Haystack
← Back to Jobs
Technology

Sr. Full-Stack Developer

Hiring Dreams LLCUnited States🇺🇸United StatesPosted 13 Aug 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Sr. Full-Stack Developer

Introduction

This position is for a Sr. Full-Stack Developer needed for a large-scale platform modernization program. The goal is to migrate a legacy monolithic application into a cloud-native, API-first, and event-driven architecture. The team operates in an AI-first model using Spec-Driven Development with AI coding agents to assist in the software development lifecycle.

Responsibilities

  • Design and build services and application components to agreed specifications and standards.
  • Author specifications and use AI coding agents to generate, refine, and test implementation.
  • Critically review AI-generated output for correctness, performance, and security.
  • Write and maintain automated tests to meet coverage thresholds.
  • Participate in code reviews and support less experienced engineers in the pod.
  • Contribute to technical design discussions and resolve implementation-level design issues.

Requirements

Required Skills

  • 7-10 years in software engineering with strong Full-Stack .NET expertise.
  • Solid React and TypeScript experience; working knowledge of Kafka or similar event platforms.
  • Experience building microservices and REST APIs in a cloud environment.
  • Hands-on experience with AI coding assistants in a delivery context.
  • Strong automated testing discipline and familiarity with CI/CD pipelines.

Preferred Skills

  • Healthcare domain exposure advantageous.

Skills

Microservices
.NET
Kafka
LESS
REST
React
TypeScript

Similar jobs