Senior Fullstack Developer (Backend focus) at Zipdev

Department: Engineering

Language

Setup: Remote - Colombia
Type: Full-time, Contract
Level: senior
Posted: Sep 17, 2026

Description

The Senior Full-Stack Software Developer will build, improve, and maintain AI-enabled product capabilities for a client, with a backend-focused emphasis on .NET and C# services and APIs, React frontend contributions, SQL databases, and scalable software architecture. The role includes unit testing, technical documentation, code reviews, stakeholder demonstrations, and customer installation packages, with a requirement to be based in Latin America and work remotely Monday through Friday for 40 hours per week.

Required Skills

.NET
C#
React
JavaScript
HTML5
CSS3
REST APIs
SQL
JSON
XML
Git
LLMs
Azure

Additional Information

Required Previous Experiences: 8+ years of professional software development experience
Product development experience
.NET/C# backend development
React development
RESTful API development
SQL and database development
Distributed architecture and asynchronous request handling
Unit testing
Git or SVN
AI technologies, including LLMs, Agentic AI, and Machine Learning
Claude Code development and code review workflows
Preferred Qualifications: 5+ years of project or team lead experience
Mentoring or leading development teams
Master's degree in Computer Science or a related field
Regulated or highly controlled software development
Customer-facing software installation packages
Azure experience
Translation Company Name: Zipdev

Benefits & perks

Work remotely Monday - Friday, 40 hours a week (no weekends)
Did we mention it's REMOTE?!!
One of our core values at Zipdev is "Be authentic." that's why we encourage you to answer the application form in your own words; we are interested in getting to know you, not a digital assistant.
Wondering how our remote environment or our payment method work? We've put together some helpful answers in our FAQs at the bottom our our Take a look and let us know if you have any other questions!