Sr. Software Engineer - Backend (NodeJS and Typescript)

Remote

Location: Philippines (Remote)

Schedule: Full-Time | US Eastern Timezone overlap

About Upstack Data

Upstack Data is a Miami-based SaaS building marketing automation for Shopify merchants. Our flagship product, Signal, replaces broken browser-based pixels with reliable first-party server-side events to Meta, TikTok, and other ad platforms. We're a lean, AI-first team running offshore-first - most of our engineering, GTM, and operations roles are filled with PH talent.

About This Role

We are seeking a talented and product-minded Senior Software Engineer (Backend) to join Upstack Data. In this role, you will own our backend infrastructure — building and maintaining the serverless APIs, data pipelines, and integrations that power our customer identity resolution platform. You will work directly with our CEO to translate business requirements into reliable, scalable backend systems, making independent architectural decisions throughout the product development lifecycle from initial concept to deployment and optimization.

A distinguishing aspect of this role is your ability to design robust, event-driven systems without extensive hand-holding. You will influence product and technology decisions, establish backend patterns and best practices, and build systems for complex features including data ingestion pipelines, third-party integrations (Shopify, Meta, Google Ads, Klaviyo), webhook processing, and high-throughput analytics queries. This is an excellent opportunity for someone passionate about building performant B2B SaaS infrastructure with a strong understanding of what makes platforms like Segment, Stripe, and Mixpanel reliable and scalable.

Name *

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How many years have you built production applications with Node.js and TypeScript? *

How many years have you built event-driven systems using AWS messaging services such as SQS, SNS, or EventBridge? *

How many years have you worked with AWS serverless — Lambda, API Gateway, and related services? *

How many years have you integrated backend services with third-party APIs (e-commerce, advertising, or marketing platforms such as Shopify, Meta, Google Ads, Klaviyo)? *

How many years of experience in production grade OOP? *

How many years of experience at a SaaS company? *

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This is a full-time role requiring at least 4–5 hours of daily overlap with US Eastern Time. Can you commit to this schedule? *

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