Summer 2026 Internship - Software Engineering jobs in United States
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Pacific Fusion · 10 hours ago

Summer 2026 Internship - Software Engineering

positionSan Leandro, CA
timeInternship
remoteOnsite
seniorityIntern
money$42/hr - $48/hr
workcardStart in 2026 Summer

Pacific Fusion is a company focused on providing clean energy through advanced fusion technology. As a Software Engineering Intern, you will assist in developing user interfaces and backend systems that support the operation of a fusion demonstration facility, collaborating with engineers and scientists to ensure effective software solutions.

EnergyNatural ResourcesRenewable Energy

Responsibilities

Develop and improve web-based user interfaces for:
System status and health monitoring
Experiment or facility configuration
Alerts, events, and diagnostics
Assist in building backend services that:
Serve real-time and historical facility data
Manage configuration, metadata, and system state
Interface with controls systems and data pipelines
Support integration between:
UI applications, backend APIs, and facility systems
Write clear, maintainable code and contribute to code reviews
Help test, debug, and validate software used in live environments

Qualification

Web programmingBackend programmingTypeScript / JavaScriptGoPythonAPIsData flowSQLNoSQL DatabasesClient–server applicationsGitReactData visualizationContainers (Docker)MATLABExcel

Required

Pursuing a degree in Computer Science, Software Engineering, or a related field (Junior, Senior, or graduate student preferred)
Coursework or experience in Software development fundamentals
Coursework or experience in Web or backend programming
Familiarity with at least one of TypeScript / JavaScript, Go or Python
Basic understanding of Client–server applications
Basic understanding of APIs and data flow
Basic understanding of SQL and NoSQL Databases
Able to work full time, onsite for a minimum of 10 consecutive weeks beginning in June 2026

Preferred

Experience with React or other modern UI frameworks
Experience with REST or event-based API
Experience with Git and collaborative development
Interest in Industrial systems, automation, or controls
Interest in Data visualization or real-time systems
Exposure to Containers (Docker)
Exposure to Time-series or telemetry data
6+ months of a previous internship, co-op, or academic project experience outside of normal classes
GPA of 3.5 or above
Basic experience with CAD Software, MATLAB, Python, or Excel

Benefits

Industry-competitive salary
Equity plan
6% employer 401k matching
Generous paid time off (including sick leave, vacation, paid family leave)
Medical, Dental, and Vision insurance

Company

Pacific Fusion

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Pacific Fusion focuses on renewable energy generation, emphasizing affordable fusion power inspired by nature.
dateFounded in 2023
location
Fremont, California, USA
people-size51-200 employees
web-link
https://www.pacificfusion.com

Funding

Current Stage
Growth Stage
Total Funding
$900M
2024-10-25Series A· $900M

Leadership Team

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Will Regan
Founder & President
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Recent News

Crunchbase News
A Little Background On Fusion Funding And TAE Technologies, The Company Merging With Trump Media
2025-12-18
Benzinga.com
These 5 Fusion Startups Have Raised Billions Backed By Bill Gates, Sam Altman, And Google — Here's When They Promise Real Power
2025-10-03
East Bay Times
Newsom signs legislation to bolster fusion, quantum technologies
2025-10-03
Company data provided by crunchbase