Lead Machine Learning Scientist at The Knot Worldwide

WHAT WE DO MATTERS:

At The Knot Worldwide, we champion celebration - and that starts with celebrating our people. Our employees are passionate dreamers, thoughtful doers, and lifelong learners who power meaningful moments for millions around the world. We’re united by authentic connection, shared purpose, and a deep commitment to the global community we serve. Here, flexibility and belonging go hand in hand with high performance. Driven by our core values, we believe the best ideas come from empowered teams: those who consistently collaborate with intention to design solutions, spark ideas, and drive impact. Our people are at the heart of our success.

WHAT WE DO MATTERS:

At The Knot Worldwide, we champion celebration - and that starts with celebrating our people. Our employees are passionate dreamers, thoughtful doers, and lifelong learners who power meaningful moments for millions around the world. We’re united by authentic connection, shared purpose, and a deep commitment to the global community we serve. Here, flexibility and belonging go hand in hand with high performance. We believe the best ideas come from empowered teams: those who consistently collaborate with intention to design solutions, spark ideas, and drive impact. We inspire, we build, and we celebrate. We dream big, love our users, hustle every day, and always do the right thing to win - together. Our people are at the heart of our success.

ABOUT THE ROLE AND THE TEAM:

The Machine Learning team at The Knot Worldwide builds the intelligence that powers search, recommendations, personalization, and AI-assisted experiences across our global wedding marketplace. We’re a fast-moving, collaborative, and highly technical team that partners deeply with product, engineering, and design to deliver ML-powered features that drive real user and business impact.

The strategic and technically rigorous Lead Machine Learning Scientist (you!) will help define the future of our AI capabilities and build models that connect couples to the right vendors, content, and products at the right time. You will lead the design, development, and deployment of machine learning solutions across ranking, recommendations, semantic search, and generative AI, driving measurable improvements in conversion, engagement, and marketplace value. You will work closely alongside engineering, product, and data partners, and report to the Director of Machine Learning.

RESPONSIBILITIES:

Lead the development of production-grade ML models across personalization, search ranking, NLP, and computer vision to power key user and vendor experiences.
Collaborate with engineering and product to scope and ship end-to-end solutions that are scalable, reliable, and impactful.
Mentor and guide a team of ML scientists, promoting best practices in experimentation, model architecture, and code quality.
Drive adoption of MLOps principles for model deployment, versioning, observability, and monitoring.
Partner with stakeholders to identify high-impact ML opportunities aligned with business goals, and clearly communicate trade-offs and results.
Stay current on advancements in AI and apply new techniques to enhance the performance and efficiency of our models.

SUCCESSFUL CANDIDATES HAVE:

7+ years of hands-on experience in data science or ML roles, including at least 2 years in a technical leadership capacity.
Advanced degree (PhD or Master’s) in Computer Science, Machine Learning, or a related technical field.
Expertise in ranking, recommendation systems, deep learning, NLP, or computer vision, ideally in a consumer tech or marketplace context.
Proficiency in Python and ML frameworks such as PyTorch or TensorFlow.
Experience building and deploying models to production using MLOps tools and cloud-based infrastructure.
Strong communication skills and ability to drive projects across cross-functional teams.

WORK MODEL:

This role is Together@TKWW-eligible and based near our NYC office hub. You’ll be expected to work in the office two days a week as part of our hybrid work model.

#LI-Hybrid

At The Knot Worldwide, we believe you are more than a resume and invite you to go for it, take the leap of faith, and apply for this job. Together, we have an incredible opportunity to make it even easier for our customers to plan life’s most meaningful moments and for our small business owners to grow and scale. We would love to have you with us on our journey.

WHAT WE LOVE ABOUT YOU:

Commit to our customers: You act as one team on behalf of our customers. You lead with head and heart, and build what matters for life's most meaningful moments.
Raise the bar: You define "great" and work backwards. You don't just accept how it's been done, but boldly define how it should be. You are unafraid to innovate, learn, and keep moving forward toward our shared vision.
Be all in: You believe in our mission and take ownership of your work. You debate openly to reach the best outcomes, speaking with clarity and care, embracing diverse perspectives, then commit fully.
Celebrate impact: You measure success by the outcomes you create. You hold yourself accountable to delivering value, while recognizing progress and the lessons learned along the way. You love to win, together.

WHAT YOU LOVE ABOUT US:

We believe in a wide range of holistic offerings to support our employees so that they can live our values day in and day out. From mental wellbeing, physical health and financial planning, to engaging perks and discounts, we are in the business of celebrating and supporting the Moments that Matter, both in and out of the office.. We offer flexible vacation, generous parental leave, and prioritize initiatives that support the growth, development, and happiness of our people.

Together@TKWW is our approach to hybrid work. It’s designed to support how we work best: combining the flexibility we value with meaningful opportunities to connect in person. Whether a role is Together@TKWW-eligible or not, we believe in purposeful moments to come together, build strong relationships, and drive bold ideas forward.

For Together@TKWW-eligible roles, this includes regular in-office time to foster collaboration and connection.
For roles not eligible for in-office expectations, we support connection through virtual collaboration and intentional gatherings.

To facilitate in-person collaboration, we have office spaces in Barcelona, Spain; Delhi, India; Galway, Ireland; London, England; New York, NY; and Washington, D.C.

US Notice: The Knot Worldwide provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, or disability. In addition to federal law requirements, The Knot Worldwide complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. The Knot Worldwide expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

Privacy Notice: The Knot Worldwide (TKWW) processes your personal data to evaluate your application, based on the legal ground of taking steps prior to entering into a potential employment contract. Only the data strictly necessary for this purpose is collected. In some cases, your data may also be processed based on TKWW’s legitimate interests (e.g., to improve recruitment practices or manage candidate pools), to which you can object at any time. You have the right to access, rectify, or delete your data, and to object to certain uses. To learn more about your rights, please consult our The Knot Worldwide (TKWW) processes your personal data to evaluate your application, based on the legal ground of taking steps prior to entering into a potential employment contract. Only the data strictly necessary for this purpose is collected. In some cases, your data may also be processed based on TKWW’s legitimate interests (e.g., to improve recruitment practices or manage candidate pools), to which you can object at any time. You have the right to access, rectify, or delete your data, and to object to certain uses. To learn more about your rights, please consult our Privacy Policy. If you wish to file a complaint, you may contact the competent data protection authority. If you wish to file a complaint, you may contact the competent data protection authority.

Lead Machine Learning Scientist

Related Jobs

Mid Data Ops Analyst

Senior Machine Learning Engineer, Search & Recommendations Ranking

Senior Machine Learning Engineer

Data Scientist, All Levels

Product Analytics (Strategy and Analytics) – Category Growth & Shopping Marketplace, Core Experience

Senior Commercial Strategy & Operations Analyst

Senior Business Systems and Data Analyst

Scientist, II, Analytical Chemistry

Sr. Salesforce Consultant, Service Cloud Voice

Lead Data Analyst

Browse Similar Jobs