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Senior IT Engineer, Enterprise Systems

Justworks

Justworks

IT
Posted on Feb 14, 2026

Who We Are

At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset - our people.

We’re helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. If you’d like to work in a supportive, entrepreneurial environment, are interested in building something meaningful and having fun while doing it, we’d love to hear from you.

We're united by shared goals and shared motivations at Justworks. These are best summed up in our company values, which are reflected in our product and in our team.

Our Values

If this sounds like you, you’ll fit right in.

Department

Tech Operations

Who You Are

As a senior systems engineer, you possess extensive expertise in entrepreneurial, startup, or enterprise settings. You provide top-tier, "white-glove" support for stakeholders tailored to their specific needs. You excel in researching technical problems and solutions with a high level of professionalism.

In this role, you take charge of the technical design, planning, implementation, and performance tuning for critical enterprise application systems. While you are the primary architect and owner for our core collaboration stack, you are a versatile engineer capable of managing a broad and diverse ecosystem of tools. You lead by example as a technical expert and serve as a mentor to junior systems engineers.

Your Success Profile

What You Will Work On

  • Core Platform Architecture: Act as the primary architect and administrator for our core enterprise platforms: Atlassian suite (Jira & Confluence), Google Workspace, and Slack.
  • SaaS and AI Enablement: Lead the technical strategy for enterprise-wide SaaS adoption and optimization. You will drive the roadmap for enabling AI-native capabilities across our ecosystem (e.g., Slack AI, Atlassian AI) to streamline workflows, boost employee productivity, and increase organizational velocity.
  • Ecosystem Management: Administer, configure, and troubleshoot a diverse catalog of 30+ SaaS platforms. You will use SaaS Management Platforms (SMPs) to maintain visibility, optimize licenses, and ensure system health across the entire stack.
  • AI-Driven Velocity: Act as an early adopter and champion of AI tools to accelerate the transition of ideas into concepts and concepts into executed solutions.
  • Automation: Support in maintaining and improving user lifecycle workflows (onboarding/offboarding).
  • Audits & Optimization: Conduct regular audits of SaaS environments to identify improvements, optimize resource utilization, and enhance security posture.
  • Documentation: Develop and maintain "source of truth" documentation for supported applications and processes for both internal employees and IT staff.
  • Mentorship: Provide technical guidance to junior team members, fostering a culture of knowledge sharing and "bar-raising" performance.

How You Will Do Your Work

As a Senior IT Systems Engineer, how results are achieved is paramount for your success and ultimately result in our success as an organization. In this role, your foundational knowledge, skills, abilities and personal attributes are anchored in the following competencies:

Good judgment - the exercise of critical thinking, analyzing and assessing problems and implications, identifying patterns, making connections of underlying issues, understanding risks and developing mitigation strategies, and taking ownership of the outcome.

Resourcefulness - taking a can-do approach, even in the face of obstacles and constraints by assessing what’s in front of you and effectively and efficiently optimizing what you have, whether it's working on something new or thinking about how to do something better.

Teamwork and communication - putting our collective best together through documentation, collaboration, relationship-building, listening, empathy, recruiting, and evangelism.Influence and leadership - fostering a community of knowledge-sharing, collaboration, mentorship, and forward-thinking.

Skills and knowledge - the capacity to actively learn and apply specific domain knowledge, know-how, and best practices to continually enhance and improve.

In addition, all Justworkers focus on aligning their behaviors to our core values known as COGIS. It stands for:

  • Camaraderie - Day to day you can be seen working together toward a higher purpose. You like to have fun. You’re an active listener, treat people respectfully, and have a strong desire to know and help others.
  • Openness - Your default is to be open. You're willing to share information, understand other perspectives, and consider new possibilities. You’re curious, ask open questions, and are receptive to thoughts and feedback from others.
  • Grit - You demonstrate grit by having the courage to commit and persevere. You’re committed, earnest, and dive in to get the job done well with a positive attitude.
  • Integrity - Simply put, do what you say and say what you'll do. You’re honest and forthright, have a strong moral compass, and strive to match your words with your actions while leading by example.
  • Simplicity - Be like Einstein: “Everything should be made as simple as possible, but no simpler.”

Qualifications

  • Experience: Minimum of 5 years of professional IT Systems experience in a fast-paced environment supporting a hybrid/distributed workforce.
  • Subject Matter Expertise: Extensive, hands-on experience with the administration and architecture of Jira, Confluence, Google Workspace, and Slack.
  • SMP Proficiency: Ideal candidates will have experience using SaaS Management Platforms (e.g., Productiv, Lumos, Torii, etc.) to manage a wide catalog of tools.
  • AI Fluency: Demonstrated interest or experience in using AI tools to increase engineering velocity and automate manual thinking.
  • IAM: Proficiency in Okta is a significant plus to support IGA (identity governance and administration) and user lifecycle initiatives
  • Supportive Mindset: Experience supporting infrastructure and automation teams without needing to own those specific domains.
  • Versatility: Proven ability to manage and support a wide range of SaaS platforms (30+) beyond the core stack.
  • Adaptability: You learn fast, are not afraid of technical details, and are motivated to understand every aspect of the products you support.

The base wage range for this position based in our New York City Office is targeted at $127,000.00 to $139,700.00 per year.

Actual compensation is based on multiple factors that are unique to each candidate, including and not limited to skill set, level of relevant experience, and specific work location. Salary ranges for positions based in other locations may differ based on the cost of labor in that location.

For more information about Justworks’ Total Reward Philosophy, including all of the perks and benefits we are proud to offer our team members, please visit Total Rewards @ Justworks.

Diversity At Justworks

Justworks is committed to maintaining a workplace where diversity of identity, culture, and life experience is the norm and is celebrated authentically and respected consistently. Diversity in our work, our people, and our product drives creativity and innovation, entrepreneurial leadership and integrity, competitiveness, and collaboration throughout our business and in the market. We depend on our differences to make our team stronger, our workplace more dynamic, and our product accessible to all of our customers.

We’re proud to be an equal opportunity employer open to all qualified applicants regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital or familial status, disability, pregnancy, gender identity or expression, veteran status, genetic information, or any other legally protected status. Justworks is fully dedicated to providing necessary support to candidates with disabilities who may require reasonable accommodations. We also provide reasonable accommodations to employees based on their sincerely held religious beliefs, as well as for other covered reasons consistent with applicable federal, state, and local laws. If you're in need of a reasonable accommodation, please reach out to us at accommodations@justworks.com. Your comfort and success matter to us, and we're here to ensure an inclusive experience.

Our DEIB Report