Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer
San Francisco, CA · On-site
$300K/yr
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer
San Francisco, CA · On-site
$300K/yr
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer
$144.23/hr
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer
$144.23/hr
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer
$144.23/hr
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer
$144.23/hr
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...
Junior Software Engineer Intern information
See Berkeley, CA salary details
$16.48 - $19.29
5% of jobs
$19.29 - $22.10
7% of jobs
$24.85 is the 25th percentile. Wages below this are outliers.
$22.10 - $24.91
13% of jobs
$24.91 - $27.72
9% of jobs
The median wage is $29.98 / hr.
$27.72 - $30.53
19% of jobs
$30.53 - $33.34
18% of jobs
$34.04 is the 75th percentile. Wages above this are outliers.
$33.34 - $36.15
14% of jobs
$36.15 - $38.96
7% of jobs
$38.96 - $41.77
4% of jobs
$41.77 - $44.58
0% of jobs
$44.58 - $47.39
3% of jobs
$16
$31
$47
How much do junior software engineer intern jobs pay per hour?
As of Sep 5, 2026, the average hourly pay for junior software engineer intern in Berkeley, CA is $31.12, according to ZipRecruiter salary data. Most workers in this role earn between $25.29 and $35.34 per hour, depending on experience, location, and employer.
What does a junior software engineer intern do?
A Junior Software Engineer Intern assists with coding, testing, and debugging software under the guidance of more experienced engineers. They often work on small features or bug fixes, attend team meetings, and learn about the company's development processes. Interns gain hands-on experience with programming languages, development tools, and real-world projects, while building foundational skills for a future career in software engineering.
What are the key skills and qualifications needed to thrive as a junior software engineer intern?
To thrive as a Junior Software Engineer Intern, you need a foundational understanding of programming languages (such as Python, Java, or C++), basic software development principles, and enrollment in or completion of a relevant degree program. Familiarity with version control systems like Git, integrated development environments (IDEs), and issue-tracking tools is highly valuable. Strong problem-solving skills, eagerness to learn, and effective teamwork and communication abilities set standout interns apart. These skills and qualities enable interns to quickly adapt, contribute to projects, and grow within dynamic software development teams.
What types of projects can a junior software engineer intern expect to work on during their internship?
As a Junior Software Engineer Intern, you will typically be assigned to real-world projects that align with the team's current goals, such as developing new features, fixing bugs, or assisting with code reviews. Interns often collaborate closely with senior engineers and participate in agile sprints, gaining exposure to the full software development lifecycle. These projects are designed to help you build foundational programming skills, familiarize yourself with company tools and workflows, and contribute meaningful work to the organization. Regular feedback and mentorship are common, supporting your technical and professional growth throughout the internship.
What are popular job titles related to Junior Software Engineer Intern jobs in Berkeley, CA?
For Junior Software Engineer Intern jobs in Berkeley, CA, the most frequently searched job titles are:
What cities near Berkeley, CA are hiring for Junior Software Engineer Intern jobs?
Cities near Berkeley, CA with the most Junior Software Engineer Intern job openings:
Full-time
Medical, Dental, Vision, Life
Re-posted 18 days ago
Key responsibilities
Design, build, and refine reinforcement learning tasks, including creating prompts, environments, and automated graders.
Own the full lifecycle of tasks, from idea generation to implementation, testing, analysis, and iteration.
Evaluate the output of coding agents, identify failure points, and analyze model behavior to improve task rigor and fairness.
Job description
About Mechanize
Mechanize builds reinforcement learning environments that frontier AI labs use to train and evaluate their coding models. Learn more at mechanize.work.
Why the work matters
AI models have gotten good at narrow coding tasks but still fail at the complex, judgment-heavy parts of software engineering. We build the environments that expose those failures and help models improve.
What you'll do
You'll design, build, and refine RL tasks. Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading infrastructure, running frontier models against the task, analyzing where and why they fail, and iterating until the task is rigorous and fair.
Coming up with good task ideas requires being clever: finding situations where a frontier model will fail in interesting ways, which means seeing gaps that the model itself doesn't see. You will use coding agents heavily, and a large part of the job is directing them well, evaluating their output, and knowing when they are failing in subtle ways.
What makes someone good at this
Strong technical fundamentals combined with an intuition for AI model behavior. You need to anticipate where a model will take shortcuts, distinguish genuine capability gaps from grader issues, and understand how a model will interpret a prompt. Most engineers significantly underestimate what frontier coding agents can already do; candidates who have spent significant time working with them will have a real head start.
Good fit if you:
-
Have just graduated or are about to graduate
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Can code in Python
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Are confident working independently
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Are motivated by problems that require both technical skill and creative cleverness
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No prior ML or AI experience required
We're happy to hire candidates who are very capable, even if they have no prior professional software experience.
Probably not a good fit if you:
-
Want a product engineering role building features for end users
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Prefer a highly collaborative team environment with shared ownership
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Want extensive structured mentorship
This is independent, high-ownership work. You own your tasks from start to finish, with regular check-ins and feedback. Strong performers are recognized and promoted quickly. Benefits include health, dental, vision, and life insurance. Applying takes less than one minute.
Interview process: https://www.mechanize.work/how-our-interview-process-works
Learn more about the work: https://www.mechanize.work/what-working-here-is-like
About Mechanize. ~20 person team in San Francisco. Backed by Patrick Collison, Nat Friedman, Daniel Gross, Jeff Dean, Dwarkesh Patel, and Sholto Douglas. Featured in the New York Times, the Dwarkesh Podcast and Hard Fork.