Question 1

What is the median H-1B salary at Spark Therapeutics?

Accepted Answer

Spark Therapeutics pays a median H-1B salary of $98,100 for sponsored positions, with an average of $100,567. The average prevailing wage across Spark Therapeutics's filings is $86,259. These figures are based on Labor Condition Application filings with the Department of Labor.

Question 2

What is a prevailing wage determination?

Accepted Answer

A prevailing wage determination (PWD) is a wage rate set by the Department of Labor for a specific occupation and geographic area. Before filing an LCA, employers request a PWD from the DOL, which surveys wage data to determine what workers in similar roles are typically paid in that location. H-1B employers must pay at least the prevailing wage or the actual wage paid to other employees in the same role, whichever is higher. The prevailing wage column in the table above shows the DOL-determined floor for each position.

Question 3

How does Spark Therapeutics pay compared to the prevailing wage?

Accepted Answer

Spark Therapeutics's average offered wage is $100,567, compared to an average prevailing wage of $86,259 across its filings. When a company pays above the prevailing wage, it indicates the offered salary exceeds the DOL-determined market rate for the occupation and area. The salary table above shows both the offered and prevailing wages for each individual filing.

Question 4

What are H-1B wage levels I through IV?

Accepted Answer

The DOL sets prevailing wages at four levels: Level I (Entry) at the 17th percentile, Level II (Qualified) at the 34th percentile, Level III (Experienced) at the 50th percentile, and Level IV (Expert) at the 67th percentile. These levels reflect the complexity of the job duties and experience required. The prevailing wage is specific to each occupation (SOC code) and metropolitan statistical area. Higher wage levels indicate more senior positions.

Question 5

What is the H-1B salary requirement?

Accepted Answer

There is no single minimum salary for H-1B visas. Employers must pay the higher of the actual wage (what they pay other employees in the same role) or the prevailing wage determined by the DOL for the specific occupation and geographic area. The prevailing wage varies by job, location, and wage level. A Level I software engineer in a small metro area will have a very different floor than a Level IV software engineer in San Francisco or New York.

Job Title	Positions	Min	Median	Max
Scientist, Analytical Development	4	$96,325	$98,100	$98,100
Computer Systems Validation Specialist	3	$89,773	$89,773	$89,773
Drug Product Development Senior Scientist	2	$126,589	$126,589	$126,589
Downstream Process Development Science Engineer	1	$103,200	$103,200	$103,200
Lead Statistical Programmer	1	$147,700	$147,700	$147,700
Manager Purification Process	1	$123,500	$123,500	$123,500
Ngs Research Scientist	1	$77,040	$77,040	$77,040
Operational Excellence Specialist	1	$94,786	$94,786	$94,786
Process Development Scientist - Upstream	1	$98,100	$98,100	$98,100
Research Associate	1	$77,500	$77,500	$77,500
Research Associate – Immunology	1	$68,320	$68,320	$68,320
Research Scientist - Formulation	1	$98,600	$98,600	$98,600
Research Scientist – Formulation	1	$98,600	$98,600	$98,600
Scientist - Upstream Pd Process Analytical Tech Development	1	$98,100	$98,100	$98,100
Scientist, Vector Engineering	1	$115,253	$115,253	$115,253
Senior Research Associate	1	$95,000	$95,000	$95,000
Senior Research Associate - In Vivo, Cns	1	$86,400	$86,400	$86,400
Senior Research Scientist - Discovery Research Group	1	$105,800	$105,800	$105,800
Senior Research Scientist - Nucleic Acid Formulation Science	1	$114,400	$114,400	$114,400
Senior Scientist - Downstream Process Development	1	$92,000	$92,000	$92,000

Location	Positions	Min	Median	Max
Philadelphia, Pennsylvania	30	$68,320	$98,100	$147,700
Indian Trail, North Carolina	1	$125,800	$125,800	$125,800
Pipersville, Pennsylvania	1	$86,400	$86,400	$86,400

Spark Therapeutics — H-1B Sponsored Salaries

Spark Therapeutics H1B Salaries

Salary Distribution (2025)

Salary by Job Title (2025)

Salary by Location (2025)

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