
Switch Developer/ Integration/ Java Developer
· Strong knowledge of core java & spring boot
· Hands-on experience on payment switch integration
· Good knowledge of ISO8583 and EMV Data.
· Hands-on experience on any database like MySQL, oracle...etc.
· Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines.
· In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card
· Well versed with payment standards and ISO8583 and EMV data (mandatory),
· Hands on experience with Switch payment integration
· Resolve technical issues for designers and developers during project lifecycle
· Excellent problem solving/troubleshooting skills on Java/J2EE technologies
· Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs.
· Excellent communication (written and verbal) and interpersonal skills
Payment card industry preferred

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Position Overview
We are seeking a skilled Developer to join our engineering team. The ideal candidate will have strong expertise in Java and Python ecosystems, with hands-on experience in modern web technologies, messaging systems, and cloud-native development using Kubernetes.
Key Responsibilities
- Design, develop, and maintain scalable applications using Java and Spring Boot framework
- Build robust web services and APIs using Python and Flask framework
- Implement event-driven architectures using NATS messaging server
- Deploy, manage, and optimize applications in Kubernetes environments
- Develop microservices following best practices and design patterns
- Collaborate with cross-functional teams to deliver high-quality software solutions
- Write clean, maintainable code with comprehensive documentation
- Participate in code reviews and contribute to technical architecture decisions
- Troubleshoot and optimize application performance in containerized environments
- Implement CI/CD pipelines and follow DevOps best practices
- Required Qualifications
- Bachelor's degree in Computer Science, Information Technology, or related field
- 4+ years of experience in software development
- Strong proficiency in Java with deep understanding of web technology stack
- Hands-on experience developing applications with Spring Boot framework
- Solid understanding of Python programming language with practical Flask framework experience
- Working knowledge of NATS server for messaging and streaming data
- Experience deploying and managing applications in Kubernetes
- Understanding of microservices architecture and RESTful API design
- Familiarity with containerization technologies (Docker)
- Experience with version control systems (Git)
- Skills & Competencies
- Skills Java (Spring Boot, Spring Cloud, Spring Security)
- Python (Flask, SQL Alchemy, REST APIs)
- NATS messaging patterns (pub/sub, request/reply, queue groups)
- Kubernetes (deployments, services, ingress, ConfigMaps, Secrets)
- Web technologies (HTTP, REST, WebSocket, gRPC)
- Container orchestration and management
- Soft Skills Problem-solving and analytical thinking
- Strong communication and collaboration
- Self-motivated with ability to work independently
- Attention to detail and code quality
- Continuous learning mindset
- Team player with mentoring capabilities
Job description
Note: Applications are welcome from candidates who are immediate joiners or currently serving their notice period.
Key Responsibilities:
- Design, develop, and test low-latency, high-volume client-facing applications.
- Develop and maintain enterprise-scale, n-tier applications for the investment banking/capital markets domain.
- Implement microservices-based solutions using Spring Boot and other modern frameworks.
- Work extensively with Core Java 5.0 and above, Spring Framework, and CXF
- Optimize applications for multi-threading and high-performance server-side development
- Collaborate with cross-functional teams to design and implement scalable, secure, and efficient solutions
- Work with RDBMS (preferably Sybase) to handle large-scale data processing.
- Develop and maintain applications on Unix/Linux environments
- Utilize enterprise application design patterns to build robust and scalable solutions.
- Troubleshoot and resolve complex technical issues while ensuring application stability and performance.
Required Skills & Experience:
- 5 to 10 years of hands-on experience in Java development
- Strong knowledge of microservices architecture and cloud-based deployment.
- Expertise in Spring Framework, Spring Boot, and CXF
- Experience in developing and optimizing applications for high-volume, multi-threaded environments
- Solid understanding of financial domain applications, sales, and trading platforms
- Proficiency in working with relational databases (Sybase preferred)
- Familiarity with Unix/Linux environments and shell scripting.
- Strong analytical, problem-solving, and communication skills.
- Ability to articulate and present design ideas effectively.
Company: Fineline Technologies (www.finelinetech.com)
Founded: 1998
Headquarters: Norcross, Georgia, USA.
Global Presence: Operations in the U.S., Canada, China, Europe, India, and Africa
Work Mode: Hybrid
We are looking for a highly skilled Java Developer to join our team for permanent, long-term projects, focusing on managing IoT and RFID projects as well as barcode printing solutions. The ideal candidate will have extensive experience in Java development, particularly with Spring Boot, Angular, and RESTful services. They should excel in designing and implementing scalable, reliable, and efficient Java applications. This role involves designing, developing, and maintaining high-quality software solutions, ensuring high performance and responsiveness. Additionally, the candidate will collaborate with stakeholders to understand business requirements, propose optimal solution approaches, and ensure the successful implementation of Java-based solutions.
DUTIES AND RESPONSIBILITIES:
- Develop, test, and maintain Java applications using modern frameworks like Spring Boot.
- Design and implement RESTful services and web applications.
- Troubleshoot, debug, and optimize application performance.
- Actively engage in product design discussions and contribute to application architecture development.
- Participate in code reviews and pair programming sessions.
- Stay updated with the latest industry trends and technologies.
QUALIFICATIONS:
- Qualifications: B.E/B.S/ M.S in Computer Science, B. Tech/M. Tech in Information Technology, MCA
- Experience: Advanced knowledge of Java programming with 8+ years of experience
- Java Programming: Proficiency in Java and its associated technologies, such as J2EE, JDBC, Servlets, JSP, and JavaFX.
- Spring Framework: (Nice to have UX/UI experience) Expertise in Spring Boot, Spring MVC, and other Spring modules for building robust applications.
- Web Services: Experience with RESTful and SOAP web services, including designing and implementing APIs.
- Front-End Technologies: Knowledge of front-end technologies like Angular 16+, React, HTML, CSS, and JavaScript.
- Database Management
- Microservices Architecture: Understanding of microservices architecture and containerization tools like Docker and Kubernetes.
- Software Development Lifecycle (SDLC) Agile
- Code Quality and Testing: Familiarity with Test Driven Development (TDD), unit testing, and code review processes.
Nice to Have skills
- Experience with barcode printing and scanning.
- Understanding of RFID encoding and scanning technologies.
- Experience with cloud platforms like AWS, Azure.
Salary
As per industry standard
About us:
TAPPP(https://tappp.com/) is building the next-generation digital platform by leveraging cell-based architecture to integrate technologies like Artificial Intelligence, Rules, Workflows, Microservices, FaaS (Function as a Service), Micro-frontends, and Micro apps to create a highly extensible and cutting-edge technology platform that brings together sports fans with broadcasters, sports teams, and sportsbooks to create a marketplace for all aspects of sports and we are available across platforms via the Web, Mobile, Roku, and Tablets.
Building out this brand presents significant product and engineering challenges. At the center of solving those challenges is the TAPPP Product Engineering team which is responsible for the TAPPP product end to end.
TAPPP is led by a very able leadership team drawn from Industry leaders from companies like ESPN, Amazon, Blackhawk, Kargocard, Visa, and
many others.
The organization is flat, processes are minimal, individual responsibility is big, and there is an emphasis on keeping non-productive influences out of the everyday technical decision-making process. Upholding these philosophies will be imperative as we execute our aggressive plan of global expansion over the next 2 years.
Who are we looking for:
A coding enthusiast who loves writing elegant code and developing software systems.
As a senior java developer, you will be a part of the core product development team that is responsible for building high-performant components of the TAPPP platform.
Your responsibility:
- You will be responsible for designing, coding, reviewing, testing, and bug-fixing different modules of the software product that needs to work seamlessly across different environments.
- Write production-quality code in Java, J2EE, and Spring
- You will work in an agile team, working on the TAPPP revolutionary platform. You‘ll be using cutting-edge solutions (Spring Boot, Docker, Kafka, Redis, Continuous Delivery) for creating and maintaining high-load distributed services that are part of our messaging platform.
Mandatory technical skills:
- Hands-on experience with
- Java 1.7+
- RDBMS (MySQL/PostgreSQL)
- JPA (Hibernate or any other ORM framework)
- Spring Boot, Spring MVC, Spring Security
- Hands-on experience in writing extensible RESTful APIs
- Hands-on in Java development (all facets of development) with a sound understanding of OOAD.
- Should have excellent debugging, code review, and design review skills
- Should have a sound understanding of a Microservice based architecture
Good to have technical skills:
Kafka
GraphQL
Redis
AWS (ECS, Cloudwatch)
Other
- Strong independent contributor
- Comfortable working in a start-up environment
The position is based in Pune, India.
Role Description
This is a full-time hybrid role for a Python Developer. The Python Developer will be responsible for back-end web development, software development, object-oriented programming, programming, and databases. The role is located in Navi Mumbai but offers flexibility for some remote work.
Qualifications
- Back-end web development and software development skills
- Proficiency in object-oriented programming and programming languages, specifically Python
- Experience with databases, such as MySQL and PostgreSQL
- Experience with source code management tools, such as Git
- Strong problem solving and analytical skills
- Bachelor's degree in Computer Science, Computer Engineering, or related field
- Experience with algorithm design and analysis is a plus
- Experience with financial markets and trading is a plus
Required Skills:
- Candidate must have 3-4 years’ experience .
- Proficiency in Python programming language
- Strong knowledge of Django and Flask frameworks
- Experience in developing and maintaining backend applications
- Understanding of RESTful APIs and database management
- Familiarity with version control systems, such as Git
- Good problem-solving and communication skills
- Proficiency in Python programming language
- Strong knowledge of Django and Flask frameworks
- Experience in developing and maintaining backend applications
- Understanding of RESTful APIs and database management
- Familiarity with version control systems, such as Git
- Good problem-solving and communication skills
• B. E. /B. Tech. in Computer Science or MCA from a reputed university.
• 3.5 plus years of experience in software development, with emphasis on JAVA/J2EE Server side
programming.
• Hands on experience in core Java, multithreading, RMI, socket programing, JDBC, NIO, webservices
and design patterns.
• Knowledge of distributed system, distributed caching, messaging frameworks, ESB etc.
• Experience in Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database.
• Additionally, knowledge of HBase, Hadoop and Hive is desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Experience as a participant in agile methodologies.
• Excellent written and verbal communication skills and presentation skills.
• This is not a fullstack requirement, we are looking for a purely backend expert.
- 5 years experience with the Django framework
- Experience with building APIs (REST or GraphQL)
- Strong Troubleshooting and debugging skills
- React.js knowledge would be an added bonus
- Understanding on how to use a database like Postgres (prefered choice), SQLite, MongoDB, MySQL.
- Sound knowledge of object-oriented design and analysis.
- A strong passion for writing simple, clean and efficient code.
- Proficient understanding of code versioning tools Git.
Experience:
- Min 5 year experience
- Startup experience is a must.
Location:
- Remote developer
Timings:
- 40 hours a week but with 4 hours a day overlapping with client timezone. Typically clients are in California PST Timezone.
Position:
- Full time/Direct
- We have great benefits such as PF, medical insurance, 12 annual company holidays, 12 PTO leaves per year, annual increments, Diwali bonus, spot bonuses and other incentives etc.
- We dont believe in locking in people with large notice periods. You will stay here because you love the company. We have only a 15 days notice period.
You will be part of a talented software team that works on mission critical applications. Candidates should be willing to increase his/her circle of competence by researching for solutions in handover mannual and online resources. Ability to work independently is highly appreciated.
Requirements :-
- Graduate in Computer Science, Engineering or a related subject.
- 2+ years proven hands-on Software Development experience in JAVA.
- Perseverent in solving coding problems.
- Understanding of concepts related to .xml and .xsd files like targetNamespace, schema, xml datatypes, linkbases, arcs etc.
- Strong knowledge and hands-on experience of Java OOPs concepts, inheritance, abstract classes, interfaces, generics, exception handling and multithreading.
Good to have :-
- Experience with XML parsers like SAX.
- Experience with JSON file processing libraries like GSON.
- Dependency and build management using Maven scripts.
- Familiarity with Tomcat deployment.
- Familiarity with Spring Boot.
- Familiarity with Git/SVN for version control.
Responsibilities :-
- Developing features for validation engine.
- Attending client queries and assisting the clients in product integration.
- Catchup with the XBRL domain asap.
- Debugging and fixing bugs in the codebase. Testing changes for impact using available test harnesses.
● Writing reusable, testable, and efficient code
● Design and implementation of low-latency, high-availability, and performance efficient
applications.
● Integration of user-facing elements developed by front-end developers with server-side
logic.
● Implementation of security and data protection
● Integration of data storage solutions
**Backend Developer Requirements:**
● Expert in Python, with knowledge of Django Web Framework.
● Familiarity with some ORM (Object Relational Mapper) libraries.
● Working knowledge of MySQL.
● Fair understanding of building RESTful APIs.
● Bonus points for Celery, RabbitMQ.
● Worked with Django application deployment on AWS.
● Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3.
● Understanding of accessibility and security compliance.
● Knowledge of user authentication and authorization between multiple systems, servers,
and environments.
● Familiarity with event-driven programming in Python.
● Able to create database schemas that represent and support business processes.
● Strong unit test and debugging skills.
● Proficient understanding of Git.
We are looking for passionate and self-driven Software Engineers to join our Bangalore engineering center. You would be responsible for designing and developing world-class and truly differentiated software products in the online travel space.
Primary Responsibilities:
- Development & maintenance of Cleartrip’s product lines
- Involved in entire lifecycle including analysis, development, fixing, and monitoring of issues on the assigned Cleartrip product lines
- Unit test cases – Review and writing
- 2+ years of Product Development experience
- Java, Spring Framework preferred
- Solid experience with databases (Oracle/MySQL) – a must
- Excellent OO and design skills
- Experience with Test Driven Development within a continuous Integration environment (Lunt, CruiseControl, etc)
- BE/B.Tech Computer Science Personality Traits/Attributes:
- Excellent communication skills
- Excellent interpersonal skills – team player & desires to works closely with teammates, QA & product teams
- Problem-solving skills – Ability to research, analyze & find solutions independently.










