Staff Software Developer
Confirmed on the employer's own hiring board on Oct 3, 2026. First seen by Alion on Jun 17, 2026.
About eSentire
eSentire is on a mission to hunt, investigate and stop cyber threats before they become business disrupting events. We were founded on the premise that if you can't find a solution, you build it. And today, that means pioneering the future of AI-powered security. At eSentire, we're building a cutting-edge AI Security Operations Platform that will amplify human expertise, not replace it, creating a workplace where innovation meets impact.
Our culture is based on transparency, teamwork, and continuous innovation, where your ideas can shape how AI and human intelligence work together to outsmart cyber adversaries. As the authority in Managed Detection and Response, we protect the critical data and applications of 2000+ organizations in 80+ countries, across 35 industries—and we're looking for forward-thinking talent to help us define what AI-first security, human-backed trust means for the industry.
About the Position:
We are looking for a Staff Software Developer to join our infrastructure team. In this role, you will design, build, and maintain the AWS cloud infrastructure that underpins our products and services. You will work primarily in Terraform, with supporting work in shell and either Python or Go, and will be expected to operate independently on complex infrastructure problems.
Responsibilities:
Design, build, and maintain production AWS infrastructure using Terraform, following infrastructure-as-code best practices.
Develop and maintain reusable Terraform modules, and establish standards for module structure, state management, and version control.
Build and maintain automation tooling using shell scripting and either Python or Go.
Operate, monitor, and troubleshoot AWS services across compute, networking, storage, identity, and security domains.
Improve the reliability, scalability, security, and cost-efficiency of existing infrastructure.
Partner with software engineering teams to support deployments, CI/CD pipelines, and developer workflows on AWS.
Participate in code review, technical design discussions, and incident response.
Document architecture decisions, runbooks, and operational procedures
Requirements:
Extensive professional experience working with AWS across a broad range of services (e.g. VPC, IAM, EC2, ECS/EKS, Lambda, S3, RDS, CloudWatch).
Strong hands-on experience building and maintaining production infrastructure with Terraform.
Proficiency in shell scripting (Bash or similar).
Proficiency in Python or Go.
Solid understanding of networking, security, and identity concepts in a cloud environment.
Experience with CI/CD pipelines and version control workflows (Git).
Ability to work independently, lead technical efforts, and mentor other engineers.
Located in Canada and eligible to work in Canada.
This posting is for an existing vacancy
Work Location
If the successful candidate is located within 50 km of our Waterloo, Ontario office, this role will follow a hybrid schedule: work from home on Mondays and Fridays and work onsite Tuesday through Thursday. Candidates residing more than 50 km from the office will work fully remote.
Compensation Range
The expected base salary range for this role is $150,000-$170,000 CAD. This range is for the primary location for which the job is posted. Actual compensation may vary depending on location and job-related factors such as qualifications, experience, knowledge, skills, and internal equity.
Our Culture and Values
We celebrate diversity, operating with mutual respect and consideration, in an environment that fosters inclusivity for all. We believe that a variety of perspectives, backgrounds, and experiences make us stronger – if you’re enthusiastic about this opportunity but don’t meet every qualification, we encourage you to apply anyway. It takes a diverse set of thoughts, cultures, backgrounds, and perspectives to be a true market leader.
Total Rewards
We believe in rewarding performance and providing comprehensive benefits tailored to support your well-being. Our package includes:
Competitive benefit program
Paid parental leave
Matching RRSP program
Competitive employee referral bonus
AccommodationIf you have any accessibility requirements during the recruitment process, please reach out to our HR team at [email protected] and any accommodation needs will be addressed upon request. Your talents and unique perspectives are valued, and we look forward to the opportunity to work together to build a more inclusive future.
It's our mission at eSentire to protect our customers 24/7/365 and we extend this conviction to job seekers. During the application and interview process, eSentire will communicate with you from one of our corporate "@esentire.com" email addresses, never from a public email address.