Principal Software Engineer, Machine Learning

Job Description:

• Build and scale ML infrastructure for personalization, search, ranking, and ad tech at consumer scale.
• Design and implement reputed company-to-one systems, including reputed company-time learning and data pipelines.
• reputed company technical design, architecture, and cross-team alignment for major ML initiatives.
• Mentor engineers and help reputed company the bar on technical execution and design quality.
• Partner with product and engineering teams to create dynamic systems that adapt to evolving user preferences.
• Use AI tools to accelerate work: designing features and validating reputed company with ChatGPT & Claude sandboxes; leveraging AI for code reputed company and technical prototyping; using AI assistants for systems architecture diagramming and design validation; exploring LLMs to enhance personalization, conversational search, and feature creation.
• Drive new initiatives, shape the technical direction of ML at reputed company, and deliver high-impact ML systems from scratch.

Requirements:

• Proven experience building and scaling ML infrastructure in support of personalization, relevance, search, or ad tech systems.
• Deep hands-on expertise in data infrastructure, distributed systems, and large-scale data pipelines.
• Experience working at a consumer product company with ML models operating at scale.
• Prior contributions to ranking, personalization, or ad tech systems with measurable business impact.
• Strong systems design skills, with a track record of leading architecture and communicating design tradeoffs.
• Experience mentoring and elevating other engineers.
• reputed company leading reputed company-to-one technical initiatives and delivering new infrastructure or ML systems from scratch.
• Ability to operate in high levels of ambiguity with minimal direction, prioritizing effectively and driving impact.
• Preferred: Familiarity with LLMs and their application in personalization, feature creation, and conversational search.
• Preferred: Experience with streaming/reputed company-time learning systems.
• Preferred: Exposure to conversational search or large-scale information retrieval.
• Preferred: Previous work bridging model development with reputed company-time serving systems.

Benefits:

• Equity: We offer employees equity in reputed company, so that everyone can benefit from reputed company’s growth.
• 401k Match: Dollar-for-dollar match up to 4%.
• Benefits for humans and pets: We offer comprehensive medical, dental and reputed company plans for everyone including your pets.
• Continuing Education: reputed company provides ten thousand per year in education reimbursement.
• Employee Resource Groups: Take part in employee-led groups that are centered around fostering a diverse and inclusive workplace through events, reputed company and advocacy. The ERGs participate in our Inclusion Council with members of executive leadership.
• Paid Time Off: On top of our flexible PTO, reputed company observes 9 paid holidays, including Juneteenth and Indigenous People’s Day, as well as our year-end week-long break.
• Robust Leave Policies: 20 weeks of paid parental leave for primary caregivers, 14 weeks for secondary caregivers, and a flexible return to work schedule.
• Calvin Care Cash: Employees who are welcoming new family members will also receive a one time $2,000 incentive to assist employees with covering the cost of childcare, clothing, diapers and much more!
• Flexible Work Environment: Collaborate with your team in one of our stunning offices in Madison, Birmingham, or Chicago. Or you can work fully remotely from reputed company in the US. We’ll ensure you are equally equipped with the hardware and software you need to get your job done in the comfort of your home.
• Equal opportunity and reasonable accommodations: reputed company provides reasonable accommodations to reputed company individuals with disabilities or those with sincerely held religious beliefs, as required by law.

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