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Senior Python Flask Jobs in Massachusetts (NOW HIRING)

S&P Consultants

Senior Backend Software Engineer

Cambridge, MA · On-site

$133K - $176K/yr

As a Senior Backend Engineer, you will develop reliable, secure, and performant APIs that apply ... Python, Flask, FastAPI, Django REST Framework, PostgreSQL, Celery, RabbitMQ, Redis, Kafka, Jsonnet ...

S&P Global

Senior Backend Software Engineer

Cambridge, MA · On-site

$133K - $176K/yr

As a Senior Backend Engineer, you will develop reliable, secure, and performant APIs that apply ... Python, Flask, FastAPI, Django REST Framework, PostgreSQL, Celery, RabbitMQ, Redis, Kafka, Jsonnet ...

Veracode

Sr Software Engineer in Test - Python

Burlington, MA · On-site

$120K - $156K/yr

... Python based infrastructure. • Focus on maintaining and increasing efficiency of currently ... Flask and/or SQLAlchemy strongly preferred. • Experience with Buildbot CI system a plus. • ...

Helen of Troy

Sr. AI Analytics Engineer

Marlborough, MA · On-site

$108K - $148K/yr

OXO, Hydro Flask, Osprey, Honeywell, PUR, Braun, Vicks, Hot Tools, Drybar, Curlsmith, Revlon, and ... Utilize Python and modern analytics tooling to prototype, validate, and operationalize AI-enabled ...

Helen of Troy

Sr. AI Analytics Engineer

Marlborough, MA · On-site

$108K - $148K/yr

OXO, Hydro Flask, Osprey, Honeywell, PUR, Braun, Vicks, Hot Tools, Drybar, Curlsmith, Revlon, and ... Utilize Python and modern analytics tooling to prototype, validate, and operationalize AI-enabled ...

Helenoftroy

Sr. AI Analytics Engineer

Marlborough, MA · Hybrid

OXO,Hydro Flask,Osprey,Honeywell,PUR,Braun,Vicks,Hot Tools,Drybar,Curlsmith,Revlon, andOlive & June ... Utilize Python and modern analytics tooling to prototype, validate, and operationalize AI-enabled ...

Klaviyo

Senior AI Engineer

Boston, MA · On-site

$113K - $155K/yr

They are seeking a Senior AI Engineer to design, build, and scale production-grade LLM integrations ... Python (FastAPI, Flask, or Django) and TypeScript or JavaScript, with experience in modern frontend ...

Markforged

Senior Software Engineer

Waltham, MA · On-site

$146K - $198K/yr

As a Senior Software Engineer focusing on Full-stack Node.js Web development, you will be building ... Python/Django/Flask, etc), building APIs services and scaling systems * UX & Prototyping:

Klaviyo

Senior AI Application Engineer

Boston, MA · On-site

They are seeking a Senior AI Application Engineer to design, build, and scale production-grade LLM ... Python (FastAPI, Flask, or Django) and TypeScript or JavaScript, with experience in modern frontend ...

Markforged

Senior Software Engineer

Waltham, MA · On-site

$146K - $198K/yr

As a Senior Software Engineer focusing on Full-stack Node.js Web development, you will be building ... Python/Django/Flask, etc), building APIs services and scaling systems * UX & Prototyping:

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Senior Python Flask information

What is a senior Python Flask developer?

A Senior Python Flask Developer is an experienced software engineer who specializes in building web applications using the Flask framework and the Python programming language. They are responsible for designing, developing, testing, and maintaining backend services and APIs, often working with databases, cloud services, and other technologies. Senior developers are also expected to mentor junior team members, lead projects, and ensure code quality and best practices throughout the development process.

What are the key skills and qualifications needed to thrive as a senior Python Flask developer?

To thrive as a Senior Python Flask Developer, you need advanced proficiency in Python programming, experience with the Flask framework, and a solid understanding of RESTful APIs, typically supported by a degree in computer science or related field. Familiarity with tools like Git, Docker, SQL/NoSQL databases, and cloud platforms such as AWS or Azure is commonly required, along with relevant certifications. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastering these skills ensures you can build robust, scalable web applications and lead project success in dynamic development environments.

What are some common challenges senior Python Flask developers face when working on large-scale web applications?

Senior Python Flask developers often encounter challenges such as managing application scalability, ensuring code maintainability, and integrating with various third-party services. Handling complex database relationships and optimizing API performance are also common issues, especially as user traffic grows. Effective collaboration with frontend developers and DevOps teams is essential to address deployment, security, and continuous integration concerns, making strong communication and problem-solving skills crucial for success in this role.

What is the difference between Senior Python Flask vs Python Developer?

AspectSenior Python FlaskPython Developer
Primary FocusWeb application development using Flask framework, with leadership responsibilitiesGeneral Python programming, including scripting, data analysis, and application development
Experience LevelAdvanced, with expertise in Flask, architecture, and mentoringEntry to mid-level, with broad Python skills
CertificationsOften includes Python or web development certificationsMay have Python certifications, but less specialized
Work EnvironmentTech companies, startups, or agencies focusing on web appsVaried industries, including data science, automation, and software development

Senior Python Flask roles focus on building and leading web applications with Flask, requiring specialized knowledge and leadership. Python Developers have broader Python skills applicable across multiple domains. The choice depends on whether you want to specialize in web development or pursue general Python programming.

Is senior Python Flask in demand?

Senior Python Flask developers are in high demand due to the framework's popularity for building scalable web applications and APIs. Companies seek professionals with experience in Python, Flask, and related tools like SQL databases and cloud platforms, reflecting strong job growth in software development roles.

Which senior Python Flask job has the highest salary?

Senior Python Flask developers with specialized skills in cloud computing, microservices, or data engineering tend to have the highest salaries. Roles in industries like finance, technology, and healthcare often offer higher compensation, especially for those with extensive experience and certifications in relevant frameworks and tools.

What are the most commonly searched types of Python Flask jobs in Massachusetts?

The most popular types of Python Flask jobs in Massachusetts are:

Senior Python Flask jobs near you

Senior Backend Software Engineer

S&P Global, Inc.

Cambridge, MA • On-site

$150 - $225/hr

Other

Medical, Dental, Vision, Retirement, PTO

Re-posted 14 days ago

S&P Global rating

7.3

Company rating: 7.3 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

Job description

Kensho is S&P Global’s hub for AI innovation and transformation. With expertise in machine learning, natural language processing, and data discovery, we develop and deploy novel solutions to innovate and drive progress at S&P Global and its customers worldwide. Kensho’s solutions and research focus on business and financial generative AI applications, agents, data retrieval APIs, data extraction, and much more.

At Kensho, we hire talented people and give them the autonomy and support needed to build amazing technology and products. We collaborate using diverse perspectives to solve hard problems. Our communication is open, honest, and efficient. We dedicate time and resources to explore new ideas while staying rooted in engineering best practices, allowing us to innovate rapidly and deliver technology that is scalable, robust, and useful.

As a Senior Backend Engineer, you will develop reliable, secure, and performant APIs that apply Kensho’s AI capabilities to specific customer workflows. You will collaborate with colleagues from Product, Machine Learning, Infrastructure, and Design, and with other engineers within Applications. You possess a demonstrated capacity for depth and are comfortable working with a broad range of technologies. Your verbal and written communication is proactive, efficient, and inclusive of geographically‑distributed colleagues.

Salary range: 150k–225k. Eligible for an annual incentive bonus and equity plans.

What You’ll Do:
  • Design, develop, test, document, deploy, maintain, and improve software
  • Manage individual project priorities, deadlines, and deliverables
  • Work with key stakeholders to develop system architectures, API specifications, implementation requirements, and complexity estimates
  • Test assumptions through instrumentation and prototyping
  • Promote ongoing technical development through code reviews, knowledge sharing, and mentorship
What You’ll Need:
  • At least five years of direct experience developing customer‑facing APIs within a team
  • Thoughtful and efficient communication skills (both verbal and written)
  • Experience developing RESTful APIs using a variety of tools
  • Experience translating abstract business requirements into concrete technical plans
  • Experience working across many stages of the software development lifecycle
  • Sound reasoning about the behavior and performance of loosely‑coupled systems
  • Proficiency with algorithms (including time and space complexity analysis), data structures, and software architecture
  • At least one domain of demonstrable technical depth
Technologies & Tools We Use:
  • Python, Flask, FastAPI, Django REST Framework, PostgreSQL, Celery, RabbitMQ, Redis, Kafka, Jsonnet, Agentic Coding Tools (Claude Code, Codex, Cline)
  • AWS, Amazon EKS, Sentry, Prometheus, Git, Jenkins, GitHub Actions
Benefits:
  • Medical, Dental, and Vision insurance (100% company‑paid premiums)
  • Unlimited Paid Time Off
  • 26 weeks of 100% paid Parental Leave (paternity and maternity)
  • 401(k) plan with 6% employer matching
  • Generous company matching on donations to non‑profit charities
  • Up to $20,000 tuition assistance toward degree programs, plus up to $4,000/year for ongoing professional education such as industry conferences
  • Plentiful snacks, drinks, and regularly catered lunches
  • Dog‑friendly office (CAM office)
  • Bike sharing program memberships
  • Compassion leave and elder care leave
  • Mentoring and additional learning opportunities
  • Opportunity to expand professional network and participate in conferences and events

We are an equal‑opportunity employer that welcomes future Kenshins with all experiences and perspectives. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

Kensho is headquartered in Cambridge, MA, with an additional office location in New York City.

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