Mid-Level Software Engineer - AI-Driven, Scalable Systems

rebuildmanufacturing; Los Angeles (CA); On-site; USD 112,000 - 167,000; Full time

Job summary

Re:Build, based in Los Angeles, CA, seeks a Mid-Level Software Engineer to design scalable software and implement AI-enhanced solutions. You will collaborate with cross-functional teams to ship features end-to-end, review code, and champion best practices in testing and observability.

Ideal candidates have 3+ years of production experience, strong knowledge of C#, JavaScript, Python, and AWS, plus REST/GraphQL APIs and Agile experience. Travel quarterly to team sites is expected.

Qualifications

• 3+ years' experience writing software in production environments.
• Experience with multiple languages and software stacks (Web, Windows Desktop, Cloud, IoT).
• Experience with REST and GraphQL APIs.
• Experience with AWS cloud services and infrastructure.
• Experience using AI-assisted development tools in a professional setting.
• Experience with Agile methodologies and fast-paced development.
• Hands-on experience with Git and collaborative workflows.
• Fluency in written and spoken English.

Responsibilities

• Contribute to software design and architecture for scalable systems.
• Develop and enhance new features with maintainable code.
• Identify and resolve bugs, optimize performance.
• Use AI-powered tools to accelerate delivery while preserving quality.
• Write and maintain automated tests for reliable releases.
• Participate in code reviews and follow coding guidelines.
• Collaborate with QA, Product Management, and DevOps across teams.
• Contribute to sprint planning, estimation, and technical documentation.
• Adhere to internal guidelines and company software standards.

Skills

C#

JavaScript

Python

SQL

Software design patterns

REST APIs

GraphQL

Agile

English fluency

Problem solving

Git

Education

Bachelor's degree in Computer Science or Software Engineering

Tools

AWS

Claude Code

CI/CD tooling

Git (version control)

Job description

Re:Build, based in Los Angeles, CA, seeks a Mid-Level Software Engineer to design scalable software and implement AI-enhanced solutions. You will collaborate with cross-functional teams to ship features end-to-end, review code, and champion best practices in testing and observability.

Ideal candidates have 3+ years of production experience, strong knowledge of C#, JavaScript, Python, and AWS, plus REST/GraphQL APIs and Agile experience. Travel quarterly to team sites is expected.