Stripe

React Native

Event Sourcing

Infrastructure

Angular

Ember.js

JavaScript

TypeScript

AWS Cloud Infrastructure

Ibm cloud

Alibaba Cloud

MySQL

MariaDB

Plpgsql

PostgreSQL

### Role Overview

We are seeking a dedicated **Staff Backend Engineer** specializing in AWS and serverless technologies to collaborate directly with our CTO. You will own the design and implementation of our core backend platform, focusing on building compliance-grade, event-driven systems. These systems will power receipt ingestion, audit logging, social activity feeds, and tax reporting workflows. Your role will be pivotal in guiding backend technical direction, making build-vs-buy decisions, and delivering scalable serverless systems on AWS, with occasional support to our React Native frontend.

#### Responsibilities

*   Architect and build production-grade serverless backend systems on AWS using technologies like Lambda, API Gateway, RDS, S3, and CDK.
*   Design and implement OCR and document processing pipelines for receipt scanning using AWS Textract and/or Google Vision AI.
*   Develop inbound email parsing systems to extract structured donation data from forwarded confirmations.
*   Implement immutable audit logging and long-term data retention strategies to ensure IRS compliance.
*   Design event-driven workflows using AWS services such as SQS, Step Functions, and SNS.
*   Architect social activity feeds with privacy controls and engagement tracking.
*   Build programmatic PDF generation for tax reports and exports.
*   Integrate third-party APIs for charity and EIN verification.
*   Provide support to React Native frontend development as needed.
*   Establish clean architecture, data models, and API contracts across the backend platform.

#### Required Skills

*   Over 7 years of backend engineering experience with a strong track record of architecture ownership.
*   Expertise in TypeScript and Node.js within production environments.
*   Extensive experience designing AWS serverless architectures, including Lambda, API Gateway, SQS, Step Functions, S3, and RDS.
*   Proficient in using PostgreSQL and ORMs like Prisma.
*   Proven experience in building OCR and document processing pipelines.
*   Skilled in implementing event-driven systems, audit logging, and compliance-grade data workflows.
*   Experience in parsing and processing inbound emails for structured data extraction.
*   Strong understanding of clean architecture, data modeling, and API design.
*   Familiarity with regulated or compliance-sensitive environments.

#### Nice to Have

*   Experience with event sourcing or change data capture (CDC).
*   Experience integrating financial APIs such as Stripe or Plaid.
*   Familiarity with IRS forms, tax workflows, or charitable donation systems.
*   Experience in building social feeds or activity streams.
*   Prior experience supporting React Native applications.
*   Experience with CI/CD pipelines and infrastructure automation.

Sole

PCI Compliance

Staff Backend Engineer (AWS / Serverless) - FT Freelance - Worldwide