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.
This job post has been translated by AI and may contain minor differences or errors.