Full Stack Intern Jobs in San Ramon, CA (NOW HIRING)

CSBio is a peptide contract manufacturing founded in 1993. Our initial products were a complete line of automated synthesizers for manufacturing and process development, with a focus on cGMP production. In 1994, we opened our custom peptide facility and began producing high quality compounds for research organizations and pharmaceutical companies worldwide. In 2004, we opened our peptide production facility in Menlo Park, CA and in 2014, we expanded our production capability through the addition of a new, state of the art building dedicated to cGMP peptide production. In 2017, we passed a FDA inspection and were recommended to be approved for commercial drug substance manufacturing. In 2023, we added additional cGMP clinical production capacity in Milpitas, CA.

Position Summary

Are you a software engineering self-starter that can figure things out and is interested in building out and implementing AI relevant tools into an operational workflow?

CSBio is a leading biotech company in the peptide industry, and for over 30 years has been providing pharmaceutical instrumentation to biotech, pharmaceutical, and academic researchers.

We are looking for a highly motivated AI Software Engineering Intern to help build and expand our internal AI tool used for inventory management, purchasing optimization, and manufacturing decision support. This role is ideal for a recent BS graduate who is resourceful, independent, and excited to build full-stack AI features with minimal guidance.

You will be working directly with leadership and internal stakeholders. We need someone who can learn fast, troubleshoot on their own, and embrace a "vibe coding" approach: figuring things out through exploration, iteration, and creative problem-solving.

Only local candidates who have graduated with a Bachelor's degree in Computer Science or Software Engineering and can commit to a full time on-site role for 3 months will be considered. This is a fully onsite role, 5 days in office at our Menlo Park OR Milpitas Location.

Job responsibilities include the following:

• Work with leadership and internal stakeholders to refine requirements and translate ambiguous goals into working code. Refining requirements and understanding exactly how the data structure is used out of our manufacturing system and API will be critical.
• Build new features for our internal AI platform using Python, Streamlit, Claude Code, and Codex.
• Integrate, debug, and optimize data workflows using the MISys Manufacturing REST API and our Bronze-Silver-Gold data architecture.
• Develop clean, functional pages for inventory visibility, purchasing logic, and AI-generated insights.
• Troubleshoot issues end-to-end-including data extraction, caching, errors, and deployment-independently.
• Iterate rapidly: quickly prototype ideas, test, refine, and ship features.

If you want an internship where you build real software, operate independently, and ship features that impact manufacturing operations immediately, this is it. You'll learn how to combine AI, data engineering, and real-world operations into a production tool that the company uses every day.

Requirements

• BS degree in Computer Science, Software Engineering, Data Science, or related field.
• Comfortable working solo in a fast-moving, ambiguity-heavy environment.
• Ability to self-teach, experiment, vibe code, and "figure it out" without step-by-step instructions. This work is to build out an internal tool and not to work on our product, as such there will be no internal software engineering team to support you.
• Nice to haves:
• Python skills and familiarity with web app development (Streamlit preferred).
• Experience working with APIs, JSON, and data manipulation in Python.
• Experience with OpenAI API or other LLM/AI tools
• Exposure to manufacturing, ERP/MRP systems, or supply chain systems

Benefits

• Medical, dental, and vision insurance (Kaiser HMO or BlueShield PPO. Employer pays 90% for Employee and 75% for Employee's family; Dental: Aetna Dental, Delta Dental, Guardian Dental, MetLife Dental. Vision: VSP and Aetna EyeMed)
• 401k 10% 1:1 match
• PTO policy. 10 days PTO
• Companywide paid holiday during: Week of July 4, Thanksgiving (2 days), Week of December 25Basic life ($20,000 paid by company) and supplemental life insurance (optional supplemental).
• Disability insurance 50% standard employer paid.
• Carpool, clean air vehicle, and cell phone reimbursement
• Employee rewards and recognition program
• Company organized social events
• Quarterly sponsored team building activities