Senior Staff Developer jobs in Toronto – Browse 1,299 openings on RoboApply Jobs

Senior Staff Developer jobs in Toronto

Open roles matching “Senior Staff Developer” with location signals for Toronto. 1,299 active listings on RoboApply Jobs.

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Benevity logo
Full-time|On-site|Toronto, Ontario, Canada

Join Benevity as a Senior Staff Developer, where you will play a pivotal role in shaping our innovative software solutions. As a member of our talented engineering team, you will lead projects that enhance user experiences and drive our mission forward. Your expertise will help us build scalable and efficient systems that meet the needs of our diverse client…

Apr 29, 2026
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Robinhood Markets, Inc. logo
Full-time|CA$234K/yr - CA$275K/yr|On-site|Toronto, Canada

Be Part of the Future of Finance!At Robinhood, we are dedicated to democratizing finance for everyone. With an anticipated transfer of assets totaling $124 trillion expected to be inherited by younger generations in the coming decades, we invite you to join us at the forefront of this monumental movement.About Our Team and Your RoleThe Developer Infrastructure team at Robinhood is crucial in empowering engineers to deliver high-quality software with speed and security. We create and maintain the tools and systems that foster seamless software development experiences across our organization.We strive for infrastructure that is intuitive, robust, and empowering. Our goal is to minimize friction, enhance feedback loops, and boost developer productivity through top-tier tools and operational excellence.We are searching for a Senior Staff Software Developer to lead our Developer Infrastructure initiatives. In this capacity, you will act as a technical leader and architect, influencing the future of developer experience at Robinhood and spearheading projects that enhance velocity, quality, and reliability at scale.This position is based in the office location(s) stated in this job description, aligning with our in-office working philosophy. Please consult your recruiter for further details regarding our in-office expectations.

Mar 18, 2026
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Lightspeed Commerce Inc. logo
Staff iOS Developer

Lightspeed Commerce Inc.

Full-time|On-site|Toronto

Hello! We appreciate your interest Are you seeking a fresh opportunity, or simply exploring what's out there? If so, you may be in the perfect spot!We are on the lookout for a Staff iOS Developer to become a vital part of our team, supporting Lightspeed’s Hospitality product group in our mission to penetrate new markets and countries, while enhancing our advanced hospitality commerce platform.In this role, you will focus on the Lightspeed POS application, empowering our customers to manage their tasks efficiently and effectively, wherever they are. Our goal is to ensure that our flagship product meets the needs of our target audience in the EMEA and NOAM markets, with a wide range of integrations with our partners.You will be part of a dynamic and collaborative team, dedicated to continuously improving our engineering practices and delivering cutting-edge technology, all while maintaining a fun work environment. Ultimately, your contributions will revolutionize the hospitality experience worldwide.Your responsibilities will include:Collaborating with top industry talents to enhance our iOS app by creating innovative features and user-centric workflows.Designing and implementing visually appealing, efficient, and functional mobile applications for iOS devices using Swift and Objective-C.Balancing daily tasks between developing new features and maintaining existing integrations, with a strong emphasis on expanding our market presence through innovative iOS functionalities.Reporting to the Team Lead and engaging with Product Managers, UI/UX Designers, and cross-functional teams to ensure seamless integration and performance within our POS system.Participating in daily Agile ceremonies, engaging in creative brainstorming sessions to challenge conventional approaches, and executing innovative solutions that boost user engagement.Upholding high standards of code quality and system reliability, taking ownership of the codebase, and contributing to the robustness of our infrastructure.Enhancing team performance by sharing insights, adopting best practices in iOS development, and constantly seeking opportunities for innovation and improvement.Explore our Tech Stack here.

Feb 26, 2026
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Full-time|On-site|Toronto

About UsAir-tek is a dynamic software development company based in Canada, renowned for our innovative suite of unique products that have captured a significant share of a vast global market. Our strong product-market fit has led to a growing demand from clients worldwide, and as we enter this pivotal growth phase, we maintain an intentional stealth mode to enhance our strategic positioning.Our diverse and talented team is driven by a shared passion for tackling complex challenges, fostering innovation, and reimagining the passenger-centric travel industry. Situated in Toronto, our inclusive workplace culture prioritizes trust, collaboration, exceptional product delivery, and continuous personal development. We take pride in our work and are dedicated to supporting our colleagues.

Jan 28, 2026
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Findem logo
Full-time|Remote|Toronto (Remote)

Findem is looking for a Senior Staff Full Stack Engineer based in Toronto or working remotely. This role centers on building and improving the company’s platform through hands-on development and close collaboration with colleagues from different disciplines. Role overview This position involves designing, developing, and refining features that support Findem’s products. The Senior Staff Full Stack Engineer will work with cross-functional teams to deliver solutions that drive the platform forward. What you will do Develop and enhance platform features using full stack technologies Collaborate with product, design, and engineering teams to deliver impactful updates Apply deep experience in full stack development to solve technical challenges Requirements Extensive background in full stack engineering Experience working with cross-functional teams Ability to work remotely from Toronto or elsewhere

Apr 28, 2026
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Robinhood Markets, Inc. logo
Full-time|$200K/yr - $235K/yr|Hybrid|Toronto, Canada

Be a part of the financial revolution!At Robinhood, our mission is to democratize finance for everyone. With an anticipated $124 trillion in assets being transferred to younger generations over the next 20 years, we are on the brink of the largest wealth transfer in history. If you're excited to play a pivotal role in this monumental shift in culture and finance, we want to hear from you!About the Team and RoleWe are assembling an exceptional team to tackle some of the most significant challenges in finance using cutting-edge technologies. We're seeking innovative thinkers, exceptional problem-solvers, and passionate builders who are eager to make a difference. Robinhood is a dynamic environment where high achievers excel and complacency is not an option. Our team operates with a strong ethical foundation, with high expectations and equally high rewards.The Backend Platform team is dedicated to facilitating rapid, secure, and dependable backend development at scale. We develop and maintain frameworks, libraries, and tools that empower hundreds of engineers across our backend services. By optimizing development workflows, enhancing security practices, and standardizing service architecture, our team significantly influences how swiftly and safely we deliver products to our customers. You will help build the foundation that backend engineers rely on every day!As a Senior Staff Software Developer, you will set the technical direction and spearhead large, cross-team initiatives aimed at enhancing backend system development and operations. You will architect and promote the adoption of essential platform capabilities like service frameworks, static analysis systems, and developer tools. This position focuses on addressing complex systemic challenges, shaping engineering practices across teams, and ensuring the long-term scalability and reliability of our backend development. You will also provide technical mentorship to engineers and contribute to the planning and execution of significant platform investments!This role is situated in our Toronto office, with an expectation of in-person attendance for at least 3 days a week.At Robinhood, we recognize the value of in-person collaboration in driving progress, fostering innovation, and building community. Our office environment is purposefully designed to be energizing and supportive of high-performing teams.

Mar 27, 2026
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Robinhood Markets, Inc. logo
Full-time|$200K/yr - $235K/yr|On-site|Toronto, Canada

Be a part of revolutionizing finance.At Robinhood, we are committed to making finance accessible for everyone. With an estimated $124 trillion poised to transition to younger generations over the next two decades, we offer you the opportunity to be at the forefront of this monumental shift in cultural and financial landscapes. If you are ready to join us, we invite you to learn more.About the Team & RoleThe Cloud Networking team at Robinhood is dedicated to creating scalable, secure, and dependable networking infrastructure that facilitates communication across all our services. Our mission is to empower engineering teams to seamlessly build and operate microservices by providing foundational networking capabilities that are both resilient and transparent.We are seeking a Staff Software Platform Engineer to architect, develop, and enhance our foundational platform for large-scale services, with a focus on AWS, Kubernetes (K8s) on Amazon EKS, modern networking strategies, and a robust Istio service mesh to ensure secure, reliable, and high-performance systems. This role is integrated into the Network Service Discovery and Communication (SDC) team, which is responsible for service discovery, traffic management, and resilient service-to-service communication across our platform.This position is based in our Toronto office, aligning with our in-office work culture. For further details about our in-office philosophy and expectations, please consult with your recruiter.Your ResponsibilitiesLead the technical strategy and implementation for platform networking, traffic management, and multi-tenant/multi-cluster EKS environments.Design and manage resilient service mesh topologies using Istio, including mTLS, traffic policies, ingress/egress rules, rate limiting, and observability, with Envoy-based extensions as necessary.Establish and enforce platform standards for HTTP/REST and gRPC APIs, covering versioning, contract governance, and performance/SLO baselines.Develop automation, tools, and streamlined processes in Python and Go (Golang) to enhance developer productivity, operational safety, and release processes.

Mar 18, 2026
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Achievers logo
Full-time|On-site|Toronto

Join our dynamic team at Achievers as a Senior Staff Software Engineer, where you'll play a pivotal role in shaping our most prominent member-facing products, including our flagship platform, Recognize. Serving over 4 million users worldwide, you will have the opportunity to deliver impactful solutions in a high-visibility environment. Our technology stack comprises a blend of microservices and micro-frontends utilizing Python, Go, and React, all deployed on Google Cloud Platform (GCP) and Kubernetes. You will tackle complex engineering challenges, from scaling high-traffic systems to designing intuitive user experiences that enhance user satisfaction and engagement. We pride ourselves on solving significant engineering problems at scale.

Oct 8, 2025
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Waabi logo
Full-time|On-site|Toronto, ON

Join Waabi, a pioneering force in Physical AI, founded by the visionary Raquel Urtasun. We are at the forefront of revolutionizing autonomous transportation, developing cutting-edge technology that powers commercial autonomous trucks and robotaxis. With esteemed partnerships in AI, automotive, logistics, and deep tech, we are shaping the future of transportation.Located in Toronto, San Francisco, Dallas, and Pittsburgh, Waabi is rapidly expanding and seeking diverse, innovative, and collaborative individuals eager to make a positive impact on the world. Discover more about our journey at: www.waabi.aiYour Role:- Collaborate within a multidisciplinary team of Engineers and Researchers, utilizing an AI-first approach to ensure safe self-driving technology is deployed at scale.- Develop robust and scalable tools and frameworks that support Autonomous Vehicle (AV) development.- Lead technical discussions and architectural planning in collaboration with both Researchers and Engineers.- Mentor fellow software engineers through code reviews, design discussions, and by sharing best practices in software development.- Assist with task planning and estimation to enhance project efficiency.

Feb 11, 2023
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MaintainX Inc. logo
Full-time|On-site|Toronto

Join MaintainX as a Senior Integrations Developer and play a pivotal role in enhancing our integration platforms. You will be responsible for designing, developing, and maintaining integrations that drive operational efficiency and improve user experience. The ideal candidate will have a strong technical background, be passionate about integration technologies, and thrive in a collaborative environment.

Mar 30, 2026
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HelloFresh logo
Full-time|CA$182K/yr - CA$215K/yr|On-site|Toronto, Ontario, Canada

Join Our Team! The Loyalty & Virality tribe is integral to HelloFresh's strategy for customer retention and organic growth. We develop innovative products and systems that engage customers, reward loyalty, and encourage them to share their HelloFresh experiences with others. Our team is responsible for loyalty and rewards programs, referral systems, viral growth mechanics, and personalized re-engagement experiences, functioning at a global scale across various brands and markets. We combine profound product insight with data-driven experimentation, leveraging AI to create smarter, more personalized customer experiences. If you're enthusiastic about building systems that transform satisfied customers into loyal advocates, this is the ideal team for you! Explore more about our initiatives by visiting our tech blog. Key Responsibilities: Act as a senior technical authority within the Loyalty & Virality tribe, establishing architectural direction, driving technical excellence, and mentoring fellow engineers. This influential individual contributor role significantly impacts the global scaling of our referral and virality systems. Define and oversee the technical strategy for our referral and virality platform, ensuring that our systems remain flexible, resilient, and scalable across all HelloFresh brands and markets. Take complete ownership of the architecture, design, development, deployment, and operations of the Share squad’s microservices. Promote the integration of AI and machine learning within the squads, identifying opportunities for enhancing personalization, predictive engagement, and intelligent reward optimization. Collaborate actively as a solution-oriented member of an autonomous, cross-functional agile team, working closely with Product Owners, Engineers, Designers, and Business Intelligence teams. Facilitate effective communication across the engineering organization, ensuring technical alignment among diverse stakeholders and colleagues. Perform additional duties as assigned. Qualifications: Extensive experience with microservice architecture and event-driven systems (e.g., Kafka, RabbitMQ), alongside distributed architecture principles. Strong proficiency in programming languages and frameworks pertinent to our tech stack. Demonstrated ability to mentor and lead technical discussions, fostering a culture of excellence and continuous improvement. Excellent communication skills, with the ability to articulate complex technical concepts to a non-technical audience. A passion for leveraging data and technology to enhance customer experiences.

Apr 10, 2026
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Continental Technology Solutions logo
Senior Java Developer

Continental Technology Solutions

Full-time|On-site|Toronto

We are seeking a highly skilled Senior Java Developer with over 8 years of robust experience in Java, J2EE, REST services, and Spring frameworks. Your background in Banking and Financial Services will be a distinct advantage as you join our dynamic team. You should possess the ability to swiftly learn new programming languages and effectively communicate your ideas while being open to feedback. A solid understanding of the business line and a knack for delivering high-quality results will be considered valuable assets. We expect you to actively seek enhancements in all areas of the development process. A general knowledge of computing and the ability to incorporate outside knowledge into your work will also be beneficial. Experience with Agile methodologies is preferred.

Sep 12, 2017
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Endava logo
Contract|On-site|Toronto

Endava seeks a Senior Synon Developer based in Toronto to design, develop, and maintain software solutions using Synon. This position supports client projects and ongoing enhancements. Role overview The Senior Synon Developer will work alongside cross-functional teams to deliver software projects. The focus is on building and supporting applications that meet client needs and drive continuous improvement. Key responsibilities Design and develop software solutions with Synon Maintain and enhance existing Synon-based applications Collaborate with teams across disciplines to deliver projects Support ongoing improvements for client solutions Location This role is based in Toronto.

Apr 28, 2026
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Faire logo
Full-time|$216/yr - $216/yr|On-site|Toronto, ON

About FaireFaire is a dynamic online wholesale marketplace driven by the belief that the future lies in local commerce. Independent retailers worldwide are achieving greater revenue than giants like Walmart and Amazon combined, yet remain relatively small in stature. At Faire, we harness the power of technology, data, and machine learning to connect this vibrant community of entrepreneurs around the globe. Imagine your favorite local boutique—we empower them to discover the finest products globally to stock their shelves. With the right tools and insights, we aim to level the playing field, enabling small businesses everywhere to compete against large box stores and e-commerce behemoths.By championing the growth of independent enterprises, Faire fosters positive economic impacts within local communities on a global scale. We are on the lookout for intelligent, resourceful, and passionate individuals to join us as we drive the shop-local movement. If you believe in the power of community, we invite you to be a part of ours.Role Description:Our Engineering organization is the backbone of our marketplace, responsible for the software that enables it to function seamlessly. The Product Security team empowers product engineering teams to create and deploy secure software solutions. We prioritize best engineering practices, striving to deliver software that is secure, thoroughly tested, easy to maintain, and capable of scaling to millions of users. We develop scalable, reusable frameworks, consult with product teams, leverage data-driven insights, and continually iterate on our practices.As a Senior Staff Software Engineer in Product Security, you will take on the role of technical lead for the Product Security domain. You will establish the long-term technical vision for integrating security within Faire’s application framework. Collaborating closely with Platform and Product Engineering teams, you will identify and mitigate security vulnerabilities, spearhead significant security initiatives, and mentor engineers across the organization to enhance secure engineering practices.Additionally, you will lead cross-functional programs to embed security deeply within our architecture, pipelines, and developer experience, effectively minimizing risk while maintaining development velocity.In this role, you will:Define the long-term technical strategy for application security at Faire, establishing scalable and developer-friendly frameworks and principles that facilitate secure development across all product areas.

Mar 13, 2026
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mlabs logo
Full-time|CA$190K/yr - CA$280K/yr|On-site|Toronto, Ontario, Canada

Infrastructure Technical Staff MemberOn-site | Full-timeCompensation: CA$190K – CA$280KJoin our innovative team at mlabs as we create open-source browser infrastructure that drives the future of AI agents. With over 6,000 stars on GitHub and millions of browser sessions served monthly, our platform has experienced phenomenal growth, expanding 50x in 2025 alone. Our technology empowers developers to create seamless web interactions through our robust API.As one of the pioneering team members, you will collaborate with a high-performance group of four talented individuals, backed by top-tier investors, as we tackle the most challenging issues in distributed systems—from kernel-level debugging to global VM orchestration.The RoleAs an Infrastructure Technical Staff Member, your mission will be to build and enhance the distributed systems that support millions of browser sessions. Given the resource-intensive nature of browsers, your focus will be on optimizing performance, ensuring rapid startup times, and maintaining strong multi-tenant isolation across our infrastructure.Key Responsibilities:Global Orchestration: Design and maintain VM orchestration using technologies such as Nomad, Firecracker, and Kubernetes, with a focus on intelligent scheduling and achieving sub-second cold starts.Systems Engineering: Implement kernel-level observability with eBPF and enhance resource isolation through cgroup v2 and NUMA scheduling.Networking: Develop high-performance networking layers, including anycast routing and cross-region failover.Infrastructure as Code: Manage multi-cloud deployments across AWS, GCP, and Azure while overseeing customer VPCs with Pulumi.Product Ownership: Create developer tools for reliable browser automation and actively contribute to our open-source ecosystem.RequirementsExperience: A minimum of 5 years in operating production-scale distributed systems capable of processing thousands of requests per second.Linux Internals: Extensive knowledge of the Linux kernel, syscall optimization, and eBPF.Security & Isolation: Proven experience with multi-tenancy, resource limits, and security boundaries.Network Fundamentals: Competency in diagnosing complex production issues such as packet loss or routing failures at the protocol level.Execution: A proactive approach to ownership of outcomes from architecture through to deployment.

Feb 18, 2026
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Borrowell logo
Full-time|CA$100K/yr - CA$150K/yr|Remote|Remote — Toronto, Ontario, Canada

About Borrowell:Borrowell is dedicated to empowering Canadians with the confidence to manage their finances effectively. Our mission is to provide individuals with the essential tools and insights to understand, build, and utilize their credit wisely.With 1 in 10 Canadians utilizing our services for comprehensive credit monitoring and tailored insights, we offer innovative solutions such as Credit Builder and rent reporting to help consumers enhance their creditworthiness, thereby gaining access to a broader array of financial products at competitive rates. Additionally, we provide personalized recommendations for financial products from Canada's most trusted providers, aligned with each member's credit profile and financial objectives.Our diverse and inclusive team is driven by a shared commitment to making a significant impact in the financial lives of Canadians. We foster a culture characterized by collaboration, humility, and innovation. If you aspire to join a company that is reshaping the financial landscape and empowering Canadians to realize their financial goals, we encourage you to explore career opportunities at Borrowell. Together, we can instill confidence in Canadians regarding their financial matters.About the Role:As a Senior Frontend Developer, you will spearhead the technical vision and execution of our marketing site and web experiences focused on growth. Your role will involve rebuilding and taking ownership of our marketing website utilizing React and Next.js, while implementing server-side rendering and modern routing techniques to enhance speed, SEO, AEO/GEO (AI/Generative Engine Optimization), and adaptability. You will work at the intersection of engineering, marketing, and design to convert site traffic into measurable business results, engaging hands-on with the codebase and influencing the roadmap, architecture, and best practices across the team.In the first 3-6 months, you can expect to:Conduct a comprehensive audit of the current marketing site, assessing performance, SEO, analytics setup, and experimentation capabilities to propose and implement a prioritized improvement strategy.Lead the overhaul or significant refactoring of the site using Next.js and a headless CMS, with a focus on future experimentation and rapid content updates.Establish or enhance analytics and event tracking to provide comprehensive visibility into acquisition, activation, and key conversion events.Initiate a series of growth experiments (e.g., pricing page tests, signup flow optimizations, new landing pages) and develop a repeatable experimentation framework.

Mar 13, 2026
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ASL Consulting logo
Contract|On-site|Toronto

Join our dynamic team as a Senior .NET Web Developer, where your extensive expertise in the .NET framework will be utilized to lead and innovate. We are looking for individuals who excel in both collaborative and leadership roles.Key Responsibilities:Design, develop, test, debug, and deploy cutting-edge web-based and mobile applications.Enhance and maintain existing C# applications across web and mobile platforms.Develop and maintain SQL databases, including tables, views, and stored procedures using Microsoft SQL Server 2008 and above.Communicate effectively regarding project status and proactively identify technical risks.Ensure application security and integrity throughout its lifecycle.Support production systems by analyzing and troubleshooting issues as they arise.Share technical expertise to guide and mentor team members within the organization.Collaborate with internal and external stakeholders during the application development lifecycle.Assist in planning and documenting site architecture and associated artifacts.Implement best practices and architectural standards to enhance overall software quality.Evaluate and recommend technologies based on current product needs and market trends.Devise innovative solutions and prepare technical design and architecture documents.Re-architect legacy systems to enhance scalability and prepare for cloud readiness.

Apr 16, 2021
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Momentum Financial Services Group logo
Senior Software Developer

Momentum Financial Services Group

Full-time|Hybrid|Toronto, Canada

About Us At Momentum Financial Services Group, we are dedicated to empowering individuals by transforming their relationship with money. With over 40 years of experience, we are the driving force behind Money Mart—Canada's largest non-bank branch network—and a pioneer in providing financial solutions to underserved communities. Our offerings range from short-term loans to money transfers and prepaid cards, enabling us to connect over a million customers annually with the financial resources they require, precisely when they need them. At MFSG, we collaborate across various teams and departments to craft solutions that eliminate barriers, ensuring access to financial resources for those who need it most. Whether you are addressing challenges, developing systems, or strategizing, your contributions make a tangible difference in the lives of real people. Your Benefits Competitive Compensation: Our philosophy is straightforward—we strive to align with market standards. We routinely assess industry benchmarks to maintain a competitive and equitable total rewards package, helping us attract and retain talented individuals who share our mission. Annual Performance Bonus: You will have the chance to earn a discretionary bonus based on individual performance and the overall success of the company. Comprehensive Benefits: Our benefits package includes health and dental coverage with 100% of the premiums paid. Additionally, we provide an Employee Assistance Program to support your mental well-being and offer resources for personal challenges. Retirement Savings: Secure your future with our extensive retirement savings options. Flexible Work Environment: Enjoy a hybrid work model that balances remote work and in-office collaboration. At our corporate headquarters, experience a relaxed and cooperative atmosphere, complete with breakout rooms for brainstorming and a variety of snacks to keep you energized. Perks and Recognition: Benefit from tuition reimbursement for continuing education and professional development, along with discounts through Perkopolis, and opportunities to participate in our rewards and recognition programs to celebrate your contributions. The Role: Senior Developer As a Senior Developer, you will take charge of designing, developing, and maintaining sophisticated software systems, guiding junior developers, and ensuring top-notch code quality and standards.

Feb 19, 2026
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Carta logo
Full-time|On-site|Toronto, Ontario, Canada

Join our dynamic team at Carta as a Staff Software Engineer, where you will play a pivotal role in shaping the future of equity management and ownership. You will be responsible for designing and implementing robust software solutions that enhance our platform's performance and scalability. If you're passionate about technology and innovation, this is the perfect opportunity for you to make a significant impact.

Mar 6, 2026
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System Canada Technologies logo
Senior Programmer Developer

System Canada Technologies

Contract|On-site|Toronto

Join the Government of Ontario as a Senior Programmer Developer and leverage your expertise to contribute to vital projects that enhance public services. This contract position offers a unique opportunity to work in a dynamic environment where your skills will directly impact the province's technological advancements.

Nov 1, 2012

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