Senior Systems Engineer

First Orion is evolving our core communications platform to meet fast-moving market demands and the needs of one of our largest priority clients. We're seeking aSenior Systems Engineer who can balance big-picture technical vision with hands-on execution. This role is perfect for someone who thrives on simplifying complexity, fostering collaboration across teams and serving as the trusted technical voice for both First Orion and our partners.

This isn't just about keeping systems running, it's about support and growing a platform at the heart of carrier communications. At First Orion, we value innovation, accountability, and impact. You'll have the autonomy to make bold decisions, the support of a collaborative team, and the opportunity to shape a platform that powers critical communications every day.

What you'll be doing :

• Define and evolve a pragmatic technical roadmap that delivers incremental, high-impact improvements.
• Deliver solutions to customer and internal feature requests.
• Anticipate platform limitations and mitigate them within budget / resource constraints.
• Turn complex challenges into simple, scalable solutions.
• Balance the best solution with the decision that solves the problem, makes the delivery date and fits with long-term platform goals.
• Identify organizational alignment gaps and resolve them effectively.
• Prepare and defend issues with Root Cause Analyses (RCAs) and technical solution plans.
• Act as a primary technical communicator with customers and vendors.
• Mentor and grow engineers, with a focus on knowledge transfer to junior teammates.
• Establish shared priorities, clear ownership, and accountability.
• Structure teams effectively, knowing when lean execution is best.
• Manage lifecycle times and drive end-to-end planning from the core platform to operational deployment.
• Ensure strong SDLC integration across product, development, ops, and support.
• Make tough technical decisions and take accountability for outcomes.
• Gain deep knowledge of T-Mobile's end-to-end architecture; partner with Operations, Tier3 support, and Development.
• Own vendor interface documentation.
• Lead test system flows, tooling, and capacity reporting.
• Oversee lab environments across (including those on customer premise).
• Own data / access security (retention policies, TMO network access, AWS data paths).
• Forecast hardware needs, manage budgets, and write vendor specifications.
• Act as the final escalation point (T3 / T4) for complex technical issues.
• Form hypotheses quickly and iterate, confident in being wrong before being right.
• Relentlessly drive issues to resolution.
• Balance smart delegation with stepping in when only you can solve it.
• Strong day-to-day fluency in Linux / bash.
• Earn and maintain the trust of TMO engineering and external partners.
• Back up customer-facing teams by answering hard technical questions.
• Deliver consistently on commitments with quality and timeliness.
• Take calculated risks that move FO forward.

What you'll need :

What success looks like :

Company Benefits :

Balancing the work-life flow is key to health and happiness! That is why we offer one of the most competitive packages in our industry with open PTO, company paid holidays, Flex Fridays and flexible work arrangements. We strongly value the health and wellness of our teammates and through our state-of-the-art fitness center we're helping our teammates reach their wellness goals while at work. Add on generous health and dental / vision options, retirement plans, learning and development programs, career path frameworks, tuition reimbursement, company options and bonus potential you have many ways to take advantage of a comprehensive benefits package that means the most to you!

Learn More About First Orion :

First Orion helps businesses generate more revenue, increase efficiency, and improve the customer experience by empowering them to brand their phone calls with their name, logo and reason for calling. We are the market leader in branded communications technology, and a trusted partner to Fortune 500 companies and the largest U.S. mobile carriers.

Disclosure :

First Orion is an Affirmative Action and Equal Opportunity Employer. This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Activities, duties, and responsibilities may change at any time with or without notice, based on the changing needs of our business.

This position is not eligible for employment-based immigration visa / status sponsorship . Employees are required to demonstrate proper work authorization as required by I-9 compliance.

First Orion is interested in every qualified candidate who is eligible to work in the United States. First Orion's immigration sponsorship policy is applied in a nondiscriminatory fashion regardless of race, gender, ethnic origin, or any other classification protected by law.