Frontend - Angular js, Javascript, JSP, added advantage for RIOTjs
Websocket technologies - Added advantage
Basic understanding of Apache Tomcat

About Ozonetel Systems
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Java Developer – Backend (Spring Boot + WebFlux)
Company Overview
Dive into the galaxy of innovative possibilities and unfold the future with Pattem Digital. We are a leading software product development company specializing in delivering 100+ services across frontend, backend, CMS, and cutting-edge technologies. With a global presence and proven track record, we help businesses scale through agile and efficient software solutions.
Position Overview
We are looking for a skilled Java Backend Developer with strong expertise in Core Java, Spring Boot, and Spring WebFlux. The ideal candidate will be responsible for building scalable backend systems, developing reactive and RESTful APIs, and contributing to high-performance applications.
📍 Location: Whitefield, Bangalore (Onsite – 5 Days/Week)
📅 Experience: 5–6 Years
Key Responsibilities
● Develop and maintain backend services using Java, Spring Boot, and Spring WebFlux
● Design and implement RESTful and reactive APIs for scalable applications
● Work with databases (SQL/NoSQL – MongoDB preferred)
● Implement multithreading, concurrency, and reactive programming for performance optimization
● Collaborate with frontend teams, QA, and product managers
● Debug, troubleshoot, and resolve production issues
● Write clean, maintainable, and efficient code
● Participate in code reviews and maintain coding standards
● Ensure application performance, scalability, and security
Required Qualifications
Technical Skills
● Strong hands-on experience in Core Java (OOPs, Collections, Multithreading)
● Experience with Spring Boot, Spring MVC, and Spring WebFlux
● Good understanding of Microservices architecture
● Experience with MongoDB / SQL databases
● Knowledge of Java Streams, Exception Handling, Concurrency, and Reactive Programming
● Familiarity with Linux environment
● Experience with Git, Maven, CI/CD pipelines
● Understanding of API design, reactive systems, and system architecture
Experience & Education
● 5–6 years of experience in backend development
● Bachelor’s degree in Computer Science or related field
Soft Skills
● Strong problem-solving and analytical skills
● Good communication and teamwork abilities
● Ability to work in a fast-paced environment
● Ownership mindset and attention to detail
Preferred Qualifications
● Experience with Kafka or event-driven architecture
● Exposure to AWS or cloud platforms
● Experience working in Reactive systems / high-throughput applications
● Experience working in Agile environments
Around 4 years of experience in creating and implementing Web-based products using PHP,
MySQL, Ajax, and JavaScript.
Ability to work in an Agile, fast-paced environment, and learn rapidly.
Bachelor degree in computer science, computer engineering or similar.
Expert in HTML, CSS, JavaScript, JQuery, JSON.
Experience in any PHP framework Laravel, CodeIgniter or Zend.
Writing clean, readable, and easily maintainable code.
Must have knowledge of project/task management tools like Jira,
Familiarity with Version Control Tortoise Bitbucket, Git etc.
Understanding of UI, cross-browser compatibility and web standards.
Good English communication skills, written and spoken.
Able to work with minimum supervision as well as perform under pressure and meet
Deadlines.
Qualifications:
- A Bachelor’s degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus
- Hackathon participation and accolades are a plus
Job Role:
- 4+ years of object-oriented Java / J2EE development
- Full SDLC experience (requirements gathering, architecture, development, QA, etc)…
- Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
- Experience with SOAP / REST web services
- Knowledge of SQL
- Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
- Must have worked on any one messaging solutions
- Bonus Points for micro service design and development experience
- Bonus points for any mobile development experience
- Used Agile methodology
- Bonus Points for experience working on Unix, shell scripting & Build Systems
- Experience in performance optimization is an added advantage
What we are scouting for
- BS/MS in computer science or equivalent work experience in IT
- 2+ years’ experience designing and developing applications using Java EE platforms
- A strong hands-on programming knowledge in Core Java including Java 8. To solve the problem given in optimized way.
- Strong knowledge on the Data structure and algorithm.
- Experience developing and designing API integrations using SOAP/RESTful
- Should be able to understand the time complexity of the existing algorithm. Able to compare different algorithms available.
- Expert understanding of the object-oriented design and programming concepts
- Know the fundamentals of Object-Oriented Programming using Java;
- Used SQL & NoSQL solutions
- Experience in GIT/SVN, build tools such as Ant/Maven/Gradle
- Experience in JUnit, Sonarqube, Mockito, Jacoco, Maven & Jenkins
Technical Competency – Nice to have
- Experience in Dependency Injection, Annotation, Validations, Auto Wiring
- Good knowledge in internal working on Memory Management, Transaction management
- Knowledge on DevOps pipeline tools like Jenkins, tools for Code quality scan, tools for security scan
- Spring boot
- Spring MVC
- Any Java Certification
Behavioural Competency
- Strong interpersonal communication skills
- Ability to lead self and team toward common goals
- Excellent oral and written communication, presentation, and analytical skills
- Excellence in technical communication with peers and non-technical cohorts
What you will be doing
- As a self-motivated and enthusiastic member of our team, you will work with extremely talented peers in a fun environment building performance efficient payment authorization services that are highly scalable, configurable and available
- You’ll work in an Agile environment with a focus on problem solving and engineering excellence.
- Worked independently and as a member of a team, determined to make active contributions to the assigned Team
- Flexible and adaptable approach to the roles assigned to you
- Ability to coordinate and prioritize tasks, and work in a fast paced and challenging environment
- Deliver on time under dynamics with a high level of integrity and flexibility, sense of urgency, attention to detail and quality standards
- Make a large impact on the design, architecture, and implementation of cutting edge products
- Work with other team members to investigate design approaches, prototype new technology
and evaluate technical feasibility
- Work in an Agile/Scrum environment to deliver high quality software
- Establish architectural principles, select design patterns and then mentor team members on their appropriate application
share your resume via mail. gsusmipriya@altimetrik
- Contribute to the development of Web Applications Mobile restful APIs.
- Help scale our mobile team processes by practicing "Clean Code" principles for app architecture, branching/versioning, release train, Test Driven Development.
- Advocate for the Web platform e.g: evaluating new frameworks, leading the technical vision at Sri Aurobindo Society
- Deliver applications with enhanced features and capabilities, while also maintaining and continually improving turnaround time and quality
- Mentor and lead a team of developers; Lead code reviews and team meetings
- Keep track and reviews existing projects to identify bottlenecks, bugs, performance issues and involve the team to study and learn from existing projects.
- Proficient in one core codebase (CodeIgnitor, Drupal, Laravel, Magento); Laravel is mandatory
- Thoroughly test work prior to deployment into production.
- Accurately estimate the amount of effort required to complete a task.
- Troubleshoot and fix any issues relating to PHP programs
- Ensure smooth operations of web processes and infrastructure
- Take up system analysis, design, documenting responsibilities, and get it done in time. He/ she should be able to perform code analyzing and reading exercises for current and previous projects
About us :
BharatPe was co-founded by Ashneer Grover and Shashvat Nakrani in 2018 with the vision to make financial inclusion a reality for Indian merchants.
BharatPe launched India's first UPI interoperable QR code, first ZERO MDR payment acceptance service, and first UPI payment backed merchant cash advance service.
In 2020, post-Covid, BharatPe also launched India's only ZERO MDR card acceptance terminals - BharatSwipe. Currently serving over 50 lakh merchants across 35 cities, the company has grown business 30x in 2019 and is a leader in UPI offline transactions, having processed 5 crore+ UPI transactions a month (annualized TPV of US$ 5+ Bn).
INVESTORS :
- The company's list of marquee investors includes Beenext, Sequoia, SteadView Capital, Ribbit Capital, Coatue Management LLC, Insight Partners, and Amplo.The company has already facilitated disbursement of over Rs. 500 crores to its merchants since launch.
- Total Funding : $283.5M
- Latest Funding : Series D
- Why Join BharatPe ?
- Quality of work : Our current tech setup is serving us well for now. But, at our pace of growth, we know we will outgrow it soon. So, we are rebuilding our tech stack from scratch. Be it infrastructure as code, containerization and orchestration, event driven microservices, stream processing, or intrusion kill chain, we have a clear roadmap as well as prior experience of building modern state-of-the-art technology architecture. This is an excellent opportunity to build a world class tech setup from scratch and take it to scale.
- High operating freedom : We believe in ownership and accountability rather than command and control. Our teams are structurally empowered to operate with a lot of freedom, with effective mechanisms built within the teams to help with sound yet quick decision making.
- Experimentation and risk taking is encouraged to achieve ambitious goals.
- Competitive compensation.
- Cash and high growth equity.
- We pay good cash and our equity is growing at a very fast pace.
- We have a good team, proven business, and ample capital. Thus, the downside risk is low and upside potential is high.
- We are accelerating full throttle.
- This is the best stage to join a startup.
- Positive culture.
- We believe new ideas can come from everywhere, so we are always on the lookout. Instead of carrot and stick approach, we appeal to internal motivation to excel.
- We are strong team players - we build on each other's strengths and have each other's back in failures.
Requirements :
- Innovative and self-motivated with passion to develop complex and scalable applications.
- 2-5 years of experience in software development with strong focus on algorithms and data structures.
- Strong coding and design skills with prior experience in developing scalable & high availability applications using Core Java/J2EE, Spring, Hibernate.
- Work experience with Relational databases is required (Primarily MySQL).
- Prior work experience with Non-Relational databases (primarily Redis, MongoDb) is an added plus.
- Strong Analytical and Problem Solving Skills.
- B Tech/BCA from IIT or BE in computer science from a top REC/NIT.
We are an IIT Bombay incubated, early stage healthcare start up developing a mobile based Ai technology to help reduce health risks for women during their pregnancy. Our Founders are Harvard and Columbia University alums with extensive experience in digital health in the US and India.
Role: Back end developer ( Python + Flask/Django, Location Mumbai, Marol):
Must have:
- 1-4 years hands on experience in Core Python with preferably Flask framework for complex web and mobile applications.
- Deployment experience
- Must have experience with Mongodb, MySQL and AWS
- Experience in Redis, Aerospike
- Good command of API development and deployment ( G Unicorn, Supervisor, Jenkins) Algorithms, system design, OOPS concepts.
- Agility and flexibility to in start up environement with focus on customer, excellent communication skills, and high level of responsibility and responsiveness.
- Project management, scheduling, allocation and delivery.
- Proven experience in agile development, sprint planning and backlog management.
Good to Have:
Experience in Machine Learning, Dialogflow or Rasa for NLP,
CartX is a small, fast-growing, and remote-first company. We are a high converting one-page checkout and post-purchase one-click upsell for thriving eCommerce stores. We are looking for a Senior Software Engineer to join our mission and work on our ambitious product roadmap. Ideal candidates have a solid technical background on complex systems.
→ What you will be doing:
– Solve engineering problems that affects hundreds of customers
– Develop and launch end-to-end new key features
– Take ownership and responsibility of challenging tasks
– Interact and collaborate with the team
– Research, innovate and propose new ideas that can lead to new projects
– Play an important role by shaping our company’s best practices and culture
– Learn fast and adapt quickly
→ Required
– 5+ years of experience as a Software Engineer
– Experience on LAMP
– Experience on Bitbucket
– Knowledge on API’s such as Twilio, Stripe and others
– Great communications skills
– Fluent in English (written and speaking)
→ What We Offer
- Work remotely from home or any co-working space
- Work with a top-notch engineering team
- Unlimited vacation policy
- Ownership and autonomy over exciting tasks
- Be part of an exciting fast-growing startup











