Backend Platform Engineer -Python developer

Job Description

Role: Backend Platform Engineer (SaaS)
Company: QCoreSecure
Location: Bangalore
Experience: 03 - 09 years
Employment: Full-time

About QCoreSecure

QCoreSecure (www.qcoresecure.com) is a Bangalore-based product startup in the cybersecurity domain. They build advanced security products using quantum technology to protect sensitive data. It's an opportunity to work on innovative, next-generation cybersecurity solutions with a team that's developing cutting-edge products.

Team Mission

Build and operate a hardware-rooted, cryptographically verifiable Quantum Random Number Generation (QRNG) platform, spanning embedded hardware, secure Linux systems, cryptographic services, and cloud-based verifiable randomness APIs.

We’re Hiring | Backend Engineer (Python & FastAPI)
Join our growing team to build scalable backend services and APIs for a multi-tenant SaaS platform.
Work hands-on with Python, FastAPI, PostgreSQL, and Redis on production-grade systems.
If you enjoy ownership, clean architecture, and real-world impact — we’d love to hear from you!

Please find the JD Below – Let me know If you’re interested!

Role Responsibilities:

• Design, develop, and maintain backend services and APIs for a multi-tenant SaaS platform
• Build customer-facing and internal REST APIs using modern backend frameworks
• Implement core SaaS platform capabilities, including Tenant isolation, API key lifecycle management, Rate limiting and quotas, Usage metering and audit logging
• Design and maintain scalable data models and database schemas
• Develop asynchronous and background processing workflows
• Ensure high standards of code quality, test coverage, and documentation
• Collaborate with the Engineering Manager, Product, and cross-functional teams to deliver features end-to-end
• Participate in design discussions, code reviews, and architectural decision-making
• Support troubleshooting, root-cause analysis, and performance tuning in production environments
• Contribute to technical documentation, API specifications, and knowledge sharing

Required Skills & Qualifications:

• Bachelor’s degree in computer science, Engineering, or equivalent technical discipline
• 4+ years of professional experience in backend software development
• Strong hands-on experience with Python and FastAPI.
• Solid understanding of object-oriented and functional programming concepts.
• Good understanding of data structures, algorithms, and common design patterns.
• Solid understanding of backend service architecture and SaaS design principles
• Experience building and consuming REST APIs
• Experience working with relational databases such as PostgreSQL or similar and strong proficiency in SQL.
• Experience with caching systems such as Redis
• Familiarity with asynchronous processing and background job systems
• Good understanding of software security best practices
• Strong problem-solving skills and clear communication abilities
• Proficient understanding of code versioning tools, such as Git.

Desired / Preferred Skills:

• Experience building multi-tenant SaaS platforms
• Exposure to gRPC for internal service communication
• Experience with cloud platforms (AWS preferred)
• Experience with containerized deployments (Docker / Kubernetes)
• Familiarity with observability tools (metrics, logs, traces)

What We Look For:

• Strong ownership mindset and accountability for delivered features
• Ability to design systems that are scalable, maintainable, and secure
• Product-oriented thinking with attention to user and business needs
• Comfort working with production-grade SaaS systems
• Willingness to learn and adapt in a fast-moving environment
• Clear documentation and collaboration skills