Role: Backend Platform Engineer (SaaS)

Company: QCoreSecure

Location: Bangalore

Experience: 04 - 06 years

Employment: Full-time

About QCoreSecure

QCoreSecure (www.qcoresecure.com) is a Quantum Security company delivering true, hardware-generated randomness using a patented Silicon-Photonics QRNG technology developed with IIT Madras. Our platform provides ultra-secure, high-throughput quantum randomness through a cloud API and in-premise appliances, enabling banks, fintech companies, payment systems, cybersecurity platforms, gaming providers, and critical infrastructure to strengthen encryption, authentication, and digital identity.

As we scale our platform globally, we are expanding our core team to take our QRNG technology from engineering to enterprise adoption.

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.

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

Backend Platform Engineer (SaaS)

Staff Engineer- Backend/DevOps/Platform Engineering