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Senior Python Developer Jobs in Chelmsford, MA (NOW HIRING)

Judge Group, Inc.

Senior AWS Developer

Quincy, MA · On-site

$54 - $64/hr

The Sr. AWS Developer's primary role is to support the design and development of a serverless ... AWS Lambda (Python runtime) * AWS Step Functions * API Gateway (REST/HTTP APIs) * Amazon Cognito

Medtronic

Sr. Software DevOps Engineer

Newton, MA · On-site

$142K - $183K/yr

As a Sr. Software DevOps Engineer, you will play a pivotal role in accelerating our software ... Proficient in languages such as Python, C++, Bash, or similar * Extensive experience with ...

Medtronic

Sr. Software DevOps Engineer

Newton, MA · On-site

$142K - $183K/yr

As a Sr. Software DevOps Engineer, you will play a pivotal role in accelerating our software ... Proficient in languages such as Python, C++, Bash, or similar * Extensive experience with ...

Saviance

Senior Java/AWS Engineer -with LIMS

Boston, MA · On-site

$135K - $178K/yr

They are seeking a skilled Senior Java/AWS Engineer -with LIMS to collaboratively solve complex ... Some Python programming is preferred Company : Saviance is a modern consulting firm providing a ...

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All JobsPython Developer JobsSenior Python Developer JobsSenior Python Developer Jobs in Chelmsford, MA

Senior Python Developer information

See Chelmsford, MA salary details

$57.1K

$147.5K

$202.6K

How much do senior python developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for senior python developer in Chelmsford, MA is $147,514.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,200.00 and $169,900.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a senior Python developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

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

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by senior Python developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.

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

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

Are senior Python developers still in demand?

Senior Python developers remain in high demand due to the language's versatility in web development, data analysis, machine learning, and automation. Companies seek experienced developers with skills in frameworks like Django or Flask, and proficiency in cloud platforms and APIs enhances job prospects.

How much does a senior Python developer make?

A senior Python developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and industry. They often possess strong skills in frameworks like Django or Flask and may hold certifications or advanced degrees that influence salary levels.

What does a senior Python developer do?

A senior Python developer designs, develops, and maintains complex software applications using Python. They often lead projects, review code, optimize performance, and collaborate with cross-functional teams, requiring strong problem-solving skills and knowledge of frameworks like Django or Flask. Additionally, they may mentor junior developers and ensure code quality through testing and best practices.

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

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

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

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

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

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

Senior Python Developer jobs near you
Infographic showing various Senior Python Developer job openings in Chelmsford, MA as of July 2026, with employment types broken down into 80% Full Time, 8% Part Time, 1% Temporary, and 11% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $147,514 per year, or $70.9 per hour.

Senior Machine Learning Engineer ml/python/Wilmington ma

Motion Recruitment Partners, LLC

Wilmington, MA • On-site

$114K - $156K/yr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 16 days ago

Job description

Job Description
A full-service product development consultancy specializing in medical devices, robotic systems and automation is hiring a Senior Machine Learning Engineer. As a Machine Learning Engineer you will be expected to own the full ML lifecycle, from raw sensor data to a model running on constrained hardware.
In this role you will design and utilize data pipelines for sensor data. Your responsibilities include training, optimizing, and deploying machine learning models for signal processing and anomaly detection on edge devices, collaborating with embedded engineers to integrate and validate inference within device software. Additionally, you will build MLOps infrastructure, participate in sensor selection and validation, and document model development to support both regulatory submissions and internal quality processes.
Required Skills & Experience
  • Strong proficiency in Python
  • Hands on experience in PyTorch or TensorFlow
  • Experience deploying models to edge using TFLite, ONNX, CoreML, TensorRT, or equivalent
  • Experience building sensor data pipelines
  • Proficiency with MLOps
  • Solid Software engineering fundamentals
  • Proficiency in C or C++
Desired Skills & Experience
  • 5 years of machine learning engineering or applied ML
  • Experience with physiological signal processing for medical or wearable applications
  • Background in robotics, or autonomous systems
  • Experience in a startup or small team
  • Degree in a relevant field
What You Will Be Doing
Daily Responsibilities
  • 100% Hands On
  • Develop and troubleshoot workflows for collecting, cleaning, and organizing sensor data.
  • Build and refine ML models for real-time device applications and performance improvements
  • Work closely with firmware teams to embed and test AI features on hardware platforms
  • Set up and oversee tools for tracking experiments, automating evaluations and managing deployments
  • Analyze model behavior, ensure reliability and resolve issues to maintain highquality outputs
The Offer
  • Bonus OR Commission eligible
You will receive the following benefits
  • Medical Insurance
  • Dental Benefits
  • Vision Benefits
  • Paid Time Off (PTO)
  • 401(k) {including match - if applicable}

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

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