Social Media Marketing Manager | Content & Creative

About the role

Coresium is a Mumbai-based sales and marketing agency. We are looking for a hands-on social media marketer who combines content planning with creative execution and can keep client work moving from idea to publication.

What you will do

• Plan and maintain content calendars tailored to each client’s audience, brand and business priorities.
• Develop campaign ideas, write or refine captions and briefs, and create social posts and simple short-form content yourself.
• Work closely with graphic designers, video editors and the wider creative team to maintain a coherent output and dependable delivery.
• Manage approvals, feedback, publishing schedules and routine client communication across multiple accounts.
• Research and coordinate influencer campaigns, including creator suitability, briefs, deliverables and reporting.
• Support campaigns and content for existing clients and public-sector contracts, following the agreed language, accessibility and approval requirements.
• Review content performance and audience responses, draw practical conclusions and improve the next calendar.
• Explore relevant creative tools, platform features and AI workflows, and share useful insights with the team.

What we are looking for

• Prior hands-on social media and creative/content experience, ideally around one year or more. Strong candidates with six months of relevant work are welcome.
• A portfolio showing actual posts, calendars, captions, campaigns or account work, with your contribution clearly explained.
• Clear writing, visual judgement, client coordination and consistent follow-through.
• Practical ability with tools such as Canva, scheduling platforms, spreadsheets and basic video editors; confidence working with designers on more complex production.
• Ability to work independently in a remote team and keep several client priorities organised.
• Influencer campaign or public-sector experience is useful. Paid advertising knowledge is an additional skill; the core responsibility is content and social media management.

Arrangement and pay

Full-time, remote across India. Salary: ₹25,000-₹40,000 per month, depending on relevant experience, portfolio and scope. Working arrangements will be discussed during the introductory call.

To apply

Apply on Wellfound and email your résumé and accessible portfolio/account links to admin@coresium.com, with “Social Media Marketing Manager” in the subject. Share 2-3 examples, explain what you personally planned or created, and include your availability and expected monthly salary. Please do not share confidential client credentials.