Portfolio Careers

Back End Developer

PortX

PortX

Software Engineering
United States
Posted on Mar 25, 2026

PortX is a leading AI-powered data and integration company for modern banking, bringing systems together and data to life through our unified platform for modern integration, governed customer 360 data, and next-generation payments.

We're in strong growth mode, with opportunities for Back End Developers, working in a high-impact environment, with a company culture that's open and rewarding, so it's a great time to join our growing team.

In addition to a competitive basic salary, benefits include an attractive equity package, insurance (medical, dental, vision), unlimited PTO, and 401(k).

Day to day responsibilities:

  • Hands-on development for PortX customer integration projects.
  • Build and enhance APIs, backend services, and integration components across modern banking and payments environments.
  • Design, develop, test, and maintain high-quality solutions for PortX customer integration projects.
  • Use modern AI tools responsibly to accelerate engineering productivity, code quality, testing, and documentation.
  • Troubleshoot, diagnose, and resolve customer-reported technical issues in a timely manner, including root cause analysis and permanent fixes where appropriate.
  • Participate in architectural and technical design discussions, helping define robust, secure, and maintainable solutions.
  • Contribute to deployment, configuration, and operational support processes across cloud-based environments, primarily AWS.
  • Write clean, maintainable, well-tested code and contribute to continuous improvement of engineering standards, tooling, and development practices.
  • Collaborate with cross-functional teams to improve system performance, reliability, observability, and scalability.
  • Create and maintain technical documentation relating to implementations, integrations, troubleshooting, and support handover.

You'll need these skills:

  • Advanced Python development knowledge and experience
  • Strong knowledge and experience with enterprise integration, API development
  • Demonstrated AI engineering experience, with quantified impact in your work
  • Hands on experience with deploying to AWS platform
  • Hands on experience with GIT

The role will be Seattle based, hybrid working pattern after on-boarding, so we invite applications from people living in the Seattle area.

You’ll be joining a talented team with a great culture, without ego and purpose-driven. You’ll fit right in here if you have a strong sense of ownership in your work, you value excellent customer experience. We look forward to reviewing your application.