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Senior Java FSD Developer

Lead Java FSD who can build, and scale API-first platforms and integrate with AI-assisted and/or AI First approach.

  • NYC, New York, United States
  • Posted Nov 4, 2026
INDUSTRYSoftware & InternetSaaS & Enterprise Software

Responsibilities

  • Build and scale API-first platforms
  • Architect cloud-native services on AWS
  • Integrate AI-assisted and LLM solutions
  • Develop end-to-end capabilities across cloud-native stack
  • Design, deploy, and operate scalable event-driven microservices on AWS
  • Partner with product, design, data, architecture, and risk/control stakeholders to deliver secure, stable, and scalable AI solutions

Requirements

Nice to have: Python, micro frontends, CEN/XFS APIs, Datadog, CloudWatch, OpenTelemetry, AI-assisted coding tools, prompt engineering, commercial banking knowledge

Skills

Java 11+/17/21SpringBootRESTJSONOpenAPISNSSQSKafkaintegration patternsAPI versioningcontract testingPactWireMockReactTypeScriptJavaScriptCI/CDJenkinsSpinnakerBlazeMeterSplunkDynatraceDockerKubernetesserverless computeTerraformCloudFormationECSEKSPostgreSQLMySQLAuroraDynamoDBDocumentDBRedisIAMKMSSecrets ManagerWAFCORSCSPinput validationJavaSpringBootRESTJSONOpenAPISNSSQSKafkaPactWireMockReactTypeScriptJavaScriptJenkinsSpinnakerBlazeMeterSplunkDynatraceDockerKubernetesECSEKSTerraformCloudFormationPostgreSQLMySQLAuroraDynamoDBDocumentDBRedisIAMKMSSecrets ManagerWAFCORSCSPDatadogCloudWatchOpenTelemetry

Full description

Summary: Seeking a hands-on Lead Java FSD who can build, and scale API-first platforms and integrate with AI-assisted and/or AI First approach. Required qualifications & Skills: • 12+ years professional software engineering experience; 3+ years architecting cloud-native services on AWS. • Expert in Java 11+/17/21, SpringBoot, REST, JSON, OpenAPI, and asynchronous messaging (SNS/SQS/Kafka). • Strong with integration patterns (sync/async), API versioning, backwards compatibility, schema evolution, and contract testing (Pact/WireMock). • Deliver production-grade solutions by integrating agentic AI, LLMs/SLMs, MCP, RAG, agent orchestration frameworks, and automation to elevate how clients experience our products. • Build end-to-end capabilities across a cloud-native stack— React + TypeScript/JavaScript on the front end and Java/Spring Boot microservices on the back end. • Establish strong engineering practice through CI/CD pipelines (e.g., Jenkins, Spinnaker), automated testing and load testing (e.g., BlazeMeter), and production observability/monitoring (e.g., Splunk, Dynatrace). • Design, deploy, and operate scalable, event-driven microservices on AWS using Docker, Kubernetes, serverless compute, and messaging patterns. • Partner with product, design, data, architecture, and risk/control stakeholders to deliver secure, stable, and scalable AI solutions that solve real business problems • Nice to have: Python experience for LLM engineering and data processing (e.g., building small services, automation, and evaluation harnesses). • Proficient with SQL (PostgreSQL/MySQL/Aurora) and at least one NoSQL (DynamoDB/DocumentDB); caching with Redis. • Proficient in CI/CD, IaC (Terraform/CloudFormation), Docker, and container orchestration (ECS/EKS). • Solid observability (logs, metrics, traces) and performance tuning (JVM, DB, API latency, throughput). • Security-first mindset: IAM, KMS, Secrets Manager, WAF, CORS, CSP, input validation. • Excellent communication, stakeholder management, and mentoring skills. Preferred skills: • Experience with micro frontends, CEN/XFS API's, Terraform • Exposure to Java, Spring Boot, RESTful, Dynamo • Experience with Datadog, CloudWatch, OpenTelemetry • Knowledge of AI-assisted coding tools (e.g., Copilot, Claude, GitHub, etc.) and prompt engineering for LLM's What are the top 3 skills required for this role? • Java, Springboot, Microservices, REST API's, API Integration, Kafka, ReactJS, TypeScript, JavaScript, WebSockets, & Node.js • Agile methodologies such as CI/CD & experience with service workers, Grafana, Splunk, Dynatrace • Commercial Banking knowledge is a plus

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