Fullstack .Net Technical Manager (React JS) – IT

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Fullstack .Net Technical Manager – IT located in Chennai location.

We are looking for a highly experienced, hands-on Technical Lead who will play a dual role — actively contributing to coding while also mentoring and managing a small technical team.

The ideal candidate will be a strong individual contributor with deep expertise in .NET Core, React.js, containerization, and application monitoring (ELK Stack). You will lead by example — writing quality code, setting best practices, and guiding the team toward technical excellence.

This position requires strong ownership, the ability to make architectural decisions, and a collaborative mindset to work effectively with product, DevOps, and business stakeholders.

Reporting to the Senior Manager, and the role involves:

What a typical day looks like:

• Lead technical design and architecture discussions ensuring scalability, performance, and security.

• Design, develop, and maintain enterprise-grade web applications using .NET Core, C#, and React.js.

• Act as an individual contributor — writing clean, efficient, and maintainable code while mentoring others.

• Manage and guide a small team of developers — conducting code reviews, design reviews, and technical mentoring.

• Own the end-to-end delivery of assigned modules — from requirements and design through deployment and monitoring.

• Manage source control using Git, maintain branching strategies, and enforce best practices in version control.

• Build, deploy, and manage containerized applications using Docker and Kubernetes.

• Integrate and monitor systems using ELK Stack (Elasticsearch, Logstash, Kibana) for observability and troubleshooting.

• Collaborate with cross-functional teams — QA, DevOps, architects, and product owners — to deliver robust solutions.

• Continuously identify performance bottlenecks and propose optimizations.

• Drive continuous improvement in coding practices, processes, and tools across the team.

The experience we’re looking to add to our team:

• Bachelor’s or master’s degree in computer science, Information Technology, or related field (or equivalent work experience).

• 12 - 15+ years of experience in Information Technology or related field.

• Backend:

• Expert in C#, ASP.NET Core, Web API, LINQ, Entity Framework Core

• Strong understanding of microservices architecture and distributed systems

• Experience with SQL Server and database performance tuning

• Frontend:

• Hands-on with React.js, TypeScript, Redux / Context API, HTML5, CSS3, Bootstrap / Tailwind

• Strong in RESTful API integration and state management

• DevOps / Tools:

• Proficient in Git (GitHub / GitLab / Azure DevOps)

• Experience in Docker, Kubernetes, and CI/CD pipeline management

• Monitoring / Logging:

• Hands-on with ELK Stack (Elasticsearch, Logstash, Kibana) for centralized logging and performance insights

• Additional Advantage:

• Experience with Azure / AWS Cloud Services

• Familiarity with Unit Testing Frameworks (xUnit / NUnit / Jest)

• Knowledge of message queues (Kafka / RabbitMQ)

• Exposure to security best practices and API gateway configurations

• Soft Skills & Attitude:

• Strong analytical and problem-solving mindset

• Excellent leadership and communication skills — able to guide team members while being hands-on

• Ownership mindset — accountable for quality and timely delivery

• Positive, collaborative, and solution-oriented attitude

• Ability to balance coding and team management effectively

• Quick adaptability to changing priorities and technologies

Why Join Us

• Lead technical delivery while staying close to hands-on coding

• Work on cutting-edge technologies and cloud-native architectures

• Be part of a collaborative, learning-focused culture

• Competitive compensation and opportunities for career and technical growth

What you will get for the great work you provide:

• Health Insurance

• PTO

NK99

IT

Flex pays for all costs associated with the application, interview or offer process, a candidate will not be asked for any payment related to these costs.

Flex does not accept unsolicited resumes from headhunters, recruitment agencies or fee based recruitment services. Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. Flex does not discriminate in employment opportunities or practices based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status or any other status protected by law. Flex provides reasonable accommodation so that qualified applicants with a disability may participate in the selection process. Please advise us of any accommodations you request to express interest in a position by e-mailing: [email protected]. Please state your request for assistance in your message. Only reasonable accommodation requests related to applying for a specific position within Flex will be reviewed at the e-mail address. Flex will contact you if it is determined that your background is a match to the required skills required for this position. Thank you for considering a career with Flex.