Explore thousands of opportunities across Tech:NYC’s member network.


Senior Data Scientist, Marketing



Marketing & Communications, Data Science
New York, NY, USA
Posted on Tuesday, May 14, 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.

Who You Are

You’re an experienced data scientist with a curious mindset and an eye for simplifying complex problems. You’re practiced at framing data science problems and designing creative solutions that drive business impact, with hands-on experience in marketing applications. You’re excited to collaborate cross functionally and to communicate your findings to ensure your work drives business impact.

Justworks is looking for a Data Scientist to join our Data Services team. You’ll partner with Marketing, Business Operations, and Technology teams, in addition to other data scientists, to create a rich understanding of our ongoing marketing initiatives and inform marketing strategy going forward.

Your Success Profile

What You Will Work On

  • Use causal inference and predictive models to identify and unlock opportunities for marketing-led growth across the customer lifecycle (e.g. attribution modeling, customer segmentation)
  • Design and analyze experiments on our marketing campaigns to validate & optimize budgets across marketing channels, and to understand the impact of our initiatives on customer growth and retention
  • Build tools and frameworks to improve experimentation and measure incrementality of marketing efforts
  • Collaborate with data analysts and data scientists across our growth functions to analyze and optimize customer journeys
  • Partner closely with our Marketing function, Business Operations, and Technology teams to understand their goals and requirements
  • Independently own the prioritization, scoping, and delivery of data science initiatives that support marketing strategy & execution
  • Present and document key learnings and recommendations to teams in a manner that productively influences decisions.
  • Partner with the data engineering team to improve platform capabilities around data ingestion, data modeling, data quality, and insights generation
  • Performs other related duties as assigned

How You Will Do Your Work

In the Data Scientist role, 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.

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.”


  • Advanced degree, or global equivalent in Statistics, Economics, Machine Learning, Computer Science, Mathematics, or related fields
  • Minimum of 5 years of experience as a data scientist or analyst, with experience in generating insights & recommendations for growth or marketing applications
  • Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders
  • Strong business acumen and ability to translate analyses into actionable strategies
  • Proficiency in causal inference and experimentation
  • Track record of driving business impact through machine learning techniques in a professional setting
  • Proficient in at least one statistical programming language (Python or R)
  • Fluent in SQL
  • Familiarity with a cloud-based data stack (e.g. Snowflake, dbt)
  • Domain experience in Marketing or Adtech is preferred

The base wage range for this position based in our New York City Office is targeted at $167,500 to $184,250 per year.

LI-Hybrid #LI-AJ1

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