Principal Engineer

Blue Spire Inc
Hyderabad, Telangana, India

Job Description: Principal Engineer – Java, Microservices & Payments

Experience: 8–12+ Years

Role: Principal Engineer – Backend Engineering

Domain: US Banking & Payments

Job Summary

We are looking for a highly experienced Principal Engineer with strong expertise in Java, microservices architecture, distributed systems, and US payment systems. The ideal candidate will have hands-on experience designing scalable backend platforms for payment processing, including Wire, ACH, and Real-Time Payments (RTP). The candidate should demonstrate strong system design leadership, advanced API integration skills, and expertise in building reliable, secure, high-performance applications.

Key Responsibilities

  • Design, develop, and maintain scalable backend applications and microservices using Java and Spring Boot.
  • Architect and implement payment processing solutions supporting Wire transfers, ACH, and Real-Time Payments (RTP).
  • Lead system design discussions and drive architecture decisions for complex, distributed applications.
  • Design advanced REST APIs and microservices, ensuring scalability, security, reliability, and maintainability.
  • Develop thread-safe, concurrent, and high-throughput backend processing systems.
  • Build event-driven architectures using Kafka or similar messaging platforms.
  • Integrate enterprise APIs using IBM API Connect (APIC) or equivalent API management platforms.
  • Containerize and deploy applications using Docker and Kubernetes.
  • Collaborate with frontend teams using frameworks such as React, Angular, or Vue.js.
  • Apply spec-driven development practices, translating API specifications and technical designs into implementation.
  • Ensure payment processing systems meet requirements for transaction integrity, idempotency, fault tolerance, reconciliation, and auditability.
  • Troubleshoot production issues, conduct performance tuning, and establish engineering best practices.
  • Provide technical leadership, mentor engineers, and drive code quality through design reviews and code reviews.

Mandatory Technical Skills

  • Java & Backend Engineering: Strong hands-on Java development, Spring Boot, and enterprise backend processing.
  • US Payment Systems: Practical experience with Wire transfers, ACH, and RTP payment processing.
  • API & Microservices Architecture: Advanced REST API design, API integration, and microservices development.
  • Distributed Systems: Strong understanding of concurrency, multithreading, thread safety, and high-throughput processing.
  • System Design: Ability to lead architecture discussions and design scalable, resilient, highly available systems.
  • Event-Driven Architecture: Experience with Kafka or equivalent messaging technologies.
  • API Management: Experience with IBM API Connect (APIC) or similar enterprise API management solutions.
  • Containerization: Hands-on experience with Docker and Kubernetes.
  • Frontend Exposure: Familiarity with React, Angular, or Vue.js.

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Questions about this job

How do I apply for the Principal Engineer job at Blue Spire Inc?

Use the apply link on this page: you apply directly with Blue Spire Inc on LinkedIn. Before you do, score your resume against this job description on Fitboard. It shows which skills and keywords the job asks for that your resume doesn't show, so you can fix them first.

What skills does Blue Spire Inc want for this Principal Engineer role?

The job description asks for Java & Backend Engineering, US Payment Systems, API & Microservices Architecture, Distributed Systems, System Design, Event-Driven Architecture, API Management and Containerization. Make sure your resume shows the ones you have, in the words the job uses: applicant tracking systems look for them.

How can I get a job at Blue Spire Inc?

Apply to the Blue Spire Inc roles that match your experience, and tailor your resume to each job description: for this role that means showing Java & Backend Engineering, US Payment Systems, API & Microservices Architecture. A resume that matches the job's own keywords is more likely to get past screening. Fitboard scores your resume against this exact job for free.

Is this Principal Engineer job remote or onsite?

This is based in Hyderabad, Telangana.

Is it free to apply? Does Fitboard charge anything?

Applying is free: you apply directly with Blue Spire Inc, and this job page and its apply link cost nothing. Checking your resume against this job is free too, with 3 free scans when you sign in and no credit card needed.

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