Sr. Full Stack Developer (Java, APIs, React) – GCP Job Description Summary The Enterprise Payments IS Tech Specialist – Full Stack (Java, APIs, React) – GCP serves as a senior technical contributor on the Enterprise Payments technology team, leading the design, development, integration, and operational support of cloud‐native payment solutions hosted on Google Cloud Platform (GCP). This role delivers secure, scalable back‐end services and modern web user interfaces, aligned with enterprise architecture standards, business strategy, and regulatory requirements.
This position plays a key role in delivering complex initiatives, modernizing payment platforms, and driving engineering best practices across cloud‐native and event‐driven architectures.
Job Description We are seeking an experienced IS Tech Specialist with strong full‐stack engineering skills (Java, API development, and React) and deep GCP expertise to support our Enterprise Payments platform. This role focuses on building cloud‐native services and user experiences, system integration, and production support in an agile environment, enabling high‐volume payment origination, processing, disbursement, and settlement capabilities.
The ideal candidate brings strong hands‐on experience with Java (e.g., Spring/Spring Boot), designing and implementing secure APIs (REST; familiarity with API management such as Apigee/API Gateway), and building web applications using React, while collaborating closely with product, business, and enterprise IT partners. Experience with distributed systems and modern DevOps practices on GCP is essential.
Key Responsibilities- Serve as a subject matter expert (SME) for GCP technologies within the Enterprise Payments portfolio
- Provide hands‐on technical leadership for cloud‐native application development and support
- Design, build, and maintain highly available, event‐driven payment systems on GCP
- Develop serverless and container‐based solutions using Cloud Functions, Cloud Run, and GKE
- Develop and maintain back‐end services using Java (e.g., Spring Boot), including performance tuning and resiliency patterns
- Design, build, and version RESTful APIs, including contract-first design, documentation, and integration testing
- Build and enhance web user interfaces using React and modern JavaScript/TypeScript practices
- Implement messaging and event processing using Pub/Sub
- Build and manage data storage using Cloud SQL (PostgreSQL/MySQL), BigQuery, and Firestore
- Design and expose APIs using Apigee or API Gateway with secure authentication and authorization
- Implement identity and access management using GCP IAM, Workload Identity, and Identity Platform
- Configure networking using VPC, subnets, firewall rules, load balancers, and private service access
- Monitor and troubleshoot applications using Cloud Monitoring, Cloud Logging, Error Reporting, and Trace
- Implement security capabilities including Security Command Center, audit logging, and threat detection
- Automate infrastructure using Terraform and GCP Deployment Manager
- Enable CI/CD pipelines using Cloud Build, Artifact Registry, and Git‐based repositories
- Partner with business and technology stakeholders to translate requirements into technical solutions
- Produce technical designs, estimates, and documentation aligned with SDLC standards
- Participate in incidents, problems, and change management processes using ServiceNow
- Support production systems, including participating in on‐call rotation with the team
- Ensure compliance with internal controls, security policies, and regulatory requirements
- Mentor junior engineers and promote engineering best practices
Basic Qualifications- 9+ years of experience in software engineering or IS technical roles
- 3+ years of hands‐on experience developing and supporting cloud‐native applications on GCP
- Strong proficiency in Java (Spring/Spring Boot) and JavaScript/TypeScript (React)
- Experience building and supporting secure RESTful APIs and asynchronous, event‐driven integrations (OAuth2/OIDC or similar authentication approaches preferred)
- Experience with relational databases (PostgreSQL, MySQL) and NoSQL data stores
- Hands‐on experience with:
- Cloud Functions, Cloud Run, or GKE
- Pub/Sub messaging
- Cloud SQL, BigQuery, Firestore
- IAM and security best practices
- Experience with Infrastructure as Code (Terraform preferred)
- Familiarity with CI/CD pipelines and DevOps practices
- Strong troubleshooting, analytical, and communication skills
- Bachelor's degree or equivalent practical experience
Preferred Qualifications- Experience supporting enterprise‐scale payment or financial systems
- Knowledge of payment processing concepts (ACH, checks, debit/credit cards, Zelle, bill pay, etc.)
- Experience with Unix/Linux environments and scripting
- Familiarity with observability tools such as Splunk, Dynatrace, or Datadog
- Exposure to AI‐assisted development or automation tools
- Experience working in regulated or highly controlled environments