High Speed Interface Io Design Engineer jobs in Seoul – Browse 344 openings on RoboApply Jobs

High Speed Interface Io Design Engineer jobs in Seoul

Open roles matching “High Speed Interface Io Design Engineer” with location signals for Seoul. 344 active listings on RoboApply Jobs.

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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesIntegrate and validate High-Speed Interface (HSI) IP blocks within System on Chip (SoC) frameworks while assisting in the physical implementation process.Configure HSI IP blocks to optimize their performance during integration into SoC architectures.Conduct performance evaluations at the chip top level, including bus and memory bandwidth simulations, as well as FPGA prototyping.Perform testing, debugging, and troubleshooting of silicon, collaborating closely with HSI IP vendors to ensure optimal functionality.

Oct 3, 2025
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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesDevelop and design high-speed interface controller IP.Conduct performance analysis and testing at both IP and chip-level including bus and memory bandwidth simulations.Perform debugging, troubleshooting, and testing of silicon components.Minimum QualificationsThorough understanding of interface protocols (e.g., buses or high-speed interfaces with flow control and retransmission schemes).Proven experience in RTL design, logic synthesis, verification, and timing closure.Solid knowledge of buffer and CDC design is crucial for effective interface design.Preferred QualificationsIn-depth understanding of high-speed interface standards such as PCIe, LPDDR, HBM, Ethernet, or UCIe.Strong grasp of high-speed interface technologies such as SERDES, channel encoding, OSI-7 layer architecture, and equalization techniques.

Dec 12, 2025
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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesDesign and implement the NPU Management Interface (MI) firmware/software to facilitate seamless communication between Host/BMC and NPU devices.Develop and sustain MCTP, PLDM, and custom MI command handling for comprehensive out-of-band NPU management, monitoring, and control.Craft device-management features utilizing SMBus/I²C, I3C, PCIe VDM, or custom sideband channels.Integrate MI capabilities into the NPU firmware, including:Health and error reporting mechanismsThermal and power telemetry systemsRuntime status, utilization metrics, and intricate debug informationEnsure adherence to industry standards through thorough spec-driven design, implementation, and validation.Assist in bring-up processes, interoperability testing, rack-scale platform integration, and system-level validation.Formulate test strategies and validation tools aligned with MCTP and PLDM specifications.Conduct protocol compliance testing, regression testing, and interoperability verification.

Dec 12, 2025
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companydaangn logo
Full-time|On-site|SEOUL

Join the daangn Team!At daangn, we strive to create an environment where individuals can grow alongside the company. The daangn recruitment team is here to help you connect with amazing colleagues and tackle exciting challenges together. About the iOS Engineer RoleThe iOS engineers at daangn are part of a dedicated chapter, collaborating closely within their teams. Within the iOS chapter, we prioritize building high-quality applications, as they are the first interaction point for our users. We take great responsibility in ensuring stability and delivering a polished service.The iOS chapter places equal importance on both company growth and individual development. Through activities such as Engineering Day, code reviews, and tech talks, we share our technical skills and domain knowledge while collectively brainstorming improvements. We also host study groups and seminars to foster a better development culture and support personal growth in iOS development.Your Responsibilities[Used Goods Trading Team]Develop a location-based used goods trading service targeting users in Korea and globally.Manage over 10 million products worldwide, creating solutions that address user issues and align with company goals.Enhance the user experience in used goods trading by experimenting with diverse ideas based on data. [Mobile Team]Operate new and shared services to make daangn Market the best local app.Support the easy development of various services and enhance productivity through improved development environments.Design a sustainable architecture for building a super app and tackle various technical challenges. [Common Responsibilities]Participate in iOS chapter activities such as Engineering Day and Tech Talks.Develop various features contributing to daangn services.Who We Are Looking ForIndividuals with at least 3 years of experience in iOS development.People who enjoy designing and implementing new features.Candidates with a user-centric mindset over a purely technical approach.Self-motivated individuals who excel in communication.Familiarity with writing testable code.Preferred QualificationsExperience in developing large-scale services.Contributions to iOS-related open-source projects or personal open-source projects.Experience in global services.Experience in designing code using Dependency Injection (DI).Additional InformationFull-time employment includes a 3-month probation period.We prioritize applicants with disabilities or veterans according to the Employment Promotion and Rehabilitation Act.Tools we currently use include: RxSwift, FlexLayout, PinLayout, and many others.

Feb 20, 2026
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companySpeechify logo
Full-time|On-site|Seoul, South Korea

Role Overview Speechify is hiring an iOS Core Product Software Engineer in Seoul, South Korea. This role focuses on developing and maintaining software for the iOS platform, helping users convert text to speech with ease. What You Will Do Build and improve core features for the Speechify iOS app Work closely with teams across design, product, and engineering Contribute to solutions that make the user experience smoother and more effective Maintain and update high-quality software products Location This position is based in Seoul, South Korea.

Apr 25, 2026
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companyToss Careers logo
iOS Developer

Toss Careers

Full-time|On-site|Seoul

Role overview Toss Careers seeks an iOS Developer based in Seoul to support the creation and upkeep of mobile applications. The position centers on adding features that enhance user experience and drive engagement. What you will do Design, build, and maintain iOS applications Collaborate with teams from different disciplines to plan and deliver new features Participate in all phases of the app development lifecycle

Apr 23, 2026
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companySanDisk logo
Full-time|On-site|Seoul

Join SanDisk, a global leader in flash storage solutions, as a Senior Technologist specializing in Datapath Design and Circuit Design Engineering. In this role, you will be responsible for designing and implementing high-performance VLSI circuits, contributing to innovative storage solutions that impact millions of users around the world.As part of a dynamic team, you will collaborate closely with cross-functional teams to drive the development of cutting-edge technologies. This is an exciting opportunity to leverage your expertise in VLSI design and make a significant impact in the industry.

Nov 5, 2025
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companySanDisk logo
Full-time|On-site|Seoul

Role SummaryAs a Principal Engineer in Systems Design Engineering, you will take full ownership of the end-to-end PCIe system design for our NVMe SSD product line. This encompasses client laptops and enterprise servers, guiding the process from PHY/MAC review through ASIC/SoC integration, PCIe SFR/register analysis, and establishing firmware design guidelines that ensure robust link training, link transitions, and low-power behavior. This pivotal role sits at the intersection of PCIe specification compliance, NVMe operational behavior, firmware architecture, platform interoperability, and power/performance optimization.Key Responsibilities· Lead the architecture of system-level PCIe Gen5/Gen6 from an NVMe SSD endpoint perspective.· Define and oversee PCIe + NVMe integration across various SSD products.· Conduct PHY + MAC IP reviews, establishing integration requirements and constraints.· Manage SoC/ASIC integration, including clocks, resets, power domains, straps, lane mapping, and sidebands.· Develop PCIe SFR + firmware guidelines covering flow control, LTSSM observability, power states, and error handling.· Oversee link and low power transitions, including DLRM, L1, L1SS, L0p, ASPM, clock-down, and APST coordination.· Facilitate bring-up and debugging processes: enumeration, speed negotiation, width detection, stability, and AER/error recovery.· Tune customer requirements focusing on latency/power, performance, reliability, and consistency.· Provide expert knowledge regarding PCIe configuration and extended capability registers.· Act as the technical authority for cross-team and customer escalations.Detailed Responsibilities (End-to-End PCIe for NVMe SSD)1. PHY/MAC IP Review (System Design Perspective)· Understand criteria for PHY/MAC/controller IP, including Gen5/Gen6 readiness and equalization capability.· Review IP documents for compliance features and link speed support.· Specify platform-facing requirements such as retimer/redriver compatibility.2. ASIC/SoC Integration Ownership· Integrate PCIe subsystems focusing on clock handling, reset behavior, and power domains.· Define lane policies for NVMe, including width detection and recovery strategies.

Feb 24, 2026
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companytosscareers logo
Full-time|On-site|Seoul

About the Team You Will Join The iOS Developers at Toss operate within a matrix structure that encompasses various silos, teams, and the iOS chapter. At Toss, services and products are developed within siloed teams of 6-8 diverse professionals, fostering an environment of autonomy akin to that of a small startup. Apart from the silos, there is a dedicated team focused on creating shared modules within the iOS code, emphasizing deep technical considerations, accessibility for individuals with disabilities, and security aspects, ensuring the creation of services truly for the customer. The iOS chapter hosts an Engineering Day every Thursday, allowing members to step outside their silos to engage in active discussions about technology, share development expertise, and conduct code reviews together. Your Responsibilities Upon Joining Contribute to the development of Toss’s super app, which offers hundreds of services including money transfers, asset management, credit management, loans, insurance, authentication, and payments. Work on innovative financial services being developed by Toss, such as Toss Bank and Toss Securities. Continuously challenge yourself and conduct various experiments to develop a safe and fast iOS application to enhance user financial experiences. Utilize a design and automation system that generates screens from defined models and a fully Swift project split into over 150 modules, allowing you to concentrate on core logic during development. Who We Want to Work With Ideal candidates will have over 3 years of experience in iOS development or possess equivalent skills. Proficiency in Swift development and experience with RxSwift are highly desirable. An understanding of iOS and Apple's design philosophy (HIG) is preferred. Strong comprehension of network and encryption algorithms is required. Familiarity with performance and stability improvement tools such as Instruments is advantageous. Resume Tips Please share any experiences where you demonstrated ownership and led your own projects or overcame challenging technical problems. We appreciate familiarity with testable code practices and experience in automation for testing and deployment. Let us know if you have experience in developing large-scale services. It's worth noting that some of our team members began their journey with RxSwift at Toss; we value solid fundamentals, logical thinking, and the ability to implement code more than specific technical stacks or frameworks. Technologies Used at Toss Multi-module App, Micro Feature Architecture, Example (Micro) App Swift Concurrency, RxSwift, Combine AutoLayout, FlexLayout, and more.

Mar 9, 2026
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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesIntegrate and validate IP blocks within the System on Chip (SoC) architecture while assisting in the physical implementation process.Formulate specifications, architecture, and operational scenarios at the SoC level.Comprehend standard interface specifications (e.g., PCIe) and chip operational scenarios to effectively configure integrated IP blocks.Conduct performance analyses through chip-level simulations focusing on bus and memory bandwidth, alongside FPGA prototyping.

Oct 3, 2025
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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesEstablish, strategize, and execute comprehensive verification plans at both block and system levels.Draft and assess test plans, while developing effective test harnesses and sequences.Ensure the successful completion of the design verification process by achieving predefined metrics related to the test plan, functional coverage, and code coverage.Engage closely with the Design team to troubleshoot, identify root causes, and rectify functional discrepancies within the design.Work collaboratively with cross-functional teams, including Design, Modeling, Emulation, and Silicon Validation, to uphold the highest standards of design quality.Essential QualificationsBachelor's degree in Electrical Engineering, Computer Science, or a related technical discipline.Over 5 years of hands-on experience in block and system level verification employing SystemVerilog/UVM methodologies.Demonstrated expertise with Electronic Design Automation (EDA) tools and proficiency in scripting languages such as Python, Perl, or Shell for verification tool development.Experience in architecting and implementing Design Verification infrastructure, encompassing the entire verification cycle from planning to successful closure.Desirable QualificationsMaster’s degree in Electrical Engineering, Computer Science, or a closely related technical field.Proficiency in creating UVM-based verification environments from the ground up.Expertise in developing Python-based verification environments, including tools like cocotb.Experience in IP or integration verification for high-speed interfaces such as PCIe, UCIe, UALink, and Ethernet.Familiarity with verifying ARM/RISC-V-based sub-systems or SoCs.Strong programming capabilities in Python.Exceptional written and verbal communication skills.Contact InformationFor inquiries, please reach out via email: recruit@furiosa.ai

Dec 12, 2025
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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesAssess the Power, Performance, and Area (PPA) metrics of our designs during the chip architecture planning phase.Conduct synthesis, perform logic equivalence checking, develop SDC and UPF, and execute static timing analysis.Collaborate effectively with design houses to ensure optimal project outcomes.

Oct 3, 2025
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company
Full-time|On-site|Seoul HQ

Key ResponsibilitiesDevise and execute comprehensive verification strategies for block/IP/SoC, establishing test benches to facilitate effective verification at various levels.Create and implement functional testing protocols based on the established verification test plans.Lead the design verification process to successful completion, adhering to defined metrics for functional and code coverage.Analyze, troubleshoot, and rectify functional discrepancies in the design, working closely with the design team.Engage in collaboration with cross-disciplinary teams, including Design, Modeling, Emulation, and Silicon Validation, to ensure superior design quality.

Oct 3, 2025
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company
Full-time|On-site|Seoul HQ

Join Furiosa AI as a Software Engineer specializing in Low Level Programming Interface & Runtime. In this role, you will develop and optimize low-level software systems that enhance the performance and efficiency of our cutting-edge AI technology.

Apr 10, 2026
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companyToss logo
Full-time|On-site|Seoul

Welcome to Toss Place! At Toss Place, we are dedicated to ensuring the success of all entrepreneurs. In just two years since our launch, we have surpassed 100,000 merchant partnerships, redefining the payment landscape and addressing challenges faced by physical stores. We create solutions that make operations simpler for business owners and enhance payment experiences for customers. By proposing innovative solutions that break the mold of traditional POS systems and payment terminals, we are transforming the entire retail experience beyond mere transactions. The Product Designer Role at Toss Place As a Product Designer at Toss Place, you will take full ownership and responsibility for solving problems experienced by three key user groups: business owners, end customers, and device sales agents. You will be involved in all facets of delivering value to customers, including UX, UI, marketing, and branding initiatives. We expect you to challenge preconceived notions about payment devices and POS systems to create unprecedented user experiences. Given our focus on physical retail, your role will not be confined to screens alone; you will engage directly with the field to gain a holistic understanding and solve problems in real-world settings, offering you a vibrant and dynamic experience. Throughout this process, you will collaborate with top experts across various fields, including UX researchers, hardware designers, data analysts, and business strategists. Qualifications We Are Looking For We need someone who has experience in identifying customer needs based on quantitative or qualitative data rather than their own assumptions. You should have hands-on experience in designing solutions that meet customer requirements and successfully launching them to the market. To achieve optimal customer experiences, you must possess strong logical communication skills to persuade and collaborate effectively with team members. Proficiency in UI design tools like Figma and Framer is essential for creating well-structured and aesthetically pleasing App/Web UIs. Experience with structuring UI and consistent UX for complex information, technologies, and policies is a plus. The ability to evaluate and improve your designs through data is advantageous. Experience in POS or kiosk services is not mandatory; we value your insights gained from diverse fields. Please Note You can apply for the Product Designer role in two ways by selecting your preferred method after clicking the 'Apply' button. Apply easily without a portfolio: If you have one solid case study that showcases your skills, prepare it according to five questions we provide, and you can apply without a formal portfolio. Apply with an existing portfolio: If you have a prepared portfolio, you can submit it directly with your application.

Mar 9, 2026
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companyMiso logo
Full-time|On-site|Twin Tree Tower HQ (Seoul, Korea)

Mission‘We develop technology that enhances everyday offline experiences’Miso's mission is to create technology that improves real-life experiences for our users. We strive to make the offline lives of those who use Miso better.In a nutshell, Miso embodies the culture of “working diligently on the right things.”To achieve this, we prioritize our customers, articulate our actions, and uphold the highest standards in everything we do.[What is Miso?]Miso stands as Korea's leading O2O home service platform.Under the vision of delivering 'Hotel-like service at home', we aim to provide numerous experiences that enhance offline living. Just as people turn to Amazon or Coupang for products, they can easily and swiftly resolve cleaning, moving, and remodeling through the Miso app.Since launching in 2016 with home cleaning services, Miso has expanded its offerings to include moving, cleaning, pet-sitting, and interior design. We have experienced 2X growth each year and achieved the status of the top home assistant service within just two years of launching. Currently, we operate over 180 services. If you want to be part of our explosive growth journey, join Miso.With a total investment of approximately 13 billion KRW (including 3.1 billion KRW from Y Combinator, Silicon Valley's largest venture capital firm), we successfully turned a profit in 2022! With a cumulative order count of 5 million and a total transaction value of 350 billion KRW, our reorder rate stands at 85%.In January 2023, we surpassed a transaction value of 20 billion KRW! We continue to grow impressively at around double each year.[Hear from Miso Makers on our official blog!]- Miso Blog: https://miso.kr/about/misoculture[Resources for Aspiring Miso Makers]- Notion https://miso.notion.site/miso-2e80a5fc101c41788bf5b77391daa329?pvs=4- YouTube https://www.youtube.com/channel/UCMQbTf2GkerkDYxvpMkiIUw- CEO Interview (EO Channel) https://www.youtube.com/watch?v=kCTq6pQpdiQ&t=617s[Miso Marketing Team]As with all teams at Miso, our marketing team's primary role is to ensure that our service becomes a great product. We believe that exceptional products can lead to great brands.[Responsibilities at Miso]This role encompasses two key aspects: delivering clear messaging and reaching a broader audience. As a Content Designer, you will engage in the design of all content published by Miso, collaborating with marketers to enhance the appeal of the content and optimize it for greater customer outreach.Collaborate with the marketing team to create visually compelling content.Utilize data and analytics to optimize content strategies for maximum engagement.

Oct 2, 2025
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companyzoyi logo
Full-time|On-site|Seoul

Join Our Team! The Product Design team at zoyi is dedicated to crafting product experiences that our customers will truly cherish. From the ideation phase through design and post-launch enhancements, we are involved in the entire lifecycle of our products.We closely observe our customers to define the essence of hidden challenges, rather than just visible needs. By organizing complex contexts into clear structures and eliminating the unnecessary, we achieve meaningful simplicity.We collaborate closely with development, business, and customer experience teams to create solutions that harmonize user value and business objectives.We believe that design is not merely an end product but a continuum of decision-making, involving hypothesis formulation, validation, and learning.

Apr 15, 2025
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companyCLO Virtual Fashion logo
Full-time|On-site|Seoul

CLO Virtual Fashion is at the forefront of the digital fashion revolution, offering a comprehensive suite of services from concept and design to manufacturing, marketing, fitting, and styling, all built on innovative 3D garment simulation algorithms. Founded in 2009, we are dedicated to creating a new ecosystem in digital fashion. Utilizing advanced software like CLO, Marvelous Designer, and Jinny, along with our specialized platforms CLO-SET and CONNECT, we engage in every aspect of garment creation to establish efficient and sustainable workflows. Our solutions enable seamless integration of physical and digital garments within the CLO ecosystem. As a leader in the global digital fashion market, CLO Virtual Fashion operates 14 offices across 12 countries including Asia, North America, Europe, and South America, continually expanding our reach based on a diverse client base worldwide. Position OverviewAs a 3D Designer specializing in Marvelous Designer, you will educate users on effective software utilization and create diverse content to assist them. You will also research rapidly evolving trends in Computer Graphics, contribute to the development of Marvelous Designer's features, and produce necessary assets for the software.Your mission will involve understanding Marvelous Designer's business, staying up-to-date with the latest trends and platform requirements to enhance the user experience. We look forward to your application. Hiring Process[Application Review] → [First Interview] → [Second Interview/Reference Check] → [Compensation Discussion] → [Final Offer]Please submit the following with your application:- A cover letter and resume detailing your relevant experience (required)- A well-organized portfolio showcasing your past projects and responsibilities (required)- Include the specific CG/3D tools you are proficient in on your application or portfolio.

Mar 20, 2026
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companyToss logo
Full-time|On-site|Seoul

Join Our Team The Industrial Designer at Toss collaborates with external developers and the Device Team, forming a vital part of our Industrial Design team. Our Industrial Design team is dedicated to innovating products in the emerging offline payment industry. You will work closely with Product Designers, QC Managers, Operations Managers, and other colleagues to successfully launch top-tier payment devices. What You'll Be Doing Designing payment devices and various physical products for Toss Place. Establishing and enhancing a user-friendly and consistent product design identity. Conceptualizing suitable forms and usability for products, bringing them to life. Who We’re Looking For A comprehensive experience in product design through to mass production is essential. Understanding of manufacturing processes, including basic principles of mold design and mechanical engineering, is required. Proficiency in 3D tools and rendering software is a must. Experience with solid modeling software like NX, CATIA, or CREO is a plus. Ability to present logical reasoning behind design choices to persuade colleagues is essential. You should be proactive in setting goals and delivering results. Portfolio Submission Tips Please include a portfolio that effectively showcases your design solutions and considerations for manufacturability. Important Note We require a portfolio for the Industrial Designer position. Your Journey to Joining Toss Place Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Discussion > Final Offer & Onboarding

Apr 1, 2026
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companyCanva logo
Full-time|On-site|Seoul

Join Canva as a Design Lead in Korea, where you will spearhead innovative design projects and mentor our talented design team to ensure the highest quality output. This role provides a unique opportunity to shape the creative direction of our products and enhance user experience through exceptional design.Your leadership will be vital in fostering a collaborative environment that encourages creativity and experimentation. You will work closely with cross-functional teams to develop design strategies that align with our business objectives.

Apr 7, 2026

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