Fullstack Engineer, Internal Tools

StackAdapt

StackAdapt

Software Engineering
United States
Posted on Dec 16, 2025

StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision. With 465 billion automated optimizations per second, the AI-powered StackAdapt Marketing Platform seamlessly connects brand and performance marketing to drive measurable results across the entire customer journey. The most forward-thinking marketers choose StackAdapt to orchestrate high-impact campaigns across programmatic advertising and marketing channels.

Engineering at StackAdapt:
As an Engineer at StackAdapt, you will be directly involved in the development of our advertising platform, producing production level code that will have a direct impact on the success of our product. You will work with large data sets and have exposure to modern tech stacks around GoLang, Ruby on Rails, React, GraphQL and more. StackAdapt’s engineering organization believes in working collaboratively and cross functionally. You will get the opportunity to work in a diverse and flexible culture with dedicated career paths to help you succeed.

Watch our talk at Amazon Tech Talks: https://www.youtube.com/watch?v=lRqu-a4gPuU

About the Internal Tools Team:

Our mission is to empower clients and internal teams (Operations, Revenue, Partnerships) by building scalable and intuitive admin tools. We believe that a user-friendly and robust foundation for platform management is critical for driving efficiency, enabling growth, and ensuring the long-term success of StackAdapt.

For example, we build solutions that automate ad compliance audits and streamline customer account management. What makes our team unique is that, while we primarily serve internal StackAdapt teams, our work has a direct or indirect impact on end users by ensuring seamless platform operations. For instance, we own the roles and permissions framework, a foundational system that spans multiple teams and the entire platform. This gives our team the opportunity to collaborate across the organization and drive broad, meaningful impact.

StackAdapt is a Remote First company, we are open to candidates located anywhere in Canada willing to work in EST for this position.

What You'll Be Doing:

  • Write clean, modular, extensible and well-tested code that supports long-term maintainability and scalability.
  • Design, build, and debug complex distributed systems across the full stack.
  • Proactively identify and resolve performance bottlenecks on both the frontend and backend.
  • Participate in technical planning and drive architectural decision-making.
  • Collaborate with engineers to design scalable, well tested, and well documented web architecture, including APIs and backend systems.
  • Work closely with product managers, designers and stakeholders to deliver intuitive and polished user experiences
  • Own projects end-to-end from planning and design through implementation, launch and ongoing maintenance
  • Contribute to a culture of high engineering standards through code reviews and technical design reviews.
  • Stay informed on the latest standards and best practices to keep our tech stack up to date

What You'll Bring to the Table

  • At least 2 years of experience building web applications / integrations with outstanding UX.
  • Knowledge of our full-stack technologies is highly preferred - React, Redux, Javascript, Typescript, REST, GraphQL, Ruby on Rails.
  • Experience collaborating closely with Product & Design to design, implement and iterate on high impact end-to-end product experiences.
  • Experience working with relational databases.
  • Experience with the AdTech industry is a plus.
  • Experience with building Internal Tools is a plus.

StackAdapter's Enjoy:

  • Highly competitive salary
  • Retirement/ 401K/ Pension Savings globally
  • Competitive Paid time off packages including birthday's off!
  • Access to a comprehensive mental health care program
  • Health benefits from day one of employment
  • Work from home reimbursements
  • Optional global WeWork membership for those who want a change from their home office and hubs in London and Toronto
  • Robust training and onboarding program
  • Coverage and support of personal development initiatives (conferences, courses, books etc)
  • Access to StackAdapt programmatic courses and certifications to support continuous learning
  • An awesome parental leave program
  • A friendly, welcoming, and supportive culture
  • Our social and team events!
StackAdapt is a diverse and inclusive team of collaborative, hardworking individuals trying to make a dent in the universe. No matter who you are, where you are from, who you love, follow in faith, disability (or superpower) status, ethnicity, or the gender you identify with (if you’re comfortable, let us know your pronouns), you are welcome at StackAdapt. If you have any requests or requirements to support you throughout any part of the interview process, please let our Talent team know.
About StackAdapt
We've been recognized for our diverse and supportive workplace, high performing campaigns, award-winning customer service, and innovation. We've been awarded:
2024 Best Workplaces for Women and in Canada by Great Place to Work®
#LI-REMOTE