Full Stack Java Developers (CONTRACT ROLE)

PRINCIPLES ONLY; NO AGENCIES Attadale Partners, LLC is seeking to fill multiple Java Developer roles for early career Java Developers with 1-3 years of experience to join our team in a CONTRACTOR ROLE 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, and integrated communication channels. 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 with a preference for Chicago-area applicants. These roles are 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 CORE JAVA AND PLATFORM SKILLS:Java 17 / 21 LTS (records, sealed classes, pattern matching) - ExpertSpring Boot 3.x (auto-config, actuators, profiles, DI) - ExpertSpring Security, OAuth2 / OIDC - AdvancedREST API & OpenAPI 3.x design - ExpertUnit & Integration Testing - JUnit 5, Mockito - ExpertTest Driven Development (TDD) - RequiredAWS - Lambda, DynamoDB - AdvancedAmazon Connect / Contact Flows (Lambda handlers, Lex bots) - PreferredKafka / Amazon MSK (event-driven microservices) - ProficientCI/CD - trunk-based dev, GitHub Actions or equivalent - AdvancedAgentic AI tooling - LLM APIs, tool-use loops, LangChain4j - Preferred / Will train EXPERIENCE REQUIREMENTS1-3+ years professional Java in production systems2+ years Agile; XP experience strongly preferred1+ year AWS cloud-native (Lambda, ECS)TDD - evidenced examples will be differentiatorsEvent-driven microservices architecture EXPERIENCE DIFFERENTIATORS INCLUDE:Amazon Connect integration built end-to-endAgentic AI or LLM workflow implementationInsurance, Financial Services, or regulated industry backgroundOpen-source contributions (Java ecosystem)Systems scaled to 100k+ concurrent sessions XP ENGINEERING PRACTICESPair programming daily - driver/navigator rotationTDD: Red → Green → Refactor on all production codeTrunk-based devCollective code ownership - no silos or fiefdomsOne-week iterations with Friday demos INTERPERSONAL COMPETENCIESCommunicates technical concepts to non-technical stakeholdersGives and receives code review feedback constructivelyThinks out loud; surfaces blockers earlyCross-functional empathy - understands agent/customer impactMentorship orientation; shares knowledge freely CERTIFICATION AND ASSESSMENTSAWS Certified Developer - Associate (DVA-C02) - PreferredSpring Professional Certification (VMware / Broadcom) - PreferredAWS Certified Solutions Architect - Associate (SAA-C03) - AdvantageousAWS Certified Machine Learning - Specialty (MLS-C01) - Advantageous Interpersonal competencies are as important as the core technology skills. Not a perfect match? If you are a strong Java engineer who is curious about AI, comfortable in XP, and wants to work on systems that matter to millions of customers - we encourage you to apply. Work is remote and preference is given to applicants located in the Chicago area. Benefits Work is remote and preference is given to applicants located in the Chicago area. Not a perfect match? If you are a strong Java engineer who is curious about AI, comfortable in XP, and wants to work on systems that matter to customers - we encourage you to apply. PRINCIPLES ONLY; NO AGENCIES