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Mobile Open Source Developer Jobs in Maine (NOW HIRING)

Senior AI/ML Engineer

Lisbon, ME ยท On-site

$98K - $135K/yr

... DevOps Modernization. Notable customers include GE, Cisco, Genentech, Electronic Arts, Cox ... Contributions to open-source AI or distributed-systems projects. Why PagerDuty At PagerDuty, AI it ...

iOS Engineer -Remote

Lewiston, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Lewiston, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Augusta, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Portland, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Biddeford, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Auburn, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Portland, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Bangor, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Augusta, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Auburn, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

South Portland, ME ยท On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Biddeford, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

South Portland, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

iOS Engineer -Remote

Bangor, ME ยท Remote

$61.63 - $88.47/hr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build ... for our job openings. We encourage all candidates who share a passion for growing the world ...

Showing results 21-40

Mobile Open Source Developer information

Infographic showing various Mobile Open Source Developer job openings in Maine as of June 2026, with employment types broken down into 1% As Needed, 89% Full Time, 7% Part Time, and 3% Contract. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution.

AI Agent Trajectory Annotator and Reviewer

Biddeford, ME โ€ข On-site

$20 - $30/hr

Full-time

Posted 12 days ago


Job description

Type: Contract, hourly

Location: Remote

Hours: 20โ€“30 per week

Pay: $20โ€“30/hour, based on experience and language coverage

Start: Immediate

ABOUT THE ROLE

We evaluate how well advanced AI coding agents solve real engineering problems. An agent is given a real open source codebase inside a container and a hard task, then works on its own for 80 to 250 steps. A trajectory is the full record of that run โ€” every command, result, and decision.

You will do two jobs, and you should expect either on any given day.

โ€ขAnnotate โ€” Read a trajectory nobody has looked at yet and judge it step by step.

โ€ข Review โ€” Take an existing annotation, written by our AI tooling or another person, and confirm, correct, or reject it.

TASKS YOU'LL SEE

โ€ข Feature build โ€” Add a working feature to a live library without breaking anything that already worked.

โ€ข Rebuild โ€” Work out what a compiled tool does by running it, then rebuild it to match its output, exit codes, and file effects.

โ€ข Bug hunt โ€” Find and fix twenty undocumented bugs across a dozen files with no test suite, then record what caused them.

Mostly Python and Go, with some Rust, C, and Ct+. A trajectory runs about 100 steps.

WHAT YOU JUDGE IN A TRAJECTORY

โ€ข Was the command right for the state the environment was actually in?

โ€ข Did the agent read the previous output correctly?

โ€ข Was the step wrong, or only inefficient โ€” these are scored differently.

โ€ข Where did the run first go off course โ€” usually earlier than where it visibly broke.

โ€ข Did the agent notice its own mistake and recover, or keep building on a false assumption?

โ€ข Did it game the grader instead of solving the task (e.g., weakening a test or hardcoding an expected value)?

WHAT WE NEED FROM YOU

โ€ข Experience โ€” 2+ years in software engineering, DevOps, or site reliability, with real debugging in real codebases.

โ€ข Languages โ€” Strong in Python or Go, and able to read a language you've never used.

โ€ข Linux โ€” Comfortable with logs, running processes, build failures, and containers.

โ€ข Workflow โ€” Everyday Git, diffs, pull requests, and issue tracking.

โ€ข Debugging โ€” Able to work with no test suite and no error message pointing at the cause.

โ€ข Focus โ€” Able to hold context across a long run, because step 74 can depend on step 12.

โ€ข Writing โ€” Clear English, since every judgement needs an explanation another engineer can check.