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Social Media Manager

About Gelesis

Gelesis is developing a novel hydrogel platform technology to treat overweight and obesity and chronic diseases related to the GI pathway. Gelesis’ proprietary approach is designed to act mechanically in the GI pathway to potentially alter the course of certain chronic diseases. In April 2019, Gelesis received FDA clearance for its lead product candidate, Plenity™, as an aid for weight management in overweight and obese adults with a Body Mass Index (BMI) of 25-40 kg/m2, when used in conjunction with diet and exercise. Plenity is currently available in limited supply in the U.S. Additionally, Gelesis is developing its second investigational candidate, Gelesis200, a hydrogel optimized for weight loss and glycemic control in patients with type 2 diabetes and prediabetes. Novel hydrogel mechanotherapeutics based on the Gelesis platform technology are also being advanced in other GI inflammatory conditions, such as non-alcoholic steatohepatitis (NASH) and Chronic Idiopathic Constipation (CIC).

Gelesis was also named one of Fast Company’s Most Innovative Companies for 2020.

The Gelesis executive and advisory team includes some of the world’s leading experts in obesity, materials science, chronic disease research, and commercialization. Gelesis was co-founded by PureTech Health (LSE: PRTC). For more information, visit or connect with us on Twitter @GelesisInc.

Who are we looking for?

We are seeking an experienced Social Media Manager to join our growing organization. In this position, you will manage social media communications for and around Plenity: developing content, managing approvals and implementation, and moderating conversations both in the public space as well as in our private community to promote brand continuity and engagement.

You should be a ‘people person’ with great customer service skills, the ability to manage multiple work streams at once, experience working with both internal and external stakeholders at all levels, and the ability to moderate online and offline conversations with our community.  This position will be a key player in helping us grow Plenity’s social presence and positive sentiment as well as in nurturing the private member community.  Ultimately, you should be able to act as the voice of the Plenity brand and lead all social communications.

This position will report to the Director of Brand Marketing. The successful candidate will receive an industry-competitive compensation package that consists of base salary and bonus, a flexible benefit plan including medical/dental/vision/life insurance, long-term disability, Employee Assistance Program, appropriate vacation time, and ability to participate in the employee stock purchase plan.

Key Responsibilities:

  • Manage all Plenity-brand social media channels and conversations, including public Facebook and Instagram accounts
  • Grow and manage the Private member community
  • Lead Plenity social content approach and creation of content for all social media channels including Plenity-related content on corporate social, working closely with external creative teams and 3rd party content providers
  • Lead all internal reviews required for social communications in partnership with external agencies and internal teams
  • Provide strategic perspective on what’s working/not working in social through analysis of metrics and trends, making recommendations and driving the process to enhance our overall social media strategy

The ideal candidate will:

  • Possess a strong work ethic supported by excellent organizational and time-management skills, demonstrating the ability to work independently with competing priorities and a high level of detail
  • Be a dynamic team-player with an entrepreneurial spirit who embraces a growing, start-up environment
  • Show strong ability from strategy through execution, being able to conceptualize, build out, and present new ideas, then building support for them and driving through execution
  • Have the ability to identify, track, and interpret relevant customer engagement metrics
  • Demonstrate excellent written and verbal communication skills
  • Have a strategic understanding of all social media channels, including Facebook, Instagram, Twitter, YouTube, Pinterest
  • Be a strong fit with the following characteristics:
    • Passionate: about customer satisfaction, brand building, and social media – you are passionate about and highly active on social media, with a solid eye for detail and good design taste
    • Innovative: experience challenging the status quo and finding novel solutions to problems
    • Results-oriented: able to focus on what is truly important, manage tight timelines, and deliver results
    • Forward-thinking: able to prepare for consumers’ expectations two to five years down the road – you have an eye for new opportunities to maximize our impact as a brand on social media
    • Intellectually agile: demonstrated ability to adapt own thinking to new insights and other ways of thinking as well as to adjust to new needs and changes in direction
    • Self-starter: able to both identify problems and propose solutions to them as well as take direction and communicate efficiently with a small, fast-paced team


Required Qualifications + Experience:

  • Bachelor’s degree in marketing, communications, or other relevant field
  • 7-10 years of solid media work experience (4-7 years in social media and community management)
  • Hands on experience managing social media communications for a growing brand; previous experience building or advancing a company’s social media presence is highly preferred
  • Proven track record as a community manager that includes launching community initiatives (e.g. building an online forum, moderating discussions

Gelesis is an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical​​​ condition, pregnancy, genetic information, gender, sexual orientation, veteran status, a person’s size or weight, or any other status protected under federal, state, or local law.

Please send resumes and expression of interest to:

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