Senior Software Engineer specializing in C#

Join System Canada Technologies as a C++ Software Engineer specializing in algorithmic trading. In this full-time role, you will develop and optimize software solutions that drive our trading strategies. You will collaborate with a talented team of engineers and data scientists to enhance our trading platform, ensuring it is robust, scalable, and efficient.

Join our dynamic team at System Canada Technologies as a Software Developer specializing in ASP.NET and C#. We are looking for passionate individuals who are eager to contribute to innovative projects and enhance our software solutions. In this role, you will collaborate with cross-functional teams to design, develop, and implement high-quality applications that meet our clients' needs.

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

Join Carta as a Senior Software Engineer II, where you will play a pivotal role in developing cutting-edge software solutions that empower businesses and investors alike. You will collaborate with cross-functional teams to deliver high-quality applications and contribute to the entire software development lifecycle, from concept to deployment.

Fivetran is seeking a Senior Database Software Engineer to join the team in Toronto, Ontario. This role centers on developing and refining advanced database systems that form the backbone of Fivetran’s products and services. Key responsibilities Design and architect scalable database solutions to enable both new and existing product features Collaborate with engineering, product, and other teams to deliver reliable and efficient database systems Use in-depth knowledge of database technologies to address complex technical issues and enhance system performance Location This position is based in Toronto, Ontario, Canada.

At Braze, we pride ourselves on our exceptional team—approachable, kind, and passionate individuals dedicated to our mission.We strive to foster this passion by setting high expectations, promoting collaboration, and ensuring a harmonious work-life balance as we grow rapidly on a global scale, all while advocating for equity and opportunities within and beyond our organization.To thrive in this environment, you should be ready to hold yourself and others to high standards. There are always opportunities to contribute: exercising independence, taking responsibility, and welcoming new viewpoints are vital for our sustained success.Our inherent curiosity and willingness to share diverse interests create a vibrant culture that is uniquely ours.If you're motivated to tackle exciting challenges and have a proactive approach to change, you will find the empowerment to make a significant difference alongside a dedicated and enthusiastic team. If Braze resonates with you, we look forward to connecting!WHAT YOU'LL DOAs a Platform Software Engineer (PSWE), you will design and develop the distributed systems that underpin Braze's extensive background processing platform. You will manage Sidekiq at Braze, which processes over a trillion jobs daily across Kubernetes clusters worldwide. Your role will encompass autoscaling systems, metrics pipelines, reliable job execution, and the internal frameworks that ensure distributed processing is safe for application teams.Operating at a colossal scale, Braze serves 3.3 billion monthly active users, collects hundreds of billions of data points monthly, and sends billions of messages each day. Our technology stack includes Ruby on Rails, Go, MongoDB, Redis, and Kafka. As a PSWE, you will collaborate with application teams to enhance the Sidekiq platform they rely on and improve its reliability, performance, and developer experience.Main responsibilities:Develop Braze’s embedded frameworks that enable large-scale distributed processing.Design, build, and operate internal software frameworks that support Braze’s asynchronous and background processing systems at scale.Enhance and extend frameworks built on technologies like Sidekiq to reliably execute over a trillion jobs per day across a globally distributed platform.Oversee scaling behavior, reliability guarantees, failure modes, and operational safety of these systems.Provide structured abstractions, tooling, and guardrails that allow application teams to utilize distributed processing safely while minimizing complexity.Improve observability, debuggability, and overall system performance.

Join our dynamic team at Pigment as a Senior Backend Software Engineer. In this role, you will be instrumental in designing and implementing robust backend solutions that empower our innovative platform. You will collaborate with cross-functional teams to enhance system performance and scalability while ensuring a seamless user experience.

This position offers a hybrid work schedule, requiring attendance at our downtown Toronto office twice a week.About OpenTableOpenTable is renowned as a global leader in online restaurant reservations, connecting millions of diners with tens of thousands of restaurant partners worldwide. Our innovative technology allows restaurants to prioritize their guests and teams while providing diners with a seamless experience to discover the ideal dining venue for any occasion.As part of our global team, which includes our sister brand KAYAK and its diverse array of travel products, every OpenTable employee plays a crucial role in delivering exceptional hospitality. This core value influences our products and guides our collaborative work environment.The OpportunityJoin our Diner Core Availability team, responsible for developing and managing the systems that drive availability search for our core diner experience. We aim to provide quick and reliable booking solutions across our extensive global network.We cater to millions of diners, managing thousands of searches every second while adhering to stringent low-latency and high-reliability standards. The team oversees the complete lifecycle of availability queries: from integrating upstream changes (inventory, policies, events) via event-driven pipelines to maintaining highly optimized in-memory and distributed cache layers, and addressing real-time search requests from both web and mobile clients.We are seeking a Staff Engineer who possesses a profound understanding of the underlying technologies and dependencies to tackle complex challenges. This role is pivotal in enhancing the performance, reliability, and simplicity of our availability search solutions at OpenTable.Your work will involve a variety of technologies, including C#/.NET, Redis, in-memory and distributed caches, RESTful APIs, and Kafka-based event-driven architectures (EDA).What You’ll DoAs a hands-on engineer and a technical leader, you will engage in coding, drafting technical design documents, reviewing proposals, and taking ownership of solutions from conceptualization to deployment, monitoring, and iterative enhancements.Code Craft and ArchitectureDesign, implement, and enhance C#/.NET services and APIs that deliver availability data to internal and external stakeholders.Lead the architectural development of availability search services and associated caches, ensuring optimal performance and reliability.

Join Braze as a Senior Software Engineer I in Toronto, where you will leverage your expertise in software development to create innovative solutions. You will collaborate with cross-functional teams to design, develop, and maintain complex systems while ensuring high performance and responsiveness.

Join Lyft as a Senior Software Engineer specializing in Mapping where you will play a pivotal role in enhancing our mapping capabilities. You will collaborate with cross-functional teams to develop innovative solutions that improve our users' experience. This position requires strong problem-solving skills and a passion for building scalable systems.

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.

At Relay, we are on a mission to empower self-made business owners through our innovative digital banking platform. Our goal is to provide these entrepreneurs with the financial clarity, confidence, and control needed to transform their hard work into enduring success. By eliminating the uncertainties of finance, we help turn cash flow from a source of stress into a powerful tool for building robust and resilient businesses.Our Engineering team plays a pivotal role in creating banking products that drive the success of millions of small businesses. As we embark on a transformative journey in the banking sector, we are seeking a passionate and impact-oriented Senior Software Engineer to join our expanding team. We value individuals who embrace smart risks, boldly experiment, and learn from challenges.In this role, you will confront complex challenges, deliver high-quality and robust code, and help shape the systems that underpin our products. This is a unique opportunity to engage with our entire product suite, influence technical decisions, and implement features that our customers adore. If you are eager to create top-tier fintech products within a fast-paced, collaborative environment, this position is perfect for you.Key ResponsibilitiesFull-Cycle Development: Take ownership of features throughout the entire development lifecycle—from design and development to testing, deployment, and monitoring—ensuring reliability and performance at scale.Infrastructure Management: Oversee our production systems, enhance infrastructure, and contribute to the availability, scalability, and resilience of our platform.Collaborative Partnership: Work closely with Product, Design, and cross-functional teams to develop solutions that align with customer and business needs.Innovative Mindset: Proactively seek out opportunities for technical, process, and product enhancements, driving the team to elevate standards and influence long-term technical strategies.Your QualificationsA minimum of 3 years of experience in full-stack software engineering.Demonstrated leadership in developing significant components or features, successfully delivering them with minimal oversight.Experience mentoring junior engineers, sharing knowledge, and fostering the growth and skill development of the entire team.

About HeyMiloHeyMilo is at the forefront of developing AI interviewers that engage in genuine conversations with candidates. Our technology empowers companies to expedite their screening processes and enhance their hiring decisions through advanced conversational AI.As a dynamic and agile team, we collaborate closely with clients to tackle real-world challenges.The RoleWe are looking for a talented software engineer to join our special projects team.In this pivotal role, you will take ownership of solving ambiguous, real-life problems while delivering solutions swiftly. Your work will span product development and engineering, crafting end-to-end solutions that are actively utilized.Key ResponsibilitiesRapidly build and deploy full-stack solutionsPrototype innovative AI-driven features and workflowsTransform vague requirements into functional systemsIterate quickly based on user feedback and real-world usageMake practical trade-offs to maintain paceQualificationsProven experience in full-stack or backend development (Python, TypeScript, etc.)Familiarity with large language models (LLMs) and prompt engineeringExtensive user of AI coding tools (Cursor, Claude Code, Codex, etc.)Strong understanding of databases, APIs, and system designAbility to simplify complex problems into effective solutionsDemonstrated ownership, resourcefulness, and focus on executionComfortable working under pressure and meeting tight deadlinesPreferred QualificationsExperience with conversational AI or telephony systemsBackground in developing production AI systemsWhy Join Us?High degree of ownership and rapid iterationAddress genuine challenges faced by real usersSmall team with minimal bureaucracyWork on impactful projects that benefit our customers and productCompetitive salary, benefits, and RRSP matching

Position Overview:Join our innovative engineering team at eScribe as a Senior Software Engineer. In this pivotal role, you will design, develop, and maintain essential software applications that drive our business forward. Your expertise will guide the evolution of our technology stack, tackle challenging problems, and mentor junior engineers. Embrace AI-assisted development methodologies and contribute to cutting-edge AI features to enhance our product offerings, ensuring efficient delivery and superior code quality. This position is perfect for a skilled engineer eager to thrive in a dynamic and collaborative setting.Key Responsibilities:Lead the design, implementation, and upkeep of high-caliber software applications and features.Take charge of intricate projects, providing technical direction, mentorship, and support to junior team members.Influence architectural decisions to guarantee software systems are scalable, performant, and maintainable.Write reusable code, develop libraries for future use, conduct code reviews, and uphold coding standards.Establish and maintain coding best practices while ensuring top-notch code quality through thorough reviews.Analyze complex technical issues, optimizing code and enhancing system performance.Collaborate effectively with cross-functional teams, including product managers, designers, and fellow engineers, to deliver innovative software solutions.Develop comprehensive test plans and execute testing to ensure software reliability and robustness.Create and maintain technical documentation, including architecture diagrams, API specifications, and best practices.Actively engage in agile development processes, including sprint planning, stand-ups, and retrospectives.Utilize AI-assisted development tools (e.g., Claude Code, PlayerZero) to boost personal productivity, accelerate development velocity, and improve code quality.Contribute to the integration of AI capabilities into our software solutions by developing AI-powered features alongside senior engineers.

NetBrain Technologies, Inc. has built its reputation in no-code network automation since 2004. The company’s Next-Gen platform helps IT operations teams automate key processes across hybrid multi-cloud networks, including diagnostic troubleshooting, outage prevention, and protected change management. Today, more than 2,500 global enterprises and managed service providers rely on NetBrain’s platform. Role overview This Senior Software Engineer - Customer Engineering position in Toronto (hybrid) focuses on both customer support and software development. The role involves handling complex technical challenges from investigation through to solution, often working on issues that directly impact customers and product direction. The position is highly visible and suited for someone who enjoys solving practical problems and shaping a modern SaaS platform. What you will do Lead the resolution of complex, high-impact customer issues by conducting in-depth technical investigations, root cause analysis, and validating solutions. Act as a key connection among customers, support, engineering, and product teams to ensure timely issue resolution and alignment across stakeholders. Translate customer feedback and recurring technical issues into clear, actionable insights that drive product improvements.

Discover OktaOkta is recognized as The World’s Identity Company, empowering individuals to utilize any technology securely, across any device or application. Our versatile and impartial solutions, including the Okta Platform and Auth0 Platform, deliver secure access, authentication, and automation, positioning identity at the forefront of business security and growth.At Okta, we embrace diverse perspectives and experiences. We value lifelong learners and individuals who can enrich our company with their unique backgrounds.Join our mission to create a world where Identity truly belongs to you.The Access Management GroupThe Access Management group facilitates billions of authentications monthly, developing and maintaining technologies for single sign-on, strong authentication, provisioning, and threat protection. Our Access Management service operates on a cloud-based, secure, reliable, and rigorously audited platform with an impressive 99.99% uptime.Your Role as a Senior Software EngineerWe are seeking a skilled and highly technical full-stack software engineer to become part of our Authentication Experience team. This team, a vital segment of the broader Access Management group, is tasked with crafting exceptional authentication experiences tailored for Okta’s Customer Identity and Access Management (CIAM) customers. You will play a crucial role in expediting the adoption of the Okta Identity Engine, empowering our clients to harness the full capabilities of our advanced platform to create personalized, high-performance identity journeys.Okta caters to a diverse range of organizations across both Workforce and Consumer sectors. These varied environments pose unique challenges; therefore, each organization has distinct requirements regarding their desired authentication experiences. We strive to find the ideal blend of robust security and seamless usability, continuously innovating cutting-edge authentication solutions designed for the dynamic, user-focused landscape of consumer identity.If you have a passion for innovation, a keen interest at the intersection of product flexibility and security, and a desire to influence how the world interacts with technology, we invite you to join our team.

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 Sentry builds tools that help developers ship better software. With over $217 million in funding and more than 100,000 organizations relying on its platform, including Disney, Microsoft, and Atlassian, Sentry focuses on performance and error monitoring so teams can spend more time building and less time fixing. This Senior Software Engineer position sits within the Billing Infrastructure team in Toronto, Ontario, Canada. The group maintains the systems that track, price, and bill every event across Sentry’s products, supporting both financial accuracy and customer trust. The team works closely with product, engineering, BizOps, marketing, and sales to create billing systems that keep up with new product features and pricing models. Sentry operates a hybrid work model in its global hubs. In Toronto, in-office work is encouraged on Mondays, Tuesdays, and Thursdays to support collaboration. What You Will Do Work on a next-generation usage tracking pipeline that processes hundreds of billions of events each day with low latency and financial-grade precision. Design and build flexible pricing components to support a range of billing models, from simple per-event charges to complex enterprise contracts. These systems help product and sales teams roll out new offerings quickly while maintaining revenue accuracy. Contribute to technical decisions that address data consistency challenges in billing, such as handling event delays, retroactive pricing changes, and distributed reconciliation across Sentry’s infrastructure. About the Team The Billing & Revenue engineering team connects product development, finance, and infrastructure. Their work ensures every observable event, errors, logs, traces, session replays, is measured and billed accurately. The team values expertise in distributed systems, attention to financial detail, and a strong understanding of how Sentry’s products are used. Who Thrives in This Role Engineers who enjoy solving problems that are easy to describe but hard to execute, such as delivering accurate customer billing while managing massive data flows.

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.