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Fastapi Developer Jobs in Philadelphia, PA (NOW HIRING)

Best Egg

Lead Engineer II - Backend (Python)

Wilmington, DE · On-site

$100K - $135K/yr

Support continuous improvement in code quality, reliability, performance, and developer experience ... Expertise with at least one major Python web framework (FastAPI preferred; Django or Flask also ...

Pwc

GenAI Python Systems Engineer-Director

Philadelphia, PA · On-site

$155K - $410K/yr

... FastAPI endpoints for applications - Understanding AI techniques enhancing LLMs - Experience in prompt engineering for LLM outputs - Developing scalable data storage solutions using cloud services ...

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How much do fastapi developer jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for fastapi developer in Philadelphia, PA is $53.32, according to ZipRecruiter salary data. Most workers in this role earn between $40.77 and $65.24 per hour, depending on experience, location, and employer.

What are some common challenges FastAPI Developers face when integrating third-party services or APIs?

FastAPI Developers often encounter challenges when integrating third-party services, such as handling authentication protocols (like OAuth2), ensuring compatibility between JSON schemas, and managing asynchronous calls to avoid performance bottlenecks. It’s also common to troubleshoot and adapt to inconsistencies in external API documentation or rate limits. Collaborating closely with frontend teams and DevOps professionals helps streamline these integrations, ensuring robust, scalable API solutions.

What is the difference between Fastapi Developer vs Backend Developer?

AspectFastapi DeveloperBackend Developer
Required SkillsPython, Fastapi, REST APIs, async programmingMultiple languages (Python, Java, Node.js), REST/SOAP APIs, databases
Work EnvironmentWeb development, API-focused projects, microservicesBroader software development, server-side logic, database management
Industry UsageTech startups, SaaS, API-driven servicesEnterprise, e-commerce, finance, various industries

Fastapi Developers specialize in building high-performance APIs using Python and Fastapi, often within microservices architectures. Backend Developers have a broader scope, working with multiple languages and technologies to develop server-side applications across various industries. While Fastapi Developers focus on API efficiency, Backend Developers handle comprehensive backend systems.

What are the key skills and qualifications needed to thrive as a FastAPI Developer, and why are they important?

To thrive as a FastAPI Developer, you need strong proficiency in Python programming, RESTful API design, and experience with FastAPI, often supported by a background in computer science or related fields. Familiarity with tools like SQL/NoSQL databases, Docker, and cloud platforms, as well as knowledge of asynchronous programming and API documentation tools like Swagger, is typically required. Excellent problem-solving skills, attention to detail, and effective communication set outstanding FastAPI developers apart. These skills are crucial for building reliable, high-performance APIs that meet modern application demands and facilitate seamless team collaboration.

What is a FastAPI Developer?

A FastAPI Developer is a software engineer who specializes in building web applications and APIs using the FastAPI framework, which is a modern, fast (high-performance) web framework for Python. FastAPI Developers are responsible for designing, developing, and maintaining backend services and APIs that are efficient, robust, and scalable. They often work with databases, authentication, and deployment processes, and ensure that the API endpoints adhere to best practices for security and performance. Their work is crucial for enabling smooth communication between front-end applications and backend systems.
What are the most commonly searched types of Fastapi Developer jobs in Philadelphia, PA? The most popular types of Fastapi Developer jobs in Philadelphia, PA are:
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Fastapi Developer jobs near you
Infographic showing various Fastapi Developer job openings in Philadelphia, PA as of June 2026, with employment types broken down into 85% Full Time, 4% Part Time, and 11% Contract. Highlights an 82% Physical, 5% Hybrid, and 13% Remote job distribution, with an average salary of $110,904 per year, or $53.3 per hour.
Lead Engineer II - Backend (Python)

Lead Engineer II - Backend (Python)

Best Egg

Wilmington, DE

Full-time

Posted 4 days ago

Job description

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 institution—working together to create a better financial future for our customers and communities.


At Best Egg, you’ll find a culture grounded in our core values—putting 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 people’s financial lives.


With the strength of Barclays behind us, we offer expanded opportunities for growth, development, and career mobility across a global organization—while continuing to build the products and experiences that make Best Egg unique.


We’re looking for collaborative, curious problem-solvers who are excited to make an impact and grow with us.


We’re proud to be an equal opportunity employer committed to building a diverse and inclusive team.


The Lead Software Engineer II – Backend plays an important role in building and enhancing backend engineering solutions across the organization. This role focuses on designing and delivering reliable, high-quality Python services on AWS while contributing to technical discussions, improving engineering practices, and supporting team execution. You will work closely with senior engineers, Product, and other backend and frontend teams to build performant, maintainable, and scalable APIs, serverless functions, and containerized services.
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 APIs—from 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

  • 3–7 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 6–12 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.
Employee Benefits
Best Egg offers many additional benefits for our employees, including (but not limited to):
·       Pre-tax and post-tax retirement savings plans with a competitive company matching
program
·       Generous paid time-off plans including vacation, personal/sick time, paid short--
term and long-term disability leaves, paid parental leave, and paid company
holidays
·       Multiple health care plans to choose from, including dental and vision options
·       Flexible Spending Plans for Health Care, Dependent Care, and Health
Reimbursement Accounts
·       Company-paid benefits such as life insurance, wellness platforms, employee
assistance programs, and Health Advocate programs
·       Other great discounted benefits include identity theft protection, pet insurance,
fitness center reimbursements, and many more!
 
 
In compliance with the CCPA, Best Egg is fully committed to handling the personal information and data of employees and job applications responsibly with respect and due care. Review our CCPA Employee Policy  here