Senior Python Backend Engineer - REST API & FastAPI Expert

Ethereum Technologies LLC; Reston (VA); On-site; USD 120,000 - 170,000; Full time

Job summary

ETHEREUM TECHNOLOGIES LLC is seeking a software engineer to design, develop, and maintain web services systems under a Tech Lead. You will estimate, plan, and implement features, collaborating with product managers to gather requirements and deliver robust modules.

The role emphasizes strong Python skills (FastAPI/Flask), SQL (PostgreSQL), and API design with OpenAPI. You will diagnose issues, review code, and adopt new technologies while contributing to cross-functional teams in Reston,

Qualifications

• 6 years of experience designing and developing web services applications.
• Experience with REST APIs, JSON and OpenAPI/Swagger.
• Proficient in Python and frameworks (FastAPI/Flask) with related tooling.
• Strong relational database experience and SQL (PostgreSQL).
• Git proficiency and ability to collaborate on a software team.

Responsibilities

• Estimate, plan, and implement software development work.
• Collaborate with product management to gather requirements for new modules or improvements.
• Maintain and improve codebase using software engineering best practices.
• Troubleshoot issues and provide reasoned recommendations.
• Adopt new technologies and tools as appropriate for the team.
• Participate in peer reviews and apply best practices.
• Meet project objectives and timelines.
• Set engineering vision for existing and future applications.

Skills

Web services development

REST APIs

Python frameworks

SQL (PostgreSQL)

Git & issue tracking

Debugging skills

Communication skills

Cross-functional teamwork

Multi-tasking

Education

BS in Computer Science or related field

Tools

Docker

Kubernetes

OpenAPI/Swagger

SQLAlchemy

PostgreSQL

Pytest

FastAPI

Pydantic

Httpx

Job description

ETHEREUM TECHNOLOGIES LLC is seeking a software engineer to design, develop, and maintain web services systems under a Tech Lead. You will estimate, plan, and implement features, collaborating with product managers to gather requirements and deliver robust modules.

The role emphasizes strong Python skills (FastAPI/Flask), SQL (PostgreSQL), and API design with OpenAPI. You will diagnose issues, review code, and adopt new technologies while contributing to cross-functional teams in Reston,