Job Description

Job Title: Principal Full Stack Developer / Lead Full Stack Developer

Experience:

10+ years

Location:

Gurugram

Employment Type:

Full-time

Job Summary

We are seeking a highly accomplished

Principal Full Stack Developer / Lead Full Stack Developer

with over a decade of experience in architecting, designing, and delivering enterprise-grade software solutions. The ideal candidate must have deep, hands-on expertise in

.NET Core, C#, .NET MVC, React.js, React Native, Python, SQL Server, and PostgreSQL

.

This leadership role involves shaping the technology roadmap, driving architectural excellence, mentoring engineering teams, and building scalable, secure, and high-performing applications.

Key ResponsibilitiesArchitectural Leadership

Lead end-to-end architecture, design, and development of complex, scalable full-stack applications. Drive architectural decisions covering backend (.NET, Python), frontend (React.js/React-Native), and databases (SQL Server, PostgreSQL).

Technical Strategy & Innovation

Recommend new technologies, tools, and frameworks to enhance performance, scalability, and efficiency. Promote and enforce engineering best practices across teams.

Mentorship & Team Development

Mentor senior and junior developers and cultivate a culture of technical excellence. Facilitate technical discussions, code walkthroughs, and knowledge-sharing initiatives.

System Design & Scalability

Design highly available, maintainable, and secure systems. Lead data modeling, query optimization, indexing strategies, and database performance tuning.

Cross-Functional Collaboration

Work with product, design, and DevOps teams to define technical requirements and delivery timelines. Ensure solutions align with business goals and product vision.

Code Quality & Governance

Establish coding standards, architectural patterns, and project quality benchmarks. Conduct detailed code reviews to ensure maintainability and architectural alignment.

Performance Optimization

Identify performance bottlenecks and optimize front-end, backend, and database layers. Improve application responsiveness, reliability, and scalability.

Troubleshooting & Incident Resolution

Lead troubleshooting of complex production issues. Conduct RCA (Root Cause Analysis) and implement long-term corrective measures.

Required Skills & Qualifications

10+ years

of full-stack development experience. Expert-level knowledge in:

.NET Core / ASP.NET Core, C#, .NET MVC

React.js

with Redux, Hooks, Router

React-Native

for mobile development

Python

for backend/data processing Advanced proficiency with

SQL Server & PostgreSQL

, including: Performance tuning Query and indexing optimization Complex stored procedures Strong command of: Microservices DDD, CQRS, and scalable architecture patterns RESTful API design OAuth2, JWT, and enterprise security standards Solid experience with

Git

and

Agile/Scrum

methodologies. Excellent leadership, communication, and problem-solving skills.

Preferred Skills

Hands-on experience with

AWS / Azure / GCP

. Containerization and orchestration (

Docker, Kubernetes

). Messaging & real-time communication: RabbitMQ Azure Service Bus SignalR Socket.IO Exposure to NoSQL technologies like

MongoDB

or

Redis

.

How to Apply

Interested candidates can share their updated resume at:

priyanka@staffrex.in / admin@staffrex.in

Job Type: Full-time

Pay: ?384,977.29 - ?1,625,610.25 per year

Benefits:

Commuter assistance Health insurance Paid sick time Provident Fund
Ability to commute/relocate:

Gurgaon, Haryana: Reliably commute or planning to relocate before starting work (Required)
Education:

Bachelor's (Required)
Experience:

.NET Core: 10 years (Required) C#: 10 years (Required) MVC: 10 years (Required) Python: 10 years (Required) React Native: 10 years (Required) PostgreSQL: 10 years (Required) Microsoft SQL Server: 10 years (Required) React: 10 years (Required)
Location:

Gurgaon, Haryana (Required)
Work Location: In person