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Senior Fastapi Developer Jobs in Princeton, NJ (NOW HIRING)

eigenblue

Senior AI Engineer (m/f/d)

New York, NY · On-site

$114K - $157K/yr

As Senior AI Engineer (m/f/d) you will be at the forefront of building our AI product from the ... and FastAPI * Work closely with various stakeholders, such as AI and Data Engineers, Product ...

twenty80.io

Senior Full Stack Software Engineer

New York, NY · On-site +1

$160K - $210K/yr

About the Role A growing technology startup is hiring a Senior Full Stack Software Engineer to help ... Backend: Node.js (Express or NestJS) and/or Python (Django or FastAPI) * Databases: PostgreSQL ...

Scale Microgrid Solutions

Sr Software Engineer

New York, NY · On-site

$134K - $176K/yr

We are looking for a full-stack software engineer to build software to efficiently manage ... Architect and maintain high-performance backend services and APIs (FastAPI, PostgreSQL) to support ...

Newcode.ai

Senior Fullstack Developer

New York, NY · On-site

$59.50 - $78.75/hr

The role You'll build features the whole way through: the FastAPI service and data work on the back, the React interface on the front. Most of what we build puts a language model in front of someone ...

Newcode.ai

Senior Fullstack Developer

New York, NY · On-site

$59.50 - $78.75/hr

The role You'll build features the whole way through: the FastAPI service and data work on the back, the React interface on the front. Most of what we build puts a language model in front of someone ...

Scale Microgrid Solutions

Sr Software Engineer

New York, NY · On-site

$134K - $176K/yr

We are looking for a full-stack software engineer to build software to efficiently manage ... Architect and maintain high-performance backend services and APIs (FastAPI, PostgreSQL) to support ...

Scale Microgrid Solutions

Sr Software Engineer

New York, NY · On-site

$134K - $176K/yr

We are looking for a full-stack software engineer to build software to efficiently manage ... Architect and maintain high-performance backend services and APIs (FastAPI, PostgreSQL) to support ...

PhysicsX

Senior Machine Learning Engineer

New York, NY · On-site

$114K - $157K/yr

Python, PyTorch, Pandas, fastAPI, Scipy, Kubeflow, among others. * Mentor and develop engineers and ... As a senior member of the team, you'll significantly influence our technical direction and will be ...

Scale Microgrid Solutions

Sr Software Engineer

New York, NY · On-site

$134K - $176K/yr

We are looking for a full-stack software engineer to build software to efficiently manage ... Architect and maintain high-performance backend services and APIs (FastAPI, PostgreSQL) to support ...

Newcode.ai

Senior Fullstack Developer

New York, NY · On-site

$59.50 - $78.75/hr

The role You'll build features the whole way through: the FastAPI service and data work on the back, the React interface on the front. Most of what we build puts a language model in front of someone ...

Bristol-Myers Squibb

Senior AI Engineer

Princeton, NJ · On-site

$109K - $150K/yr

Design, build, and deliver backend services and application components using Python/FastAPI ... DevOps, and Reliability: Build and maintain CI/CD pipelines, infrastructure-as-code, automated ...

Lev

Senior Backend Engineer

New York, NY · On-site

The Role We are looking for a passionate problem solver to join our engineering team. In this role ... Have demonstrable experience building Python APIs in Flask or FastAPI.. * A desire to work in a ...

Otsuka

Associate Director, Senior AI Engineer

Princeton, NJ · Hybrid

$109K - $150K/yr

We are seeking a hands on Sr. AI Platform Engineer (Associate Director) to collaborate and drive ... Strong Python engineering skills and proficiency with FastAPI or Flask for building AIpowered ...

Bristol Myers Squibb

Senior AI Engineer

Princeton, NJ · On-site

$109K - $150K/yr

Design, build, and deliver backend services and application components using Python/FastAPI ... DevOps, and Reliability: * Build and maintain CI/CD pipelines, infrastructure-as-code, automated ...

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How much do senior fastapi developer jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for senior fastapi developer in Princeton, NJ is $64.71, according to ZipRecruiter salary data. Most workers in this role earn between $54.95 and $72.60 per hour, depending on experience, location, and employer.

What does a Senior FastAPI Developer do?

A Senior FastAPI Developer designs, develops, and maintains backend web applications using the FastAPI framework in Python. They are responsible for building scalable APIs, optimizing performance, ensuring security best practices, and integrating with databases and external services. Senior developers also mentor junior team members, contribute to architecture decisions, and collaborate closely with front-end engineers and stakeholders to deliver robust software solutions.

What are the key skills and qualifications needed to thrive as a Senior FastAPI Developer?

To thrive as a Senior FastAPI Developer, you need deep expertise in Python, RESTful API design, and experience building scalable web backends, typically supported by a degree in computer science or related field. Familiarity with FastAPI, Docker, cloud platforms (such as AWS or Azure), and CI/CD tools is highly valued, along with proficiency in testing frameworks. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills enable the delivery of robust, efficient, and maintainable APIs that support business goals and high user demands.

What are some common challenges faced by Senior FastAPI Developers when scaling applications, and how can these be addressed?

Senior FastAPI Developers often encounter challenges related to managing high concurrency, optimizing API performance, and ensuring robust security as applications scale. To address these, it’s important to implement asynchronous programming practices, leverage efficient database queries, and utilize API gateways for better traffic management. Collaboration with DevOps and QA teams is also essential to automate deployments and monitor system health, ensuring smooth scaling and reliable user experiences.

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Senior Fastapi Developer jobs near you
Infographic showing various Senior Fastapi Developer job openings in Princeton, NJ as of July 2026, with employment types broken down into 81% Full Time, 9% Part Time, 1% Temporary, and 9% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $134,597 per year, or $64.7 per hour.

Senior Software Engineer, Backend - Care Platform Operations

Ro

New York, NY • On-site

$134K - $176K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 29 days ago

Key responsibilities

  • Design, build, and maintain scalable, reliable, and secure backend services supporting clinical and operational workflows.

  • Assess and improve system performance and reliability, and contribute to the team's architectural vision and technical roadmap.

  • Collaborate with cross-functional teams and participate in on-call rotations to ensure system reliability.

Job description

Join Tech @ Ro to build the future of healthcare, from the ground up!
At Ro, we believe that when people achieve their health goals, they can achieve their life goals. The highest-leverage way to move society forward is to give people their health, and the current healthcare system isn't built to do that. It was built to bill, not to serve patients.
We're building a new system. One where the patient is in control. One designed from scratch for the digital age.
At Ro, technology isn't just a function... It's core to how we deliver care. We've built a vertically integrated healthcare platform that connects telehealth, diagnostics, pharmacy, and logistics into a seamless, end-to-end experience for millions of patients.
...and we're just getting started.
As part of Tech @ Ro, you'll work on systems that operate at scale, with an opportunity to:
  • Solve complex, high-concurrency problems across a full-stack platform
  • Build and ship quickly with tight feedback loops and real-world impact
  • Own systems end-to-end, from architecture to production performance
  • Work alongside experienced operators, technical leaders, and clinicians
  • Help define how modern healthcare should be delivered

We're a performance-driven team with a strong sense of ownership and urgency. We move fast, learn quickly, and hold a high bar for what we build, and do so with a big heart - because patients depend on it.
If you're motivated by impact, scale, and the chance to help lead the patient revolution, come build with us.
The Role
We're looking for a Senior Software Engineer to join the Care Platform Operations team at Ro. In this role, you'll design, build, and maintain scalable, reliable, and secure backend services that support how Ro delivers care, including systems for patient-provider communication, appointment scheduling, task routing, and care operations workflows increasingly powered by AI and intelligent automation.
As a senior member of the team, you'll help define the technical roadmap and own initiatives from ideation through design, implementation, and maintenance. You'll partner closely with product, design, data, clinical, and care operations teams to build high-quality, compliant systems that reduce manual effort, improve accuracy, and help Ro scale care delivery for millions of patients.
What You'll Do:
  • Design and build scalable, reliable, and resilient distributed services using Python and FastAPI, supporting critical clinical and operational workflows
  • Operate as an owner within the team's domain and proactively assess and improve system performance and reliability.
  • Drive engineering excellence through best practices in testing, monitoring, observability, and performance optimization
  • Actively contribute to building the team's architectural vision and technical roadmap
  • Collaborate on code reviews and technical design documents to ensure the consistent application of best practices across relevant domains
  • Work closely with product, design, data and other stakeholders to help us build the best possible experiences for our providers, pharmacists, and patients
  • Participate in on-call rotations to ensure reliability of production systems

What You'll Bring to the Team:
  • 7+ years of software engineering experience
  • Experience architecting, designing and building scalable web applications and distributed systems
  • Proficiency with Python, relational databases, and frameworks like FastAPI or Django, with hands-on experience in metrics instrumentation and data-driven performance tuning leveraging Ro's load testing infrastructure and tools like Datadog
  • Proven track record of scaling complex, data-intensive backend systems through rapid 10x growth at a late-stage startup, ensuring high performance and availability
  • Deep understanding of distributed systems-data consistency, communication patterns, and service boundaries-backed by hands-on experience building and maintaining data-intensive production systems
  • Strong sense of ownership with the ability / desire to own technical roadmaps and refine ambiguous problems
  • Demonstrated ability to collaborate with other engineers and cross-functional partners to create the best possible products

Bonus Skills:
  • Experience in telehealth or other highly regulated industries
  • Experience with decoupling monolithic applications into distributed asynchronous services

We've Got You Covered:
  • Full medical, dental, and vision insurance + OneMedical membership
  • Healthcare and Dependent Care FSA
  • 401(k) with company match
  • Flexible PTO
  • Wellbeing + Learning & Growth reimbursements
  • Paid parental leave + Fertility benefits
  • Pet insurance
  • Student loan refinancing
  • Virtual resources for mindfulness, counseling, and fitness

We welcome qualified candidates of all races, creeds, genders, and sexuality to apply.
The target for this position ranges from $182,300 to $220,000, in addition to a competitive equity and benefits package (as applicable). When determining compensation, we analyze and carefully consider several factors, including location, job-related knowledge, skills and experience. These considerations may cause your compensation to vary.
Ro is consistently recognized as a top workplace in Health Care, in New York, and for Women and Parents-earning more than 20 honors from Fortune, Great Place to Work, and PEOPLE since 2021. In 2025 alone, we ranked top 5 among medium workplaces in Health Care and New York, and top 50 nationwide.
At Ro, we believe that our diverse perspectives are our biggest strengths - and that embracing them will create real change in healthcare. As an equal opportunity employer, we provide equal opportunity in all aspects of employment, including recruiting, hiring, compensation, training and promotion, termination, and any other terms and conditions of employment without regard to race, ethnicity, color, religion, sex, sexual orientation, gender identity, gender expression, familial status, age, disability and/or any other legally protected classification protected by federal, state, or local law.
Ro is committed to providing reasonable accommodations for qualified individuals with disabilities in our application and interview process. If you require a reasonable accommodation in the application or interview process, please contact us at [email protected].
See our California Privacy Policy here.
We may use automated tools, including artificial intelligence (AI), to assist with parts of our recruiting and hiring process, such as reviewing applications, evaluating resumes, and assessing responses or job-related qualifications. These tools are used to support our recruitment team and do not replace human judgment. Final hiring decisions are made by humans.

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