Full-Time

Senior Test Engineer

Posted on 11/23/2025

ASML

ASML

10,001+ employees

Manufactures photolithography systems for semiconductors

Compensation Overview

$132k - $220k/yr

Company Does Not Provide H1B Sponsorship

San Diego, CA, USA

In Person

Category
QA & Testing (2)
,
Requirements
  • Requires Minimum of BS in Computer Science, Computer Engineering or other related Engineering/Science fields.
  • Strong scripting knowledge (Python preferred).
  • Identifying the test gaps, documenting them and creating automated script to fix these test gaps.
  • Minimum of 5 years in developing and maintaining test approach for complex systems.
  • Experience in designing software test strategies for a complex multi-processor distributed control system is a plus.
  • Creating test designs and determine whether these should be added to the Domain Test Coverage.
  • Creating TAR (to document test results) document and drive through review process.
  • Having system engineering experience is preferred.
  • Strong Python scripting knowledge.
  • Good understanding of advanced software test strategies.
  • Strong debugging and troubleshooting knowledge/Experience.
  • Understanding the product and reviewing the design documents to provide necessary test cases.
  • Experience working in embedded software, systems and testing environment.
Responsibilities
  • Test Specification: Creation and maintenance of test cases in the Domain Test Specification.
  • Test Specification: Creation of test cases in the Delivery Test Specification, resulting from the Test Approach for the Delivery involved.
  • Test Approach: Create and maintain a Test Approach for the specific deliveries of the project the domain is involved in.
  • Test Approach: Align the Test Approach to the Test Strategy for the domain.
  • Test Approach: Identify the risks for the delivery and the applicable Test Items from the Domain Test Strategy and select test cases from the Domain Test Specification based on this.
  • Test Approach: Selects the test cases to be added to the Delivery Test Specification.
  • Test Approach: Identify the test cases that need to become part of the next test level and communicate this to the SW Lead Tester of that next test level.
  • Test Design: For the identified risks and Test Items, create test designs that do not exist yet and determine whether these also should be added to the Domain Test Strategy.
  • Test Design: In case test designs exist, update these when needed.
  • Test Design: Select the test cases resulting from the test designs that are candidates to be added to the Domain Test Specification and align this with the Domain Test Architect to extend the regression test set for the domain.
  • Test Execution: Execute test cases related to the delivery (e.g. for integration delivery to QBL, service pack qualification or patch delivery / qualification), as selected / specified in the Delivery Test Approach.
  • Test Result Analysis: Analyze the results from the test execution and compare them to the requirements. In case of issues, inform SW Lead Tester and raise issue (for appropriate owner).
  • Test Result Analysis: Provide analysis reports to SW Lead Tester as input for the Delivery TAR.
  • Test Result Analysis: Analyzing the issues (patch hits) from both factory and field and providing test solution to catch the issues before release.
  • Release deliverables: Provide the final TAR for the delivery, using results taken from the TAR / Test Results as provided by the SW Test Engineer and the agreed Test.Approach to create a TAR for the delivery.
  • Release deliverables: Prepares and collects Knowledge Transfer documents related to the domain, to be part of the release package.
Desired Qualifications
  • Experience in ASML or similar high-end semiconductor equipment software testing environments is a plus.
  • Experience with domain Test Architecture and strategy development is preferred.
  • Experience with regression test automation and continuous integration environments is a plus.
  • Exposure to real-time embedded systems and multi-processor distributed control systems beyond the general requirements.
  • System engineering experience is preferred.

ASML designs and manufactures photolithography systems for semiconductor manufacturing. Its main products are deep ultraviolet (DUV) and extreme ultraviolet (EUV) lithography machines that print circuit patterns on silicon wafers, with EUV enabling smaller features. The company sells these systems to leading chipmakers and earns substantial revenue from installation, maintenance, and upgrades over the machines’ lifetimes. Its goal is to help continue scaling semiconductors by leading in high-end lithography and maintaining strong relationships with customers like TSMC, Samsung, and Intel.

Company Size

10,001+

Company Stage

IPO

Headquarters

Veldhoven, Netherlands

Founded

1984

Simplify Jobs

Simplify's Take

What believers are saying

  • EUV bookings surged 86% to €7.4 billion in Q4 2025 on AI demand.
  • Record €38.8 billion backlog ensures 18-24 months revenue visibility.
  • $16 billion EUV orders from SK Hynix and Samsung in 2026.

What critics are saying

  • US and Dutch export controls cut China sales from 36% to 19%.
  • 1,700 layoffs spark protests disrupting operations since April 2026.
  • Zeiss mirror shortages delay High NA EUV ramp-up through 2027.

What makes ASML unique

  • ASML holds 83% worldwide lithography market share as of 2025.
  • ASML solely supplies EUV lithography machines using 13.5 nm light.
  • ASML's EUV enables 13 nm resolution unreachable by DUV systems.

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Benefits

Flexible Work Hours

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
Bloomberg L.P.
Apr 15th, 2026
South Korea becomes ASML's largest market with $3.2B in Q1 chip tool sales

ASML Holding's largest market shifted to South Korea in the first quarter, with shipments to the country surging to 45% of net system sales, up from 22% in the previous quarter. This represents €2.84 billion in sales, compared to €1.67 billion in the preceding three months. The increase reflects South Korean memory chip makers ramping up purchases of the Dutch company's chipmaking tools to address chronic shortages driven by the artificial intelligence boom. South Korea overtook China as ASML's top market during the quarter.

Yahoo Finance
Apr 10th, 2026
Ken Fisher invests $4.8B in ASML, raises 2026 revenue guidance to $44.1B

ASML Holding holds the seventh position in billionaire Ken Fisher's AI portfolio, with a stake valued at $4.80 billion. The Dutch company maintains a near-total monopoly in extreme ultraviolet lithography systems, which are essential for manufacturing advanced semiconductor chips below five-nanometre nodes. ASML reported an order backlog of €38.8 billion at the end of 2025, up from €35.9 billion a year earlier. The company raised its 2026 revenue guidance to €34–39 billion, representing potential year-over-year growth of 4% to 19%, driven by AI chip demand. Major customers include TSMC, Samsung, Intel and SK hynix. The company faces virtually no competition due to enormous barriers to entry, requiring multi-billion-euro investments and decades of accumulated proprietary knowledge.

Yahoo Finance
Apr 8th, 2026
ASML Q1 earnings due 15 April with $9.7B revenue expected amid US export restriction threat

ASML, the world's sole manufacturer of extreme ultraviolet lithography systems, is set to report first-quarter 2026 results on 15 April. Analysts expect earnings of $7.2 per share on revenue of $9.7 billion. The company has guided first-quarter revenue between €8.2 billion and €8.9 billion, with a gross margin of 51% to 53%. ASML closed 2025 with full-year net sales of $37.94 billion, driven by AI-related capacity expansions. Options pricing suggests traders anticipate a potential 5% swing following the report. Geopolitical risks have intensified after US lawmakers introduced legislation that could restrict ASML's sales to Chinese chipmakers. China accounted for roughly 30% of ASML's 2025 revenue. JPMorgan maintains a Buy rating but estimates the proposed restrictions could reduce earnings per share by up to 10%.

Yahoo Finance
Apr 7th, 2026
US MATCH Act draft threatens ASML's 29% China revenue with new chip equipment export controls

ASML shares fell approximately 4% on Tuesday after a draft version of the MATCH Act emerged in the US House of Representatives. The bill aims to coordinate export controls on semiconductor manufacturing equipment among US allies, including the Netherlands, to prevent China from obtaining advanced chip production tools. Citi Research analysts warned the legislation could significantly impact ASML and may have unintended consequences. Restricting sales of immersion lithography tools to China would likely limit the country's production expansion capabilities, as China lacks domestic lithography production. ASML generated about 29% of its revenue from China in 2025, whilst US equipment makers sourced roughly 30% to 40% from China last year. Citi anticipates potential retaliation from Beijing through its rare earth minerals position.

Yahoo Finance
Apr 4th, 2026
ASML plans 1,700 job cuts, triggering 1,000-worker walkout at Veldhoven headquarters

ASML Holding plans to cut 1,700 jobs as part of a restructuring effort, prompting more than 1,000 employees to walk out at its Veldhoven headquarters. The action highlights tensions between management and staff over cost reductions and job security at the critical semiconductor equipment maker. The company, trading at $1,317.23 on Nasdaq, has delivered strong returns with shares up 13.2% year-to-date and 119.1% over the past year. ASML is managing the restructuring whilst handling substantial commitments, including a $7.97 billion order from SK Hynix through 2027 and preparing High NA EUV tools for commercial production. Investors are watching whether leadership can maintain operational stability and retain key engineering talent whilst implementing cost controls, particularly given ASML's central role in the global semiconductor supply chain.

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