Senior Software Developer

CornerStone Technology Talent Services; Austin (TX); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Competitive pay with weekly direct deposit

Dedicated career support

High-impact projects

Job summary

A leading tech staffing firm is seeking a Senior Software Developer in Austin, TX. This on-site role focuses on strengthening cybersecurity operations using Microsoft Sentinel. Responsibilities include building detection playbooks, integrating with security tools, and creating analytics solutions. Ideal candidates will have a strong background in cloud-based security, scripting, and Azure technologies. Join a dynamic team dedicated to high-impact projects with competitive pay and career support.

Qualifications

• 2+ years in cloud-based security development, software engineering, or SIEM engineering.
• Hands-on experience with Microsoft Sentinel, SOAR, and UEBA.
• Strong knowledge of Azure-native technologies (Logic Apps, Functions, Event Hubs, Azure AD).
• Skilled in scripting/automation (PowerShell, Python) and advanced KQL.

Responsibilities

• Build and deploy Microsoft Sentinel SOAR playbooks using Azure Logic Apps.
• Integrate Sentinel with tools like EDR, IAM, firewalls, and ticketing systems.
• Create UEBA rules and ML-based detection logic.
• Develop microservices and automation scripts.

Skills

Microsoft Sentinel

Azure Logic Apps

Python

PowerShell

KQL

SIEM engineering

Job description

Direct message the job poster from CornerStone Technology Talent Services

Location: On-site in Austin, TX (Local Candidates Only)

Start Date: January 2026

Duration: Through August 2026 (Extensions Possible)

Schedule: Monday–Friday, 8 AM – 5 PM (some after‑hours support may be needed)

About Us:

At CornerStone Staffing’s Tech Talent Services (TTS), we connect top technical talent with organizations that value innovation and operational excellence. Our team ensures candidates aren’t just a resume fit—they’re ready to make an immediate impact on real‑world IT and cybersecurity challenges.

Role Overview:

We’re looking for a Senior Software Developer with strong Microsoft Sentinel experience to help strengthen and automate cybersecurity operations. This role focuses on building detection playbooks, behavior‑based analytics (UEBA), and custom integrations in a cloud‑first, Azure environment. You’ll work closely with security teams to detect and respond to threats in real time.

What You’ll Do:

• Build and deploy Microsoft Sentinel SOAR playbooks using Azure Logic Apps, Functions, ARM templates, and REST APIs
• Integrate Sentinel with tools like EDR, IAM, firewalls, and ticketing systems to automate threat response
• Create UEBA rules, ML‑based detection logic, and advanced KQL queries
• Design custom connectors, parsers, dashboards, and hunting queries aligned with MITRE ATT&CK
• Develop microservices and automation scripts using Python, PowerShell, or .NET
• Support Tier III incident analysis, performance tuning, and optimization
• Document workflows, architectures, and SOPs for deployments

What We’re Looking For:

• 2+ years in cloud‑based security development, software engineering, or SIEM engineering
• Hands‑on experience with Microsoft Sentinel, SOAR, and UEBA
• Strong knowledge of Azure‑native technologies (Logic Apps, Functions, Event Hubs, Azure AD)
• Skilled in scripting/automation (PowerShell, Python) and advanced KQL
• Familiarity with Zero Trust principles, NIST, and security operations workflows
• Strong communicator who can explain technical solutions to both IT and business audiences
• Ability to work on‑site full‑time in Austin, TX

Nice‑to‑Haves:

• Experience in regulated or public‑sector environments
• Prior integrations of Sentinel with common security tools
• Experience with Git‑based CI/CD pipelines or Infrastructure‑as‑Code

Why Join CornerStone TTS:

• Work on high‑impact public‑sector and commercial projects
• Dedicated career support and talent advocacy
• Competitive pay with weekly direct deposit
• We speak “tech” and understand what makes a contract worth taking

Ready to Make an Impact?

Apply today to connect with a recruiter who can walk you through the opportunity, team environment, and how your skills can drive mission‑critical outcomes.

CornerStone Tech Talent Services – Bringing top talent to mission‑critical innovation.

Seniority Level

• Mid‑Senior level

Employment Type

• Contract

Job Function

• Other

Industries

• Staffing and Recruiting