Interface Designer Jobs

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role We are looking for a Hardware Test Engineer to build the test infrastructure that ensures our AI-powered devices meet quality, reliability, and performance standards at every stage of development. You will own test strategy from board bring-up through mass production, designing fixtures, writing automation scripts, and defining the criteria that decide whether a product ships. From functional test on the bench to burn-in and stress testing at the factory, you will be the last line of defense before our devices reach users. Responsibilities Test Strategy: Define and own the end-to-end test plan across EVT, DVT, PVT, and production milestones. Fixture Design: Design and develop custom test fixtures (bed-of-nails, pogo pin, cable harness) for PCBA and system-level testing. Test Automation: Write automated test scripts in Python to control instruments, collect data, and generate pass/fail reports. Board Bring-Up: Lead electrical bring-up of new PCBAs, debugging power rails, clocks, interfaces, and peripheral functionality. Reliability Testing: Plan and execute environmental stress tests including thermal cycling, vibration, drop, and accelerated life testing. Production Support: Work with contract manufacturers to deploy and maintain test sta

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role We're hiring a Product Design Engineer to help shape the physical form of our AI-powered devices. You'll work across the full product development cycle — concept sketches, CAD modeling, prototyping, and DFM — collaborating with electrical and ML engineers to design enclosures and mechanisms that accommodate complex sensor arrays, thermal systems, and compact compute modules. Responsibilities Lead mechanical design of core hardware (enclosures, structural components, flex assemblies, interconnects) from concept to production Convert industrial design intent into reliable, manufacturable, and precise engineering solutions, maintaining product vision and structural/functional performance Define and own specifications, tolerances, material selections, and 3D CAD across processes like injection molding, die casting, stamping, and CNC machining Drive Design for Manufacturability (DFM) and Design for Assembly (DFA) with manufacturing partners from early concept through production builds Use tolerance analysis, FEA, and DOE's to validate designs and resolve failure modes pre-assembly Collaborate with Industrial Design, Electrical Engineering, Acoustic Engineering, Reliability & Operations to unify design considerations (functionality, thermal

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role As the RF antenna engineer, you will be responsible for the end-to-end wireless design for our first-generation consumer wearable/device. You aren't just placing components; you are architecting a complex ecosystem of Cellular, Wi-Fi, BT, GNSS, NFC, and UWB radios within an extremely tight physical envelope. Your mission is to deliver optimal wireless functionality for the users. Responsibilities Architect the multi-radio systems, ensuring coexistence and optimal performance across a wide spectrum (sub-GHz to 8GHz+). Design and simulate custom, miniaturized antennas (LDS, FPC, or metal frame) that thrive in high-density environments. Partner with Industrial Design (ID) and Mechanical Engineering (ME) to find the "sweet spot" between aesthetic beauty and RF transparency. Develop RF strategies that prioritize ultra-low power consumption for battery-constrained performance. Own the product through EVT, DVT, and PVT phases, managing factory calibration, OTA testing, and global regulatory certifications (FCC/CE/PTCRB/GCF). Lead engagements with chipset vendors and antenna fabricators to push the limits of what is commercially possible. Requirements 10+ years in RF/Antenna design, with at least 2 full lifecycles leading a high-volum

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role We are looking for an electrical engineer to own the end-to-end power architecture of our next-generation portable devices. You will be responsible for ensuring our products are safe, efficient, and long-lasting. From selecting the right battery chemistry to fine-tuning PMIC registers and creating complex power models, you will ensure every milliwatt is accounted for. Responsibilities Power Architecture: Define the power distribution network (PDN) and select key components, including PMICs, chargers, fuel gauges, and protection ICs. Battery Management: Lead the selection, characterization, and safety validation of Li-ion/Li-poly battery cells. Power Modeling & Simulation: Develop detailed power models to predict battery life across various user scenarios (idle, peak load, standby). Charging Systems: Design and optimize wired (USB-C PD) and/or wireless charging circuits, ensuring thermal stability and fast-charging compliance. Efficiency Analysis: Conduct bench-level efficiency measurements for DC-DC converters (Buck, Boost, LDO) and optimize firmware settings for peak performance. Peak Power Management: Develop power model and management strategy to overcome system brownout. Regulatory Compliance: Ensure power designs meet globa

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role We are looking for a Member of Technical Staff, Infrastructure Compute to lead and manage large-scale GPU computing clusters powering our AI training and deployment workloads. You'll work at the intersection of systems engineering and machine learning infrastructure, owning the reliability, scalability, and efficiency of the compute platform that our research and engineering teams depend on. This is a high-impact, highly technical role suited for someone who thrives in complex distributed systems environments and cares deeply about infrastructure as a product. Responsibilities Design, implement, and maintain Infrastructure as Code (IaC) best practices to enable repeatable, auditable, and scalable cluster provisioning. Enhance and harden CI/CD deployment pipelines to ensure robust, secure, and low-latency model service delivery across production environments. Own and evolve stable training infrastructure operating at the scale of 10,000+ GPUs, including job scheduling, fault tolerance, and network fabric optimization. Partner closely with ML researchers and engineers to understand compute bottlenecks and translate them into infrastructure improvements. Monitor system health, define SLOs, and lead incident response for critical training and

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role You'll build the backend systems that make Hark's AI agent actually work — reliable, fast, and production-grade. That means the hard infrastructure problems: high-concurrency services, low-latency streaming, state management for long-running agent workflows, and the execution layer that connects model outputs to real-world actions. You are building the nervous system of an agentic product. This is a high-ownership role on a small team. You'll work directly with model researchers and platform engineers, and the systems you build will determine whether Hark feels like a slow chatbot or something genuinely new. Responsibilities Core Runtime Architecture: Design and build the high-concurrency backend services responsible for agent orchestration, tool execution, and real-time streaming. Systems Reliability: Develop robust failure-handling, retry logic, and state management for long-running agentic workflows. Platform Primitives: Architect the foundational APIs and services—including memory retrieval systems and sandboxed execution environments—that power the entire Hark ecosystem. Performance Engineering: Optimize the stack for low-latency streaming and high-throughput data processing to ensure seamless agent-user interactions. Full-Cycle Owne

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role The Embedded Software team owns the software running on Hark’s next generation of AI hardware, and we are looking for an Embedded BSP Engineer to join the team. You will own critical pieces of the firmware across the stack that powers Hark's consumer products, from board bring-up, vendor code integrations, to custom peripheral drivers and integrations, FPGA-based system integrations, and system power and performance improvements. Responsibilities Develop and maintain embedded firmware in C/C++ targeting ARM-based SoCs and microcontrollers Own BSP development, board bring up, peripheral drivers (SPI, I2C, UART, I2S etc.), and system integration Working closely with vendors on system integration and validation Working with Hardware and Software team to ensure our hardware are built and functioning to the specifications Optimize power consumption and thermal performance for always-on, battery-powered operation Debug complex hardware-software interactions using logic analyzers, oscilloscopes, and JTAG Requirements 5+ years of professional firmware or embedded systems development Strong proficiency in C and/or C++ in resource-constrained environments Experience with ARM Cortex-M or Cortex-A processors Hands-on experience wi

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role You'll build the platform that powers Hark's AI agent — the runtime, the infrastructure, the primitives. Everything that makes the intelligence actually works in production. That means owning the hard systems problems, such as low-latency streaming, reliable tool execution, memory and context at scale, and orchestration logic that holds up under real usage. You will be building the foundation that everything else runs on. This is a high-ownership role on a small team. You'll work directly with the people building the models and the people shipping the product, and the systems you build will define what's possible for both. Responsibilities Build the core runtime that powers Hark's agent platform. Orchestration, tool execution, memory retrieval, streaming, and the systems that make all of it work reliably together. Own features end-to-end, from early prototyping alongside model researchers to production deployment and iteration based on real usage. Architect the platform primitives that the rest of the product team builds on. Agent runtimes, execution sandboxes, memory APIs, streaming pipelines. Instrument and evaluate the product. Write evals, track quality regressions, and feed signals back into the model and product loop. Work across th

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: Develop rich and sophisticated user interfaces and supporting backend services; Actively participate in all projects and voice your ideas and solutions; Maintain a good programming style and stay up-to-date with the latest technology and trends. Requirements: 3+ years of experience with JavaScript - React, Node.js, Typescript and Styled Components skills; Strong database experience (SQL, NoSQL); Solid understanding of programming principles, design patterns, and web protocols; Wide experience with debugging, profiling and optimizing web apps; Experience with AI tools - Claude, Codex, etc. Fluent in English and Latvian. Benefits: International work environment and work with global development teams; Ability to deliver software that is used by millions of people across the globe; Opportunity to leverage and integrate modern AI tools into product development; Access to all Ubiquiti products; Medical insurance; Hybrid approach - office in Riga; Flexible work hours; Compensation package matching global standards, including competitive salary depending on your qualification and background (starting from 3000 up to 8000 Euro gross monthly); A-class office with all the necessities - snacks, drinks, free parking, etc!

100% Remote | Senior Frontend Engineer | Fintech SaaS Firm About the Role We’re looking for a Senior Frontend Engineer to build and maintain scalable, high-performance user interfaces for our communication platform. You’ll work closely with backend engineers, designers, and product managers to deliver exceptional user experiences while keeping performance, maintainability, and scalability at the core. What You’ll Do Develop and maintain responsive UIs using React JS, TypeScript, JavaScript, HTML5, and CSS. Collaborate with cross-functional teams to design and deliver high-quality features. Write clean, maintainable, and well-documented code. Optimize performance with caching and other best practices. Review code, mentor peers, and uphold coding standards. Debug and troubleshoot production issues promptly. Stay current with frontend trends and bring innovative ideas to the team. Job qualifications: 3–8 years’ experience in web development with a focus on scalability. Expert in React JS, JavaScript, TypeScript, HTML5, and CSS. Strong grasp of responsive design, performance optimization, and client-side session management. Familiarity with Git, CI/CD, and distributed development. Excellent problem-solving and collaboration skills. Preferred/Bonus Skills Experience with React Native or other mobile development frameworks. Familiarity with state management libraries like Redux or Zustand. Experience with modern build tools such as Webpack or Vite. A strong portfolio or active GitHub profile showcasing previous work. Why Join Eltropy? Join a high-impact team building mission-critical backend systems for financial institutions. Work on modern technology stacks in a fast-growing SaaS company. 100% remote work with a collaborative, engineering-led culture. Opportunity to own and influence core backend architecture. About Eltropy Eltropy is a rocket ship FinTech on a mission to disrupt the way people acc

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. Android Application Developer What You’ll Do Develop and maintain high-quality Android applications using Kotlin Design user-friendly interfaces that simplify complex workflows Collaborate with firmware, hardware, and backend teams to deliver features such as device setup, monitoring, and control Write and maintain unit tests, UI tests, and integration tests to ensure application reliability Participate in code reviews and contribute to a culture of learning and continuous improvement Create clear documentation to support long-term maintainability and team collaboration What We’re Looking For Experience developing Android applications with Kotlin Familiarity with Git and collaborative development workflows Ability to communicate effectively in English with a global team A collaborative mindset with curiosity, openness to feedback, and a willingness to learn Bachelor’s degree in Computer Science or equivalent practical experience If you don’t meet every requirement but are excited about this role, we still encourage you to apply. We value diverse experiences and are always eager to learn from new perspectives. Nice to Have Experience with Coroutines and Flow for asynchronous programming Familiarity with Hilt, Dagger , or modular architecture Experience writing unit tests and UI tests Knowledge of performance optimization and produ

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation. About the role: We're seeking a Design Engineer to bridge the gap between design and engineering at Replit. In this role, you'll help shape our design system implementation, architect front-end solutions, and ensure seamless user experiences across our platform. You'll be instrumental in creating the technical foundation that allows us to enable anyone with an idea to create apps. You will: Architect and implement complex UI components and systems that balance aesthetics with technical performance Lead the technical implementation and evolution of our design system (Replit UI) Create prototypes to explore new interaction models and validate design concepts Collaborate closely with product designers to bring designs to life with pixel-perfect precision Establish best practices for front-end development and component architecture Mentor engineers on design principles and implementation techniques Develop tools and processes to improve design-to-development workflow Contribute to design reviews with a focus on technical feasibility and implementation Champion accessible, responsive, and performant user interfaces Required Skills & Experience 8+ years of experience in front-end development with a strong design sensibility Expert-level knowledge of HTML, CSS, and JavaScript/TypeScript Deep experience with modern front-end frameworks (React preferred) Strong understanding of design systems and component-based architecture Experience implementing complex UI animations and interactions Proven ability to translate design concepts into production-ready code Strong communication skills to effectively collaborate with both design and engineering teams Experience with accessibility standards and best practices Bonus Qualificati

Capco France recherche un·e Senior React Developer pour accompagner les acteurs des secteurs financiers dans le développement et l'évolution d'applications web modernes, performantes et accessibles. Au sein de notre Practice Technology, Product & Engineering, v ous interviendrez sur des problématiques de développement frontend, d'architecture applicative et d'expérience utilisateur, en étroite collaboration avec des équipes pluridisciplinaires réunissant développeurs, UX/UI Designers, Product Owners et experts techniques répartis dans plusieurs pays. Vous contribuerez à la conception de solutions robustes, réutilisables et maintenables, avec une attention particulière portée à l'accessibilité web, à la qualité du code et aux bonnes pratiques de développement. Vos missions : Concevoir, développer et maintenir des applications web modernes avec React 19 et TypeScript 7 , en privilégiant des architectures frontend évolutives, performantes et maintenables. Contribuer aux choix d'architecture et à l'évolution d'une bibliothèque interne de composants basée sur React Aria, en garantissant leur réutilisabilité et leur cohérence. Placer l'accessibilité web au cœur du développement, en appliquant les standards et bonnes pratiques dès la conception jusqu'aux tests et aux revues de code. Collaborer avec les équipes UX/UI pour intégrer les maquettes Figma, développer les interfaces et assurer les interactions avec les API backend Java. Garantir la qualité des développements grâce aux tests unitaires, d'intégration et end-to-end, aux revues de code et à la contribution aux processus CI/CD, en collaboration avec les équipes DevOps. Votre profil : Une expérience confirmée en développement frontend avec React , TypeScript 6 ou 7 et JavaScript , ainsi qu'une bonne compréhension des architectures de composants, de la gestion d'état et des applications web complexes. Une expertise dans l

Yext (NYSE: YEXT) is the enterprise agentic marketing platform. Built on the world's most comprehensive structured data platform for local businesses, Yext gives brands and their partners the visibility intelligence to win every moment of discovery – across AI and traditional search. Yext's API-first architecture connects structured data to APIs, MCP servers, and generative interfaces, so partners and developers can build purpose-built experiences on the same infrastructure powering Yext's own products. Thousands of brands and digital marketing partners in financial services, healthcare, retail, hospitality, and food rely on Yext to manage, measure, and optimize visibility at scale. For more information, visit yext.com . Yext is looking for a detail-oriented, proactive, and technically adept Platform Consultant to join our dynamic Services team. In this role, you will serve as a Yext product expert, working closely with clients to configure the platform, manage data, and deliver exceptional solutions. As a customer-facing team member, you will play a key role in executing implementation tasks, managing project deliverables, and ensuring effective communication with both clients and internal stakeholders throughout the project lifecycle We value individuals who are fast learners, team contributors, strong communicators, and problem solvers. Ideal candidates have experience configuring or implementing B2B technology, can build positive relationships, and quickly learn the parts of our business. What You'll Do Platform Consultants are Yext technical experts. We expect our Platform Consultants to: Lead large projects and client accounts as one of our client-facing roles on the Expert Services team (technical project management). Advise customers on the application of our technology to achieve brand visibility results (consulting and solution architecture skills) Work within our product and cross-functionally with Engineers, Designers, and o

Who We Are HP IQ is HP’s new AI innovation lab. Combining startup agility with HP’s global scale, we’re building intelligent technologies that redefine how the world works, creates, and collaborates. We’re assembling a diverse, world-class team—engineers, designers, researchers, and product minds—focused on creating an intelligent ecosystem across HP’s portfolio. Together, we’re developing intuitive, adaptive solutions that spark creativity, boost productivity, and make collaboration seamless. We create breakthrough solutions that make complex tasks feel effortless, teamwork more natural, and ideas more impactful—always with a human-centric mindset. By embedding AI advancements into every HP product and service, we’re expanding what’s possible for individuals, organisations, and the future of work. Join us as we reinvent work, so people everywhere can do their best work. About The Role As an Offensive Security Engineer within HP IQ’s Product Security team, you will partner closely with engineering teams to identify, validate, and mitigate security risks across the product lifecycle. You’ll influence design decisions, embed security into development workflows, and continuously assess attack surfaces to guide and enhance secure development. What You Might Do Lead penetration tests and security assessments for product and feature releases. Conduct continuous security engagements, proactively identifying vulnerabilities and driving remediation to closure. Advise engineering and product teams on remediation strategy, validating fixes and tracking measurable improvements to security posture over time.​​​​​​​​​​​​​​​​ Assess attack surfaces across internet-facing services, APIs, and device interfaces (Wi-Fi, BLE, USB). Perform threat modeling and security architecture reviews that directly shape product decisions. Define and lead end-to-end risk reduction initiatives with internal and external stakeholders, aligning offensive findings to strategic security investments.​​​​