Walk-in | Senior Java Backend Developer

Ascendion Engineering; Bengaluru; On-site; INR 1,200,000 - 2,100,000; Full time

Job summary

Ascendion Engineering in Bengaluru is seeking a Sr Java Backend Developer to design and implement backend services for global payment processing systems. You will work on Java 17/21, Spring, Hibernate, REST services, and Oracle databases, ensuring high code quality with JUnit and cucumber-based testing.

The role requires independent work ethic, strong problem-solving, and clear communication. You will engage in end-to-end development, performance tuning, and production support across distributed

Qualifications

• Hands-on Java development with Spring, Hibernate and REST services.
• Strong experience in Oracle databases and SQL.
• Proven unit testing with JUnit and 90%+ code coverage.
• Unix/Shell scripting basics for automation and deployments.
• Experience with microservices architecture and Spring Boot.
• Familiarity with build tools Maven/Gradle and CI/CD basics.

Responsibilities

• Understand business requirements and payment processing flows globally.
• Collaborate with product to document requirements and estimates.
• Code new features and modify existing programs.
• Participate in code reviews with leads and SMEs.
• Write unit tests and cucumber-based end-to-end tests.
• Provide UAT and production support during warranty period.
• Prepare implementation/back-out plans and handover docs.

Skills

Java 17/21

J2EE

Spring Framework

REST APIs

Hibernate

Oracle

JUnit

Unix Shell

Microservices

Spring Boot

Maven

Gradle

JIRA

Docker

Kubernetes

Tools

JMeter

JProbe

Black Duck

SonarQube

Maven

Gradle

Docker

Kubernetes

JIRA

Job description

Job description

Job Description: Sr Java Backend Developer

Responsibilities will include:

• Understanding Business Requirements and Functional Specifications. Ability to understand high level payment processing flows and stages in various types of payment processing in the world (clearing systems of the respective central banks)


• Work with business/Product to document high level and detailed requirements


• Providing estimates for required development


• Creation/ update of Detailed Design Specifications, Program Specifications for 3 tier or micro service applications


• Coding of new programs and changes to existing programs.


• Get the code reviewed by leads and SMEs and participate in code reviews.


• Write JUnits and end to end testing using frameworks like cucumber


• Providing technical support for User Acceptance Testing


• Creation of Implementation/ Back out Plans and Support Handover Documents


• Providing technical support for Production Implementations, and post-implementation support during implementation warranty period

Key Skills

• Application development skills


• Strong analysis & problem-solving skills. Strong in fundamentals like data structures and algorithms.


• Excellent communication skills - both verbal and written


• Ability to work independently with limited supervision


• Proven ability to use own initiative to resolve issues


• Full ownership of projects/tasks


• Ability and willingness to work under pressure, on multiple concurrent tasks, and to deliver to agreed deadlines


• Eagerness to learn


• Strong team working skills


• Understanding of Agile methodologies.


• Experience in working with groups that are set-up across globe.


• Work with requirements which may not be available to the last level of detail.

Primary skills – Must have:

• Proven hands-on experience in Java 17/21, J2EE, Spring Framework, web services (REST) and hibernate.


• Strong experience in using RDBMS (Oracle).


• Demonstrated experience in writing Junits for unit testing to achieve >90% code coverage.


• Experience in basic Unix / Shell scripting.


• Hands on experience in fine tuning application response / performance testing. Experience in using tools like JMeter/JProbe etc.


• Experience in Micro service, Spring Boot.


• Experience in using code scanning tools like black duck and tools like Sonar etc.


• Hands on experience in using build automations tools like maven or gradle


• Familiarity with JIRA

Good to have

• Basic understanding of distributed coaching (gemfire/redis), Cloud (AWS or GCP) offerings.


• Basic understanding of CI/CD, experience of using Jenkins


• Basic understanding of infrastructure, deployment architecture - webserver, app server, database server, load balancer, HA setup, Sustained Resiliency)


• Familiarity with ELK Stack (Elastic search, logstash, Kibana) for monitoring


• Understanding of Docker, Kubernetes


• Knowledge of Casandra or MongoDB


• Distributed messaging experience such as Kafka

Advantage:

• Experience in BFSI industry, exposure to core banking and payments


• Knowledge of industry-wide technology trends and best practices


• Some recent successful experience in a properly functioning agile team would be extremely advantageous.

Work Mode :- All 5 days work from Office, Bengaluru Location