Open Source Engineer - Java

San Francisco, California, United States

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Not SpecifiedCompensation

Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level

Full TimeJob Type

UnknownVisa

AI, AI & Machine Learning, Software DevelopmentIndustries

Requirements

Candidates should have deep expertise in Java and be proficient with SDK building tools such as testing frameworks, profilers, CI/CD pipelines, and packaging systems. Experience maintaining or contributing to production-grade open-source libraries is required, and familiarity with tracing and observability tools or the LLM/AI ecosystem is a plus.

Responsibilities

The Open Source Engineer will build elegant, idiomatic, and resilient SDKs for the LLM evaluation and AI observability platform, prioritizing developer experience and performance. Responsibilities include integrating with major AI providers, building tools for testing and release automation, collaborating with internal teams, and engaging with the user community to understand and address their issues.

Skills

Java

Open Source

SDKs

API design

Developer Experience

Testing

Performance Optimization

Community Support

LLM

Observability

OpenAI

Anthropic

Gemini

Braintrust

Talent marketplace connecting tech professionals with businesses

About Braintrust

Braintrust connects highly skilled tech professionals with businesses looking for their expertise in a talent marketplace. The platform charges a low 15% fee, significantly less than traditional staffing agencies, allowing companies to maximize their budgets. Using advanced technology, Braintrust matches businesses with the top five candidates for their projects within 48 hours, streamlining the hiring process. The goal is to create a transparent and efficient platform that benefits both businesses and tech professionals.

San Francisco, CaliforniaHeadquarters

2018Year Founded

$125.5MTotal Funding

LATE_VCCompany Stage

Consulting, AI & Machine LearningIndustries

201-500Employees

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

Competitive salary and equity

Phone/Internet Stipend

Risks

Increased competition from blockchain-based platforms could erode Braintrust's market share.

Cryptocurrency market volatility may impact the value of BTRST tokens and user satisfaction.

Regulatory scrutiny on blockchain transactions could pose compliance challenges for Braintrust.

Differentiation

Braintrust offers a blockchain-powered freelancer marketplace, reducing costs by eliminating middlemen.

The platform charges a flat 10% project fee, allowing talent to keep 100% revenue.

Braintrust's AI matches businesses with top professionals within 48 hours, streamlining hiring.

Upsides

AI-driven recruitment tools like AIR align with growing trends in hiring technology.

Crypto payment integration enhances Braintrust's appeal in the freelance marketplace.

Partnership with Behance expands Braintrust's reach in the creative community.

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