The Data and Storage Services team is responsible for affirm's data infrastructure across OLTP and OLAP systems, spanning critical online checkout databases, batch orchestration, streaming infrastructure, event-driven frameworks, BI, analytics tooling, large-scale data platforms, and agentic data tools such as semantic layers and internal platform data applications. Our mission is to provide trustworthy, intuitive, and cost-efficient solutions for affirmers to secure, store, analyze, and transform data at exceptional scale.
The Online Storage team provides a set of managed databases as a platform, used to persist data for all affirm services. Our platform enables self-service access to OLTP storage systems, including Relational DB(MySQL), KV(DynamoDB), Distributed SQL(TiDB) and Cache(Redis). As a team, we are responsible for various data and access patterns, including but not limited to mission-critical financial transactional data, data science models, and any new persistence use case. These responsibilities require us to learn and gain deep expertise in various database systems.
We are looking for a talented Software Engineer who can build and scale Cache Services (Redis and Valkey) identifying opportunities to improve how we migrate, productionize, operate, self-service and improve this mission-critical infrastructure to unlock substantial value within our business. Productionize cache clusters: capacity and shard planning, failover and replication setup, upgrades, and staged rollouts with rollback paths.
Operate the fleet in production: define SLOs, build alerting for hot keys,



memory pressure and replication lag, and use on-call findings to reduce KTLO.
Partner with client teams on caching strategy (key design, TTLs, consistency, client timeouts) and feed fleet data into the team's roadmap.
With the support of your team’s tech lead and manager, you will break down larger projects into individual tasks, deliver them in multiple phases, and collaborate with others to ensure timely delivery of your work.
Support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs.
Contribute to a sense of community on your team by engaging in growth and development activities such as participation in the interview process.
2+ years of experience as a software engineer.
~ Experience designing, developing and launching backend systems and are proficient in one of Python or Kotlin.
~ Familiar with the building blocks of distributed systems, and the technologies like AWS, MySQL, Redis/Valkey, Terraform and Kubernetes.
~ Experience automating infrastructure operations with Terraform,



Kubernetes and Python, and prefer tested playbooks over manual runbooks.
~ You have mastered taking a simple problem or business scenario into a solution that interacts with multiple software components, and executing on it by writing explicit, easily understood, well tested and extensible code.
~ Equity Grade - Canada 5
Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by affirm holdings, inc. (CAN base pay range per year: $133,000 - $183,000 $CAD.
This remote role is open only to candidates residing in Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, or Saskatchewan.
Remote-first with flexibility built in
Affirm is proud to be a remote-first company. Some positions may occasionally require in-person work at an affirm office, and a few are office-based due to the nature of the work. Health coverage at no cost: we cover 100% of premiums for employees and their dependents.
Time off to recharge: flexible time off and generous holiday calendars help you rest when you need to.
We’re committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we’re happy to help.

📌 Software Engineer II, Backend (Online Storage) (Halifax Regional Municipality)
🏢 Affirm
📍 Halifax Regional Municipality