues fixed number of tokens for ICO. The ICO lasts for 5 weeks. The company introduces a discounted rate for the period of ICO. Token capitalization has a direct correlation with the growth of the company's assets.

Cryptocurrency Exchange & Secure Cryptocurrency Wallet

The project is in production now, and our dev team is participating in the creation of all components of the system:

  • Real time exchange operations.
  • Fast working wallet.
  • High-security data storage and processing.
  • System architecture.

Technologies: Ethereum Solidity Truffle ES6 Node.JS React Web3 Symphony Bitcoin etc.

Intellectual Property Sharing and Verification

This software product gives intellectual property owners an end-to-end solution providing irrefutable, legally-bound proof of IP ownership by recording ownership in the blockchain. The overall goal is to replace the need for lawyers and/or patents when wanting to protect or share sensitive IP information with other parties.

Technologies: Solidity Truffle ES6 Node.JS Express React Web3

As seen on

What can be done with Blockchain?

Decentralized Cryptocurrencies

The most widely known use of blockchain technology is the cryptocurrency. Today there are over 1,300 different cryptocurrencies in use with more being launched every month. These cryptocurrencies allow for low-cost peer to peer transactions that eliminate the role of banks completely while at the same time being incredibly secure. The largest cryptocurrency Bitcoin, for example, has never been hacked, despite being a relatively simple protocol.

Prove ownership of assets

A really interesting use of blockchain technology is using it to record proof of ownership. Since blockchain is essentially an unalterable digital ledger, it can be used to record ownership of items or property. When smart technology is built into an item, blockchain can be used to prevent others from using it. Much like the lock on your phone, blockchain ledgers could be used to verify the rightful owners of property before allowing it to be used.

Smart Contracts

The Ethereum project is leading the way in the development of smart contracts. These contracts operate as peer to peer encrypted transitions between two parties. They don’t require any 3rd party involvement and can be used for everything from lending money to paying a gardener.

Issuing shares in a new company

The entire global financial market has currently got its eye on blockchain development. Blockchain technology is poised to revolutionize the financial markets. Due to its inherent security, it is the perfect mechanism to use when buying and selling shares. Since a ledger is created for each transaction, it all but eliminates the chance of fraud too.

Here at DevTeamSpace, our top blockchain dev teams have already created a number of really interesting applications with blockchain technology. Companies both inside the USA and abroad are desperate to utilize this technology to dramatically improve their existing systems and ways of doing business. This has led to a flood of interest in our blockchain developers for hire.

The Vital Guide to Blockchain Interviewing

“What the internet did for communications, blockchain will do for trusted transactions.” - Ginni Rometty, CEO of IBM

The recent explosion of cryptocurrencies such as Bitcoin has helped shine a light on a powerful new technology, known as blockchain.

Blockchain is a system of records, otherwise known as blocks. These blocks represent a continuously growing list that acts as "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way." - Harvard Business Review.

Most blockchains are managed by a peer-to-peer network and are secured using cryptography. Each new block links to a previous one to create a complete digital ledger that can be traced back all the way to the very beginning. This digital ledger contains a timestamp and other transaction data. Once created, this data cannot be altered and therefore gives the blockchain added security.

Why blockchain has the power to change the world

“When we have smart contracts on the blockchain, it can result in Decentralized Autonomous Organizations, or organizations without management or employees, run completely by code”. - Mark Van Rijmenam (Founder of Dataflow).

Or to put it another way…

“Instead of putting the driver out of a job, blockchain puts Uber out of a job and lets the taxi driver work with the customer taxi directly.” – Vitalik Buterin

Blockchain has already started a powerful worldwide revolution. Forget Bitcoin, the enormous potential of blockchain technology is only just starting to be realized. Currently, developers are racing to come up with exciting new ways to put this technology at the very heart of the global economy. Such is the potential of blockchain that some of the biggest companies in the world are currently heavily investing in the technology.

Probably the most famous single blockchain project being developed at the current time is Ethereum. The Ethereum Project has set about using this new technology to underwrite digital contracts that can be used by separate parties via a peer to peer network. The potential use of these contracts is almost limitless.

Individuals and companies could use these blockchain contracts for everything from labor exchange to storing registries of debts. Some of the many potential uses of blockchain technology include an electricity distribution network that allows home users to sell excess electricity they generate, a housing property ledger that helps speed up the process of sell a home, preventing money laundering, and even helping to improve food safety.

The potential size of the future blockchain industry is estimated to be in the tens of billions of dollars. It is therefore unsurprising that there is a gold rush going on right now as companies seek to exploit and develop this new technology in order to gain a slice of this lucrative pie.

But how can companies hire blockchain developers and make sure they get the best ones when they are in such demand? Well, the good news is that here at DevTeamSpace, we have already amassed a wealth of experience creating blockchain software, and all right here in the USA. We have already been through the process countless times and so understand the process back to front.

The potential size of the future blockchain industry is estimated to be in the tens of billions of dollars. It is therefore unsurprising that there is a gold rush going on right now as companies seek to exploit and develop this new technology in order to gain a slice of this lucrative pie.

To ensure that you get the best possible product, you will need to make sure that you hire the top blockchain programmers available. This is often something which is easier said than done, especially for inexperienced startup project managers who don’t have a strong background in software engineering.

So to help your company find the top blockchain specialist, we have put together DevTeamSpace’s ‘Vital Guide to Blockchain Interviewing’.

Blockchain developers for hire: How a good interview can help you find the best one

Finding an expert blockchain developer is never an easy task. During an interview, most specialists will promise the world and to guarantee to meet all your expectations. Sadly, in reality, things often turn out quite differently.

Poor quality code that leads to bugs and poor performance, missed deadlines, and a whole host of other development issues are just some of the nightmare scenarios that many project managers end up having to face on account of poor software developers.

Making sure that you really are hiring the best blockchain developer can be easy when you know how. The key is to make sure that you ask the all the right questions during the interview so that you can really be sure you separate the best from the rest.

What if I have no experience or background knowledge in interviewing blockchain developers?

No matter whether you are looking to hire developers for ICO or find Solidity developers for hire, a good interview technique can help plug the gaps in your knowledge and help you find just the person you are looking for.

Our guide will furnish you with all the questions that you will need to find that perfect programmer. Even if you are experienced in interviewing blockchain developers, it is certainly worth reading this guide to see if there are any helpful tips or questions that could help you in the future.

What Makes A Good Blockchain Developer?

This is really the million dollar question as they say. Since blockchain is still in its infancy, most project managers naturally assume that it requires special software engineers who have a unique set of skill sets and previous experience.

The reality is that though blockchain development does require specific understanding and knowledge of the technology, a great deal of the traits that make a good app or web developer, also make a good blockchain developer.

Here is our list of the best traits that make a great blockchain developer:

Passion, passion, passion

Without question, we have always found that passion is the fundamental driving force of a great blockchain developer. The more passion a developer has for your project the better. Passion will keep them focused better than a dozen cups of coffee and is key to making sure that you get the final product that you have invested so much into.

Experience

Blockchain development does require a reasonable level of experience. The reason for this is simple; blockchain systems are usually quite sophisticated and are increasingly required to interact with other programs. A blockchain developer will also be required to have a good understanding of cryptography, something that the average software programmer does not.

Good Attitude

While a good attitude is important in any worker, for a software developer, it is essential. Since a large part of developing a program, app, or piece of blockchain software involves working individually, it is vital that your developer has a good attitude and approach to working in a team.

All software development projects are evolutionary. This means that your project will inevitably change as you go along. Any experienced developer will know this and will be able to help you plan and design changes as smoothly as possible.

Unfortunately, there are a few developers out there who after years of working in the industry have developed more than a few undesirable character traits. Such individuals might be resistant to change and resent being asked to do things in a way that they don’t approve of.

A developer with a bad attitude can cause costly project overruns and make the whole process of developing blockchain software really unpleasant. So make sure you find a blockchain software developer who has a good attitude and can work well as part of your team.

Always meets deadlines

While this is worth mentioning, it really is a no-brainer. The word ‘deadline’ is deliberately meant to sound scary to stress the importance of meeting them. Since any custom blockchain development project will be split into multiple bite-sized parts, the need for the whole team to meet the deadlines imposed by the project manager is vital to the project’s success.

How can you ensure that a blockchain developer will always meet deadlines? Check out our interview questions below to find out.

Able to visualize the final product

A good software developer will be able to visualize in 3-dimensions the product that you are asking them to create. This is an ability that comes from a mixture of experience and talent. It can have enormous benefits to the project as the developer will be far better placed to create realistic timeframes for stage completion. Also, they will be able to flag up any potential problems before they happen, something which will help you plan how to either avoid or overcome them.

What Makes A Good Dev Team?

Finding a good dev team to undertake your project might seem like an easy challenge at first glance, especially since most promise the world on their websites. In general, the traits that make a good developer will make a good blockchain dev team too. Passion, knowledge, experience and the ability to always meet deadlines are fundemental to the project’s success.

As it is a comprised of a group of individuals working together, a dev team will also require a good internal communication structure. Central to this is a competent, adaptive, and communicative project manager who is able to plan and delegate work while coping easily with any problems that may surface.

The project manager should be in regular contact with the client to ensure they remain fully abreast of any developments. The dev team should also submit weekly reports regarding the progress of the project. Finally, a good dev team will always respond to any queries quickly and efficiently with all the appropriate information.

All of these factors are vital in a dev team to ensure that their clients receive the best possible return on their investment.

How to Use Your Interview to Identify Top-Level Developers and Dev Teams

We have broken the following interview questions into 2 separate sections depending on whether you intend to hire a blockchain developer or a whole dev team. You may choose to stick to our question format or pick and mix. This is entirely up to you.

List of questions that will help you find that perfect programmer:

  • In ascending order, what are the top 5 most important things that make a great programmer?

This will give you an insight into how the candidate regards themselves and their profession. Remember, passion should always be in there somewhere.

  • How many blockchain projects have you worked on over the last 3 years?

This will give you a better idea of their background. Pay attention to the number of projects as this will give you a clearer picture of their workload. This is important as a developer with too many projects on the go at once might not be as effective at meeting deadlines. This question should prompt your candidate to volunteer information that allows you to see what similar projects they have completed that will give them more relevant experience for your project.

  • How would you be able to tell that you were going to miss an upcoming deadline? How long before the event could you tell this was going to happen?

Should give you a good idea about their honesty and ability to meet deadlines.

  • Tell me about the worst Blockchain project you have been involved in and what your specific role was?

Gives you a chance to see how candidate dealt with problems/frustrations.

  • If you were to become a project manager tell me one thing you would do to improve the way your developers work?

This accesses creative thinking/problem solving as well as exposing candidates frustrations on past projects. If their answer focuses on poor project management, for example, then this is an area that you know to be aware of should you go ahead with them.

  • What was the last blockchain forum question that you answered and how did you solve the problem?

A good question to find out how involved candidate is in the developer community in his/her own spare time. Because this is an open question it should prompt them to turn the answer into a positive even if they haven’t been active on a forum.

  • What one question would you ask if you were interviewing for a blockchain developer and wanted to assess their suitability for your project?

When asked this kind of self-reflective question, candidates are tested for honesty and quick thinking. The idea of this question is not to let themselves get caught out by it but to come up with a clever way of separating the best developers from the average. Since the candidate can expect to be asked their own question, there is added pressure in this task. Try it out, you will find the more imaginative candidates come up with some pretty interesting questions.

  • What are your future commitments should I offer you the chance to work on my project?

This is a very important question. Making sure that your new developer is not swamped with other projects and so can focus on yours is imperative.

Knowledge specific questions:

  • How would you define the blocks in blockchain technology?

Blockchain is a digital ledger of financial and other transactions. Each block is the result of a transaction and adds on to the last to form a blockchain (A good candidate will expand more and give examples).

  • Name the 3 most common types of ledgers that are used as part of Blockchain?

Centralized ledgers, decentralized ledgers, and distributed ledgers.

  • Why is blockchain so advantageous over existing systems?

Due to cryptography, Blockchain is a very secure way of undertaking transactions. Also since blocks, once recorded, cannot be altered, the ledger is permanent. This helps to prevent fraud or other such activities.

  • Can individual blocks be removed from the blockchain?

In general, blockchain technology will resist blocks being removed. While it is possible to remove blocks, the process does require quite a bit or work and often the agreement support of the development community. It is not possible to alter blocks without altering others in the sequence.

  • What do you know about block security?

This is the chance for a candidate to impress on you their in-depth knowledge. Answers can range from a general overview to specific examples of certain blockchain technology currently in use.

  • What do you know about blockchain encryption? Give an example of where you have been involved in this in the past?

This is a good question that tests a candidate’s background in the all-important encryption side of things.

  • What kind of information can be written into a blockchain?

Pretty much anything – candidate should give examples.

  • What is a blind signature and how can it be beneficial?

A blind signature is a digital signature that in essence hides certain block information before it is signed. This is a vital part of the overall security of blockchain as it helps with cryptography. Blind signatures are really important in cryptocurrencies, for example.

  • Name the main steps that are an essential part of blockchain project implementation?
  1. 1

    Requirement identification

  2. 2

    Screening ideas for consideration

  3. 3

    Project development for blockchain

  4. 4

    Security study

  5. 5

    Implementation of the blockchain

  6. 6

    Ongoing monitoring of the project

Test the candidate

Once you have found a candidate that you like, you should give them a test to make sure that they are as good as they say they are. If you don’t have much of a background in programming then never fear, you can use resource sites such as StackOverflow and Test4Geeks, both of which will provide tests for you.

Where to Find the Best Developers?

Interview Questions/Answers to Identify Top-Level Dev Team

  • With 1,000’s of dev teams in the marketplace, how have you made yours stand out?
  • Do you regularly monitor their job success rate, if so how?
  • What was the last process management improvement you have made?
  • Outline the list of industries you worked with (for example – healthcare, e-commerce, etc.) with 1-3 project examples per each industry
  • How much experience have you had with blockchain development?
  • Can you tell me about a few examples of the blockchain technologies you have developed?
  • How many blockchain developers do you currently employ? – How do you cope when they get stretched?
  • Do you have any references regarding past blockchain projects?
  • Do you feel your dev team have all the requirements and passion to get my project completed successfully?
  • What are your hourly rates?

What's The Difference Between Working With A Top-Level Dev Team Vs. Individual Developer?

Individual developers are a godsend for those startups and small businesses that have to keep costs down but still need to get their blockchain software completed. Many such individuals are also employed by larger companies as freelancers in order to fill gaps relating to their in-house teams. The reasons for this might be to temporally boost their staffing levels or to plug gaps in knowledge or expertise relating to a specific aspect of software engineering.

Despite their usefulness in these situations, an individual developer is no match for a professional dev team. A good dev team brings a number of key advantages to the table.

Firstly, a dev team is able to be much more flexible regarding all aspects of the project, including adding large additional features that were not part of the original plan. It is able to do this because a large team of software engineers is able to cope with spikes in their workload, provided the team is well-managed, of course.

In these teams, work can simply be delegated out to whoever has the appropriate skills and time to do it. If the existing team of developers becomes overloaded, other engineers can be brought in off other projects to cope with the emergency. This is something that an individual developer simply can’t do.

A good dev team will have an efficient project management system that allows the whole team to be kept up to date on how the project is progressing and what stages are coming up. This system also keeps the client in the loop by providing them with all the appropriate updates via a reporting system.

Regular meetings within the dev team will help to reduce the chance of problems arising from misunderstandings, while the ability to pool their collective expertise will ensure that solutions can be found to even the most difficult problems.

For these reasons there is simply no substitute for a well-run dev team. So if you are looking for the best way to develop your new blockchain technology, then you should hire a great dev team to make sure the job gets done right.


Our Expertise

Our dev teams have a strong tech background that covers a wide range of programming languages, frameworks, deployment technologies, and cloud platforms. We have amassed deep knowledge around blockchain development best practices. We have experts in load balancing and replication, UI pattern libraries, caching and resource management, testing and deployment, caching and content delivery networks, failover and online recovery.

Blockchain (Ethereum), Smart Contracts (Solidity), Truffle, Web3, ERC20 Standard
PHP4-7, HTML, HTML5, CSS3, JavaScript, TypeScript, REST, AJAX
ES6, jQuery, AngularJS, NodeJS, ReactJS
Symphony, Laravel
SASS\SCSS, LESS, Bootstrap, Foundation Framework
WordPress
Google API, Facebook API, Google maps, Apple Push Notification
PayPal, Stripe, Bluepay
MySQL, sqlLite, MongoDB, PostgreSQL
Amazon Web Service (EC2, ROUTE 53, CloudFront, S3, RDS, Elastic Cache, SES)

How DevTeam.Space Works

1
Tell us about your challenge & get a free strategy session

Submit a project. Your dedicated tech account manager will then contact you to assess your needs in detail and answer any questions.

2
Get a perfect match & roll out the project within days

A team of field-expert engineers is assigned to your project according to your needs. Once approved, we set up the process and get started.

3
Stay on top of your project & track progress in real-time

Our data-driven agile process ensures a consistent delivery on your project weekly sprints. It is transparent and provides you with regular updates and roadblock tracking.

4
Get the highest ROI with Zero Risk

Achieve your goals with minimum hassle, maximum ROI, and zero risk. We'll hold your payment until you are 100% satisfied and all agreed tasks are completed.

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