WHY JOIN US

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

ABOUT THE ROLE

We are looking for a Senior Full Stack Engineer to own the build-out of AI usage dashboards, billing logic, and financial insights across a founder‑led product. You’ll work across Python, Node.js, React, and PostgreSQL — integrating Azure billing data, designing APIs, and shipping data‑heavy UI in a low‑process, high‑ownership environment. A strong fit for engineers who are comfortable with incomplete requirements and want direct influence over product and architecture.

WHAT YOU WILL DO

- Own the implementation and integration of existing product components, including AI usage dashboards and advisor insights
- Design and build backend functionality to support billing rules, chargeback logic, and ROI calculation
- Integrate external billing data sources, including Microsoft Azure billing systems
- Build and evolve APIs and data pipelines that translate raw billing data into financial insights
- Implement frontend functionality for metrics, dashboards, and data‑heavy UI views
- Make architectural decisions focused on maintainability and speed
- Collaborate with founders and product stakeholders in a low‑process environment
- Ensure smooth deployment and delivery workflows using Vercel
- Improve AI‑driven development workflows using tools like Claude or similar LLMs
- Design systems with strong guarantees around data integrity, auditability, and financial accuracy
- Identify technical gaps, risks, and architectural improvements and drive solutions proactively

MUST HAVES





- 6+ years of experience in full‑stack development
- Strong experience with Python and Node.js in production environments
- Experience designing and working with PostgreSQL schemas and data models
- Experience building frontend applications with React or similar frameworks
- Experience with AWS services in production
- Experience using AI tools such as Claude, GPT, or similar in development workflows
- Experience integrating third‑party APIs , especially billing or usage‑based systems
- Ability to work with incomplete requirements and build solutions
- Comfortable in early‑stage product environments
- Professional working proficiency in English
- Experience integrating frontend tests into CI/CD pipelines
- Familiarity with observability and usage tracking concepts
- Upper‑intermediate English level

NICE TO HAVES

- Experience integrating Azure billing systems or similar APIs
- Experience building or consuming SDKs
- Experience with PHP
- Experience building financial, billing, or cost‑allocation systems
- Familiarity with AI usage metrics, token‑based billing, or ROI tracking models
- Experience with dashboards, tables, filters, and data‑dense UI patterns
- Prior startup or founder‑led product experience
- Exposure to AI tooling workflows

PERKS AND BENEFITS

- Professional growth : Mentorship, TechTalks, and personalized growth roadmaps
- Competitive compensation : USD-based pay with education, fitness, and team activity budgets
- Exciting projects : Modern solutions with Fortune 500 and top product companies
- Flextime : Adaptable schedule with remote and office options

#J-18808-Ljbffr

📌 Full Stack Engineer (Senior) (León)
🏢 Agileengine
📍 León