We are looking for Advance Java developers who want to help us design cutting edge scalable products to meet our rapidly growing business. We are building out a team and looking for multiple levels but you should have at least 6+ years of programming experience.
Key Responsibilities
- Build high availability and extreme reliable high volume transactional systems.
- Deliver reliable solutions that handle massive data and high traffic.
- Complete ownership of problem-free execution of owned modules and solutions.
- Focus on code optimization, code quality, maintainability etc.
Skills required
- Hands-on experience in Core J2EE or Core Java (collection, multithreading).
- Proficiency in Spring, Hibernate, Kafka, JDBC.
- Excellent data structure & algorithm and problem solving skills.
- Strong working knowledge of Databases – MySQL/NoSQL, OS - Windows/Linux.
- Experience and knowledge of open source tools & frameworks, broader cutting edge technologies around server side development.
- Should be an active contributor to developer communities like Stackoverflow, Topcoder, Github, Google Developer Groups (GDGs).
- Customer-focused, react well to changes, work with teams and able to multi-task.

About Paytm
About
About Us:
Paytm is India’s leading digital payments and financial services company, which is focused on driving consumers and merchants to its platform by offering them a variety of payment use cases. Paytm provides consumers with services like utility payments and money transfers, while empowering them to pay via Paytm Payment Instruments (PPI) like Paytm Wallet, Paytm UPI, Paytm Payments Bank Netbanking, Paytm FASTag and Paytm Postpaid - Buy Now, Pay Later. To merchants, Paytm offers acquiring devices like Soundbox, EDC, QR and Payment Gateway where payment aggregation is done through PPI and also other banks’ financial instruments. To further enhance merchants’ business, Paytm offers merchants commerce services through advertising and Paytm Mini app store. Operating on this platform leverage, the company then offers credit services such as merchant loans, personal loans and BNPL, sourced by its financial partners.
Why join us:
- Because you get an opportunity to make a difference, and have a great time doing that.
- You are challenged and encouraged here to do stuff that is meaningful for you and for those we serve.
- You should work with us if you think seriously about what technology can do for people.
- We are successful, and our successes are rooted in our people's collective energy and unwavering focus on the customer, and that's how it will always be.
Connect with the team
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Job Description – Java Senior Developer
Job Title: Java – Senior Developer
Location: Hyderabad (Hybrid)
Job Summary: We are looking for a highly skilled Java Developer to join our team and contribute to the design, development, and maintenance of scalable applications. The ideal candidate should have strong hands-on experience in Core and Advanced Java, Spring Boot, Microservices, and cloud platforms like AWS. They must possess excellent problem-solving skills, clean coding practices, and an understanding of RESTful architecture. This role requires proficiency in front-end technologies (Angular/React), database management, and containerization (Docker/Kubernetes) to build high-performance applications.
Key Responsibilities:
- Develop, test, and maintain scalable Java applications with Spring Boot and Microservices architecture.
- Implement OOP principles, design patterns, and clean coding practices to ensure maintainability.
- Work on Spring Security, Spring Data JPA, Hibernate, and ORM frameworks for database management.
- Design and develop RESTful APIs following industry best practices.
- Utilize front-end frameworks (Angular, React, JavaScript, jQuery, HTML, CSS) to build user-friendly interfaces.
- Work with cloud platforms (AWS, Azure, or GCP) and containerization tools like Docker and Kubernetes.
- Optimize application performance by writing efficient, scalable, and secure code.
- Implement CI/CD pipelines and automate deployments using Docker, Kubernetes, or EKS.
- Write unit and integration tests to ensure robust and error-free code.
- Collaborate with cross-functional teams to enhance application functionality and user experience.
Required Qualifications & Skills:
- 5-10 years of hands-on experience in Core and Advanced Java development.
- Strong knowledge of multithreading, exception handling, servlets, and filters.
- Expertise in Object Oriented Design.
- Experience in designing and developing Microservices-based architectures.
- Proficiency in Spring Boot, Spring Security, Spring REST, and Hibernate (JPA).
- Strong SQL scripting skills and knowledge of relational databases (MySQL, SQL Server, Oracle, etc.).
- Hands-on experience with UI frameworks (Angular, React, JavaScript, TypeScript).
- Working experience with cloud platforms (AWS, Azure, or GCP).
- Knowledge of CI/CD pipelines, Docker, Kubernetes (EKS), and RESTful application integration.
- Understanding of OOP, SOLID principles, and clean code best practices.
- Strong problem-solving, analytical, and debugging skills.
- Bachelor's degree in Computer Science, Software Engineering, or a related field.
About TechGrit:
TechGrit is a custom software development services company dedicated to accelerating business growth through high-performing Agile teams. We specialize in delivering diversified and unique solutions across various industries, including ConstructionTech, HealthTech, FinTech, and HighTech. Our team of champion developers works closely with clients to design and develop custom software solutions that meet their business needs.
Our Mission:
To deliver high-quality and cost-effective software solutions that help companies and entrepreneurs achieve their goals and stay ahead of the competition.
Our Vision:
To be the most trusted technology partner for our customers, accelerating their business growth through innovation, reliability, and excellence by best-in-class people.
Our Core Values:
· Customer Obsession
· Excellence
· Innovation
· Teamwork
· Integrity
· Empathy
Join TechGrit and be part of a team that values innovation, excellence, and teamwork. We are committed to creating an inclusive environment where all employees feel valued and respected. If you are passionate and want to contribute to our mission and vision, we would love to hear from you.
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?
Roles & Responsibilities JOB TITLE: AEM Developer - Senior
RESPONSIBILITIES:
1. Participation in software development and maintenance
processes as per quality requirements, procedures and best
practices applicable.
2. Implementing, optimizing and supervising efficiency of IT
systems in accordance with specific standards, resolution or
escalation of problems, as appropriate.
3. Drawing up technical documentation.
4. Developing knowledge in scope of information technology used.
5. Developing knowledge in scope of best practices and standards
of creating software.
6. Developing soft skills in scope of effective communication and
efficient teamwork, solution presentation and knowledge sharing.
7. Interpreting business cases, preparing specifications and
analyzing functional and technical requirements.
8. Designing solutions and creating documentation, estimating
individual scope of works and time consumption of works.
9. Within the team and project/services, proactively identifying
problems and proposing measures to increase the level of services.
10. Developing knowledge in scope of information technology
used.
11. Developing knowledge in scope of best practices and standards
of creating software.
12. Spreading the knowledge throughout the organization by
educating and supporting less experienced Specialists.
13. Maintaining industry standards and practices in projects.
14. Performing tasks assigned by the superior.
PROFESSIONAL EXPERIENCE& TECHNICAL SKILLS
1. Minimum 3 years of experience in work related to CQ/AEM
development.
2. Minimum 5 years of experience in work related to Java
development in IT sector.
SOFT SKILLS:
1. Independence in performance of tasks assigned.
2. Team and end user communications skills.
3. Skills to acquire knowledge and put it in practice.
4. Work time estimation based on functional or technical
requirements.
5. Recommending employment in the case of reviewing technical
knowledge of candidates in recruitment process.
6. Work time estimation.
7. Designing and supervising implementation of solutions.
SPECIAL QUALIFICATIONS: Nice to have: AEM 6 Developer
certification
Skills Primary Skills –
1. AEM including Sling Models
2. Apache Sling
3. JCR
4. Sightly (must)
Secondary Skills –
1. OSGi (Apache Felix),
2. Java, JavaEE (Servlet, Filter, JSP)
3. Git
4. Junit
5. Maven
6. REST
7. Object Oriented Design Patterns, Basic HTML + JavaScript
Experience Total Experience – 4-6 years
Relevant Experience – 4-6 years
Qualification Required to perform the
Job (Any Certifications if Needed)
Bachelor’s in information technology or equivalent qualifications.



Requirement:
- Min 2-3 Year Experience. Preferably in the E-commerce domain.
- Proficient with both MySQL and NoSql Databases (Elastic, Mongo)
- Strong hold on PHP and preferably good knowledge of Python
- Experience with JavaScript/JQuery
- Ability to do software design for a enterprise web application
- Working knowledge of a MVC front-end framework
- Proficient in HTTP protocol, REST APIs, JSON
- Ability to do database design and modeling
- Proficient in OOPS concepts and writing code using classes
- Ability to write modular and clean code
Role:
- Software Development of various product line
- Creation web-services and optimization for existing and new feature rollouts
- Collaborate with Product Managers and design solutions
- Develop very high sense of ownership, the zeal to build scalable applications
- Build customer facing technology product
- Individual Contributor
Experience in Design Patterns, Design principles & memory Management.
- Strong understanding of data structures and algorithms
- Sound understanding of object-oriented programming and excellent software design skills.
- Good experience of SOA/Microservices/Restful services and development of N-tier J2EE / Java Springboot applications (API- s).
- Strong understanding of database design and SQL (mySql/mariaDB) development
- Should have experience in Apache Kafka, RabbitMQ, or other Queueing systems.
Delivery of High Quality, Scalable and Extensible systems, and applications on-time and on-budget.
-Adoption and Evolution of the software engineering practices and tools within the organization
- Keep in sync with the latest technology developments and open source offerings. - Collaborate with other technology and business teams within the organization to provide efficient robust solutions to the problems.
Work Experience: 3 to 5 years
Official Notice Period – Immediate to 15 days ONLY
Excellent communication skills
Job Location – Mumbai
Mandatory Skills – Java 8, Spring boot, Hibernate, Microservices, Angular
Required Skills:
- 2+ years experience developing software using PaaS/APIs, Java, Docker, Bash, Json, Node js, sql / postgres, RestAPI, Swagger.
- Java 8 / Tomcat 8.5 / Jersey REST
- Spring MVC/Spring Boot/Microservices
- Hibernate
- Strong desire to learn
- Knowledge of cutting-edge technologies.
- Basic understanding of design patterns
- Comfortable working with Subversion, Git, or similar source control environments
- Must be willing to do Test Driven Development.
- Strong communication skills, must embrace working in a highly-collaborative environment
Preferred Skills:
- Good understanding of web-service technologies, Restful APIs
- Some exposure to a version control system such as Git or Subversion
- Proven understanding of software development techniques, concepts and processes
- Driven and self-motivated.
- Works creatively to solve challenging problems
Experience: 2+
Location: Noida (Currently WFH)/ PWFH
Notice Period: Immediate to 15 days
Java/ Core Java
Frames works: Springboot
Web Services: REST API
Spring stack: Spring integration, Jersey, Spring boot, annotations based Spring configuration, Spring Data
Micro services – Must have
Roles & Responsibility:
Requirement gathering & understanding, effort estimation, technical design, project planning and monitoring in Agile environment
Work proactively & independently to address project requirements, and articulate issues/challenges with enough lead time to address project delivery risks
Providing expertise in technical analysis and solving technical issues during project delivery
Customer interfacing - understand customer requirements, propose technical solutions
Full Software Development Lifecycle (Agile)
Code reviews, test case reviews and ensure code developed meets the requirements
Component Design/ Coding/ Unit Testing/ Debugging / Test Driven Development / Continuous Integration
Carry out adaptive changes necessitated by changes in Business Requirements and Technology
- 2+ years of experience building REST APIs with Java
- 1+ years of experience in maintaining REST APIs documentation.
- 2+ years of experience programming and delivering in a production environment
- Expertise working with data structures and algorithms
- Proficiency in object-oriented programming and experience applying modern design patterns.



