DevBrother

We are helping to develop an innovative booking solution focused on creating an advanced online platform for booking participation in exhibitions and festivals across the United States. The system is modern, equipped with numerous innovative features, and integrates various third-party services for payments and booking additional event options. 

We seek a skilled Webflow developer interested in working in an innovative and startup environment. You will collaborate closely with the Head of Product and the development team to create a seamless and engaging user experience.
 

You will be part of a fast-growing start-up environment and working closely with the Head of Product and our development team.

Requirements:

• Upper-Intermediate English or higher
• 2+ years of experience building and maintaining websites using Webflow.
• Proven experience integrating third-party APIs and services into Webflow projects.
• Strong understanding of responsive design principles and cross-browser compatibility.
• Proficiency in HTML, CSS, and JavaScript (familiarity with Webflow's custom code functionality is a plus).
• Knowledge of React/Node or other framework will be a huge plus.
• Experience with version control systems (e.g., Git).
• Excellent problem-solving and debugging skills.
• Experience working within a startup environment.

Responsibilities:

• Develop high-quality, responsive Webflow websites and templates aligned with our brand guidelines and user experience specifications.
• Collaborate closely with the Head of Product and the development team to translate designs and wireframes into functional, pixel-perfect Webflow implementations.
• Integrate third-party services (payment gateways, APIs, etc.) into the Webflow platform.
• Troubleshoot and debug Webflow applications, ensuring optimal performance and user experience across various devices and browsers.
• Optimize Webflow sites for speed and SEO.
• Maintain and update existing Webflow projects.
• Participate in code reviews and contribute to improving our development processes.

We offer:

● Daily support for your technical and personal growth;

● Professional and very friendly team, that is always ready to help and support;

● Medical Insurance;

● Flexible working hours;

● All official holidays;

● Paid vacations and sick leaves;

● Legal services and 24/7 lawyer protection;

● The company provides all the necessary equipment;

● Fitness support upon request;

● English classes up to three times a week;

● The company pays 50% of the cost of refresher courses for any employee of the company;

● Workstation space;

● Mentoring and Educational Programs;

● Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

● Advanced Bonus System.

Our client specializes in building Crypto, Web3, and various White-Label Solutions. We are a rapidly growing organization offering a dynamic and challenging work environment.  This is an excellent opportunity to gain hands-on experience in the exciting world of cryptocurrency and decentralized technologies. If you're passionate about React Native and Web3, this could be the opportunity you've been waiting for.

As a React Native Engineer, you will be responsible for the development and maintenance of high-quality, cross-platform mobile applications using React Native.  You will work closely with other engineers, designers, and product managers to deliver engaging and user-friendly mobile experiences.  Our ideal candidate is enthusiastic, possesses a solid technical foundation, learns quickly, and communicates effectively within a team environment.

Responsibilities:

• Design, develop, and maintain React Native applications for popular mobile platforms.
• Collaborate with designers and product managers to translate designs and wireframes into high-quality code.
• Implement clean, efficient, and well-documented code following best practices.
• Working within a codebase that utilizes code quality enforcement tools like ESLint, Prettier, and Sonarqube
• Write unit and integration tests to ensure code quality and functionality.
• Troubleshoot and debug applications across different devices and operating systems.
• Participate in code reviews and contribute to improving the team's coding standards.
• Stay up-to-date with the latest technologies and trends in React Native development.
• Contribute to the continuous improvement of our development processes.
• Work with backend teams to integrate mobile applications with APIs and backend services.

Technical Stack:

• React Native
• JavaScript (ES6+), TypeScript
• Redux 
• RESTful APIs
• Git

Qualifications:

• Upper-Intermediate level of English.
• 2+ years of experience in React Native development.
• Additional experience in web development using React and other technologies 
• Proven ability to build and deploy high-quality mobile applications.
• Strong understanding of JavaScript and related technologies.
• Experience with state management libraries and RESTful APIs.
• Excellent problem-solving and debugging skills.
• Ability to work independently and as part of a team.
• Strong communication and collaboration skills.
• Experience or knowledge in the Web3 area will be a big plus.

Nice to have:

• Experience with Web3 technologies (e.g., blockchain, smart contracts)
• Experience with native iOS (Swift/Objective-C) or Android (Kotlin/Java) development
• Experience with testing frameworks (e.g., Cypress, Jest, Enzyme)
• Experience with CI/CD pipelines

👉 We thank all those who apply, however, due to the numerous applicants, we may not respond to some candidates who do not match the requirements. Thank you for your understanding.

🎁 We offer:

- Daily support for your technical and personal growth;

- Professional and very friendly team, that is always ready to help and support;

- Medical Insurance;

- Flexible working hours;

- Offices in Ukraine and Poland;

- All official holidays;

- Paid vacation;

- Legal services and 24/7 lawyer protection;

- Tax & accounting services;

- Partly Tax coverage for Ukrainian contractors;

- The company provides all the necessary equipment;

- Fitness support upon request;

- English classes up to three times a week;

- The company pays 50% of the cost of refresher courses for any employee of the company;

- Workstation space;

- Mentoring and Educational Programs;

- Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

- Advanced Bonus System.

Our client is at the forefront of innovation in the gaming industry, leveraging data and AI to enhance player experiences and drive community engagement. We are looking for a passionate Data Lead to join our dynamic team dedicated to transforming data into actionable insights and enabling advanced AI applications.

As a Data Tech Lead, you will play an important role in designing, building, and optimizing data pipelines and architectures for AI and machine learning initiatives. You will work closely with AI/ML engineers and software developers on various tasks for the effective collection, storage, and processing of data from various sources, including social media and in-game interactions.

Responsibilities:

 - Data Pipeline Development: Design and implement flexible data pipelines for collecting and processing large volumes of data from social media platforms and other external sources.

 - Data Integration: Integrate data from various sources to support analytics and machine learning models that drive AI interactions in gaming.

 - Data Quality Assurance: Control high data quality and integrity through automated data validation and error-handling processes.

 - Data Storage Solutions: Optimize data storage solutions using cloud technologies (AWS, GCP, or Azure) to support real-time AI inference and analytics.

 - Analytics Support: Assist in developing data analytics tools and dashboards that provide insights into player behavior, social media trends, and game performance.

 - Documentation and Best Practices: Maintain clear documentation of data architecture, ETL processes, and data governance practices.

Qualification: 
- At least Upper-Intermediate level of English 

- 8+ years in software engineering, with a strong focus on data engineering and scalable data architecture and processing.
 - 2+ years of experience in technical leadership with an experience in building and organizing of development teams. 
 - Experience with in-game data in the Gamedev or iGaming industries.

 - Proficiency in programming languages such as Python or Scala/Java, and various databases.

 - Expertise in building ETL processes and data pipelines.

 - Familiarity with data warehousing solutions (Redshift, Snowflake and BigQuery) and NoSQL databases (MongoDB, Cassandra).

 - Solid understanding of data modeling, data governance, and best practices in data management.

 - Experience with various cloud-based data solutions.

 - Strong analytical and problem-solving skills.

Will Be a Plus:

 - Experience with machine learning frameworks (TensorFlow, PyTorch) and familiarity with statistical analysis tools.

 - Knowledge of social media APIs for data collection or automated content posting.

 - Passion for gaming and understanding of how data drives user engagement and gameplay experiences.

🎁 We offer:

- Daily support for your technical and personal growth;

- Professional and very friendly team, that is always ready to help and support;

- Medical Insurance;

- Flexible working hours;

- Offices in Ukraine and Poland;

- All official holidays;

- Paid vacation and sick leaves;

- Legal services and 24/7 lawyer protection;

- Tax & accounting services;

- The company is ready to provide all the necessary equipment;

- English classes up to three times a week;

- Workstation space;

- Mentoring and Educational Programs;

- Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

- Advanced Bonus System.

🗣️ We seek a motivated DevOps engineer to work alongside a dedicated group of developers to help architect and build our product. We embrace the agile methodology and encourage creative and adaptive teamwork to solve complex problems.

The product aims to provide users with a secure and private online experience. We are a close-knit team of passionate individuals who thrive on creativity and collaboration. As we continue to grow, we seek talented individuals to join us in building a safer digital future.

We seek a professional with a strong motivation to create innovative solutions and high-quality software. The ideal candidate will play an important role in designing, implementing, and maintaining our cloud infrastructure and CI/CD pipelines, ensuring the seamless deployment and operation of software applications in a Kubernetes environment.

The team works on enhancing the product's security and privacy features, with a seamless and secure online experience for our users.

If you have a passion for automation, cloud technologies, and ensuring the stability and scalability of production environments, we want to hear from you. 

Responsibilities:

• Write, maintain, and optimize Continuous Integration and Continuous Deployment (CI/CD) systems to streamline the software development lifecycle
• Design, create, and manage scalable and secure cloud infrastructure on AWS, ensuring high availability and performance
• Deploy, maintain, monitor, and troubleshoot software applications within Kubernetes clusters, ensuring smooth operation and quick resolution of issues
• Maintain the uptime of production environments, responding to incidents in a timely and efficient manner to minimize downtime and service disruptions
• Ensure the infrastructure is scalable and performs well under varying workloads, implementing solutions to handle growth and demand efficiently
• Automate and optimize development and deployment processes to improve efficiency, reduce errors, and accelerate delivery timelines
• Work closely with development teams to ensure seamless integration and operation of software and systems, providing support and expertise as needed
• Develop and maintain internal tooling to support development, deployment, and monitoring activities
• Write and maintain clear, comprehensive internal documentation to ensure knowledge transfer and consistency in operations

Requirements:

At least 3 years with the following:

• Experience working as a DevOps Engineer or in a similar role
• Hands-on experience working with Kubernetes and Docker
• Experience with CI tools such as GitHub Actions or similar
• Experience using AWS or another cloud provider.
• Experience working with scripting languages such as Bash, Python, or Node.js
• Applying Infrastructure as Code (IaC) concepts with tools like Terraform

Must also have:

• Upper-Intermediate level of English or higher
• Excellent problem-solving skills, with the ability to troubleshoot and resolve issues quickly
• Strong collaboration and communication skills, with the ability to work effectively in a team environment

👉 We thank you to all those who apply, however, there is a possibility from our side, of not responding to some candidates who do not match the requirements, due to numerous applicants. Thank you for your understanding.

🎁 We offer:

- Daily support for your technical and personal growth;

- Professional and very friendly team, that is always ready to help and support;

- Medical Insurance;

- Flexible working hours;

- Offices in Ukraine and Poland;

- All official holidays;

- Paid vacation and sick leaves;

- Legal services and 24/7 lawyer protection;

- Tax & accounting services;

- The company is ready to provide all the necessary equipment;

- English classes up to three times a week;

- Workstation space;

- Mentoring and Educational Programs;

- Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

- Advanced Bonus System.

🔦 We seek an experienced and capable full-stack developer to assist in creating a groundbreaking security product. This solution integrates sophisticated encryption methods with a user-friendly, password-free experience, delivering file-level security that is not available from operating systems and cloud service providers.

💻 We are seeking engineers with a strong engineering mindset who are passionate about building innovative solutions and high-quality software. Our ideal candidate is one who works diligently to solve complex problems, appreciates a culture of learning and collaboration, and is invested in the future of security.

🧰 Requirements:

- Bachelor's degree in Computer Science, related field, or equivalent practical experience.

- 3+ experience as a Software Engineer with experience in TypeScript, Node.js, Fastify and React.

- Experience with C#/.NET and willingness to work on some related tasks

- Solid understanding of web security principles and best practices.

- Experience with browser extensions and security software products is a plus.

- Strong problem-solving skills and attention to detail.

- Excellent communication and collaboration skills in a remote work environment.

🗣️ Responsibilities:

- Collaborate with cross-functional teams to design, develop, and deploy high-quality software solutions for browser security.

- Write clean, maintainable, and efficient code using TypeScript, Node.js, React, C#.

- Conduct code reviews to ensure code quality and adherence to coding standards.

- Work closely with product managers and UX/UI designers to implement new features and improvements.

- Identify and address performance bottlenecks, security vulnerabilities, and other issues proactively.

- Participate in the agile development process, including sprint planning, daily stand-ups, and retrospectives.

👉 We thank you to all those who apply, however, there is a possibility from our side, of not responding to some candidates who do not match the requirements, due to numerous applicants. Thank you for your understanding.

🎁 We offer:

● Daily support for your technical and personal growth;

● Professional and very friendly team, that is always ready to help and support;

● Flexible working hours;

● All official holidays;

● Paid vacation and sick leaves;

● Legal services and 24/7 lawyer protection;

● Tax & accounting services;

● The company provides all the necessary equipment;

● Fitness support upon request;

● English classes up to three times a week;

● The company pays 50% of the cost of refresher courses for any employee of the company;

● Workstation space;

● Mentoring and Educational Programs;

● Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

● Advanced Bonus System.

Our client is at the forefront of innovation in the gaming industry, leveraging data and AI to enhance player experiences and drive community engagement. We are looking for a passionate full-stack technical lead to join our dynamic team, which is dedicated to building and improving applications for managing a stack of AI agents. 

As a Full-stack Tech Lead, you will organize design and implement robust web applications to operate with various AI agents. You will work closely with software developers, data engineers, and AI/ML teams to build efficient interaction between users and AI to maximize user experience and system efficiency.

Our client has a startup environment and is looking for people to build a truly modern and fast-growing product. If you're ready to contribute to an AI-powered solution from scratch and go the extra mile if needed, this project is the perfect place for you to be.

Responsibilities:

• Design, develop, and maintain scalable web applications using Python and JavaScript frameworks.
• Organizing and coordinating technical team of full-stack developers.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Create APIs for seamless interaction between user interfaces and AI agents.
• Optimize application performance and ensure the responsiveness of applications.
• Write clean, maintainable, and efficient code while adhering to best practices.
• Participate in code reviews and provide constructive feedback to peers.
• Analyzing user needs and software requirements to determine feasibility and develop solutions.
• Troubleshoot and resolve issues across the stack, from front-end interfaces to back-end systems.
• Stay updated with the latest industry trends and technologies to incorporate into product advancements.

Qualifications:

• At least an Upper-Intermediate level of English.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• 8+ years of experience as a Full-Stack Developer with expertise in Python and JavaScript.
• Tech/Team leadership experience.
• Experience on projects related to operating of in-game data in Gamedev or iGaming industries.
• Familiarity with React or other similar framework.
• Experience with back-end frameworks (e.g., Flask, Django).
• Strong understanding of RESTful APIs, microservices architecture, and cloud technologies.
• Knowledge of database technologies (SQL and NoSQL) and data modeling.
• Experience with version control systems (e.g., Git).
• Excellent problem-solving skills and a proactive attitude.
• Strong communication skills and the ability to work collaboratively in a team environment.

Will Be a Plus:

• Experience with monitoring tools (e.g., Prometheus, Grafana) and logging solutions (e.g., ELK stack).
• Knowledge of microservices architecture and serverless computing.
• Passion for gaming and understanding how infrastructure impacts user engagement and gameplay experiences.

🎁 We offer:

- Daily support for your technical and personal growth;

- Professional and very friendly team, that is always ready to help and support;

- Medical Insurance;

- Flexible working hours;

- Offices in Ukraine and Poland;

- All official holidays;

- Paid vacation and sick leaves;

- Legal services and 24/7 lawyer protection;

- Tax & accounting services;

- The company is ready to provide all the necessary equipment;

- English classes up to three times a week;

- Workstation space;

- Mentoring and Educational Programs;

- Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

- Advanced Bonus System.

Our client is at the forefront of innovation in the game development industry, leveraging data and AI to enhance player experiences and drive community engagement. We are looking for a passionate DevOps Lead to join our dynamic team dedicated to organizing the deployment, operation, and management of our applications and infrastructure.

As a DevOps Tech Lead, you will play a crucial role in designing and implementing DevOps practices to streamline development and operations. You will work closely with top-management, software developers, data engineers, and AI/ML teams to build efficient CI/CD pipelines, maximize system reliability, and ensure seamless deployment of gaming applications and services.

Our client has a startup environment and is looking for people who are ready to contribute to building a truly modern and fast-growing product. If you're ready to contribute to an AI-powered solution from scratch and go the extra mile if needed, this is the perfect place for you to be.

Responsibilities:

• CI/CD Pipeline Development: Design and implement continuous integration and deployment (CI/CD) pipelines to automate application delivery and improve release cycles.
• Infrastructure Management: Manage and optimize cloud infrastructure (AWS, GCP, or Azure) to ensure scalability, reliability, and performance of applications and services.
• Monitoring and Performance Optimization: Implement monitoring solutions to track application performance and availability, and take proactive measures to improve system reliability.
• Collaboration and Communication: Work closely with development teams to foster a culture of collaboration and implement best practices in software development and operations.
• Automation and Scripting: Develop automation scripts and tools to streamline deployment, configuration, and operational tasks.
• Security Practices: Implement and maintain security best practices to protect applications and data in production environments.

Qualifications:

• At least an Upper-Intermediate level of English.
• 8+ years of experience in DevOps or a related field, with a focus on cloud infrastructure and automation.
• 2+ years of experience in technical leadership with an experience in building and organizing of DevOps teams. 
• Experience on projects focused on infrastructures for online gaming or iGaming projects.
• Proficiency in scripting languages (e.g., Python, Bash) and experience with configuration management tools (e.g., Ansible, Terraform).
• Strong experience with CI/CD tools (e.g., Jenkins, GitLab CI, CircleCI) and version control systems (e.g., Git).
• Familiarity with containerization technologies (e.g., Docker, Kubernetes) for scalable application deployment.
• Solid understanding of network protocols, security principles, and best practices in cloud-based environments.
• Excellent analytical and troubleshooting skills.

Will Be a Plus:

• Experience with monitoring tools (e.g., Prometheus, Grafana) and logging solutions (e.g., ELK stack).
• Knowledge of microservices architecture and serverless computing.
• Passion for gaming and understanding of how infrastructure impacts user engagement and gameplay experiences.

🎁 We offer:

- Daily support for your technical and personal growth;

- Professional and very friendly team, that is always ready to help and support;

- Medical Insurance;

- Flexible working hours;

- Offices in Ukraine and Poland;

- All official holidays;

- Paid vacation and sick leaves;

- Legal services and 24/7 lawyer protection;

- Tax & accounting services;

- The company is ready to provide all the necessary equipment;

- English classes up to three times a week;

- Workstation space;

- Mentoring and Educational Programs;

- Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

- Advanced Bonus System.

Join a forward-thinking project at the forefront of building decentralized, economic, censorship-resistant computing infrastructure powered by blockchain technology. The solution offers reliable and scalable environments tailored for varied applications, including transactions, AI environments, blockchain products, and audio/video streaming.

We seek a highly skilled Senior Rust Engineer with strong React skills to join our dynamic team. In this role, you will be instrumental in developing and refining our decentralized applications, focusing on scalability, performance, and user experience. You will work closely with cross-functional teams and contribute to building a robust infrastructure that prioritizes data security and user autonomy.

 

Responsibilities:
- Design, develop, and maintain decentralized applications using Rust and React.

 - Implement core features of personal data servers (PDS) and ensure seamless interaction with SQLite and other database systems for data persistence.

 - Collaborate with product managers, technical experts, and other engineers to translate requirements into high-quality code.

 - Contribute to the overall architecture and design of the system, ensuring scalability and reliability.

Requirements:

 - At least Upper-Intermediate English 

 - Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience).

 - 7+ years of professional experience in software development, with a solid focus on Rust programming.

 - Proficient in front-end development using React, with experience in building user interfaces for complex applications.
- Ability to read Scala and Python code.

- Experience with SQLite or similar lightweight databases in client-side applications.

- Experience in working with decentralized technologies and blockchain principles on real projects. Experience with AT Protocol will be a big plus.

 - Familiarity with systems design, API development, and microservices architecture.

 - Excellent problem-solving skills and attention to detail.

 - Strong communication skills and the ability to work collaboratively in a remote team environment.

🎁 We offer:

- Daily support for your technical and personal growth;

- Professional and very friendly team, that is always ready to help and support;

- Medical Insurance in Ukraine;

- Flexible working hours;

- Offices in Ukraine and Poland;

- All official holidays;

- Paid vacations and sick leaves;

- Legal services and 24/7 lawyer protection;

- Tax & accounting services;

- The company provides all the necessary equipment;

- Fitness support upon request;

- English classes up to three times a week;

- Workstation space;

- Mentoring and Educational Programs;

- Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

- Advanced Bonus System.

We are looking for a Solidity Engineer to join DeFi asset management platform. This role involves building a multi-chain asset management protocol that enables users to create crypto portfolios with additional yield in one click. You will work in a fast-paced environment with Web3 technologies, blockchain infrastructure, and a highly skilled team.

Requirements:

● 1+ years of experience in Full-Stack Development;

● 1+ years of experience in Solidity and Blockchain Development;

● Proficiency in JavaScript/TypeScript, MERN stack, and modern frameworks;

● Experience with DeFi protocols and APIs (1inch, 0x, Enso API);

● Strong understanding of Smart Contract Development using Truffle, Ganache CLI, Geth, and Remix;

● Experience operating blockchain nodes, especially in Ethereum;

● Familiarity with microservices architecture, message queues, and database scaling strategies;

● Knowledge of UNIX/Linux system internals, system calls, TCP/IP, and debugging tools;

● Experience with Git, version control, and TDD (Test-Driven Development);

● Upper-Intermediate English or higher.

Responsibilities:

● Develop and optimize smart contracts for DeFi asset management;

● Design and implement scalable blockchain-based solutions;

● Integrate with decentralized exchanges and liquidity protocols (1inch, 0x, Enso API);

● Ensure the security and efficiency of smart contracts through rigorous testing and auditing;

● Manage blockchain nodes and infrastructure for optimal performance;

● Build and maintain backend services for blockchain interactions and API integrations;

● Deploy and manage applications using modern DevOps tools;

● Collaborate with a cross-functional team to drive innovation in the DeFi space.

Will Be a Plus:

● Experience working with containers and orchestration systems (Docker, Kubernetes).

We thank all those who apply, however, there is a possibility from our side, of not responding to some candidates who do not match the requirements, due to a large number of applicants. Thank you for your understanding.

We offer:

● Daily support for your technical and personal growth;

● Professional and very friendly team, that is always ready to help and support;

● Medical Insurance;

● Flexible working hours;

● Offices in Ukraine and Poland;

● All official holidays;

● Paid vacation;

● Legal services and 24/7 lawyer protection;

● Tax & accounting services;

● Fitness support upon request;

● English classes up to three times a week;

● The company pays 50% of the cost of refresher courses for any employee of the company;

● Workstation space;

● Mentoring and Educational Programs;

● Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);

● Advanced Bonus System.