Lead Engineer II Backend (Python)
Job Location:
Wilmington, DE - USA
Monthly Salary:
Posted on:
Vacancies:
Job Summary
Best Egg now part of Barclays is a market-leading tech-enabled financial platform helping people build financial confidence through innovative lending solutions and financial health tools. As a Barclays company we combine the agility and customer focus of a fintech with the global reach stability and purpose of a leading financial institutionworking together to create a better financial future for our customers and communities.
At Best Egg youll find a culture grounded in our core valuesputting people first creating clarity delivering with excellence enhanced by Barclays commitment to integrity inclusion and long-term impact. Together we empower our colleagues to challenge innovate and take ownership while making a meaningful difference in peoples financial lives.
With the strength of Barclays behind us we offer expanded opportunities for growth development and career mobility across a global organizationwhile continuing to build the products and experiences that make Best Egg unique.
Were looking for collaborative curious problem-solvers who are excited to make an impact and grow with us.
Were proud to be an equal opportunity employer committed to building a diverse and inclusive team.
What You Will Do
Technical Leadership & Delivery
- Design develop and deliver high-quality backend Python services iteratively and incrementally.
- Take ownership of key services and APIsfrom hands-on coding through CI/CD deployment to AWS monitoring and on-call support.
- Contribute to backend observability using tools like Datadog for logging metrics distributed tracing and alerting.
- Participate in technical design discussions and contribute architectural insights working with senior leaders to shape solutions.
- Ensure software follows modern engineering practices including clean code testing automation and modern backend architecture patterns.
- Support continuous improvement in code quality reliability performance and developer experience.
- Translate business requirements into clear technical tasks and help validate assumptions and approaches.
Qualifications & Experience
Technical Expertise
- 37 years of professional backend software engineering experience.
- Proficiency in Python at scale including modern Python (3.13) type hints async/await packaging and a strong grasp of the standard library and the broader ecosystem.
- Expertise with at least one major Python web framework (FastAPI preferred; Django or Flask also strong) and the patterns that make Python services reliable in production.
- Strong hands-on experience with AWS including building and operating production workloads on Lambda (serverless functions event-driven architectures) and EKS (containerized services on Kubernetes).
- Working knowledge of supporting AWS services such as API Gateway SQS/SNS S3 IAM CloudWatch and Secrets Manager.
- Experience designing and building RESTful APIs
- Working knowledge of PostgreSQL
- Experience with Redis for caching rate limiting
- Experience with containerization (Docker) and Kubernetes fundamentals (deployments services scaling troubleshooting).
- Experience with CI/CD pipelines and modern release tooling; familiarity with GitHub Actions and Octopus Deploy is a plus.
- Experience with unit integration and contract testing (pytest or similar).
- Experience working within mature legacy codebases and contributing to incremental modernization efforts.
What Success Looks Like
In the first 90 days
- Own core services or features.
- Deliver high-quality production-ready code and contribute meaningfully to team goals.
- Build strong working relationships within Engineering Product and partner teams.
In 612 months
- Lead development of one or more services or features with increasing autonomy.
- Help improve service performance reliability and scalability.
- Support and elevate engineering practices through mentorship code reviews and process improvements.
Required Experience:
IC
About Company
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