Systems Reliability Engineer (SRE)

Long-Term Stock Exchange (LTSE) is an innovative national securities exchange focused on promoting sustainable, long-term growth for companies. The Systems Reliability Engineer will ensure the reliability of LTSE’s cloud-native infrastructure and regulatory reporting workflows, while managing billing, security, and data systems.

Responsibilities:

• Assist the finance team with monthly billing workflow execution, ensuring accuracy, auditability, and adherence to regulatory/SEC requirements
• Help design and build automated reporting and billing pipelines using AWS services and Terraform/Terragrunt-managed infrastructure
• Create tickets for required changes, improvements, or patches, drive these items through completion
• Manage secure compute environments (e.g., restricted-access EC2 instances) used for billing and regulatory batch workflows
• Maintain documentation, runbooks, checklists, and archival processes for billing artifacts and audit requirements
• Proactively initiate conversations and escalate when anomalies, risks, or high-importance issues are detected
• Address cloud security findings and coordinate remediation, with a focus on daily Tenable findings and high/critical vulnerabilities
• Disposition, categorize, and document findings to maintain compliance and audit readiness
• Oversee vendor patching operations for data-center or platform-related vulnerabilities
• Track SLA expectations for remediation and ensure timely closure
• Proactively initiate discussions if severe risks or unusual patterns emerge
• Collaborate with engineering and BI/DS functions on infrastructure needs, data source integration, and pipeline enhancements
• Support proof-of-concept efforts, prototype new tooling, and assist with vendor evaluations
• Help manage AWS infrastructure, permissions, and resource provisioning needed for BI and analytical workloads
• Proactively raise observations or concerns related to data quality, pipeline stability, or analytical tooling
• Assist the team in addressing ongoing technical debt, including cleanup, patching, refactoring, and modernization
• Take ownership of repetitive tasks, deployments, documentation, and operational workflows to reduce team overhead
• Ensure all changes follow proper audit trails, checklists, and change-management processes
• Maintain high-quality documentation, runbooks, diagrams, engineering design specs, and operational logs
• Proactively highlight high-priority issues, gaps, or improvement opportunities
• Participate in on-call rotations, respond to incidents, perform first-level triage, and escalate when necessary
• Communicate clearly, promptly, and respectfully - especially in public Slack channels
• Coordinate with vendors (platform operators, network providers, tools vendors) to ensure timely resolution and SLA compliance

Requirements:

• Strong AWS experience, especially with data pipeline architectures
• Proficiency with Terraform/Terragrunt and GitHub workflows
• Expert scripting skills
• Familiarity with vulnerability management tools (Tenable or similar)
• Strong Linux fundamentals
• Ability to manage compliance-oriented, audit-driven workflows
• Strong communication and documentation habits
• Ability to triage issues independently and escalate appropriately
• Experience in data-driven systems, billing or financial reporting pipelines, or BI/DS infrastructure support
• Experience in regulated or compliance-heavy environments (finance, fintech, health, etc.)
• Prior vendor coordination or SLA-driven operational experience is a plus
• Demonstrated history of direct responsibility for, background or strong interest in financial markets is highly desirable
• Experience with Go (preferred) and Python (legacy)