Sr Fullstack Engineer

About the role

About Us

Coderio designs and delivers scalable digital solutions for global companies. We combine strong technical expertise with a product mindset to lead complex software initiatives end-to-end. We work with international clients, value autonomy and clear communication, and build long-term partnerships through technical excellence. 🌍 More information: http://coderio.com

We are looking for a seasoned Senior Full Stack Engineer to join a high-impact contract engagement with one of our premier international clients. This strategic initiative focuses on a massive modernization effort, migrating complex enterprise data systems and large-scale data processing architectures into a high-performance solution built on Python and T-SQL. If you thrive on complex data engineering, frontend optimization, and clean-code modernization, this is the perfect challenge for you.

This position is open only to talent based in LATAM

What To Expect In This Role (Responsibilities)

Data Modernization: Deep dive into complex legacy data schemas to optimize, refactor, and convert backend database logic into clean, efficient Python scripts and modern reporting structures.

Full Stack Engineering: Design, develop, and optimize robust APIs and backend business logic using Node.js and Python.

Frontend Delivery: Build and enhance intuitive, high-performing user interfaces and data dashboards using ReactJS and Material-UI.

Database Optimization: Write, troubleshoot, and fine-tune complex T-SQL / SQL Server queries, advanced stored procedures, and functions.

Collaboration & Quality: Partner with global cross-functional teams, ensuring top-tier code quality, thorough documentation, and rigorous testing practices.

Requirements:

Experience: 6+ years of professional software engineering experience in enterprise-grade full-stack environments.

Language: Full verbal and written fluency in English. Excellent communication skills are required for daily collaboration with global teams.

Backend Stack: Proven, production-level development experience with Python and Node.js.

Frontend Stack: Hands-on experience with ReactJS.

Database Expertise: Advanced, deep knowledge of SQL Server (complex query optimization, stored procedures, and performance tuning).

DevOps Infrastructure: Solid experience managing and deploying applications on Kubernetes and handling CI/CD platform infrastructure.

Nice to Have

Technical experience working with Sybase databases.

Professional experience with Java.

Prior background in large-scale data migration, report engine modernization, or legacy database restructuring.

Benefits

100% remote work.

Long-term engagement with high impact and autonomy.

Strategic and high-visibility role within a modern engineering culture.

Opportunity to influence technical and business strategy.