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Arc helps you find and hire top freelance Blockchain Security engineers for your jobs. With 1,341 Blockchain Security programmers available for hire on a freelance basis, we have one of the largest network of vetted talent. Our Silicon Valley-caliber vetting process helps ensure that you hire freelance Blockchain Security developers and experts that you can trust.

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Hire Freelance Blockchain Security Developers and Engineers

Kaushik S, freelance Blockchain Security programmer
Kaushik S
India
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Senior Freelance Blockchain Security Developer

14+ years of overall experience in Cyber Security Solutions Delivery, Security Operations and Consulting. Specialized in Network Security, Blockchain Security, Application Security, incidence response, Vulnerability Management, Audit, Compliance, Risk Assessment, SIEM, Secure Software Development Life Cycle, Content Filtering and n-tier Security Architecture and Compliance.

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Dan G, senior Blockchain Security developer for hire
Dan G
Spain
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Senior Freelance Blockchain Security Developer

I'm a software engineer and teacher, passionate about bringing technology to people and using it to advance science, social impact and wellbeing. I've worked at such places as Google, Magic Leap and Trilogy and taught in Tel Aviv university, creating 2 novel courses and co-creating another one that ended up top rated in its category on EDX, with more than 100K students.

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Emir K, Blockchain Security programmer for hire
Emir K
Serbia
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Senior Freelance Blockchain Security Developer

I'm a seasoned software architect and developer located in Sarajevo, Bosnia and Herzegovina. With over 20 years of experience under my belt, I'm well-versed in everything from leading teams to flying solo on projects. I get a kick out of taking customer ideas and transforming them into something even better during the development journey. One of my specialties is identifying potential design flaws and refining user interfaces until user manuals become a thing of the past. My journey has taken me through a variety of roles and projects. I've done everything from software consultation and app design to data scraping, data mining, and full-stack development. Notable ventures include my work with the RapTToR agency, where I've developed large-scale systems, UI/UX enhancements, and marketing software. At Dare2Play, I took the lead on building an online crypto multiplayer gaming platform, managing game development teams, and architecting CI/CD setups. I've also lent my expertise to ventures like Goleudy Ventures, LLC, where I tackled image processing and created tools for image segmentation. I have worked with various platforms, languages, and frameworks. I'm well-acquainted with technologies like HTML5, PHP, Node.js, Python, Unity, Blockchain, and more. In the ever-evolving world of technology, I find myself constantly energized to take on new challenges and make innovative contributions. My goal is to not only meet but exceed expectations, and my extensive track record speaks for itself. Looking forward to the next exciting venture.

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Gimer C, Blockchain Security developer for hire
Gimer C
Mexico
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Senior Blockchain Security Developer

Experienced **smart contract** developer and consultant for the **Ethereum Blockchain** since 2019. Solid background in Information Security and advanced knowledge in different programming languages such as **Solidity**. Besides my Blockchain experience I hold a **Ph.D. in Computer Science** from Carleton University, Ottawa, ON. Canada granted in 2012. Looking forward to have a real impact in the space as a smart contract developer and blockchain security auditor.

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Ekpenyong O, Blockchain Security freelance programmer
Ekpenyong O
Nigeria
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Senior Freelance Blockchain Security Developer

Results-focused Solution Architect & Software Engineer with more than 6 years experience, in the oil/gas and blockchain industries. Excellent track record of managing various teams to meet clients’ job specifications, deadlines, and satisfaction. A good record of helping a company avert business foreclosure. Possessing soft skills like leadership, communication, teamwork capability, and diverse developer skill in mobile and full-stack technologies. Looking for a new challenging role within an organization to help clients implement solutions that meet global standards, leveraging existing skills, experience, and achievements.

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Zachary J, freelance Blockchain Security programmer
Zachary J
United States
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Senior Blockchain Security Developer

I have extensive experience in datastores and data pipelines; nearly 15 yr of work that included such. I also have worked on bigdata systems, where we ingested, minimally, more than 200 GB per day. I also have extensive experience in data, including personalization and financial data warehousing.  These kinds of targeting systems designs can become a revenue engine for many kinds of business models. My AI work to date as dealt with data prep, cleaning, structuring and segmenting/classifying, with prediction, recommendation, pricing, and retraining.  Applications included lead source QC, price/value prediction, and matching.  Other applications included regression modeling for attentional measures and content.  Other platform services included feature extraction (structuring) and data rollups with lineage. I’ve done this with financial accounts at MyBankTracker, where I built engines for pricing and personalization, as well as our own CDP / CIP, ad network and fingerprinting/unmasking platform. This was done with student loans, with Barker and LendKey.   I expanded to brokerage and other instruments at Investopedia - where I drove the data architecture of an immersive personal-narrative experience.  I also developed large data warehousing and CDP modeling at Even Financial.   Triple Point Liquidity involved such data in the form of KYC, and was transited via blockchain, compiling indexing time-series in private equity.  Suvie is an IoT company with personalization and e-commerce, consolidating a data warehouse that draws in realtime from more than 12 primary sources.

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Mostakimur R, Blockchain Security freelance coder
Mostakimur R
Bangladesh
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Senior Blockchain Security Developer

* Lead Software Quality Assurance Engineer with 17 years+ extensive and diverse experience. * Passion for QA testing of desktop, mobile, web-2 and web-3 applications using various frameworks, technologies, and tools. * Proven success in leading onshore/offshore teams through the full testing lifecycle to meet product specifications and complete projects on time. * Detail-oriented in analyzing business and product requirements, determining positive and negative flows, and identifying missing information. * Customer- and end-user-focused with strong data analysis and problem-solving skills. * Aspires to bring technical skillset to a new and challenging QA testing role in web and mobile app development with a focus on manual and automation testing for UI and REST API automation using Java, Selenium and and RestAssured.

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Andrei R, freelance Blockchain Security developer
Andrei R
Brazil
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Senior Freelance Blockchain Security Developer

\* 12 years of professional experience as a software developer \* Expertise: Python, Golang (open to learn new tech) \* ex-Verint Systems researcher (at Dutch office for 3.5 years) \* Holder of U.S. visa B1/B2 (for business trips) \* Active GitHub: Golang [https://github.com/AndreiRegiani/im2im](https://github.com/AndreiRegiani/im2im) [https://github.com/AndreiRegiani/txmond](https://github.com/AndreiRegiani/txmond) [https://github.com/AndreiRegiani/prettyrlp](https://github.com/AndreiRegiani/prettyrlp) Python [https://github.com/AndreiRegiani/termgram](https://github.com/AndreiRegiani/termgram) [https://github.com/AndreiRegiani/wikipedia-crawler](https://github.com/AndreiRegiani/wikipedia-crawler) [https://github.com/AndreiRegiani/IoT-weather](https://github.com/AndreiRegiani/IoT-weather) [https://github.com/AndreiRegiani/falcon-jsonify](https://github.com/AndreiRegiani/falcon-jsonify) [https://github.com/AndreiRegiani/falcon-mongo-template](https://github.com/AndreiRegiani/falcon-mongo-template) Creator of INim project [https://github.com/inim-repl/INim](https://github.com/inim-repl/INim)

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Omer C, Blockchain Security programmer for hire
Omer C
Netherlands
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Senior Freelance Blockchain Security Developer

Specialties **Software security:** black-box penetration testing, exploit development, reverse engineering, fuzzing, network protocol analysis, source code security auditing, intrusion detection, computer forensics, multi-platform development, short/long term red team engagements, APT simulations and TTP developments. Malware analysis: Tracing, unpacking, disassembly, and translation into high-level code. Blockchain Security: Smart contract audits, proof-of-concept/exploit development, cryptographic implementation reviews. **Hardware Hacking:** JTAG/SPI/UART/Onchip Debuggers, Logic and Power Analyzers, Firmware extraction/manipulation, Binary analysis Key technical skills Languages: C/C++, Python, Java, Rust, x86/x64 and ARM32/64 Assembly, Solidity, JavaScript Applications: MS Visual Studio, OllyDbg/ImmunityDBG, x64Dbg, IDA Pro, Ghidra, WinDBG, JEB, Radare2, GDB/DDD, MASM32 Editor, HxD/010 Editor, Visual Paradigm, Remix Operating Systems: Linux/Ubuntu, Mac OS X , Windows(XP/7/10/11) Hardware: RAID Disk Arrays, PCs, Peripherals, Network/Memory Cards, Oscilloscopes, Logic Analyzers, Bus Pirate, Shikra, Saleae, HackRF, Arduino Certificates : CEH, MCP, MCSE:S, MCITP, MCSA, ECSA, OSCP, OSCE, GREM

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FAQs

Why hire a Blockchain Security developer?

In today’s world, most companies have code-based needs that require developers to help build and maintain. For instance, if your business has a website or an app, you’ll need to keep it updated to ensure you continue to provide positive user experiences. At times, you may even need to revamp your website or app. This is where hiring a developer becomes crucial.

Depending on the stage and scale of your product and services, you may need to hire a Blockchain Security developer, multiple developers, or even a full remote developer team to help keep your business running. If you’re a startup or a company running a website, your product will likely grow out of its original skeletal structure. Hiring full-time remote Blockchain Security developers can help keep your website up-to-date.

How do I hire Blockchain Security developers?

To hire a Blockchain Security developer, you need to go through a hiring process of defining your needs, posting a job description, screening resumes, conducting interviews, testing candidates’ skills, checking references, and making an offer.

Arc offers three services to help you hire Blockchain Security developers effectively and efficiently. Hire full-time Blockchain Security developers from a vetted candidates pool, with new options every two weeks, and pay through prepaid packages or per hire. Alternatively, hire the top 2.3% of expert freelance Blockchain Security engineers in 72 hours, with weekly payments.

If you’re not ready to commit to the paid plans, our free job posting service is for you. By posting your job on Arc, you can reach up to 350,000 developers around the world. With that said, the free plan will not give you access to pre-vetted Blockchain Security developers.

Furthermore, we’ve partnered with compliance and payroll platforms Deel and Remote to make paperwork and hiring across borders easier. This way, you can focus on finding the right Blockchain Security developer for your company, and let Arc handle the logistics.

Where do I hire the best remote Blockchain Security developers?

There are two types of platforms you can hire Blockchain Security programmers from: general and niche marketplaces. General platforms like Upwork, Fiverr, and Gigster offer a variety of non-vetted talents unlimited to developers. While you can find Blockchain Security developers on general platforms, top tech talents generally avoid general marketplaces in order to escape bidding wars.

If you’re looking to hire the best remote Blockchain Security developers, consider niche platforms like Arc that naturally attract and carefully vet their Blockchain Security developers for hire. This way, you’ll save time and related hiring costs by only interviewing the most suitable remote Blockchain Security developer candidates.

Some factors to consider when you hire Blockchain Security developers include the platform’s specialty, developer’s geographical location, and the service’s customer support. Depending on your hiring budget, you may also want to compare the pricing and fee structure.

Make sure to list out all of the important factors when you compare and decide on which remote developer job board and platform to use to find Blockchain Security developers for hire.

How do I write a Blockchain Security developer job description?

Writing a good Blockchain Security developer job description is crucial in helping you hire Blockchain Security programmers that your company needs. A job description’s key elements include a clear job title, a brief company overview, a summary of the role, the required duties and responsibilities, and necessary and preferred experience. To attract top talent, it's also helpful to list other perks and benefits, such as flexible hours and health coverage.

Crafting a compelling job title is critical as it's the first thing that job seekers see. It should offer enough information to grab their attention and include details on the seniority level, type, and area or sub-field of the position.

Your company description should succinctly outline what makes your company unique to compete with other potential employers. The role summary for your remote Blockchain Security developer should be concise and read like an elevator pitch for the position, while the duties and responsibilities should be outlined using bullet points that cover daily activities, tech stacks, tools, and processes used.

For a comprehensive guide on how to write an attractive job description to help you hire Blockchain Security programmers, read our Software Engineer Job Description Guide & Templates.

What skills should I look for in a Blockchain Security engineer?

The top five technical skills Blockchain Security developers should possess include proficiency in programming languages, understanding data structures and algorithms, experience with databases, familiarity with version control systems, and knowledge of software testing and debugging.

Meanwhile, the top five soft skills are communication, problem-solving, time management, attention to detail, and adaptability. Effective communication is essential for coordinating with clients and team members, while problem-solving skills enable Blockchain Security developers to analyze issues and come up with effective solutions. Time management skills are important to ensure projects are completed on schedule, while attention to detail helps to catch and correct issues before they become bigger problems. Finally, adaptability is crucial for Blockchain Security developers to keep up with evolving technology and requirements.

What kinds of Blockchain Security programmers are available for hire through Arc?

You can find a variety of Blockchain Security developers for hire on Arc! At Arc, you can hire on a freelance, full-time, part-time, or contract-to-hire basis. For freelance Blockchain Security programmers, Arc matches you with the right senior developer in roughly 72 hours. As for full-time remote Blockchain Security developers for hire, you can expect to make a successful hire in 14 days. To extend a freelance engagement to a full-time hire, a contract-to-hire fee will apply.

In addition to a variety of engagement types, Arc also offers a wide range of developers located in different geographical locations, such as Latin America and Eastern Europe. Depending on your needs, Arc offers a global network of skilled software engineers in various different time zones and countries for you to choose from.

Lastly, our remote-ready Blockchain Security developers for hire are all mid-level and senior-level professionals. They are ready to start coding straight away, anytime, anywhere.

Why is Arc the best choice for hiring Blockchain Security developers?

Arc is trusted by hundreds of startups and tech companies around the world, and we’ve matched thousands of skilled Blockchain Security developers with both freelance and full-time jobs. We’ve successfully helped Silicon Valley startups and larger tech companies like Spotify and Automattic hire Blockchain Security developers.

Every Blockchain Security developer for hire in our network goes through a vetting process to verify their communication abilities, remote work readiness, and technical skills (both for depth in Blockchain Security and breadth across the greater domain). Additionally, HireAI, our GPT-4-powered AI recruiter, enables you to get instant candidate matches without searching and screening.

Not only can you expect to find the most qualified Blockchain Security engineer on Arc, but you can also count on your account manager and the support team to make each hire a success. Enjoy a streamlined hiring experience with Arc, where we provide you with the developer you need, and take care of the logistics so you don’t need to.

How does Arc vet a developer’s Blockchain Security skills?

Arc has a rigorous and transparent vetting process for all types of developers. To become a vetted Blockchain Security developer for hire on Arc, developers must pass a profile screening, complete a behavioral interview, and pass a technical interview or pair programming.

While Arc has a strict vetting process for its verified Blockchain Security developers, if you’re using Arc’s free job posting plan, you will only have access to non-vetted developers. If you’re using Arc to hire Blockchain Security developers, you can rest assured that all remote Blockchain Security developers have been thoroughly vetted for the high-caliber communication and technical skills you need in a successful hire.

How long does it take to find Blockchain Security developers on Arc?

Arc pre-screens all of our remote Blockchain Security developers before we present them to you. As such, all the remote Blockchain Security developers you see on your Arc dashboard are interview-ready candidates who make up the top 2% of applicants who pass our technical and communication assessment. You can expect the interview process to happen within days of posting your jobs to 350,000 candidates. You can also expect to hire a freelance Blockchain Security programmer in 72 hours, or find a full-time Blockchain Security programmer that fits your company’s needs in 14 days.

Here’s a quote from Philip, the Director of Engineering at Chegg:

“The biggest advantage and benefit of working with Arc is the tremendous reduction in time spent sourcing quality candidates. We’re able to identify the talent in a matter of days.”

Find out more about how Arc successfully helped our partners in hiring remote Blockchain Security developers.

How much does a freelance Blockchain Security developer charge per hour?

Depending on the freelance developer job board you use, freelance remote Blockchain Security developers' hourly rates can vary drastically. For instance, if you're looking on general marketplaces like Upwork and Fiverr, you can find Blockchain Security developers for hire at as low as $10 per hour. However, high-quality freelance developers often avoid general freelance platforms like Fiverr to avoid the bidding wars.

When you hire Blockchain Security developers through Arc, they typically charge between $60-100+/hour (USD). To get a better understanding of contract costs, check out our freelance developer rate explorer.

How much does it cost to hire a full time Blockchain Security developer?

According to the U.S. Bureau of Labor Statistics, the medium annual wage for software developers in the U.S. was $120,730 in May 2021. What this amounts to is around $70-100 per hour. Note that this does not include the direct cost of hiring, which totals to about $4000 per new recruit, according to Glassdoor.

Your remote Blockchain Security developer’s annual salary may differ dramatically depending on their years of experience, related technical skills, education, and country of residence. For instance, if the developer is located in Eastern Europe or Latin America, the hourly rate for developers will be around $75-95 per hour.

For more frequently asked questions on hiring Blockchain Security developers, check out our FAQs page.

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