--- title: 'Senior Java Developer (Smart Home) at Ajax Systems' canonical: 'https://feeny.ai/job/senior-java-developer-smart-home-ajax-systems-lviv-rc4m5rfqfp1x' type: 'job' last_seen: '2026-11-09' --- # Senior Java Developer (Smart Home) at Ajax Systems - **Company:** Ajax Systems - **Location:** Lviv, Ukraine - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-11-04 - **Last confirmed live:** 2026-11-09 - **Apply:** https://jobs.lever.co/ajax/c5bde7b3-d241-4b4f-92e7-728472f07f2d ## Job description Ajax Systems, an international tech company and the largest manufacturer of security systems in Europe. We are looking for a new team member to join our System devisions as Java Developer. The System Division is responsible for building and developing the Ajax software ecosystem. The team develops and maintains OS Malevich and the Video Management System, builds scalable cloud infrastructure, and creates client applications for multiple platforms, ensuring that all system components work together as a unified ecosystem. The division works with Java, Kotlin, Swift, C, C++, and Python. It includes embedded, cloud, mobile, and desktop engineers who ensure the stable operation of Ajax as a single digital platform. Required skills: 5+ years of commercial experience in backend development with Java in an enterprise environment. Strong understanding of Java Concurrency and hands-on experience with concurrent programming in production systems. Solid understanding of SOA, microservices and event-driven architecture. Practical experience with cloud computing platforms. Experience building and supporting high-load, scalable and highly available systems; Hands-on experience with messaging brokers. Strong understanding of modern backend infrastructure, NoSQL, key-value databases and in-memory storage solutions. Practical experience with Kubernetes. Experience with Git, Gradle or othet CI/CD tools. Strong knowledge of unit testing and automated testing approaches Would be a plus: ## About Ajax Systems ## Company Overview - **One-liner**: Ajax Systems designs and manufactures wireless security, fire safety, video surveillance, and smart home automation systems, sold in over 180 countries. - **Entity Type**: Private (Series A, $10M from Horizon Capital in 2019) - **Headquarters**: Kyiv, Ukraine - **Founded**: 2014 (first investment in 2015) - **Founders**: Aleksandr Konotopskyi ## Core Business - **Primary industries**: Security systems, smart home, IoT, fire and life safety, video surveillance - **Target customers**: B2B (security installers, monitoring stations, distributors) and B2C (homeowners and businesses) - **Mission**: “Stand against evil using innovative yet intuitive technologies.” ## Products & Services - **Ajax Security System**: Wireless intrusion detection system including hubs, motion detectors, door/window sensors, glass break detectors, sirens, panic buttons, and keypads – all managed via iOS/Android/macOS/Windows apps. - **Fire & Life Safety**: Smoke detectors with HazeFlow algorithm, leak detectors, air quality monitors – active 24/7 regardless of security mode. - **Video Surveillance**: Cameras and NVRs introduced in 2023, integrated into the same system. - **Comfort & Automation**: Smart plugs, relays, switches, and scenarios for lighting, heating, and appliance control. - **OS Malevich**: Proprietary real-time operating system for hubs, supporting OTA updates, cloud connectivity, and up to 150 devices. - **Jeweller Radio Technology**: Two-way encrypted communication at 868 MHz with up to 2 km range and alarm delivery in <0.15 seconds. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed - **Key Metric**: Total funding $11M ($1M seed from SMRK in 2015, $10M Series A from Horizon Capital in 2019) - **Notable Investors/Partners**: SMRK (Oleksandr Kosovan, Andriy Dovzhenko), Horizon Capital (Emerging Europe Growth Fund III) - **Growth Signals**: 4,100+ employees (as of 2026), 4 million users, presence in 187 countries, second factory opened in Turkey (2022), product line expanded to video surveillance (2023) ## Competitive Advantages - **Full-cycle production** in Ukraine and Turkey – all devices designed and manufactured in-house, ensuring quality control and rapid iteration. - **Proprietary technologies**: Jeweller radio protocol, OS Malevich, HazeFlow smoke verification – create a unique, integrated ecosystem. - **European certifications**: Grade 2 (wireless) and Grade 3 (wired) per EN 50131, fire standard EN 14604 – trusted by professional security companies. - **Award-winning**: Recognized at IFSEC, Intersec, and by PSI Magazine, GIT Security – one of Europe’s most awarded security systems. ## Strategic Focus - **Global expansion**: Strengthening presence in Western Europe (top markets: Ukraine, Spain, Italy, France, UK) and diversifying production geographically. - **Product innovation**: Adding video surveillance and expanding automation/comfort devices to create a unified smart security platform. - **R&D investment**: Continuous development of new wireless protocols, algorithms, and hardware across R&D centers in Kyiv, Kharkiv, Vinnytsia, and Lviv. ## Why Work Here - **Culture**: A multinational team of over 4,100 people with a strong sense of purpose – “stand against evil” – and a history of resilience forged through Ukraine’s challenges. - **Work model**: On-site roles in Kyiv and Istanbul; representative offices in UAE, UK, Italy, Spain, and other regions. - **Engineering focus**: Full-cycle product development from scratch, R&D-driven environment, modern tech stack (RTOS, cloud, OTA updates). - **Perks**: ISO 14001 environmental management, commitment to RoHS compliance, and a flat, impact-oriented structure. Hiring process uses AI tools to support application review. ## Sources 1. [Ajax Systems Career Page](https://ajax.systems/career/global/) 2. [Ajax Systems About Page](https://ajax.systems/about/) 3. [Ajax Systems FAQ](https://ajax.systems/faq/) 4. 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