Top Design Engineer Jobs in Seattle, WA

Lead technical design and delivery of PLC-based control systems, including panel layouts, wiring, network architecture, BOMs, and documentation. Provide technical leadership, mentor junior engineers, coordinate across disciplines, resolve RFIs/design conflicts, and support commissioning and troubleshooting while ensuring compliance with codes and company standards.

Lead design and delivery of PLC-based control systems for building and industrial automation: create PLC I/O architectures, panel layouts, wiring diagrams, network designs, BOMs, and construction documentation; coordinate across disciplines, support commissioning/troubleshooting, perform QA/QC, and mentor junior engineers.

Lead technical design for complex building automation and DDC control systems, mentor senior engineers, enforce design standards, review deliverables, coordinate with project teams, support commissioning and QA/QC, and drive continuous improvement of design processes and documentation.

Simulate and optimize ultra high-speed PCB channels (112G+ SerDes), guide digital hardware designers using simulation and measurements, design PCB test boards, document results, participate in design reviews, and improve SI processes while collaborating cross-functionally.

Analyze and optimize Unreal Engine 4 code (primarily CPU, possibly GPU), recommend UE4 content/script performance improvements, fix bugs, support design team tooling (C#), and deliver measurable frame-rate improvements for shipped console/PC titles.

Build web and client tools to process and visualize computer-vision data from the Microsoft Pix app, verify app scenarios (automated and manual), and support research and tooling for data collection and analysis.

Implement and maintain build/release systems for game development: automate builds, deployments, source control, CI/CD, monitoring, reporting, and logging in a VSTS/Azure environment; support multiple platforms and projects and resolve production issues.

Design and execute automated and manual UX tests across the full service lifecycle. Code automation in .NET/C#/Selenium, use JavaScript, and test accessibility, localization, and related QA areas. Collaborate on design, implementation, deployment, and produce independent test ideas and solutions.

Design, develop, and maintain Business Objects and stored procedures for an Azure/HTML5 system. Contribute to SQL database design, integrate with .NET/C# web services, participate in SDLC, testing, UI/UX, and collaborate with onshore/offshore teams in an Agile environment.

Design, develop, and analyze moderately complex software systems (operating systems, applications, network products). Implement solutions using C# and .NET, with exposure to big data/telemetry. Contribute to processes and methodologies, assist with assignments and schedules, and collaborate with stakeholders. Requires strong communication and relevant technical skills.

Develop and implement client-side game features in an existing C# codebase across mobile, desktop, and console platforms. Collaborate with designers, artists, and engineers to design, document, optimize, and deliver cross-title game features and shared libraries. Produce functional requirements, consult with project leadership, and support multiple platforms and projects.

Design and develop complex software systems (OS, applications, network products). Create project plans, functional specifications, and schedules. Design and analyze programs and systems, define product requirements and enhancements. Build web and native components using C#, XAML, JavaScript, Angular/Bootstrap, and deploy/manage services in Azure.

Design and implement reusable, testable UI components and middle-tier web applications using .NET 4.5, ASP.NET MVC, AngularJS and C#. Perform integration testing, troubleshoot complex codebases, develop data access with Entity Framework, and write automated unit tests (including mocks). Work in a DevOps model and collaborate on team-owned code and testing.

Design, develop, and analyze moderately complex software systems and Windows 10 JavaScript applications. Diagnose performance issues, implement touch gesture support and rich animations, contribute to process/methodology, and support schedules for smaller projects.

Design and develop unit and functional test plans; perform repeatable testing and verification of triggers, stored procedures, referential integrity, and hardware/system specs. Modify and interpret code (batch/make files, Perl, queries, stored procs/triggers), write/modify DLLs and COM objects, and perform system-level configuration. Use test automation tools and debugging skills to report and resolve issues.

The Structures Design Engineer will design, analyze, and oversee the build of rocket structures, collaborating within a small team on high-performance aerospace projects.

Design and analyze high-speed analog/mixed-signal circuits, create layouts, develop testing plans, and support design methodologies for telecom networks.

Senior mechanical design engineer responsible for designing and documenting semiconductor test hardware (contactors, sockets, alignment frames), performing FEA/thermal/motion analyses, supporting NPI and prototype builds, managing PDM/EC0/BOM processes, collaborating with manufacturing and suppliers, and providing technical leadership to ensure performance, reliability, and manufacturability in high-volume test environments.

Lead mechanical/electromechanical design for tankless water heaters and boilers: create 3D CAD models and GD&T drawings in PTC Creo, develop/modify heat exchangers, build and test prototypes, root-cause system failures, define component requirements, work with suppliers, and implement manufacturing processes (BOMs, assembly drawings, QC).

Responsible for developing mechanical test equipment, leading design efforts, performing FEA and thermal analyses, and maintaining product documentation. Collaborates with cross-functional teams, and surveys materials and vendors for optics activities.

The role involves designing electromechanical solutions for telecom systems, focusing on mechanical designs, thermal management, and product development. Responsibilities include overseeing prototype builds, collaborating with teams, and applying best practices in engineering.

Create competitive commercial AV system designs and bid documentation from construction drawings and specifications. Produce shop drawings, pull sheets, and technical documentation; identify scope gaps and risks; collaborate with sales and engineering to deliver technically sound proposals and support engineering work between bids.

Design analog and mixed-signal power management ICs using sub-micron BiCMOS/DMOS technologies. Perform circuit synthesis, simulation, and layout supervision; support ATE development with DFT methods; assist applications/evaluation and customer support. Ensure ESD, latch-up, reliability, and IC qualification requirements are met.

This role involves designing analog and mixed-signal ICs for Power Management Products, circuit synthesis, and supporting design and testing efforts.

Develop next-generation ASICs for Starlink, evaluate architectural trade-offs, implement RTL designs, and ensure verification with teams.