--- title: 'HR Administrator at Slingshot Biosciences' canonical: 'https://feeny.ai/job/hr-administrator-slingshot-biosciences-emeryville-zet1tm3yqdj2' type: 'job' last_seen: '2026-11-06' --- # HR Administrator at Slingshot Biosciences - **Company:** Slingshot Biosciences - **Location:** Emeryville, CA - **Posted:** 2026-11-02 - **Last confirmed live:** 2026-11-06 - **Apply:** https://job-boards.greenhouse.io/slingshotbiosciences/jobs/5281708007 ## Job description Slingshot Biosciences is a fast-growing life sciences company with a platform technology and paradigm-shifting mission to make precision-engineered cell mimics the gold standard for all cell-based assay controls. We are transforming cell-based applications with the most robust, scalable, and reproducible controls available, including TruCytes™ Biomarker controls, SpectraComp® compensation controls, ViaComp® cell health controls, and FlowCytes® instrument controls. Our TruCytes cell mimics precisely replicate real cells’ optical and biochemical properties - without the sourcing, quality, or cost challenges of traditional controls.  Trusted in cell-based applications across cell therapy, drug development, and diagnostics, they empower process and analytical development, quality control, potency assessments, multi-site validations, clinical research studies, and assay development and validation. Slingshot is seeking motivated, creative team members who think outside the box. We empower employees to own their work, contribute ideas quickly, and improve processes. Come join our cross-disciplinary and world-class team that is delivering game-changing solutions for cell-based applications! HR Administrator Reporting directly to the CEO, the HR Administrator is the on-site HR and operations resource at Slingshot, keeping day-to-day people and workplace operations running smoothly. This role administers benefits and HRIS processes, maintains accurate employee records, coordinates offboarding, supports compliance, manages office facilities and vendor relations, and runs the logistics behind performance and engagement programs. Working alongside an external HR consultant and the Legal team, the HR & Office Administrator handles routine HR and office management matters directly and escalates complex or sensitive issues. The ideal candidate is organized, detail-oriented, and dependable, with a strong service mindset and the discretion to handle confidential information. Learn more about Slingshot and what we do: [See what Cell Mimics can do](https://slingshotbio.com/cell-mimics/) [About Slingshot Biosciences](https://slingshotbio.com/about-us/) Location: Hybrid; 4 days per week onsite in Emeryville, CA HQ. ## Responsibilities ## Benefits, HRIS & Offboarding Administration - Administer day-to-day benefits, including enrollments, employee questions, and qualifying life event processing, through the benefits administration platform and in partnership with the benefits broker and carriers. - Support annual open enrollment logistics and employee communications. - Maintain accurate employee records in the HRIS, process employee data changes, and run routine reports for Finance and leadership. - Communicate payroll-impacting changes, such as benefit elections, status changes, and terminations, to Finance accurately and on time. - Coordinate employee offboarding, including termination checklists, HRIS and benefits platform updates, carrier terminations, COBRA notifications through the third-party administrator, and exit paperwork. - Coordinate with the employer of record (EOR) on records and changes for internationally based employees. Employee Relations & Compliance Support - Serve as the first point of contact for routine employee questions about HR policies, benefits, and processes. - Escalate employee relations matters and complex or sensitive issues to the external HR consultant or Legal, and maintain confidential documentation. - Maintain required federal and California labor law postings and track completion of California harassment prevention training. - Maintain audit-ready HR documentation in support of compliance with California, federal, and applicable employment law requirements. Performance Management & Employee Experience - Administer performance review cycle logistics, including scheduling, tracking completion, and answering manager process questions. - Distribute Employee Handbook and policy updates and track employee acknowledgments. - Support employee engagement and culture initiatives, including coordinating company events. Office Management & Workplace Operations - Manage day-to-day office operations to ensure a safe, clean, organized, and productive workplace environment. - Serve as the primary point of contact for office-related inquiries, supplies, equipment maintenance, and facilities support. - Monitor and order office, kitchen, and administrative supplies; manage vendor relationships and purchasing within approved budgets. - Liaise with building management, landlords, IT support, and external vendors for facility repairs, maintenance, space planning, and security access. - Coordinate logistics for on-site meetings, company events, catering and visitor reception. ## Requirements - Minimum 3+ years of HR administrator, coordinator, or HR operations experience; life sciences, biotech, or other regulated environment a plus. - Experience with ATS platforms (Greenhouse preferred) and HRIS systems (NetSuite SuitePeople HR or equivalent). - Working knowledge of California and federal employment law fundamentals. - Proven ability to handle sensitive and confidential employee information with discretion. - PHR, PHR, or SHRM-CP certification a plus. Salary and Benefits: The base salary range for this full-time position is between $85,000 and $105,000 + benefits. Our salary ranges are calculated by role and level. Your position within that range will be determined by your job-related knowledge, skills, experience, relevant education, and training/certifications. In addition to those factors, we also examine internal equity as well as consider current market rate, and title may be assessed one level lower or higher accordingly. After you join the company, your performance, contributions, and results, along with business and organizational needs, will affect your base salary. About Slingshot: Our north star is to make healthcare more accessible around the world. We are doing this by advancing cell biology to develop innovative solutions for human health. At Slingshot, we value diversity and believe that a variety of backgrounds and experiences leads to more innovative ideas and a better understanding of our customers. Passion is at the core of our values, and employees are encouraged to pursue their passions in their work and contribute to the company's overall mission. Slingshot Biosciences is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Legal authorization to work is required for all roles. Employment eligibility will be verified in accordance with applicable laws in the country where the position is based. For U.S.-based roles, this includes completion of required employment eligibility verification. For international roles, employment may be facilitated through an Employer of Record (EOR) in compliance with local regulations. ## About Slingshot Biosciences ## Company Overview - **One-liner**: Slingshot Biosciences designs and manufactures synthetic polymer-based cell mimics that serve as reproducible, scalable controls for flow cytometry, cell therapy, and diagnostic assays. - **Entity Type**: Private (Series A – multiple tranches with $64.2M total funding) - **Headquarters**: Emeryville, California, United States - **Founded**: 2012 - **Founders**: Dr. Jeffrey Kim (Founder, Board Director) ## Core Business - Primary industry: Biotechnology Research / Life Sciences Tools - Target customers: B2B – biopharma & CGT companies (IND-enabling, CAR-T potency), CROs, academic & core labs, reference labs, and instrument manufacturers. - Mission: “Accelerate the discovery of innovative diagnostics and treatments that will improve and extend human life.” [slingshotbio.com/about-us](https://www.slingshotbio.com/about-us) ## Products & Services - **TruCytes™ Biomarker Controls**: Customizable polymer cell mimics that replicate optical and biochemical properties of real cells, used for compensation, unmixing, immunophenotyping, and quantitative antigen density measurement. (SaaS-like consumable) - **SpectraComp®**: Compensation controls for spectral flow cytometry. (Consumable) - **ViaComp®**: Cell health / viability controls. (Consumable) - **FlowCytes® (WBC Fixed/Unfixed)**: Instrument standardization and harmonization controls. (Consumable) - **TBNK Mimic™**: Mimic for T, B, NK cell subset gating and instrument performance validation. (Consumable) - **QuantCytes™ CD19**: Quantitative antigen density control. (Consumable) - **Custom Design Service**: Engineering of cell mimics with rare biomarkers (e.g., CD47, CD122, CD14, EGFR, CD65, 200+ options) for specific assay needs. (Service) [slingshotbio.com](https://www.slingshotbio.com/) ## Market Standing - **Valuation**: Not disclosed - **Key Metric**: Annual revenue $13.6M (LinkedIn estimate) | Total funding $64.2M across prior rounds - **Notable Investors/Partners**: ARCH Venture Partners, Northpond Ventures, Anterra Capital, Tao Capital Partners, Myeloma Solutions Fund. Board includes Nicolas Barthelemy (Chair), Andrew Lee, Patrick Weiss, Corey Ritter, Keith Crandell (observer), Ron Silberman, Philip Austin. [slingshotbio.com/about-us](https://www.slingshotbio.com/about-us) - **Growth Signals**: - 49 employees (though -19.7% YoY) - Active headcount in R&D (26% of workforce) and sales (16%) - 5 active job postings, +66.7% MoM and +150% YoY in job posting growth - Global multi-site instrument standardization study published (30+ cytometers across multiple labs) - Expansion into CAR-T potency assays and synthetic antigen-presenting cell mimics (recent patents) - Recent hires: Dr. Nimisha Srivastava (COO), Tiffany Salas-Morris (CCO, departed Mar 2026) [linkedin.com/company/slingshot-biosciences](https://www.linkedin.com/company/slingshot-biosciences) ## Competitive Advantages - **Synthetic reproducibility**: Polymer-based mimics eliminate donor variability, cold-chain requirements, and lot-to-lot drift – providing a stable reference across sites, operators, and years. - **Rare biomarker customization**: Can engineer mimics with low-frequency or hard-to-source markers, enabling assays that were previously infeasible with biologic controls. - **Shelf-stable and scalable**: No cold chain, on-demand delivery, high-throughput precision manufacturing. - **IP moat**: Patents covering hydrogel-based engineered particles, apoptosis-resistant mimics, and synthetic antigen-presenting cells for potency assays. [slingshotbio.com](https://www.slingshotbio.com/) | [Google Patents excerpt via LinkedIn](https://www.linkedin.com/company/slingshot-biosciences) ## Strategic Focus - Become the “new standard of flow cytometry controls” by replacing biologic controls with synthetic cell mimics. - Expand into cell therapy (CAR-T potency, IND-enabling studies) and diagnostic instrument standardization. - Drive multi-site harmonization for global pharma and CRO networks. - Continue developing custom mimics for rare biomarkers and quantitative antigen density applications. [slingshotbio.com](https://www.slingshotbio.com/) ## Why Work Here - **Mission-driven**: Directly contribute to making diagnostics and therapeutics more accessible. - **Innovative technology**: Work at the intersection of synthetic biology, polymer chemistry, and flow cytometry. - **Small but growing team**: Current headcount ~49 with active hiring in sales, engineering, and HR. - **Location**: Emeryville, CA (San Francisco Bay Area) – office-based (no explicit remote/hybrid policy mentioned, but roles likely require on-site lab work; some field sales roles are remote). - **Culture**: Described as “creative problem solvers” with a growth mindset. Diverse background teams. [slingshotbio.com/about-us/careers](https://www.slingshotbio.com/about-us/careers) - **Open positions** (as of recent): Technical Sales Consultant, Lab Automation Hardware Engineer, Associate Director HR, Senior Accountant. [boards.greenhouse.io/slingshotbiosciences](https://boards.greenhouse.io/slingshotbiosciences) ## Sources 1. [slingshotbio.com](https://www.slingshotbio.com/) 2. [slingshotbio.com/about-us](https://www.slingshotbio.com/about-us) 3. [slingshotbio.com/about-us/careers](https://www.slingshotbio.com/about-us/careers) 4. [boards.greenhouse.io/slingshotbiosciences](https://boards.greenhouse.io/slingshotbiosciences) 5. [linkedin.com/company/slingshot-biosciences](https://www.linkedin.com/company/slingshot-biosciences) ## Other roles at Slingshot Biosciences - [Office Manager & Workplace Experience Coordinator](https://feeny.ai/job/office-manager-workplace-experience-coordinator-slingshot-biosciences-emeryville-scmz09pb5fqh) — Emeryville, CA - [Manufacturing Associate](https://feeny.ai/job/manufacturing-associate-slingshot-biosciences-emeryville-xdnme5rkhzm9) — Emeryville, CA - [HR Administrator](https://feeny.ai/job/hr-administrator-little-sprouts-llc-lawrence-85qjfvsrxa0e) — Lawrence, MA - [HR Administrator](https://feeny.ai/job/hr-administrator-cookunity-new-york-6ka0y1rev2ch) — New York, NY