TestBox · 4 months ago
Senior Software Engineer, Applied AI
San Francisco, CA
Full-time
Onsite
Senior Level
$180K/yr - $180K/yr
5+ years expTestBox is a fast-growing startup focused on transforming how software is bought and sold through an innovative platform. They are seeking a Senior Software Engineer to design and implement AI-driven features that enhance internal development and user experience, playing a crucial role in building intelligent systems for their platform.
Artificial Intelligence (AI)Software
Responsibilities
Build LLM-powered services that automate internal development workflows and accelerate complex integration tasks
Create user-facing features that translate natural language commands into complex platform actions, making our product more accessible and powerful
Design and implement intelligent services that allow users to interact with, clean, and enrich their datasets using conversational interfaces
Collaborate closely with data and platform engineers to ensure our core infrastructure is optimized for AI and ML workloads
Own the end-to-end lifecycle of our AI services, from prototyping and model selection to building scalable, production-ready systems
Stay at the forefront of the rapidly evolving AI/LLM landscape, continuously identifying new opportunities to apply cutting-edge technology to our product
Qualification
Required
You are a pragmatic and product-minded engineer who is driven to apply AI to solve concrete business and user problems
You are a strong software engineer first and foremost, with a passion for building robust, well-tested, and scalable systems
You are a 'full-stack' AI practitioner, comfortable working with everything from data processing and prompt engineering to model integration and API design
You are highly collaborative and thrive on working with data engineers, backend engineers, and product designers to build cohesive features
You take initiative and see projects through to completion and are excited by the challenge of building a new category of intelligent developer and user tools
Preferred
5–7+ years of experience in software engineering, with a demonstrable focus on building AI or ML-powered features
Hands-on experience building with Large Language Models (LLMs) and their ecosystems (e.g., OpenAI, Anthropic, open-source models)
Experience with modern AI development frameworks and tools
Proficiency in a modern backend language, preferably Python
Experience building and deploying services on cloud infrastructure (e.g., AWS, GCP)
Bonus: Experience with Retrieval-Augmented Generation (RAG) and other advanced LLM patterns
Bonus: Experience building developer tools or services that involve code generation
Bonus: A strong background in data engineering or working with complex data pipelines
Benefits
Generous equity package for meaningful ownership.
Prioritization of your professional growth, with dedicated career development support.
Flexible, unlimited PTO with a minimum expectation for recharge.
Mental Health benefits.
Fitness allowances.
Learning allowances.
Remote and office setup allowances to ensure productive and comfortable working environments.
Company
TestBox
TestBox create AI-powered demo and POC environments with custom data that mirrors your prospect's business, closing deals faster.
11-50 employees
Funding
Current Stage
Early StageTotal Funding
$24.15MKey Investors
Felicis
2025-10-28Series Unknown· $11.45M
2022-06-08Seed· $10M
2021-05-12Seed· $2.7M
Leadership Team
Sam Senior
Founder & CEO
Recent News
Alumni Ventures
2023-08-21
2022-06-11
Company data provided by crunchbase