--- title: 'Executive Assistant at SonoThera' canonical: 'https://feeny.ai/job/executive-assistant-sonothera-south-san-francisco-jw6fmh1ch1jr' type: 'job' last_seen: '2026-10-18' --- # Executive Assistant at SonoThera - **Company:** SonoThera - **Location:** South San Francisco, CA - **Posted:** 2026-04-14 - **Last confirmed live:** 2026-10-18 - **Apply:** https://sonothera.com/careers/?gh_jid=4673179006 ## Job description About SonoThera: SonoThera is a venture-backed genetic medicine company advancing ultrasound-mediated, non-viral targeted therapies to unlock the full potential of genetic medicines. Our platform is designed to overcome key limitations in the field, enabling precise, redosable delivery across a broad range of diseases with high unmet need. Headquartered in South San Francisco, SonoThera brings together a world-class, interdisciplinary team focused on translating breakthrough science into transformative therapies. The Role: SonoThera is seeking an exceptional Executive Assistant to serve as a trusted right hand to the CEO and a critical partner in enabling executive effectiveness. This role is central to how the CEO operates day-to-day—owning time management with precision, orchestrating complex schedules and travel, and ensuring flawless execution across internal and external engagements, including board and investor interactions. The ideal candidate operates with exceptional judgment, discretion, and attention to detail. The Executive Assistant will be highly organized, proactive, collaborative and able to anticipate needs before they arise. The Executive Assistant must be able to seamlessly manage competing priorities in a fast-paced, high-performance environment. This individual is calm under pressure, communicates with clarity and professionalism across all stakeholder teams, and takes pride in delivering work at an exceptionally high standard. The candidate is deeply reliable, solutions-oriented, and capable of representing the CEO and the company with polish and credibility. What You Will Do: - Serve as a trusted partner to the CEO, proactively managing priorities, time, and focus to maximize effectiveness - Own and orchestrate complex calendars for the CEO and select members of the leadership team, ensuring alignment across internal priorities and external commitments - Coordinate and execute domestic and international travel with precision, including detailed itineraries and seamless logistics - Lead end-to-end planning and execution of meetings and events, including executive staff meetings, board meetings, investor interactions, and key internal forums - Anticipate needs and ensure the CEO and leadership team are well-prepared for all meetings and commitments - Track key action items and follow through to ensure timely execution across leadership priorities - Facilitate coordination across teams to support effective communication and execution - Provide high-impact administrative and operational support on special projects as needed Qualifications: - 5+ years of experience providing high-level executive support in a fast-paced, high-performance environment - Proven experience supporting C-level executives, ideally in a startup, biotech, or life sciences setting - Exceptional organizational and prioritization skills, with the ability to manage multiple, competing demands with precision and efficiency - Demonstrated ability to anticipate needs, exercise sound judgment, and operate with a high degree of autonomy - Strong execution skills with the flexibility to adapt quickly in a dynamic, evolving environment - Excellent written and verbal communication skills, with a high level of professionalism and attention to detail - High degree of discretion, integrity, and ability to handle sensitive and confidential information - Advanced proficiency in Microsoft Office (Outlook, Teams, PowerPoint, Excel, Word) - Resourceful, solutions-oriented mindset with a focus on continuous improvement and operational excellence - Collaborative team player with a positive, polished, and professional presence Preferred Qualifications: - Bachelor's degree - Experience supporting board meetings and investor communications - Prior experience in a high-growth or venture-backed company - Notary Public certification Benefits: We offer our employees a comprehensive benefits package. At SonoThera, we'll give you the tools to feel healthy, happy and secure. 🏋🏻 Access to a 24-hour onsite gym 💝 Comprehensive medical, dental, and vision 💰 Equity and ownership in a fast-growing company 🚗 Commuting stipend based on your geographical location 🏦 401(k) Match: SonoThera offers a company match 🏝 All full-time employees are eligible for our flexible time off policy Compensation: The salary range for this position is $115,000.00 to $150,000.00 USD annually.. This salary range is an estimate, and the actual salary may vary based on various factors, including, without limitation, individual education, experience, tenure, skills, and abilities, as well as internal equity and alignment with market data, including potential adjustments for geographic location. ## Equal Opportunity for Diversity & Inclusion SonoThera provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. ## About SonoThera ## Company Overview - **One-liner**: SonoThera is developing a proprietary, nonviral, ultrasound-mediated gene delivery platform (RIPPLE™) to enable safe, redosable, and targeted genetic medicines for a range of diseases. - **Entity Type**: Private (Series B) - **Headquarters**: South San Francisco, California, United States - **Founded**: 2022 (public launch with Series A) - **Founders**: Kenneth Greenberg, PhD (CEO & Co-Founder) and Steve Feinstein, MD (CSO & Co-Founder) ## Core Business - **Primary industry**: Biotechnology – Genetic Medicines / Gene Therapy - **Target customers**: B2B (pharma/biotech partnerships), clinical-stage drug developer; ultimately patients with genetic diseases - **Mission**: To deliver the next generation of genetic medicines to treat the root cause of human diseases. ## Products & Services - **RIPPLE™ Platform**: Proprietary, non-invasive, ultrasound-mediated delivery technology that enables broad, targeted biodistribution, delivery of diverse genetic payloads (DNA, RNA, siRNA, ASOs, gene editors) without size restriction, and is designed to be redosable, immune stealth, and cost-effective. - **Therapeutic Pipeline**: Preclinical programs targeting: - Muscle: Duchenne Muscular Dystrophy (DMD), Limb-Girdle Muscular Dystrophies (LGMD) - Kidney: X-linked Alport Syndrome (x-LAS), Autosomal Dominant Polycystic Kidney Disease (ADPKD) - Discovery: Genetic diseases of the heart, adipose tissue, and brain (CNS) ## Market Standing - **Valuation / Latest Financing**: Closed an oversubscribed **$125 million Series B** (date not specified but recent, likely 2025). Previously raised a **$60.75 million Series A** (December 2022, led by ARCH Venture Partners). - **Total Funding to Date**: At least **$185.75 million** (Series A + Series B). Additional founding capital may exist but not fully detailed. - **Notable Investors**: Series A led by **ARCH Venture Partners**; the Series B syndicate is described as top-tier venture capital and strategic investors (specific names not fully listed, but includes leading global ultrasound companies as partners). - **Growth Signals**: - Headcount grew **28.6% YoY** to **52 employees** (LinkedIn data). - Full vertical integration of payload development and in vivo pharmacology. - Strong intellectual property portfolio with foundational RIPPLE™ patents. - First human clinical trial planned for **2027**, with a steady cadence of INDs following. ## Competitive Advantages - **Nonviral delivery**: Avoids immunogenicity and material-related toxicity of AAVs and LNPs. - **Redosable**: Maintains stable therapeutic expression over time, overcoming a major limitation of viral vectors. - **Unlimited payload size**: Can deliver large gene constructs (e.g., full-length dystrophin for DMD). - **Targeted biodistribution**: Ultrasound profiles enable delivery to nearly any organ with minimal off-target effects. - **Cost-effective CMC**: Simpler manufacturing compared to viral vectors. - **Proven safety foundation**: Co-founder Dr. Feinstein invented the first two FDA-approved ultrasound microbubble agents (Albunex® and Optison®). ## Strategic Focus - Advance the RIPPLE™ platform toward clinical proof-of-concept, beginning with **first-in-human trial in 2027**. - Expand pipeline across multiple organ systems (muscle, kidney, liver, heart, CNS). - Continue building in-house capabilities for payload design, engineering, and manufacturing. - Attract strategic partnerships with leading ultrasound companies and biopharma. ## Why Work Here - **Culture**: Values-driven environment emphasizing resilience, rigor, passion, open-mindedness, collaboration, and innovation. The company states “science is hard, but we are determined to persevere” and “we act with urgency because patients are waiting.” - **Team & Environment**: Small but rapidly growing team (~50 people) offering high ownership and impact. Described as “a great place to do science” with top-quality peers. - **Work Policy**: Not explicitly stated; likely lab-based roles in South San Francisco with potential for hybrid office/lab arrangements. - **Perks & Highlights**: Opportunity to work on cutting-edge genetic medicine technology with a well-funded, well-backed startup; close collaboration across research, operations, and leadership. - **Current Openings**: 3 active roles (Nucleic Acid Analytics Intern, Executive Assistant, Senior/Principal Scientist) as of the latest data. ## Sources 1. [SonoThera Website](https://sonothera.com) 2. [SonoThera Careers Page](https://sonothera.com/careers/) 3. [SonoThera About & History](https://sonothera.com/about-us/) 4. [SonoThera Science & Pipeline](https://sonothera.com/science/) 5. 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