Senior Software Engineer - Infrastructure

At Vanta, we are dedicated to helping businesses cultivate and demonstrate trust by prioritizing security that is continuously monitored and verified. Our mission empowers companies to enhance their security practices and showcase their commitment effortlessly. Join our supportive and skilled team, where individuals from diverse backgrounds thrive—many have succeeded at Vanta without prior security experience.About the Role:As a key member of Vanta’s Infrastructure & Security team, you will play a vital role in building a robust platform that ensures the scalability, performance, and reliability of our core systems. With our rapidly expanding customer base, we require infrastructure that evolves alongside us, without sacrificing speed or developer efficiency. You'll engage in projects involving distributed systems, infrastructure components, and security upgrades, enabling our engineers to deliver dependable software at scale.Your contributions will significantly impact product engineering across the board. Our initiatives simplify the process for engineers to identify bugs, develop features, and provide value to our clients swiftly and securely.At Vanta, we harness modern frameworks and tools such as TypeScript, React, Node.js, MongoDB, GitHub Actions, and a variety of AWS services like Fargate and ECS to design and develop new product functionalities and infrastructure.If you're excited about the intersection of infrastructure and security, we would love to connect with you.To learn more about our team's work, visit our Vanta Engineering Blog.Your Responsibilities Will Include:Designing and constructing scalable infrastructure to facilitate rapid increases in data volume, service utilization, and engineering productivity.Leading projects concerning our cloud infrastructure, encompassing container orchestration (e.g., AWS Fargate, ECS), monitoring and alerting systems, networking, and database upkeep.Implementing and maintaining essential security infrastructures and controls, including service-to-service authentication, secrets management, application security features (e.g., rate limiting, encryption libraries), and infrastructure hardening.Identifying and resolving intricate security challenges to bolster our systems.

Role overview Veeva Systems is hiring a Senior Software Engineer focused on infrastructure in Toronto, Canada. This role centers on designing and building software that supports and improves our cloud-based platforms. The work directly impacts scalability and performance across our systems. What you will do Design and implement software solutions for infrastructure needs Work closely with teams from different disciplines to strengthen our cloud platforms Contribute to projects that improve system scalability and performance

As a Senior Infrastructure Software Engineer at Afresh Technologies, you will play a crucial role in enhancing our infrastructure to support cutting-edge software solutions. You will collaborate with cross-functional teams to design, implement, and maintain scalable systems that improve our operational efficiency and reliability.

Role Overview Veeva Systems Inc. is looking for a Senior Software Engineer focused on Infrastructure in Toronto, Canada. This role centers on designing, building, and improving infrastructure that supports our software products. What You Will Do Create and refine infrastructure solutions to support application development and deployment Work with teams across engineering, operations, and product to strengthen system reliability and performance Address scalability and security needs as our technology evolves Impact Your work will help shape Veeva’s technology foundation and support the growth of our software applications.

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.

Join Cohere as a Senior Software Engineer, specializing in Agent Infrastructure. In this role, you will lead the design and implementation of robust software solutions that enhance our agent infrastructure capabilities. Collaborate with cross-functional teams to drive innovation and optimize our systems for performance and scalability.

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.

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.

Elevate Your Career with Loopio! At Loopio, we are searching for a visionary Senior Engineering Leader to spearhead our Site Reliability Engineering (SRE), Infrastructure, and MLOps teams. In this pivotal role, you will architect the foundation of reliability, scalability, and cost efficiency for our platform's systems.You will guide teams responsible for designing, building, and operating our production infrastructure, ensuring our services remain resilient, observable, and primed for expansion as we incorporate cutting-edge AI and automated workflows. Collaborating closely with Product Engineering, Security, and Data teams, you will facilitate rapid, secure delivery while upholding operational excellence.Note: This position is an existing vacancy within our team. Key ResponsibilitiesLeadership & Team DevelopmentLead and nurture multiple teams across SRE, Cloud Infrastructure, and MLOps.Mentor engineering managers and senior contributors, cultivating a culture of ownership and high standards.Foster a 'Platform-as-a-Product' mindset, ensuring infrastructure and ML tools empower the wider engineering organization.Collaborate with Recruiting to attract and retain top-tier talent in the areas of cloud, reliability, and machine learning infrastructure.Reliability & Operational ExcellenceOversee the operational health of production systems, focusing on availability, latency, and durability.Define and refine SLIs, SLOs, and error budgets to promote data-driven reliability decisions.Lead incident response efforts, championing blameless postmortems and systemic improvements to minimize

Join Us in Revolutionizing the Grocery SectorAt Instacart, we believe that food brings people together. Our mission is to ensure everyone has access to the groceries they love while providing them with more time to savor those moments. What may seem like a simple grocery delivery service to some is, for us, an intricate web of opportunities to meet the diverse needs of our community. We are dedicated to delivering an essential service that our customers depend on for their groceries and household items while also creating safe and flexible earning opportunities for Instacart Personal Shoppers.Instacart has become a vital resource for millions, and we are expanding our team to drive our mission forward. If you're ready to contribute to something impactful and do your best work, we invite you to join our team.Flexibility at InstacartWe understand that there's no one-size-fits-all approach to productivity. Therefore, we provide our employees the freedom to choose their ideal work environment, whether it's from home, a local office, or a favorite café, while maintaining connectivity and community through regular in-person events. Discover more about our flexible work culture.Role OverviewAs a Senior Staff Software Engineer on the Data Infrastructure team at Instacart, you will play a pivotal role in shaping the technical landscape of our data platform, which is crucial for our company's data strategy. You'll be responsible for guiding the architecture roadmap that supports our storage and compute layers, streaming infrastructure, analytics tools, and governance systems. This position is ideal for a strategic thinker with deep technical expertise who can make a significant impact at a company-wide level.You will lead long-term architectural planning for our core data platform, influence major investment decisions, and serve as a thought leader within the engineering community and beyond. Your contributions will directly affect how Instacart scales its decision-making processes and will shape the economic framework of one of the most data-driven tech companies in the grocery sector.

About ClickHouseRanked among the top innovative cloud companies in the 2025 Forbes Cloud 100 list, ClickHouse is rapidly expanding its reach with over 3,000 clients and an annual recurring revenue (ARR) growth exceeding 250% year-over-year. Our expertise lies in real-time analytics, data warehousing, observability, and AI workloads.The company's remarkable progress was recently affirmed with a $400M Series D funding round. In just three months, we've welcomed prominent clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex, who are either adopting our platform or enhancing their existing implementations. These esteemed clients join a robust lineup of AI trailblazers and global brands like Meta, Cursor, Sony, and Tesla.We are dedicated to revolutionizing how organizations leverage data. Join us on this exciting journey!About the TeamThe Cloud Infrastructure Engineering team is responsible for creating and managing the essential components of the ClickHouse Cloud data plane from end to end. This encompasses compute, networking, security, and a multi-cloud, multi-region architecture to deliver a reliable and scalable managed ClickHouse experience for our customers. We are seeking highly skilled and experienced cloud infrastructure software engineers to design, deploy, and maintain our infrastructure.What will you do?Design and construct a resilient, scalable, and highly available distributed infrastructure.Develop an advanced cloud-native platform leveraging public cloud resources, along with automating our cloud resource management.Collaborate closely with our ClickHouse core database development and security teams to enhance our Software as a Service (SaaS) offerings.Enhance routing and traffic components to boost the reliability and scalability of our cloud services.Consistently improve system availability using industry best practices and distributed systems principles.Design and build security components to protect our infrastructure.

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.

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 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.

We are seeking a highly skilled Senior Software Engineer specializing in Network Router Infrastructure. In this role, you will contribute to the design and development of robust networking solutions that enhance our clients' connectivity and performance. You will collaborate with cross-functional teams to deliver high-quality software that meets customer requirements and industry standards.

Bree serves Canadians who live paycheck to paycheck, focusing on those who need short-term credit solutions. With over 800,000 users, Bree has established a strong presence in the FinTech sector. The company maintains profitability, generates eight-figure annual revenue, and continues to see double-digit monthly growth. Bree has experienced zero voluntary employee turnover. After joining Y Combinator in 2021, Bree raised a $2 million seed round. Role overview The Software Engineer, Infrastructure will work to strengthen the reliability, scalability, and maintainability of Bree's data-driven systems. This position focuses on supporting a growing user base by improving system performance and stability. What you will do Design, build, and maintain infrastructure to support Bree's data systems. Refactor code and improve system architecture to reduce technical debt. Optimize PostgreSQL databases through query tuning, indexing, and capacity planning. Implement Infrastructure as Code using tools such as Pulumi, Terraform, or AWS CloudFormation. Set up monitoring and alerting with tools like Grafana or Datadog. Enhance system observability by improving metrics, logging, and tracing. Requirements Bachelor's degree in Computer Science or a related discipline. Experience building scalable, reliable, and maintainable infrastructure. Strong knowledge of PostgreSQL and hands-on database optimization skills. Familiarity with Infrastructure as Code concepts and tools. Experience with monitoring tools and practices. Location This position is based in Toronto.

Affirm seeks a Senior Staff Software Engineer to join the Consumer Engineering group, focusing on web infrastructure. This remote role is open to candidates based in Canada. What you will do Design, build, and maintain scalable web applications that shape the consumer experience at Affirm. Collaborate with cross-functional teams to enhance and support web infrastructure. Emphasize performance, security, and reliability throughout all projects. Location This position is remote within Canada.

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.