Senior Backend & Frontend Engineer jobs in United States
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The Flex · 1 month ago

Senior Backend & Frontend Engineer

positionUnited States
timeFull-time
remoteRemote
senioritySenior Level

The Flex is an automation platform designed to connect data and orchestrate workflows at a global scale. They are seeking a Senior Backend & Frontend Engineer to architect and scale the core systems behind Base360.ai, focusing on building high-performance software and real-time automation.

Property ManagementReal EstateRental Property
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H1B Sponsor Likelynote

Responsibilities

Architect Core Services
Design and build APIs, data pipelines, and backend services that form the foundation of Base360.ai
Build Automation at Scale
Develop microservices and event-driven workflows that orchestrate real-world processes across industries and platforms
Own The Frontend Experience
Create fast, clean, and intuitive interfaces that allow teams to control automations, monitor systems, and gain insights in real time
Engineer for Reliability
Design systems that are fault-tolerant, observable, and able to withstand high-throughput, multi-region workloads
Integrate the Ecosystem
Connect Base360.ai to services like Stripe, Twilio, Airbnb, Hostaway, and other mission-critical APIs to create a unified automation layer
Lead With Impact
Drive technical decisions, mentor other engineers, and help define engineering standards and long-term architecture

Qualification

Node.jsReactAWSDistributed systemsPythonMicroservicesAPIsAutomationLeadershipProblem-solving

Required

Strong experience with Node.js / TypeScript, Python (FastAPI), or equivalent backend frameworks
Solid expertise in React or another modern frontend framework
Deep familiarity with AWS, especially serverless (Lambda, DynamoDB, EventBridge, SQS)
Strong understanding of distributed systems, microservices, and event-driven architecture
Experience building scalable, production-grade APIs and real-time systems
A passion for automation, intelligent workflows, and simplifying complex processes
A builder's mindset — autonomous, fast, pragmatic, and product-oriented
The ability to lead initiatives and deliver high-quality software end-to-end

Benefits

Competitive compensation with meaningful upside for exceptional talent.
Remote-First
Work from anywhere. We optimize for output, not hours.

Company

The Flex

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The Flex is a property management company that offers rental houses and furnished apartments for students, travellers, and local families.
dateFounded in 2019
location
London, England, GBR
people-size51-200 employees
web-link
https://theflex.global

H1B Sponsorship

The Flex has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)

Funding

Current Stage
Growth Stage

Leadership Team

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Michael Buggy
COO
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Company data provided by crunchbase