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Freelance Junior Python Developer Jobs in Massachusetts

Cushman & Wakefield

Junior Data Scientist

Boston, MA · On-site

This is not primarily an engineering role, though the ideal candidate will possess data engineering ... Proficiencyin Python and/or R for data analysis, modeling, and pipeline construction; working ...

STR

Senior Software Engineer

Woburn, MA · On-site

$130K - $172K/yr

... mentor junior engineers • Develop and test novel software solutions spanning research ... Python, C, C++, or similar interpreted or low-level programming languages • Experienced with ...

STR

Senior Software Engineer

Woburn, MA · On-site

$130K - $172K/yr

... mentor junior engineers • Develop and test novel software solutions spanning research ... Python, C, C++, or similar interpreted or low-level programming languages • Experienced with ...

STR

Lead Software Engineer

Woburn, MA · On-site

... mentor junior engineers • Develop and test novel software solutions spanning research ... Python, C, C++, or similar interpreted or low-level programming languages • Experienced with ...

STR

Lead Software Engineer

Woburn, MA · On-site

... mentor junior engineers • Develop and test novel software solutions spanning research ... Python, C, C++, or similar interpreted or low-level programming languages • Experienced with ...

UKG, Inc.

Software Engineer III (DevOps)

Lowell, MA · On-site

$52.25 - $71.75/hr

... junior engineers. You will work in a collaborative environment, contributing to the technical ... Shell/Python) and Google Cloud API's. * Have solid foundation in CI/CD concepts and well-versed ...

Symbotic

Sr. Test Engineer (Electrical)

Wilmington, MA · On-site

$117K - $153K/yr

This individual will lead technical projects, mentor junior engineers, collaborate cross ... Develop andmaintainautomated test software and frameworks (Python preferred) for instrument control ...

Symbotic

Sr. Test Engineer (Electrical)

Wilmington, MA · On-site

$117K - $153K/yr

This individual will lead technical projects, mentor junior engineers, collaborate cross ... Develop and maintain automated test software and frameworks (Python preferred) for instrument ...

Mapfre

Data Engineer III (Platform)

Webster, MA · On-site

$118K - $142K/yr

... • Mentor junior developers and team members. • Implement scalable and flexible, high ... Required : • Bachelor's Degree with 6+ years of experience. • Well versed in Python, Node.js, ...

Staffingine LLC

Test Engineer

Bedford, MA · On-site

Implement automated regression suites (Python/Robot Framework, Jenkins, Ansible, IXIA/Spirent ... Guide junior test engineers, platform SPO test reps, and Government civilians on best practices for ...

Fairygodboss

Software Engineer III (DevOps)

Lowell, MA · On-site

$102.30 - $147.05/hr

... junior engineers. You will work in a collaborative environment, contributing to the technical ... Deep expertise in one or more programming languages such as C#, .NET, Python, Java, or JavaScript.

Tulip Interfaces

Lead DevOps Engineer

Somerville, MA · On-site

$57.50 - $78.75/hr

... Python, Bash) * Bachelor's degree in Computer Science, Engineering, or equivalent practical ... Mentor and coach junior and mid-level engineers through code reviews, pairing sessions, and regular ...

Tulip Interfaces

Lead DevOps Engineer

Somerville, MA · On-site

$57.50 - $78.75/hr

... Python, Bash) * Bachelor's degree in Computer Science, Engineering, or equivalent practical ... Mentor and coach junior and mid-level engineers through code reviews, pairing sessions, and regular ...

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Freelance Junior Python Developer information

What does a freelance junior Python developer do?

A Freelance Junior Python Developer is an entry-level programmer who works independently or through contracts to build, test, and maintain software using the Python programming language. They often assist with coding small features, fixing bugs, and supporting more senior developers on projects. Their tasks may include writing simple scripts, working on websites or applications, and learning best practices in software development. Because they are freelancers, they typically work for multiple clients rather than a single employer.

What are some common challenges faced by freelance junior Python developers, and how can they be addressed?

Freelance Junior Python Developers often encounter challenges such as managing multiple projects simultaneously, communicating effectively with clients who may have limited technical knowledge, and keeping up with rapidly evolving technologies. To address these challenges, it's important to develop strong organizational skills, set clear expectations with clients, and continuously invest time in learning new libraries and frameworks. Joining online communities and seeking mentorship can also provide valuable support and opportunities for growth.

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

To thrive as a Freelance Junior Python Developer, you need a solid understanding of Python programming, basic software development principles, and familiarity with version control systems, typically supported by a relevant degree or coding bootcamp certification. Competence with tools like Git, basic web frameworks (e.g., Flask or Django), and cloud platforms (such as AWS or Heroku) is often required. Strong communication, time management, and problem-solving abilities help you collaborate with clients and deliver projects on schedule. These skills enable you to produce reliable code, respond effectively to client needs, and build a reputation for professionalism in the competitive freelance market.

What is the difference between Freelance Junior Python Developer vs Freelance Data Analyst?

AspectFreelance Junior Python DeveloperFreelance Data Analyst
Required SkillsPython, basic programming, problem-solvingData analysis, SQL, Excel, Python (optional)
Work EnvironmentProject-based, remote or freelance platformsProject-based, remote or freelance platforms
Common IndustriesTech, startups, software developmentFinance, marketing, healthcare
CertificationsNone mandatory, some may have Python coursesData analysis certifications (e.g., Google Data Analytics)

Freelance Junior Python Developers focus on coding and software tasks, while Freelance Data Analysts analyze data sets to provide insights. Both roles often operate remotely and require some technical skills, but their core responsibilities differ significantly.

What are the most commonly searched types of Junior Python Developer jobs in Massachusetts? The most popular types of Junior Python Developer jobs in Massachusetts are:
What are popular job titles related to Freelance Junior Python Developer jobs in Massachusetts? For Freelance Junior Python Developer jobs in Massachusetts, the most frequently searched job titles are:
What job categories do people searching Freelance Junior Python Developer jobs in Massachusetts look for? The top searched job categories for Freelance Junior Python Developer jobs in Massachusetts are:
What cities in Massachusetts are hiring for Freelance Junior Python Developer jobs? Cities in Massachusetts with the most Freelance Junior Python Developer job openings:
Freelance Junior Python Developer jobs near you
Infographic showing various Freelance Junior Python Developer job openings in Massachusetts as of August 2026, with employment types broken down into 1% Internship, 87% Full Time, 4% Part Time, and 8% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution.

Senior Machine Learning Engineer

Cognex Corporation

Natick, MA • On-site

$115K - $225K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 4 days ago

Job description

Job Description
About Us:
Cognex is a global leader in the exciting and growing field of machine vision. Our employees, proudly called "Cognoids," are passionate about solving the most difficult vision problems with our embedded cameras and software products featuring state-of-the-art ID, 2D and 3D vision technology. Our Work Hard, Play Hard, Move Fast culture recognizes achievement and dedication with unique rewards and celebrations.
We are looking for creative, bright, motivated Cognoids who share our passion for excellence and want to make an impact at a dynamic, global company. We celebrate our employees for their innovation, perseverance, and hard work in a fun, rewarding, and quirky environment. If you enjoy the sense of accomplishment that comes from working together to create products that solve tough problems for organizations around the world, contact us to see how you can become part of our team!
This is a hybrid role based in our Natick, MA headquarters.
The Team
You will join the Core Vision Tools team that is responsible for building state-of-the-art computer vision algorithms and deep learning models used in all Cognex's products. The team works across custom hardware, optimized embedded systems, and next-generation algorithm design to deliver high-performance solutions that run at extreme speeds and scale globally across product lines.
Job Summary
We are seeking an experienced AI/ML engineer with strong research and development skills-someone deeply familiar with designing, training, evaluating, and deploying efficient deep learning models for computer vision. You will advance Cognex's AI capabilities by developing novel architectures, optimizing models for embedded platforms, and collaborating with R&D and product teams to bring research prototypes into production.
Essential Functions
  • Research, design, and implement efficient deep learning models for industrial machine vision tasks, with a focus on algorithms with low power, low latency and data efficiency requirements

  • Collaborate with cross functional engineers to transition experimental AI models into production-ready components for embedded systems.

  • Develop high-performance Python and C/C++ code for training, optimization, benchmarking, and deployment.

  • Lead model-architecture discussions and make long-term technical decisions across platforms.

  • Optimize neural networks for resource-constrained environments (quantization, pruning, distillation, hardware-aware design).

  • Build evaluation pipelines, datasets, and tools to assess model accuracy, robustness, runtime performance, and reliability.

  • Diagnose and resolve complex issues across hardware, software, and ML components.

  • Provide technical guidance to engineers developing UIs, test frameworks, and runtime components.

  • Mentor junior engineers and champion engineering excellence in ML research and development.

Knowledge, Skills, and Abilities
Essential
  • Industry or academic experience developing and optimizing deep learning algorithms in one or more relevant technical areas - computer vision, natural language processing, speech recognition

  • Deep understanding of AI concepts including training strategies, loss functions, evaluation metrics, and ML operations.

  • Strong Python programming skills.

  • Proficient C/C++ experience for performance-critical systems.

  • Proficiency with ML frameworks (PyTorch, TensorFlow), model optimization, and ML development lifecycles.

  • Strong debugging and analytical problem-solving skills.

  • Experience with software development practices including version control, CI/CD, and issue tracking.

  • Excellent communication and collaboration skills.

Desired
  • Background in computer vision, signal processing, or related fields.

  • Experience with embedded ML, quantization, or hardware-aware optimization.

  • Hands-on experience building and deploying efficient deep learning models for real-world computer vision applications.

Minimum Education & Experience
Bachelor's or Master's degree in Computer Science, Computer/Electrical Engineering, Mathematics or related field, and 5+ years of relevant experience in AI/ML, software engineering, or applied research roles.
Cognex believes in fair and equitable pay. A reasonable estimate of the base salary range for this role is $115,000 USD - $225,000 USD. Please note that actual salaries may vary within the range, or be above or below the range, based on factors including, but not limited to, education, training, experience, professional achievement, business need, and location. In addition to base salary, employees will participate in either an annual bonus plan based on company and individual performance, or a sales incentive plan.
This position provides a comprehensive benefits package, including health, dental, and vision insurance; a 401(k) retirement plan with company matching; employer-paid disability, family leave, and life insurance; paid time off (including holidays); optional voluntary benefits; as well as recognition and wellness programs.
Additional Job Description
Equal Employment Opportunity
Cognex is an equal opportunity employer. Cognex evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic.

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