Job Title: Senior Technical Principal Engineer (MERN Stack)

Position Summary

We are seeking a Senior Technical Principal Engineer with strong MERN Stack (MongoDB, Express.js, React.js, Node.js) expertise to lead architecture, engineering execution, and project transitions from external vendors to internal teams. The ideal candidate will provide technical leadership, drive architectural decisions, mentor teams, and ensure delivery of scalable, secure, and maintainable enterprise solutions.

Key Responsibilities

•Lead technical architecture, solution design, and technology strategy across multiple projects.

•Drive vendor-to-internal project transitions, including code reviews, architecture assessments, documentation, and knowledge transfer.

•Make key technical decisions and establish engineering best practices, standards, and governance.

•Design scalable, secure, high-performance cloud-native applications.

•Collaborate closely with Product, Engineering, DevOps, Security, and Business stakeholders.

•Lead and mentor development teams, conduct code reviews, and support technical growth.

•Own technical planning, estimation, risk management, and delivery execution.

•Support Agile/Scrum ceremonies, sprint planning, backlog grooming, and release planning.

•Work with DevOps teams on CI/CD, deployment strategies, monitoring, and operational excellence.

•Drive modernization initiatives, technical debt reduction, and continuous improvement.

Required Skills & Experience

•10 years of software engineering experience with 5 years in architecture/principal engineering roles.





•Robust hands-on experience with:

oReact.js, Next.js, TypeScript oNode.js, Express.js oMongoDB oREST APIs, GraphQL

•Strong knowledge of:

oSystem Design and Solution Architecture oMicroservices and Modular Monolith architectures oDesign Patterns, SOLID Principles, Clean Architecture oSecure Coding Practices and OWASP standards oCloud platforms (Azure preferred)

•Experience with:

oAzure Services, Containers, Kubernetes (preferred)

oCI/CD pipelines, DevOps collaboration oJira, Confluence, Agile/Scrum methodologies oGit branching strategies and release management oMonitoring, Logging, Incident Management, RCA

Leadership Expectations

•Ability to work independently and take ownership of critical technical decisions.

•Excellent communication and stakeholder management skills.

•Proven experience leading multiple teams and cross-functional initiatives.

•Strong vendor management and project takeover experience.

•Ability to balance long-term architecture goals with business delivery needs.

•Mentor engineers and elevate overall engineering standards.

Nice to Have

•Experience in cloud migration and modernization programs.

•Exposure to PCI, SOC2, GDPR, or regulated environments.

•Experience with enterprise SaaS platforms and large-scale distributed systems.

What We're Looking For A technology leader who can confidently own architecture, guide engineering teams, drive successful project transitions, collaborate across departments, and establish a scalable engineering foundation while remaining hands-on when needed.

📌 Senior technical Principal Engineer(Mern stack) (Secunderabad)
🏢 MARS Telecom Systems
📍 Secunderabad