Principal Developer -Fullstack Python Fast API
RTX Corporation
**Date Posted:**
2026-02-02
**Country:**
India
**Location:**
IN-KA-BENGALURU-NORTHGATE ~ Sy No 2/2 Venkatala Village ~ SY NO 2/2 VENKATALA VILLAGE, Yelahanka Hobli
**Position Role Type:**
Onsite
Pratt & Whitney is working to once again transform the future of flight—designing, building, and servicing engines unlike any the world has ever seen. And because transformation begins from within, we’re seeking the people to drive it. So, calling all curious. Come ready to explore and you’ll find a place where your talent takes flight—beyond the borders of title, a country, or your comfort zone. Bring your passion and commitment and we’ll welcome you into a tight-knit team that takes our mission personally. Channel your drive to make a difference into shaping an organization and an industry that’s evolving fast to the future. At Pratt & Whitney, the difference you make is on display every day. Just look up. Are you ready to go beyond?
**What You Will Do**
+ Develop new application / Provide L2 application support by diagnosing, troubleshooting, and resolving production issues in Python and Fast API.
+ Analyze application logs, database queries, and system behavior to identify root causes and implement long-term fixes.
+ Design, develop, and enhance backend services using Python and MS SQL Server within a microservices architecture.
+ Develop and maintain Backend features using **REST API design principles**
+ Implement secure, scalable APIs following **JWT-based authentication and authorization** security
+ Write and maintain unit tests and support CI/CD pipelines to ensure stable releases and smooth deployments.
+ Collaborate with cross-functional teams to deliver new features, support production systems, and continuously improve application reliability.
**Qualifications You must have**
+ Bachelor’s degree in **Computer Science** , **Software Engineering** , or a related field, or equivalent practical experience.
+ 6+ years of experience in a full stack or back-end development role.
+ Experience working with Agile methodologies (Scrum, Kanban).
**Backened Development:**
+ python backend developer with hands-on experience in Fast API for building high-performance APIs and mysql for database management.
+ Strong proficiency in Python
+ Hands-on experience with FastAPI
+ Experience with MS SQL Server
+ Knowledge of SQLAlchemy / ORM concepts
+ Understanding of REST API design principles
+ Experience with JWT-based authentication and authorization
+ Familiarity with async programming in Python
+ Knowledge of cloud platforms (Azure)
**Qualifications We Prefer**
+ Familiarity with **AWS** services, especially in the context of event-driven architectures (e.g., **AWS Lambda** , **SNS** , **SQS** ).
+ Experience with **container orchestration** tools like **Kubernetes** .
+ Familiarity with **Cloud platforms** (AWS, Azure, GCP) for cloud-native development.
+ Familiarity with **Clean Architecture** , **CQRS** , and **MediatR** library for building maintainable systems
+ Knowledge of Git and version control systems
+ Experience with API documentation tools (Swagger / OpenAPI)
+ Experience with **Backend for Frontend (BFF)** or **API Gateway** patterns to manage API calls and handle back-end communication
+ Strong problem-solving skills and attention to detail.
+ Excellent communication skills and the ability to work in a collaborative team environment.
**What We offer**
+ Long-term deferred compensation programs
+ Daycare for young children
+ Advancement programs to enhance education skills
+ Flexible work schedules
+ Leadership and training programs
+ Comprehensive benefits, savings, and pension plans
+ Financial support for parental leave
+ Reward programs for outstanding work
**Role Type:** Hybrid - Employees who are working in Hybrid roles will work regularly both onsite and offsite.
**Employment Type:**
+ Full-time
+ This position requires flexibility to support outside the regular office hours as per the need basis
_RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law._
**Privacy Policy and Terms:**
Click on this link (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms
Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.
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