Senior Data Platform Engineer, Enterprise Merchant Integrations
Posted 4hrs ago
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Job Description
Senior Data Platform Engineer building reliable AWS merchant integrations for Extend’s AI-driven post-purchase retail platform. Developing event-driven data systems, onboarding tooling, and error reporting.
Responsibilities:
- Design mapping and transformation systems that isolate each merchant’s uniqueness and maintain consistent downstream data
- Build tooling and standards to accelerate and secure enterprise merchant onboarding
- Support merchant migrations onto current platform capabilities
- Handle complex merchant integrations
- Build merchant-facing error reporting from validation and processing errors
- Engineer validation, reconciliation, automated failure triage, and trusted alerting
- Expand the event-driven architecture using Kafka, EventBridge, SNS, Step Functions, and SQS
- Add lifecycle webhooks for service and order events
- Own work from design through production, including monitoring, observability, data-quality checks, and reconciliation
- Mentor others and help shape integration standards
Requirements:
- 4-6 years in Data Engineering, Platform Engineering, or a closely related field
- Deep AWS serverless experience: Lambda, DynamoDB, Glue, and Step Functions
- Hands-on experience with event-driven systems: Kafka, EventBridge, and SNS
- Fluency in Python and TypeScript
- Experience building and hardening large-scale data platforms and integrations
- Experience building platforms and tooling that other engineers build on
- Experience delivering clean data into a warehouse such as Snowflake or a data lake
- Experience building reconciliation against data warehouses or data lakes
- Ownership mentality and ability to drive work to completion without step-by-step guidance
- Mentorship experience with a humble, collaborative approach
- Bonus: experience designing clear, actionable error surfaces or reporting for external or non-technical consumers
- Must not require immigration-related sponsorship
Benefits:
- Competitive salary based on experience
- Full medical benefits
- Dental and vision benefits
- Stock in an early-stage startup growing quickly
- Generous, flexible paid time off policy
- 401(k) with Financial Guidance from Morgan Stanley
- Collaborative and supportive environment

















