Senior Full Stack Java Developer

Position: Senior Full Stack Java Developer Location: St. Louis, MO*** 3 Days Onsite*** Duration: 1 Year Job Summary The Senior Technical Architect will be responsible for providing technical leadership, architectural guidance, and strategic direction for projects involving spring boot, DevOps Solutions, and full stack Java development. The role involves designing, developing, and implementing complex technical solutions to meet business objectives efficiently.

Key Responsibilities

• Designing and architecting scalable and secure solutions using spring boot framework
• Implementing devops practices and solutions to automate and streamline development processes
• Leading full stack java development projects from inception to completion
• Collaborating with cross functional teams to ensure seamless integration of systems and applications
• Providing technical guidance and mentoring to junior team members
• Conducting code reviews, performance tuning, and troubleshooting technical issues
• Keeping abreast of industry trends and best practices in spring boot, devops, and full stack java development

Skill Requirements

• Proficiency in spring boot framework for developing enterprise applications
• Strong expertise in devops tools and practices for continuous integration and deployment
• In-depth knowledge of full stack java development, including frontend, backend, and database technologies
• Excellent problem-solving and analytical skills
• Strong communication and interpersonal abilities to effectively work with diverse teams and stakeholders
• Ability to lead and drive technical discussions and decisions
• Proven experience in designing and implementing complex technical solutions

Other Requirements

• Relevant certifications in springboot, DevOps, or full stack Java development are a plus

We are seeking an experienced Technical Lead to lead the design, development, deployment, and support of Mastercard's Decision Management Platform (DMP) and FlexTP transaction processing ecosystem.

The ideal candidate will provide technical leadership across high-volume, real-time transaction processing systems, driving architecture decisions, engineering excellence, operational stability, and delivery execution across globally distributed teams.

This role requires strong expertise in enterprise Java applications, distributed systems, CI/CD, cloud-native deployments, database technologies, production support, and agile delivery practices.

Experience with payment authorization, fraud detection, transaction routing, or mission-critical financial platforms is highly desirable.

Preferred Experience Payments, Financial Services, Fraud Detection, or Card Processing domain experience.

Experience with large-scale transaction processing environments handling millions of transactions.

Knowledge of AI/ML-based fraud detection systems and decisioning platforms.

Experience leading globally distributed engineering teams. Leadership Expectations

Lead a team of 6-7 engineers and provide technical direction.

Champion best practices in software engineering, testing, security Vulnerability fix and DevOps.

Conduct architecture reviews, design reviews, and code reviews.

Identify risks and drive mitigation strategies.

Foster a culture of innovation, collaboration, and continuous improvement.

Build strong partnerships with product, business, operations, and platform teams.

Drive technical decision-making for large-scale enterprise initiatives. ________________________________________

Key Responsibilities Lead the architecture, design, and development of scalable solutions within DMP and FlexTP platforms.

Provide technical leadership and mentorship to software engineers and quality engineers.

Drive modernization initiatives involving microservices, APIs, cloud-native applications, and distributed systems.

Own end-to-end delivery from requirements analysis through development, testing, deployment, and production support.

Review application architecture, design patterns, and code quality to ensure adherence to engineering standards.

Manage application deployments across DEV, STAGE, ITF, PEAT, MTF, and Production environments.

Lead troubleshooting efforts for critical production incidents and performance issues.

Drive observability, monitoring, and operational excellence using enterprise monitoring platforms.

Guide release planning, deployment automation, environment management, and configuration governance. ________________________________________

Required Technical Skills & Tools Knowledge Programming & Development Java (In depth knowledge JDK8 onwards) programming language

Production Issue fix experience

Security Vulnerability fix experience ( Checkmark, Blackduck, Infra Vulnerability fix knowledge)

Batch Job, Shell script , unix command Application Production Support

Oracle Database and SQL programming language

REST APIs

gRPC Services

Microservices Architecture

Middleware - Kafka

Knowledge of Certificate ( . JKS, .P12, Encryption, Public Key, Private Key) , MTLS, TLS1.3 DevOps & CI/CD Tools

Jenkins Jobs

PCF (Pivotal Cloud Foundry)

XLR (Release Automation) good to have

Maven

Git , Bitbucket/Stash

JFrog Artifactory

Docker

SonarQube

Cloud & Infrastructure

HashiCorp Vault

CyberArk

Chef Habitat Monitoring & Observability

Splunk