Developer Jobs in Lake Forest, CA

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Today

Senior Software Engineer

Advantest Lake Forest, CA

Lake Forest, CA

Today

Full time Senior .NET .NET Core

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Job Description

Advantest Test Solutions (ATS) builds high-performance, cross-platform software platforms that support semiconductor test systems. In this Senior Software Engineer role, you will design, develop, and own core platform capabilities, bringing customer-facing technical execution across SLT, Burn-In, and HPC environments.

What you’ll do

Design, develop, and maintain high-performance software platforms and products for on-premises and hybrid deployments
Modernize legacy software components into a scalable, production-ready architecture
Build cross-platform server and terminal applications for Windows, Linux, and macOS, including work with the OneImlx.Terminal framework
Apply deep expertise in test program development using the ActivATE® test platform system across the SLT, BI, and HPC ecosystem
Lead software design and implementation across collaboration with Electrical, Mechanical, and Thermal engineering, including creating an ActivATE360® SDK environment for device and instrumentation driver development
Develop software, drivers, and test programs for advanced silicon targeting for SLT (System Level Test), Burn-In, and HPC (High-Performance Computing)
Engineer control, communication, and data-flow software across mechatronic and semiconductor test subsystems
Design and implement SCAN execution and vector conversion pipelines spanning multiple digital pin-card configurations to ensure correctness, scalability, and performance
Develop distributed systems for high-throughput telemetry, messaging, and data pipelines
Work extensively with networking and communication protocols including TCP/IP, UDP, HTTP, and gRPC
Actively code, design, document, review, and support production-quality software
Serve as a technical interface with customers and internal cross-functional teams
Support on-site deployments and complete occasional domestic and international travel (10–20%)

Requirements

Bachelor’s degree in Computer Science, Computer Engineering, Software Engineering, or a related field (M.S. preferred)
7+ years of software development experience, including 5+ years with C# and .NET
Strong expertise in the .NET ecosystem and cross-platform development
Proficiency with C#, C++, Python, SQL, and NoSQL
Experience with Apache Pulsar, Microsoft Azure, and distributed messaging systems
Strong background in multithreading, asynchronous programming, and high-performance systems
Hands-on experience building and deploying on-premises and hybrid software platforms
Demonstrated ability in large-scale data flows, telemetry throughput optimization, and system-level design
Strong technical design, documentation, and communication skills
Willingness to work onsite in Lake Forest, CA 92630

Technologies you may work with

C#, .NET, C++, Python, SQL, NoSQL
Apache Pulsar, Microsoft Azure
TCP/IP, UDP, HTTP, gRPC
OneImlx.Terminal
ActivATE®, ActivATE360®, ActivATE® test platform system, ActivATE360® SDK
xUnit, FluentAssertions, TDD
Playwright, Blazor
SCAN, vector conversion

Preferred / plus qualifications

Prior experience with semiconductor test systems and testers
Experience developing or working with semiconductor test IDEs
Familiarity with ActivATE™ and/or the Advantest 93000 SOC platform (SmarTest)
Experience with digital test, SCAN, pattern execution, and vector-based test flows
Experience with modern test frameworks and practices including xUnit, FluentAssertions, TDD, Playwright, and Blazor

Advantest ATS also expects strong written and verbal communication skills, along with the ability and willingness to travel domestically and internationally, sometimes on short notice.

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