Full-Stack Engineer

🕒 June 10

🌐 Brazil, Spain – Remote

🇧🇷 Brazil – Remote 🇪🇸 Spain – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 66%

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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Darkroom

WebsiteLinkedInAll Job Openings

51 - 200 employees

📣 Marketing

🤝 B2B

☁️ SaaS

Marketing • B2B • SaaS

Darkroom is a world-class growth marketing company specializing in services that span the entire customer journey. As the 385th fastest growing private company in America according to the Inc. 5000 in 2023, Darkroom focuses on maximizing ROI for its clients. They offer services such as Amazon Marketplace Management, Creative Services, Paid Media Management, Retention Marketing, and Website Optimization. With a strong emphasis on integrating finance, creativity, and performance into growth marketing strategies, Darkroom leverages data infrastructure and attribution to enhance advertising effectiveness and profitability. Their committed approach has created over $1 billion in attributable revenue for clients, making them a trusted partner for leading companies worldwide.

📋 Description

• Build and scale features end-to-end at the intersection of back-end and front-end systems • Design database schemas and React components optimized for scale and reliability • Build and maintain RESTful/GraphQL APIs, data pipelines, and distributed services in GCP • Integrate, prompt, and debug LLMs and generative AI tools • Own RAG or fine-tuning pipelines • Ensure front-end and back-end systems interoperate reliably and enforce contracts • Collaborate with product, research, design, and infrastructure teams to define requirements and ship production-grade code • Monitor performance, reliability, and security • Mentor junior engineers through code reviews, architecture reviews, and shared best practices • Help steer product and technical decisions and influence engineering tools, processes, standards, and hiring

🎯 Requirements

• 5+ years of professional software engineering experience with end-to-end ownership in a full-stack role • Deep expertise in Python, Node.js, React/TypeScript, and PostgreSQL • Hands-on experience with GCP, Docker/Kubernetes, and high-traffic systems • Proven experience integrating AI/ML models, including LLMs, NLP, and RAG, into production applications • Familiarity or strong interest in MCP servers • Exceptional problem-solving skills and a product mindset focused on UX, performance, and business impact • Attention to technical details and end-user experience • Nice to have: experience with multi-step or agentic AI workflows • Nice to have: background in AI infrastructure or tooling companies • Nice to have: contributions to open-source AI/ML projects • Ability to work 9 AM–5 PM EST; these hours are non-negotiable • English proficiency

🏖️ Benefits

• Unlimited PTO • Local holidays relevant to the employee's hub • Remote-first culture • Flexible parental leave • Growth and interdisciplinary development opportunities