Senior Backend Engineer, Java

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;

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

About Teamix
Teamix is a platform connecting top-tier talent in blockchain and AI with innovative startups and companies building decentralized products. We’re looking for a Senior Blockchain Developer to join our network of experts, where you’ll contribute to the development of blockchain systems that bridge the gap between real-world assets and decentralized finance (DeFi). This is an exciting opportunity to work with mission-driven startups, bringing advanced blockchain solutions to scale.
Only apply here: https://www.myteamix.com/#/talent-ai-platform
Your Responsibilities
As a Senior Blockchain Developer, you will:
Design, develop, and implement secure blockchain systems to support innovative decentralized solutions.
Contribute to the development of private and public blockchain networks, including smart contracts, tokenization, and ledger management.
Collaborate with engineering teams across multiple projects to iterate and improve blockchain functionality.
Build and maintain backend services that scale efficiently to support decentralized applications (DApps) and blockchain-based platforms.
Participate in code reviews, ensuring the highest standards of blockchain security, accuracy, and performance.
Stay up to date with blockchain trends and technologies to enhance the architecture and features of projects.
Work closely with startups to ensure blockchain implementations meet business objectives and deliver verifiable trust in decentralized systems.
 
Key Requirements
3+ years of dedicated blockchain development experience, including expertise with Ethereum, Solana, and smart contract frameworks.
5+ years of experience building scalable backend services in languages such as Golang, Rust, Java, TypeScript, or Python.
Proven track record of delivering secure, high-performance blockchain solutions.
Strong understanding of blockchain consensus mechanisms, tokenization, and decentralized architecture.
 
Preferred Qualifications
Experience with private blockchain networks like Hyperledger, CordaR3, or DAML.
Knowledge of interoperability solutions between different blockchain networks.
Familiarity with zero-knowledge proofs and their applications.
Experience building decentralized applications (DApps).
Previous experience with Blockchain-as-a-Service platforms.
Why Join Teamix?
Teamix offers flexibility and the opportunity to work on impactful projects within a global network of Web3 and AI experts. You’ll collaborate with startups that are building cutting-edge blockchain solutions and help shape the future of decentralized finance, smart contracts, and more.
Apply here: https://www.myteamix.com/#/talent-ai-platform

Crypto Fundraiser Pool is a pioneering platform where blockchain technology meets charitable causes. We provide a seamless and secure way for individuals and organizations to contribute to charitable projects using cryptocurrency. Our mission is to ensure transparency, trust, and safety within the ecosystem as we revolutionize the fundraising landscape.
Role Summary
We are seeking a highly motivated and analytical Risk Analyst to join our growing team. The ideal candidate will have a strong understanding of financial risk management, particularly in the cryptocurrency space. You will play a key role in identifying, assessing, and mitigating risks that could affect our fundraising operations and broader crypto activities. This role demands a detail-oriented mindset, advanced analytical skills, and an ability to develop robust risk management strategies in a fast-paced environment.
Duties/Responsibilities
Identify potential risks related to cryptocurrency fundraising and investments, including market volatility, regulatory changes, and fraud.
Conduct in-depth research on risk factors affecting blockchain technology and the global cryptocurrency market.
Develop and implement risk assessment models to evaluate the financial impact of potential risks..
Monitor and analyze industry trends, emerging risks, and potential red flags to proactively mitigate threats.
Collaborate with cross-functional teams including legal, compliance, and finance to ensure the organization adheres to regulatory standards and best practicesDevelop contingency plans and risk mitigation strategies to safeguard the organization from unforeseen events.
Prepare comprehensive reports and risk assessments to inform key decision-makers.
Contribute to developing policies and procedures to enhance overall risk management frameworks.
Preferred Skills
Experience in developing risk models to evaluate financial exposure and the impact of potential risks on the organization
Knowledge of crypto wallets, transactions, and blockchain auditing.
Familiarity with cryptocurrency regulations, including anti-money laundering Anti-money laundering, Know your customer, and data protection laws.
Proficient with data analysis such as Python, R, Excel, or SQL to analyze complex data sets.
Ability to prepare detailed risk assessments, reports, and compliance documentation for the decision-making process
Experience using risk management software and financial tools
Education and Experience
Bachelor's degree in Finance, Economics, Risk Management, or a related field.
3+ years of experience in risk analysis, preferably in cryptocurrency, blockchain, or financial services.
Strong knowledge of blockchain technology, cryptocurrencies, and the crypto regulatory landscape.
Proven experience with risk management tools and financial modeling.
Excellent analytical, problem-solving, and critical-thinking skills.
Ability to communicate complex risks and strategies in a clear, actionable way.
Familiarity with regulatory requirements in the crypto industry is a plus.
Strong attention to detail and ability to work independently in a remote environment.
Additional Requirements or Expectations Specific to the Position
Certifications in risk management, blockchain technology, or related fields are a plus.
Familiarity with coding (e.g. Python) to automate data analysis and risk modeling is a bonus.
How to Apply:
If you’re excited about working at the intersection of finance, technology, and philanthropy, we’d love to hear from you. Please submit your resume and a brief cover letter to us explaining why you’re a great fit for the Risk Analyst position at Crypto Fundraiser Pool.
Join us as we make an impact with blockchain innovation!