{"id":105755,"url":"https://alion.io/job/coderio-sr-java-backend-miami-lakes","title":"Sr Java Backend (Miami Lakes)","company":{"id":16386,"name":"Coderio","domain":"coderio.com","url":"https://alion.io/company/coderio","size_band":"201-500","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":83,"open_postings":3,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":33,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Miami, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":117000,"max_usd":214000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3287},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"Amazon ECS","optional":false},{"name":"Amazon EKS","optional":false},{"name":"Amazon Kinesis","optional":false},{"name":"API Gateway","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"Copilot","optional":false},{"name":"Datadog","optional":false},{"name":"DynamoDB","optional":false},{"name":"Function Calling","optional":false},{"name":"IAM","optional":false},{"name":"Java","optional":false},{"name":"JUnit","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Mockito","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"New Relic","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Cloud","optional":false},{"name":"Structured Outputs","optional":false},{"name":"Tool Use","optional":false},{"name":"AWS Step Functions","optional":true},{"name":"CloudFormation","optional":true},{"name":"Docker","optional":true},{"name":"Kotlin","optional":true},{"name":"Kubernetes","optional":true},{"name":"Prompt Engineering","optional":true},{"name":"RAG","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-08-04T14:12:26Z","employer_posted_date":"2026-08-04","last_verified_at":"2026-10-16T23:59:49Z","board_verified":true,"closed_at":null,"days_open":73,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":73},"description":"About Us\nCoderio designs and delivers scalable digital solutions for global companies. We combine strong technical expertise with a product mindset to lead complex software initiatives end-to-end. We work with international clients, value autonomy and clear communication, and build long-term partnerships through technical excellence.\nMore information: http://coderio.com\nThis is a high-impact technical role. We are looking for a Senior Java Microservices Developer for a contract engagement. You will own the design, development, and delivery of a suite of event-driven microservices running on AWS. Operating strictly in the Miami / Fort Lauderdale area, you will be a key player in an established engineering team, bringing deep technical expertise in distributed systems and leveraging modern AI tools and agentic workflows to build production-grade services.\nThis is a hands-on execution role. You are responsible for the technical health of the codebase, the performance of the architecture, and delivering high-quality software that scales.\nWhat To Expect In This Role (Responsibilities)\nBackend Architecture & Execution: Design, build, test, and deploy Spring Boot microservices following strict team standards. You will own your code from design to production.\n\nDistributed Systems & Event-Driven Flows: Implement publish/subscribe async messaging and handle distributed transactions using saga or orchestration patterns.\n\nAPI Design & Integration: Design and consume REST APIs, webhooks, and subscription APIs, while actively contributing to API contracts and versioning.\n\nCloud-Native Engineering: Build and maintain CI/CD pipelines and infrastructure-as-code for your services, operating heavily on AWS.\n\nOperational Excellence: Diagnose and resolve issues across distributed services utilizing observability tools like New Relic, Datadog, or OpenTelemetry for logging, tracing, and metrics.\n\nAdvanced AI & Agentic Workflows: Integrate LLMs into services (function/tool calling, structured outputs, and the Model Context Protocol) and build agentic workflows, ensuring AI safety and governance (guardrails, PII/PCI handling) in a regulated setting.\n\nRequirements\nTechnical Foundation: Senior level with 8+ years of experience building backend services in Java, and at least 2+ years specifically in microservices and event-driven systems.\n\nStack Expertise: Deep, hands-on mastery of Java (17+ preferred) with strong OOP and concurrency fundamentals, alongside production experience in Spring Boot and Spring Cloud.\n\nCloud Architecture: Solid, demonstrable production experience with AWS services including DynamoDB, Kinesis, SQS, SNS, KMS, API Gateway, ECS/EKS, Lambda, IAM, and RDS.\n\nAI Proficiency: Fluency with AI-assisted development (like Claude Code or Copilot) with the critical judgment to review AI-generated code.\n\nTesting Discipline: Solid testing discipline utilizing JUnit, Mockito, and integration testing.\n\nLocation & Engagement: Must be located in the Miami / Fort Lauderdale area and available to work 100% on-site for a contract engagement.\n\nNice to Have\nFinancial services or payments domain experience, specifically with payments messaging standards like ISO 20022 and the legacy FAIM (Fedwire) format.\n\nExperience with containers and orchestration (Docker, Kubernetes).\n\nHands-on experience with Infrastructure as Code (Terraform, CloudFormation, or CDK).\n\nExperience with workflow and orchestration engines such as Temporal, Camunda, or AWS Step Functions.\n\nAdvanced AI skills: vector stores/RAG, prompt engineering, and AI observability.\n\nBenefits\nHybrid collaboration in a dynamic and fast-paced environment in the Miami / Fort Lauderdale area.\n\nLong-term contract engagement with high impact and autonomy.\n\nStrategic and high-visibility role within a modern engineering culture.\n\nOpportunity to influence technical strategy, especially regarding modern event-driven architectures and AI integrations.\n\nCollaborative international team with strong technical leadership.\n\nWhy Join Coderio?\nAt Coderio, we value talent and excellence. While we are primarily a remote-first company, this specific strategic role offers the opportunity to work directly on-site to drive high-stakes initiatives. We are passionate about technology, collaboration, and fair compensation. We offer an inclusive and challenging environment with real growth opportunities. If you are motivated to design solutions that make a difference, we are waiting for you. 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