15 open positions

SEM Jobs with a Great Work-Life Balance

Browse 15+ sem jobs at companies offering 9-day fortnights and generous PTO—for a better work-life balance. 2 new this week. Hiring companies include Oak Ridge National Laboratory, Helion, and United Launch Alliance.

Schedules on this page

9-day fortnights 6
summer Fridays 1
generous PTO 5
unlimited PTO 2
best places to work 2

Updated October 25, 2026

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2
New this week: 11
Companies

Postdoctoral Research Associate - Organic/Polymer Chemist for Advanced Fibers

2mo

Oak Ridge National Laboratory · Remote · USA

63 · Good9 Day Fortnight

Senior Project Manager, Client Services

2mo

829 Studios · Remote · USA

62 · GoodSummer Fridays$75k – $90k

Project Manager, Digital Marketing

2mo

Power Digital · Remote · Nicaragua

60 · GoodUnlimited PTO

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Electrochemical Water Treatment Technology Specialist (KTP Associate)

Heriot-Watt University · Onsite · Edinburgh, UK

67 · GoodGenerous PTO£37k

Research Scientist - Polymer Chemistry & Hybrid Materials

AV · Onsite · Dayton, OH, USA

61 · Good9 Day Fortnight$89k – $135k

Material & Process Engineer 2

10d

United Launch Alliance · Hybrid · Decatur, AL, USA

70 · Great9 Day Fortnight

Material & Process Engineer 1

10d

United Launch Alliance · Hybrid · Decatur, AL, USA

70 · Great9 Day Fortnight

Postdoctoral Research Associate - Advanced Reactor Core Materials Characterization

1mo

Oak Ridge National Laboratory · Hybrid · Oak Ridge, USA

63 · Good9 Day Fortnight

Senior Engineering Technologist

16d

Helion · Onsite · Everett, WA, USA

59 · GoodGenerous PTO

SEM Manager

2mo

Suno · Onsite · New York City, NY, USA

59 · GoodUnlimited PTO$104k – $170k

Materials Engineer

2mo

Helion · Onsite · Everett, WA, USA

59 · GoodGenerous PTO$159k – $208k

Senior Materials Technologist

2mo

Helion · Onsite · Everett, WA, USA

59 · GoodGenerous PTO

Research Fellow (Battery Materials Recycling)

15d

University of Birmingham · Hybrid · Birmingham, UK

58 · GoodGenerous PTO£37k – £46k

Optical Transceiver Reliability and Qualification Engineer

1mo

Arista Networks · Onsite · Santa Clara, CA, USA

57 · GoodBest Place to Work$150k – $230k

Sr. Content Marketing Strategist, Web

4mo

Esri · Hybrid · Redlands, CA, USA

57 · GoodBest Place to Work$97k – $169k

Showing 15 of 15

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Frequently asked questions

Everything you need to know about 4-day week jobs

Employers hiring for Sem on this page include Oak Ridge National Laboratory, Helion, and United Launch Alliance. Sem roles appear most frequently in engineering, data, and platform teams at companies that offer a 4-day week or another flexible schedule. Each listing indicates the seniority level and whether Sem is a primary requirement or one of several preferred skills — expand any role above to see the full stack and responsibilities.

Sem roles on this page span seniority levels, from entry-level and mid-level through senior, lead, and staff or principal positions. Filter by level in the sidebar to narrow the list above to the ones that fit you.

Lead with measurable outcomes over time spent — Sem hiring managers at companies that run 4-day weeks or flexible schedules care about delivered value, not hours worked. Highlight projects where you shipped at a steady cadence, collaborated asynchronously, or reduced engineering toil through automation or tooling. Include concrete metrics (latency improvements, adoption numbers, cost reductions) rather than vague duty descriptions. Expand listings above to see the exact framing each employer uses in their job descriptions.

Pay depends on the role, seniority, location, and employer — not on the schedule alone. Sem roles in tech and data typically command premium rates, and specific ranges depend on seniority and sub-specialty (e.g. backend vs frontend, infra vs ML). Individual listings above show exact bands where the employer publishes them.

Depends on the role, but Sem candidates who also demonstrate async communication, clean documentation, and cross-functional collaboration are typically strong fits for employers that run 4-day weeks or flexible schedules — those teams rely on written-first communication and high-context handoffs. Technical-adjacent skills vary by stack. Browse the top skills shown in the sidebar to see which tags co-occur most often with Sem on current listings.

SEM Jobs with a Great Work-Life Balance

Browse 15+ sem jobs at companies offering 9-day fortnights and generous PTO—for a better work-life balance. 2 new this week. Hiring companies include Oak Ridge National Laboratory, Helion, and United Launch Alliance.

Job listings

Frequently asked questions

Job listings

Frequently asked questions

Narrow these jobs