[Remote] Senior Software Engineer, Backend at Flex

United States

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Not SpecifiedCompensation

Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

FinTechIndustries

Requirements

Minimum of 4 years of experience with Java

Responsibilities

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

Skills

Key technologies and capabilities for this role

Backend DevelopmentAPIsScalable ServicesSystem DesignArchitectureImplementationTestingDeploymentMonitoringPartner IntegrationsRisk Management

Questions & Answers

Common questions about this position

What experience is required for the Senior Backend Engineer role?

A minimum of 4 years of experience with Java is required.

What are the different engineering teams hiring for this role?

Flex is hiring Senior Software Engineer, Backend roles across four teams: Consumer, Partner Integrations, Core Platform, and Risk.

Is Java experience necessary for this position?

Yes, a minimum of 4 years of experience with Java is required.

What will I be doing as a Senior Backend Engineer at Flex?

You will design, develop, test, and scale backend services and APIs, build fault-tolerant distributed systems, and own the end-to-end lifecycle of services while mentoring junior engineers.

How does the application process work for Senior Backend Engineer positions?

When you apply, you will automatically be considered for all open Senior Backend positions across the four teams, with placement determined based on your experience and expertise assessed during interviews.

Flex

Comprehensive contract manufacturer for electronics

About Flex

Flex provides comprehensive electronics manufacturing services, originally starting with circuit board production for tech companies in Silicon Valley. The company automates its manufacturing processes to ensure reliability and cost-effectiveness, which has made it a trusted partner for various industries, including automotive, healthcare, and consumer electronics. Flex's services encompass design, engineering, manufacturing, and supply chain management, allowing businesses to outsource their production needs and focus on their core activities. A key differentiator for Flex is its subsidiary, Anord Mardix, which specializes in critical power solutions and custom products for clients with complex requirements. Additionally, Flex is dedicated to sustainability, aiming for a significant portion of its customers to adopt science-based emissions targets by 2025, reflecting its commitment to environmental responsibility.

Singapore, SingaporeHeadquarters

1969Year Founded

$200MTotal Funding

IPOCompany Stage

Industrial & Manufacturing, EnergyIndustries

10,001+Employees

Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Company Match

Company Equity

Unlimited Paid Time Off

Paid Holidays

Parental Leave

Profit Sharing

Risks

Integrating JetCool Technologies may lead to operational and cultural alignment challenges.

Partnership with Musashi Energy exposes Flex to risks of emerging technology failures.

Jamdeo joint venture faces competitive pressures in the smart TV and media streaming market.

Differentiation

Flex offers end-to-end manufacturing solutions, from design to supply chain services.

Anord Mardix, a Flex subsidiary, specializes in critical power solutions and custom offerings.

Flex's commitment to sustainability aligns with global efforts to combat climate change.

Upsides

Flex's acquisition of JetCool enhances its data center cooling solutions for AI servers.

Partnership with Musashi Energy boosts Flex's AI data center energy storage capabilities.

Flex's Zhuhai facility's AME Excellence Award highlights its world-class manufacturing standards.

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