Senior Blockchain Developer

We’re looking for Full Stack Engineer!
Основні обов'язки:
Develop and maintain scalable, responsive web applications using React.
Design and build cross-platform mobile applications for IOS and Android using React Native.
Implement backend services with a serverless architecture using AWS Lambda, DynamoDB, and other AWS cloud services.
Manage user authentication and authorization across web and mobile platforms with Amazon Cognito and IAM.
Optimize application for maximum speed and scalability while ensuring application security.
Automate and streamline operations and processes for code deployment using AWS Amplify and other CI/CD tools.
Create and maintain comprehensive documentation for the application code and AWS architecture.
Proactively monitor and manage AWS resources with AWS CloudWatch, responding to incidents and resolving issues as they arise.
Вимоги:
5 + years of front-end development web and mobile app development experience using React and React Native.
Minimum of 3 years of mobile app development experience using React Native.
Proven expertise in full-stack development on AWS, particularly with Amplify, Lambda, API Gateway, DynamoDB, S3, Cognito, CloudWatch, and IAM.
Strong proficiency in JavaScript, including DOM manipulation and JavaScript object model.
Solid understanding of RESTful APIs, and web markup, including HTML5 and CSS3.
Strong knowledge of serverless architecture principles and microservices patterns.
In-depth experience with state management libraries (such as Redux or MobX).
Familiarity with native build tools, like XCode, and Gradle (Android Studio, IntelliJ).
Experience with modern front-end build pipelines and tools.
Experience with automated testing suites
Ability to work within EST time zone
Бажані навички:
AWS certifications, especially AWS Certified Developer - Associate.
Previous work experience in a similar industry or with a similar platform.
Familiarity with GraphQL, AWS AppSync, and offline data synchronization issues.
Understanding of non-relational databases and document-based data stores

We are the software engineering company, established in 2002, with significant experience in system programming, cybersecurity, reverse engineering, SaaS/Web, blockchain-based solutions, and Artificial Intelligence.
Working with high-profile clients (including several Fortune 500 companies), we established high standards of software development, communication and effective teamwork.
We have headquarters in the US with offices in Poland and Cyprus and three R&D offices in Eastern Europe. Our team consists of more than 400 specialists, and we help tech companies around the world turn their challenging ideas into secure and viable products.
We are looking for a talented Middle Support Engineer (DevOps) to contribute to our innovative projects and ensure seamless deployment and operations of systems on the client's product.
Job description
It is an opportunity to work on a project with a leading fintech company specializing in the investment sector. Our team operates with a structured approach, adhering to predefined workflows for interactions, task handling, and issue resolution.
Key duties:
Act as a point of contact for Tier 1 engineers in the following capacities:
Providing guidance and supervision for technical choices and problem-solving efforts
Advanced troubleshooting of issues related to Linux, Kubernetes, AWS, file systems, and virtualization
Developing technical runbooks for common issues/tasks
Manage and oversee a hybrid datacenter and cloud infrastructure designed for high availability, including:
An infrastructure comprising server hardware, Linux and Windows OS, Kubernetes, AWS services, file services, backup solutions, and virtualization
Ensuring proper monitoring, logging, capacity planning, and reporting for systems and services
Automating system setups and regular maintenance and management tasks using tools like Ansible and Terraform
Maintaining system configurations to uphold their integrity as per defined standards
Participate in Daily Scrum, Sprint Review, and Sprint Retrospective sessions
Handle the team’s ticket queue by prioritizing and promptly addressing a wide array of requests and trouble tickets in a 24/5 environment, escalating when necessary to Engineering and Development teams
Apply effective project management practices for requirement definition, implementation, and documentation
Assist in transitioning from Windows to Linux infrastructure
Create and update comprehensive documentation
Contribute to infrastructure-related projects
Skills and experience we need:
Extensive professional experience with the technologies listed below 4 +years
At least 4 years of experience in Linux administration within an enterprise environment (preferably RHEL/CentOS based), with a focus on monitoring and troubleshooting
Hands-on experience with AWS Cloud infrastructure management and design, including knowledge of EC2, S3, IAM, AMI, CloudWatch, and CloudTrail services.
Solid understanding of infrastructure basics such as networking, authentication, file sharing, and core services like DNS, DHCP, and DFS.
Proficiency in automation, infrastructure as code, and configuration management tools (e.g., Terraform; Ansible, Chef, Puppet, or similar; Jenkins).
Experience in managing code changes using source control systems like GitHub or equivalent.
Experience with Kubernetes
Proficiency in at least one scripting or programming language, such as Shell, Python, PowerShell, or a similar language.
Demonstrated experience with server virtualization and consolidation technologies, specifically with VMware vSphere and ESXi Virtual Infrastructure.
English level – B2+
Nice to have:
Ansible knowledge
Basic knowledge of network switching, routing, and firewall technologies
Experience with CI/CD
Competence in handling server hardware solutions and optimizing their performance.
Perks and benefits:
Onboarding: Made for quick and effective adaptation to the company;
Remote work or hybrid work according to your needs;
Full-time working day;
20 working days of paid annual leave;
Paid sick leaves;
We provide the necessary equipment - a laptop, monitor, additional accessories;
Attractive salary adapted to your experience;
Career advancement and professional growth;
Еqual opportunity policies/ fair working practices;
Personalized learning approach (mentoring, internal courses, knowledge sharing);
Opportunity to develop your competencies - an experienced team, regular 1: 1 with a manager as well as development plan tailored to your needs;
High-profile customers;

我们的愿景
作为全球⼗⼤数字资产交易所之⼀（仍在上升🚀），我们在交易、安全 和区块链产品创新⽅⾯提供⼀流的服务体验。
我们的⽬标是让所有⼈都能参与到加密市场的建设中来，使得最前沿的、最有潜⼒的加密货币项⽬得以安全上线并交易。你有兴趣加⼊这样⼀⽀去中⼼化团队吗？
岗位职责
使用Go、Python等语言进行应用程序的开发、调试和维护，使用语言不限；
使用 AI 大模型进行相关需求的开发，实现服务的迭代和优化；
配合团队进行需求分析，参与系统设计和代码评审；
持续学习和研究新的技术，提升自身技术水平，并将新技术应用到实际工作中。
任职要求
计算机科学或相关专业的本科及以上学历；
实习生或1-3 年语言开发经验，有相关项目经验者优先；
具备良好的编程习惯，代码简洁、结构清晰；
具备一定的算法基础和数据结构知识；
思维活跃，具备良好的问题分析和解决能力；
对AI大模型有浓厚的兴趣，愿意参与并学习相关技术；
良好的团队合作精神和沟通能力。
Gate价值观
我们崇尚价值⾄上的原则，您的知识、愿景和⾃主性将在这⾥充分发挥， 我们专注于使⽤最好的产品和服务来赢得全球客户的赞誉，并将去中⼼化的理念带到世界各地。
我们的价值观包含正直、洞察、创新、求知与合作，在Gate.io ，我们致⼒于打造独特的Gate风格，并寻找与Gate.io价值观相契合的你。
我们的公司
Gate.io成⽴于2013年，是领先的加密货币交易所之⼀，在全球范围内提供 与多种领先数字资产交易相关的服务。Gate.io拥有超千万的注册⽤户，被认为是全球最安全和最可靠的加密货币平台之⼀。 Gate.io已经过区块链透明度验证，根据流动性和交易量 ，⼀直稳居全球⼗⼤加密货币交易所⾏列（CoinGecko）。

About Us
At DynamicX, we're revolutionizing the way sports enthusiasts invest in their passions. Founded by Nicolas Weiner, Tristan Reinthaler, and Gerd Weiner, our innovative platform merges the excitement of sports with cutting-edge financial technology.
Our mission is to empower sports fans to turn their enthusiasm into smart investments, transforming the traditional sports industry landscape. We believe that by combining sports enthusiasm with strategic financial markets, we can create new opportunities for both fans and athletes alike.
Our journey began with a simple idea: what if sports fans could invest in the very athletes and teams they cheer for? This sparked a movement to democratize access to sports investment and create a more engaging, interactive experience for sports enthusiasts worldwide.
At DynamicX, we're committed to innovation, transparency, and community engagement. Our team of passionate technologists, financial experts, and sports enthusiasts works tirelessly to develop cutting-edge solutions that bridge the gap between sports enthusiasm and smart investing.
Join us in shaping the future of sports investment and turning your passion into a career-defining opportunity.
Job Summary
We're looking for a talented Full Stack Engineer who excels in creating robust, scalable, and efficient web applications. You will play a crucial role in developing and maintaining our core platform, working closely with our cross-functional team to deliver high-quality features and improvements. Your expertise in both front-end and back-end technologies will be invaluable in shaping the future of sports investment.
Responsibilities
Design, develop, test, and deploy full-stack web applications using modern technologies
Collaborate with product managers, designers, and other engineers to understand requirements and create solutions
Implement scalable backend services using Node.js, Express, or similar frameworks
Develop responsive and performant front-end interfaces using React, Vue.js, or similar libraries
Integrate third-party APIs and services effectively
Optimize application performance and maintain high code quality standards
Participate in code reviews and contribute to improving team processes
Troubleshoot production issues and implement bug fixes promptly
Stay up-to-date with industry trends and emerging technologies
Requirements
Bachelor's degree in Computer Science or related field (or equivalent experience)
Minimum 3 years of experience in full-stack development
Proficiency in JavaScript (ES6+) and TypeScript
Experience with modern front-end frameworks (React, Vue.js, or similar)
Strong understanding of backend technologies (Node.js, Express, etc.)
Familiarity with databases (MongoDB, MySQL, etc.) and ORM tools
Knowledge of RESTful APIs and GraphQL
Experience with cloud platforms (AWS, Azure, or Google Cloud)
Version control experience with Git
Strong problem-solving skills and attention to detail
Excellent communication and teamwork abilities
Preferred Qualifications
Experience with blockchain technologies
Knowledge of sports-related APIs or platforms
Familiarity with cryptocurrency trading systems
Experience with automated trading systems
Understanding of tokenization concepts
Certification in cloud computing or DevOps
What We Offer
Competitive salary
Comprehensive health insurance package
Flexible hybrid remote work arrangement
Generous PTO policy (20 days annual leave + 10 paid holidays)
Professional development opportunities
Stock options in a growing startup
Access to cutting-edge technologies and tools
Collaborative and dynamic work environment
Opportunities for career growth and advancement

We are seeking a dedicated and detail-oriented QA Engineer to join our team focused on developing an AI-driven Social Authenticity Network. The ideal candidate will be responsible for ensuring the quality and reliability of our platform, which leverages artificial intelligence to foster authentic user interactions and mitigate fraudulent or inauthentic behavior.
1. Quality Assurance Strategy:
- Develop and implement comprehensive QA strategies and testing methodologies tailored to an AI-powered environment.
- Identify quality metrics and establish benchmarks for software performance.
2. Test Case Development:
- Analyze functional requirements to create and execute detailed test cases that ensure complete coverage of application features and AI functionalities.
- Continuously update and refine test cases based on evolving requirements and feedback.
3. Integration Testing:
- Collaborate with data scientists and developers to test AI models and algorithms, validating their predictive accuracy and ensuring they align with system requirements.
- Ensure integration points between various services and AI components function correctly.
4. Collaboration:
- Partner with cross-functional teams, including product management, development, and data science, to ensure quality is embedded within the development lifecycle.
- Actively participate in sprint planning and retrospective meetings to provide insights on quality improvements.
5. Continuous Learning and Improvement:
- Stay current with industry trends, tools, and methodologies related to QA and AI technologies.
- Propose and implement improvements to QA processes to enhance product quality and team efficiencies.
Why Join Us?
Join our innovative team to work on cutting-edge technology solutions aimed at promoting authenticity in social interactions. We offer a dynamic work environment, opportunities for career development, and the chance to make a significant impact on the way people connect online.
Location: Remote
Salary: Competitive salary based on experience
You can apply here: https://forms.gle/2eCpc4W6VDDQxoHg8