About Mile Marker

We are a modern omnichannel agency uniquely connecting data, creative and media to accelerate results for growth marketers. Mile Marker is an agency where content fuels performance, media drives outcomes, and data underpins an engine that eliminates the gaps that slow down enterprise growth marketers. This unified growth engine feeds a learning system within Relay, our open-powered marketing stack, ensuring every impression, message and experience is built for a business outcome. Mile Marker’s client roster includes FreshPet, DoorDash, Spectrum, Webster Bank, TrueGreen, HelloFresh and Harry’s, among others.

We are a team of strategists, media experts, creatives, innovators and analysts. Over 100 Milers (our humans) strong with hybrid-offices in New York City and San Francisco.

For more information, go to www.milemarkeragency.com.

About the Role

Mile Marker is looking for a mid-level proofreader to join our creative services team. You'll proofread presentations, proposals and creative assets (e.g. email/CRM, direct mail, social ads, and landing pages) for a roster of clients, partnering closely with project managers, copywriters, designers, and account leads to ensure accuracy and brand consistency in all deliverables. This is a contract role with an expected commitment of 15-30 hours per week, with flexibility based on client workload.

What You'll Do

• Proofread creative and marketing materials across online and offline channels—including emails, direct mail, banner ads, and client/internal presentations—for grammar, spelling, punctuation, and consistency
• Verify copy accuracy against approved briefs, style guides, and brand voice guidelines, flagging discrepancies before final delivery
• Check formatting, layout, and legal/disclaimer requirements specific to each asset type (e.g., email subject lines, mailer specs, ad character limits)
• Collaborate with copywriters, designers, and account teams to resolve inconsistencies and incorporate revisions under tight deadlines
• Maintain a final quality-control checkpoint across multiple concurrent projects, ensuring error-free deliverables before client or internal handoff

What We're Looking For

Required

• 4+ years of proofreading experience in marketing or advertising
• Proven ability to proofread for email, direct mail, paid social, digital ads, and/or landing pages
• Expert command of English grammar, spelling, punctuation, syntax, and usage, with the judgment to distinguish standard conventions from intentional brand-specific style choices
• Working knowledge of common editorial style guides, with the ability to apply client-specific style guides when they differ
• Ability to proofread copy in context and identify visual or production errors, including missing copy, awkward line breaks, inconsistent formatting, spacing issues, and discrepancies between copy and design
• Track revisions carefully across rounds and verify that requested changes have been incorporated accurately without introducing new errors
• Experience proofreading regulated or compliance-sensitive marketing materials, including legal copy, disclaimers, offer language, and required disclosures
• Experience juggling multiple clients or brands at once
• Self-directed and deadline-driven; comfortable with a remote, freelance workflow
• Exceptional attention to detail

Preferred

• Agency or in-house creative team experience
• Proficiency in project management software (such as Teamwork or Asana)
• Experience with creative review tools like Figma or Ziflow

Engagement Details

• Contract, freelance — 15–30 hours per week, based on client volume.
• Remote.
• Reports to the Director, Creative Operations & Delivery.
• Compensation: hourly or project rate, commensurate with experience (details discussed during interview).
• Work samples will be requested during the interview process