Open Source Developer AI Tooling & LLMs for Builders
Stealth Startup
Stealth Startup in New York is seeking a passionate Open Source Developer to contribute to and maintain open-source projects and build innovative developer tools. Ideal for early-career engineers, this role offers a unique opportunity to work with cutting-edge AI technologies. Candidates should have proficiencies in Python and familiarity with Git and open-source workflows, as well as a desire to learn and grow in a collaborative environment. #J-18808-Ljbffr Stealth Startup
- We are looking for a passionate Open Source Developer who is excited about building in public, contributing... ...on cutting-edge technologies such as LLMs, AI tooling, and scalable backend systems. This... ...Good problem-solving skills and a builder mindset Nice to Have Contributions...Suggested
$152k - $240k
...spend effortlessly. Brex’s AI-native automation and... ...you with the tools, resources, and support... ...engineering is a craft, and builders become leaders.What you... ...systems, APIs, and data sources.Define evaluation frameworks... ...building with LLMs, agent frameworks, and...SuggestedWork at officeRemote workWork from home$60 - $85 per hour
...full-time hours. Ideal candidates should have strong experience with Go, unit testing, and open-source contributions. Responsibilities include writing unit tests, collaborating on AI projects, and improving language model workflows. Compensation is $60-$85/hour based on...SuggestedRemote jobFull timePart time- ...remote Ruby Engineer for AI Data Training, you will... ...experience using LLMs or AI coding assistants... ...experience with frameworks and tools such as Ruby on Rails,... ...: merged PRs in Ruby open‑source projects, experience... .... Key Responsibilities Develop AI Training Content: Create...SuggestedRemote jobHourly payContract workPart timeFreelance
$244k - $305k
The Language Tools team enables ~1,500 Datadog developers to build, test, and package millions of lines of Go, Python... ...CI environments. We use the Bazel open source build system as a foundation. The... ...observability and security platform for the AI era, providing businesses with...SuggestedWork at office$86.7k - $151.7k
AWS Developer Experience is looking for a Marketing Manager to own the... ...digital presence for the AWS Builder Loft program globally.... ...and efficiency. You leverage AI tools and automation to multiply your... ...registration conversion rates, email open/click rates, social media...InternshipLocal areaFlexible hoursDay shift- ...dbt are building the open data infrastructure that powers AI agents you can trust... ..., and Context Builder, the managed service... ...emphasize using no-nonsense tools and take great pride... ..., Java, SQL, dbt, LLMs (Claude, ChatGPT,... ...DockerContributions to open source AI or data projects...Full timeWork at officeRemote workShift work
- ...enterprises orchestrate AI-powered work.... ...-grade LLMs. Valued at $1.9B... ...smart, hardworking builders and scalers to join... ....* We are open to hiring for this... ...ll doDesign and develop robust, secure,... ...and modern open-source agentic frameworksPractical... ...AI developer tooling like Claude,...Full timeWork at officeLocal area
$204.5k - $267k
...Software Engineer (Open Level)New York, NY; Boston MAAbout... ...Bio is a tech and AI driven pharma company differentiated... ..., and biotechs to develop programs past clinical... ...build and deploy real tools. We need engineers who... ...capabilities.Use AI tools (LLMs, agentic coding systems,...Permanent employmentWork at officeLocal areaRelocation3 days per week$123k - $215.25k
...community through open source, our mission is to... ...American Express, AI is reshaping the future... ...will be a core builder responsible for... ...over context, invoke tools, take real actions... ...and open-source LLMs integrated into agentic... ...in AI or developer tooling.Depending...Visa sponsorship$123k - $215.25k
...ExpressDescriptionAt American Express, AI is reshaping the... ..., you will be a core builder responsible for... ...over context, invoke tools, take real actions,... ...and MLCommercial and open-source LLMs integrated into agentic... ...particularly in AI or developer tooling.About the TeamAt...$123k - $215.25k
...community through open source, our mission is to... ...American Express, AI is reshaping the future... ...will be a core builder responsible for... ...over context, invoke tools, take real actions... ...and open-source LLMs integrated into agentic... ...in AI or developer tooling.Experience...Visa sponsorship$90k - $198.5k
...out the best in you. We're builders touching over 20... ...buildAs a Forward Deployed AI Engineer, you will independently... ...engineering practices.Develop AI agents using LLMs, RAG, MCP, tool calling, structured outputs... ...in customer-facing roles.Open-source contributions, hackathons...Permanent employmentFull timeWork at officeWorldwideFlexible hours$140k - $200k
...by living on the frontier of AI Dollars & cents: $140-200k base... ...expert at using agentic coding tools to raise the quality and the... ...outcomes: part consultant, part builder, part closer, all trust.... ...standards BONUS Public work artifacts—open source, side projects, talks or...Flexible hours$103.75k - $174.75k
...community through open source, our mission is to... ...American Express, AI is reshaping the future... ...will be a hands-on builder contributing to the... ...expertise in LLMs, agentic systems, cloud... ...invoking cloud security tools, and performing... ...and human oversight.Develop AI agents that...Internship$225k - $300k
...matters. From frontier AI labs processing... ..., and legal. Our tools, Chandra, Surya,... ...GitHub stars and broad developer mindshare. We're... ...across our open-source repos and API. This... ...global community of builders. As a small and fast... ...building with LLMs and agentic workflows...$103.75k - $174.75k
...AI Engineer III Phoenix, AZ, United... ...community through open source, our mission is to... ...will be a hands-on builder contributing to the... ...depth in LLMs, agentic systems,... ...over context, call tools, and perform actions... ...related to AI or developer tooling. Employment...Internship- ...Senior AI Engineer New York City | Hybrid Onsite... ...to publishing and open sourcing as we go. You'll build... ...reflection, verification, tool use, routing,... .... How We Work Builder-first org: senior engineers... ...recent hands-on work with LLMs and generative AI. We...Full time
- ...Software Engineer to join the Auth0 team focused on the AI Agentic Experience. You will build developer tooling, demo apps, and tooling for secure, identity-... ..., production-grade solutions and contribute to open source projects. You will mentor engineers, influence engineering...
$90k - $198.5k
...out the best in you. We're builders touching over 20... ...As a Forward Deployed AI Engineer, you will independently... ...engineering practices. Develop AI agents using LLMs, RAG, MCP, tool calling, structured outputs... ...customer-facing roles. Open-source contributions, hackathons...Permanent employmentFull timeWork at officeWorldwideFlexible hours- ...Description Senior AI Engineer... ...time Focus: AI, LLMs, Clinical Reasoning... ...reasoning systems Develop AI architectures that... ...reflection, verification, tool use, routing,... ...with autonomy in a builder-first environment... ...patents, meaningful open-source contributions, or novel...Full time
$184.9k - $250.2k
...who wants to build AI-powered products that... ...This is a hands-on builder role with... ...growth — we invest in developing senior engineers toward... ...migrations, seeing your tools in action and... ...expect to work with LLMs, multi-agent frameworks... ..., code reviews, source control management,...InternshipImmediate startFlexible hours$200k - $240k
Traba is the AI operating layer for the industrial supply... ...the pipeline that sources, vets, matches, and places... ...infrastructure.Proven full-stack builder. You have a track record... ...experience integrating LLMs or agents into real product—prompting, tool wiring, evals. You've...Temporary workLocal areaShift work$160k - $200k
...Workflow Automation, Agent Builder, and operational... ...documentation, webinars, open source, research reports and morePartner... ...in the market and develop new integrations for... ..., and SLOs), using tools like Datadog, PagerDuty... ...security platform for the AI era, providing businesses...$141.9k - $190.3k
...organization of engineers, product developers, designers, technologists,... ...and Innovators. Creators and Builders. Entertainers and Engineers.... ...Engineer on the Build Tooling Software team within Disney Entertainment... ..., etcFamiliarity with AI tooling within the software development...Remote work$153k - $376k
...passionate creatives and builders on a mission to make... ...code, or iterating with AI. From idea to product,... ...payments infrastructure, developer platforms, or... ...automation, or internal tools development.Prior work... ...experience contributing to open source developer communities.Passion...Minimum wageFull timeLocal areaRemote workFlexible hours$165k - $242k
CoreWeave is The Essential Cloud for AI. Built for pioneers by pioneers,... ...a platform of technology, tools, and teams that enables innovators... ...for a software engineer to join our Source Control and Governance team within our Developer Experience group. In this role, you...Permanent employmentFull timeTemporary workCasual workWork at officeFlexible hours$200k - $300k
..., so it is everyone's job to make sure our developers have everything they need to do their jobs well.As a member of the AI Tools team, you will be responsible for increasing... ..., to recruiting and beyond. We value openness and transparency, and celebrate great ideas...Work at officeLocal areaImmediate start$141.9k - $190.3k
Job Posting Title:Senior Software Developer - Build Tooling DevelopmentReq ID:10142522Job Description:... ...Storytellers and Innovators. Creators and Builders. Entertainers and Engineers. We work... ..., CloudFormation, etcFamiliarity with AI tooling within the software...Full timeRemote work$147k - $202k
...Every Identity, from AI to HumanIdentity is the... ...stakes. We are looking for builders and owners who operate... ...platform designed by developers for developers. We... ...building the infrastructure, tooling, and developer... ...environmentsContribute to Open Source Projects, both within...Local areaWorldwideFlexible hours
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