1

Senior Python Flask Developer Jobs in Billerica, MA

Senior DevOps Engineer

Boston, MA · On-site

$141K - $181K/yr

Saviance is seeking a Senior DevOps Engineer to enhance their platform infrastructure. The role ... Python, JavaScript, etc. • Hands-on experience with Docker, Docker Compose, Docker Swarm ...

Senior DevOps Engineer

Danvers, MA · On-site

$137K - $176K/yr

A well-known medical device manufacturer is looking for a full-time Senior DevOps Engineer to join ... Solid programming skills in C, Python, and Bash * Experience with DevOps tooling spanning ...

Senior DevOps Engineer

Woburn, MA · On-site

$134K - $184K/yr

As a Senior DevOps Engineer you will establish and maintain a continuous integration / continuous ... Implement automated build systems for C/C++ and Python codebases using CMake, Conan, and similar ...

Senior Software Engineer

Boston, MA · Hybrid

$133K - $175K/yr

About the Role Senior Software Developer (Python/Java) Title Senior Software Developer (Python/Java) Work Location Needham / Boston (minimum 4 days a week office presence) Position Summary We are ...

Senior Software Engineer

Waltham, MA · On-site

$132K - $174K/yr

Collaborate cross-functionally with product and engineering teams to solve real customer problems ... TypeScript, JavaScript (Node.js), Python, Java Frameworks: React, Spring Boot, Express, Flask APIs ...

Senior Software Engineer

Boston, MA · Hybrid

$133K - $175K/yr

About the Role Senior Software Developer (Python/Java) Title Senior Software Developer (Python/Java) Work Location Needham / Boston (minimum 4 days a week office presence) Position Summary We are ...

Showing results 41-60

Senior Python Flask Developer information

See Billerica, MA salary details

$58.4K

$150.8K

$207.1K

How much do senior python flask developer jobs pay per year?

As of Sep 15, 2026, the average yearly pay for senior python flask developer in Billerica, MA is $150,773.00, according to ZipRecruiter salary data. Most workers in this role earn between $129,000.00 and $173,600.00 per year, depending on experience, location, and employer.

What is a senior Python Flask developer?

Senior Python Flask Developers are experienced software engineers who specialize in building web applications using the Python programming language and the Flask web framework. They are responsible for designing, developing, and maintaining scalable backend systems, APIs, and web services. In addition to strong coding skills, they often lead projects, mentor junior developers, and ensure best practices in code quality, security, and performance. Their expertise allows them to solve complex technical challenges and contribute to the overall architecture and success of software projects.

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

To thrive as a Senior Python Flask Developer, you need advanced proficiency in Python, deep understanding of the Flask framework, and experience designing scalable backend architectures, typically supported by a degree in computer science or related field. Familiarity with RESTful API development, database management systems like PostgreSQL or MySQL, and version control tools such as Git is essential, and certifications in cloud platforms or web development can be beneficial. Strong problem-solving skills, clear communication, and the ability to mentor junior developers are standout soft skills for this role. These abilities ensure efficient delivery of robust, maintainable web applications and foster productive collaboration within development teams.

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

Senior Python Flask Developers often encounter challenges such as managing complex codebases, ensuring scalability, and maintaining performance as applications grow. Integrating Flask with other technologies (like databases, caching systems, or third-party APIs) can introduce architectural complexities. Additionally, balancing rapid development with writing maintainable, well-tested code is crucial. Collaboration with frontend developers, DevOps, and QA teams is frequent, requiring strong communication and problem-solving skills.

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

AspectSenior Python Flask DeveloperPython Developer
Required CredentialsBachelor's in CS or related, experience with Flask, REST APIsBachelor's in CS or related, basic Python knowledge
Work EnvironmentWeb development teams, startups, tech companiesSoftware development teams, startups, tech companies
Employer & Industry UsageTech firms, SaaS companies, startupsVariety of industries including finance, healthcare, tech
Search & Comparison IntentAdvanced roles, leadership, project scopeEntry to mid-level development, learning

The main difference between a Senior Python Flask Developer and a Python Developer lies in experience and responsibilities. Senior developers typically have more expertise in Flask, lead projects, and mentor junior staff, whereas Python Developers may focus on coding and basic application development. Both roles are essential in web development teams, but senior roles require deeper knowledge and leadership skills.

What are popular job titles related to Senior Python Flask Developer jobs in Billerica, MA?

For Senior Python Flask Developer jobs in Billerica, MA, the most frequently searched job titles are:

What job categories do people searching Senior Python Flask Developer jobs in Billerica, MA look for?

The top searched job categories for Senior Python Flask Developer jobs in Billerica, MA are:

What cities near Billerica, MA are hiring for Senior Python Flask Developer jobs?

Cities near Billerica, MA with the most Senior Python Flask Developer job openings:

Infographic showing various Senior Python Flask Developer job openings in Billerica, MA as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 13% Part Time, 1% Temporary, and 5% Contract. Highlights an 76% Physical, 6% Hybrid, and 18% Remote job distribution, with an average salary of $150,773 per year, or $72.5 per hour.

Senior Lead Software Engineer, Distributed Systems (Golang + Python on Kubernetes)

Cambridge, MA • On-site

Capital One
Funds, Trusts and Financial Programs • 10K+ employees

Full-time

Re-posted 2 days ago


Capital One rating

7.8

Company rating: 7.8 out of 10

Based on 148 frontline employees who took The Breakroom Quiz


Job description

Senior Lead Software Engineer, Distributed Systems (Golang + Python on Kubernetes)

Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs.

We are seeking Full Stack/Back End Software Engineers who are passionate about marrying data with emerging technologies. As a Capital One Software Engineer, you'll have the opportunity to be on the forefront of driving a major transformation within Capital One.

The Machine Learning Experience Team (MLX Tech) is committed to pioneering and responsibly implementing AI/ML across Capital One. We achieve this by building platforms that enable the rapid and responsible development and deployment of AI/ML solutions at scale. MLX Tech harnesses the power of Generative AI to assist Capital one customers. Our mission is driven by our passionate, collaborative, and interdisciplinary team, being trusted partners to unleash the full power of machine learning and AI.

What You'll Do:

  • Lead a portfolio of diverse technology projects and a team of developers with deep experience in distributed microservices, and full stack systems to create solutions that help meet regulatory needs for the company

  • Share your passion for staying on top of tech trends, experimenting with and learning new technologies, participating in internal & external technology communities, mentoring other members of the engineering community, and from time to time, be asked to code or evaluate code

  • Collaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help millions of Americans achieve financial empowerment

  • Utilize programming languages like JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, and Go, Open Source RDBMS and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of AWS tools and services

Basic Qualifications:

  • Bachelor's Degree

  • At least 6 years of experience in software engineering (Internship experience does not apply)

  • At least 1 year experience with cloud computing (AWS, Microsoft Azure, Google Cloud)

Preferred Qualifications:

  • Master's Degree

  • 9+ years of experience in at least one of the following: Python, Golang, or Node.js

  • 4+ years of experience with AWS, GCP, Azure, or another cloud service

  • 4+ years of experience in open source frameworks

  • 2+ years of experience in Kubernetes: hands-on deploying and managing large-scale apps on Kubernetes

  • 1+ years of people management experience

  • 2+ years of experience with Amazon SageMaker, Databricks, or another comprehensive ML platform

  • Experience leveraging interactive AI tooling to accelerate productivity, utilizing capabilities beyond basic code completion

Capital One will consider sponsoring a new qualified applicant for employment authorization for this position.

The minimum and maximum full-time annual salaries for this role are listed below, by location. Please note that this salary information is solely for candidates hired to perform work within one of these locations, and refers to the amount Capital One is willing to pay at the time of this posting. Salaries for part-time roles will be prorated based upon the agreed upon number of hours to be regularly worked.

Cambridge, MA: $229,900 - $262,400 for Sr. Lead Software Engineer


McLean, VA: $229,900 - $262,400 for Sr. Lead Software Engineer


New York, NY: $250,800 - $286,200 for Sr. Lead Software Engineer


San Francisco, CA: $250,800 - $286,200 for Sr. Lead Software Engineer


San Jose, CA: $250,800 - $286,200 for Sr. Lead Software Engineer







Candidates hired to work in other locations will be subject to the pay range associated with that location, and the actual annualized salary amount offered to any candidate at the time of hire will be reflected solely in the candidate's offer letter.

This role is also eligible to earn performance based incentive compensation, which may include cash bonus(es) and/or long term incentives (LTI). Incentives could be discretionary or non discretionary depending on the plan.

Capital One offers a comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being. Learn more at theCapital One Careers website. Eligibility varies based on full or part-time status, exempt or non-exempt status, and management level.

This role is expected to accept applications for a minimum of 5 business days.No agencies please. Capital One is an equal opportunity employer (EOE, including disability/vet) committed to non-discrimination in compliance with applicable federal, state, and local laws. Capital One promotes a drug-free workplace. Capital One will consider for employment qualified applicants with a criminal history in a manner consistent with the requirements of applicable laws regarding criminal background inquiries, including, to the extent applicable, Article 23-A of the New York Correction Law; San Francisco, California Police Code Article 49, Sections 4901-4920; New York City's Fair Chance Act; Philadelphia's Fair Criminal Records Screening Act; and other applicable federal, state, and local laws and regulations regarding criminal background inquiries.

If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-800-304-9102 or via email at RecruitingAccommodation@capitalone.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.

For technical support or questions about Capital One's recruiting process, please send an email to Careers@capitalone.com

Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).


What Capital One employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom