Java Developer

We are seeking an experienced Java Developer to join our team supporting Mastercard in O’Fallon, MO. The ideal candidate will have strong hands‑on expertise in Java
, Spring Boot
, and RDBMS technologies (MySQL, Oracle, Postgre

SQL). This role requires strong analytical thinking, excellent communication skills, and the ability to collaborate effectively with cross‑functional teams in a fast‑paced environment. Experience in the payments domain will be a significant plus.

• Lead projects through all stages of the software development lifecycle including requirements gathering, estimation, design, development, testing, and deployment.
• Collaborate closely with Project Architects, Business Analysts, and stakeholders to create high‑level and low‑level technical designs.
• Develop and implement critical components and proof‑of‑concepts for new or complex business requirements.
• Conduct code reviews and ensure adherence to coding standards and best practices.
• Mentor and coach junior developers, fostering a culture of technical excellence.
• Write and review design documentation in coordination with technical writers.
• Perform source control operations including branching, merging, tagging, and conflict resolution using Git or equivalent tools.
• Research and evaluate emerging technologies to improve existing systems and architecture.
• Ensure compliance with organizational policies, security standards, and intellectual property protection.
• Participate in process improvement and knowledge‑sharing initiatives within the organization.

Strong hands‑on experience with Core Java
, Spring Framework (MVC, IOC, AOP),
Hibernate
, JSP
, JPA
, and application servers such as JBoss or Web Logic
.

Expertise in SQL and RDBMS (MySQL, Oracle, Postgre

SQL).

Experience developing and consuming Web Services (JSON, SOAP) and working with XML
.

Proficiency in using Eclipse/MyEclipse IDE
, UML tools (MS Visio), and Microsoft Office (Word, PowerPoint).

Experience writing JUnit test cases and using Maven/Ant and GIT for build and version control.

Strong logical and analytical problem‑solving skills with solid design capabilities.

Excellent communication skills—able to articulate ideas clearly in both written and verbal English.

Knowledge of Design Patterns and Security concepts such as authentication, authorization, and confidentiality, along with related enterprise protocols.

Experience working in Mobile or Payments application domains.

Hands‑on experience with Mockito
, JBehave
, Jenkins
, Bamboo
, and Confluence
.

Familiarity with front‑end technologies such as AJAX
, jQuery
, and Angular
.

Experience with
WS‑Security
, Spring Security
, and Log4j
.

Exposure to Pivotal Cloud Foundry (PCF) for cloud‑native deployments is a strong plus.

Pivotal Cloud Foundry (PCF)

Excellent communication and collaboration skills.

Strong analytical and problem‑solving abilities.

Ability to work effectively in hybrid and cross‑functional team environments.

Experience in the payments domain is an added advantage.

If you are interested please reach out to:

Swasthik ASTRA,
Business Development Manager,
ASTRA CONSULTING CORP
Mobile:  EXT : 2
Email: