TMSfirst
TMSfirst
201 – 500 Employees
LogisticsSupply ChainTransport
TMSfirst develops cloud-based transportation management software for organizations managing complex global supply chains. Its platform brings ocean, air, rail, bulk, full truckload, and less-than-truckload transportation into one system, combining supply chain visibility, analytics, data harmonization, and AI-supported workflows. By connecting logistics and procurement operations, TMSfirst helps businesses understand freight activity in real time, identify inefficiencies, and make more informed transportation decisions. Founded in 2014, the company operates in the transport, logistics, and supply chain technology sector and supports a team of 201–500 employees.

Senior Application Engineer, Remote (United States)

Build and expand Ascender Pro and internal applications across the full stack. Develop production features with Python, React, TypeScript, and Go while collaborating on architecture and delivery.

Description

  • Help develop and expand Ascender Pro and other internal applications.
  • Own frontend and backend engineering work, delivering features efficiently.
  • Build and maintain backend features with Python and frontend experiences with React and TypeScript.
  • Contribute to projects developed in Go when needed.
  • Use AI-assisted development tools and critically review their output for accuracy.
  • Work with the engineering team to deliver production-ready code quickly.
  • Contribute to architecture decisions and establish application-stack best practices.
  • Investigate, debug, and fix issues across frontend and backend systems.
  • Assist with other internal engineering initiatives as capacity permits.

Requirements

  • Advanced Python skills for backend engineering.
  • Hands-on experience with React, TypeScript, JavaScript, and NPM.
  • Experience with Go, or the willingness to work with it.
  • Ability to work quickly and manage a high volume of engineering tasks.
  • Practical experience with AI coding tools such as Claude Code or Copilot, together with the judgment to assess their results.
  • Comfort working across the full stack, with a particular focus on backend systems.
  • Strong analytical and problem-solving abilities, along with an independent approach to work.
  • A collaborative, approachable, humble, honest, and improvement-oriented mindset.
  • Six to eight or more years of professional software development experience.
  • A history of building and releasing production applications with Python and modern JavaScript or TypeScript frameworks.
  • Go experience is a significant advantage.
  • Familiarity with Ascender, AWX, or Ansible automation platforms is helpful but not required.
  • Experience with event-driven systems, infrastructure automation, or DevOps tools is beneficial.

Benefits

  • Medical, dental, and vision coverage.
  • Flexible paid time off.
  • Employee stock options.
  • Remote work with no travel required for most positions.

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