Senior Full Stack Developer

LNT/SFSD/1790061

LEDT-Edutech

Chennai Head Qrs.

Posted On 03 Jul 2026

End Date 30 Dec 2026

Required Experience 10 - 15 years

Skills

Knowledge & Posting Location

Design Full stack development

Minimum Qualification

Post Graduate Programme in Management (PGPM)

Job Description

About the Role

We are looking for a highly experienced Full Stack Developer to design, build, and scale a large, multi-service exam administration and online proctoring platform. You will work across the entire stack - from high-throughput backend microservices to modern frontend applications - supporting features like real-time assessments, biometric verification, proctoring, report generation, and large-scale data processing.

Key Responsibilities

Design, develop, and maintain microservices powering exam scheduling, candidate authentication, challenge/response handling, reporting, and content delivery.

Build and optimize backend services in Go (Golang) using frameworks such as Fiber/Gin for high-concurrency, low-latency APIs.

Develop and maintain frontend applications using Next.js, React, and TypeScript, including server-rendered pages, dashboards, and candidate-facing exam interfaces.

Work with the MEAN/MERN stack (MongoDB, Express.js, Angular/React, Node.js) for auxiliary services and tooling.

Write Python scripts/services for data processing, automation, report generation, or ML-assisted proctoring features (e.g., face detection, anomaly flagging).

Design and optimize PostgreSQL schemas and MongoDB aggregation pipelines for large-scale exam data (candidate responses, audit logs, biometric data).

Build and maintain real-time/near-real-time proctoring features: webcam/audio monitoring integration, tab-switch/focus-loss detection, network disconnection handling, and live exam timers with resilience to client-side clock drift.

Implement secure file handling using Azure Blob Storage (or equivalent cloud storage) for exam content, recordings, and generated reports/PDFs.

Diagnose and fix concurrency issues, race conditions, and data-scoping bugs in distributed Go services (shared map references, goroutine safety, etc.).

Collaborate with QA, DevOps, and product teams to ensure platform reliability during high-stakes, high-traffic live exam windows.

Conduct code reviews, mentor junior engineers, and contribute to architectural decisions across services.

Required Skills & Experience

9+ years of professional full-stack development experience.

Strong hands-on experience with Go (Golang) for backend microservices (Fiber, Gin, or similar).

Strong experience with Next.js / React / TypeScript for production frontend applications.

Solid understanding of the MEAN stack (MongoDB, Express, Angular, Node.js) or equivalent JS backend experience.

Working proficiency in Python for scripting, automation, or data/ML tasks.

Strong database experience: PostgreSQL (relational schema design, query optimization) and MongoDB (aggregation pipelines, indexing, performance tuning at scale).

Experience with cloud storage services (Azure Blob Storage, AWS S3, or GCP equivalents).

Experience building or working on assessment, examination, or online proctoring platforms is highly preferred.

Familiarity with real-time systems: WebSockets, polling mechanisms, timer synchronization, and handling unreliable network conditions gracefully.

Experience with PDF generation pipelines (headless Chromium/Puppeteer, wkhtmltopdf, or similar), including multi-language and RTL text rendering.

Strong debugging skills in distributed systems - race conditions, data consistency, caching bugs.

Familiarity with containerization (Docker) and basic CI/CD pipelines.

Understanding of authentication/authorization patterns (OTP, biometric verification, role-based access).

Good to Have

Experience with government or large public-sector education/exam systems.

Familiarity with bulk data import/export pipelines (CSV/Excel processing, upsert logic).

Experience with WYSIWYG editors (TipTap, Quill) for content management.

Exposure to AES/encryption handling for sensitive candidate data.

Experience optimizing systems for very high concurrent load (exam-day traffic spikes).

Soft Skills

Strong ownership mindset - comfortable working across the full stack and owning features end-to-end.

Ability to work in fast-paced environments with tight, exam-date-driven deadlines.

Clear communication for cross-functional collaboration with QA, DevOps, and government/client stakeholders.