Full Stack Engineer (Senior) ID55910

AgileEngine • Aurora, CO

15h • Hybrid

About The Position

We are looking for a Senior Full Stack Engineer to take ownership of building AI usage dashboards, billing logic, and financial insights for a founder-led product. The role involves working with Python, Node.js, React, and PostgreSQL, integrating Azure billing data, designing APIs, and delivering data-intensive UI in an environment that emphasizes low process and high ownership. This position is ideal for engineers who are comfortable with ambiguous requirements and desire direct influence over product and architecture decisions.

Requirements

• 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

Responsibilities

• 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

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: Flexible schedule with remote and office options

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 251-500 employees