Solutions Architect

Stepfun; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

StepFun is seeking a hands-on Solutions Architect to work with our US sales team on client‑facing engagements. You will own the full pre‑sales cycle—from discovery to live demos, POC delivery, and basic integration—helping close deals and drive revenue.

You will translate business needs into technical architectures using LLMs, AI Agents, and multimodal models, deliver demos, write integration code, and collaborate with engineering and product to ensure viable, differentiated solutions.

Qualifications

• Bachelor's degree in CS/AI/SE or related field.
• 2+ years in solutions architecture or technical pre-sales within AI/cloud computing.
• Hands-on experience shipping LLM projects to production.
• Bonus: SA experience at a major cloud provider or AI startup.

Responsibilities

• Own pre-sales technical cycle from discovery to production handoff.
• Design solutions and live demos for clients.
• Deliver POCs, write integration code, tune prompts, and build knowledge bases.

Skills

Prompt engineering

API integration

RAG

Agent architecture

Hands-on coding

Pre-sales experience

Education

Bachelor's degree in Computer Science / AI / Software Engineering

Tools

LLMs

AI Agents

Multimodal models

Job description

About the Role

StepFun is looking for a hands‑on Solutions Architect to work closely with our US sales team on client‑facing technical engagements. You will own the full pre‑sales technical cycle — client discovery, solution design, live demos, POC delivery, and basic integration — partnering with sales to close deals and drive revenue.

What You'll Do

Industry Solution Design

• Deeply understand client business pain points and translate StepFun's core capabilities — LLMs, AI Agents, multimodal models — into competitive commercial solutions
• Independently assess technical feasibility, cost, delivery timeline, and client ROI, ensuring every proposal is commercially viable and differentiated in the market

Client Technical Engagement & Pre‑Sales Support

• Serve as the primary technical contact throughout the sales cycle, answering questions on LLM implementation, architecture fit, custom requirements, and technical bottlenecks
• Translate ambiguous business needs into standardized, actionable technical architecture proposals

POC Delivery & Hands‑On Execution

• Own live product demos and end-to‑end POC setup, testing, and validation
• Write basic integration code, optimize prompt engineering, debug API calls, build RAG knowledge bases, and configure Agent workflows — resolving architecture, performance, and compatibility issues to ensure successful POC outcomes

Full‑Cycle Project Ownership & Deal Closure

• Guide AI projects from first technical conversation through POC validation, solution sign‑off, and production handoff
• Identify and mitigate technical risks, partner with internal engineering and product teams to resolve delivery blockers, and collaborate with sales to accelerate deal closure

Market Feedback & Product Loop

• Synthesize on‑ground customer needs, industry pain points, and competitive insights into regular feedback reports
• Feed insights back into StepFun's LLM platform, Agent framework, and product roadmap — keeping product capabilities aligned with real commercial use cases

What We're Looking For

• Bachelor's degree or above in Computer Science, AI, Software Engineering, or a related technical field
• 2+ years of experience in solutions architecture or technical pre‑sales within AI / cloud computing
• Bonus: prior SA experience at a major cloud provider, or technical pre‑sales at an AI startup; hands‑on experience shipping commercial LLM projects to production is a plus
• Strong command of the LLM ecosystem: prompt engineering, API integration, RAG, and Agent architecture
• Hands‑on coding or vibe‑coding ability — comfortable building and tuning demos and POCs independently