AgileEngine - Full Stack Engineer (Senior) ID55910

Full Stack Developer is needed in TUCUMAN, United States.

Client: AgileEngine

Location: TUCUMAN, T, ar

Contract: Freelance

Job Description

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

As a Senior Full Stack Engineer, you will build and integrate a cutting-edge financial intelligence platform designed for AI-driven insights, connecting complex backend systems with intuitive, data-rich user experiences. Working across Python, Node.js, React, and cloud integrations, you’ll transform raw billing data into actionable metrics while leveraging AI-first development workflows to accelerate delivery. This role offers high ownership, close collaboration with product leadership, and the opportunity to shape a fast-evolving, data-intensive product from the ground up.

Requirements

Must Haves

• 6+ years of experience with a full-stack background;
• Strong experience with Python and Node.js;
• Experience with PostgreSQL schema design and data modeling;
• Experience integrating Azure billing systems or similar APIs;
• Experience building frontend applications with React;
• Experience using AI tools such as Claude or GPT;
• Experience integrating third-party APIs, especially billing systems;
• Ability to work with incomplete requirements and deliver solutions;
• Experience working in early-stage product environments;
• Experience integrating frontend tests into CI/CD pipelines;
• Familiarity with observability and telemetry systems;
• Upper-intermediate English level.

Nice to Haves

• Experience building or consuming SDKs;
• Experience with PHP;
• Experience building financial or billing systems;
• Familiarity with AI usage metrics or ROI tracking models;
• Experience working with dashboards and data-heavy UI patterns;
• 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: Flexible schedule with remote and office options.

Additional Information

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