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About the Role

We are looking for a Principal AI Engineer who moves fast, experiments relentlessly, and ships agentic AI systems that solve real problems.

This is a hybrid, office-based position which requires you to work 3 days per week (Tuesdays, Wednesdays and Thursdays) in our Boston, MA (Financial District) Headquarters.

Team Dynamic

Who you are:

+ A doer: you're hands-on with code and you experiment daily

+ Fast and intelligent: you make smart decisions quickly and iterate

+ Experimentation-obsessed: you validate through building

+ Comfortable with ambiguity: you forge ahead when the path isn't clear

Position Duties and Responsibilities

+ Build and deploy agentic AI systems

+ Perform research spikes to evaluate scope and feasibility

+ Help set technical direction through working prototypes and rapid experimentation

+ Create evaluation datasets, labeling workflows, and instrumentation to improve agent performance

+ Move from idea to production-ready implementation at speed

Required Experience, Skills, and Education

+ 10+ years of engineering experience shipping impactful products

+ 2+ years building agentic AI systems

+ Strong product sense and you have an understanding on how to integrate agents into user experiences

+ Experience with agentic frameworks. We use Mastra AI, so either experience with or a willingness to learn Typescript

+ Bias toward action and rapid decision-making

+ Ability to work 3 days per week (Tuesdays, Wednesdays and Thursdays) to work on-site in Boston, MA.

Preferred Experience, Skills, and Education

+ ML engineering or data science background

+ Experience with evaluation frameworks, observability tools, or synthetic data generation

+ History of 0-to-1 projects

Salary range $200,000 - $250,000 plus benefits, bonus opportunities and stock options. Final salary may vary depending on skills, location, and/or experience.

About Validity

For over 20 years, tens of thousands of organizations across the world have relied on Validity solutions to target, contact, engage, and retain customers – using trustworthy data as a key advantage. Validity’s flagship products – Everest, DemandTools, BriteVerify, a nd GridBuddy Connect – are all highly rated, #1 solutions for sales and marketing professionals. These solutions deliver smarter email campaigns, more qualified leads, more productive sales, and ultimately faster growth.

Validity is a truly unique company - massive revenue growth, top-tier investors, 5-star product ratings, proven ability to acquire and integrate top tech companies and welcome them into the Validity family, a winning culture, and a work environment that fosters hard work, trust, and fun.

Headquartered in Boston, Validity has offices in Denver, London, Sao Paulo, and Sydney. For more information, connect with us on LinkedIn, Instagram, and Twitter.

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Validity is proud to be an equal opportunity employer. We are committed to providing equal employment opportunities to all employees and applicants for employment regardless of actual or perceived race, color, ancestry, national origin, citizenship, religion or creed, age, physical or mental disability, medical condition, AIDs/HIV status, genetic information, military and veteran status, sex, parental status (including pregnancy and pregnancy-related conditions, childbirth, post childbirth, nursing mother, parent of a young child and parent of a foster child), gender (including gender identity and expression), sexual orientation, marital status (including registered domestic partner status), or any other characteristic protected by applicable federal, state, or local law.

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