Senior Fastapi Developer Jobs in Reston, VA (NOW HIRING)

Location: McLean

Other locations: Primary Location Only

At EY, we’re all in to shape your future with confidence.

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help build a better working world.

From strategy to execution, the Government and Public Sector practice of Ernst & Young provides a full range of consulting and audit services to help our Federal, State, Local and Education clients implement new ideas to help achieve their mission outcomes. We deliver real change and measurable results through our diverse, high-performing teams, quality work at the highest professional standards, operational know-how from across our global organization, and creative and bold ideas that drive innovation. We enable our government clients to achieve their mission of protecting the nation and serving the people; increasing public safety; improving healthcare for our military, veterans, and citizens; delivering essential public services; and helping those in need. EY is ready to help our government build a better working world.

EY delivers unparalleled service in big data, business intelligence, and digital analytics built on a blend of custom-developed methods related to customer analytics, data visualization, and optimization. We leverage best practices and a high degree of business acumen that has been compiled over years of experience to ensure the highest level of execution and satisfaction for our clients. At EY, our methods are not tied to any specific platforms but rather arrived at by analyzing business needs and making sure that the solutions delivered meet all client goals.

You will help our clients navigate the complex world of modern AI, data and analytics. We’ll look to you to provide our clients with a unique business perspective on how data science and analytics can transform and improve their entire organization – starting with key business issues they face. This is a high growth, high visibility area with plenty of opportunities to enhance your skillset and build your career.

Our GenAI Developer will be responsible for designing and optimizing applications that leverage modern web frameworks and AI models. You can expect to support government clients with delivering the latest data science and big data technologies and practices to design, build and maintain scalable and robust solutions that unify, enrich and analyze data from multiple sources. You’ll be responsible for implementing generative AI models, working with AI/ML engineers, developing web applications and ensuring quality and product excellence.

• Experience with back-end development (Python, FastAPI or similar)
• Understanding of cloud platforms such as AWS, Azure, Vercel etc.
• Experience developing, maintaining and improving web applications using modern frameworks (React, Next.js, Svelte, Vue, Remix/React Router, etc.)
• Understanding of generative AI models (openAI, Anthropic, open-source LLMs) into web-based products
• Experience working with designers, product managers, AI/ML engineers to create intelligent user experience
• Experience writing tests, participating in code reviews
• Designing, architecting, and developing solutions leveraging big data technology (Open Source, Hortonworks, AWS or Microsoft) to ingest, process and analyze large, disparate data sets to exceed business requirements
• Unifying, enriching, and analyzing customer data to derive new insights and opportunities
• Leveraging in-house data platforms as needed and recommending and building new data platforms/solutions as required to exceed business requirements
• Clearly communicating findings, recommendations, and opportunities to improve data systems and solutions
• Demonstrating deep understanding of and ability to teach data science, concepts, tools, features, functions, and benefits of different approaches to apply them
• Seeking out information to learn about emerging methodologies and technologies
• Clarifying problems by driving to understand the true issue
• Looking for opportunities for improving methods and outcomes
• Applying data driven approach (KPIs) in tying technology solutions to specific business outcomes
• Collaborating, influencing, and building consensus through constructive relationships and effective listening
• Solving problems by incorporating data into decision making

• Must have a Bachelor's degree
• Must be eligible to obtain and maintain a Secret Clearance
• Must have at least 3-5+ years of experience with the following:
  • Modern web development (JavaScript/TypeScript etc.)
  • Backend development (Node.js, Python, FastAPI or similar)
  • Experience integrating generative AI models into applications (APIs or fine-tuned models)
  • Experience deploying applications on cloud platforms (AWS, Azure, Vercel, etc.)
• Understanding statistical modeling as well as ETL, data ingestion/cleansing and engineering skills
• Hands-on experience with various big data technologies in one or more ecosystems (Hadoop, AWS or Microsoft)
• Must be comfortable working in-person as needed

• Bachelor’s Degree or above in mathematics, information systems, statistics, computer science, or related disciplines
• Experience with vector databases and AI inference optimizations
• Experience with open-source AI and web projects
• Experience with RAG or fine-tuning models
• Thorough business understanding of data science application and ability to communicate with key decision-makers
• Communication is essential, must be able to listen and understand the question and develop and deliver clear insights

Due to the nature of our work in the Government and Public Sector, work may be required to be completed at client, EY and/or contractor sites. Our goal is to assign professionals to projects within a commutable distance of their work location office. In certain circumstances, travel may be required beyond your work location based on client and project needs. Candidates should be willing to travel 20 – 30% or more.

We’re interested in passionate leaders with strong vision and a desire to stay on top of trends in the Data Analytics and AI industry. If you have a genuine passion for helping businesses achieve the full potential of their data, this role is for you.

At EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learn more.

• We offer a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. The base salary range for this job in all geographic locations in the US is $106,900 to $176,500. The base salary range for New York City Metro Area, Washington State and California (excluding Sacramento) is $128,400 to $200,600. Individual salaries within those ranges are determined through a wide variety of factors including but not limited to education, experience, knowledge, skills and geography. In addition, our Total Rewards package includes medical and dental coverage, pension and 401(k) plans, and a wide range of paid time off options.
• Join us in our team-led and leader-enabled hybrid model. Our expectation is for most people in external, client serving roles to work together in person 40-60% of the time over the course of an engagement, project or year.
• Under our flexible vacation policy, you’ll decide how much vacation time you need based on your own personal circumstances. You’ll also be granted time off for designated EY Paid Holidays, Winter/Summer breaks, Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well-being.

EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.

Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.

EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

EY provides equal employment opportunities to applicants and employees without regard to race, color, religion, age, sex, sexual orientation, gender identity/expression, pregnancy, genetic information,national origin, protected veteran status, disability status, or any other legally protected basis, including arrest and conviction records, in accordance with applicable law.

EY is committed to providing reasonable accommodation to qualified individuals with disabilities including veterans with disabilities. If you have a disability and either need assistance applying online or need to request an accommodation during any part of the application process,please call 1-800-EY-HELP3, select Option 2 for candidate related inquiries, then select Option 1 for candidate queries and finally select Option 2 for candidates with an inquiry which will route you to EY’s Talent Shared Services Team (TSS) or email the TSS at ssc.customersupport@ey.com .

EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.