Product Engineer

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?

Roles and Responsibilities

Code, develop, design and architect features related to the existing application. We  expect you to own modules end to end and take pride in the work products you  ship.

Lead from the front, when it comes to delivering high quality work products. Serve as a mentor to the team members

Create and define performance metrics. Ideate, innovate and hack through the  existing systems to improve performance

Perform code reviews, set coding practices and guidelines within the team.

Make sense of the product specs, be nimble in getting the issues resolved. Be a thought leader.

Critical Functional Skills

Solid understanding and knowledge of Java/C/C++. You should understand the concepts of multithreading, I/O, messaging, instrumentation etc and their  implementation in Java/Any other ObjectOriented Language.

Proficiency in the implementation of algorithms and the use of advanced data  structures to solve problems in computing. A solid foundation in the principles of  computer science is desired.

Ability to write clean, modular, and loosely coupled code by the use of design patterns.

He/She should be able to break down and architect complex software systems. For example

BuildCars Availability Engine for Ola.

Strong decisionmaking ability

Deep expertise in at least one programming language & tech stack.

Substantial experience in building complex and scalable solutions.

Strong object oriented design skills, ability to apply design patterns, and an uncanny ability to design intuitive module and class level interfaces

The ability to do deep problem solving and build elegant, maintainable solutions to complex problems.

Experience leading multi engineer projects and mentoring junior engineers

Experience with full life cycle development in any programming language on a Linux platform

Comprehensive operational experience including, optimizations, deployments and tuning servers like apache/mysql/tomcat/solr

Prior experience in working with Agile software methodologies (XP, Scrum), TDD, and Continuous Integration(CI/CD) a plus.

Experience in building data driven web application design and development is a plus

Expert level experience in building a scalable, large and complex business application

.Experience Required

:Typically with an experience of 5+ years of development experience in a product  firm.

Must have lead, designed, architected and delivered at least 1 project in his previous assignments independently.

Minimum Qualifications Required

Btech/MS from a reputed Institute

Deep expertise with any or combination programming languages: Java, C++, C#, Ruby, Scala,

Go any object oriented high level proprietary or open source language with strong programming constructs. We are not skill specific but go by strength in  competencies Machine coding Single machine in memory program

Need a working code with functionality Readable and well designed code with right abstractions, separation of concerns,right design patterns

Performant code with concurrency and efficient data structures

Write test cases covering the happy path and edge cases

Problem Solving

Choose the right combination of data structures to solve the problem

Identify most edge cases for the problem

Identify opportunities of parallelism: utilizes multicore solutions where applicable

Design & Architecture

Distributed systems design and system interaction

Identify API signatures

LLD with class design

Solve for performance & availability

We are an age-tech startup revolutionising healthcare with real-time data. We are creating a connected-care ecosystem that uses AI-enabled Health Algorithms and medical devices (IoT & Wearables) to digitise medical information exchange. In short, we want to allow older adults to live independently at their homes and enjoy their moments while keeping everyone informed. Our mission is to provide doctors, carers and family relatives with predictive tools capable of picking up health problems before they become severe, therefore saving time, money and lives.

Every member of the technology team is responsible for:

• The availability, security, scalability, and interoperability of our platform

• Delivering our product roadmap

• Planning for the future

• Generating enthusiasm and a sense of both technical and product pride

As a Senior .NET Developer, you play a key role in ensuring your team can efficiently turn ideas into reality. You’ll need to:

• Write technically sound, clean, maintainable code with practical application of established patterns and practices

• Take technical ownership of your team’s work, from its infancy through to delivering great implementation in production that pushes our standards higher and higher

• Believe in testing and make sure your code is always tested and the quality standards are always high

• Contribute to the definition and keep to the processes, standards and designs your team has agreed upon

• Track the progress that you are making towards the wider goals of your team, and transparently communicate that progress to your team and Technical Lead

• Ensure you and others are continuously improve, by proposing and implementing new processes, designs and engineering practices that make the team more effective

• Take responsibility for supporting your changes all the way through proving they work well and continue to work well in production

• At least 4 years of commercial experience with C# and .NET

• At least 2 years of experience with React.js/Vue.js

• At least 2 years of commercial experience with Microsoft Azure (or AWS)

• Designing and developing APIs for both high availability and scalability

• Writing automated tests (both unit and integration tests)

• Experience with CI/CD pipelines (ideally Azure DevOps)

• TDD and BDD

• Contributing to open source community

• DevOps, monitoring and alerting

• Experience with Health-tech, FHIR, Wearables, IoT

• If you can join within 1 month

• 4+ years of relevant experience.
• Strong in Java
• Additional skill in one or more of: Elastic Search, Javascript, Kubernetes, Terraform, network architecture, application security.
• Previous experience developing distributed, fault-tolerant applications using Micro services based architecture.
• Familiarity with several of the following technologies: Infrastructure-as-a-Service (AWS/Azure/Google Cloud), CI/CD systems (TeamCity/Jenkins), Docker, Linux (Oracle Linux/RedHat), RESTful APIs, log analysis tools, debugging tools.
• Strong team player with outstanding communication, organization, and interpersonal skills.
• Comfort with complex, rapidly evolving software development environments.
• Ability to learn new technologies quickly.
• Ability to drive, follow, and evangelize cross-team processes.
• Experience using distributed source code management systems such as Git.
• Experience using ticket tracking systems such as JIRA.
• Experience working with geographically distributed teams.
• Commitment to capturing and maintaining institutional knowledge.
• Significant work experience in startups or fast-paced enterprise technology development environments.