Note: The job is a remote job and is open to candidates in USA. DeWinter Group is recruiting for a fintech partner seeking a Senior Backend Engineer to build a greenfield, customer-facing data platform. The role focuses on designing APIs, developing scalable microservices, building blockchain data ingestion pipelines, and establishing secure, observable AWS-based systems while collaborating with product and data teams.
Responsibilities
- Architect and implement backend services and APIs using Python / TypeScript / Node.js
- Design and scale data ingestion pipelines for blockchain and crypto datasets
- Build reliable, secure systems on AWS (Lambda, ECS/Fargate, DynamoDB, API Gateway, etc.)
- Collaborate closely with data engineers and product leads to define data schemas, access layers, and platform integrations
- Set technical direction and establish best practices for performance, testing, and observability
- Contribute to early product decisions, feature prioritization, and roadmap shaping
Skills
- 5+ years of experience building backend systems in TypeScript / Node.js / Python
- Strong foundation in AWS services and cloud architecture
- Proven ability to work in fast-paced startup environments — adaptable, proactive, and comfortable with ambiguity
- Experience designing APIs, data pipelines, and event-driven systems
- Knowledge of or strong curiosity about crypto / blockchain technologies
- Bonus: exposure to insurance data, risk analytics, or regulatory systems
Benefits
- Mostly remote with some visits to Boston/RI/NH offices
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