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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Software Developer (Modern Architectures & Distributed Systems) - **Company:** Fiserv, Inc. - **Location:** United States - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Architectural Patterns, Automation of Tests, Microsoft Azure, Continuous Delivery, Command-Query Responsibility Segregation (Software Development), Distributed Data Store, Distributed Systems, Key Management, PostgreSQL, MySQL, NoSQL, OAuth, OpenID, Systems Development Life Cycle, Query Optimization, RabbitMQ, Redis, Software Tools, Prometheus, Message Oriented Middleware, Secure Coding, Data Streaming, Datadog, Data Logging, Google Cloud, Cloud Platform System, Istio, Grafana, Spring-boot, Backend, Rate Limiting, Event Driven Architecture, Containerization, Kubernetes, Information Technology, Hashicorp, Apache Kafka, Reactive Programming, Event Sourcing, Restful APIs, Amazon Simple Queue Service (SQS), Terraform, Dynatrace, Docker, Microservices - **Published:** October 2, 2026 - **Apply:** https://www.dice.com/job-detail/c155df48-2ff6-4eec-8ae7-de844354b8c2 ## About the Role * Education: Bachelor's degree in Computer Science, Engineering, or equivalent practical experience. * Seniority: 7+ years of professional experience building, scaling, and maintaining complex backend production systems within an agile product environment. * Core Java & Spring Ecosystem: Mastery of modern Java (Java 17/21+) and deep expertise with Spring Boot for building enterprise-grade microservices and gRPC/REST APIs. * Advanced Architectural Patterns: Demonstrated experience modernizing backend platforms beyond basic domain services into asynchronous, event-driven, and loosely coupled distributed architectures. * Containerization & Orchestration: Direct hands-on experience containerizing workloads with Docker and running microservices in production Kubernetes environments. * Distributed Data Systems: Deep understanding of relational (PostgreSQL/MySQL) and NoSQL/caching stores (Redis), including schema design, query optimization, and distributed data consistency trade-offs. * Security & Compliance: Practical knowledge of secure coding practices, OAuth2/OIDC, mTLS, and secrets management tools (e.g., HashiCorp Vault). * Engineering Rigor & Velocity: Proven track record with modern CI/CD pipelines, automated testing (unit, integration, mock frameworks), and AI-assisted engineering tools. Experience that would be great to have: * Hands-on experience with streaming/event platforms (Apache Kafka) and implementing event-sourcing or transactional outbox patterns. * Experience with advanced Kubernetes ecosystem tools (Helm, ArgoCD, Kustomize, Istio/Service Mesh). * Exposure to cloud-native infrastructure (AWS, Google Cloud Platform, or Azure) using Infrastructure-as-Code (Terraform). * Deep experience establishing full-stack observability stacks (OpenTelemetry, Prometheus, Grafana, Datadog). * Proven success mentoring mid-level engineers and guiding teams through architectural modernizations., * You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role. ## Description We are looking for a Senior Java Software Developer to help elevate our backend engineering and take our distributed platform to the next level. While our teams already operate with established domain services, we need a forward-thinking technical lead to drive the next evolution of our architecture-transitioning toward event-driven, highly resilient, and modern microservice paradigms. You will design, build, monitor, and maintain high-throughput backend systems within a scalable Docker/Kubernetes environment. As a Senior Developer, you will set the technical bar, champion modern software craftsmanship, and partner with cross-functional teams to deliver secure, observable, and production-grade software at scale. What you'll do: * Architect, build, and maintain next-generation, event-driven microservices and high-performance APIs (REST/gRPC) that evolve our platform beyond traditional domain service boundaries. * Drive modern architectural patterns (e.g., Event-Driven Architecture, CQRS, Saga/Outbox patterns, and Reactive Programming) to maximize system responsiveness, decoupling, and scalability. * Establish operational excellence and observability standards across services, incorporating OpenTelemetry, distributed tracing, structured logging, and proactive alerting. * Implement resilient integration patterns (circuit breakers, rate limiting, retries) and asynchronous messaging workflows using Kafka or SQS/RabbitMQ. * Design and execute automated unit, integration, and contract tests to ensure zero-downtime, continuous deployment capabilities. * Own containerized application lifecycles, collaborating with platform engineering on Kubernetes deployments, Helm/Kustomize manifests, and GitOps workflows. * Elevate developer velocity across the engineering organization by establishing modern SDLC practices, leveraging AI-assisted coding tools, and refining CI/CD pipelines. * Mentor engineers, lead rigorous architecture and design reviews, and foster a culture of shared technical ownership and continuous learning. * Actively participate in Scrum Agile ceremonies, serving as a key technical voice in project estimation, technical scoping, and platform strategy discussions. * Responsibilities listed are not intended to be all-inclusive and may be modified as necessary., * This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity. * This role requires use of a computer and audio equipment. ## Related Videos - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Rate-limiting using eBPF and Istio: How to protect your SaaS customers from themselves](https://www.wearedevelopers.com/videos/100220-rate-limiting-using-ebpf-and-istio-how-to-protect-your-saas-customers-from-themselves) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Get started with securing your cloud-native Java microservices applications](https://www.wearedevelopers.com/videos/123-get-started-with-securing-your-cloud-native-java-microservices-applications) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)