Senior/Staff Software Engineer, Simulation Platform

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.

About the Role Chainguard is looking for a Senior Software Engineer to help build and improve the libraries that power our platform. This remote position is open to candidates based in Canada. The work centers on creating tools that support secure software delivery at scale. What You Will Do Design and develop libraries that are both scalable and efficient for the Chainguard platform. Work closely with teams across engineering, product, and other disciplines to define requirements and deliver new features. Explore and adopt new technologies that improve how we develop and ship software. Who We’re Looking For This role suits someone with a strong background in software engineering, especially in building and maintaining libraries. Curiosity about new technologies and a drive to improve development practices are important here. Location Remote within Canada.

About the Role At Abnormal AI, we empower enterprises of all sizes to combat cybercrime with our innovative cloud products. Our offerings are data-intensive SaaS applications that require robust, scalable, and secure data access. This is where our talented Data Platform team plays a crucial role, providing scalable storage solutions (PostgreSQL, OpenSearch, Redis, RocksDB, DynamoDB) and developing services and tools that enhance operational excellence while sharing expertise with engineering and data science teams. We are seeking a Senior Software Engineer to join our Data Platform team. In this role, you will collaborate closely with our world-class engineers to shape and develop the next generation of our data platform. You will tackle ambitious technical challenges that deliver significant value to Abnormal and our clients. There are numerous opportunities for professional growth and career advancement, including the potential to progress into a Staff technical leadership role.

About Cozey Engineering Cozey builds and maintains the core technology that supports a modern e-commerce experience. The engineering team develops in-house systems that drive every step of the process, from placing an order to final delivery. This includes operational infrastructure, warehouse management, backend services for the website, and logistics tools, all designed for speed, accuracy, and a strong customer focus. Role Overview: Senior Software Engineer, Platform This senior engineering role focuses on building and improving the foundational systems behind Cozey’s COS (Cozey Operating System). Reporting to a Staff Engineer, the position offers the chance to shape the backbone of Cozey’s technology stack and support the company’s growing e-commerce platform. Location Remote within Canada.

Join Confluent as a Senior Software Engineer for our Connect Platform, where you will play a pivotal role in building and enhancing our data streaming solutions. Collaborate with a talented team to innovate and drive the future of data integration, ensuring seamless connectivity for our clients. Your expertise will help shape the future of real-time data processing, enabling businesses to unlock their data’s full potential.

Pinterest, Inc. is seeking a Senior Software Engineer to join the Web Platform team in Toronto, ON. This role centers on designing, developing, and maintaining web applications that serve millions of users around the globe. Role overview The Senior Software Engineer will work closely with cross-functional teams to deliver new features and enhance the online experience for Pinterest users. Collaboration with colleagues from various disciplines is a key part of this position, helping to ensure that new ideas are implemented smoothly and effectively. What you will do Design and build scalable web applications for a large user base Maintain and improve existing web features Collaborate with engineers, designers, and product teams to shape new user experiences Location This position is based in Toronto, Ontario.

Rivian Automotive, Inc. is seeking a Senior Software Engineer to join the Consumer Platform team in Vancouver, British Columbia. This position centers on designing and building software that improves the experience for Rivian’s customers. Role overview The Senior Software Engineer will contribute to the development of new features and solutions for Rivian’s consumer-facing platform. The work involves both creating and refining software to support a seamless user journey. Collaboration This role works closely with colleagues across different teams. Regular collaboration ensures that the software aligns with the needs of a growing user base and maintains high standards for quality. Impact By joining the Consumer Platform team, you will help shape the digital experience for Rivian customers, supporting the company’s mission as an electric vehicle manufacturer.

Role Overview Coinbase is hiring a Senior Software Engineer for the Data Platform team. This remote role is open to candidates based in Canada. The team builds and maintains the core data infrastructure that supports Coinbase’s mission to create an open financial system for the world. What You Will Do Design and implement scalable data solutions to support business needs Collaborate with team members to solve complex data engineering challenges Develop systems that help generate business insights and improve product offerings

About UsAir-tek is an innovative Canadian software company recognized for its unique suite of products that have secured a significant presence in the global market. Our product-market fit is exceptional, and we are experiencing a surge in customer demand. During this phase of rapid growth, we maintain a discreet operational presence.Our diverse team is united by a shared passion for tackling complex challenges, a commitment to innovation, and an ambition to redefine the passenger-centric travel industry. Located in Toronto, we foster an inclusive culture based on trust, collaboration, excellence in product delivery, and continuous personal development. We take pride in our work and support each other as a team.About the TeamThe Platform Engineering team consists of highly collaborative software engineers dedicated to building, scaling, and maintaining the foundational infrastructure that empowers other teams to develop Air-tek’s software solutions. We focus on creating secure, scalable, and efficient infrastructure, employing modern development practices. Our impact is felt across the company as we work closely with operations, support, product management, and other engineering teams to meet Air-tek’s objectives.As a Senior Platform Engineer, you will play a pivotal role in designing, developing, and operating our core platform services, enabling us to deliver robust and reliable infrastructure solutions that support the expanding needs of our products.

About MagicalMagical is an innovative automation platform that integrates cutting-edge AI technology into the healthcare sector, providing AI agents capable of functioning effectively in real-world settings.Our mission is to create 'AI employees' that streamline tedious and time-consuming processes, specifically in healthcare—a massive $4 trillion industry laden with administrative burdens. We focus on automating critical tasks such as claims processing, prior authorizations, and eligibility checks, allowing healthcare professionals to dedicate more time to patient care.Our AchievementsAs pioneers in the transition to agentic automation in healthcare, we have achieved significant traction:Dramatic revenue growth with clients expanding into new workflows ahead of contract renewals.Rapid proof-of-concepts completed in just 7 days, delivering tangible value in an industry where similar timelines typically span months.Self-repairing automations with production-level reliability at scale, outperforming competitors who struggle to launch functional solutions.Unlike many AI firms that make grand promises, we provide dependable solutions that yield measurable outcomes. Our backing includes notable investors such as Greylock, Coatue, and Lightspeed, with a total funding of $41M. Our founder, Harpaul Sambhi, is a seasoned entrepreneur who previously sold his first company to LinkedIn.Role OverviewIn your role as a Senior Backend Engineer on the Agent Platform team, you will develop the core systems that drive our AI agents—covering aspects from orchestration and state management to model integration and evaluation pipelines. This position is centered around platform engineering, focusing on building the infrastructure that empowers our team to deliver reliable, production-grade agentic automation.You will work at the forefront of multi-agent systems, designing collaborative strategies for agents to tackle complex healthcare workflows. You will take ownership of essential backend services, overseeing them from architecture to deployment while developing verification systems that ensure our agents perform accurately every time.This hybrid position requires you to be onsite in our Toronto office two days each week.

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.

Join our dynamic team at Zip as a Senior Software Engineer specializing in our Developer Platform. This is a unique opportunity to shape the future of our technology stack while collaborating with cross-functional teams to deliver high-quality software solutions. You will be responsible for designing, developing, and maintaining robust backend services and APIs that empower our developer community.

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.

Protecting Every Identity, from AI to HumanAt Okta, we believe that identity is the cornerstone for harnessing the potential of AI technology. We are dedicated to securing AI by creating a reliable, neutral infrastructure that empowers organizations to confidently navigate this exciting new landscape. This mission demands a relentless commitment to tackling intricate challenges with significant real-world implications. We are searching for innovators and leaders who thrive in a fast-paced environment and deliver results with precision.As a Senior Security Infrastructure Engineer on our Red Team, you will play a pivotal role within the Product Security team, providing critical security assurance for Okta's products, services, and infrastructure. You will be the first dedicated infrastructure and tooling engineer for a small team of operators, working collaboratively alongside them as a peer in a distinct discipline.In this role, you will take ownership of the engineering backbone that supports our operations, focusing on infrastructure, tooling, and automation within the Red Team. Your responsibilities will include designing, building, maintaining, and continuously enhancing the platforms and tools that our operators rely on for executing their engagements.Your contributions will directly enable the team to operate at a higher maturity level, characterized by rapid infrastructure deployment, resilient OPSEC-aware architectures, automated workflows, and dependable custom tools, allowing operators to concentrate on their core mission. Furthermore, you will foster collaboration with stakeholders and elevate the company's security posture through strategic initiatives and proactive measures. As the team grows, this role has the potential to evolve into platform leadership or a hybrid operator/engineer pathway.

Why Join Us?At Brex, we are pioneering an AI-driven spend management platform that empowers organizations to spend wisely through integrated corporate cards, banking services, and global payment solutions. Our innovative software simplifies travel and expense management, making it easy for businesses of all sizes—from startups to large enterprises such as DoorDash, Flexport, and Compass—to take charge of their expenditures, minimize costs, and enhance operational efficiency on a global scale.Joining Brex means challenging yourself, redefining the norms, and collaborating with some of the industry’s brightest talents. We are dedicated to cultivating a diverse and inclusive workforce, and we believe your ambitions should only be limited by your imagination. Our commitment is to equip you with the necessary tools, resources, and support for your professional development.Engineering at BrexOur engineering teams at Brex are focused on creating systems that scale effectively and purposefully. We encompass Software, Data, Security, and IT, fostering an atmosphere of high autonomy and collaborative synergy. We tackle complex technical challenges, own our results, and strive for excellence from architecture to deployment. Here, engineering is regarded as a craft, and builders have the opportunity to emerge as leaders.Where You’ll WorkThis position is based in our Vancouver office. We embrace a hybrid work model that combines the vibrancy and connectivity of office life with the benefits of remote work. Currently, we require team members to be in the office at least three coordinated days each week—specifically Monday, Wednesday, and Thursday.Additionally, we offer up to four weeks of fully remote work each year!Your RoleAs a member of our Product Data Platform (PDP) team, you will help build and manage the high-performance data infrastructure that underpins critical product experiences at Brex. The mission of PDP is to render Brex customizable, scalable, and reliable for finance teams, necessitating deeply optimized backend systems ready for production.In your role as a Senior Software Engineer, you will engage with data-intensive, distributed systems at scale. You will spearhead architectural and performance enhancements across the platform, striving to improve latency, accuracy, and scalability across various product surfaces. The PDP team also develops AI-driven data products, including an interactive reporting tool that enables customers to engage dynamically with their financial data. Your contributions will ensure these systems are fast, reliable, and built for scalability.

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.

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.

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 the Role MongoDB is looking for a Senior Software Engineer to join the Server Security team in Toronto. This group sits at the heart of MongoDB’s engineering organization, building security features that help users protect their data worldwide. The work spans core elements of the MongoDB database, with a focus on security, reliability, and performance. What You Will Work On Cryptography: Develop and maintain cryptographic features such as Queryable Encryption, at-rest encryption, and other foundational crypto components. Identity & Access: Design and improve authentication and authorization systems, manage TLS, and handle X.509 certificate processes. Network Security: Build high-performance networking protocols using PKI, hashing, and certificate revocation lists (CRLs). System Integrity: Strengthen resilience, observability, and compliance across MongoDB’s distributed database infrastructure. Team Culture The Server Security team values inclusivity, diversity, and close collaboration. Engineers here apply distributed systems concepts to advance the security of a widely used database platform. The work supports application developers, system architects, and database administrators around the globe.