Senior Email Marketing Developer

Aon; Fort Washington (Montgomery County); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

401(k) plan with employer contribution

Employee stock purchase plan

Medical, dental and vision insurance

Paid time off and holidays

Job summary

Aon is seeking a Senior Email Marketing Developer to drive email campaigns on Salesforce Marketing Cloud and Customer.io from our East Coast teams.

You will build responsive templates with HTML/CSS, implement personalization via Liquid and AMPScript, and run A/B tests to optimize performance while maintaining CAN-SPAM and privacy standards.

Qualifications

• 2–4 years of hands-on email marketing experience (agency or in-house).
• US-based position with native English writing and editing skills.
• Hands-on SFMC (Email Studio/Journey Builder) and Customer.io experience.
• Experience building and deploying campaigns with HTML/CSS and responsive templates.
• Familiarity with AMPscript, SQL, and AI-assisted personalization is a plus.

Responsibilities

• Build, schedule and deploy email campaigns and automated journeys in SFMC and Customer.io.
• Code responsive email templates using HTML/CSS and Stripo; create modules as needed.
• Personalize messages with Liquid (Customer.io) and AMPScript (SFMC) at scale.
• Collaborate with marketing managers on briefs, segmentation and cadences.
• Set up A/B tests and deliver actionable performance insights.
• Monitor deliverability, opens, clicks and conversions; optimize based on data.
• Explore AI-based capabilities for subject lines and content recommendations.
• Maintain a scalable library of templates, modules and documentation.

Skills

SFMC

Customer.io

HTML/CSS

Liquid

AMPScript

SQL

A/B testing

Email personalization

Education

Bachelor's degree or equivalent

Tools

Stripo

Job description

Aon is looking for a Senior Email Marketing Developer

This role involves working directly in Salesforce Marketing Cloud (SFMC) and Customer.io (c.io). It focuses on email creation, template building, personalization, and using intelligent tools to improve performance.

The ideal candidate lives on the East Coast.

Aon is in the business of better decisions

At Aon, we build decisions for the better to protect and enrich the lives of people around the world.

As an organization, we are united through trust as one inclusive team, and we are passionate about helping our colleagues and clients succeed.

What the day will look like:

• Build, schedule and deploy email campaigns and automated journeys in SFMC and Customer.io
• Build and code responsive email templates and modules using HTML/CSS, Stripo and platform-native editors
• Build visuals if required, such as top header images, icons, and other email design features
• Use Liquid code (Customer.io) and AMPScript (SFMC) to personalize messages at scale
• Partner with marketing managers on briefs, segmentation, cadence planning, and benchmark alignment
• Set up and manage A/B tests (subject lines, layouts, CTAs, send time, personalization) and deliver actionable insights
• Monitor and present performance metrics (deliverability, opens, clicks, conversions, unsubscribes, complaints) and optimize based on data
• Explore and pilot AI-based capabilities such as subject line generation, send-time optimization, and content recommendations
• Maintain a scalable library of templates, modules, and documentation
• Ensure all campaigns align with CAN-SPAM, CASL, GDPR, and Aon's internal privacy/security standards

Skills and experience that will lead to success:

• 2-4 years plus of hands-on email marketing experience (agency or in-house)
• US-based position, native English speaker with excellent writing and editing skills
• Hands-on experience with Salesforce Marketing Cloud (Email Studio and Journey Builder required); knowledge of AMPscript/SQL is advantageous
• Experience building and deploying campaigns in Customer.io, including liquid code for personalization and logic a plus
• Strong email development background with a portfolio of responsive email work
• Proficiency in HTML/CSS for email and understanding of cross-client rendering limitations
• Experience using Stripo or similar modular template tools
• Strong attention to detail, organizational skills and ability to manage multiple projects in a fast-paced environment
• Curiosity and enthusiasm for experimenting with AI tools to test, personalize and scale email communications

Education:

• Bachelor's degree or equivalent experience preferred, with years in the tech/marketing/design industry

For positions in San Francisco and Los Angeles, we will consider for employment qualified applicants with arrest and conviction record in accordance with local Fair Chance ordinances.

Nothing in this job description restricts management's right to assign or reassign duties and responsibilities to this job at any time.

The salary range for this position (intended for U.S. applicants) is $90,000 to $110,000 annually. The actual salary will vary based on applicant's education, experience, skills, and abilities, as well as internal equity and alignment with market data. The salary may also be adjusted based on applicant's geographic location.

This position is eligible to participate in one of Aon's annual incentive plans to receive an annual discretionary bonus in addition to base salary. The amount of any bonus varies and is subject to the terms and conditions of the applicable incentive plan.

Aon offers a comprehensive package of benefits for full-time and regular part-time colleagues, including, but not limited to:

A summary of all the benefits offered for this position:

• a 401(k) savings plan with employer contributions
• an employee stock purchase plan
• consideration for long‑term incentive awards at Aon's discretion
• medical, dental and vision insurance, various types of leaves of absence, paid time off, including 12 paid holidays throughout the calendar year, 15 days of paid vacation per year, paid sick leave as provided under state and local paid sick leave laws, short‑term disability and optional long‑term disability, health savings account, health care and dependent care reimbursement accounts,employee and dependent life insurance and supplemental life and AD&D insurance
• optional personal insurance policies, adoption assistance, tuition assistance, commuter benefits, and an employee assistance program that includes free counseling sessions. Eligibility for benefits is governed by the applicable plan documents and policies.