Serova - Founding Product Engineer
Quick facts
- Pay
- $185,000 - $205,000 a year
- Type
- Full-time
- Location
- San Francisco, CA
- Skills
- Python, TypeScript, React
- Industry
- Research and Science — 82 open jobs
- Visa in listing
- H-1B, OPT
- Apply
- Free to apply — never pay anyone for a job offer or visa sponsorship
Job description
Serova designs personalized mRNA cancer vaccines (founded 2024, 20 people, $35M raised). Founding role owning product end to end: design, frontend, backend.
Comp: $185K-$205K base (flex for exceptional) + 0.05%-0.25% equity. Location: On-site 5 days (SF or London); remote only for exceptional; relocation case-by-case. Visa: Open to visa transfers (OPT, H1B transfers).
Responsibilities
- Build Serova's first patient- and clinician-facing product on top of internal data (antigen prediction, vaccine design, case status)
- Rebuild the scientific dashboard from scratch: UX, visual design, implementation
- Work with clinical, wet lab, manufacturing and engineering teams to design workflows
- Build internal tools/front-end services (data access, follow-ups, CRO/manufacturing processes) on one shared DB
- Lead new product surfaces concept-to-production (Postgres, Python, React/TypeScript)
Tech stack: React, TypeScript, Python, PostgreSQL
Source: https://www.paraform.com/share/serova/cmuoidko000ae0clb18832se1
- 1-6 yrs full-time engineering, owned a product end to end (FE+BE), ideally 0-1 at Seed-Series B
- Real product and design taste; ships without spec/designer/PM
- Track record of products non-engineers used
- Bonus: design-engineer profile, dense-data/scientific UIs, founder or first-10 employee
- On-site 5 days in SF or London
Visa sponsorship record
No public sponsorship records foundWe didn't find H-1B, H-1B1, E-3 or green card (PERM) filings under the name deCircle in the Department of Labor and USCIS data. That doesn't mean the job can't be sponsored — the company may file under a different legal name, be new to sponsorship, or sponsor a visa that isn't in these datasets (for example H-2B or J-1).
Tip: ask the recruiter early, in writing, which visa they sponsor and whether they cover the legal and filing fees.
Which visas can work for this job
Occupation: Engineers, All Other (SOC 17-2199) — estimated from the job title.
- Mentioned in the listing
H-1B, OPT
- H-1B cap-exempt employer
Regular cap-subject employer — a new H-1B needs to win the lottery in March (unless you already hold cap-counted H-1B status).
- TN (citizens of Canada and Mexico)
This kind of role may fit the USMCA profession “Engineer” — it depends on the actual duties. No lottery, no cap; you need the matching degree or license.
- E-3 (Australia) and H-1B1 (Chile, Singapore)
Same degree requirement as H-1B, but no lottery and a separate quota that is rarely filled.
- O-1 (extraordinary ability)
For candidates with awards, publications, press, a high salary or critical roles at distinguished organizations. No cap, no lottery; the employer files a petition.
- STEM OPT extension (F-1 students)
Requires an E-Verify employer. We didn't find this company in the E-Verify list — ask HR.
Salary vs prevailing wage
Level III (experienced)Engineers, All Other · San Francisco-Oakland-Fremont, CA. Annual prevailing wages set by the Department of Labor (OFLC).
| Level | Prevailing wage | H-1B lottery odds* |
|---|---|---|
| Level I | $98,051 | ~15% |
| Level II | $130,146 | ~31% |
| Level III | $162,261 | ~46% |
| Level IV | $194,355 | ~61% |
This job pays $185,000–$205,000 a year — that's Level III (experienced). In the wage-weighted H-1B lottery a Level III registration gets 3 entries; estimated selection chance about 46% — better than average.
* Odds are DHS projections for the FY2027 wage-weighted lottery (actual results vary by year and employer). Since the FY2027 cap season the H-1B lottery is weighted by wage level: Level I = 1 entry, II = 2, III = 3, IV = 4. The level is set by the offered wage against the prevailing wage for the occupation and worksite. Separately, a $100,000 fee for new H-1B petitions for workers outside the US was announced in 2025; as of September 2026 a federal court ruling keeps it unenforceable while appeals continue — check the current status.
Sources: U.S. Department of Labor OFLC disclosure data (H-1B/H-1B1/E-3 LCA, PERM), OFLC prevailing wage data, USCIS H-1B Employer Data Hub, E-Verify participating employers. Data loaded: LCA FY2024–FY2026, PERM, USCIS Data Hub, OFLC wages; updated 2026-10-03. Employers are matched by name, so records of companies with similar names can occasionally be mixed up. This is general information, not legal advice — talk to an immigration attorney about your case.