Software Engineer, Full Stack (Python, Java, Rust, C#, C++)

Weekday AI

22h • $50 - $65

About The Position

This role is for one of our clients. Join a leading AI research organization's cutting-edge GenAI team and contribute to the development of next-generation AI models and applications. We are seeking talented Full-Stack Software Engineers with hands-on production experience across modern software ecosystems, including Python, Java, Rust, C#, C++, and TypeScript. In this role, you will build, integrate, and stress-test production-quality software that leverages advanced AI models. You will work closely with engineering leadership on fast-moving projects, adapt quickly to evolving requirements, and contribute working code with minimal ramp-up. This is a full-time opportunity requiring approximately 40 hours per week, primarily during weekdays.

Requirements

• 3+ years of professional experience building and deploying production software in a high-quality engineering environment.
• Strong production experience in at least one of Python, Java, Rust, C#, or C++, along with working proficiency in a second programming language.
• Hands-on full-stack development experience spanning: Backend services and APIs, React or another modern front-end framework, Relational or document databases, Cloud deployment and infrastructure.
• Experience designing, developing, testing, and deploying software end to end.
• Demonstrated ability to quickly understand unfamiliar codebases, development environments, and technical architectures.
• Strong problem-solving skills and the ability to work effectively in fast-changing technical environments.
• Demonstrable professional growth and increasing technical responsibility.
• Strong written and verbal communication skills, with the ability to explain complex technical decisions clearly.
• Ability to commit reliably to 40 hours per week during weekdays.

Nice To Haves

• Experience working with AI/ML systems, model APIs, developer tooling, evaluation infrastructure, or AI-powered applications is a plus, but strong software engineering fundamentals and full-stack production experience are the primary requirements.

Responsibilities

• Design, develop, and ship full-stack applications, backend services, internal tools, and integrations using technologies such as Python, Java, Rust, C#, C++, and TypeScript.
• Build software that exercises and integrates advanced AI model capabilities across end-to-end workflows.
• Integrate model APIs into production-ready applications, including supporting infrastructure such as tool interfaces, evaluation frameworks, monitoring, and telemetry.
• Develop scalable backend services and APIs while contributing to modern front-end applications.
• Investigate and troubleshoot model, application, and integration issues, documenting failure modes and technical findings clearly.
• Translate engineering observations into actionable feedback for research and engineering teams.
• Rapidly prototype solutions and deliver functional increments in environments with evolving requirements and limited initial specifications.
• Collaborate with engineering managers and fellow developers to maintain high standards for code quality, architecture, testing, and technical documentation.
• Work across unfamiliar systems and codebases, quickly identifying dependencies and implementing effective solutions.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed