Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Software Engineer, Backend

$167.5k - $235k per year

Justworks

Who We Are

At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset - our people.

We’re helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data‑driven and never stop iterating. If you’d like to work in a supportive, entrepreneurial environment, are interested in building something meaningful and having fun while doing it, we’d love to hear from you.

Our Values

We’re united by shared goals and shared motivations at Justworks. These are best summed up in our company values, which are reflected in our product and in our team.

Who You Are

You are self‑driven and like to work with others to remove roadblocks. You are curious, and love to explore and learn new technologies. You have demonstrated the ability to build, deploy and maintain large‑scale, complex applications. You care more about solutions and impacting the customer experience than using a particular tool or framework.

Your Success Profile

What You Will Work On

  • Independently own large‑scoped projects from initial discovery through launch with a focus on outcomes and customer impact
  • Collaborate with a cross‑functional team to find solutions to customer challenges
  • Improve the performance, reliability, and scalability of our existing systems
  • Promote engineering excellence through technical leadership, knowledge‑sharing and mentorship
  • Add capabilities to our high‑volume, fault‑tolerant processing infrastructure
  • Enhance our testing, monitoring and continuous deployment infrastructure
  • Keep extremely sensitive data compartmentalized and secure

How You Will Do Your Work

As a Senior Software Engineer, how results are achieved is paramount for your success and ultimately results in our success as an organization. In this role, your foundational knowledge, skills, abilities and personal attributes are anchored in the following competencies.

Good judgment – the exercise of critical thinking, analyzing and assessing problems and implications, identifying patterns, making connections of underlying issues, understanding risks and developing mitigation strategies, and taking ownership of the outcome.

Resourcefulness – taking a can‑do approach, even in the face of obstacles and constraints by assessing what’s in front of you and effectively and efficiently optimizing what you have, whether it's working on something new or thinking about how to do something better.

Teamwork and communication – putting our collective best together through documentation, collaboration, relationship‑building, listening, empathy, recruiting, and evangelism. Influence and leadership – fostering a community of knowledge‑sharing, collaboration, mentorship, and forward‑thinking.

Skills and knowledge – the capacity to actively learn and apply specific domain knowledge, know‑how, and best practices to continually enhance and improve.

In addition, all Justworkers focus on aligning their behaviors to our core values known as COGIS . It stands for:

  • Camaraderie – Day to day you can be seen working together toward a higher purpose. You like to have fun. You’re an active listener, treat people respectfully, and have a strong desire to know and help others.
  • Openness – Your default is to be open. You're willing to share information, understand other perspectives, and consider new possibilities. You’re curious, ask open questions, and are receptive to thoughts and feedback from others.
  • Grit – You demonstrate grit by having the courage to commit and persevere. You’re committed, earnest, and dive in to get the job done well with a positive attitude.
  • Integrity – Simply put, do what you say and say what you'll do. You’re honest and forthright, have a strong moral compass, and strive to match your words with your actions while leading by example.
  • Simplicity – Be like Einstein: “Everything should be made as simple as possible, but no simpler.”

Qualifications

  • Minimum of 5 years of professional hands‑on experience
  • Mastery of modern server‑side languages, Golang is a plus but not required
  • Proficiency with SQL
  • Proficiency with cloud infrastructure management, preferably AWS
  • Experience supporting and mentoring other engineers and acting as a “force multiplier”
  • Experience working closely with designers and product managers

Technologies Used

  • Golang, Ruby on Rails, JavaScript, MySQL, Kafka, AWS, Git, Memcache, Redis, ElasticSearch, Docker, Terraform, Kubernetes, CircleCI, DataDog

The base wage range for this position based in our Toronto office is targeted at $167,500.00 to $235,000.00 CAD per year. Actual compensation is based on multiple factors that are unique to each candidate, including and not limited to skill set, level of relevant experience, and specific work location. Salary ranges for positions based in other locations may differ based on the cost of labor in that location.

For more information about Justworks’ Total Reward Philosophy, including all of the perks and benefits we are proud to offer our team members, please visit Total Rewards @ Justworks.

Diversity At Justworks

Justworks is committed to maintaining a workplace where diversity of identity, culture, and life experience is the norm and is celebrated authentically and respected consistently. Diversity in our work, our people, and our product drives creativity and innovation, entrepreneurial leadership and integrity, competitiveness, and collaboration throughout our business and in the market. We depend on our differences to make our team stronger, our workplace more dynamic, and our product accessible to all of our customers.

We’re proud to be an equal opportunity employer open to all qualified applicants regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital or familial status, disability, pregnancy, gender identity or expression, veteran status, genetic information, or any other legally protected status. Justworks is fully dedicated to providing necessary support to candidates with disabilities who may require reasonable accommodations. We also provide reasonable accommodations to employees based on their sincerely held religious beliefs, as well as for other covered reasons consistent with applicable federal, state, and local laws. If you're in need of a reasonable accommodation, please reach out to us at View email address on ca.talent.com. Your comfort and success matter to us, and we're here to ensure an inclusive experience.

Our DEIB Report

#J-18808-Ljbffr
Vacancy posted 8 days ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer, Backend in Toronto, ON vacancy
  •  ...and supporting production-ready products from scratch. 5+ years of professional experience with Java. 6+ years of experience in backend development. Quick learner with an ambitious and results-driven personality. Excellent communication and organizational skills.... 
    Senior
    Internship
    Immediate start

    Venn (formerly Vault)

    Toronto, ON
    8 days ago
  • $120k - $150k per year

    Job Title: Senior Full Stack Engineer Job ID: 87833 Location: Toronto, Ontario Overview Our client provides specialist financial services to alternative investment funds, investors, multinationals and private clients worldwide. With over 10,000 employees in 45 countries they... 
    Senior
    Worldwide

    TEEMA

    Toronto, ON
    8 days ago
  • Drive innovative backend solutions as a Senior Software Engineer at Thomson Reuters. Focus on AI services in a hybrid environment while shaping future experiences for tax and accounting professionals. Thomson Reuters is looking for a Senior Software Engineer specialized... 
    Senior

    Refinitiv

    Toronto, ON
    2 hours ago
  • Elevate call center technology at RBC as a Senior Software Engineer focused on backend development. Utilize your expertise in Java and Spring to drive GenAI applications. In this full-time role, you will specialize in backend solutions, ensuring efficient agent workflows... 
    Senior
    Full time

    RBC

    Toronto, ON
    2 hours ago
  • $118k - $157.5k per year

     ...focus on problem solving and engineering perfection. What you will accomplish...  ..., multi‑tier distributed software systems scaling beyond 1B...  ...influence peers, juniors and seniors both within the organization...  ...eBay. Experience building backend services using Java and Kotlin... 
    Senior
    Immediate start

    eBay Inc.

    Toronto, ON
    8 hours ago
  • Senior Software Engineer, Backend (AI Agent Integrations) Cresta unlocks the true potential of the customer experience, turning every conversation into a competitive advantage. Cresta’s unified AI platform combines conversational AI agents, real-time human agent augmentation... 
    Senior
    Work at office
    Local area
    Remote work
    Work from home
    Home office

    Cresta

    Toronto, ON
    2 hours ago
  • Join Kaseya as a Senior Software Engineer to influence backend design for SaaS products enriched with AI and data capabilities. This role requires hands-on engineering to build robust backend systems integrated with machine learning. You’ll focus on the technical architecture... 
    Senior

    Kaseya Limited

    Toronto, ON
    8 days ago
  • $150k - $200k per year

     ...build and improve platforms, workflows, and guardrails that help engineers ship code quickly, safely, and with confidence....  ...Qualifications 4+ years of experience designing, developing, and launching backend systems at scale using languages such as Python or Kotlin. Track... 
    Senior
    Permanent employment
    Work at office
    Remote work
    Flexible hours

    Affirm

    Toronto, ON
    8 days ago
  • Elevate your career with eBay's Backend Software Engineering team. As a Member of Technical Staff 2, you’ll design scalable backend systems and enhance eBay's search capabilities. In this role, you'll take ownership of backend architecture and lead the development of search... 

    0017 eBay Canada Technology

    Toronto, ON
    2 hours ago
  •  ...deep observability (tracing, metrics, alerts), drive blameless post‑mortems, and mentor engineers on production ML best practices. What We’re Looking For 5+ years writing production software; 2+ years focused on ML platform or infra. Expert Python (async, typing, packaging,... 
    Senior
    Work at office
    Local area
    Remote work
    Work from home
    Home office

    Cresta

    Toronto, ON
    8 days ago
  • $118k - $157.5k per year

     ...(Marko, React, Javascript, HTML, etc.) Develop technical & domain expertise and apply to solving product challenges Estimate engineering effort, plan implementation, and rollout system changes. Identify project technical risks and make recommendations to mitigate What... 
    Immediate start

    eBay

    Toronto, ON
    8 days ago
  • $140k - $180k per year

     ...Design, build, and maintain scalable backend systems that power our measurement, attribution...  ..., and performance at scale Champion engineering best practices around code quality, testing...  ...improvement Qualifications 5+ years software engineering experience Experience... 
    Senior

    Movableink

    Toronto, ON
    2 days ago
  • Embark on your journey in software engineering with GenPark as a Backend Software Engineer Intern in Toronto. This role focuses on developing backend services...  ...code, integrating APIs, and collaborating with senior engineers. You’ll also engage in prototyping ideas and... 
    Senior
    Internship
    Remote work

    GenPark

    Toronto, ON
    2 hours ago
  • Shape the future of backend services as a Backend Software Engineer. Focus on creating and reviewing RESTful APIs using Java/Spring Boot for optimal service performance. In the role of Senior Software Developer, you will lead service design efforts and orchestrate API integrations... 
    Senior

    Compunnel, Inc.

    Toronto, ON
    3 days ago
  •  ...Nimble does not have an entity established in Canada. As a Senior Backend Engineer , you will have a hand in architecting the technology and customer...  ...( ). You will join a team of world-class, highly motivated software engineers who build for performance, reliability, and... 
    Senior
    Live out
    Work at office

    NimbleRx

    Toronto, ON
    8 days ago
  • Transform healthcare delivery as a Backend Software Engineer with Teladoc Health Canada. This hybrid role focuses on scalable API and backend service development for virtual care. Join Teladoc Health's dedicated engineering team to create solutions that improve consumer... 

    Teladoc Health Canada

    Toronto, ON
    8 hours ago
  •  ...have a proven track record of delivering software solutions that can solve critical business...  ...to implementation , 3+ years of software engineering industry experience , BS/MS or equivalent...  ...relevant work experience , Experience in backend software development of large-scale... 

    Lyft

    Toronto, ON
    8 days ago
  • $140k - $180k per year

     ...assisted development tools such as Claude and Opencode to accelerate backend development, including code generation, debugging, and...  ...services. Demonstrated ability to incorporate AI tools into the software development lifecycle, using Claude or Opencode for tasks like automated... 
    Senior
    Worldwide
    Flexible hours

    Us Mobile

    Toronto, ON
    2 hours ago
  • Drive innovation in advertising at eBay as a Software Engineer, specializing in backend technologies. Collaborate with a visionary team to enhance user experiences through technical excellence. At eBay, we embrace unique perspectives to forge economic opportunities through... 

    eBay

    Toronto, ON
    8 hours ago
  • Drive innovation in travel tech as a Senior Backend Engineer with Hopper. Contribute to scalable lodging and car services while working in a remote-first environment. Become a part of Hopper’s Lodging and Cars Supply team, focusing on high-volume, real-time transactions.... 
    Senior
    Remote work

    Hopper

    Toronto, ON
    2 days ago
  •  ...Responsibilities We seek a skilled and experienced Backend Engineer to join our development team. As a Backend Full...  ...be a part of our mission to build innovative software solutions that drive our business forward! The Senior Backend Developer will be responsible for the following... 
    Senior
    Full time
    For subcontractor
    Work at office
    Immediate start
    Flexible hours

    United States Digital Space LLC

    Toronto, ON
    8 days ago
  • $156k - $196k per year

     ...CircleCI job seekers. About CircleCI Engineering CI/CD has been solved. Now it's being...  ...makes the call. Invent new interfaces. Software delivery is being reinvented. Pipelines run...  ...React and TypeScript. Comfortable owning backend services in Go: API design, data modeling... 
    Senior
    Local area

    Circle Internet Services Inc.

    Toronto, ON
    7 days ago
  • About the Team and the Role The Search Backend team that builds and operates the core services powering eBay Search at scale. We build...  ..., maintainability and extensibility. Partner across multiple engineering, product and applied science teams to define interfaces,... 
    Long term contract
    Immediate start

    eBay

    Toronto, ON
    8 days ago
  • $100k - $130k per year

     ...to hear from you. About the role: We’re looking for a Senior Software Engineer who enjoys building reliable, scalable systems and working...  ..., Product, QA, and DevOps to design, build, and maintain backend services and web applications. You’ll own features end-to... 
    Senior

    TRAFFIX

    Toronto, ON
    2 days ago
  • Position Description Senior Software Engineer Reporting to: Director of Software Engineering Signal 1 helps health systems accelerate AI adoption...  .... Qualifications 5+ years of experience in building backend systems and AI applications. You can design and defend... 
    Senior
    Internship

    signal1

    Toronto, ON
    2 days ago
  • Lead the evolution of VendorPMs platform as a Senior Backend Engineer in downtown Toronto. Utilize your expertise in Node.js, TypeScript, and AWS...  ...70,000 vendors. With at least five years of experience in software engineering, you’ll design, develop, and maintain critical product... 
    Senior

    VendorPM

    Toronto, ON
    2 days ago
  • "Learning fast is an engineer’s superpower in the AI era." About Us: Viggle AI is a startup backed by top-tier investors such as a16z and...  ...of AI-powered avatar and video generation. We're hiring a backend engineer to own and evolve our core platform — a Go-based business... 
    Work at office
    Worldwide

    Viggle AI

    Toronto, ON
    8 days ago
  • Requirements 5–10 years of relevant software engineering experience building production web applications Strong proficiency in either backend (Python, Node.js) or frontend (React, Angular) development as your primary discipline Working knowledge of — or genuine eagerness... 
    Senior

    ZoomInfo

    Toronto, ON
    8 days ago
  •  ...of today and tomorrow. Who You Are: We’re looking for a Senior Software Engineer to help shape and scale the systems behind AdmitONE, our multi...  .... In this role, you will focus on building robust backend systems while taking end-to-end ownership of features, including... 
    Senior
    Internship
    Local area

    AdmitONE

    Toronto, ON
    8 days ago
  • Senior Software Engineer, Feature Team HireArt is a modern staffing platform for companies to source, employ, and manage contract workers. Our goal...  ...accountable for the code you ship Our Tech Stack Backend: Ruby on Rails 8.1 Frontend: React 18.3 (with some Stimulus... 
    Senior
    Contract work
    Internship
    Work at office
    Remote work
    Work from home
    Home office

    business

    Toronto, ON
    8 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer, Backend. Be the first to apply!