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Braintrust

Open Source Engineer - Python

New York, NY · On-site +1

Care deeply about developer experience, from clean APIs and clear docs to thoughtful error handling ... You've contributed to popular open source projects, led SDK adoption at your organization, are ...

Pae

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by ... open for at least three days, with a closing date no earlier than three days after the original ...

Xora

Platform Director (Open Source)

State College, PA

$247K/yr

At Xora, we connect pioneering software developers in the AR/VR space and deliver an open source ... for mobile/ web. * Exceptional integrity, honesty, and trustworthiness. * Acts and thinks like an ...

OPEN SOURCE ENGINEERING LLC

Field Inspector

Mclean, VA · On-site

$24 - $30/hr

Field Inspector Washington Metropolitan Area (DC, MD, VA) Open Source Engineering, LLC (OSE) is ... Proficient with Microsoft Office and mobile technology for field documentation Requirements

CoreWeave

$165K - $242K/yr

If you're passionate about developer tools, thrive in ambiguity, enjoy solving challenging ... The Marimo core open source team develops and maintains the marimo open source notebook. Today ...

OPEN SOURCE ENGINEERING LLC

Field Inspector

Mclean, VA · On-site

$24 - $30/hr

Field Inspector Washington Metropolitan Area (DC, MD, VA) Open Source Engineering, LLC (OSE) is ... Proficient with Microsoft Office and mobile technology for field documentation Requirements

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How much do mobile open source developer jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for mobile open source developer in the United States is $55.01, according to ZipRecruiter salary data. Most workers in this role earn between $41.35 and $66.35 per hour, depending on experience, location, and employer.

What job makes $10,000 a month without a degree?

A Mobile Open Source Developer can potentially earn $10,000 or more per month through freelance projects, app sales, or consulting, especially with strong skills in mobile development, open source contributions, and a solid portfolio. Success often depends on experience, reputation, and the ability to secure high-paying clients or contracts without formal degrees.

What jobs will no longer exist in 2030?

As a Mobile Open Source Developer, roles focused on outdated or proprietary mobile platforms are likely to decline by 2030, with some traditional app development jobs being replaced by roles emphasizing open source tools and cross-platform frameworks. Automation, AI integration, and evolving technology standards will also shift job requirements, reducing demand for certain manual coding positions. However, roles involving open source collaboration, security, and innovative mobile solutions are expected to grow.

How to make $100,000 a year working from home?

A Mobile Open Source Developer can reach a $100,000 annual income by building a strong portfolio of open source projects, gaining expertise in popular mobile platforms, and freelancing or consulting for clients. Developing in-demand skills like cross-platform development, contributing to well-known projects, and establishing a professional online presence can help increase earning potential. Certifications and continuous learning also support higher-paying opportunities in remote mobile development roles.

How can I make 2000 a week working from home?

A Mobile Open Source Developer can earn $2000 a week by taking on freelance or contract projects, contributing to open source apps with paid sponsorships, or developing and selling their own mobile apps. Building a strong portfolio, gaining skills in popular frameworks, and marketing services on freelance platforms can help reach this income level.
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Mobile Open Source Developer jobs near you
Open Source Engineer - Python

Open Source Engineer - Python

Braintrust

New York, NY • On-site, Remote

Full-time

Medical, Dental, Vision

Posted 26 days ago

Job description

About the company
Braintrust is the AI observability platform. By connecting evals and observability in one workflow, Braintrust gives builders the visibility to understand how AI behaves in production and the tools to improve it.
Teams at Notion, Stripe, and Vercel use Braintrust to compare models, test prompts, and catch regressions - turning production data into better AI with every release.
About the Role
We're hiring engineers to build the open-source libraries that customers use to observe, understand, and optimize how AI operates inside their production applications. These SDKs are a critical part of Braintrust's platform. They power evaluation and observability pipelines across a wide range of environments, frameworks, and AI providers.
This role is ideal for engineers who are passionate about developer experience, API craftsmanship, and building fast, reliable, and idiomatic libraries. You'll own the full SDK lifecycle: design, implementation, release, documentation, and community support. Your work will be embedded in thousands of applications and help define how AI is adopted and operationalized across industries.
What You'll Do
  • Build elegant, idiomatic, and resilient SDKs that power Braintrust's LLM evaluation and AI observability platform.
  • Ensure our libraries are easy to use, efficient to run, and a delight to work with, prioritizing developer experience and performance.
  • Integrate with major AI providers, frameworks, and platforms our customers rely on, such as OpenAI, Anthropic, and Gemini.
  • Build tools and automation to improve testing, profiling and simplify release workflows.
  • Collaborate closely with backend, platform, and product teams to ensure a cohesive and polished developer experience.
  • Be a great community ambassador: talk with our users, understand their issues, help them get their fixes merged and have deep empathy for our users.
You Might Be a Fit If You:
  • Are customer-obsessed and passionate about solving real-world problems for developers.
  • Have deep expertise in Python and understand what it takes to build fast, idiomatic, and reliable libraries in that ecosystem.
  • Are proficient with the tooling needed to build robust SDKs, such as testing frameworks, profilers, CI/CD pipelines, and packaging systems.
  • Care deeply about developer experience, from clean APIs and clear docs to thoughtful error handling and backward compatibility.
  • Know how to wrap, patch, or extend existing frameworks and SDKs to inject observability and control without breaking developer workflows.
  • Have experience maintaining or contributing to production-grade open-source libraries, ideally used across multiple environments.
  • Bonus: You've contributed to popular open source projects, led SDK adoption at your organization, are familiar with tracing and observability tools like OpenTelemetry, or worked on tools in the LLM/AI ecosystem.
Benefits include
  • Medical, dental, and vision insurance
  • Daily lunch, snacks, and beverages
  • Flexible time off
  • Competitive salary and equity
  • AI Stipend
Equal opportunity
Braintrust is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

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