Product Engineer

Cosine is a fully agentic SWE that allows you to instantly work on every single ticket at once, asynchronously.

**Join Our Team

At Cosine, we're pioneering the integration of human reasoning into artificial

intelligence. As a member of our team, you'll be at the forefront of cutting-edge

technology, working to shape the future of AI with our groundbreaking synthetic data

generation and RFT techniques.**

Why Work With Us?

• Be part of a trailblazing company leading innovation in AI.

• Work alongside a dedicated team of experts passionate about AI and technology.

• Engage in challenging and rewarding work that makes a real impact on the

advancement of AI.

Responsibilities

On this team you will build end-user products (developer workflow tools) that use

Cosine's LLM and AI tech in order to augment developers’ capabilities for our users.

We're building tools for ourselves. We are our own customer as engineers so you should

be obsessed about the developer experience.

• Skills & Experience
• Experience building reactive applications (React, Vue, Rails, etc) that work

across multiple platforms and that are highly interactive

• Experience with NextJS and typescript
• Comfortable with back-end development
• Design back-end APIs
• Expose and use rest endpoints
• Experience with developer experience tools
• Worked on CI/CD pipelines
• Worked with containerization
• Experience with testing code
• Unit testing
• Integration testing
• Test performance optimization
• Programming languages
• Experience in either React, Vue, Typescript (we're open to people from

other languages)

• Knowledge of Node.js, Python or Go is a plus Other relevant tools/experience
• DevOps: Git, AWS, Docker, PNPM, GitHub Actions
• Monitoring and alerting (Grafana, Axiom)
• Experience with feature flagging mechanisms (Posthog)

Requirements

• Minimum of 4 years of professional experience in software engineering. (Looking

for mid to senior level candidates)

• Proven expertise and expertise in the programming language of your choice.

• Familiarity with AI technologies such as OpenAI, ChatGPT, Anthropic, ASTs,

Github, Knowledge Graphs, Retrieval Augmented Generation, and Fine Tuning.

• Strong problem-solving skills and the ability to work e]ectively in a collaborative

team environment.

• Excellent communication and interpersonal skills.