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Senior Software Engineer, Backend

Backend EngineerSoftware EngineerFull TimeRemoteTeam 201-500Since 2019H1B SponsorCompany Site LinkedIn

Location

California + 2 more

Posted

44 days ago

Salary

$177K - $213K / year

5 yrs expEnglishAWSDistributed SystemsDynamo DBGradleJavaJunitSpring

Job Description

• Design, develop, test, and scale backend services and APIs that power Flex’s consumer products • 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 • 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 • Mentor junior engineers and help elevate the team’s engineering practices through code reviews and architecture discussions

Job Requirements

5–6+ years of professional software engineering experience
4+ years of hands-on Java experience
Proficient in Java frameworks and tools used at Flex: Spring (core/web/boot), Gradle, JUnit
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
Hands-on experience with AWS (EKS, Aurora RDS, Elasticache, DynamoDB)
Skilled in observability and monitoring tools (e.g., DataDog)
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

Benefits

Competitive medical, dental, and vision available from Day 1
Company equity
401(k) plan with company match (our company match kicks off at the beginning of 2026)
Unlimited paid time off + 13 company paid holidays
Parental leave
Flex Cares Program
Free Flex subscription