Senior Software Engineer, Server Security

About UsSophos is at the forefront of cybersecurity, delivering cutting-edge solutions designed to combat and thwart cyber threats. Following the acquisition of Secureworks in February 2025, we have merged two industry pioneers to transform the cybersecurity landscape with our innovative, AI-optimized services. As the largest dedicated provider of Managed Detection and Response (MDR), we serve over 28,000 organizations worldwide. Our comprehensive portfolio encompasses top-tier endpoint, network, email, and cloud security solutions that seamlessly integrate through the Sophos Central platform. With Secureworks' market-leading Taegis XDR/MDR, our offerings also include identity threat detection and response (ITDR), next-gen SIEM capabilities, and extensive advisory services. We protect more than 600,000 entities globally from phishing, ransomware, data breaches, and various cyber crimes, backed by real-time threat intelligence from our Sophos X-Ops and the Counter Threat Unit (CTU). Our headquarters are located in Oxford, U.K. For more details, visit www.sophos.com.Role Overview We are seeking a talented Senior Software Engineer to spearhead the product development lifecycle within our AI security team. In this role, you will be responsible for architecting and delivering AI-driven products, including LLM workflows, automation systems, and intelligent software, across both frontend and backend environments. This position offers a high degree of autonomy and encourages proactive problem-solving; you will have the opportunity to define challenges, make swift decisions, and exercise strong engineering judgment, directly influencing our approach to scaling and enhancing software solutions powered by AI.

About Us:At Cohere, our mission is to enhance intelligence for the betterment of humanity. We specialize in training and deploying cutting-edge models for developers and enterprises, empowering them to create remarkable AI-driven experiences such as content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. We believe our efforts are pivotal in advancing the widespread integration of AI.We take immense pride in our creations, and each team member plays a crucial role in enhancing our models and delivering exceptional value to our clients. Our culture is rooted in hard work and agility, always prioritizing the needs of our customers.Cohere brings together a diverse team of researchers, engineers, designers, and more, all deeply passionate about their respective fields. We recognize that a variety of perspectives is key to developing outstanding products.Join our mission to shape the future of AI!Why This Position Matters:Are you driven by a passion for secure software development? Do you aspire to be at the forefront of AI innovation while ensuring enterprise security? Join Cohere's North team as a Senior Software Engineer focused on security, and make a meaningful impact.Your Responsibilities:In this pivotal role, you will be instrumental in constructing and securing the architecture of North, our AI workspace platform. Your key responsibilities will include:Designing and deploying security features for North, our AI workspace platform.Creating autonomous agents capable of interacting securely with sensitive enterprise data.Developing minimal code that operates in low-resource environments, adhering to rigorous deployment standards.Integrating new tools to enhance the security features of North.Reinventing solutions as needed to meet stringent security and privacy requirements, sometimes necessitating the development of custom solutions.Conducting application security testing to ensure your code withstands real-world threats.Ideal Candidate Profile:5+ years of experience in software engineering with a solid emphasis on developing user-facing security features.Proficient in Python with a proven track record of deploying production-level code.Strong analytical skills and a problem-solving mindset, capable of tackling complex challenges within security frameworks.Familiarity with security testing methodologies and tools.

Join our innovative team as a Senior Sales Engineer specializing in Data & AI Security. In this dynamic role, you will leverage your technical expertise and sales acumen to provide cutting-edge solutions to our clients. You will work closely with our sales team to drive growth and enhance customer satisfaction by demonstrating the value of our advanced data protection and AI-driven security technologies.As a key player in our organization, you will engage with clients to understand their needs, deliver tailored presentations, and provide hands-on support during the implementation of our solutions. Your ability to communicate complex technical concepts to non-technical stakeholders will be crucial in helping our clients realize the full potential of our offerings.

Join Veeam Software as a Senior Sales Engineer specializing in Data & AI Security. In this pivotal role, you will leverage your expertise to drive sales and provide technical solutions that address our clients' data security challenges. You will collaborate closely with sales teams and clients to ensure that our advanced solutions meet their unique needs.

Who are we?At Cohere, our mission is to harness the power of intelligence for the benefit of humanity. We specialize in training and deploying cutting-edge models for developers and enterprises, enabling them to create innovative AI systems that deliver extraordinary experiences in content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. Our endeavors are pivotal in accelerating the global adoption of AI technologies.We are dedicated to excellence in our craft. Each team member plays an essential role in enhancing the capabilities of our models and the value they provide to our clients. Our culture is built on hard work, rapid iteration, and a relentless focus on what is best for our customers.Cohere is comprised of a diverse team of researchers, engineers, designers, and more—each a leader in their field. We believe that diverse perspectives are crucial for creating exceptional products.Join us in our quest to shape the future of AI!About the RoleAre you passionate about secure software engineering? Do you aspire to be at the forefront of AI innovation and security? Our North team at Cohere is on the lookout for a Senior Software Engineer focusing on security to join us in our mission and make a substantial impact. This is not merely an advisory position; you will take ownership of and deliver production-level security features that our clients rely upon daily.Your Role:As a Senior Software Engineer with a specialization in security, your contributions will be vital in architecting and securing North's infrastructure. Your responsibilities will encompass:Software Development: Actively participate in the core development of security features like OIDC/OAuth flows and session management, ensuring the security of North's AI agents.Secure Coding: Write robust code to manage OIDC tokens, user claims, and sensitive information, following best practices for JWT validation and encryption.Authentication and Data Protection: Implement authentication protocols, including user login, token management, and authorization checks to safeguard data integrity.Tool Integration: Integrate new security tools to enhance North's capabilities.DevSecOps: Design and execute secret management in Kubernetes clusters, focusing on encryption and role-based access control (RBAC).Cross-functional Collaboration: Utilize strong communication skills to convey security best practices to stakeholders clearly and effectively.You may be a great fit if:You have 5+ years of experience in building secure software applications.You possess a deep understanding of security protocols and practices.You are proficient in coding languages and frameworks relevant to security development.You have a track record of successful collaboration in cross-functional teams.

Shape the Future of Finance with Us!Our mission is to democratize finance for everyone. An estimated $124 trillion of assets will be passed down to younger generations in the coming decades, marking the largest wealth transfer in history. If you’re eager to be part of this monumental cultural and financial transformation, we want to hear from you.About Our Team and the RoleWe are assembling a top-tier team to tackle the world’s most significant financial challenges using cutting-edge technologies. We seek innovative thinkers, adept problem-solvers, and builders ready to make a substantial impact. At Robinhood, we foster an environment of high performance and ethical standards, where ambitious individuals can excel in their careers. Expectations are high, and the rewards are significant.Within Robinhood, we perceive security as a design and engineering challenge rather than a mere administrative task. We are in search of a lead architect for our next-gen automated defense systems. As a Senior Vulnerability Management Engineer, you will evolve our program into a self-scaling security platform that surpasses the conventional 'scan-and-patch' approach. You will spearhead the transition to an Intelligence-Driven Defense model, harnessing Agentic AI and Machine Learning to automate risk discovery, prioritization, and remediation at scale, ultimately streamlining security for our developers.This position is based in our office in Toronto, as outlined in this job posting. For more details about our in-office philosophy and expectations, please connect with your recruiter.

Tigera is at the forefront of network security and observability, providing Calico—a unified platform designed to prevent, detect, and mitigate security breaches within Kubernetes clusters. Our open-source solution, Calico Open Source, stands as the most widely adopted container networking and security solution in the market.With over 100 million containers powered across more than 8 million nodes in 166 countries, Calico software is supported across all major cloud providers and Kubernetes distributions. Industry leaders such as Discover, Chipotle, NBCUniversal, HanseMerkur, Box, Siemens Healthineers, Playtech, Royal Bank of Canada, and Bell Canada trust our technology.As our team expands, we seek individuals who share our passion for innovation and growth, and who will contribute to maintaining Tigera as an exceptional workplace. Our core values emphasize customer focus, high aspirations coupled with agility, continuous learning, and a culture of respect, collaboration, and support.If you are eager to make a significant impact and resonate with our values and vision for career development, we would love to connect!About Your RoleWe are in search of a Senior Software Engineering Manager to lead our Calico Cloud and AI engineering team. In this pivotal role, you will manage a talented team of software engineers and AI/ML developers as we evolve our SaaS platform and lead our transition into autonomous AI agents.Your collaboration with Product Management and cross-functional teams will be essential to defining roadmaps, prioritizing initiatives, and delivering features that exceed customer expectations while solidifying Tigera’s global leadership in Kubernetes networking and observability. You will cultivate a culture of high performance and innovation while fostering a healthy team environment and mentoring engineers in their professional development.This hands-on leadership position requires deep engagement with technical decisions, participation in architectural discussions, and maintaining technical fluency to assist your team and guide system design.This role operates in a hybrid model based in Vancouver.

About the Role Elastic is looking for a Senior Software Engineer to join the Security Platform Team. This position focuses on building and improving security solutions that help safeguard customer data and maintain system integrity. What You Will Do Design, develop, and enhance software for the Security Platform Work closely with teams across engineering, product, and operations Participate in code reviews to support quality and maintainability Contribute to agile development processes Location This role is open to candidates based in Canada.

Klue develops competitive intelligence solutions for businesses, with a growing engineering team in Toronto. The Senior Software Engineer, AI, will help shape the next generation of LLM-powered agents and advanced search systems. Role overview This position centers on designing and optimizing backend systems for agentic workflows. The work involves retrieval-augmented generation (RAG), dense retrieval, query understanding, and agentic reasoning. The goal is to deliver fast, accurate, and reliable search experiences for Klue's clients. What you will do Develop and deploy backend systems that support agentic workflows. Build retrieval pipelines, orchestration layers, and multi-step agent architectures to transform large volumes of competitive data, news, press releases, web updates, Slack, email, reviews, and CRM information, into actionable intelligence. Lead evaluation of agentic systems. Create and maintain automated, offline, and human-in-the-loop evaluation frameworks. Define success metrics and build infrastructure for continuous measurement of relevance, quality, latency, and task success. Design and refine retrieval and ranking systems. Work across hybrid retrieval, re-ranking, query rewriting, and post-retrieval synthesis. Balance trade-offs between BM25, dense retrieval, and hybrid methods to ensure agents provide timely and relevant information. Enhance LLM-powered workflows. Improve prompt design, retrieval strategies, caching, and latency to make agent responses faster, more accurate, and more reliable in production. Prioritize customer-centric development. Connect technical decisions to customer outcomes. Use insights from customer interactions to guide feature prioritization and improvements, adopting an iterative approach and measuring impact. Location This position is based in Toronto, Ontario. Learn more about Klue at klue.com.

Location: Remote, Canada or US GitLab Inc. is hiring a Software Security Engineer to work remotely from Canada or the US. This role focuses on strengthening security across the GitLab product and developing tools that detect and prevent abuse on SaaS platforms. The position is part of the Trust and Safety team, which manages core abuse prevention systems and delivers features that help keep customers safe, such as Compromised Password Detection for GitLab.com. What you will do Implement security improvements directly within the GitLab product Develop and maintain tools to identify and prevent abuse on SaaS platforms Analyze abuse patterns and trends, designing systems to stop malicious user activity Support customer safety by building and maintaining prevention mechanisms Who this role suits This position is well suited to software engineers who want to move into security engineering. Experience working with large Ruby on Rails codebases is important. Formal security engineering experience is not required. Learn more Additional details about the Trust and Safety team and this role’s responsibilities can be found in the GitLab handbook and blog. For more on Compromised Password Detection, see this post.

Menlo Security is dedicated to empowering secure global connectivity, communication, and collaboration without compromise. The challenges presented by COVID-19 have intensified our mission, as we serve a diverse clientele, including Fortune 500 companies, 9 out of the 10 largest global banks, and the Department of Defense.The landscape of technology is evolving, and as we expand from 400 employees, we are on the lookout for passionate individuals who exhibit empathy and agility. The ideal candidate is ethical, highly organized, committed to completing tasks, service-oriented, and open to feedback while also possessing the confidence to offer constructive insights.Menlo is well-funded for growth, with esteemed investors such as Vista Equity Partners, General Catalyst, JPMC, American Express, HSBC, and Ericsson Ventures.We are currently searching for a Senior AI Security Engineer to tackle the emerging security challenges posed by autonomous AI agents. In this pivotal role, you will research, design, and implement innovative strategies to detect and mitigate prompt poisoning, context manipulation, malicious agent behaviors, and other adversarial threats targeting AI systems.Collaboration with engineering teams will be essential as you translate leading-edge security research into practical, deployable security measures to protect agents interacting with untrusted web content in real-world settings.

Join Our Team as a Senior AI-Native Software EngineerLocation: Preferred Montreal, Canada (hybrid), Austin, TX (hybrid), or anywhere on the East CoastLansweeper is transforming its engineering framework towards an AI-native development paradigm. We are seeking a Senior AI-Native Software Engineer to spearhead the development of robust and scalable systems, harnessing AI as a significant development catalyst.Your mission is to design and deliver high-quality, production-grade software within an AI-enhanced workflow, ensuring engineering excellence, performance, and architectural integrity.In the coming phase, you will collaborate with the Redjack integration team, focusing on system quality, architectural clarity, and scalable design as various AI-assisted development initiatives operate concurrently.Key ChallengesAs a Senior AI-Native Software Engineer, you will navigate the following challenges:Upholding engineering quality and system integrity in an AI-supported development environmentEnhancing system scalability while ensuring performance, reliability, and architectural clarityManaging simultaneous AI-driven development workflows while maintaining technical coherencePrimary ResponsibilitiesCraft and develop maintainable, scalable, observable, and rigorously tested software systemsEngage in an AI-augmented development workflow: break down problems, guide AI tools, review AI-generated code, and assure production-grade qualityParticipate in architectural discussions, long-term system evolution, and strategic technical directionUtilize strong system thinking across data models, APIs, distributed systems, and service boundariesGenerate clear technical documentation, structured prompts, and design proposals to boost collaboration between engineers and AI systemsMentor fellow engineers and work cross-functionally with Product, UX, and other Engineering teams

jobgether is looking for a Senior Software Engineer to focus on AI SaaS software. This position is based in Canada and centers on designing, building, and deploying AI-powered applications that improve user experiences and support business goals. Role overview This role involves working with teams across product management and data science. The Senior Software Engineer will help shape and deliver scalable software solutions that adapt to changing customer needs. Contributions in this position play a direct part in advancing the company’s AI-driven projects. What you will do Design and develop AI SaaS applications Deploy software that enhances user experience Work with cross-functional teams to deliver scalable solutions Requirements Extensive experience in software engineering Background in AI SaaS or related technologies Ability to collaborate with product and data science teams

Role overview As a Senior Software Engineer focused on AI Infrastructure at jobgether, the main responsibility is to shape and support the technical foundation for the company’s AI initiatives. The work involves both creating new systems and refining current technology to help meet evolving business objectives. What you will do Design and develop infrastructure that enables AI systems to operate efficiently and reliably Maintain and enhance existing AI technology stacks to ensure ongoing performance and scalability Apply technical expertise to solve complex engineering problems related to AI infrastructure Work environment This position is based in Canada and involves working closely with a collaborative team. The role provides opportunities to engage with advanced technologies in support of the company’s AI goals.

At Tenstorrent, we are at the forefront of pioneering AI technology, setting new standards for performance, usability, and cost-effectiveness. As AI reshapes the technological landscape, our solutions are evolving to integrate advancements in software models, compilers, platforms, networking, and semiconductors. Our talented team has designed a high-performance RISC-V CPU from the ground up, driven by a passion for AI and a commitment to building the leading AI platform. We prioritize collaboration, curiosity, and tackling challenging problems, and we are expanding our team to include contributors of all experience levels.Become a vital part of the team transforming AI computing at Tenstorrent. You will engage with TT-Forge, our MLIR-based compiler that allows developers to optimize AI workloads across all configurations of Tenstorrent hardware using an open-source, efficient, and versatile compiler. You will be at the cutting edge of the AI hardware revolution, contributing to compiler technologies that expand the horizons of what’s achievable.This position offers a hybrid work environment based in Toronto, ON.We encourage applications from candidates with varying levels of experience. During the interview process, we will assess candidates to determine the appropriate level, and offers will align accordingly.

Rivian and Volkswagen Group Technologies have joined forces to advance the future of electric vehicles. This partnership brings together deep expertise in automotive engineering, software, and cloud connectivity. The focus is on building technology that sets new standards for software-defined vehicles worldwide, with an emphasis on AI, connectivity, and security. Role overview The Senior Software Engineer - AI Platform will lead architectural design and strategic development for the GenAI platform. This position centers on integrating large language models (LLMs) into both internal and customer-facing applications at scale. The aim is to drive cognitive automation, streamline workflows, and support better decision-making across the organization. What you will do Design and develop AI-driven applications using large language models. Integrate LLMs into production systems for both internal teams and external customers. Establish best practices for building distributed systems that are resilient, scalable, and observable. Deliver production-grade tools that are reliable and maintainable. Location This role is based in Toronto, Ontario.

Who We AreSamsara (NYSE: IOT) is at the forefront of the Connected Operations™ Cloud, a revolutionary platform empowering organizations reliant on physical operations to leverage Internet of Things (IoT) data. Our mission is to enhance safety, efficiency, and sustainability in the physical operations that drive our global economy. Covering over 40% of global GDP, these sectors include agriculture, construction, field services, transportation, and manufacturing, and we are thrilled to help them transition to digital solutions at scale.Joining Samsara means you'll be instrumental in shaping the future of physical operations by contributing to an exciting range of product solutions, such as Video-Based Safety, Vehicle Telematics, Apps and Driver Workflows, and Equipment Monitoring. As part of a recently publicly traded company, you will enjoy the autonomy and support to make a significant impact while we build for the long haul.About the Role:Samsara's Revenue Operations AI & Data Team is redefining our market approach—focusing on intelligence, personalization, and rapid execution. We are a dynamic team of builders, scientists, and strategists dedicated to revolutionizing sales operations through AI. Our goal is to empower sellers to connect with the right customer at the right moment with the most relevant message, equipping them with essential resources, whether that’s data from Salesforce, insights from previous interactions, or winning content.As a Senior Software Engineer on the AI Platform team, you will spearhead the design and development of crucial platform capabilities that enable Samsara’s next generation of AI-driven experiences. Your focus will be on creating scalable, reliable systems that support multi-step AI workflows, model execution, and cross-product integrations, steering away from isolated features. This role is positioned at the nexus of distributed systems and applied AI, where accuracy, extensibility, and operational excellence are just as vital as speed.You will collaborate closely with AI engineers, backend developers, and cross-functional teams to establish shared execution patterns, define platform contracts, and enhance the foundations that underpin S+Engine and future AI applications. You will have the authority to make architectural decisions, drive rapid iterations, and help transform emerging AI capabilities into a robust, production-ready platform that other teams can rely on.

Brinqa stands at the forefront of unified cyber risk management and security analytics, equipping organizations to swiftly and effectively navigate cyber risk decisions across diverse platforms.We empower our clients’ cybersecurity and technology teams to uncover, prioritize, and manage crucial risks through real-time risk analytics, automated assessments, and effective remediation strategies. Our solutions provide actionable insights and prompt communication, enabling clients to diminish response times to dynamic threats and safeguard their enterprises from potentially severe repercussions.Brinqa is actively seeking a Senior Software Engineer to join our AI team, responsible for designing and developing platform features that will enhance our AI capabilities. Your expertise will be integral in ensuring these features are both scalable and high-performing. Our platform processes and analyzes hundreds of millions of vulnerabilities daily, making it vital for our clients' cybersecurity posture.The perfect candidate will have extensive experience in implementing large-scale SaaS applications and a passion for delivering top-tier solutions utilized by major organizations worldwide. This position reports to the Manager of Software Engineering or higher.If you aspire to advance your career within an exceptional team, contribute to significant projects, and make a meaningful impact, your opportunity awaits at Brinqa!

Cambio develops software that helps commercial real estate owners and tenants lower emissions, aiming for net-zero portfolios. The platform relies on machine learning to support sustainability efforts across the industry. Cambio works with partners such as Y Combinator, Google, the U.S. Department of Energy, Stanford University, and Fifth Wall to advance climate action in real estate, targeting net zero by 2050. Why join the engineering team at Cambio? Work on practical solutions for decarbonizing real estate, one of the highest-emitting sectors. Join a rapidly growing company, Annual Recurring Revenue tripled last year, with plans for continued expansion. Contribute to an AI-focused platform, with increased investment in artificial intelligence to accelerate customer decarbonization. Collaborate with colleagues from organizations like Google, Bain, Faire, One Medical, OMERS, and Goldman Sachs. Take on meaningful ownership early, shipping features quickly and shaping both product and culture. Receive competitive compensation and meaningful equity. Role overview The Senior Software Engineer, AI Products, role centers on building and integrating large language models (LLMs) and machine learning solutions into Cambio’s platform and internal tools. This position has a direct impact on customer experience, operational efficiency, and the pace of product innovation. What you will do Design, implement, and refine AI-driven features that enhance user experience and business outcomes. Develop LLM-based automation tools to streamline internal processes and reduce manual work. Set up and maintain machine learning and LLM pipelines for reliable, scalable deployment. Optimize AI models for performance, balancing speed, quality, and infrastructure costs.