Senior Principal Software Engineer (Python) – Founding Engineer - Seattle

Solvin AI, Inc.; United States; On-site; USD 180,000 - 260,000; Full time

Benefits offered by this job

Foundational impact

Significant equity

Cutting-edge AI technology

Direct influence

Job summary

Solvin AI, Inc. in the United States is seeking a Founding Engineer to design, build, and deploy the foundational elements of our product, moving from concept to a production-ready MVP and beyond. You will work in a fast-paced environment where your contributions are visible from day one.

You will own core components, write scalable Python code, and help shape the technical roadmap while collaborating closely with the founders and mentoring future engineers.

Qualifications

• 10+ years of software development experience.
• At least 4 years of Python development.
• 1 year hands-on experience building generative AI technologies and agentic systems utilizing LLMs and frameworks like LangChain or LlamaIndex.
• Proven expertise in backend development and production systems.
• Self-starter capable of thriving in a fast-paced startup.

Responsibilities

• Take ownership of significant parts of our system, architecting and building our core product from the ground up.
• Write clean, high-performance, and scalable code, primarily in Python.
• Collaborate closely with the founders to define and iterate on the product roadmap and technical strategy.
• Design, build, and maintain the infrastructure for our AI and machine learning models.
• Establish and champion best practices for software development, including testing, CI/CD, and code reviews.
• Contribute to all phases of the product development lifecycle, from ideation and design to implementation and launch.
• Help shape our engineering culture and mentor future team members as we grow.

Skills

Backend development

Python

Production systems

Independent / self-starter

Education

Bachelor's degree in Computer Science

Master's degree or PhD considered a plus

Tools

LangChain

LlamaIndex

AWS

GCP

Azure

Kubernetes

TypeScript

Java

C++

Job description

Job description

About Us

We are a funded, early-stage AI startup operating in stealth mode.
We are building Solvin, the world’s first fully autonomous AI teammate that independently fixes bugs end-to-end, freeing developers to focus on features and innovation. Unlike existing coding assistants that require constant developer supervision, Solvin operates as an autonomous virtual engineering team member. Powered by a novel multi-agent operating system, Solvin works in the background to transparently handle the entire bug lifecycle. We have designed our platform from the ground up for enterprise environments, with a deep focus on security, observability, and fine-grained control.

The Role

As a Founding Engineer, you will be a cornerstone of our technical team. You will have a pivotal role in designing, building, and deploying the foundational elements of our product. We're seeking a passionate and experienced engineer who is excited by the challenge of building a product from its initial concept to a production-ready MVP and beyond. You will work in a dynamic, fast-paced environment where your contributions will be visible and impactful from day one. This role requires a blend of strong technical expertise, a product-oriented mindset, and the ability to thrive in the ambiguity of an early-stage startup.

What You'll Do

• Take ownership of significant parts of our system, architecting and building our core product from the ground up.

• Write clean, high-performance, and scalable code, primarily in Python.

• Collaborate closely with the founders to define and iterate on the product roadmap and technical strategy.

• Design, build, and maintain the infrastructure for our AI and machine learning models.

• Establish and champion best practices for software development, including testing, CI/CD, and code reviews.

• Contribute to all phases of the product development lifecycle, from ideation and design to implementation and launch.

• Help shape our engineering culture and, as we grow, mentor and guide future team members.

What We're Looking For (Qualifications)

• A seasoned engineer with 10+ years of software development experience.

• At least 4 years of professional experience in Python development.

• A minimum of 1 year of hands-on experience building generative AI technologies and agentic systems utilizing LLMs and frameworks like LangChain or LlamaIndex.

• Proven expertise in backend development and experience shipping and maintaining production systems.

• A self-starter with the ability to work independently and navigate the challenges of a fast-paced startup environment.

Bonus Points (Advantageous Skills)

• A strong background in cloud computing (AWS, GCP, or Azure) and Kubernetes.

• Proficiency in other programming languages such as Java, C++, or TypeScript.

• Familiarity with Python build systems and packaging.

• A Bachelor's degree in Computer Science. A Master's degree or PhD is a strong plus.

Why Join Us

• Foundational Impact: You will be more than just an early employee; you'll be a true partner in building our company and culture.

• Significant Equity: We offer a generous equity stake, ensuring that you share in the success you help create.

• Cutting-Edge Technology: Work at the forefront of AI and solve challenging problems with a real-world impact.

• Direct Influence: Your ideas and decisions will directly shape the future of our product and company.