Full-Stack Software Engineer

🕒 July 1

🏄 California – Remote

🏄 California – Remote

⏰ Full Time

🟢 Junior

🟡 Mid-level

🧑‍💻 Full-stack Engineer

👻 Ghost score 60%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Concentrate AI

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2025

🤖 Artificial Intelligence

☁️ SaaS

🏢 Enterprise

Artificial Intelligence • SaaS • Enterprise

Concentrate AI is a SaaS platform that provides unified API access, orchestration, and governance for large language models (LLMs). It enables engineering teams to route requests across multiple model providers, apply least-cost routing, caching, and spend management, and gain unified analytics, logging, and billing without vendor lock-in. The platform also offers compliance and security features—data redaction, RBAC, auditing, and SSO—so finance, compliance, and engineering leadership can control costs, enforce guardrails, and maintain observability across all AI usage.

📋 Description

• Design and implement full-stack features using modern TypeScript across the frontend and backend • Architect, build, and maintain robust RESTful APIs with proper authentication, validation, and error handling • Maintain high engineering standards through comprehensive testing, including unit, integration, and end-to-end tests • Containerize and deploy services using Docker and CI/CD pipelines • Collaborate closely with the founding team on product direction, architecture, and technical strategy • Contribute to scalable, maintainable system architecture in a fast-moving startup environment

🎯 Requirements

• 2+ years of experience • Strong proficiency with TypeScript and Node.js • Experience building production-grade frontends with React; Next.js preferred • Familiarity with modern frontend tooling, such as Tailwind and component libraries • Backend development experience with frameworks like Fastify or similar • Solid understanding of PostgreSQL, including schema design and query performance • Familiarity with Docker, CI/CD workflows, and cloud deployment environments • Experience implementing secure authentication flows, such as JWT or OAuth • Strong testing discipline — you write tests as part of building features, not after the fact

🏖️ Benefits

• Competitive salary • Early-stage equity • Opportunity to influence both our product and culture