Backend Developer (Kotlin)

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Join forces with us on our mission to build a better IT industry. We are currently looking for a highly skilled Backend Developer (Go) to our team in Prague. Candidates should be prepared to work from our Prague office at least two times per week. Responsibilities: Develop efficient, scalable, and maintainable backend services Develop integrations with network device firmware and other applications Integrate feature designs with larger software systems Co-work with cloud architects, backend developers, frontend developers, designers, and other stakeholders Requirements: 5+ years of experience with Golang is required Experience with RDBMS and NoSQL Experience with developing REST and MQTT API Experience with Git/GitHub Experience with Linux and Docker environments Strong understanding of Go concurrency (goroutines, channels, synchronization primitives) Ability to work independently within a high-talent team Excellent written and verbal communication skills Strong sense of ownership of tasks and responsibilities Highly proficient in English (written and spoken) and Czech Nice to have: Familiarity with NodeJS and Typescript development Knowledge of Bash and Unix Knowledge of WebRTC and WebSockets Good understanding of networking protocols and architectures Experience developing AWS cloud services / DevOps

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE As a Software Engineer on our team, you will drive core middleware innovation that unifies and scales Everpure’s™ industry-leading FlashArray and FlashBlade storage platforms. Acting as a key technical anchor, you will own critical backend infrastructure end-to-end while collaborating with cross-functional global engineering teams to deliver high-performance, six 9s reliable systems. You will modernize system architectures, build unified management layers, and extend core capabilities into public cloud environments without impacting customer uptime. If you thrive on individual code ownership, value deep craftsmanship, and want to directly shape enterprise-grade data infrastructure, this role offers an exceptional platform for your impact. WHAT YOU’LL DO Build Unified Middleware Services: Develop high-throughput, multi-threaded Java and Spring-based middleware components that bridge FlashArray and FlashBlade platforms into a seamless enterprise management layer. Maintain REST API Infrastructure: Implement and refine multi-versioned REST API specifications, developer workflows, and SDKs to support reliable data delivery across CLI, GUI, and cloud interfaces. Deliver Resilient System Features: Write and test fault-tolerant backend software and algorithms end-to-end to maintain six 9s reliability standards across mission-critical systems and public cloud integrations like AWS Cloud Block Store. Refactor &a

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE As a Software Engineer on the DX Security Components team , you will architect the backend services that safeguard Pure’s core authentication and remote access infrastructure. You’ll act as a security-minded engineer within a high-impact platform team, ensuring our cloud offerings and customer appliances remain auditable and resilient. Collaborating across the DX organization, you will bridge the gap between robust security protocols and seamless developer integration to protect our global customer base. WHAT YOU’LL DO Engineer Security Infrastructure: Design and operate high-availability backend services that manage authentication, authorization, and certificate lifecycles to ensure secure access across all Pure1 cloud and appliance environments. Drive End-to-End Ownership: Lead the full service lifecycle—from initial architectural design and threat modeling (STRIDE) to deployment, observability, and long-term cost efficiency. Champion Secure Integration: Partner with Security Governance and product teams to streamline remote-access flows, translating complex security requirements into pragmatic, automated workflows for other engineering squads. Ensure System Resilience: Maintain the integrity of security-sensitive systems by participating in a global follow-the-sun on-call rotation, performing root-cause analysis, and hardening infrastructure against emerging threats. Automate Trust: Evolve Infrastructure as Cod

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Join forces with us on our mission to build a better IT industry. We are currently looking for a highly skilled Backend Software Engineer (Node.js) to join our team in Prague. Candidates should be prepared to work from our Prague office at least two times per week. Team: You will join the UniFi OS team, which develops and maintains the core operating system powering UniFi Cloud Gateways, NAS, and NVRs. The team provides the secure and stable platform that UniFi applications depend on across networking, camera surveillance, VoIP, and access control. This role is well suited to an engineer who enjoys solving complex product and platform problems, improving reliability, and working across backend, embedded, cloud, and application boundaries. Responsibilities: Design, build, and maintain backend services in Node.js and TypeScript. Develop secure, scalable, and maintainable APIs and service workflows. Contribute to architecture and code design decisions across the team. Review code and help maintain strong engineering standards, release quality, and development workflows. Investigate production issues, debug complex failures, and ship robust fixes. Work closely with embedded, web, mobile, product, and design teams to deliver platform capabilities used across the UniFi ecosystem. Improve the reliability, observability, and devel

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Ubiquiti Prague R&D team is looking for experienced Embedded Firmware Engineer (Access). Candidates should be prepared to work from our Prague office at least two times per week. Responsibilities: Work as part of a global, cross-functional team of firmware, hardware, and product engineers to develop cutting-edge access control products and technologies Design, implement, and maintain embedded firmware for current and next-generation access devices (readers, hubs, controllers) Enhance and optimize existing firmware for performance, stability, and security Participate in code reviews to ensure adherence to best practices and maintain high code quality standards Collaborate closely with BSP, Hardware, Backend, Mobile, and Product Assurance (PA) teams throughout the product development lifecycle Diagnose, troubleshoot, and perform root-cause analysis of firmware and system-level issues Support manufacturing and production validation by resolving firmware-related issues and assisting with firmware update pipelines Requirement (Must-Haves): 3+ years embedded firmware development experience with C Good knowledge of network protocols (TCP/IP, HTTP, Websocket, TLS/SSL) Experience with microcontrollers, SoCs, embedded Linux and RTOS Experience with access control systems (e.g., card readers, NFC, mobile unlocking) Knowledge of Git vers

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Join us in Prague and help build the next generation of security products. The Ubiquiti Prague office is looking for a Endpoint Security Software Engineer . Candidates should be prepared to work from our Prague office at least two times per week. Responsibilities: Design and develop endpoint security software Build reliable, high-performance software across modern operating systems Collaborate with engineers across backend, cloud, networking, and frontend Help shape the architecture of new security products Requirements: Proven experience developing endpoint security products (EDR, endpoint protection, endpoint management, or similar) is required Experience building complex software products Strong understanding of operating systems and systems programming Excellent problem-solving skills and engineering judgment Ability to work independently within a high-performing engineering team Professional proficiency in English Benefits: Competitive salary and 5 weeks of vacation per year Discretionary bonuses based on individual performance Flexible working hours, home office Access to all the latest Ubiquiti products and prototypes for home use and tests Top floor office near Andel with terrace and amazing view of Prague Kitchen packed with food, snacks & sodas, meal allowan