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

Geode Capital Management

Senior Data Engineer

Boston, MA · On-site

$150 - $200/hr

The Senior Data Engineer will report to the Director of Data Engineering and will design and build ... Strong Python programming skills focused on data engineering and pipeline development. * Expertise ...

Geode Capital Management

Senior Data Engineer

Boston, MA · Hybrid

$165K - $185K/yr

The Senior Data Engineer will report to the Director of Data Engineering. This role will play a ... Strong Python programming skills with a focus on data engineering and data pipeline development

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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 Sep 9, 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.

DevSecOps Engineer - Python/Jenkins/Terraform - Boston, Ma

Boston, MA • On-site

Motion Recruitment Partners, LLC
Recruiting and Staffing Services • 1 - 5K employees
Learn more about Motion Recruitment Partners, LLCexternal

$80 - $110/hr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 7 days ago

Job description

Job Description An established organization in a highly regulated industry is seeking a Senior Platform & Security Engineer to join its Platform Engineering team on a contract basis. This individual will play a key role in designing, implementing, and supporting secure cloud infrastructure while helping ensure continuity across critical platform initiatives.
The ideal candidate is a highly independent engineer with deep AWS and Infrastructure as Code expertise, strong Kubernetes and containerization experience, and a passion for technology. This person should be comfortable taking ownership of complex technical problems, driving solutions with minimal supervision, and leveraging modern AI-assisted development tools while maintaining rigorous security and quality standards.
If you're the type of technologist who continuously learns, automates everything possible, and enjoys building secure, scalable platforms, this opportunity offers a chance to make an immediate impact. Required Skills & Experience
  • 10+ years of experience in Platform Engineering, DevOps, SRE, Cloud Engineering, Systems Engineering, or a related field
  • Extensive hands-on experience supporting enterprise production workloads in AWS
  • Advanced expertise with Terraform and/or OpenTofu
  • Strong Infrastructure as Code (IaC) experience
  • Deep Kubernetes deployment, administration, support, and troubleshooting skills
  • Experience with Docker and/or Podman container technologies
  • Strong Python and Bash scripting skills
  • Experience building and maintaining CI/CD pipelines using GitHub and Jenkins
  • Hands-on experience with Ansible and Packer
  • Strong understanding of Linux systems administration
  • Experience implementing security controls including:
    • System hardening
    • Vulnerability management
    • Secrets management
    • Least-privilege access models
    • Logging and monitoring
    • Secure-by-default infrastructure patterns
  • Experience creating, testing, reviewing, and maintaining production-quality infrastructure code
  • Experience developing automated testing for infrastructure platforms and deployments
  • Strong communication, documentation, troubleshooting, and problem-solving skills
  • Ability to work independently and take ownership from requirements through production deployment
  • Experience using AI-assisted development tools such as GitHub Copilot, Claude Code, Codex, or similar technologies
  • Ability to validate AI-generated solutions through testing, code review, security controls, and quality gates
Desired Skills & Experience
  • Experience within financial services or other highly regulated industries
  • Experience with SOC 2, ISO 27001, NIST 800-53, or similar compliance frameworks
  • Experience with Terraform testing frameworks such as Terratest
  • Experience with Container Structure Test, Pester, or similar validation tooling
  • Experience with observability tools including Prometheus, Grafana, Loki, ELK/OpenSearch, or Datadog
  • Experience with AWS services such as IAM, VPC, ECS, EKS, Lambda, and RDS
  • Experience with SQL and NoSQL databases
  • Open-source contributions, personal GitHub repositories, or side projects demonstrating technical passion
  • Experience integrating AI-powered tooling into established engineering workflows
  • Strong interest in emerging technologies and continuous professional development
What You Will Be Doing Daily Responsibilities
  • 100% Hands On
  • Design, implement, and maintain secure, scalable AWS infrastructure using Terraform/OpenTofu
  • Build and support cloud platform services across networking, identity, compute, storage, and Kubernetes environments
  • Create and enhance automation tools and platform utilities using Python and Bash
  • Develop and maintain CI/CD pipelines with GitHub and Jenkins
  • Build and execute automated Infrastructure as Code testing and validation processes
  • Implement container security best practices across Kubernetes, Docker, and Podman environments
  • Configure cloud-native services including logging, monitoring, security scanning, and secrets management
  • Participate in code reviews, architecture discussions, troubleshooting, and engineering standards development
  • Partner with security, risk, and governance teams to support compliance and audit requirements
  • Monitor system reliability, security posture, and platform performance
  • Produce technical documentation, operational runbooks, and implementation guides
  • Independently drive engineering work from requirements gathering through deployment and handoff
  • Leverage AI-assisted development tools to improve productivity while maintaining strong security and testing standards
  • Support ongoing platform modernization and cloud engineering initiatives
The Offer
  • Contract opportunity
  • Competitive hourly compensation
  • $80/hr - $110/hr depending on experience and alignment to role requirements
  • Opportunity to work on enterprise-scale cloud infrastructure and security initiatives
  • Exposure to modern platform engineering, automation, Kubernetes, and AI-assisted development practices
  • Collaborative engineering culture focused on continuous learning and technical excellence
You will receive the following benefits
  • Medical Insurance
  • Dental Benefits
  • Vision Benefits
  • Paid Time Off (PTO)
  • 401(k)
Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

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