Java Developer

Requirements

• Extensive and expert programming experience in at least one general programming language (e. g. Java, C, C++) & tech stack to write maintainable, scalable, unit-tested code.

• Experience with multi-threading and concurrency programming.

• Extensive experience in object oriented design skills, knowledge of design patterns, and a huge passion and ability to design intuitive modules and class-level interfaces.

• Excellent coding skills - should be able to convert design into code fluently.

• Knowledge of Test Driven Development.

• Good understanding of databases (e. g. MySQL) and NoSQL (e. g. HBase, Elasticsearch, Aerospike etc).

• 4+ years of experience in the art of writing code and solving problems on a large scale.

• Open communicator who shares thoughts and opinions frequently, listens intently, and takes constructive feedback.

Job Description: Java Developer for Hypertest SDK Development

[See assignment at the end as well]

Company Overview

At Hypertest (https://hypertest.co), we're not just writing code; we're rewriting the rules of software development.

Our autonomous testing tool has already transformed the NodeJs ecosystem for developers at more than 50 teams, and now we're bringing this revolution to Java with your help.

Our Mission: Save developers from the mundane. We automate test case generation, letting you bid farewell to countless hours spent on JUnit, Mockito, RestAssured, Postman, etc.

Imagine a development cycle where your focus is purely on creating, not correcting.

Role: Java Developer

HyperTest seeks a Senior Java Developer with profound expertise in Java's core mechanics and a passion for solving complex problems. This role is central to the development of our Java SDK, crucial for expanding HyperTest's functionalities. Ideal candidates will have a strong background in Java, including experience with library patching, bytecode manipulation, and observability frameworks like OpenTelemetry, New-Relic, Datadog etc.

Location

This is a hybrid position based in Gurugram.

Key Responsibilities

• Develop the HyperTest Java SDK, employing advanced Java techniques for runtime library manipulation and data mocking.
• Extend OpenTelemetry for observability and monitoring in distributed systems, ensuring our SDK integrates seamlessly with modern development ecosystems.
• Create solutions for simulated testing environments that operate in various modes without modifying the original application code.
• Serve as a Java subject matter expert, guiding the team in best practices and innovative software development approaches.

Qualifications

• Java Expertise: Extensive experience in Java, including familiarity with its internals, memory model, concurrency, and performance optimization. Not just experience with high-level frameworks, but a solid understanding of underlying principles and the ability to manipulate Java's core functionalities.
• Software Architecture: Strong grasp of software design patterns, architectural principles, and the ability to solve complex problems with efficient, scalable solutions.
• Analytical Skills: Exceptional problem-solving abilities, capable of addressing complex challenges and driving innovative solutions.
• Communication: Excellent verbal and written communication skills, essential for teamwork and collaboration.
• Specialized Knowledge: Experience with bytecode manipulation, library patching (e.g., Byte Buddy), and a clear understanding of Java's compilation and execution process.

Ideal Candidate Profile

• Not Just Another Java Developer: We're looking for someone who has moved beyond just building applications with Spring Boot or similar frameworks. You should have an experience that demonstrates a deep understanding of Java, including direct manipulation of bytecode, custom library creation, and performance optimization.
• A True Java Enthusiast: You find excitement in exploring Java beyond the surface level, delving into its internals, and leveraging this knowledge to build innovative solutions.

Technical Assessment Overview

Shortlisted candidates will complete a short technical assessment focused on:

• Library Patching and Dynamic Data Mocking: Demonstrating advanced Java skills in runtime library functionality manipulation.
• OpenTelemetry Integration: Applying observability frameworks to trace and monitor distributed systems, a key component of our SDK development.
• Simulated Testing Environments: Creating flexible testing scenarios that replicate real-world conditions without altering the original code.
• Innovative Problem-Solving: Tackling complex Java-related challenges that reflect the technical depth required for this role.

This assessment will help us identify candidates who not only have the technical expertise but also the creativity and problem-solving skills essential for success at HyperTest.

Why Join HyperTest?

Joining HyperTest means being at the forefront of the automated testing revolution. We offer a dynamic work environment, opportunities for professional growth, and the chance to make a significant impact on our product and the wider development community.

Assignment Link

https://t.ly/sp5Xa

Self-Assessment/Screening Questions

1. Do you have experience with Java bytecode manipulation?
2. Are you familiar with library patching techniques in Java, such as using Byte Buddy?
3. Have you used OpenTelemetry or similar frameworks for observability in distributed systems?
4. Do you understand how opentelemetry java sdk works?
5. have you developed SDKs or libraries in Java?
6. How many years of Java development experience do you have?
7. How many projects have you worked on that required deep knowledge of Java's internals (e.g., memory management, concurrency)?
8. After reviewing the detailed assignment at https://t.ly/sp5Xa , how confident are you in your ability to meet the technical challenges outlined, on a scale from 1 to 10?

Reward360 powers a data-driven customer engagement ecosystem that enables the world’s leading organisations to earn customer loyalty every day. For over 10 years, R360’s loyalty and reward platforms have driven ambitious loyalty programs for some of the world’s biggest brands – including Axis Bank, Standard Chartered Bank, HDFC Bank and Emirates National Dubai Bank. We have 500+ global retail partnerships and offer our clients reward programs, nuanced customer segmentation, data-centric campaigns, and big data analytics.

You will architect, design & build large scale software systems for loyalty, rewards, commerce and payments that are directly used by customers of large banks. You will have the opportunity to build systems end to end and improve & influence customer behavior. You will also influence best practices and drive how we operate large systems in an efficient manner. If you are excited about this opportunity and meet the requirements laid out below, we would like to talk to you! 

What you’ ll do: 

1. Work as Core Java developer with prime focus on Backend 

2. End to end development from design to development 

3. Code & design review of peers 

4. Troubleshoot critical issues and guide team as well 

What we’ll need: 

1. Overall 4-6 years of experience 

2. 3+ years of hands-on experience in Java/J2EE technologies 

3. Strong Data structures & algorithm skill 

4. Strong communication & design skills 

Technical Skills 

1. Core Java (Collection, multi-threading, design patterns) 

2. Frameworks - Hibernate, Spring, REST Jersey 

3. Front end technologies – Java Script, jQuery, Angular 

4. Database – SQL & NoSQL 

5. Modelling – UML & ERD 

Bonus point if: Candidate from product company would be preferred

The ideal candidate should be a proactive individual with strong communication skills and a team player. He or she should have an experience of at least 1-2 years in Java development.

1. Hands on experience in designing and developing applications using Java EE platforms and at least 1-2 years’ experience on the same.
2. Should have excellent in-depth knowledge on Core Java
3. Experience in multi-threaded server-side Java programming
4. Working knowledge on web services.
5. Working knowledge on hibernate and springs framework.
6. Added advantage if worked in any of the BPM tools
7. Should have worked in SDLC environment.
8. Good communication skills.
9. Experience in working effectively within a team.