You’ll spend time on the following Developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance. Write maintainable/scalable/efficient code. Contributing in all phases of the development lifecycle. Continue to innovate and build solutions to support business growth and launch new features. Object-Oriented Analysis and design using common design patterns. Given a fuzzy product requirement, work with other stakeholders, product to understand & refine the requirements and change them to tech requirements Work in a cross-functional team, collaborating with peers during entire SDLC. Managing the developed applications and live support.
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We’re Excited About You If You Have Excellent coding skills in Java/J2EE Strong problem-solving skills, data structures and algorithms. Have experience in building and maintaining large scale web applications in service-oriented architecture. Good Understanding of Java 8 with proven hands-on skills Experience in Spring Framework - Spring Boot, Spring Data, Spring REST Experience in Spring Reactive Good understanding of SQL and MYSQL Knowledge of professional software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations Understands version control branching strategies Understands different major language paradigms (object oriented / functional /reactive) Understanding of AWS is a plus Can reason about complexity of algorithms (time and space) Can debug code at ease and ensure quality code is produced Good verbal and written communication skills
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About Root Node
We’re an early-stage startup building intelligent tools for planning, scheduling, and optimization—starting with timetabling and warehouse logistics. Backed by deep domain expertise and a growing customer pipeline, we’re now building our core tech team. This is not just a coding job — it's a chance to build something meaningful from the ground up.
About the job
- Design and implement robust backend systems and APIs using Java or similar backend language and Spring Boot or equivalent frameworks
- Integrate backend services with existing custom ERP systems
- Work closely with the founder on product architecture, feature prioritization, and go-to-market feedback
- Take full ownership of features — from system design and development to deployment and iterative improvements
- Help shape our engineering culture and technical foundations
You're a Great Fit If You:
- Have 3+ years of experience in backend development
- Are strong in Java or similar languages (e.g., Kotlin, Go, Node.js)
- Have solid experience with Spring Boot or equivalent backend frameworks
- Have integrated with ERP or enterprise systems in production environments
- Are comfortable with both SQL (PostgreSQL) and NoSQL (MongoDB)
- Understand REST API development, authentication, Docker
- Have an entrepreneurial mindset — you're excited about ownership, ambiguity, and making decisions that shape the product and company
- Want more than just a job — you want to build, solve, and learn rapidly
What We Offer
- Competitive salary
- High degree of ownership and autonomy
- Ability to shape the tech and product direction from Day 1
- Transparent and fast decision-making culture
- A builder’s environment — solve real-world problems with real impact
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
- Do you have experience with Java bytecode manipulation?
- Are you familiar with library patching techniques in Java, such as using Byte Buddy?
- Have you used OpenTelemetry or similar frameworks for observability in distributed systems?
- Do you understand how opentelemetry java sdk works?
- have you developed SDKs or libraries in Java?
- How many years of Java development experience do you have?
- How many projects have you worked on that required deep knowledge of Java's internals (e.g., memory management, concurrency)?
- 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?
About - The company is an online discovery platform that offers direct-to-home product trials for D2C brands.
Location- Bangalore
Series- B
Responsibilities
- Lead simultaneous development for multiple business verticals.Design & develop highly scalable, reliable, secure, and fault-tolerant systems.Ensure that exceptional standards are maintained in all aspects of engineering.Collaborate with other engineering teams to learn and share best practices.Take ownership of technical performance metrics and strive actively to improve them.Mentors junior members of the team and contributes to code reviews.
Requirements
- A passion to solve tough engineering/data challenges.Be well versed with cloud computing platforms AWS/GCPExperience with SQL technologies (MySQL,PostgreSQL)Experience working with NoSQL technologies (MongoDB,ElasticSearch)Excellent Programming skills in Python/Java/GoLangBig Data streaming services (Kinesis ,Kafka ,RabbitMQ)Distributed cache systems (Redis ,Memcache)Advanced data solutions (BigQuery, RedShift, DynamoDB, Cassandra)Automated testing frameworks and CI/CD pipelinesInfrastructure orchestration(Docker/Kubernetes/Nginx)Cloud-native tech like Lambda,ASG,CDN,ELB,SNS/SQS,S3 Route53 SES

Core Java, SpringBoot, MicroServices |
- DB2 or any RDBMS database application development |
- Linux OS, shell scripting, Batch Processing |
- Troubleshooting Large Scale application |
- Experience in automation and unit test framework is a must |
- AWS Cloud experience desirable |
- Agile Development Experience |
- Complete Development Cycle ( Dev, QA, UAT, Staging) |
- Good Oral and Written Communication Skills |

Budget: Industry Standards
Location: Bangalore, Pune, Noida and Chennai (WFO)
Positions: Multiple
Skills:
- .net with MVC/Angular/Web API
- Exp in SQL
Mandatory Skills |
Good to Have Skills |
JDK 1.8 + |
PLSQL |
Microservices |
Knowledge of SQL Performance Tuning |
Spring framework |
Experience with Cloud |
Spring Boot |
Knowledge of Cloud Foundry (Pivotal CF) |
Java Messaging Services (JMS) / Kafka / Rabbit MQ |
On-call support experience with PagerDuty, Service Now |
SOAP & REST APIs |
Knowledge of infrastructure monitoring tools like Nagios, New Relic |
SQL |
Knowledge of Splunk |
ORM technologies like Hibernate / IBatis / MyBatis |
Experience working with Lean and Extreme Programming (XP) |
Continuous integration tools like Jenkins/ Bamboo |
NoSQL databases such as MongoDB or any other NoSQL DB |
Code Quality tools/frameworks like Sonar / PMD |
Automated Integration Testing & Contract Testing |
Automated Testing. Unit Testing, |
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Agile development methodologies |
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Responsibilities:
- Resolve complex technical issues and make design decisions to meet the critical requirements of scalable, highly available, multi-tenant enablement of services in the cloud.
- Independently investigate, present options, review and implement completely new functionality OR re-architect an existing solution to meet growing needs
- You will work closely with other development teams, product management, UX, and QA to define and implement a new product offering while ensuring continued functionality.
- Work with various external (application) teams to integrate with the product and help guide the integration.
- You will implement solutions that include database schema, business logic, and some presentation layer work.
- You will use existing methods and best practices in the software industry to create features and platforms with the highest levels of security, reliability, efficiency, and scalability.
- Experience mentoring senior developers.
Requirements:
- 8+ years of experience in software development experience with a proven track record of making technical decisions
- 8+ years of experience in coding in more than one programming language, e.g. Python, GoLang, node.js, etc
- Intimate working understanding of modern web applications from the database to browser
- Intimate understanding of MongoDB and extensive experience with database-driven applications
- Great problem-solving skills and ability to abstract functional requirements
- Excellent communicator in both technical and non-technical contexts
- Experience designing and improving complex software applications
- Experience coaching and mentoring developers at various levels of experience
- You have a sound understanding of programming fundamentals & their application to highly scalable web-based systems.
- You have successfully led a small agile team.
Roles & Responsibilities:
- Design and Build API/Micro services using Spring boot.
- Experience in Spring Reactive programming.
- Exposure to docker and containerization
- Developing enterprise grade highly scalable java-based application
- Writing test cases using Java testing framework like JUnit, Mockito.
- Proficient understanding of code version tools, such as Git, SVN
- Displaying initiative and an ability to lead others, and develop applications team disciplined manner
- Participating in application solutions including assisting with planning and architectural design, development, resolution of technical issues, and application rationalization.
- Utilizing and applying robust analytic thinking with the ability to identify, debug, and resolve technical issues.
- Achieving significant contributions within a small team of developers to lead teams and deliver solutions within an Agile methodology, whilst ensuring quality, timeliness and team-wide adherence to good architectural practice and guidelines.
- Good Experience in Application Software Design and Development, Object Oriented Analysis and Design (OOAD), Software Testing and Debugging.
- Conduct peer code reviews



