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

Roberts Recruiting

Senior DevOps Engineer

Cambridge, MA · On-site

$142K - $182K/yr

We're looking for a Senior DevOps Engineer to implement and manage our cloud based infrastructure ... Python, bash, other scripting languages The Qualifications: * Bachelor's degree or equivalent ...

Lazard, Inc.

Senior Quantitative Developer

Boston, MA · On-site

$170K - $220K/yr

The Quantitative Equity team at Lazard Asset Management is hiring a Senior Quantitative Developer ... Expert programming skills and strong CS fundamentals (Python preferred; other languages considered)

Roberts Recruiting

Senior DevOps Engineer

Boston, MA · On-site

$141K - $181K/yr

The Senior DevOps Engineer will build scalable and highly available infrastructure to productionize ... Proficient in high-level scripting languages such as python, JS, bash, etc * Familiarity with best ...

Humana

Senior Cybersecurity Engineer

Boston, MA · Remote

$124K - $170K/yr

Hands on experience in automation (PowerShell and/or Python or a similar language, can be a ... DevOps environment * 3+ years experience in Azure monitoring * Ability to write shell scripts

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Senior Python Developer information

See Westborough, MA salary details

$56.7K

$146.3K

$200.9K

How much do senior python developer jobs pay per year?

As of Jul 8, 2026, the average yearly pay for senior python developer in Westborough, MA is $146,265.00, according to ZipRecruiter salary data. Most workers in this role earn between $125,200.00 and $168,400.00 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 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.

What are the key skills and qualifications needed to thrive as a Senior Python Developer, and why are they important?

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 are the most commonly searched types of Python Developer jobs in Westborough, MA? The most popular types of Python Developer jobs in Westborough, MA are:
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Senior Python Developer jobs near you
Senior Software Engineer - Developer Infrastructure

Senior Software Engineer - Developer Infrastructure

Klaviyo

Boston, MA

$133K - $175K/yr

Other

Re-posted 9 days ago

Job description

Why You Should Join the Developer Infrastructure Team 

Our core focus is empowering engineers to ship code efficiently and safely. We own the build systems, dependency lifecycle, and platform infrastructure that underpin every engineer's daily workflow. As a Senior Software Engineer on this team, you will help define and execute the technical roadmap for Klaviyo's backend platform - from dependency management and major framework upgrades to developer productivity tools that reduce toil and accelerate velocity. By building and maintaining the foundational systems that keep our codebase healthy and scalable, you will play a pivotal role in ensuring every engineer at Klaviyo can move fast with confidence.

What You'll Achieve: Key Responsibilities

As a Senior Software Engineer for this team, you will drive the evolution of our developer platform across the organization:

  • Dependency Management: Analyze, optimize, and secure backend and third-party dependencies across the codebase. Build frameworks for evaluating risk and ensuring our dependency graph stays healthy, performant, and maintainable.
  • Platform Upgrades and Rollouts: Lead the planning and execution of major software releases and updates - from design through production rollout - including hands-on individual contribution throughout.
  • Developer Productivity: Drive improvements across key cycle time metrics including PR CI speed, code review turnaround, and commit velocity. Relentlessly reduce toil and increase engineering efficiency across the organization.
  • Set Engineering Standards: Contribute to the standards for code quality, dependency hygiene, and platform reliability that all teams follow.
  • AI-Driven Strategy: Spearhead efforts to leverage AI within the platform lifecycle and use AI tooling to accelerate your own development work.
  • Cross-Functional Collaboration: Partner with engineers, security teams, and stakeholders to gather requirements, resolve conflicts, and roll out platform changes that teams can adopt with confidence.
  • Operational Excellence: Proactively monitor the health and reliability of the platform, diagnosing and resolving complex issues before they become critical incidents.

What Makes This Role Exciting:

  • High-Leverage Work: You are not just building features; you are building the systems that determine how fast every engineer at Klaviyo can ship.
  • Real Architectural Impact: You will influence the structure of a large, complex backend codebase and make decisions that scale with the company.
  • Innovation at the Edge: You will have the autonomy to experiment with AI and emerging tooling to solve hard problems in dependency management, build performance, and developer experience.

Who You Are:

  • Experienced Engineer: You have 5+ years of software engineering experience with strong computer science fundamentals and a focus on clean, maintainable, well-architected code.
  • Analytical Problem Solver: You don't just fix symptoms - you hunt down root causes, implement systemic fixes, and build in safeguards to prevent recurrence.
  • Platform-Minded: You are comfortable reasoning about distributed systems, dependency graphs, and the downstream impact of platform-level decisions across many teams.
  • Technical Generalist: You can move across the stack when needed - whether debugging a Python integration, optimizing a Go service, or wiring up infrastructure automation.
  • AI Enthusiast: You have already experimented with AI in your work or personal projects and are eager to find ways to use it to make your work smarter and more efficient.
  • Extreme Ownership: You take pride in the end-to-end health of the platform and proactively advocate for engineering excellence.

Technologies we use (not exhaustive):

  • Backend: Python, Django, FastAPI, Go
  • Frontend: React, TypeScript
  • Infrastructure and CI: AWS, Kubernetes, Terraform, Helm, Buildkite, Pants
  • Data: MySQL, PostgreSQL, Redis, Kafka
  • AI Tools: Claude, Cursor, Copilot, or internal AI enablement frameworks


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