Consultant | HTML,CSS,Javascript,Jquery,PHP,Drupal | HTML5,CSS3,AngularJS

Ipolarity LLC (Nebraska, USA) Follow 3 hours ago

POC: Sam Chavez
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Job Title: Consultant | HTML,CSS,Javascript,Jquery,PHP,Drupal | HTML5,CSS3,AngularJS Java Backend Developer
Work Location & Reporting Address: St Louis, MO (Onsite-Hybrid. Open to candidates who s willing to relocate to client s location)
Contract duration: 12
MAX VENDOR RATE: $79.8 per hour max
Target Start Date: 23 Jun 2026
Does this position require Visa independent candidates only? Yes
Must Have Skills:
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.
Advanced experience with the following:
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.
Minimum Years of Experience:
3 to 8+ years
Certifications Needed:
Top 3 responsibilities you would expect the Subcon to shoulder and execute:
Interview Process (Is face to face required?)
Virtual and Face-to-Face if needed
Any additional information you would like to share about the project specs/nature of work: