Day & Zimmermann
dayzim.com
Actively hiring
Nuclear Engineering
Nuclear Energy
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Overview
Day & Zimmermann is a family-owned Philadelphia company providing construction and engineering, maintenance and modifications, staffing, security and defense munitions services to corporations and governments. Founded in 1901, it has a global workforce of about 32,000, annual revenue of about 2.9 billion dollars, more than 900 work locations and a footprint at 57 percent of the US nuclear fleet, with units that include American Ordnance and Mason and Hanger. It hires nuclear electrical and mechanical engineers, production operators, laboratory and quality technicians, hazmat truck drivers, RPO recruiters, network engineers and engineering interns.
Tech stack
Technologies named in job postings at Day & Zimmermann over the last 12 months, by layer, with the share of postings for each.
Technologies in use
26
Postings analysed
25
Stack modernity
65/100
Languages
JavaScript8%
ABAP4%
SQL4%
Assembly4%
Frameworks & libraries
Commander.js4%
Keystone Engine4%
Databases
Oracle4%
Cloud & platforms
Power BI8%
Alation4%
Collibra4%
SAP Fiori4%
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Full Day & Zimmermann tech stack
26 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$103k
Typical range
$38k – $250k
Open positions
89
79
Jobs
Intern
10.1%
Junior
20.3%
Middle
22.8%
Senior
30.4%
Staff
8.9%
Principal
1.3%
Architect
6.3%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Intern | 8 | $38k | $38k – $50k |
| Junior | 16 | $92k | $44k – $129k |
| Middle | 18 | $114k | $55k – $250k |
| Senior | 24 | $117k | $58k – $225k |
| Staff | 7 | $137k | $103k – $172k |
| Principal | 1 | $172k | $172k |
| Architect | 5 | $197k | $161k – $225k |
Highest paying role
Program Manager
$250k
Normalized to USD per year
All salaries at Day & Zimmermann
By role, level and city, against the market · 89 jobs with pay
Growth
Hiring Momentum
59/100
Growing
Open positions
94
102 opened / 0 closed in 30 days
Median time-to-fill
2 days
faster than 93% of the market
ATS activity
Every ~3 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Industrial Engineering
27% ▲
Field & Service
13% ▲
HR
11% ▲
Management
9% ▲
Early Careers
8% ▲
Sales
7% ▲
Actively hiring for Industrial Engineering (+28 in 30 days)
Activity Timeline
+102 jobs in a week
Oct 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Philadelphia
United States
HQ
10-50 est. staff
Jobs
$107k – $161k per year • In office • 10+ years exp • Bachelor's Degree
Apply
$118k – $192k per year • Hybrid • 10+ years exp • Bachelor's Degree
TCP/IP
VPN
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$92k – $137k per year • In office • 5+ years exp • Bachelor's Degree
Python
SQL
PowerShell
Power BI
ETL/ELT
Informatica
Microsoft Excel
Master Data Management
Collibra
Alation
Apply
$116k – $189k per year • In office • Bachelor's Degree
ABAP
SAP Fiori
Apply
$61k – $92k per year • Hybrid • 5+ years exp • High School Diploma
Microsoft Excel
Management
Outlook
SharePoint
Apply