
Senior Full Stack Engineer (Frontend-leaning) - Internal Tools
StackAdaptPosted 5/9/2025

Senior Full Stack Engineer (Frontend-leaning) - Internal Tools
StackAdapt
Job Location
Job Summary
StackAdapt is seeking a Senior Full Stack Engineer with expertise in React, Ruby on Rails, and Go. The ideal candidate will design, improve, and debug complex distributed systems, optimize performance, and collaborate with the team to develop critical features and automation-driven tools. With a strong focus on scalability, testability, and maintainability, this role offers opportunities for growth and impact within a fast-growing company. StackAdapt is a Remote First company with flexible work options, competitive salary, and equity. The successful candidate will be responsible for mentoring junior engineers, contributing to code reviews, and providing technical leadership.
Job Description
What You Will Be Doing:
- Design, improve, and debug complex, scalable distributed systems.
- Find solutions to optimize bottle-necks and general system wide performance.
- Always on the lookout to keep the tech stack updated with current standards.
- Write extensible scalable and test-driven code.
- Take part in technical planning and architectural decision-making.
- Collaborate with team members on designing scalable, well tested, and well documented web architecture, including APIs and backend systems.
- Be able to take responsibility and ownership of projects from start to finish.
- Contribute to code reviews and technical spec reviews.
- Provide mentorship to interns and junior engineers.
What We Are Looking For
- At least 5+ years of full-time work experience building highly performant web applications with outstanding UX.
- Strong proficiency in React with recent, hands-on experience building modern web applications.
- Familiarity with our full-stack technologies is a big plus: Ruby on Rails (highly preferred), TypeScript, GraphQL, and Go.
- Proven ability to work across the stack, even if frontend is your strength.
- Experience collaborating closely with Product & Design to design, implement and iterate on high impact end-to-end product experiences.
- Experience working with relational databases and key-value stores
- Experience analyzing, benchmarking and optimizing web application page load performance across the entire stack.
StackAdapters Enjoy
- Competitive salary + equity
- RRSP matching
- 3 weeks vacation + 3 personal care days + 1 Culture & Belief day + birthdays off
- Access to a comprehensive mental health care platform
- 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
- Robust training and onboarding program
- Coverage and support of personal development initiatives (conferences, courses, etc)
- Access to StackAdapt programmatic courses and certifications to support continuous learning
- Mentorship opportunities with industry leaders
- An awesome parental leave policy
- A friendly, welcoming, and supportive culture
- Our social and team events!