Systems Research Engineer Intern Jobs

Defense Unicorns seeks a Senior Software Engineer to work on our core products. You’ll collaborate closely with product managers, designers, and end users to ensure we’re building the right solutions—and building them well. The team enables Platform Engineers to securely build, deploy, and operate mission-critical applications in regulated and disconnected environments by providing the core platform and tooling that power UDS. As a Senior Software Engineer, you’ll operate at the intersection of product development and technical execution. You’ll lead the design, implementation, and deployment of features and systems that have direct impact on mission outcomes. Responsibilities: Work with engineers internal to the company, and within the open source community on feature and bug fix requests Proactively identify and resolve ambiguity in product requirements Comfortable in an asynchronous, all remote environment Actively participate in communities of practice via Slack and Github Issues Integrate software products with existing defense systems, ensuring seamless interoperability and adherence to security protocols Own architecture decisions and ensure technical quality across the engineering team Develop comprehensive documentation, including design specifications, user manuals, and maintenance guides Stay abreast of emerging technologies and industry trends to inform product enhancements and innovation. Provide technical mentorship and elevate engineering standards across the team Influence product direction through deep understanding of user needs and system constraints Participates in a shared 24x7 on-call rotation, owning incident response, troubleshooting, and coordination to ensure reliable production systems Travel Expectations/Requirements: 5-15% The listed responsibilities are not exhaustive and additional responsibilities may be assigned based on the evolving needs of the organization. We are seeking a dynamic individual who is able

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 Senior Frontend Engineer to our team in Stockholm or Malmö, Sweden. Please note that applicants must live in Sweden and hold a valid work permit at the time of application to be considered for this role Responsibilities: Develop and maintain modular, reusable React components to deliver rich and responsive user interfaces across UniFi systems and applications Collaborate with designers and product managers to continuously enhance UI/UX, proposing improvements to existing interfaces and shaping new user flows Write and maintain comprehensive test cases to ensure code quality, reliability, and maintainability Contribute to frontend architectural decisions and participate in design/code reviews to uphold best practices Build scalable front-end visualization components for displaying device relationships, floorplans, and system topologies Build and maintain reusable AI skills, agent definitions, and their specs so AI-assisted workflows stay accurate over time Critically review and verify AI-generated code for correctness, rather than accepting it as-is Requirements: 5+ years of professional experience working with JavaScript, React and TypeScript Strong understanding of programming principles, design patterns, and modern we

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 (Go) to our team in Stockholm or Malmö, Sweden. Please note that applicants must live in Sweden and hold a valid work permit at the time of application to be considered for this role. Responsibilities: Design, develop, and maintain efficient, scalable, secure, and reliable backend services for UniFi OS and/or other applications across UniFi Design and implement robust RESTful APIs and services using Golang Develop applications and services for embedded platforms, integrating closely with network device firmware, hardware, and other applications Architect and document backend software systems with a focus on performance, scalability, security, and maintainability Perform network programming and system-level integration across multiple subsystems Integrate new features into larger software systems and connected device ecosystems Collaborate closely with cloud architects, backend and frontend engineers, UX designers, QA engineers, and other stakeholders to deliver cohesive product experiences Participate in code reviews, technical discussions, and knowledge sharing to continuously improve engineering quality and practices Take ownership of deliverables and consistently meet project timelines and q

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. Overview We’re looking for a technically strong and user-focused Cloud QA Engineer to join our UniFi Cloud Service team. This role plays a key part in ensuring our cloud platform delivers a reliable, scalable, and seamless experience across distributed systems. The focus is on building scalable test systems, validating cloud services, APIs, and networking behaviors under real-world conditions, while continuously improving QA efficiency through automation and AI-assisted workflows. You’ll take ownership of end-to-end validation across cloud, backend, and networking layers, with strong emphasis on automation, system reliability, and quality at scale. Key Responsibilities Automation & AI-driven QA Design and implement automated test strategies across API, integration, and end-to-end flows Build and maintain automation frameworks (Python preferred) and integrate with CI/CD Leverage AI tools to generate test cases, improve automation, and debug issues Evaluate AI-generated outputs and improve QA efficiency through AI-assisted workflows End-to-End Validation Own validation across cloud services, APIs, networking, and distributed system interactions Cover service-to-service flows, data consistency, and failure handling Validate real-world scenarios including deployment, upgrade, connectivity, and long-running usage Perform load/stre

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. Role Summary We are looking for a Product Reliability Engineer (AQA) - UniFi Fabric Platform to evolve QA beyond traditional Dev support into customer-driven product reliability ownership. This role focuses on scalable validation systems and production-like, real-world customer workflow coverage for UniFi Fabric across Identity (Admins and Users), MSP, Zero Trust, provisioning, orchestration, cloud services, client workflows, and application backends. You will work closely with Support, Product, Engineering, Cloud, Identity, client, and application backend teams to translate real customer pain points into repeatable validation coverage and release confidence. The ideal candidate is a strong SDET / AQA who can build reliable automation systems, debug complex product behavior across frontend, backend, cloud, and client surfaces, and reduce customer risk before issues reach production. What You’ll Do Build and maintain scalable automated validation systems for UniFi Fabric workflows across client, cloud backend, and application backend surfaces. Translate Support cases, customer feedback, field issues, and regression patterns into repeatable test scenarios. Maintain production-like and real-world workflow environments that reflect customer deployments, data, permissions, upgrades, provisioning, and failure recovery paths. Validate d

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. At Ubiquiti, pre-sales engineering is not a support function—it’s a strategic lever. You’ll work at the intersection of customers, partners, and product, helping define how modern IT infrastructure is designed, deployed, and scaled. The Role We’re looking for a Pre-Sales Engineer who thrives in ambiguity, thinks in systems, and enjoys turning complex, real-world problems into simple, scalable solutions. You’ll work across Ubiquiti’s expanding ecosystem—including routing, switching, security, SD-WAN, cameras, and access control—partnering with enterprise customers, MSPs, and internal teams to design architectures and influence product direction. This is not a traditional, script-driven sales engineering role. You’ll be expected to operate with autonomy, challenge assumptions, and contribute to how UniFi evolves—not just how it’s sold. What You'll Do Own problem discovery and design scalable solutions across networking and physical security, even when requirements are unclear Create presentations, demos, and training content that translate complex systems into clear, compelling narratives Translate customer and partner needs into structured, actionable feedback that informs product direction Scale the Partner Program by onboarding new MSPs/SIs and growing existing partners through repeatable, high-quality deployments Support

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. 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. Responsibilities Design and develop secure cloud-based services. Integrate designs with larger software systems. Coworker with cloud architect, backend, and frontend developer. Positive attitude and a strong commitment to delivering quality work. Requirements 3+ years of experience with developing cloud services. 3+ years of experience with Java is required. Experience with AWS cloud services. Experience with Linux and Docker environments. Have basic knowledge of webRTC, WebSocket, and MQTT. Have experience with developing RESTful API. Familiarity with the Agile software development processes. Ability to work independently within a high-talent team. Self-starter willing to learn a

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. Requirements: 3+ years of software testing experience; 1+ year QA Automation(backend) using Python, 1 year of manual testing experience; Strong L2/L3 networking expertise; Strong knowledge of software QA methodologies, tools and processes; Experience with testing of networks and embedded systems; Good knowledge of Linux administration and shell scripting; Solid knowledge of Python; Experience with Python test frameworks (PyTest, etc.); Upper-intermediate level of spoken and written English; BS degree in Computer Science or related engineering degree. Responsibilities: Design and implement wide variety of test scripts; Take part in test planning and estimation; Extend functionality of Python test framework; Adapt and create tools to support new features/hardware; MQA lab setups maintaining; Manual testing — 40%, Automation — 60% Candidate needs to be in Kyiv (or consider relocation). Hybrid type of work. What do we offer: International work environment and work with global development teams; Excellent work conditions in an A-Class office (Horizon Park Business Center); Compensation package matching global standards; Flexible work hours (as required); Paid parking, courses, training, conferences and business trips; Medical insurance Free lunches Candidate will work as part of the global team of firmware,

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. Responsibilities Design and develop AC/DC Power Systems, including UPS and PDU hardware for enterprise products. Lead testing, validation, and troubleshooting at the system and component levels (e.g., batteries, inverters, and PCBAs). Work cross-functionally with R&D, DQA, Layout, and other engineering teams to define product requirements and resolve issues during development. Collaborate with manufacturing teams to ensure design for manufacturability (DFM), and support DOE planning, qualification, and production ramp-up. Ensure compliance with international electrical safety and environmental standards (e.g., UL, IEC, CE, RoHS). Provide technical documentation, design reviews, and electrical support throughout the product lifecycle. Own project timelines and drive technical decision-making to meet program goals. Analyze and improve power efficiency, battery integration, and thermal management for UPS/PDU systems. Qualifications Bachelor’s degree in Electrical Engineering or related field. 5+ years of experience in UPS/PDU, DC power systems, or OEM development. Proven experience designing UPS systems over 1kW, including single and 3-phase. Solid background in switching power design, battery systems (Lead-Acid, LiFePO4), and BMS technologies. Familiarity with testing methodologies and system-level verification. Strong communic

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. The Ubiquiti Prague office is looking for a QA Automation Engineer . This role involves establishing and scaling QA automation for a new product area, including building end-to-end test coverage, test infrastructure, and supporting frameworks from the ground up. We’re looking for a reliable team player with knowledge of computer storage. We expect you to bring your enthusiasm and creativity wherever you go and put them in the work you do. You should be able to think out of the box when finding solutions to brand new problems and make things work when the solution is not straightforward. Candidates should be prepared to work from our Prague office at least two times per week. Responsibilities: Design, build, and maintain automated end-to-end tests for network, storage, and related software systems Help establish QA automation practices, test coverage, and supporting infrastructure for a new and evolving product area Identify risk areas, define effective test scenarios, and keep automated coverage aligned with product changes Investigate issues, document defects, and work closely with developers to improve product quality Requirements: 3+ years of experience in QA automation or a similar role, with strong Linux and Bash skills Experience with at least one programming language, such as Python or Go Solid understanding

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 Cloud Software Engineer (Go) to our team in Stockholm, Sweden. Please note that applicants must live in Sweden and hold a valid work permit at the time of application to be considered for this role. Responsibilities: Design and develop secure cloud-based services across UniFi Integrate designs with larger software systems Co-work with cloud architects, backend, and frontend developers Requirements: 5+ years of experience with Golang is required Highly proficient in developing AWS cloud services Proficient with relational and document based databases Experience with developing RESTful and MQTT API Experience with Git/GitHub Experience with Linux and Docker environments Ability to work independently Excellent written and verbal communication skills Strong sense of ownership of tasks and responsibilities Highly proficient in English (written and spoken) Nice to have: Familiarity with Java development Basic knowledge of WebRTC and WebSockets A solid understanding of networking protocols and architecture Experience with SD-WAN and/or VPN technologies Familiarity with the Agile software development processes Benefits Competitive compensation Occupational pension, health insurance, private health insurance, life

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 Stockholm or Malmö, Sweden. Please note that applicants must live in Sweden and hold a valid work permit at the time of application to be considered for this role. Responsibilities: Design, build, and maintain backend services in Node.js and TypeScript across systems and applications on UniFi 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 developer experience of the services you work on Requirements: 5+ years of professional experience with Node.js and TypeScript 3+ years of experience working with SQL databases such as PostgreSQL Experience building software for connected devices, infrastructure products, networking systems, or similarly complex environments Good understanding of web security, including OWASP, browser securi

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. The Position: The Ubiquiti Kaunas office is looking for a talented and self-driven embedded C/C++ developer focused on Wi-Fi. You’ll bring experience, enthusiasm, and creativity to solve brand-new problems, think beyond the obvious, and make things work—even when the solution isn’t straightforward. Responsibilities: Build firmware for new Wi-Fi 6, 6E and WiFi 7 access points and routers; Collaborate with global firmware, hardware, RF, and product teams to deliver cutting-edge wireless networking products; Develop and maintain user-space services and libraries, management daemons, and integrations with hostapd and wpa_supplicant; Integrate third-party components and chipset SDKs into our OpenWrt-based firmware and build systems; Maintain and improve existing product firmware, focusing on stability, performance, security, and maintainability; Work closely with hardware and RF engineers on bring-up, calibration, validation, and issue investigation; Optimize roaming, mesh networking, airtime fairness, OFDMA, MU-MIMO, DFS, automatic channel selection, and QoS/WMM; Diagnose complex laboratory and field issues using logs, packet captures, tracing, and on-device profiling. Requirements: 3+ years of embedded firmware development experience using C or C++; Strong understanding of Linux internals, including processes, memory management, net

About Us Oliv.AI is a SalesTech global startup headquartered in San Francisco, debuting the world's first team of AI Agents for sales. With our recent $5.2M Seed funding, we solve one of the biggest problems for revenue teams: unreliable deal data. Oliv captures Deal Intelligence from every meeting, call, and email—without any rep involvement. The result is a clear, detailed view of every deal, presented in scorecards built on trusted sales methodologies like MEDDICC, BANT, and SPICED. Our AI agents are built for sales teams—sales managers, AEs, and RevOps—handling the work that takes them away from selling. With Oliv AI, sales teams can bring back focus on deals, strategy and conversation. About the Role We’re looking for an exceptional engineer to join the core team at Oliv AI. This is a high-ownership role for someone who can take an ambiguous product or engineering problem, figure out what actually needs to be solved, and drive it end-to-end from architecture and prototyping to production and iteration. You’ll primarily work on backend systems, but we don’t want engineers constrained by boundaries. If the problem requires frontend, infrastructure, data, AI/LLM integrations, or internal tooling, you should be comfortable figuring it out. We’re looking for someone with strong engineering judgment, someone who can spot what is not working, simplify complexity, think from the customer’s perspective, and improve the systems and practices around them. What You’ll Do Own complex, ambiguous engineering problems from first principles through production Design simple, scalable, reliable systems and make strong architectural trade-offs Think beyond the ticket and understand the customer problem behind what you’re building Identify technical or product issues proactively, not only when they are assigned Work across backend, frontend, infrastructure, data, and AI when needed Prototype quickly, test different approaches, and make decisions based on evidence Use mode

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. The Position: The Ubiquiti Riga office is looking for a talented and self-driven C++ developer to join a rapidly growing team to focus on next generation user interface development for upcoming consumer and enterprise products. We expect you to bring your experience, enthusiasm and creativity wherever you go and put them in the work you do. You should be able to think out of box when finding solutions to problems and make things work when the solution is not straightforward. Responsibilities: Develop and maintain UI/UX targeted application on embedded systems with a display; Analyze and solve technical problems; Actively participate in UI/UX decisions during new product development; Work as a part of the global team of firmware, hardware engineers and designers to develop cutting edge networking products and technologies; Willingness to learn new things on a regular basis. Requirements: 3+ years development experience with modern C++; Experience with Linux CLI; Experience working with Make and CMake; Experience with AI tools - Claude, Codex, etc; Knowledge of Git version control system; Fluent in English and Latvian. Experience that is a Major Plus: Experience with Qt Widgets, Quick (QML); Experience working with various build systems and toolchains; Experience with ARM Cortex-M microprocessors; Experience w