Founding Peptide Scientist — Night Shift, Equity Eligible
$150k - $220kStealth Deep Tech
Founding Scientist (Organic Chemistry) - Night Shift (Core Hours 10PM-10AM) San Francisco · Full-time · $150–220K, includes night shift compensation premium It's 10 PM. You walk through the glass doors at the San Francisco lab, grab a coffee, grab a Red Bull, and pull up the overnight dashboard. The day team has handed off. Yesterday's cell and mouse data has already been crunched — the house AI parsed the PK curves, flagged the outliers, and ranked the candidates. Two peptides from last week's batch showed decent half-lives. One was a dud. You read the handoff notes, skim the summary, make a note, and move on. At 11 PM, you hop on a call with the head of science from a major AI lab. He wants to understand your assay data well enough to train on it. You spend forty-five minutes on a virtual whiteboard explaining dose-response curves to someone who understands transformers better than anyone alive but has never pipetted anything. At 3 AM, the last step is done. Synthesized, purified, QC'd. That peptide didn't exist at 10 PM. You made it. You hand it off to the staging queue for the in vitro team arriving at 10 AM — clear synthesis summary, QC data, notes on anything that looked off. At 4 AM it goes into cells on an automated run. Most do roughly what you'd expect — modest activity, nothing to write home about. But one of them is oddly potent. Ten-fold over the nearest analog. You check it twice. You may have just made the most potent peptide of its class ever synthesized. By 5 AM it's dosed in mice. By 8 AM you have preliminary data. You write it up, flag it in the shared dashboard, and leave a voice note for the day team before you head out. One day. Synthesis to animal data. One day. At the morning stand-up at 10AM, someone argues whether the potency data is real or a lucky artifact. You think it's real, but you don't say that yet. You'll know tomorrow. The Mission In the age of ever-improving AI capabilities, we humans are lagging behind. We're hungry, distractable, tired. A third of our day is spent unconscious. Half of us get cancer, half of us get heart disease. We're incapable of sustained high performance. We fall ill. The modern world feeds us slop that leads even further down the drain. We believe that humans are capable of more. We believe in excellence. We believe in superpowers. We believe in the extraordinary. We're small core team. In 6 months, we have designed 270+ therapeutic candidates, run 72+ placebo-controlled mouse trials, and completed 79 custom syntheses. We're planning first-in-human safety for 2026 — which would be a world record for a non-vaccine therapeutic built from scratch. Our founding scientific advisors include Professors at Harvard and MIT. At the pre-seed stage, we raised $12M in funding. What does a future look like where we can systematically identify, validate, and induce beneficial capabilities? The first program: Inducing short-sleeper phenotypes in adults. But we are interested in more: cognition, Alzheimer's, birth control, extending the visual spectrum, and more. We’re supportive of team members taking on major leadership or even starting their own programs. If you want to spin up your own program, we have the resources, advisors, and tools to make it happen. The Role You'll be one of the founding scientists at the company. We're targeting first-in-human dosing by mid-2026. If we hit it, this is also a world record for moving a non-vaccine therapeutic into the clinic from scratch. Most biotechs take weeks to go from synthesis to animal data. Here, it happens in one day. You synthesize peptides through the night, run them through cell assays in the early hours, dose top candidates in mice before dawn, and hand the results to our ML team as the day team arrives — so the next version is already being designed before you've left the building. We do not know of another lab on earth running this loop at this speed. One day. Synthesis to animal data. One day. Start-ups are unique. Roles aren't as ossified or constrained as in a large corporation--you'll often learn a new role every few months, enabling you to grow as a person and team member. Keep this space for growth and variability in mind when reading this rough outline of what working together could look like. As we are spinning out multiple deep research projects, if you want to lead your own program, we are open to that. Weird ideas are welcome! More concretely, you will… Run Fmoc SPPS on the Liberty Blue — design the sequences, own the synthesis, troubleshoot failed couplings and difficult aggregating peptides Purify on the Agilent 1260 and 1290 prep HPLC — method development, fraction collection, yield optimization Confirm structure and purity by LCMS on the Agilent 6530 — you read a spectrum and know immediately if something is wrong Hand candidates to the in vitro team with a clear synthesis summary and QC data they can trust Pick up in vivo work over time — mouse dosing, PK sampling, plasma processing — prior experience not required, good hands and curiosity are Troubleshoot on the fly — failed coupling, mystery yield loss, peptide that won't dissolve — you don't wait to be told what to try next Own the overnight handoff — document results well, flag anomalies, and communicate async with the day team so they wake up to answers, not questions. You are often the only scientist in the building; your notes are the bridge between shifts. What you'll get If we hit our 2026 timeline, your name is on the fastest non-vaccine drug to reach the clinic. In a year you'll have run synthesis, cell assays, animal studies, and ML-driven design. More than most scientists have learnt in a decade. Your experiments directly determine what goes into humans. You might be a fit if: You picked up a hard technical skill (flow cytometry, mass spec, animal work) in weeks, not semesters You are a deeptech generalist who has shipped hard projects under time pressure You published before or shortly after graduating (first author or meaningful contribution) You've won a competitive fellowship, scholarship, or research award (e.g., Goldwater, NSF GRFP, HHMI) You built something in a lab that wasn't handed to you — troubleshot a new assay, optimized a protocol others gave up on Your PI would say you were in the top 1% of students they've trained (not an exclusion criterion) You're the person teams rely on when experiments need to be planned and executed This role suits early-stage scientists, graduate students, hands-on researchers—or scientists who miss building from scratch Working together $150,000 - $220,000 per year, with room for upside and promotions as the company grows. Generous equity on a vesting schedule, at least $100k worth of equity under our standard vesting schedule Healthcare. Your Wellness budget: $500+ per month to spend on training, supplements, medication, and everything that you need to become your best self. How we work: Small team, high trust, high agency High responsibility We prefer written clarity over meetings We move fast by parallelizing, being decisive, and keeping quality systems lightweight but real We care about speed, safety and quality, not paperwork theater If you find a better way, you can change the system All of this is open to conversation--we'll work with you to make it work. You'll work alongside the founding team—small, lean, moving fast
JOIN THE FOUNDING MOMENT.
If this is you — or you know someone — 1-min form here . We review every application personally. $10K referral bonus if we end up working together for 90+ days. #J-18808-Ljbffr Stealth Deep Tech$120k - $180k
Founding Scientist (Peptide Chemistry) San Francisco · Full-time · $120-180K depending on what you bring $10k referral bonus for successful hires (half equity, half cash). It's Monday, 10 AM. You walk through the glass doors at the San Francisco lab, grab a coffee, grab...Night shiftEmployment EquityFull timeImmediate startDay shiftAfternoon shift- Stealth Deep Tech in San Francisco is seeking a Founding Scientist specializing in peptide chemistry to lead groundbreaking research with the potential to... .... This role offers competitive compensation, equity options, and a unique opportunity to shape the future of...Employment Equity
$500 per month
Founding In-Vivo Scientist San Francisco, CA - Full-Time - On-site Monday morning... ...walks over with a vial. Novel peptide, synthesized this morning... ...our ML model proposed last night. IV dosing this afternoon.... ...the company grows. Generous equity on a vesting schedule....Night shiftEmployment EquityFull timeDay shift$120k - $180k
...bonus for successful hires (half equity, half cash). It's Monday, 10... ...while you slept. Two peptides from last week's batch showed... ...therapeutic built from scratch. Our founding scientific advisors include... ...'ll be one of the founding scientists at the company. We're targeting...Night shiftEmployment EquityDay shiftAfternoon shift$140k - $220k
...Founding Medicinal Chemist (Small Molecules) $10k referral bonus for successful hires Half equity, half cash. $140,000–$220,000 per year This is a full-time role in San Francisco... ...into drug discovery, early-career industry scientists, or unusually strong PhDs and postdocs...Night shiftEmployment EquityFull time$200k
Founding ML Engineer San Francisco, on-site, full-time - $200,000 -... ...bonus for successful hires (half equity, half cash). It's Monday, 10... ...while you slept. Two peptides from last week's batch showed... ...You'll be one of the founding scientists at the company. We're targeting...Night shiftEmployment EquityFull timeDay shiftAfternoon shift- AI Chopping Block, Inc. is seeking a Founding Research Scientist for Human Simulation in San Francisco, CA. This role focuses on leading research... ...behavior. The position offers top-of-market compensation, equity, and a chance to influence a rapidly growing company at a...Employment Equity
- ...stealth physical AI startup in San Francisco, is seeking a Founding Research Scientist to lead the research function. This role involves training... ...experience. This unique opportunity offers significant equity and the chance to set the research agenda from scratch. #J...Employment Equity
- Job Title Founding Research Scientist Company Description Stealth physical AI startup Job Description You will lead the research function at a... ...model performance. This hands‑on role offers significant equity and the chance to build a research stack from zero. Location...Employment Equity
- Founding Research Scientist, Human Simulation TL;DR: Listen is building the human layer of AI: a preference... ...at building things, the bottleneck shifts to knowing what to build. We're the bridge... ...market compensation with meaningful equity. Comprehensive healthcare and dental,...Employment EquityFlexible hoursShift work
$68.5 - $85.62 per hour
...LICENSURE: CLSL-Clinical Lab Scientist Generalist SKILLS AND... ...systems failure. 3) Shift-to-Shift hand-offs. 4)... ...timeframes. Job Shift: Evening/ Night Schedule: Part Time... ..., departmental equity, training, and organizational... ...total rewards program. Eligible positions also include...Night shiftEmployment EquityPart timeLocal areaShift workWeekend workAfternoon shift$175k - $200k
...to a domain that has historically resisted automation. As the Founding Tax Analyst, you will shape the foundation of the product and help... ...related forms to identify optimization opportunities including equity compensation, AMT, trusts, estates, and multi-entity portfolios...Employment EquityFull timeRelocation package$160k - $280k
...You’ll work closely with the founding team and have ownership of a... ...models trained with an H100/scientist ratio of 100x. Check out our... ...Additional Notes: Applicants must be eligible to work in the US.... ...$160,000 - 280,000 + target equity + benefits (including medical...Employment EquityWork at officeFlexible hours- ...technologies to Mars for NASA/JPL, co‑founded and led infrastructure for... ...seeking a Senior Geospatial Scientist to lead the development of... ...(green card holder) Eligible to obtain required authorizations... ...package based on experience. Equity: Early‑stage equity package so...Employment EquityPermanent employmentTemporary workRemote work
$114.2k - $306.6k
...looking for outstanding AI Research Scientists / Research Engineers.**Our team... ...experience. Certain roles may be eligible for incentive compensation, equity, and benefits. Salesforce offers a... ...details about company benefits can be found at the following link: to the San...Employment EquityFull time- ...care affordable and accessible for all. Founded in 2018, Kindbody has been recognized for... ...raised more than $315 million in debt and equity funding from leading investors. Responsibilities... ...} ~ TS (ABB) certified or eligible ~ Able to work independently with minimal...Employment EquityLocal areaRemote workFlexible hours
$70.3k - $82.8k
...04 - $82,800 per year. Actual salaries will vary and are based on several factors, such as experience, education, budget, internal equity, project and location. Equal Opportunity Statement We are an equal opportunity employer. We are dedicated to a policy of non-discrimination...Night shiftEmployment EquityFull timePart timeWork at officeRemote workFlexible hours$146.8k - $272.6k
...Statement & Cookie Policy**Senior Applied Scientist page is loaded## Senior Applied... ...compensation range varies across locations.Eligible office location(s) for this role include... ...experience with consideration given to internal equity. Base pay is one part of a comprehensive...Employment EquityWork at officeLocal areaFlexible hours2 days per week3 days per week$69.5 - $86.57 per hour
...work experience and internal equity within this position classification... ...of a clinical laboratory Scientist's license or a similar license... ...Must be able to work variable shifts as required by laboratory operations including weekends, nights, and early mornings. Accurate...Night shiftEmployment EquityHourly payWork experience placementWorldwideShift workEarly shift$160k - $225k
...providing essential care to millions of people across the U.S. Founded in 2016, we are a remote-first team of over 1,000 people building... ...data environments. Compensation $160K-$225K base + $50K-$150K equity. Range reflects experience; we'll be direct about where you'd...Employment EquityWork at officeRemote work3 days per week$150k - $220k
...Founding Machine Learning Engineer San Francisco Compensation ~ Estimated base salary $150K – $220K • Offers Equity • Offers Bonus We invest in our team's success with comprehensive... ...a balanced diet. Sleep 8 hours a night. Exercise frequently. Maintain...Employment EquityH1bWork at officeVisa sponsorshipSleeping nights- ...The Role We are looking for an Applied Scientist to own the models that decide which ad appears... ...will work directly with our CTO and the founding engineering team on the systems powering... ...and the company. Ownership: Meaningful equity in a company at the intersection of two...Employment EquityRelocation
$164.6k - $313.3k
.... You will work alongside a world-class team of scientists and engineers to invent, evaluate, and scale next... ...Plan (AIP). In addition, certain roles may be eligible for long‑term incentives in the form of a new hire equity award. State‑Specific Notices: California: Fair...Employment EquityTemporary workLocal area- ...The Role You'll be joining as our Founding SDR, helping build the sales engine that... ...sciences industry Receive meaningful equity ownership and a clear path to expanded leadership... ...than a dull grind. Whether it's bowling night, Napa wine tastings, or cheering on the...Night shiftEmployment EquityWork at office
$150k - $250k
...This is a 1 of 1 role. We're looking for a founding engineer to work alongside a Thiel Fellow... ...employee #1. Great compensation, equity, and perks. About Empathic “…but I tell... ...the beautiful chaos and occasional late nights of the earliest stage. You’ll have 4-10x...Night shiftEmployment EquityWork at officeImmediate start$172.35k - $230.7k
...Public Health work to advance equity, inclusion, and diversity... ...Many positions at ZSFG start on night shift (e.g., 7:00pm-7:00am) The Mission... ...specification, which can be found on DHR’s website: Minimum... ...certification rule for the eligible list resulting from this...Night shiftEmployment EquityHourly payPermanent employmentFull timeTemporary workPart timeWork experience placementInterim roleSecond jobLocal areaMonday to Friday$66.36 - $82.88 per hour
...CLSL-Licensed Clinical Lab Scientist Skills and Knowledge:... ..., or schedule form. Job Shift: Evening/ Night Schedule: Part Time Shift... ..., departmental equity, training, and organizational... ...comprehensive total rewards program. Eligible positions also include a...Night shiftEmployment EquityPart timeShift workAfternoon shift$400k
...Someone interrupts, emotions shift, the flow breaks — and the model... .... Role As a Senior Research Scientist, your focus is post‑training... ...and SFT experience The founding team includes a founding engineer... ...and $500k base with generous equity. Based in San Francisco, onsite...Employment EquityRelocation packageShift work$150k - $200k
...the adoption of AI for chip design. About the role As a founding software engineer at Bronco AI, you will be building world-... ...distributed systems What We Offer Competitive salary and equity package Comprehensive benefits including health, vision, and...Night shiftEmployment Equity$140k - $160k
Scientist / Sr Scientist - Therapeutic Discovery (Protein Engineering)... ...and optimization against novel peptide-HLA targets using yeast... ...abilities, as well as internal equity and alignment with market data. This position is also eligible for annual performance bonus,...Employment Equity
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