Job Url: https://www.remoterocketship.com/company/flex/jobs/senior-software-engineer-backend-united-states-remote Job Description: Flex Website LinkedIn All Job Openings We’re the manufacturing partner of choice that helps a diverse customer base design and build products that improve the world.We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed. design • manufacturing • logistics • value-add services • electronics 60120 - 60120 employees Senior Software Engineer, Backend 2 days ago 🇺🇸 United States – Remote 💵 $177k - $213k / year ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🦅 H1B Visa Sponsor AWS Distributed Systems Docker DynamoDB Gradle Java JUnit Kubernetes SDLC Spring Terraform Apply Now Receive Emails with Similar Jobs Report problem 📋 Description • Design, develop, test, and scale backend services and APIs that power Flex’s consumer products, partner integrations, risk management systems, and core platform services. • Build and operate robust, fault-tolerant distributed systems with multiple external dependencies. • Implement service APIs for web and mobile apps, simplifying complex rent payment processing. • Work closely with Product, Design, Infrastructure, Sales, Partner, and Customer Success to deliver features and integrations that delight customers and partners. • Translate feature requirements into technical specifications and lead the architecture and implementation of scalable solutions. • Drive the full lifecycle of services and APIs you build, including deployment, monitoring, and optimization for high availability and performance. • Contribute to evolving Flex’s service-oriented architecture, REST APIs, message queues, and scalable systems design. • Develop risk management systems such as rules engines, ML-powered fraud detection, and high-scale event ingestion pipelines. • Mentor junior engineers and help elevate the team’s engineering practices through code reviews, architecture discussions, and technical leadership. • Ensure services are observable and reliable using monitoring tools and industry best practices. • Collaborate on CI/CD improvements and automation to increase code quality and delivery velocity. 🎯 Requirements • Strong computer science fundamentals with a proven track record of building scalable backend systems. • 5–6+ years of professional software engineering experience with a focus on backend development. • 4+ years of hands-on Java experience, with deep knowledge of the Java ecosystem. • Proficient in Java frameworks and tools used at Flex: Spring (core/web/boot), Gradle, JUnit, JVM tuning and performance optimization. • Experience operating services in distributed, service-oriented architectures at scale. • Familiarity with REST API design, mobile API best practices, and message-driven architectures. • Skilled at building robust, fault-tolerant systems and integrating with multiple external dependencies. • Experience designing and maintaining data pipelines and working with big data platforms (bonus: Snowflake). • Hands-on experience with AWS (EKS, Aurora RDS, Elasticache, DynamoDB), containerization (Docker/Kubernetes), and Infrastructure as Code (CDK/Terraform). • Skilled in observability and monitoring tools (e.g., DataDog) to ensure high availability. • Ability to write high-quality code that is testable, maintainable, scalable, and secure, using industry best practices throughout the SDLC (unit testing, build automation, CI/CD). • Excellent communicator, comfortable working with distributed teams and cross-functional stakeholders. • Proven ability to mentor junior engineers and raise the technical bar through best practices. • Risk Platform candidates: Experience in risk engineering, rules engine architecture, and implementing risk/fraud/credit policies in production systems is highly valued. 🏖️ Benefits • Competitive pay • 100% company-paid medical, dental, and vision • 401(k) + company equity • Unlimited paid time off + 13 company paid holidays • Parental leave • Flex Cares Program: Non-profit company match + pet adoption coverage • Free Flex subscription Apply Now