Full-Time

Software Engineer

Multiple Teams

Posted on 7/19/2023

Stairwell

Stairwell

51-200 employees

Cloud-based automated threat detection and response

Compensation Overview

$128k - $140k/yr

+ Equity + Benefits

Sunnyvale, CA, USA

In Person

Category
Software Engineering (2)
,
Required Skills
Data Science
Machine Learning
Java
Go
C/C++
Requirements
  • 3+ years of relevant work experience
  • Experience in software development in one or more general purpose programming languages including but not limited to: Go, Java, or C++
  • Curiosity in understanding the security space and how cutting edge technologies can shape it
  • Close familiarity with software engineering tools, software development methodology and release processes
  • Working Experience with one or more from the following: systems infrastructure, large-scale database implementation and design, machine learning, search engine ranking, and/or web scale data science.
Responsibilities
  • Assist in the design of software components, systems, and features under guidance.
  • Participate in the development, testing, deployment, and maintenance of software.
  • Help in managing project priorities, deadlines, and deliverables with guidance from senior members.
  • Learn and adhere to design techniques and coding standards, seeking advice and mentorship from team members.

Stairwell offers a cloud-based platform for automated threat detection and response by analyzing software binaries via static and dynamic analysis. It uses a library of over 4,200 YARA rules and lets security teams build custom queries to hunt threats across all files without endpoint bottlenecks. The platform runs continuously in the cloud, scalable across small to large organizations, enabling faster triage and reducing investigation costs. Stairwell aims to empower security teams, shorten threat-hunting and incident-response timelines, and cut the cost of threat assessments by providing clear visibility and reference data.

Company Size

51-200

Company Stage

Series B

Total Funding

$69.5M

Headquarters

Mountain View, California

Founded

2019

Simplify Jobs

Simplify's Take

What believers are saying

  • Emmy Linder appointed CEO July 29, 2025, to drive innovation and growth.
  • $69.5M raised from Sequoia, Accel, Section 32 fuels expansion.
  • High-profile clients Fox News, Mandiant, Sanofi validate enterprise traction.

What critics are saying

  • Microsoft Defender XDR integrates YARA-L 2.0, commoditizing Stairwell's rules library.
  • CrowdStrike Falcon's 20% EDR share erodes Stairwell's binary analysis niche.
  • Google Chronicle replicates file-centric hunting with superior BigQuery ML scale.

What makes Stairwell unique

  • Inception platform uses binary-level static/dynamic analysis with 4,200 YARA rules.
  • Evasion-resistant architecture enables recursive threat hunting on all files forever.
  • MalEval ML on Google Bigtable provides continuous rescanning without endpoint constraints.

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Benefits

Stock Options

Growth & Insights and Company News

Headcount

6 month growth

-9%

1 year growth

-5%

2 year growth

-1%
Stairwell
Jul 29th, 2025
Stairwell Appoints Emmy Linder as New CEO to Lead Next Phase of Innovation and Growth

Sunnyvale, CA - July 29, 2025 - Stairwell, a company that is redefining security using AI-powered signal intelligence focused on an enterprise's files to bring a data search approach to outmaneuver known and unknown malware in seconds, today announced the appointment of Emmy Linder as its new Chief Executive Officer (CEO).

PR Newswire
Jul 9th, 2024
Stairwell Bolsters Executive Team With Appointment Of Joe Deblasio As Vice President Of Global Sales And Customer Success

SUNNYVALE, Calif., July 9, 2024 /PRNewswire/ -- Stairwell, a cyber resilience company and provider of AI-powered threat detection and incident response platform, today announced the appointment of Joe DeBlasio as Vice President of Global Sales and Customer Success. Joe will spearhead efforts to refine sales processes and drive strategic planning across all sales activities."With malware constantly evolving to evade the latest detection techniques, enterprises continue to find themselves at a disadvantage," said Mike Wiacek, founder and CEO of Stairwell. "Stairwell was founded on the principle of evasion-resistant architecture to give enterprises an advantage they never had before. Joe's proven track record of building and executing growth strategies will be pivotal in bringing the Stairwell advantage to every enterprise."Stairwell's evasion-resistant architecture allows enterprises to quickly detect cyber attacks that evade other security offerings. With AI-powered real-time analytics, the Stairwell platform instantly applies and derives new learnings from all executables and related artifacts an organization has ever encountered, even those that have been deleted. The cloud-based platform provides unparalleled insights into historical data as well as current and potential malware threats."I couldn't be more excited about joining the Stairwell team," said DeBlasio

PR Newswire
May 23rd, 2024
Stairwell Appoints Cybersecurity Veteran, John Yun, As Vice President Of Marketing

SUNNYVALE, Calif., May 23, 2024 /PRNewswire/ -- Stairwell, a cyber resilience company and provider of AI-powered threat detection and incident response solutions, today announced the appointment of John Yun as Vice President of Marketing. Yun will spearhead the company's marketing strategy and amplify Stairwell's presence."Enterprises continue to find themselves reacting to cyber threats and struggling to get ahead," said Mike Wiacek, founder and CEO of Stairwell. "Our goal is to enable enterprises to be cyber resilient before, during, and after cyber attacks - continually strengthening their cyber defenses. John will play a pivotal role in evangelizing the values provided by Stairwell as we continue our growth trajectory."Stairwell's evasion-resistant architecture allows enterprises to swiftly detect cyber attacks that evade other security solutions. The platform offers unparalleled insights into malware and its variants, including previously removed threats. With AI-powered real-time analytics, Stairwell applies advanced detection techniques to an organization's empirical data at scale, providing comprehensive operationalized threat intelligence."What drew me to Stairwell is its innovative approach to threat detection and incident response," said Yun

PR Newswire
Jun 27th, 2023
Stairwell Now Available On Google Cloud Marketplace

MOUNTAIN VIEW, Calif., June 27, 2023 /PRNewswire/ -- Stairwell, a leading cybersecurity company that is redefining how organizations approach threat detection and response, today announced that the Stairwell platform is now available on Google Cloud Marketplace."This milestone reflects our unwavering dedication to meeting businesses where they are in order to better protect them from evolving cyber threats," said Mike Wiacek, CEO of Stairwell. "By strengthening our relationship with Google Cloud, we are leveraging the industry-leading infrastructure and expertise that Google offers, allowing us to enhance our offering and extend Stairwell's availability to a broader audience."The Stairwell platform is a cybersecurity solution that enables organizations to automate crucial parts of security operations, incident response, and threat hunting processes. By ingesting every executable or executable-like file in an organization's environment and storing it within a private, Google Cloud-based data lake, the Stairwell platform is able to perform advanced AI- and ML-supported analysis at the binary level – providing continuous and retroactive threat detection and response capabilities to its customers.Stairwell's automation addresses a significant gap in modern security tooling and empowers organizations to stay ahead of evolving threats, detect unknown attacks, and secure their supply chain while increasing team efficiency and reducing overall risk."We are thrilled to bring the Stairwell platform to the Google Cloud Marketplace, further enabling organizations to get ahead of attackers," says Eric Foster, VP of Business Development. "This allows us to help the GCP community cost effectively address key information security challenges and empower businesses to address the evolving cybersecurity landscape with our revolutionary solution for comprehensive threat detection and response."Google Cloud Marketplace lets users quickly deploy functional software packages that run on Google Cloud, allowing customers to easily start up a familiar software package with services like Compute Engine or Cloud Storage.The availability of Stairwell via Google Cloud Marketplace provides customers with the opportunity to optimize their security program while maximizing cost efficiency in their overall financial commitment to Google Cloud.About StairwellStairwell helps organizations take back the cybersecurity high ground. The Stairwell automation platform empowers security teams with automated threat detection and response capabilities as a force multiplier across security operations, threat hunting, and incident response to help outsmart any attacker. Acknowledged by Fast Company as one of the most innovative companies of 2023, Stairwell was founded by security industry leaders and engineers from Google and is backed by Section 32, Sequoia Capital, Accel, and Gradient Ventures, as well as angel investors Eric Schmidt and Michael Ovitz

PR Newswire
May 18th, 2023
Stairwell Hires Eric Foster As Next Step In Strategic Expansion

Former Cyderes President joins Stairwell as Vice President of Business DevelopmentMOUNTAIN VIEW, Calif., May 18, 2023 /PRNewswire/ -- Stairwell, a leading cybersecurity company that empowers security teams to outsmart any attacker, today announced the appointment of Eric Foster as its Vice President of Business Development. Foster was previously President of Cyderes, a leading managed detection and response provider and the first managed security services provider for Stairwell's flagship platform for automated threat detection and response."When looking to bolster our strategic growth, bringing Foster on board was a natural choice and an essential step," said Mike Wiacek, CEO and Founder of Stairwell. "Foster was my thought partner throughout my time at Chronicle, and when Stairwell joined forces with Cyderes to expand its managed detection and response solutions earlier this year. He's an information security expert with the business background needed to bring Stairwell's vision to life — enabling more teams to thwart hackers' repetitive evasion techniques."Foster has three decades of tech business experience and has spent 20 years building cybersecurity powerhouses from the ground up. He co-founded Cyderes with Gary Fish under Fishtech Group, which was later sold to Apax Partners and merged with Robert Herjavec's Herjavec Group. Before Cyderes, Foster helped build and scale the cybersecurity company RiskIQ as Head of Customer Success before its acquisition by Microsoft for $500 million

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