Senior Software Engineer

Job Summary

Senior Software Engineer - Legacy Modernization (Warehouse Management Platform)

Role Overview

We are seeking a Senior Software Engineer (3-6 years experience) to work on the modernization of a mission-critical Warehouse Management System from AS/400 to a modern architecture based on React, Go, PostgreSQL, APIs, and microservices.

The platform supports end-to-end warehouse operations including receiving, inventory management, picking, packing, shipping, and cycle counting, along with business-critical functions such as Purchase Orders, Sales Orders, Payments, and General Ledger integrations.

The ideal candidate is a hands-on technical leader with deep experience in enterprise modernization, distributed systems, and AI-accelerated software development using tools such as Claude, GitHub Copilot.

Key Responsibilities

• Analyze and translate complex legacy business logic into scalable services and modern user experiences.
• Design and develop solutions using Go, React, PostgreSQL, APIs, and microservices.
• Define architecture, integration patterns, data migration strategies, and engineering standards.
• Drive AI-assisted development practices to improve productivity, code quality, testing, documentation, and delivery speed.
• Partner with product, business, and engineering teams to modernize warehouse and finance-related workflows.
• Mentor senior engineers and provide technical leadership across multiple teams.
• Ensure solutions meet requirements for scalability, performance, security, and maintainability.

Required Qualifications

• 3-6 years of software engineering experience with significant enterprise application development expertise.
• Proven experience modernizing legacy platforms such as AS/400, RPG, COBOL, or other monolithic systems.
• Strong hands-on expertise in:
  • Go
  • React
  • PostgreSQL
  • REST APIs
  • Microservices
  • CI/CD and DevOps practices
• Experience with large-scale data migration and system integration initiatives.
• Strong understanding of warehouse, supply chain, inventory, or order management systems.
• Experience leveraging AI development tools such as Claude, GitHub Copilot, Cursor, or ChatGPT.
• Excellent architecture, problem-solving, stakeholder management, and mentoring skills.

Preferred Qualifications

• Experience with Warehouse Management Systems (WMS), logistics, distribution, or supply chain platforms.
• Knowledge of financial processes such as Purchase Orders, Sales Orders, Payments, and General Ledger integrations.
• Familiarity with AS/400 DB2, RPG, batch processing, and legacy modernization patterns.
• Experience with cloud-native architectures, containers, observability, and event-driven systems.

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.