Full Stack Java Developer (Founding Engineer)

Our client, AMZ Prep is looking for a Full Stack Java Developer to serve as the first in-house engineer responsible for building, maintaining, and scaling our proprietary fulfillment and logistics platform. In this hands-on role, you will own full-stack development efforts—ranging from backend architecture to front-end user experiences—and work directly with the CTO and leadership team.

You will lead development initiatives, integrate complex third-party systems, support automation across operational workflows, and lay the technical foundation for future engineering hires. This role requires someone who is self-directed, comfortable collaborating with offshore resources, and motivated to build scalable technology in a fast-growing environment.

Key Responsibilities1. Full-Stack Development & Architecture

• Design, develop, test, and maintain web applications using Java / Spring Boot on the backend and modern JavaScript frameworks (React, Angular, or Vue) on the frontend.
• Build, document, and optimize RESTful APIs and microservices used for internal tools and customer-facing systems.
• Engineer scalable data structures and workflow automation supporting order fulfillment, inventory tracking, transportation management, and billing.
• Maintain and optimize database performance across SQL and NoSQL environments (PostgreSQL/MySQL, MongoDB).
• Ensure high availability, fault tolerance, and application security across all systems.

2. Systems Integration

• Integrate with external platforms such as Shopify, Amazon, WMS solutions, carrier APIs (UPS/FedEx), accounting systems, and other third-party services.
• Build automated data flows to reduce manual processes across operations, customer support, and partner communication.
• Collaborate with internal teams to evaluate integration requirements, scope complexity, and deployment timelines.

3. Collaboration, Planning & Documentation

• Work closely with Product, Operations, and Customer Success teams to translate real operational requirements into technical specifications.
• Contribute to sprint planning, technical roadmaps, and architectural decision-making.
• Produce clean, reusable, well-documented code and technical documentation for internal and external stakeholders.
• Coordinate with offshore developers and guide delivery expectations.

4. DevOps, Deployment & Maintenance

• Manage deployments, CI/CD pipelines, and automated testing (GitHub Actions, Jenkins, or equivalent).
• Monitor system performance, uptime, error logging, and incident resolution.
• Support best practices for security, privacy, and compliance across systems.
• Contribute to containerization and cloud infrastructure (Docker, AWS/GCP/Azure).

5. Leadership & Future Team Development

• Establish engineering standards, reviewing coding best practices and QA processes.
• Mentor future junior engineers and assist in hiring as the team expands.
• Influence long-term product and architecture decisions as we scale.

Required Skills & Experience

• 3–5+ years experience building production web applications
• Strong expertise in Java, Spring Boot, and RESTful service architecture
• Proficiency with modern JavaScript/TypeScript frameworks (React, Angular, or Vue)
• Hands-on experience with SQL and NoSQL databases
• Experience with Git and CI/CD pipelines
• Familiarity with Docker and cloud environments (AWS, GCP, Azure)
• Strong debugging, performance optimization, and system architecture skills
• Effective communicator with strong documentation habits; able to work independently

Nice to Have

• Experience in logistics, warehousing, fulfillment, or eCommerce environments
• Knowledge of message queues (Kafka, RabbitMQ, AWS SQS)
• Experience with React + TypeScript
• Exposure to Python or Node.js for integration scripts
• Prior startup / early-stage / small-team experience

What They Offer

• Competitive compensation and long-term growth pathway
• Opportunity to be the founding engineer shaping AMZ Prep’s technology
• Direct collaboration with executives and functional leaders
• High-impact work that influences real-world supply chain operations