Full Stack Senior Java Developer

Attadale Partners, LLC

11d•Remote

About The Position

Attadale Partners, LLC is seeking to fill multiple Java Developer roles for experienced Senior Developers with 4-6 years of experience to join our team serving successful organizations and government agencies. As a management consulting firm, we are always looking for talented individuals to help improve our clients' business through technology. We have an opportunity to lead enterprise transformation roles including Agentic AI processes, cloud telephony, . In this role, you will be embedded in cross-functional teams with business leaders, senior engineers, and ML engineers to transform legacy business communications, data collection and analysis reporting. In addition, you will support the existing systems to ensure performance during the transition period. This role can be remote and all applicants must be US based, and is open to applicants already with the authority to work in the US. Unfortunately for these roles, we cannot sponsor new or transfer existing H-1B work visas. We are serve large commercial clients in the financial services and health care, assisting them to transform and modernize their business operations across three pillars: agentic AI workflows, Amazon Connect telephony automation, and expanded self-service for agents and customers. We practice Extreme Programming (XP) — pair programming, TDD, and continuous integration are how we work every day. This is a day-one contributor role; minimum ramp-up time is expected.

Requirements

4-6 years of experience as a Java Developer.
5+ years professional Java in production systems.
2+ years Agile; XP experience strongly preferred.
1+ year AWS cloud-native (Lambda, ECS, SQS, Aurora).
Demonstrable TDD — evidenced in GitHub, not self-attested.
Experience with event-driven microservices architecture.
Java 17 / 21 LTS (records, sealed classes, pattern matching) - Expert.
Spring Boot 3.x (auto-config, actuators, profiles, DI) - Expert.
Spring Security, OAuth2 / OIDC - Advanced.
Spring Data JPA / Hibernate (query tuning, N+1 awareness) - Advanced.
REST API & OpenAPI 3.x design - Expert.
Unit & Integration Testing — JUnit 5, Mockito, TestContainers - Expert (TDD required).
AWS — ECS/EKS, Lambda, SQS/SNS, RDS Aurora, DynamoDB - Advanced.
Kafka / Amazon MSK (event-driven microservices) - Proficient.
CI/CD — trunk-based dev, GitHub Actions or equivalent - Advanced.
US based applicants only.
Authority to work in the US.
Oracle Certified Professional: Java SE 17 or 21 Developer (OCP) - Required.

Nice To Haves

Amazon Connect / Contact Flows (Lambda handlers, Lex bots).
Agentic AI tooling — LLM APIs, tool-use loops, LangChain4j.
Amazon Connect integration built end-to-end.
Agentic AI or LLM workflow implementation.
Insurance, FinServ, or regulated industry background.
Open-source contributions (Java ecosystem).
Systems scaled to 100k+ concurrent sessions.
Pair programming daily — driver/navigator rotation.
TDD: Red → Green → Refactor on all production code.
Trunk-based dev; short-lived branches (hours, not days).
Collective code ownership — no silos or fiefdoms.
One-week iterations with Friday demos.
AWS Certified Developer — Associate (DVA-C02).
Spring Professional Certification (VMware / Broadcom).
AWS Certified Solutions Architect — Associate (SAA-C03).
AWS Certified Machine Learning — Specialty (MLS-C01).
Strong Java engineer who is curious about AI, comfortable in XP, and wants to work on systems that matter to millions of policyholders.

Responsibilities

Embedded in cross-functional teams with business leaders, senior engineers, and ML engineers to transform legacy business communications, data collection and analysis reporting.
Support existing systems to ensure performance during the transition period.
Transform and modernize business operations across three pillars: agentic AI workflows, Amazon Connect telephony automation, and expanded self-service for agents and customers.
Practice Extreme Programming (XP) — pair programming, TDD, and continuous integration.
Communicate technical concepts to non-technical stakeholders.
Give and receive code review feedback constructively.
Think out loud; surface blockers early.
Demonstrate cross-functional empathy — understands agent/customer impact.
Mentorship orientation; shares knowledge freely.