--- title: 'Java Developer (Video Media) at Ajax Systems' canonical: 'https://feeny.ai/job/java-developer-video-media-ajax-systems-kyiv-5ekd8x9wc3tc' type: 'job' last_seen: '2026-09-21' --- # Java Developer (Video Media) at Ajax Systems - **Company:** Ajax Systems - **Location:** Kyiv, Ukraine - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-09-18 - **Last confirmed live:** 2026-09-21 - **Apply:** https://jobs.lever.co/ajax/3e83fcd4-c7f0-4905-a264-2f9c5d0bf487 ## 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 Experience: - Java: 4+ years of professional backend development in enterprise environment - Kotlin: Knowledge and practical work experience - Java Concurrency: Strong understanding and practical application experience Architecture & Design: - Understanding of SOA, microservice, and event-driven architecture - Cloud development principles with practical AWS experience - Ability to scale and ensure high availability of loaded systems Technologies & Tools Required: - MongoDB, NATS - Enterprise-grade stack (messaging brokers, in-memory storages, NoSQL, key-value databases) - Docker and Kubernetes (containerized applications) - Git, Gradle, Jenkins Nice to Have: - Redis, Netty, Akka, gRPC, Project Reactor We offer: - The opportunity to suggest and implement your own ideas that directly influence the product and its mass production - A place in a fast-growing company with a motivated and professional team - Competitive salary - Medical insurance - English classes - The opportunity to participate in Ajax’s internal beta-testing program for security systems - Discounts from partner companies - Discounts on Ajax products Ajax Systems is a Ukrainian success story that has grown into a global product. Ajax devices are trusted by more than 4.5 million end users and 330,000 PRO users in over 180 countries. The company provides comprehensive solutions to protect residential and commercial properties of all sizes. Today, Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation. ## 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. [Ajax Systems Jobs on Lever](https://jobs.lever.co/ajax/) ## Other roles at Ajax Systems - [WiFi QA Engineer](https://feeny.ai/job/wifi-qa-engineer-ajax-systems-kyiv-mf02cqh31t9j) — Kyiv, Ukraine - [Customer Service Team Lead](https://feeny.ai/job/customer-service-team-lead-ajax-systems-kyiv-7c50b4zwjyhw) — Kyiv, Ukraine - [Фахівець із закупівель непрямих матеріалів](https://feeny.ai/job/ajax-systems-kyiv-zkrkp43cqp1h) — Kyiv, Ukraine - [C/C++ Linux Developer (Automation Team)](https://feeny.ai/job/c-c-linux-developer-automation-team-ajax-systems-lviv-w43yf823e2g0) — Lviv, Ukraine - [Junior Logistics Specialist](https://feeny.ai/job/junior-logistics-specialist-ajax-systems-kyiv-mgzz0nb3gzq5) — Kyiv, Ukraine - [Поліграфолог](https://feeny.ai/job/ajax-systems-kyiv-ewht2bpmpys3) — Kyiv, Ukraine - [Transfer Pricing Manager](https://feeny.ai/job/transfer-pricing-manager-ajax-systems-dubai-2zxrrnmqk702) — Dubai, United Arab Emirates - [Process Engineer](https://feeny.ai/job/process-engineer-ajax-systems-turkey-1wm9nt12rcvn) — Turkey - [Project Manager (Device Team)](https://feeny.ai/job/project-manager-device-team-ajax-systems-kyiv-p4tn2441jy08) — Kyiv, Ukraine - [Chief Physical Infrastructure Officer](https://feeny.ai/job/chief-physical-infrastructure-officer-ajax-systems-kyiv-8mfgsmbe8136) — Kyiv, Ukraine