Course (Part 633)

1. Identify and summarise the job requirements and responsibilities for the Senior Executive/Assistant Manager role.
2. Explain the core technical skills needed: React.js, Node.js, Flutter/Dart, JavaScript/TypeScript, and relational databases (Oracle/MySQL).
3. Describe how to integrate AI/NLP services (OpenAI, Dialogflow, Rasa) into application features such as chatbots.
4. Apply best practices in authentication, security (OAuth, JWT), CI/CD, and Agile team workflows.
5. Prepare a targeted CV and Video CV strategy tailored to the job posting and company context.

This position combines front-end, back-end, and mobile responsibilities for a full‑stack engineer operating within a cement-industry context. The candidate must design responsive UIs with React.js, construct scalable RESTful APIs using Node.js, and build high‑performance cross-platform mobile applications with Flutter. Database administration and query optimization for Oracle or MySQL are expected, as is the ability to deploy and maintain services on Oracle Cloud Infrastructure (OCI). Integrations include third‑party APIs and AI/NLP models—candidates should understand how to call models, handle inputs/outputs, and secure conversational interfaces. Software development lifecycle practices such as Git version control, CI/CD pipelines, code reviews, and Agile sprint workflows are central to daily work. Security competence includes token-based authentication patterns (JWT), OAuth flows for third-party authorisation, and general secure-coding hygiene. The role also expects collaboration with UI/UX designers, performance tuning, and devops-aware deployment strategies. Vendor certifications and prior Play Store/App Store deployment experience strengthen candidacy. Benefits and company context—mobile bill reimbursement, profit share, provident fund, insurance, gratuity, and festival bonuses—affect total compensation and retention considerations.

• Age requirement: at least 30 years.
• Minimum experience: 5 years with preferred exposure to manufacturing, trading/export-import or cement industry.
• Preferred certifications: vendor certifications for React.js, Node.js and Flutter may influence selection.
• Applicants should be able to deploy apps to Play Store and App Store and manage release pipelines.
• Employment is full-time, office-based (Gulshan-2), with yearly salary review and multiple benefits.
• Email applications or use the My Bdjobs account for submission; Video CV is recommended.

1. False — Age must be at least 30 years.
2. True — Proficiency in React.js and Node.js is required.
3. False — Video CV is encouraged, not mandatory.

1. 29 Apr 2025
2. React.js and Node.js
3. OCI (Oracle Cloud Infrastructure)

1. b) Oracle / MySQL
2. a) OpenAI, Dialogflow, Rasa

1. React.js — Front-end library for building user interfaces
2. Node.js — JavaScript runtime for backend services
3. Flutter — Cross-platform mobile development framework
4. OCI — Cloud platform used for deployment

First, define use cases and user intents (order tracking, product details, complaint logging) and prepare prompts and guardrails to ensure industry-appropriate responses. Build a middleware in Node.js that routes user messages to the OpenAI API with proper rate limiting, message filtering, and context handling. Store conversation context in a secure database (MySQL/Oracle) and use OAuth/JWT for authenticated user sessions. Combine OpenAI outputs with domain-specific knowledge bases or FAQs, and add fallback intents handled by Dialogflow or Rasa for structured flows. Ensure logging, monitoring, and privacy compliance before deploying to OCI and integrating into the mobile/ web front ends.

Introduce a "Smart Build Advisor" chatbot within the mobile app that leverages AI to provide instant guidance to customers and contractors: users submit project parameters (area, structural type, climate), and the system suggests suitable cement grades, estimated material quantities, and cost ranges. The advisor integrates OpenAI for conversational guidance, a domain rules engine for technical accuracy, and an order-creation pathway that pre-fills purchase requests and connects to nearest distributors. The advisor also offers maintenance tips and push notifications for product promotions or new safety advisories, enhancing retention and upsell opportunities.

1. Prepare a one-page CV targeted to the job listing and record a 60–90 second Video CV highlighting three technical achievements.
2. Implement a small demo: a React front end calling a Node.js API that returns a sample product FAQ, deploy it to a free cloud instance, and document the steps.

• Full‑stack — Development covering both front-end and back-end systems.
• CI/CD — Continuous Integration / Continuous Delivery pipelines for automated testing and deployment.
• OCI — Oracle Cloud Infrastructure, a cloud services provider.
• JWT — JSON Web Token, used for secure stateless authentication.

1. Write a two-page plan describing how you would migrate an existing monolithic customer service app to a microservices architecture that supports chatbot integration.
2. List the security measures you would implement to protect user data when integrating third‑party AI services.

Build and publish a simple Flutter app that shows a product catalog and uses a mock Node.js API. Document the Play Store / App Store deployment checklist you would follow for release readiness.