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Senior Fastapi Developer Jobs in Boston, MA (NOW HIRING)

Build Cadonix is seeking a Senior Software Engineer to play a key role in designing, building, and ... Experience in Python, experience in web frameworks (FastAPI, Nuxt), and experience in distributed ...

Founding Senior Software Engineer

Cambridge, MA · On-site

$133K - $176K/yr

Strong backend engineering skills -- you've built and scaled real systems (we use Python, but care ... Technical Stack Python (Django/DRF, FastAPI), React/TypeScript, PostgreSQL, Redis, Celery, AWS ...

Senior Software Engineer

Somerville, MA · On-site

$133K - $176K/yr

An impressive mission requires an equally impressive Senior Software Engineer. As a key technical ... Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ...

Senior Software Engineer

Somerville, MA

$133K - $176K/yr

An impressive mission requires an equally impressive Senior Software Engineer. As a key technical ... Developing RESTful APIs (using frameworks such as FastAPI) secured by OAuth2/Auth * Integrating ...

... developer experience. Qualifications : Required : • 5+ years of software engineering or test ... pytest, FastAPI TestClient, Pydantic). • Demonstrated experience designing evaluation or ...

... developer experience. Required skills and qualifications * 5+ years of software engineering or test ... pytest, FastAPI TestClient, Pydantic). * Demonstrated experience designing evaluation or ...

Senior AI Engineer

Boston, MA · On-site

$140 - $180/hr

You will design and implement backend services using Python and FastAPI, and integrate with various ... Strong backend engineering experience with Python * Hands-on experience building APIs/services with ...

New

Our team is looking for a Sr. AI Engineer on the Customer Agent team, Klaviyo's AI-native ... Proficient in Python and modern backend frameworks (FastAPI, Django preferred). * Experience ...

Senior AI Engineer - Customer Agent

Boston, MA · On-site

$113K - $155K/yr

Our team is looking for a Sr. AI Engineer on the Customer Agent team, Klaviyo's AI-native ... Proficient in Python and modern backend frameworks (FastAPI, Django preferred). * Experience ...

Showing results 41-60

Senior Fastapi Developer information

See Boston, MA salary details

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$67

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How much do senior fastapi developer jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for senior fastapi developer in Boston, MA is $67.06, according to ZipRecruiter salary data. Most workers in this role earn between $56.92 and $75.19 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.

What are the most commonly searched types of Fastapi Developer jobs in Boston, MA?

The most popular types of Fastapi Developer jobs in Boston, MA are:

What are popular job titles related to Senior Fastapi Developer jobs in Boston, MA?

For Senior Fastapi Developer jobs in Boston, MA, the most frequently searched job titles are:

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The top searched job categories for Senior Fastapi Developer jobs in Boston, MA are:

What cities near Boston, MA are hiring for Senior Fastapi Developer jobs?

Cities near Boston, MA with the most Senior Fastapi Developer job openings:

Senior Software Engineer

Socket.dev

Framingham, MA • On-site

$140 - $190/hr

Other

Posted 17 days ago


Job description

About Re:Build Manufacturing

Re:Build Manufacturing is a growing family of industrial and engineering businesses combining enabling technologies, operational superiority, and strategic M&A to build America’s next generation industrial company. At Re:Build we deploy deep expertise in engineering, operations management, and technology to supercharge the performance of our member companies. We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes. Ours is a fast-paced environment where individuals can stretch and be challenged to pursue their fullest potential.

Re:Build was founded to pioneer a profitable model for the revitalization of US manufacturing. We’ve assembled a powerful set of complimentary capabilities and lines of business that enable us to pursue a wide range of end markets. Our acquired businesses are grounded in build-to-print and by-the-hour engineering and design services, and we’re leveraging their combined expertise to migrate to increasingly sophisticated program development and production, as well as the generation of our own products. Our unique set of capabilities lend themselves to highly complex systems and products, and we offer customers a range of services including product and systems design, automation, fabrication, assembly, and large volume contract manufacturing. Our customers span a wide array of industries including aerospace, defense, mobility, healthcare, pharma, biotech, clean tech, chemicals, energy, lifestyle, food production, and industrial equipment.

About Cadonix

Cadonix is the undisputed global leader in cloud-delivered ECAD tools for full end-to-end design, simulation, manufacture and management of wire harness designs and costing. Created from the ground up for the new age of collaborative online working, the Arcadia suite runs in the web browser and offers unprecedented flexibility in terms of use, licensing, systems integration and supply chain collaboration. Harness manufacturers, Tier 1 suppliers and OEMs are enjoying the benefits of Arcadia today.

Who we are looking for

Re:Build Cadonix is seeking a Senior Software Engineer to play a key role in designing, building, and scaling innovative new cloud-enabled products in the wire harness design and manufacturing space.

What you get to do
  • Lead the design and architecture of a cloud-centric software + hardware product, ensuring high-performance for a multi-tenant application with real-time interactions between cloud components and hardware in customer locations.
  • Facilitate design reviews, failure mode analyses, and trade-off analyses to select architectures and configurations that result in high product availability and reliability.
  • Mentor junior engineers, fostering a culture of technical excellence and continuous improvement, including in system design, validation, and documentation.
  • Drive agile processes by contributing to sprint planning, retrospectives, and team wide planning initiatives.
  • Collaborate with product managers, QA engineers, and applications engineers to define requirements and deliver solutions.
What you bring to the Team
  • Bachelor’s degree in Computer Science, Electrical Engineering, or related field, plus related work experience.
  • 7+ years of professional experience in software development.
  • Proficiency in designing and implementing distributed systems and cloud connected applications in AWS.
  • Experience in Python, experience in web frameworks (FastAPI, Nuxt), and experience in distributed task management (Celery).
  • Excellent communication skills and ability to collaborate effectively with cross functional teams.
  • History of mentoring engineers and leading technical initiatives.
Preferred Skills
  • Experience with high-availability systems that combine hardware and software components (e.g., IoT, embedded systems, or edge computing), experience with MQTT.
  • Demonstrated experience with agile development methodologies and CI/CD practices.
  • Experience deploying multi-tenant applications in AWS.
  • Experience working with international teams across multiple timezones.

Location: Position based in Framingham, MA

Work Week: Hybrid 3 days in / 2 days remote

The BIG payoff

We are a company who is going to make a difference in the industries and the communities in which we choose to operate.

Every employee of Re:Build will share ownership in the company and will share in the financial rewards of the success we achieve together, at all levels of the company!

We want to work with people that reflect the communities in which we operate

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affi…

We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure and life experiences. Or for any other reason.

Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at accommodations.ta@ReBuildmanufacturing.com or you may call us at 617.909.6275.

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