Processica

We are looking for an experienced Backend Developer to join our team and work on a transportation-domain platform with a strong focus on EDI integrations.
 

What you will do:

• Develop and maintain backend services in Python.
• Build and support integrations with external systems and partners.
• Work with EDI/X12 messages, mappings, validation, and processing.
• Develop asynchronous and event-driven services.
• Work with AWS-based infrastructure and services.
• Design and maintain APIs and integrations.
• Troubleshoot integration and production issues.
• Work closely with the rest of the engineering team on architecture and implementation.
   

Requirements:

• Strong commercial experience with Python.
• Experience with AWS.
• Experience with backend APIs and system integrations.
• Experience with message-driven/event-driven architecture.
• Experience with relational databases.
• Solid understanding of distributed backend systems.

• Strong debugging and problem-solving skills.

   

EDI / X12:

Hands-on experience with EDI / ANSI X12 is highly important for this position.

Transportation-domain experience is preferred, particularly:

• X12 214 — Transportation Carrier Shipment Status.

• X12 210 — Motor Carrier Freight Details and Invoice.

   

Strong X12 experience from other industries is also highly relevant. For example:

• Retail / supply chain: 850, 856, 810
• Healthcare: 837, 835, 270/271

• Other EDI-heavy domains

   

We are looking primarily for someone who understands X12/EDI concepts and has practical experience with message structures, parsing, validation, mapping, acknowledgments, trading-partner differences, and integration troubleshooting. Direct experience with 210/214 is a strong advantage, but solid X12 experience in another domain is transferable.

Nice to have:

• NATS or another message bus; NATS preferred.
• Transportation or logistics domain experience.
• Direct experience with X12 210/214.
• Rust.
• Frontend/UI development experience.

Description
 

Product: SaaS platform for package management, route optimization, and delivery operations.
 

Responsibilities

• Design and develop backend services using Python (FastAPI).
• Build and maintain REST APIs for core platform functionality.
• Work with PostgreSQL: schema design, query optimization, migrations.
• Develop frontend components using JavaScript / TypeScript.
• Integrate frontend and backend layers with a focus on performance and reliability.
• Collaborate with product and engineering teams to translate business requirements into technical solutions.
• Participate in code reviews and contribute to improving development standards.
   

Requirements

• 3+ years of experience in full-stack development.
• Strong hands-on experience with Python and FastAPI (or similar async frameworks).
• Solid knowledge of PostgreSQL (indexes, joins, performance considerations).
• Practical experience with JavaScript and TypeScript.
• Understanding of RESTful API design and data modeling.
• Ability to work independently and take ownership of features.
• Strong knowledge of best practices for web application development and architecture.
• Experience with GIT, understanding of CI/CD, task management (JIRA, or other).
• Experience in PyTest and end-to-end tesing frameworks.
   

Nice to Have

• Experience with Rust. 
• Experience working on SaaS products or data-driven systems.
• Experience with routing, logistics, or optimization-heavy systems.
• Familiarity with basic cloud concepts (AWS, GCP, or Azure).
• Exposure to containerized environments (Docker).