Lead Senior Software Engineer - Rust

About TailscaleTailscale is revolutionizing the Internet by providing innovative software that simplifies secure connections between individuals and their devices, regardless of their location. We cater to everyone from enthusiastic hobbyists to large multinational corporations, empowering teams of all sizes to safeguard their networks, share access to internal tools, and much more. Our vision is to create a user-friendly, sensible, and secure Internet experience reminiscent of its early days. Established in 2019, we operate as a fully distributed team and are supported by notable investors such as Accel, CRV, Insight, Heavybit, and Uncork Capital.Job DescriptionWe are on the lookout for a dedicated and talented full-time Software Engineer to join our expanding team. In this role, you will collaborate with the engineering team to:Provide vital support to internal business units through shared engineering services and functionalities, crafting the tools and processes that enable their success.Foster relationships with various stakeholders across the organization to understand their needs and manage projects from inception to completion.Work closely with customer-facing internal teams to enhance their operations, taking pride in easing their daily tasks. Collaborate with product engineering to analyze data that informs business decisions.Sample deliverables for this position may include:Implementing new developer tools to boost engineering productivity.Enhancing current tools, such as CI/CD systems.Utilizing production data to identify potential issues.Creating tools for development and staging environments.As a fully remote and early-stage company, we seek a highly motivated individual who can drive product development forward. The ability to think quickly, collaborate with technically adept teams, and work effectively in an asynchronous environment is crucial.Key ResponsibilitiesCollaborate with a team of engineers to design, build, test, and document essential software components.Take ownership of the services that comprise Tailscale’s product by ensuring observability, participating in incident response, and addressing customer support escalations.Evaluate and enhance the efficiency, scalability, and reliability of various system resources.

Join Sony Interactive Entertainment Global as a Software Engineer in Build & Tools, where you'll play a pivotal role in enhancing our development processes. Collaborate with cross-functional teams to build innovative tools that empower our engineering teams and improve the overall efficiency of software development.

Join Waabi, a cutting-edge AI company founded by the renowned Raquel Urtasun, as we revolutionize self-driving technology. Our world-class team is on a mission to harness AI's potential to create safe autonomous driving solutions, bringing the promise of self-driving technology closer to commercial viability than ever before. Supported by top-tier investors from the technology, logistics, and Canadian innovation sectors, we are positioned for rapid growth.With offices in Toronto and San Francisco, Waabi is expanding and seeks diverse, innovative, and collaborative talent eager to make a positive impact on the world.In the Tools team, you will develop software solutions tailored to Waabi's unique challenges and accelerate our development processes. You will enhance our existing tools and introduce new services to support our objectives.

ABOUT BASETENAt Baseten, we empower AI innovators by providing mission-critical inference solutions for some of the most dynamic companies in the field, including Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma, and Writer. Our unique blend of applied AI research, adaptable infrastructure, and intuitive developer tools allows organizations at the forefront of AI to deploy state-of-the-art models efficiently. With rapid growth and a recent $300M Series E funding round led by prominent investors like BOND, IVP, Spark Capital, Greylock, and Conviction, we are on an exciting journey. Join us in shaping the platform that engineers rely on to launch AI products successfully.THE OPPORTUNITYWe are actively seeking early-career Software Engineers to join our dynamic team in Vancouver, BC. This specialized position merges high-performance computing (HPC) with Large Language Model (LLM) engineering. You'll take charge of creating an automated suite of tools designed to diagnose and enhance our next-generation AI infrastructure.In this role, you will delve deep into model performance, breaking down systems to analyze their efficiency at the hardware level. You will develop tools for measuring GPU FLOPS, stress-testing InfiniBand clusters, and establishing the benchmarks necessary for production readiness.RESPONSIBILITIESPerformance Benchmarking: Automate and execute standard LLM quality benchmarks (GSM8K, MMLU) alongside tailored performance suites for specific workloads, including long-context windows and KV cache reuse.Infrastructure Validation: Design and implement automated acceptance tests for new GPU clusters across both x86 and ARM systems, evaluating GPU memory bandwidth, networking throughput, and multi-node networking performance.Model Development Experience: Create and maintain internal GPU-enabled development environments akin to GitHub Codespaces, ensuring the team has access to high-performance "dev machines" optimized for model experimentation.Tool Development: Contribute to and enhance tools such as InferenceMAX and genai-bench to automate model evaluation and optimization processes.Deep Hardware Profiling: Utilize PyTorch Profiler and NVIDIA Nsight Systems to gather performance profiles, pinpoint bottlenecks, and debug NVIDIA compute/networking issues.

Are you ready to challenge your limits and discover your true potential?At Coinbase, we are dedicated to enhancing economic freedom globally. This ambitious mission requires our utmost effort daily as we develop the future of the onchain platform and, with it, the next iteration of the global financial system.We seek a candidate who is not only passionate about our vision but also believes in the transformative power of cryptocurrency and blockchain technology to revolutionize financial systems. We are looking for someone who is eager to create a lasting impact, thrives under pressure, and values collaboration and feedback to continuously improve. You should be someone who embraces challenges and tackles complex problems head-on.Our work culture is dynamic and may not suit everyone. However, if you aspire to shape the future alongside top-tier professionals who expect excellence, this is the perfect environment for you.While many positions at Coinbase offer remote flexibility, we do require in-person participation throughout the year. Our team and company-wide offsite events are organized multiple times a year to foster collaboration, connection, and alignment. Your participation is encouraged and fully supported.The CDP APIs offer the simplest path for developers to start creating crypto applications. Initiated by our CEO Brian Armstrong, these APIs allow developers with no prior crypto experience to begin engaging with cryptocurrency in under 30 seconds. Our vision is to onboard the next million developers into the crypto world, facilitating trading, lending, payments, and more.The CDP Wallets & Onchain Tools team is responsible for both server-side APIs and client-side libraries across various programming languages. We are searching for a talented software engineer to create a platform that accelerates web3 development. The ideal candidate will be enthusiastic about enhancing every facet of the developer experience, which includes designing APIs and SDKs, crafting clear and informative documentation, creating intuitive onboarding flows, and integrating user feedback. Comfort with both frontend and backend codebases is essential, as is the ability to deliver high-quality results at a rapid pace. Our team comprises some of the most accomplished software engineers at Coinbase, all eager to release a groundbreaking suite of APIs and SDKs swiftly.

Role Overview Velan Studios is looking for an Engine and Tools Programmer in Toronto, Ontario. This role focuses on building software that supports game development and improves the workflow for designers and artists. The work directly shapes the tools and technologies used in current and future game projects. What You Will Do Develop and maintain tools that help artists and designers work more efficiently Collaborate with team members to identify and solve technical challenges Contribute to the technology behind new and ongoing games Your work will help streamline development and enhance the final gaming experience.

Join Segula Technologies as a Mechanical Engineer specializing in Methods & Tools. In this role, you will be instrumental in enhancing our engineering processes and tooling strategies to optimize efficiency and innovation in our projects. You will collaborate with interdisciplinary teams to develop and implement state-of-the-art mechanical solutions.

Veeva Systems is dedicated to revolutionizing the life sciences sector by providing innovative cloud-based solutions that expedite the delivery of therapies to patients worldwide. As one of the fastest-growing SaaS companies in history, we proudly achieved over $3 billion in revenue last fiscal year, with an abundance of growth opportunities on the horizon. At Veeva, our core values include: Doing the Right Thing, Ensuring Customer Success, Supporting Employee Success, and Maintaining Speed. In 2021, we made a significant impact by becoming a public benefit corporation (PBC), which legally binds us to balance the interests of our customers, employees, society, and investors. As a Work Anywhere organization, we empower you to choose your work environment, whether from home or in our offices, to enhance your productivity and well-being. Join us in our mission to transform the life sciences industry and positively impact our customers, employees, and communities.The RoleBecome an integral member of our team responsible for developing core platforms that support our Quality Engineering initiatives. In this dynamic role, you will design and manage scalable internal tools and cloud infrastructure that enhance CI/CD workflows and boost system reliability. Collaborate closely with DevOps and QA engineers to facilitate efficient results analysis and issue resolution in a remote-first setting.

Join Sentry as a Staff Software Engineer in Issue WorkflowAt Sentry, we believe that bad software should be a thing of the past. Our mission is to empower developers to create better software at a faster pace, allowing everyone to truly enjoy technology once again.With over $217 million in funding and a community of more than 100,000 organizations, including notable names like Disney, Microsoft, and Atlassian, we are revolutionizing performance and error monitoring tools to help developers spend less time fixing bugs and more time innovating.We promote a hybrid work model across our global offices, designating Mondays, Tuesdays, and Thursdays as in-office days to foster collaboration. If you are passionate about creating tools that enhance the digital experience, we invite you to join us in building the next generation of software monitoring solutions.The RoleAs a Staff Software Engineer on our Issue Workflow team, you will be at the forefront of our primary product surface. Our platform processes billions of events daily, transforming them into actionable insights for millions of developers to expedite bug resolution.You will architect the systems that drive this experience, bridging high-scale distributed systems with product engineering. Your responsibilities will include building real-time data pipelines, developing search backends, and creating analytical systems to filter valuable insights from vast amounts of data. Every architectural decision you make will directly impact millions of debugging sessions, defining the future of Sentry’s most trafficked platform.Key ResponsibilitiesLead Technical Strategy: Collaborate with engineering leadership, product teams, and design to define the long-term technical vision for the Issue Workflow platform. Make informed decisions regarding architectural direction, technology selection, and technical debt management to lay a robust foundation for Sentry’s growth.Address Performance Challenges: Tackle complex performance and scalability issues to enhance system efficiency.Enhance User Experience: Develop features that not only function well but also provide a delightful user experience. You understand the importance of speed in developer interactions and meticulously optimize interfaces and error handling processes.

MaintainX is an AI-driven Enterprise Asset Management (EAM) platform focused on supporting blue-collar professionals around the world. The company delivers mobile-first software that helps teams keep critical operations running. Over 12,000 businesses, including Duracell, Univar Solutions Inc., Titan America, McDonald's, Brenntag, Cintas, Xylem, and Shell, use MaintainX to improve operational reliability and efficiency. MaintainX recently completed a $150 million Series D funding round, bringing total funding to $254 million and a company valuation of $2.5 billion. The Role: Software Development Manager, AI Builder Tools (Remote, Canada) MaintainX is seeking a Software Development Manager to lead the newly formed AI Builder Tools team. This group focuses on AI-powered developer tooling designed to improve the productivity of every MaintainX engineer. The team’s mission is to build intelligent tools that support the full software development lifecycle, starting with autonomous coding agents that can take on tasks, make changes, and open pull requests with minimal oversight. What You Will Do Lead and mentor a team of platform engineers building AI-powered developer tools Shape the strategy and execution for autonomous coding agents and related infrastructure Drive improvements in how MaintainX engineers develop, deploy, and maintain software Champion productivity and efficiency through intelligent tooling and automation About the Team The AI Builder Tools team is dedicated to transforming the developer experience at MaintainX. The group’s work will impact every engineer across the company by introducing tools that automate routine tasks and streamline workflows. Location This role is remote and open to candidates based in Canada.

At Lyft, we are driven by our mission to connect and empower our community. We cultivate an inclusive environment where every team member can thrive and contribute meaningfully.Join our Mobile Tooling team, dedicated to creating the essential frameworks that empower Lyft's mobile engineers to develop stable, scalable, and high-performing mobile applications. We prioritize developer experience, offering innovative tools that promote swift and flexible development.Are you a passionate engineer excited about building iOS productivity tools and robust infrastructure? Become a vital part of our Mobile Tooling team, where you will contribute to enhancing development practices and speeding up iteration processes for our extensive team of mobile engineers. Our applications manage millions of lines of code and numerous modules, supported by leading mobile build systems that ensure builds occur in under 30 seconds locally and within 15 minutes in CI.We take pride in our apps, which serve millions of users, reflecting our commitment to superior development practices and thoughtful code architecture that facilitates rapid releases. Our focus remains on creating delightful user experiences, balancing our development roadmap between innovating new tools and refining existing ones based on direct feedback from our internal clients—our mobile engineering teams.

Join Huawei Canada as a Co-op Engineer specializing in AI tooling and agent development. In this exciting role, you will collaborate with a dynamic team to innovate and enhance AI solutions that impact various sectors. You will have the opportunity to work on cutting-edge technology, contribute to significant projects, and develop your skills in a fast-paced environment.Your contributions will include developing tooling for AI agents, optimizing processes, and ensuring the smooth integration of AI technologies into existing systems. This position is ideal for aspiring engineers looking to make a mark in the AI domain.

About UsAt Fortis Games, we are dedicated to creating exceptional gaming experiences that unite people while transforming the dynamics of the gaming industry. Our belief in fostering a culture of belonging extends to our games, their communities, and our internal operations. We aim to build powerful connections and lasting memories through our game communities, prioritizing diversity, equity, and inclusion. As a nimble organization, our leadership team comprises seasoned veterans from the gaming industry, offering you ample opportunities to significantly influence our product offerings and the company’s direction. If you are driven by a passion for solving complex challenges through direct communication and a team-oriented approach, you might find your perfect fit here.Role OverviewAs a Senior Software Engineer on our QA Automation Tools team, you will spearhead initiatives that empower our QA and development teams to enhance their workflows with efficiency and confidence. You will work closely within the development team, contributing to the projects you will be delivering. Your role will involve selecting appropriate technologies and architecting scalable solutions that align with a robust quality coverage strategy while tracking key performance metrics. Engaging in a continuous feedback loop, you will ensure that we are building the solutions the team genuinely requires. Your expertise will also enable you to mentor other engineers in addressing larger project demands.Key ResponsibilitiesIntegrate quality assurance efforts throughout the development lifecycle, including build pipelines, automation frameworks, performance metrics, and various internal tools.Create tools and strategies specifically for testing procedurally generated content (PGC).Establish best practices for implementation, ensuring code optimization for performance and scalability across diverse environments.Contribute to defining the advanced QA testing strategy for all Fortis projects.

Join the Harvey RevolutionAt Harvey, we are redefining the landscape of legal and professional services through cutting-edge AI technology and a robust enterprise platform. Our mission transcends incremental improvements; we aim for transformative change that will shape the future for decades. With a rapidly growing customer base of over 1000 clients across more than 58 countries, we are at a pivotal moment of expansion, backed by top-tier investors and a compelling product-market fit.This is a unique opportunity to contribute to a generational company poised for success. We uphold high standards and foster an environment of growth—both personal and professional. Our team is composed of exceptional individuals who are dedicated, driven, and collaborative, working together to tackle significant challenges with a sense of urgency and precision.If you thrive in a dynamic environment, strive for excellence, and wish to help mold the future of work alongside a talented team, we invite you to join us on this journey.Your RoleAs a Frontend Software Engineer at Harvey, you will take ownership of engineering projects that are critical to enhancing user experiences. You will collaborate with a team of skilled and thoughtful engineers, ensuring that our work—from design to architecture to code—is executed to the highest standards. In this role, you will also contribute to building exceptional enterprise-grade collaboration products tailored for law firms.This position is based in Toronto, Canada, and follows a hybrid work model requiring in-person attendance at least three days a week. We also provide relocation support for new team members.Key ResponsibilitiesDesign and develop innovative interfaces that enable seamless collaboration between legal professionals and AI solutions.Lead the complete lifecycle of UI features for Shared Spaces and future Harvey products—covering everything from initial scoping and design reviews to implementation, launch, and continuous iteration.Create polished, high-performance interfaces using React and TypeScript, employing TailwindCSS for refined interactions, resilient state management, and robust error handling.Architect reusable components and design patterns, continually enhancing our internal design system.Optimize frontend performance to handle scaling challenges effectively.

Join our dynamic team at Knak as a Forward Deployed Engineer specializing in AI Internal Tools. In this fully remote position, you will play a crucial role in developing and enhancing our internal tools that leverage artificial intelligence to streamline our processes. Collaborate with cross-functional teams to understand their needs and translate them into innovative solutions.

About UsAt Coalition, we are pioneering the concept of Active Insurance, aimed at preventing digital risks before they materialize. Established in 2017, Coalition integrates extensive insurance coverage with cutting-edge cybersecurity tools, empowering businesses to effectively manage and mitigate potential cyber threats.Here, the opportunity to create meaningful impact through innovative thinking is not just a possibility, it's a daily reality.About the RoleWe are seeking a highly skilled Principal Software Engineer to join our Security Engineering organization. This pivotal role involves tackling Wirespeed’s most intricate detection and integration workflows. You will take full ownership of essential backend services and integrations, overseeing everything from architecture and design to implementation, rollout, and quality assurance. Enjoy the freedom to define the technical trajectory of Wirespeed’s detection and enrichment systems while acting as a technical multiplier for the engineering team.ResponsibilitiesDesign and implement core backend services and integrations that enhance Wirespeed’s detection and enrichment platform.Manage high-impact integrations with critical security tools (such as EDR, identity providers, and SIEMs), focusing on reliability, performance, and maintainability.Collaborate with detection engineering and security operations to convert detection strategies into robust, production-quality logic and pipelines.Establish technical standards for code quality, testing, and observability, ensuring consistent adoption through design and code reviews.Mentor and guide senior engineers, assisting them in navigating complex architectural decisions and developing scalable, secure solutions.

About UsAt Temporal, we are revolutionizing the way developers build applications with our open-source programming model. Our goal is to simplify code, enhance application reliability, and empower developers to focus on delivering features swiftly. We are on a mission to become the indispensable foundation of every developer's toolkit, and we are assembling a talented team to achieve that vision. Our core values shape our culture and drive our decisions: we are curious, ambitious, collaborative, authentic, and humble. As we expand, we seek individuals who resonate with our values, challenge conventional thinking, and aspire to shape our future. If you are passionate about enhancing the developer experience, creating top-notch open-source software and communities, and want to join our dynamic team, we would love to connect with you!SummaryWe are looking for a Senior Software Engineer (or Staff level) to join our Release Engineering team. In this role, you will focus on building and refining the systems that facilitate automated, reliable, and scalable software delivery across the Temporal platform.Your responsibilities will encompass the entire software lifecycle—from design and implementation to deployment and ongoing operation. You will collaborate with engineering teams to evolve release automation, enhance tooling, and minimize manual intervention in our build and shipping processes.What You'll DoDesign, develop, and maintain tools and systems that support release automation and deployment workflows.Write clean, reliable, and concurrent code for distributed systems, including build pipelines and deployment tooling.Collaborate with cross-functional teams to enhance release quality and boost developer productivity.Document technical designs, deployment best practices, and operational procedures.Engage in design reviews within small teams and contribute practical engineering solutions.What You’ll LearnDiscover innovative ways to leverage Temporal throughout the release and deployment lifecycle.Deepen your knowledge of Temporal’s architecture and service interactions.Experiment with new automation patterns, testing strategies, and workflow designs to enhance release confidence.

Since its inception, Fivetran has been dedicated to simplifying and ensuring reliable access to data, akin to the reliability of electricity. Our customers benefit from seamless data integration into their warehouses, ready for querying without the burden of engineering or maintenance. We take pride in empowering organizations to become genuinely data-driven through our innovative technology.About the RoleWe are seeking a Staff Software Engineer to join our Reverse ETL product engineering team.Previously known as Census, we became part of Fivetran in May 2025 to enhance our warehouse-first data movement solutions. We are now integrating our product into the Fivetran dashboard, delivering top-tier data activation capabilities to all our clients.In this role, you will be instrumental in embedding data activation features into the Fivetran platform across various aspects such as user interface, authentication, billing, data models, and more. As a senior member of a diverse and collaborative agile team, you will work alongside engineers of varying experience levels.This is a full-time position based in our Toronto office. We offer a hybrid work model that combines remote flexibility with in-person teamwork, including two days a week in the office to foster connections and collaboration.

Join Okendo as a Software Solutions Engineer, where you will be at the forefront of developing innovative software solutions that enhance customer experiences. In this role, you will collaborate with cross-functional teams to design, develop, and implement robust software applications tailored to meet various client needs. Your expertise will contribute to the continuous improvement of our software offerings, ensuring they align with industry best practices and technologies.