Senior Software Engineer - APEX

Ready to be a Titan?

Over 50,000 people depend on ServiceTitan’s software to run their daily business operations. You will be a crucial part of the APEX Engineering team, responsible for the technical evolution of our product, platform, and tooling ecosystem. We are a rapidly growing, reliability-driven organization passionate about automation, engineering productivity, and modern technology.

We are looking for a technically capable, forward-looking engineer who can balance rapid iteration with long-term strategic thinking. In this role, you won't just be building software; you will be pioneering AI innovation, building platforms that ensure Trust in AI, and spearheading our performance engineering initiatives. If you are comfortable with ambiguity, love solving complex problems on the Microsoft .NET platform, and want to build best-in-class tools adopted across the entire company, you might find your perfect fit here.

What you’ll do:

As a Senior Software Engineer in APEX, you will own critical tooling and strategy from the local machine through to production, providing observability and fostering a quality mindset across the board. Expect a roughly 70% development and 30% architecture/mentorship/requirements split.

• Pioneer AI Innovation & Trust: Drive the integration of AI within our engineering tooling and product features. You will build transparent, reliable systems that champion "Trust using AI," ensuring our automated platforms are both cutting-edge and deeply secure.

• Build the Performance Platform: Architect, develop, and scale our performance testing platform from the ground up. You will define technical SLAs, build out capacity planning tools, and establish comprehensive production performance monitoring to guarantee system reliability at scale.

• Architect & Implement: Design and implement user-facing features and shared services end-to-end, working closely with product managers, designers, and architects to guarantee thorough system-level checkpoints.

• Evolve Test Productivity: Build, improve, and speed up testing frameworks, libraries, and shared services. Enable engineering teams to self-service across internal tooling, public cloud (Azure/AWS), and Kubernetes.

• Evaluate & Mentor: Assess third-party tooling, educate peers on best practices, and mentor engineers to elevate the team's overall velocity and success.

What you’ll bring:

We need someone who empathizes with our users and champions their experience through a data-driven approach.

• Experience: 8+ years of hands-on software development experience, with at least 3+ years specifically focused on building tooling, shared services, or performance platforms for engineering teams.

• Core Technical Mastery: Expert-level knowledge of the Microsoft .NET technology stack (C#, ASP.NET MVC, Web APIs) and SQL databases. Familiarity with Object-Oriented Programming, Python, and front-end frameworks (HTML5, JavaScript, React).

• Performance Engineering Deep-Dive: Proven ability to build horizontally scalable test services. Deep expertise in performance testing, load generation, defining system SLAs, and utilizing production observability/monitoring tools.

• AI Acumen: Experience building, testing, or integrating AI-driven tools, with a strong understanding of how to build reliable, trustworthy guardrails around AI implementations.

• Cloud & DevOps: Hands-on experience with public cloud infrastructure (Azure/AWS), containerization (Kubernetes/Docker), and CI/CD tools (TeamCity, Jenkins, CircleCI, Git).

• Quality Mindset: Deep familiarity with the Test Pyramid, Agile Test Quadrants, and creating test data across complex environments.

• Education: B.S., M.S., or Ph.D. in Computer Science, Physics, Engineering, or a related technical field.

Be Human With Us:
Being human isn’t about checking every box on a list. It’s about the experiences we have, people we meet, and the perspectives we share. So, if you have the skills but are hesitant to apply because of your background, apply anyway. We need amazing people like you to help us challenge the conventional and think differently about the problems that we’re solving. We’re in this together. Come be human, with us. 

Use of AI Technology:

We use technology, including automated and AI-assisted tools, to support certain aspects of our recruitment process. These tools are designed to improve efficiency and enhance the candidate experience. AI tools are not used to make hiring decisions; all hiring decisions are made by our hiring teams.

What We Offer:

When you join our team, you’re not just accepting a job. You’re making a career move. Here’s how we’ll support you in doing some of the most impactful work of your career:

• Flextime, recognition, and support for autonomous work: Flexible time off with ample learning and development opportunities to continue growing your career. We offer a comprehensive onboarding program, leadership training for Titans at all levels, and other programs and events. Great work is rewarded through Bonusly, peer-nominated awards, and more.
• Holistic health and wellness benefits: Company-paid medical, dental, and vision (with 100% employer paid options and 90% coverage for dependents), FSA and HSA, 401k match, and telehealth options including memberships to One Medical.
• Support for Titans at all stages of life: Parental leave and support, up to $20k in fertility services (i.e. IUI and IVF), surrogacy, and adoption reimbursement, on demand maternity support through Maven Maternity, free breast milk shipping through Maven Milk, pet insurance, legal advisory services, financial planning tools, and more.

At ServiceTitan, we celebrate individuality and uniqueness. We believe that the convergence of fresh perspectives and experiences from all walks of life is what makes our product and culture so great. We strongly encourage people from underrepresented groups to apply. We do not discriminate against employees based on race, color, religion, sex, national origin, gender identity or expression, age, disability, pregnancy (including childbirth, breastfeeding, or related medical condition), genetic information, protected military or veteran status, sexual orientation, or any other characteristic protected by applicable federal, state or local laws.

ServiceTitan is committed to fair and equitable compensation for all of our employees. We thoughtfully consider a wide range of factors when determining individual compensation, which may change over time. We comply with all applicable minimum wage laws. For candidates in the United States, the good faith salary ranges estimate for this role is Zone 1: $163,400 USD - $245,000 USD Applicable for: CA, CT, DC, MD, MA, NJ, NY, VA, and WA Zone 2: $152,600 USD - $229,000 USD Applicable for: All other US locations. International Compensation for candidates residing outside the United States will vary by location and will be discussed during the hiring process. Actual compensation within a range is determined by factors including relevant experience, skill set, qualifications, and performance. In addition to base salary, our total compensation package includes an annual bonus, equity, and a holistic suite of benefits.