Senior Backend Engineer – AI

Trust Lab

Backend / Systems Engineer building scalable backend architecture for diverse AI use cases. Collaborating with AI engineers and product teams to enhance efficiency and reliability in mission-critical systems.

Posted 6/1/2026full-timeSan Mateo • California • 🇺🇸 United StatesSenior💰 $150,000 - $220,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudGoJavaKubernetesPython

About the role

Key responsibilities & impact

Design and build extensible backend systems that support flexible configurations for different customers and content types.
Develop infrastructure that interfaces cleanly with LLMs, enabling prompt engineering, context injection, and modular evaluation workflows.
Build tooling and platforms that enable fast iteration by AI engineers and analysts, including declarative pipelines, parameterized jobs, and reproducible experiments.
Prioritize ease of deployment, integration, and testing, both for internal teams and external partners.
Collaborate closely with product, data, and policy teams to translate nuanced safety needs into scalable, maintainable software systems.

Requirements

What you’ll need

5+ years of experience in backend systems or infrastructure engineering.
Strong software engineering skills in Python, Go, Java, or equivalent.
Experience designing scalable APIs, backend systems and data pipelines.
Familiarity with LLM-based systems (e.g., prompt management, context formatting, batch inference, prompt-tuning workflows).
Strong understanding of cloud-native infrastructure (e.g., AWS, Lambda, Kubernetes, CI/CD pipelines).
Passion for building systems that unlock velocity and experimentation for cross-functional teams.

Benefits

Comp & perks

competitive compensation
equity
comprehensive benefits
hybrid in-office work environment

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

backend systemsinfrastructure engineeringPythonGoJavaAPIsdata pipelinesLLM-based systemscloud-native infrastructureCI/CD pipelines

Soft Skills

collaborationcommunicationproblem-solvingadaptabilitypassion for experimentation