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Senior Software Engineer, New Products



Software Engineering
New York, NY, USA
Posted on Friday, May 3, 2024

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.

The International Org

The International organization is growing rapidly but there are some clear domains that we are looking to build teams around.

The Payroll team is focused on a service-oriented architecture that enables: ledgers, payments, tax calculations, money movement, and everything in between for a global customer base. A large part of the responsibilities will involve integrating and scaling internal and external payment systems.

The HRIS team is focused on delivering new tools for our customers to hire, manage, and pay their international employees. Since these experiences will serve an international customer base, this team will be a guiding force for how Justworks approaches different internationalization (i18n) strategies across the entire product portfolio.

Who You Are

As a Senior Fullstack Software Engineer on Justworks’ New Products/International team, you will have the opportunity to take a project team from “zero to one” by leveraging your aptitude for navigating ambiguity and your experience working within a service-oriented architecture. If you are someone who:

  • Has a founder’s mindset who enjoys building and scaling a team, setting standards, being a mentor
  • Places emphasis on a team finding the right answer ahead of any one person being the one who was right
  • Thinks in terms of outcomes rather than outputs
  • Avoids over-engineering solutions and appreciate how building software can be a means for learning, gaining insights, and ultimately solving problems that people actually have

What You Will Work On

  • Collaborate with a tight-knit, cross-functional team to find solutions to customer challenges
  • Take ownership of building flexible, test-driven software that minimizes tech debt and enables change
  • Support, monitor, and maintain integrations with industry leading third-party platforms
  • Shape API driven services that are secure, compliant, and highly auditable
  • Enable an experience that is fully internationalized and localized for a global customer base
  • Promote engineering excellence through technical leadership, knowledge-sharing and mentorship
  • Enhance our testing, monitoring and continuous deployment infrastructure
  • Keep extremely sensitive data compartmentalized and secure
  • Perform other related duties as assigned

How You Will Do Your Work

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 Justworkers focus on aligning their behaviors to our core values known as COGIS. You can read more about those values here.


  • 5+ years of professional hands-on software development experience
  • Strong object-oriented design and coding skills and solid understanding of data structures and algorithms
  • Proven experience architecting solutions for complicated systems
  • Experience working on early stage products and building new feature from scratch, using clean, organized, and scalable code
  • Experience supporting other engineers and acting as a “tech lead”
  • Experience working using Agile/Scrum methodology in a fast-paced environment
  • Experience in a high-growth environment working with deadlines and milestones
  • Experience working on software that enables money movement would be beneficial

Technologies Used

We are building a highly available and globally distributed Ruby on Rails API with Kubernetes on AWS. The front-end is built on React with TypeScript and GraphQL. Observability, monitoring, and metrics are managed through DataDog and Rollbar. Internal tooling is built with Retool.

The base wage range for this position based in our New York City Office is targeted at $167,500.00 to $205,000.00 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 and Our DEI Commitment