Principal Software Engineer

at Mastercard · Fintech · O Fallon, MO +1 · Engineering

Principal Software Engineer role focused on building high-value, cloud-native applications, leading architectural design, and mentoring junior developers. Requires strong backend development skills (Java/Spring Boot, Python) and experience with microservice architecture, API design, and high-volume web services.

What you'd actually do

  1. Design, code, document and test components / subsystems to a world class standard in an agile way
  2. Be solution oriented – find and implement the ‘best fit’ solution to address the requirements on time
  3. Work independently with teamwork spirit
  4. Drive technology innovation within Commercial and across the company
  5. Lead architectural design of various initiatives

Skills

Required

  • Java
  • Spring Boot
  • Python
  • API design
  • microservice architecture
  • CSS
  • HTML5
  • JavaScript
  • AngularJS
  • Postgres
  • Oracle
  • MySQL
  • MongoDB
  • iOS
  • Android
  • security concerns
  • authentication
  • authorization

Nice to have

  • Dev/Ops
  • automation

What the JD emphasized

  • modern Architecture is a must
Read full job description

Job Title:

Principal Software Engineer

Overview:

Overview We are a St louis based development team building high value, cloud native applications. We are looking for brilliant and passionate software engineers to join our team. In this role you will play a leading role in building out a world class engineering team and design and implement world class innovative, high volume web applications.

Role • Design, code, document and test components / subsystems to a world class standard in an agile way • Be solution oriented – find and implement the ‘best fit’ solution to address the requirements on time • Work independently with teamwork spirit • Drive technology innovation within Commercial and across the company • Lead architectural design of various initiatives • Ensure adherence to established software development process • Share knowledge of various technologies to other team members • Mentor junior developers to technical leads.

About You: • Do you love to code? • Do you have a passion for product design and technology innovation and have a high energy, can-do attitude and strong sense of ownership /desire to succeed? • Are you a talented software developer with a passion for delivering high quality, high performing and highly extensible software? • Do you have a strong background in developing and delivering high volume web services? Multiple examples of solutions deployed where you were a key architect and coder. • Current background in modern Architecture is a must. Background in Dev/Ops a distinct advantage. • Background in automation a distinct advantage. • You strive to create highly intuitive and responsive products. • You are comfortable with security concerns, authentication, authorization, and fixing vulnerabilities.

Key Technology Areas: • Backend (Java/2JEE, Spring Boot, Python, API design, microservice architecture) • Frontend (CSS, HTML5, JavaScript, AngularJS) • Mobile (iOS, Android) • Database (Postgres, Oracle, MySQL, MongoDB)

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