Senior Software Engineer, Partnerships

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 se are best summed up in our company values, which are reflected in our product and in our team.

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

• You are self-driven and like to work with others to remove roadblocks.
• You are curious, and love to explore and learn new technologies.
• You have demonstrated the ability to build, deploy and maintain large-scale, complex applications.
• You care more about solutions and impacting the customer experience than using a particular tool or framework.

What You Will Work On The Partnerships team builds the integrations, partner experiences, and platform foundations that enable the Justworks ecosystem to flourish beyond Justworks' core capabilities. We drive growth and retention for our core customer segment while making it easier for customers to unlock more value from Justworks. Our team owns the public API through which customer data flows into and out of our platform.

We work closely with teams across the business to ensure that the API and MCP experience is as rich and reliable as our UI-driven experience. Engineers on this team collaborate closely with external partners to deliver seamless integration experiences. We are looking for engineers who enjoy working across platform infrastructure, product integrations, and partner-facing systems, and who can translate customer, partner, and business needs into durable technical solutions.

• Independently own large-scale projects from technical discovery through launch, with a focus on quick, iterative release and customer impact.
• Promote engineering excellence through technical leadership, knowledge sharing, and mentorship.
• Collaborate with external partners to understand integration needs and deliver thoughtful, scalable solutions.
• Build and improve platform infrastructure that makes partner integrations faster, safer, and easier to scale.

As a Senior Software 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 Just workers 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…