Hiring guide for ISGEM Engineers

ISGEM Developer Hiring Guide

ISGEM is a computer programming language designed for scientific applications. It was developed by the Lawrence Livermore National Laboratory in the 1970s and is still in use today. ISGEM is a compiled language, which means that it is translated into machine code before it can be run. It is a FORTRAN-like language, but with a number of extensions for scientific computing. ISGEM is known for its performance and portability. Sources: [1] https://en.wikipedia.org/wiki/ISGEM [2] https://computing.llnl.gov/projects/isgem

Ask the right questions secure the right ISGEM talent among an increasingly shrinking pool of talent.

First 20 minutes

General ISGEM app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in ISGEM application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

How would you explain the basic structure of a JSON file?
A JSON file basically consists of key-value pairs. The keys are always strings, and the value can be a string, number, boolean, null, array, or another JSON object. JSON objects are enclosed in curly braces, and key-value pairs are separated by commas. Arrays are enclosed in square brackets.
What are some of the key considerations when designing a database schema in ISGEM?
Some key considerations include understanding the business requirements, determining the entities and relationships, choosing primary keys, normalizing the database, indexing for performance, and planning for growth.
How would you handle a situation where the data in ISGEM is not syncing properly?
Firstly, I would check for any network issues. If there are no network issues, I would then check the logs to identify any errors or issues in the sync process. If the problem persists, I would check the configuration settings and make sure they are correct.
Describe the difference between SQL and NoSQL databases.
SQL databases are relational, use structured query language for defining and manipulating the data, and are good for complex queries. NoSQL databases can store relationship data, they’re good for hierarchical data storage, and are quicker for large data sets.
What are some security best practices when working with ISGEM?
Some best practices include always encrypting sensitive data, using secure connections, regularly updating and patching systems, limiting access to sensitive data, and monitoring system activity for any suspicious behavior.
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What you’re looking for early on

Does the candidate have a solid understanding of ISGEM principles?
Can the candidate communicate effectively?
Does the candidate show problem-solving abilities?
Is there a demonstration of relevant experience in the candidate's background?

Next 20 minutes

Specific ISGEM development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

How would you troubleshoot a slow running query in ISGEM?
I would check the query plan to identify any bottlenecks. I would also check for missing indexes, inefficient joins, and unnecessary full table scans. If possible, rewriting the query or optimizing the database schema might help.
Describe the difference between a left join, a right join, and an inner join in SQL.
A left join returns all records from the left table, and the matched records from the right table. A right join returns all records from the right table, and the matched records from the left table. An inner join only returns records that have matching values in both tables.
What are some ways to improve the performance of a database?
Some ways to improve performance include indexing, query optimization, database normalization, hardware upgrades, and regular maintenance like updating statistics and defragmenting the database.
How would you handle a situation where the database is running out of space?
I would first identify any unnecessary data that can be deleted. If more space is still needed, I would consider archiving old data, increasing the database storage capacity, or partitioning the data across multiple databases.
Describe the difference between normalization and denormalization in database design.
Normalization is the process of organizing data to minimize redundancy and dependency by dividing larger tables into smaller tables and defining relationships between them. Denormalization is the process of combining tables to improve read performance, at the cost of some write performance.
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The ideal back-end app developer

What you’re looking to see on the ISGEM engineer at this point.

At this point, a skilled ISGEM engineer should demonstrate strong problem-solving abilities, proficiency in ISGEM programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with ISGEM.

What does the following ISGEM code do?
public static void main(String[] args) {
 System.out.println("Hello, World!");
This code prints out the string 'Hello, World!' to the console.
What will be the output of the following ISGEM code?
int x = 5;
int y = 10;
System.out.println(x + y);
The output of the code will be 15. It's adding the values of variables x and y.
What does the following ISGEM code do?
List list = new ArrayList<>();
This code creates an ArrayList of Strings, adds the values 'A', 'B', and 'C' to the list, and then prints out the entire list.
What does the following ISGEM code do?
public class MyRunnable implements Runnable {
 public void run(){
 System.out.println("Thread is running.");
This code defines a class named MyRunnable that implements the Runnable interface. The run method is overridden to print 'Thread is running.' when an instance of MyRunnable is passed to a thread and the thread is started.

Wrap-up questions

Final candidate for ISGEM Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle ISGEM application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

What are some common mistakes developers make when working with ISGEM?
Common mistakes include not properly understanding the business requirements, not normalizing the database, not indexing properly, not securing the data, and not planning for growth.
How would you go about designing a new feature in ISGEM?
I would start by understanding the business requirements. Then, I would design the database schema and create the necessary tables and relationships. Next, I would write the code to implement the feature, followed by thorough testing and debugging. Finally, I would document the feature and train the users.
Describe the difference between a clustered index and a non-clustered index in SQL.
A clustered index determines the physical order of data in a table and there can be only one clustered index per table. A non-clustered index does not affect the physical order of the data, but creates a logical order that is stored separately from the data, and a table can have multiple non-clustered indexes.

ISGEM application related

Product Perfect's ISGEM development capabilities

Beyond hiring for your ISGEM engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in ISGEM projects, and can engage in multiple capacities.