1. Tell me about a time when you had to manage a project with cross-functional team members and how you ensured its success.

Situation: While working as an Operation Excellence Manager Intern at JerseySTEM, I led a supply chain automation project for five departments with ten cross-functional team members.
Task: My main task was to coordinate with team members, manage project inventory, target material planning errors, and enhance productivity.
Action: To ensure the success of the project, I developed detailed project plans, assigned clear responsibilities to each team member, and had weekly meetings to monitor project progress. I also implemented the PDCA (plan, do, check, act) method to target material planning errors and reduce repetitive tasks.
Result: As a result of our collaboration, we were able to reduce repetitive tasks by 70%, improve productivity by 50%, and effectively target material planning errors. Also, the project was completed on schedule and within the allocated budget.

2. How did you optimize inventory and operations in your previous position?

Situation: While working as an Operation Excellence Manager Intern at JerseySTEM, I optimized inventory and operations.
Task: My main task was to develop descriptive and predictive analytics models to forecast student enrollment and optimize educational material inventory across 12 campuses.
Action: To optimize inventory and operations, I used methods such as descriptive and predictive analytics to forecast student enrollment, identify material requirements, and optimize inventory levels. I also collaborated with stakeholders to manage project inventory, minimize material stock-outs, and ensure timely delivery of supplies.
Result: As a result of our collaboration and my efforts, we were able to significantly decrease material stock-outs by 30% and optimize educational material inventory across 12 campuses.

1. What is the Time complexity of bubble sort algorithm?

The time complexity of bubble sort algorithm is O(n^2).

Explanation: Bubble sort algorithm compares adjacent elements in the array and swaps them if they are in the wrong order. This process is repeated for all elements of the array until the array is sorted. The time complexity of this algorithm is quadratic as it requires two nested loops to sort the array.

2. What is the Space complexity of quick sort algorithm?

The space complexity of quick sort algorithm is O(log n).

Explanation: Quick sort algorithm uses the divide-and-conquer technique and it requires recursion to sort the elements of the array. The space used in the recursion stack depends on the depth of the recursion tree. The worst case space complexity of quick sort is O(n), but the average space complexity is O(log n).

1. Design a system to manage inventory for an e-commerce platform.

High-level Design:
Solution: The inventory management system will have the following modules:
- Products: This module will maintain the details of all the products with their SKU, name, description, price, and quantity.
- Orders: This module will track the orders placed by customers with their order ID, customer details, product details, and status.
- Inventory: This module will maintain the stock levels of all the products with their SKU and quantity.
- Warehouse: This module will track the location of all the products in the warehouse and their movement in and out of the warehouse.
- Reports: This module will generate reports on inventory levels, sales, and orders.
Low-level Design:
- Products: Use database tables to store the product details along with the product ID, SKU, name, description, price, and quantity.
- Orders: Use database tables to store the order details along with the order ID, customer details, product details, and status.
- Inventory: Use database tables to store the inventory details along with the product SKU and quantity.
- Warehouse: Use RFID tags to track the location of all the products in the warehouse and their movement in and out of the warehouse.
- Reports: Use data analytics tools such as Tableau to generate reports on inventory levels, sales, and orders.

2. How would you design a system to track the lifecycle of an order?

High-level Design:
Solution: The order lifecycle system will have the following modules:
- Order Entry: This module captures the details of the order and passes it to the next module.
- Order Processing: This module processes the order details, verifies the order information, checks inventory availability, and flags orders that do not meet the criteria.
- Order Tracking: This module tracks the status of the order and sends alerts and notifications to customers and stakeholders.
- Order Fulfillment: This module picks, packs, and ships the order, and provides tracking information and delivery updates to customers.
Low-level Design:
- Order Entry: Use web forms or APIs to capture the details of the order and store it in a database.
- Order Processing: Use software algorithms to process the order details, verify the order information, check inventory availability, and flag orders that do not meet the criteria.
- Order Tracking: Use a tracking system to monitor the status of the order and send alerts and notifications to customers and stakeholders.
- Order Fulfillment: Use a warehouse management system to pick, pack, and ship the order. Send tracking information and delivery updates to customers and stakeholders using email or SMS alerts.

1. What was your role as an Operation Excellence Manager Intern at JerseySTEM?

As an Operation Excellence Manager Intern, I led supply chain automation projects for five different departments and coordinated 10 cross-functional team members. I implemented the PDCA (plan, do, check, act) to target material planning errors and reduce repetitive tasks. I also developed descriptive and predictive analytics models to forecast student enrollment and optimized educational material inventory across 12 campuses. Additionally, I procured project inventories, managed RFx and on-hand stocks, coordinated with stakeholders, and designed project KPI scorecards to monitor supply chain efficiency, costs, purchase order rates, and supplier reliability.

2. Describe a time when you used Lean Six Sigma methodology in your work.

As a procurement specialist at ABM Systems, Inc., I led and optimized the procurement process for HVAC sensor/controller, last mile commodities, and communication devices using data-driven forecasting. I streamlined the bill of materials (BOM) and standard operating procedures (SOP) according to project data, improving cash flow, bid competitiveness, service levels, and inventory cost by 30% in building automation systems. Furthermore, I managed RFQ processes, supplier negotiations and purchase orders to improve quality, delivery, and costs, reducing procurement cycles by an average of 3 days through rigorous supplier performance tracking.