Full Stack Java Developer/Java Backend Developer

Focus America Inc.
St. Louis, United States of America
yesterday

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Intermediate

Job location

St. Louis, United States of America

Tech stack

API
Agile Methodologies
Apache HTTP Server
Tomcat
Application Testing
Authentication Protocols
Azure
Software Design Patterns
Fault Tolerance
Github
JSON
JUnit
Key Management
Log4j
Maven
OAuth
Object-Oriented Software Development
Oracle Applications
Public Key Infrastructure
Systems Development Life Cycle
Redis
Mockito
RSA (Cryptosystem)
Software Systems
Strategies of Testing
Web Services
Data Logging
Spring Cloud
Autoscaling
System Availability
Software Security
Containerization
Angular
Kafka
Front End Software Development
REST
Splunk
Spring Batch
Dynatrace
Docker
Jenkins
Ci Server
Microservices

Job description

Java Spring Boot / Spring Batch Object-Oriented Design and Design Patterns Microservices Architecture RESTful APIs, Web Services, JSON Apache (Tomcat/HTTP) PCF / Azure Cloud Platforms Docker / Containerization Oracle, Redis Kafka / Messaging Spring Cloud (Gateway, Config) Resilience4j (Retry, Circuit Breaker) Open Telemetry, Dynatrace, Micrometer Log4j / Splunk JUnit, Mockito, Karate, Testing Frameworks Maven / CI-CD Tools (Jenkins, GitHub) Angular / Frontend frameworks Agile Development Practice

Nice to Have Skills:

Detailed Job Description: Responsible for the analysis, design, development and delivery of software solutions. Develop, customize, and test applications to integrate to Mastercard's specifications

Role 3 to 8 years of experience in delivering secure solutions in Financial Services Sector or related field. Accountable for systems development prioritized initiatives supporting Mastercard Send Plan, design and develop technical solutions and alternatives to meet business requirements in adherence with Mastercard standards, processes and best practices. Adapt to the technical artifact templates per the needs of the project and technology. Hands on full stack developer with day-to-day system development and maintenance activities to meet service level agreements (SLAs) and create solutions with high level of innovation, cost effectiveness, high quality and faster time to market. Perform and contribute to test strategy/test design, performance benchmarking, release rollout and deployment plans and contingency/back-out plans. Contribute ideas to help ensure that required standards and processes are in place and followed. Research and evaluate assigned work to deliver solutions.

Requirements

Must be high-energy, detail-oriented, proactive and can function under pressure in an independent environment Possesses strong communication skills -- both verbal and written - and strong relationship, collaborative skills and organizational skills Must provide the necessary skills to have a high degree of initiative and self-motivation to drive results. Willingness and ability to learn and take on challenging opportunities and to work as a member of matrix based on diverse and geographically distributed project team. Ensure end-to-end visibility and continuous monitoring of application, Oracle, and Redis performance using Open Telemetry and Dynatrace aligned to SLAs. Design systems for high availability with retries, circuit breakers, graceful degradation, and recoverability across APIs and batch jobs. Enable standardized logging, proactive alerting, and continuous profiling to detect issues early and optimize performance and scalability. Ensure secure configuration with encryption, secrets management, and compliance with enterprise standards for data protection. Design for scalability and cloud/platform readiness (e.g., PCF) with auto-scaling and efficient resource utilization. Strong experience in cryptography and API security, including AES/RSA encryption, TLS/PKI, secure key management (HSM/Azure Key Vault), and authentication mechanisms such as OAuth2, JWT, and mTLS.

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