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Trainee Software Engineer Internship Jobs (NOW HIRING)

Palantir

$10K/mo

The Role Software Engineers at Palantir build software at scale to transform how organizations ... This should be your final internship before graduating. To apply, please submit the following: * An ...

Palantir

$10K/mo

The Role Software Engineers at Palantir build software at scale to transform how organizations ... This should be your final internship before graduating. To apply, please submit the following: * An ...

Aechelon Technology

... our Summer Internship program. In addition to technical acumen, we highly value leadership skills as we believe innovation thrives when developers take initiative to make great software. This ...

Palantir

Do real, critical work with the engineers and customers building the future. Many of our interns find they want to stay - perhaps you will too. The Role Build software and deliver customer outcomes.

Virtu Financial

$5.0K - $5.8K/wk

Software Engineer Internship Virtu's internship program offers students an extraordinary opportunity to learn about the firm and the world's financial markets. We have built a thoughtful and ...

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How much do trainee software engineer internship jobs pay per hour?

As of Sep 12, 2026, the average hourly pay for trainee software engineer internship in the United States is $25.42, according to ZipRecruiter salary data. Most workers in this role earn between $20.67 and $28.85 per hour, depending on experience, location, and employer.

What is the difference between Trainee Software Engineer Internship vs Junior Software Developer?

AspectTrainee Software Engineer InternshipJunior Software Developer
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldCompleted degree or equivalent experience in software development
Work EnvironmentInternship programs, often in training or mentorship settingsFull-time employment in a development team
Employer & Industry UsageCommon in tech companies, startups, and educational programsStandard entry-level role in software companies
Search & Comparison IntentUnderstanding entry-level opportunities and training rolesSeeking full-time junior developer positions

The main difference is that a Trainee Software Engineer Internship is a temporary training position aimed at gaining practical experience, often for students or recent graduates. In contrast, a Junior Software Developer is a full-time role requiring some proven skills and ready to contribute to projects independently.

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Trainee Software Engineer Internship jobs near you
Infographic showing various Trainee Software Engineer Internship job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 86% Full Time, 9% Part Time, and 3% Contract. Highlights an 85% Physical, 3% Hybrid, and 12% Remote job distribution, with an average salary of $52,867 per year, or $25.4 per hour.

Full-Stack Software Engineer Internship (Summer 2027)

Stamford, CT • On-site

Castleton Commodities International LLC
Oil and Gas Extraction • 501 - 1,000 employees
Learn more about Castleton Commodities International LLCexternal

Full-time

This job post has expired 3 days ago. Applications are no longer accepted.

Job description

Application Deadline: September 1st at 11:59 pm EST

Program Summary - Data Science & Technology Internship

Company Overview:

Castleton Commodities International is a leading global energy commodities merchant and infrastructure asset investor. As a trader, CCI deploys capital on a proprietary basis in the physical and financial commodity markets, providing the Company with market insights and access. As a strategic investor and developer, CCI leverages its market expertise, operations capabilities, and industry knowledge to invest in, and develop, select commodity infrastructure assets. Our strategically integrated platform has generated strong risk-adjusted returns for our investors since our formation.

Position Overview:

CCI is developing a leading-edge analytics platform, as staying at the forefront of data management and analytics is essential to our investment strategy. We are looking for motivated and detail-oriented Front Office Software Engineering Interns to join our Global Data Science & Technology team in our Stamford, CT office. This internship is ideal for technically skilled students with a strong interest in building quality software that directly impacts trading, analytics, and investment workflows. You'll collaborate closely with other Software Engineer's, Data Scientist's, and Commercial end users, contributing to our front office platform through hands-on development projects using Python, cloud technologies (AWS), APIs, and Snowflake.

Responsibilities:

  • Contribute to the development of front office software tools that support real-time trading, market data analytics, and visualization.
  • Work with the commercial trading team to optimize and re-engineer pricing models, decision tools, and trading workflows.
  • Build and enhance Python-based microservices and APIs for internal data access and operations automation.
  • Assist in building data visualization dashboards using libraries such as Streamlit, integrating commercial KPIs, price curves, and supply/demand analytics.
  • Participate in cloud-native application development using AWS services, including Kubernetes and Kafka.
  • Support automation of deployment processes using modern DevOps tools (e.g., Git, Docker, Helm, CI/CD pipelines).
  • Collaborate with the Data Science team to help integrate ML-driven analytics into front office workflows.

Qualifications:

  • Currently pursuing a Bachelor's or Master's degree in Computer Science, Engineering, Management Information Systems, or related technical field of study.
  • Expected graduation date of Winter 2027 or Spring/Summer 2028.
  • Strong programming experience in Python (preferred libraries: Pandas, NumPy, etc.)
  • Familiarity with version control tools (e.g., Git) and software development best practices.
  • Strong problem-solving abilities and an eagerness to learn about financial markets and trading systems.
  • Excellent communication skills and ability to work in a fast-paced, collaborative environment.Top of Form

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