Security Software Engineer

Canonical is at the forefront of open source software innovation, delivering cutting-edge operating systems to enterprise and technology industries globally. Our flagship platform, Ubuntu, is instrumental in transformative initiatives spanning public cloud, data science, artificial intelligence, engineering advancements, and the Internet of Things. We serve …

As the leading Linux distribution, Ubuntu plays a crucial role in maintaining the security of the global internet ecosystem. We are seeking a passionate Engineering Manager for our Security team, whose leadership will significantly enhance the safety and security of millions of users worldwide. Join a dedicated group of security professionals committed to safeguarding the open-source environment while fostering innovation. In this pivotal role, you will tackle emerging security threats, devise robust protective measures, and uphold the integrity of the Ubuntu platform. Your contributions will not only protect users but will also create a lasting impact on the digital landscape.The Security Engineering team is primarily focused on responding to new threats and securing the open-source ecosystem for both the community and enterprise users. You will directly improve security by addressing potential CVEs and vulnerabilities throughout the lifecycle of Canonical's products, including Ubuntu. This position involves engaging with our community and customers, collaborating across multiple engineering teams and projects to achieve our security goals.As an Engineering Manager, your responsibilities will encompass line management and career development for your team. Success in this role requires a strong ability to nurture engineering talent, represent your team's technical capabilities, and foster collaboration with other teams and partners.

MissionAt Speechify, our mission is to eliminate reading barriers to enhance learning experiences for everyone.With over 50 million users benefiting from our innovative text-to-speech solutions, Speechify transforms various reading materials—such as PDFs, books, Google Docs, news articles, and websites—into audible formats. This capability allows users to read faster, absorb more, and retain information better. Our award-winning text-to-speech products include applications for iOS, Android, Mac, a Chrome Extension, and a Web App. Recognized as the Chrome Extension of the Year by Google and the recipient of Apple’s 2025 Design Award for Inclusivity, Speechify is committed to accessible technology.Our diverse team of nearly 200 professionals operates in a fully remote environment, with talents hailing from industry giants like Amazon, Microsoft, and Google, as well as renowned academic institutions like Stanford and successful startups such as Stripe, Vercel, and Bolt.

Join Proof, the pioneering identity-assured transaction management platform, as a Senior Mobile Application Engineer. In this pivotal role, you will be responsible for designing, developing, and maintaining our mobile applications, enhancing user experience, and ensuring the highest quality standards. Your expertise will contribute to our mission of digitizing trust for essential transactions in a digital-first world. Be part of our innovative team that has already transformed digital commerce since 2015, achieving milestones such as the first online real estate closing and online mortgage transactions.

Our MissionAt Speechify, we are driven by a powerful mission: to eliminate the barriers that reading can impose on learning. With over 50 million users, our innovative text-to-speech solutions transform various reading materials—PDFs, books, Google Docs, news articles, and websites—into audio format, allowing users to enhance their reading speed, comprehension, and retention.Our suite of text-to-speech products includes applications for iOS, Android, Mac, a Chrome Extension, and a Web App. Recently, we were honored with the title of Chrome Extension of the Year by Google and received Apple’s 2025 Design Award for Inclusivity.Our dynamic team of nearly 200 professionals operates entirely remotely, collaborating from around the globe. We are proud to have experts from diverse backgrounds, including Amazon, Microsoft, Google, Stanford's PhD programs, and high-growth startups like Stripe, Vercel, and Bolt, as well as numerous founders of successful companies.

Join Binance as a Software Engineer specializing in Blockchain Security, where you will play a pivotal role in safeguarding blockchain projects across the BNB Smart Chain and beyond. Collaborate with a talented team at the forefront of the cryptocurrency industry, ensuring the integrity and security of our diverse projects and systems. This role offers a unique opportunity to deepen your knowledge of the crypto landscape while making a significant impact in the blockchain community.

We are seeking a skilled Information Security Engineer specializing in Vulnerability Management to join our dynamic team at Hudson Manpower. This fully remote position offers you the chance to enhance the security posture of our organization while collaborating with various teams.Key Responsibilities:Define, implement, and support enterprise security tools and architecture in collaboration with cross-functional teams.Enhance the vulnerability management program for affiliated subsidiaries, ensuring comprehensive coverage.Establish security environments and lead the onboarding of new applications and initiatives into the Enterprise Vulnerability Management Program.Communicate effectively with stakeholders regarding open vulnerabilities and coordinate resolution efforts.Conduct thorough security research to identify threats and recommend effective remediation strategies.Proactively monitor security alerts and perform risk assessments to evaluate existing controls.Support the development of security standards, procedures, and guidelines to maintain operational resilience.

Join Canonical as an Engineering Manager and take the helm in setting security standards for the world's most widely adopted Linux distribution, Ubuntu. Your leadership will directly influence the safety and security of millions globally. Collaborate with a team of dedicated security experts committed to safeguarding the open-source ecosystem while fostering innovation. This role allows you to tackle emerging security threats, devise robust measures, and maintain the integrity of Ubuntu. With the increasing reliance on secure software and data in our interconnected world, your contributions will help Canonical uphold the highest standards of software security across a diverse range of open-source infrastructures and applications. Lead initiatives to certify core components, ensuring compliance with industry standards like FIPS, CIS, STIG, FedRAMP, and the new CRA, and guide development teams in best security practices for desktops, servers, edge devices, cloud infrastructure, Kubernetes, and OpenStack. As an Engineering Manager, you will mentor talent, represent your team and product, and drive collaboration across various stakeholders, making a significant impact on our mission to deliver the best open-source platform.

As a Senior Threat Research Engineer at Material Security, you will play a pivotal role in enhancing our product's ability to detect email-based threats. Your primary goal is to utilize your analytical expertise to uncover and monitor threats and adversaries that have bypassed existing email security measures, while also aiding in the advancement of our internal detection and response programs. Your daily responsibilities will include a combination of exploration, analysis, triage, and collaboration with a team of world-class engineers and security professionals.Key ResponsibilitiesEnhance the processes, tools, and methodologies for detecting malicious or hazardous emails.Develop detection rules that empower customers to identify email threats that other solutions may overlook.Investigate attacker campaigns to discover methods for fingerprinting attacker activities, infrastructures, and strategies.Identify valuable signals and features for training message classification systems.Uphold high standards of privacy concerning our customers’ data.Collaborate with our Security Architects and customers to reduce risk by enhancing their email security posture and using their data to inform better risk management decisions.

Are you passionate about making an impact but don’t see a position that fits your skills right now? We invite you to submit an open application! At 90seconds, we continuously seek talented individuals who are eager to contribute to our innovative journey.

About Us:At Alpaca, we are a US-based self-clearing broker-dealer and a leading brokerage infrastructure provider for stocks, ETFs, options, cryptocurrencies, fixed income, and more, facilitating 24/5 trading. Our recent Series D funding round has propelled our total investment to over $320 million, empowering us to realize our ambitious vision for the future.We serve hundreds of financial institutions across 40 countries through our institutional-grade APIs, including broker-dealers, investment advisors, wealth managers, hedge funds, and crypto exchanges, managing over 9 million brokerage accounts.Our international team comprises a diverse group of engineers, traders, and brokerage professionals committed to our mission of making financial services accessible to everyone globally. We value open-source contributions and strive to foster a vibrant community while continuously enhancing our award-winning, developer-friendly API and the robust infrastructure that supports it.Alpaca is backed by prominent global investors such as Portage Ventures, Spark Capital, Tribe Capital, Social Leverage, Horizons Ventures, Unbound, SBI Group, Derayah Financial, Elefund, and Y Combinator.Join Our Team:We are a dynamic team of over 230 globally distributed members who enjoy working from their favorite places worldwide, including the USA, Canada, Japan, Hungary, Nigeria, Brazil, the UK, and beyond! If you are passionate and eager to contribute to Alpaca's rapid growth while aligning with our core values—Stay Curious, Have Empathy, and Be Accountable—we encourage you to apply.Your Role:We are on the lookout for a dedicated Security Operations Engineer to enhance Alpaca's daily security operations. In this role, you will manage our third-party Security Operations Center (SOC) relationship, operate and fine-tune our on-premises Security Information and Event Management (SIEM) system, and act as a crucial bridge between the IT Helpdesk and Security team to ensure that security issues are promptly identified, triaged, and resolved consistently.You will have a hands-on approach and an operational mindset: improving detection quality, streamlining alert triage, coordinating incident response, and ensuring that our security operations scale effectively with the growth of the business. Your contributions will be pivotal in transforming security signals into actionable insights and preventing operational issues from escalating into security incidents.

Don't see a fitting position?We encourage you to submit your application documents regardless!

At voltairegroup, we are continually on the lookout for passionate talents, regardless of your specialty.While we primarily recruit in Bidart (Pays Basque), France, we also have openings in various other locations as well as internationally, particularly in the USA, Canada, the United Kingdom, and Germany.

In this pivotal global leadership position, you will spearhead the Security Operations (SecOps) team, overseeing the comprehensive design, implementation, and continual enhancement of Canonical's cyber security strategies, methodologies, tools, and policies. As the primary architect of our security practices, your team will play a crucial role in safeguarding Canonical's data, internal infrastructure, and build processes. You will ensure the security and integrity of our infrastructure and product deployments by establishing and implementing robust technical security controls that autonomously identify, contain, and remediate security threats. Additionally, your insights will enhance Canonical product security, fortifying the resilience of our Ubuntu customers and users against cyber attacks.As the leader within the cyber security domain, you will collaborate with our Organizational Learning and Development team to craft playbooks and facilitate SecOps training throughout Canonical. You will be part of a larger security organization, leading a high-performing security team, and enhancing Canonical's overall security posture. Your initiatives will integrate the team's insights into Canonical's broader software development lifecycle.While this is a management role, we seek leaders who are also expert practitioners, capable of leading by example, contributing at the highest levels, and assessing work based on their extensive professional experience and expertise. Ideal candidates will possess deep, hands-on knowledge of a diverse array of open-source and proprietary security tools and practices, blending them into a comprehensive next-generation security solution tailored to Canonical's wide-ranging interests.The mission of the SecOps team extends beyond just securing Canonical; it includes contributing to the security of the broader open-source ecosystem. You may share knowledge through public speaking engagements and industry events, disseminate threat intelligence, or represent Canonical in sector-specific governance bodies.This role reports directly to the Chief Information Security Officer (CISO).

We are seeking a highly skilled and innovative Lead Security Architect to join our dynamic team at li.fi. As a key player in our organization, you will take charge of designing and implementing robust security frameworks to protect our digital assets and ensure compliance with industry standards.Your expertise will guide our security initiatives, collaborating with cross-functional teams to proactively identify and mitigate security risks. This is an exceptional opportunity for a visionary leader with a passion for cybersecurity to shape our security posture and drive strategic security projects.

AAX is continually seeking outstanding talent to join our dynamic team.Even if our current openings do not perfectly match your qualifications, we encourage you to submit a speculative application.We value specific skills and experiences, but we are equally interested in exceptional individuals whose aspirations and values align with those of AAX.

Join Liatrio as a Principal Application Modernization ArchitectLiatrio is a distinguished consulting firm dedicated to helping enterprises accelerate software delivery with improved safety and efficiency. Our approach combines engineering delivery with people enablement, driving Application Modernization and DevOps transformations across diverse sectors, including finance, healthcare, and defense.Role OverviewWe are seeking an experienced leader who has a strong background as an Enterprise Architect, Strategic Architect, Field CTO, or similar roles. This individual should be passionate about modern enterprise architecture practices and committed to empowering clients through knowledge transfer, coaching, and skill development.As a Principal Application Modernization Architect, you will play a pivotal role in shaping Liatrio's strategic direction, overseeing the technical roadmap of significant engagements, and nurturing client relationships as a trusted advisor. Internally, you will collaborate with executive and senior leadership as we scale our operations. You will be responsible for ensuring the quality of code architecture and guiding multiple workstreams to technical success.Ideal Candidate TraitsOur team members embody a blend of the following qualities:- Eagerness to learn and grow- Commitment to open communication and transparency- Collaborative spirit, sharing responsibilities across teams- Proficient in navigating challenging conversations- Passion for solving intricate interpersonal, technical, and business challenges- Ability to recognize limitations and offer constructive solutions- Empathy and consideration for colleagues and clients alike

About weloglobal weloglobal brings together people from around the world to work on new ideas and meaningful projects. The company values collaboration and encourages creative thinking at every level. General Applications weloglobal welcomes applications from individuals interested in joining the team, even if a specific role is not listed. The company is always looking for motivated people eager to contribute and learn. What weloglobal looks for Interest in working on global projects Desire to grow and develop new skills Openness to collaboration and teamwork Creative problem-solving approach Location This is a global opportunity. Candidates from any location are encouraged to apply.

Join our dedicated team at Medical Home Network (MHN) and be part of a transformative journey in healthcare delivery. As the Director of Security, you will play a pivotal role in shaping the security landscape of our organization, ensuring we maintain a robust security posture while fostering healthier communities. Since 2009, MHN has partnered with Federally Qualified Health Centers (FQHCs) across the nation to enhance care within the safety net, reduce health disparities, and drive community wellness. As a mission-driven public benefit corporation, we empower FQHCs to thrive in value-based care through innovative technology solutions and strong collaborations. Our successful approach has resulted in superior health outcomes, cost reductions, and improved quality performance. Recognized by Modern Healthcare as one of the Best Places to Work in Healthcare for four consecutive years (2021–2024) and recently honored as a Great Place to Work in 2025, we are on an exciting trajectory of expansion and impact. THE OPPORTUNITY:We are in search of a skilled Director of Security to spearhead our enterprise security strategy in a highly regulated healthcare environment. The ideal candidate will possess a strong technical background in infrastructure, networking, or cloud engineering, transitioning into a security leadership role. This position will oversee MHN's security posture across our cloud infrastructure, applications, data, and operational processes, with a keen focus on compliance with healthcare regulatory standards.

Join Our Team! At whereby, we embrace a fully remote work culture, allowing you to be part of a global team without geographical limitations. We strive to maintain flexibility in working hours, but please note that many of our team members are based in Europe. This means you should ideally have at least 3 hours of overlap with Central European Time (CET) and Greenwich Mean Time (GMT). Discover more about our remote working philosophy here.Interview Process: Curious about how we recruit? Check our Recruitment FAQ.Have Questions? Feel free to reach out to us at careers@whereby.com.“To collaborative team members, completing one another is more important than competing with one another.” - John C. Maxwell, Leadership Speaker Speculative Applications at wherebyPlease Note: This is an open speculative application, indicating that while we currently do not have a job opening that matches your skills, we are excited about your interest in joining our team! We review applications every few weeks; however, please allow up to 3 months for a response, as a real person reviews each submission—not an algorithm or automated system. About wherebyFounded on Scandinavian principles of simplicity and efficiency, whereby is a remote-first video meetings platform that envisions a world where work can happen from anywhere. We value diversity and believe that our differences strengthen our collective mission. Your unique background is invaluable to us, and we celebrate every aspect of your identity, including race, religion, ethnic origin, ability, socio-economic status, and more.