Hire the best
freelance JSON-RPC developers

Yury D.

Georgia

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Senior Freelance JSON-RPC Developer

Accomplished iOS Developer with over 25 years of experience in software engineering, specializing in mobile and blockchain application development for the past nine years. Enthusiastic about decentralized finance (DeFi) applications, I have effectively integrated advanced blockchain solutions into mobile platforms. Renowned for strong leadership and a results-oriented approach, I excel in fast-paced environments, adapting quickly to technological changes. My analytical skills and proactive learning attitude enable innovative problem-solving. Committed to excellence, I am driven to exceed expectations and continuously improve my professional skills.

JSON-RPCiOS • 9 yrsSwift • 7 yrsSwiftUI • 4 yrsSOLID Principles • 10 yrsC++ • 8 yrsBlockchain • 4 yrsTypeScript • 3 yrsCombine • 3 yrsGraphQL • 2 yrsSolidity • 2 yrsCore DataWebSocketRESTful APIAnimationEthereumCryptocurrencyCryptographyUIKitPdf generation

+16

André V.

Brazil

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Senior Freelance JSON-RPC Developer

I am an experienced iOS developer with a strong background in game development, banking applications, and open-source SDKs. I have successfully launched indie games and implemented features for a large banking app. I have also worked on IoT networks and video-on-demand streaming apps. I have a Bachelor's Degree in Digital Media and specialized in iOS development at the Apple Developer Academy. My strengths lie in strategic thinking, scalable applications, developer experience, human-computer interaction, and data-driven architectures. My skills include Swift, Objective-C, UIKit, and SwiftUI, among others. I am fluent in English and have intermediate proficiency in Spanish and instrumental proficiency in German. I have received awards for best business plan and pitch in university.

JSON-RPCXcode • 8 yrsiOS • 8 yrsSwift • 8 yrsUIKit • 8 yrsSpriteKit • 7 yrsRESTful API • 6 yrsObjective-C • 5 yrsWeb3 • 3 yrsWebSocket • 3 yrsSwiftUI • 2 yrsUnit TestingGLSLAVFoundationGameTestFlightGame DesignMusic ProductionJavaScriptCryptocurrencyCryptographyCore AnimationJiraCocoaPodsBankingMVP ArchitectureFigma

+23

Kalanamith M.

New Zealand

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Senior Freelance JSON-RPC Developer

Results-driven Engineering Manager with 13 years of expertise in technical leadership for software product development. Specializing in Blockchain, Rust programming, cryptography, and successful management of startup initiatives over the past 6 years **Skills** :- Rust, Cryptography, ED25519, SECP256K1, AES, Dilithium, P2P, Substrate, Ethereum, Distributed, Systems, Decentralised System Design, Python, GIS, PyTorch, Engineering Management, SSI, TypeScript, NodeJS, Linux, Docker, Agile Team Management, Start-up Scaling **Certifications :-** Agile Certified Practitioner (PMI-ACP), License 1826676 | Certified Scrum Master®, Scrum Alliance License 000467385 Certified Scrum Product Owner® Scrum Alliance License 00046738 | SAFe 4.0 Agilest Certificate ID: 59076929-0065 |Certified Blockchain Expert, License 13780927

JSON-RPCRust • 6 yrsBlockchain • 6 yrsAWS • 2 yrsPython • 9 yrsFlask • 6 yrsCryptography • 5 yrsSolidity • 1 yrsNode.js • 1 yrsSubstrateTypeScriptIdentity ManagementgRPCWebAssemblyQuantum computingQiskitCryptography EngineeringWebSocketMentoring

+15

youssef J.

Morocco

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Freelance JSON-RPC Developer

As a passionate DevOps Engineer with over three years of hands-on experience, I specialize in bridging the gap between development and operations to enhance software delivery processes. My expertise lies in implementing and managing continuous integration and delivery (CI/CD) pipelines, leveraging tools like Jenkins, GitLab CI, and TeamCity, Ansible to ensure efficient, error-free deployments. Key Skills & Technologies: * CI/CD Tools: Jenkins, Teamcity, GitLab CI * Containerization & Orchestration: Docker, Kubernetes * Cloud Platforms: AWS, GCP * Infrastructure as Code & automation: Terraform, Ansible * Version Control: Git * Scripting & Automation: Bash, Python * Monitoring & Logging: Prometheus, ELK Stack In my professional journey, I have focused on automating workflows, containerizing applications, and managing cloud infrastructures. My second year was a deep dive into Docker and Kubernetes, streamlining application deployment and scalability. The most recent year has seen me excel in cloud services and IaC, predominantly with AWS, and Terraform, ensuring high availability and optimal resource utilization.I am committed to fostering a culture of continuous improvement, collaboration, and innovation. My approach prioritizes security and compliance, ensuring the systems I manage are both robust and efficient. I am enthusiastic about bringing my blend of skills and experience to a dynamic team, where I can contribute to the development of cutting-edge solutions.In my professional journey, I have focused on automating workflows, containerizing applications, and managing cloud infrastructures. My second year was a deep dive into Docker and Kubernetes, streamlining application deployment and scalability. The most recent year has seen me excel in cloud services and IaC, predominantly with AWS, Azure, and Terraform, ensuring high availability and optimal resource utilization.I am committed to fostering a culture of continuous improvement, collaboration, and innovation. My approach prioritizes security and compliance, ensuring the systems I manage are both robust and efficient. I am enthusiastic about bringing my blend of skills and experience to a dynamic team, where I can contribute to the development of cutting-edge solutions.

JSON-RPCDocker • 3 yrsJenkins • 3 yrsLinux • 3 yrsAnsible • 3 yrsContinuous Integration • 3 yrsKubernetes • 3 yrsMicroservices • 3 yrsTerraform • 3 yrsAWS • 3 yrsDevOps • 3 yrsElasticsearchRabbitMQTeamHashiCorpASP.NETGitPowerShellMsbuildExploratory Data AnalysisCI/CDAngular 6

+18

Kshitij D.

United States

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Senior Freelance JSON-RPC Developer

Principal engineer and innovation leader with extensive expertise across enterprise and cloud software, hardware platforms, operating systems, memory and storage, distributed programming frameworks, machine learning, and microarchitecture. Focused on developing innovative software / hardware / AI-infused methods for optimizing performance, scalability, seamless hardware acceleration, and resource efficiency. Decades of experience in translating business requirements into software architecture, code development and integration, testing, and, optimizing from algorithmic to communication behaviors, and assembly level execution in enterprise and cloud scale deployments.

JSON-RPCPerformance Optimization • 10 yrsSoftware architecture • 10 yrsLeadership • 10 yrsOperating Systems • 10 yrsC++ • 5 yrsSQL • 4 yrsPython • 4 yrsMachine learning • 3 yrsJava • 3 yrsCLinux KernelSimulationLinux ContainersWeb ServiceTCP/IPPerformance TestingJava 8Performance EngineeringBashSSHSSL SecurityJava J2EEDevice Driver

+20

Arushi S.

India

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Freelance JSON-RPC Developer

I am Arushi Singhal, Software Engineer at Amazon. I have a keen interest in Algorithmic Problem Solving and have been programming for around 7 years now. I interned in Summer 2019 at Google as a Software Engineer. In Summer 2018, I did a Machine Learning internship at Robert Bosch Engineering and Private Limited, Bangalore, India (RBEI). I have multiple experiences of back-end development for large-scale systems. During my internships, I worked with Python and machine learning libraries in Python, Java, gRPC, Protocol Buffer, Google Guice and Google’s Internal Frameworks, Django, Ruby on Rails. I have also contributed to many open-source projects, including the Linux Kernel. I have submitted over 50 patches to kernel code. My other contribution to Open Source can be seen on my GitHub Profile. I am also passionate about mentoring and motivating people to contribute to open-source projects and was Google Code-In Mentor in 2017 for OpenWISP and Sugar Labs. I also worked as a Computer Science Instructor at CodeConnect, where we as an instructor ensure that our computer science education is accessible, empowering, and supportive for the next generation, and committed to our mission of increasing diversity in tech. In CodeConnect, I gave Python lectures to Pre-University students. I also used to be a Student Teaching Assistant and Research Assistant and I find teaching/mentoring extremely motivating - sometimes I'd get introduced to new interesting topics that I'd probably never think of finding out about on my own if it wasn't for the purpose of explaining it to someone else. Sometimes I'd get a completely new perspective on subjects I thought I knew when trying to find a way to present it to someone else. I'd really love to keep learning this way. One of the topics I'm always happy to talk about are the interviews - I've done a fair share of them, most of them in top tech companies and I would love to share what I've observed so far. I'm always up for tackling interesting interview questions, doing mock interviews or just giving resume tips (I got my interviews at Amazon, Facebook, Microsoft, Google and also at open-source communities without a referral, so I might help you with reviewing your resume to make it stand out. :)) Other than that, you can always reach out to me if you have questions related to Java, Python, R, Matlab, C, C++, Data Structures, Algorithms, SQL, GIT, Mathematics etc. I try to keep my knowledge and skills up to date and learn something new every day by helping you! Being a researcher, quick learner and having software development experience, I believe I am a good fit for mentoring.

JSON • 4 yrsSQL • 7 yrsJava • 6 yrsPython • 5 yrsMathematics • 15 yrsCoding • 12 yrsInterview Preparation • 9 yrsFaang • 8 yrsCoding challenges • 7 yrsTeaching • 7 yrsResume Writing • 7 yrsData structure • 7 yrsHTML/CSS • 7 yrsC++ • 7 yrsMATLAB • 6 yrsMySQL • 6 yrsGit • 5 yrsC • 5 yrsRuby on Rails • 5 yrsDjango • 5 yrsPyTorch • 4 yrsR • 4 yrsXML • 4 yrsBash • 4 yrsAWS • 3 yrsXSLT • 3 yrsInterview Skills • 2 yrsFull StackSoftware DevelopmentAlgorithmBack-EndPandasPython 3Python 2

+30

Umar J.

Pakistan

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Senior Freelance JSON-RPC Developer

Greetings! 👋 I'm a seasoned Software Engineer with over 7 years of hands-on experience. My technical expertise spans JavaScript, TypeScript, Node, React, and database management. I'm not just a coder; I'm a tech enthusiast who thrives on solving challenges and creating tech marvels. One of my greatest joys is helping individuals conquer intricate coding puzzles. This rewarding experience fuels my continuous learning journey. I'm deeply committed to upholding the highest standards of coding excellence, ensuring that each project I tackle is a testament to precision and innovation. Ready to turn your visionary tech ideas into remarkable solutions? Let's make it happen!

JSON • 5 yrsJavaScript • 7 yrsNode.js • 7 yrsReact • 6 yrsHTML/CSS • 6 yrsRedux • 5 yrsMySQL • 5 yrsBootstrap • 4 yrsPostgreSQL • 4 yrsMongoDB • 4 yrsMaterial-UI • 4 yrsAmazon EC2 • 3 yrsFirebase • 3 yrsTypeScript • 3 yrsNext.js • 2 yrsNestJS • 2 yrsGoogle Apps Script • 1 yrsBootstrap 4

+14

John A.

United States

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Senior Freelance JSON-RPC Developer

rust ruby fsharp linux docker sql ocaml prolog xml Concurrency, data, algorithms, networking. Being married and a father of teenagers has given me ample opportunity to become good at listening and helping. I love the way a person's eyes light up when they have an aha moment.

JSON • 15 yrsSQL • 20 yrsRuby • 18 yrsRust • 5 yrsSystem Design • 25 yrsPostgreSQL • 20 yrsLinux • 19 yrsC++ • 18 yrsGit • 11 yrsRuby on Rails • 9 yrsOCaml • 7 yrsProlog • 6 yrsDocker • 4 yrsRedis • 3 yrsZeroMQ • 3 yrsJulia • 1 yrsErlang • 1 yrsF# • 1 yrsElixir • 1 yrsPythonHTTPAzureRabbitMQGitLabWeb ServiceDigitalOceanDocker ComposeKeycloakXMLXPathOpenXML

+27

Roshan K.

Italy

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Senior Freelance JSON-RPC Developer

I am a Senior Engineer in Sapient's Milan office. I joined sapient in 2020 and have worked on several projects that encompassed the full mobile app development lifecycle. As a result of this work, I have valuable experience in defining, designing, implementing, and maintaining data-driven, object-oriented and service-based mobile applications for high-end clients. In addition to his industry and technical expertise, I also have proven skills in management of successful teams, both onshore and offshore.

JSON API • 4 yrsJSONMobile App Development • 5 yrsIonic • 3 yrsReact Native • 2 yrsHTML/CSS • 5 yrsAngular • 3 yrsJava • 3 yrsAndroid Studio • 3 yrsTypeScript • 3 yrsAndroid • 3 yrsC#Microsoft SQL ServerGraphQL.NET CoreFlutterHTML5Visual StudionpmJavaScriptApache cordovaIonic 4Angular 8APITestingMVVM

+22

David H.

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Senior JSON-RPC Developer

I am a senior/lead level software engineer with a passion for obtaining a deep understanding of problems in order to provide elegant solutions.

JSON API • 8 yrsJSONJava • 10 yrsRESTful API • 8 yrsSpring • 8 yrsObject-Oriented Programming • 10 yrsAlgorithm • 10 yrsApache Maven • 8 yrsSQL • 3 yrsAWS • 2 yrsGradle • 2 yrsJUnitRedisSpring BootMicroservices

+11