Senior Backend Engineer — Scalable SaaS & Data Pipelines

Upstack Data

Philippines

On-site

PHP 3,685,503 - 6,756,756

Full time

14 days+

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Benefits offered by this job

Equipment stipend

Job summary

Upstack Data is seeking a Senior Software Engineer (Backend) in the Philippines to own our backend infrastructure, building serverless APIs, data pipelines, and integrations that power our customer identity resolution platform.

You will design robust, event-driven systems, establish backend patterns and best practices, and influence product/tech decisions while collaborating with the CEO on requirements and architecture across Shopify, Meta, Google Ads, Klaviyo, and more.

Qualifications

3+ years of hands-on experience developing production Node.js applications with TypeScript.
Expert proficiency in serverless architecture patterns using AWS Lambda, API Gateway, and related services.
Strong experience with both SQL (PostgreSQL) and NoSQL (DynamoDB) databases, including data modeling and query optimization.
Solid understanding of event-driven architectures, message queues (SQS, SNS, EventBridge), and asynchronous processing patterns.
Experience building and consuming RESTful APIs, with knowledge of authentication patterns (OAuth, JWT, API keys).
Strong experience integrating with third-party platforms and APIs (payment processors, e-commerce platforms, advertising APIs, marketing tools).
Familiarity with infrastructure-as-code tools (Serverless Framework, AWS CDK, or Terraform).
Experience with Git workflows, CI/CD pipelines, and modern deployment practices.
Knowledge of backend testing frameworks and best practices for code quality.
Understanding of monitoring, logging, and observability practices (CloudWatch, DataDog, or similar).
Excellent communication skills and autonomous problem-solving abilities.
Available for 4-5 hours overlap with US Eastern timezone
Strong English verbal and written communication.

Responsibilities

Design, develop, and maintain scalable backend services and APIs using Node.js, TypeScript, and AWS Lambda.
Make independent architectural decisions on data models, API design, service boundaries, and system reliability that create robust, maintainable systems.
Collaborate with the CEO on product requirements, providing technical perspective on feasibility and proposing alternative approaches that balance user value with engineering effort.
Establish and maintain backend patterns, coding standards, and best practices to ensure consistency and reliability across the platform.
Build and optimize data pipelines for ingesting, processing, and analyzing customer behavior data at scale.
Integrate backend services with third-party platforms including e-commerce systems, advertising APIs, email marketing tools, and payment processors.
Participate in code reviews and contribute to establishing backend engineering standards and best practices.
Optimize application performance focusing on response times, database query efficiency, and cost optimization.
Write comprehensive tests using modern testing frameworks to ensure code quality and reliability.
Monitor and analyze backend performance metrics, addressing issues proactively.
Implement proper error handling, logging, and alerting to maintain system health.
Support deployment, monitoring, and troubleshooting of applications in production environments.
Stay current with AWS serverless ecosystem trends and emerging backend technologies to continuously improve our platform.