Your trusted source for top remote Blockchain security developers, engineers, expert programmers, freelancers, and consultants in Brazil — Perfect for startups and enterprises.
Freelance contractors Full-time roles Global teams
Vetted Blockchain security developer in Brazil (UTC-3)
\* 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)
Vetted Blockchain security developer in Brazil (UTC-3)
**I am an expert developer in React-Native. I have a BA in Computer Science. I started as a full stack developer working with backend, web, and mobile with ReactJS, RN, and NodeJS. In addition, I created and led several projects in various fields, for example:** \- Food delivery \- Marketplace for Sales NFT on Solana Blockchain \- Marketplace for Sales clothes \- Dashboards \- White labels \- Stream \- Social network for health \- Scheduling service \- Monitoring of the elderly with BLE and among others. **I've used several languages and technologies including:** \- React Native \- React \- Nodejs \- Java \- JS \- Typescript \- Flutter \- Ios \- Google Cloud **But for the last few years, I've been focusing 100% on REACT NATIVE and LEADERSHIP.** **And as a LEADER my mission is to help juniors unlock some activities and guide them. PR review, structuring the project with an architecture. Task prioritization together with the product and design team. And some tasks add like interviewing candidates and among other things**
Blockchain security developer in Brazil (UTC-3)
Multi-skilled product and project manager with excellent supervisory and technical expertise. Practical knowledge for managing complex systems based on experience gained from developing, testing, transitioning to production, and operating fault-tolerant, highly scalable cloud-based mission-critical systems, and project management practice. Ability to assemble, manage and motivate development teams. Entrepreneurs with a leadership spirit try to anticipate problems to mitigate their effects. Extensive experience in integrating legacy systems, enterprise architecture, and logistical process automation between mobile collectors, RFID, and voice with CRM and ERP with Cybersecurity and Scalability skills. Deep experience in quality tools, product development methodologies, and services in business support systems. Application of ITIL and COBIT reference models best practices in design and service management and experience with PMBOK, PRINCE2, and agile project management practices. Solid expertise in systems development, infrastructure, telecom, web, and cloud computing, as well as budget management of the IT department based on Lean IT concepts and experience in defending budget proposals to the board of directors and referring directly to the board of directors. Practice negotiating with customers and foreign suppliers, with over 20 years of experience in IT. I am looking for a challenging agile project management position that will best use my existing skills & experiences and further my personal development.
Blockchain security developer in Brazil (UTC-3)
I'm a Senior Full Stack Engineer with 6+ years of experience using technologies such as JavaScript, Python, Golang, React Native and Flutter. I led the development of a 2FA authentication for an Internet Banking platform which reduced 70% of the fraud incidents providing customers a safe experience using the Web Platform. I have an entrepreneurial minset and enjoy challenges and creation of great products and experiences, now I am focusing on develop even more my capacity to mentor and evolve others around me.
Vetted Blockchain security developer in Brazil (UTC-3)
I’m a Software Engineer with 12 years of experience working with Java (6 years in bank industry with Java/Spring Boot stack). My current work at Santander, and the last was at eBay. I'm looking forward new challenges.
Vetted Blockchain security developer in Brazil (UTC-3)
I'm a QA Engineer with almost 5 years experience as QA Engineer, helping to automate the tests from ground up a product from IBM. I also have previous experience as a Full Stack Web developer(.NET/React). Proficient in automating API, UI, and unit tests, along with manual testing procedures. Skilled with Cypress, Playwright, and Junit/TestNG. Recognized for clear communication, active involvement in feature development, and proactive problem-solving to streamline workflow and enhance team productivity.
Vetted Blockchain security developer in Brazil (UTC-6)
Results-driven Software Engineer with extensive experience in developing and maintaining robust Client-Server and Web applications. Proficient in Java and a wide array of cutting-edge technologies. Experienced in diverse development lifecycle models, including the Waterfall Model and Agile Methodology. Complemented by a solid foundation in cloud technologies, including Microsoft Azure and Amazon Web Services (AWS). Dedicated, creative, and result-oriented, with a proven track record of architecting and delivering efficient, scalable, and performance-driven solutions.
Vetted Blockchain security developer in Brazil (UTC-3)
I´m a experienced Software Engineer with a demonstrated history of working in industry services and information technology. Skilled in strategic planning, development patterns and agile methodologies. Engineering professional with a Master of Computer Applications (M.C.A.) focused in software development and scalable technologies.
Vetted Blockchain security developer in Brazil (UTC-3)
Experienced Entrepreneur, Technical Leader, and Software Developer with over 20 years in the industry. Holds an MSc in Computer Science with a focus on Artificial Intelligence and a B.S. in Computer Science. Demonstrated expertise in full life-cycle development, Blockchain, and AI applications. Skilled communicator with a passion for problem-solving and information systems. Seeking opportunities to leverage a comprehensive background in software development and leadership. Blockchain: Web3, Solidity Development Languages & Frameworks: HTML 5, CSS, JavaScript (ES6, JQuery, Node.js, AngularJS, ReactJS), Java, J2EE, Kotlin, GO Cloud Platforms: Google Cloud Platform, AWS Databases: Oracle, PostgreSQL, MySQL, SQL Server, REDIS, Google Cloud DataStore, BigQuery, DynamoDB, MongoDB DevOps: Puppet, Chef Script, Docker, Kubernetes Software Management: Agile projects (Extreme Programming and Scrum), TDD, BDD, Continuous Integration (Jenkins, Travis, GitHub Actions)
Vetted Blockchain security developer in Brazil (UTC-3)
Hi! I'm an engineer with 14+ years of professional programming experience in machine learning, finance, numerical methods and app/api development. I've worked with startups, well regarded hedge funds and a number of companies as a consultant over this time. I have a wide range of experience with (not limited to) low level/GPU programming (OpenCL/CUDA/C99/C++/ASM), web/api development and machine learning.
Discover more freelance Blockchain security developers today
Meet freelance Blockchain security developers who are fully vetted for domain expertise and English fluency.
Stop reviewing 100s of resumes. View Blockchain security developers instantly with HireAI.
Get access to 450,000 talent in 190 countries, saving up to 58% vs traditional hiring.
Feel confident hiring Blockchain security developers with hands-on help from our team of expert recruiters.
Share with us your goals, budget, job details, and location preferences.
Connect directly with your best matches, fully vetted and highly responsive.
Decide who to hire, and we'll take care of the rest. Enjoy peace of mind with secure freelancer payments and compliant global hires via trusted EOR partners.
Ready to hire your ideal Blockchain security developers?
Get startedArc offers pre-vetted remote software developers skilled in every programming language, framework, and technology.
Look through our popular remote developer specializations below.
Arc helps you build your team with our network of full-time and freelance Blockchain security developers worldwide.
We assist you in assembling your ideal team of programmers in your preferred location and timezone.
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 engineers, 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.
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 developers 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 450,000 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 developers for your company, and let Arc handle the logistics.
There are two types of platforms you can hire Blockchain security developers 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 developers.
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.
Writing a good Blockchain security developer job description is crucial in helping you hire Blockchain security developers 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 developers, read our Engineer Job Description Guide & Templates.
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 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.
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 developers, 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 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.
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. 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 developer 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.
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.
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 450,000 candidates. You can also expect to hire a freelance Blockchain security developer in 72 hours, or find a full-time Blockchain security developer 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.
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.
According to the U.S. Bureau of Labor Statistics, the medium annual wage for 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.