Senior Application Support Engineer

Kestra Holdings•Austin, TX

About The Position

Kestra does not provide immigration sponsorship, including H‑1B visa sponsorship or PERM‑based employment authorization. Candidates must be legally authorized to work in the United States without the need for current or future employer-sponsored immigration support. Lead with Purpose. Partner with Impact. Kestra is seeking a highly skilled and proactive Senior L2 Application Support Engineer to join our Application Support & Reliability team. In this pivotal role, you will leverage deep technical expertise, strong analytical capabilities, and strategic insight to ensure the stability, performance, and reliability of Kestra’s mission‑critical applications. You will lead complex investigations, mentor teammates, influence best practices, and partner closely with engineering, infrastructure, and business stakeholders to deliver exceptional service.

Requirements

5-10 years of experience in application support, technical support, DevOps, or software engineering, with a proven track record of leading complex investigations and driving improvements.
Bachelor’s degree in computer science, Information Technology, Information Systems, or equivalent practical experience.
Demonstrated success supporting distributed applications in Azure or hybrid cloud environments.
Deep expertise troubleshooting .NET and JavaScript/TypeScript applications running in Azure.
Strong proficiency with Azure Monitor, Log Analytics, and Kusto/KQL.
Advanced SQL skills and experience with relational (SQL Server) and NoSQL (Cosmos DB) databases.
Strong understanding of web application architecture, RESTful APIs, and cloud-native patterns.
Hands-on experience with Azure services: App Service, Functions, Storage, Application Insights, Container Apps, Service Bus, Data Factory, and related components.
Familiarity with Git workflows, CI/CD pipelines (Azure DevOps or GitHub Actions), and modern DevOps practices.
Ability to translate complex technical findings into clear, actionable communication for diverse audiences.
Recognized as a subject‑matter expert; sought out for guidance on complex support and reliability challenges.
Mentor colleagues, elevating team capability and fostering a culture of continuous learning.
Anticipates problems, develops preemptive solutions, and evaluates long‑term impacts.
Navigates complex interpersonal situations with strong communication and collaboration skills.
Demonstrates ownership, accountability, and the ability to “Make it Happen” with minimal oversight.

Nice To Haves

Experience with scripting (PowerShell, Bash) for automation.
Exposure to C#/.NET, React/TypeScript, or legacy systems (Angular, .NET Framework 4.x).
Knowledge of networking fundamentals (DNS, VNETs, App Gateway, Front Door, CDN).
Familiarity with OAuth/OIDC SSO flows and third‑party integrations.
Experience with ITIL or similar service management frameworks.
Background supporting applications in financial services or other regulated industries.

Responsibilities

Serve as a senior technical resource for L2 support, independently triaging, diagnosing, and resolving the most complex incidents across Kestra’s custom and third‑party applications including web, API, and data services built on Azure App Service, Functions, Container Apps, Service Bus, Azure SQL, Cosmos DB, Storage, and Data Factory.
Analyze telemetry, logs (IIS, application logs, Kusto/KQL), and performance metrics (Azure Application Insights, Monitoring) to uncover root causes, identify systemic patterns, and anticipate emerging issues.
Lead problem‑management efforts by identifying recurring issues, evaluating long‑term risks, and recommending strategic improvements to architecture, processes, monitoring, and tooling.
Collaborate with engineering squads and SREs to reproduce defects, provide detailed findings, and influence the prioritization of fixes and enhancements.
Take full ownership of support tickets from intake through resolution prioritizing effectively, communicating proactively with technical and non‑technical stakeholders, and ensuring timely closure aligned with SLAs.
Document technical designs, troubleshooting patterns, and knowledge artifacts to strengthen team capability and accelerate future resolution.
Mentor junior and mid‑level support engineers, guiding them through complex investigations, best practices, and strategic thinking.
Act as a go-to resource for cross-team collaboration, bridging communication between support, engineering, infrastructure, and security teams.
Support integration troubleshooting for third-party APIs, SSO (OAuth/OIDC), and file transfer processes.
Proactively communicate updates, risks, and recommendations to stakeholders.
Uphold Kestra’s core values Make it Happen, One Team, Serve in every interaction and deliverable.
Provide periodic off‑hours or on-call support as part of a shared rotation.