Full Stack AI Software Engineer I

Job Description

Job Description

About the Role
We're building the next generation of email marketing tools at Validity. AI is central to how we build – we develop with agents daily – and to what we build, shipping AI-powered features that help our customers succeed.

We're looking for a Full Stack AI Software Engineer I with exceptional fundamentals, sharp instincts, and the drive to build production software from day one.

This is a hybrid office-based position that requires in-person presence in the team's Boston, MA (Financial District) office location on Tuesdays, Wednesdays, and Thursdays of each week. This role is not eligible for remote work or relocation. 

Team Dynamic
We move fast, communicate directly, and debate ideas openly. The best idea wins regardless of who it comes from. We bias toward action – ship, learn, iterate.

Position Duties and Responsibilities

• Build and ship full-stack features
• Work with agentic AI systems – both using AI tools in your workflow and building AI-powered features
• Work across multiple projects simultaneously, using agents to maintain velocity across concurrent workstreams
• Perform rigorous code review – especially of AI-generated code – ensuring production-grade quality, security, and systems design
• Learn rapidly in a fast-paced environment alongside senior engineers
• Work closely with product managers, shipping, learning, and iterating

Required Experience, Skills, and Education

• Bachelor's degree in computer science from a top 30 CS program
• 4.0 GPA
• At least one software engineering internship at a technology company, or a portfolio of demonstrable projects showing engineering depth
• Proficiency in React, TypeScript, and SQL
• Demonstrated ability to use AI coding tools effectively – you already build with agents
• Strong code review instincts – you read code critically and catch issues others miss
• Excellent fundamentals in systems design and data structures
• Ability to work a hybrid office-based position (Tuesdays, Wednesdays, and Thursdays) in the team's Boston, MA (Financial District) office.

Who You Are

• A doer – hands-on with code and experiments daily
• A quality gate – you care about getting it right, and you know AI-generated code needs sharp review
• Fast and intelligent – you learn fast, make smart decisions quickly, and iterate
• An AI-native builder – agentic tools are part of how you work, not an afterthought
• Collaborative – you thrive on code review and learning from others
• Hard-working and motivated – you put in the effort and take pride in what you ship

Preferred Experience, Skills, and Education

• Contributions to open-source projects
• Experience building and deploying web applications
• Familiarity with agentic AI frameworks or LLM APIs
• Personal projects that demonstrate initiative and technical depth

Base salary range $100,000 - $120,000, plus benefits, bonus opportunities and stock options. Final salary may vary depending on skills, location, and/or experience. 

#LI-Hybrid

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, and 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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