Senior Java Developer

Join us as a Senior Python Developer where you will play a pivotal role in enhancing our software solutions. You will collaborate with cross-functional teams to design, develop, and maintain high-quality applications. Your expertise in Python and deep understanding of software development principles will be essential in driving innovation within our projects.

Ajax Systems is a leading international technology company recognized as the largest manufacturer of security systems in Europe. Our innovative Ajax products are trusted by over 4.5 million users across more than 180 countries, featuring a portfolio of 280 devices designed for intrusion detection, video surveillance, fire safety, and automation.Join Our Automation Department, where we develop cutting-edge software and hardware solutions for testing each device during the manufacturing process. We design automated robotic lines for assembly and packaging, and we create software for device firmware and production management aimed at optimizing manufacturing time for sensors using Python 3 and Embedded C.Our Mission is to ensure the production of the highest quality devices in the shortest possible time. We develop proprietary software and hardware that are utilized at nearly every stage of production, from testing assembled boards and microcontroller firmware to verifying finished devices and packaging. Our primary challenge is achieving full automation of all production stages utilizing conveyors and robotics.Key Responsibilities:— Develop desktop applications (PC, single-board) to automate mass production processes, testing, and calibration of devices.— Integrate hardware with production software necessary for verifying/calibrating individual functions of security, video, and smart home devices.— Collaborate with CI/CD systems for automatic management of software versioning in production.— Create auxiliary programs, scripts, analysis algorithms, and APIs for interaction with databases, third-party software, and hardware from other teams.Required Skills and Qualifications:— Proficiency with PyQT/Pyside is essential.— Minimum of 2 years of commercial experience with Python 3.— Strong understanding of Multiprocessing, Threading, Sockets, and the Python Standard Libraries.— Knowledge of HTTP/TCP and OSI model.— Experience with Object-Oriented Programming (OOP).— Familiarity with embedded systems and automation technologies is a plus.

Join our dynamic team at ajax as a Python Tech Lead where you will play a pivotal role in guiding our development efforts. We are looking for an enthusiastic leader who is passionate about technology and can inspire a team of developers to produce high-quality software solutions.Your responsibilities will include overseeing project development, mentoring team members, and ensuring that our coding standards and best practices are adhered to. You will also work closely with stakeholders to gather requirements and translate them into technical specifications.

Join Ajax Systems, a leading international technology company and Europe's foremost manufacturer of security systems. With over 4.5 million end-users and 330,000 PRO users across more than 180 countries, our products are trusted for their reliability and innovation. We offer comprehensive solutions for protecting residential and commercial properties of all sizes. Our portfolio features 280 devices designed for intrusion protection, video surveillance, fire safety, comfort, and automation. Our team is expanding rapidly, showcasing significant growth in both personnel and global user base each year. Our QA Department plays a crucial role in ensuring the reliability and stability of our security systems, supporting products throughout their development, manufacturing, and ongoing evolution. Our engineers are not just testers; they are creative problem-solvers who rigorously assess new devices under extreme conditions — simulating human and animal movements, replicating challenging weather scenarios, and conducting controlled fire and flood tests.

Role overview Vacancies seeks a Senior Frontend Developer in Kyiv to help grow our product team. This position focuses on expanding development capacity and improving the quality and scalability of our frontend architecture. The team values developers who bring strong Vue experience, care about clean code, and approach design thoughtfully. What you will do Work closely with the team to deliver new product features Refactor and improve existing frontend codebases Boost product performance and scalability Share ideas to enhance both code and workflow Own tasks and ensure they are completed Who thrives here Developers with deep Vue expertise People who show initiative and ownership Those who care about clean, maintainable architecture Individuals able to work independently and move projects forward without sacrificing quality The product Since 2020, the team has built a global platform connecting people across backgrounds, religions, and cultures. Over 1 million visitors use the site each month, with users from the USA, Australia, and other countries. The platform ranks among the top 5 in its category, recognized for high-quality video and a seamless experience even during peak traffic, maintaining 99.99% uptime. The product is ad-free, focusing on genuine connections supported by advanced UX/UI. Features include AI-powered content moderation, strong data protection, and tools for building authentic global relationships. The next milestone: reaching the top 3 among international web-based social networking services.

nix provides corporate brand protection and domain management services to large enterprises, including Fortune 500 companies. The company specializes in domain registration, online brand monitoring, and anti-counterfeiting solutions. Role overview This Senior PHP Developer position centers on a major modernization project. The team is combining two legacy client portals into a single, unified platform. The goal is to deliver all current features in the new system before moving clients over. Technology stack PHP with Laravel RabbitMQ MySQL Nuxt.js (Vue.js) AWS Location This role is based in Ukraine.

Ajax Systems is an innovative full-cycle organization that transforms ideas into reality, encompassing everything from research and development to mass production and sales. Our expertise spans the manufacturing of advanced physical devices—integrating a variety of sensors and hubs—developing the associated firmware, creating robust server solutions, and releasing user-friendly mobile applications. Our dedicated team collaborates in our Kyiv office, enabling us to make all technical and product decisions locally, ensuring agility and cohesiveness.We are on the lookout for an experienced Android Developer to join our dynamic team and contribute to the evolution of products we are passionate about. We seek a candidate who takes pride in their work, ensuring exceptional user experiences and high-quality development standards. This is a unique opportunity to develop applications for one of Ukraine's leading hardware companies, impacting approximately 400 million active users worldwide. Soon, you will also have the chance to spearhead the development of several new products from the ground up.

Join our dynamic team at Miratech as a Senior Full Stack Developer, where you will play a vital role in driving innovative projects utilizing both Java and Angular technologies. Your expertise will contribute to creating robust and scalable applications that enhance user experience and operational efficiency.We seek a passionate individual who is ready to take ownership of their work and excel in a collaborative environment. This is an exciting opportunity to be part of a growing company known for its commitment to professional development and technical excellence.

Ajax Systems is a leading international technology firm recognized as the largest developer and manufacturer of Ajax security systems equipped with smart home functionalities in Europe. Our innovative ecosystem comprises over 280 devices, mobile and desktop applications, and robust server infrastructure. With a dynamic growth trajectory year after year, we proudly employ over 5,100 talented individuals dedicated to enhancing security for 4.5 million users across 187 countries.Our System Department is at the forefront of making devices smarter by transforming them into fully-fledged IoT solutions. The team is responsible for the development of OS Malevich, a modular RTOS tailored for various hardware platforms, and the Ajax Cloud, utilizing technologies such as Java 20 / Kotlin, AWS, Akka, NATS, Kafka, MongoDB, and MySQL. We develop applications for iOS (Objective-C, Swift), Android (Java, Kotlin), and Windows/macOS (Python / C++, QT, QML) to empower users, installers, and engineers to effectively manage, maintain, and monitor our systems.

Ajax Systems is a pioneering international technology firm and the largest manufacturer of security systems in Europe. The company specializes in cutting-edge solutions for video surveillance, smart homes, fire detection, and flood prevention. Our extensive product portfolio features 280 innovative wireless and wired devices designed for security and automation. Currently, Ajax safeguards over 4.5 million users across 187 countries.We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic accounting team at our Kyiv office. This role is perfect for a technically adept individual ready to contribute to impactful projects.

We are seeking a highly skilled Senior TypeScript/Vue.js Developer to join our dynamic team at Sigma Software Group. As part of our innovative Swedish advertising platform, you will play a crucial role in developing and enhancing our front-end applications using cutting-edge technologies. This is an excellent opportunity for professionals looking to make an impact in the world of digital advertising.

Join our innovative Game Development studio as a Senior Backend Developer specializing in .NET. We are seeking a seasoned professional who possesses a profound understanding of server architectures, real-time load handling, and cloud infrastructures. This position is ideal for an individual eager to build the backend for a new mobile game targeting Android and iOS platforms from the ground up, shaping the technological foundation of the product and making pivotal technical decisions.

About the Role Playtech is hiring a Senior Full Stack Developer for its Kyiv office. This position sits within the software development team and focuses on building and improving applications for the gaming industry. The work involves both front-end and back-end development, with a strong emphasis on delivering reliable and user-friendly products. What You Will Do Design and implement software solutions that meet business and technical requirements Enhance and maintain existing applications to improve performance and user experience Ensure smooth integration of applications across various platforms Collaborate closely with team members to deliver high-quality releases Who We’re Looking For Experience developing both front-end and back-end systems Strong attention to detail and a proactive approach to problem-solving Comfort working on complex projects in a collaborative team setting Ability to adapt and contribute in a busy development environment Location This role is based in Kyiv.

Join our dynamic team as a Senior Java Developer at Miratech in Kyiv. In this pivotal role, you will leverage your expertise in Java to design, develop, and optimize high-quality software solutions that drive our technology forward. Collaborate with cross-functional teams to create innovative applications and contribute to all phases of the development lifecycle.We are looking for passionate individuals who thrive in a collaborative environment and are eager to tackle complex challenges.

We are seeking a Senior/Lead Full-Stack Developer to enhance the technical team at Universe Group— FORMA. You will work on our web product dedicated to document processing and conversion. Your primary responsibilities will include:Designing and implementing new functional modules and integrations to enhance product capabilities.Ensuring high code quality and standardizing development approaches.Accelerating development processes and the release of new product versions.Defining and developing the product architecture, including technology selection, project structuring, and building scalable infrastructure to support a large user base.FORMA is a business of Universe Group that creates SaaS solutions for document management. Our flagship web product is PDFGuru. The team has achieved remarkable results, including:Over 4 million users monthly interact with our products.Our products offer more than 50 tools for efficient document handling.Users from over 30 countries trust our tools for their needs.Want to experience the FORMA atmosphere? Check out our video about our team—how we work, grow, and build a billion-dollar company from Ukraine.

Join Ajax Systems, a leading technology company and the largest producer of security systems in Europe. We are seeking a talented Embedded Hardware Developer to enhance our innovative product portfolio, which includes over 280 devices designed for intrusion protection, video surveillance, fire safety, and automation solutions. As part of our dynamic R&D team, you will collaborate with the Automation Department to develop sophisticated software-hardware complexes for testing devices during production, create robotic lines for assembly and packaging automation, and optimize manufacturing processes through advanced programming in Python 3 and Embedded C.

Ajax Systems is a leading international technology company and the largest manufacturer of security systems in Europe. With over 4.5 million end-users and 330,000 PRO users across more than 180 countries, our products are trusted worldwide. Ajax provides comprehensive solutions for safeguarding residential and commercial properties of all sizes. Our product portfolio features 280 devices designed for intrusion detection, video surveillance, fire safety, and automation solutions. Each year, we experience exponential growth in both our team size and our global user base.Our System Department is dedicated to enhancing device intelligence, transforming them into fully-fledged IoT solutions. We have developed and continue to enhance the Malevich OS (a modular RTOS for various hardware platforms) and the Ajax Cloud service (Java 20 / Kotlin, AWS, Akka, NATS, Kafka, Mongo, MySQL). To facilitate system management, maintenance, and monitoring, we have created applications for iOS (Objective-C, Swift), Android (Java, Kotlin), and Windows/macOS (Python / C++, QT, QML).We are on the lookout for a Senior C++ Developer to join our AI team. In this pivotal role, you will empower our entire range of video devices to not only capture images but also to discern specific objects within the frame, track their movement and behavior, and recognize events and individuals.Your mission will involve integrating various types of computer vision analytics into our cameras, doorbells, and NVRs, taking into account the unique resource constraints of each device. You will also ensure seamless device integration with each other and with the cloud. Beyond implementing new functionalities, there will always be opportunities to enhance existing features by bringing your innovative ideas to pre- and post-processing stages.This role requires close collaboration with ML engineers, business analysts, cloud developers, and application developers, providing you with a fantastic opportunity to advance both your communication skills and technical expertise.

Become a pivotal member of our Chatbot team at Wix, where your expertise in AI technology will help revolutionize customer experiences. As a Senior AI Server Engineer, you'll be responsible for the creation of sophisticated, context-aware features that will transform our Customer Care Chatbot into an essential resource for users navigating their Wix journey. Your role will encompass the entire development cycle—from exploring cutting-edge AI methodologies to implementing scalable features that provide meaningful value to millions of users.You will:Architect, develop, and integrate advanced AI functionalities utilizing the latest LLM and NLP technologiesEngage in research and experimentation to discover innovative solutions and apply high-level models to real-world customer care challengesTake full ownership of feature development, collaborating with product teams to define requirements, estimate scope, implement solutions, and monitor performanceOptimize system performance, stability, and reliability to ensure an uninterrupted, high-quality serviceParticipate in architectural and technical discussions aimed at enhancing system design and developer experience

Ajax Systems — a leading international technology firm and the largest manufacturer of security systems in Europe. Our products are trusted by over 4.5 million end users and 330 thousand PRO users across more than 180 countries. Ajax provides comprehensive solutions to safeguard residential and commercial properties of various sizes. Currently, our portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, comfort, and automation. Each year, we demonstrate exponential growth in both team size and user base worldwide.The security systems we develop demand heightened standards of reliability and stability. This is why our QA Department at Ajax Systems supports product development through all stages, from inception to manufacturing and ongoing enhancement. Our team identifies bugs in hardware, software, or system interactions. We are not just a group of 'clickers'; we are creative engineers who test new devices under various extreme conditions: simulating human and animal movements, recreating complex weather scenarios, managing temperature fluctuations, and conducting controlled fires and flooding.