Senior Software Engineer, User Profile

Stack Adapt 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 Stack Adapt Marketing Platform seamlessly connects brand and performance marketing to drive measurable results across the entire customer journey. The most forward-thinking marketers choose Stack Adapt to orchestrate high-impact campaigns across programmatic advertising and marketing channels.

Stack Adapt is the no. 1 performing programmatic advertising platform helping brands accelerate customer engagement and acquisition. This state-of-the-art platform is where some of the most progressive work in machine learning meets cutting-edge user experience.

Ranking the highest in performance by G2 Crowd for the fourth time, we're one of the fastest growing companies in Canada and ranks 6th in Deloitte's Technology Fast 50 ranking and 23rd in Fast 500 in North America.

The User Profile team manages all aspects of user profiles, from bidding stream data ingestion to data processing, augmentation, and storage, and provides different representations of these datasets to various downstream services and stakeholders, including Bidding, Data Science, and other teams. We also own the non-programmatic workflow engine and user segment builder.

Our systems are built in Golang and handle millions of requests per second with an SLA of 100 ms. We leverage AWS, Kubernetes, Kafka, Scylla

DB, and other modern tools and databases. It’s important to note that we are a software services team, not a data engineering team.

Stack Adapt is a Remote First company, we are open to candidates located anywhere in Canada or the United States for this position.

• Building highly scalable, distributed real‑time micro‑services primarily written in Go
• Working with large data sets and various databases including Aerospike, Elasticsearch, Redis, Scylla
  
  DB, Redshift, TiDB, MariaDB
• Build software that utilizes messaging queues such as Kafka, SQS, and Kinesis
• Write performance efficient and memory optimized code

• 5+ years of experience as a Backend Software Engineer
• Extensive hands‑on experience with at least one widely used backend programming language (Go preferred but not required)
• Strong problem‑solving skills in data structures, algorithms, and optimization
• Experience working with relational databases and/or key‑value stores
• Experience building scalable micro‑services and distributed systems
• Bonus:
  Experience in Adtech/Martech, understanding of user/profile management, familiarity with real‑time data streaming and large‑scale data storage, and basic knowledge of Machine Learning concepts

• 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 Stack Adapt programmatic courses and certifications to support continuous learning
• An awesome parental leave program
• A friendly, welcoming, and supportive culture
• Our social and team events!

Stack Adapt 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  you have any requests or requirements to support you throughout any part of the interview process, please let our Talent team know.

We've been recognized for our diverse and supportive workplace, high performing campaigns, award‑winning customer service, and innovation. We've been awarded:

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