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Senior Python Flask Developer Jobs in Merrimack, NH

Socket.dev

Senior Embedded Software Engineer

Harvard, MA · On-site

$126K - $165K/yr

Improve software tooling to increase developer velocity and enable new capabilities What we're ... Proficiency with python * Proficiency with at least one real‑time control language (c++, rust ...

Nokia

Senior SW Engineer

Westford, MA · On-site

$125K - $178K/yr

Responsibilities The Network Infrastructure - IP Division group is looking for a Senior SW Engineer ... Excellent programming skills in C++ and Python is MUST * Person should have experience designing ...

Nokia

Senior SW Engineer

Westford, MA · On-site

$108K - $148K/yr

Excellent programming skills in C++ and Python is MUST * Person should have experience designing ... Senior SW Engineer. This position will be in Westford, MA. USA * Responsible for developing open ...

Socket.dev

Senior Embedded Software Engineer

Ayer, MA · On-site

$81K - $141K/yr

Position Summary Sealed Air is seeking a driven, team-oriented Senior Embedded Software Engineer to ... Experience with C / C++, C#, and Python programming. * Experience with IoT technology with a focus ...

Anduril Industries

Senior Embedded Engineer

Hudson, NH · On-site

$125K - $164K/yr

ABOUT THE JOB The AIRS team is seeking a Senior Embedded Engineer to design a new product lines. In ... Familiar with common programming languages like Python and MATLAB * Familiarity with infrared image ...

MACOM

AI/ML Development Senior Engineer

Lowell, MA · On-site

$104K - $142K/yr

They are seeking an AI/ML Development Senior Engineer to design, develop, and deploy scalable AI/ML ... Python and AI/ML frameworks (Pandas, PyTorch, TensorFlow, LangChain, etc.). • Expertise in ...

Fairygodboss

Software Engineer III (DevOps)

Lowell, MA · On-site

$52.25 - $71.75/hr

Senior Software Engineer We are looking for a Senior Software Engineer to join our dynamic team ... Deep expertise in one or more programming languages such as C#, .NET, Python, Java, or JavaScript.

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All JobsPython Flask Developer JobsSenior Python Flask Developer JobsSenior Python Flask Developer Jobs in Merrimack, NH

Senior Python Flask Developer information

See Merrimack, NH salary details

$56.3K

$145.4K

$199.7K

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

As of Sep 10, 2026, the average yearly pay for senior python flask developer in Merrimack, NH is $145,362.00, according to ZipRecruiter salary data. Most workers in this role earn between $124,400.00 and $167,400.00 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.

Senior Python Flask Developer jobs near you
Infographic showing various Senior Python Flask Developer job openings in Merrimack, NH as of August 2026, with employment types broken down into 1% Internship, 77% Full Time, 16% Part Time, 1% Temporary, and 5% Contract. Highlights an 76% Physical, 6% Hybrid, and 18% Remote job distribution, with an average salary of $145,362 per year, or $69.9 per hour.

Senior Embedded Software Engineer

Harvard, MA • On-site

Socket.dev
Network Security • 1 - 10 employees
Learn more about Socket.devexternal

$126K - $165K/yr

Other

Posted 15 days ago

Job description

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.

If that’s you and this role fits, we want to hear from you.

Join the power movement as a Senior Embedded Software Engineer

As a Senior Embedded Software Engineer, you will be responsible for the design, implementation, and verification of software and controls for advanced R&D equipment and complex machinery.

As a member of the Software Engineering team, you will be a hands‑on technical contributor. You will be a champion of writing excellent quality, production‑ready code for mission‑critical real‑time systems. You will collect functional requirements from customers and produce software solutions to meet these requirements.

You will work with a variety of engineers to integrate your software into software testbeds, hardware testbeds, and the production tools. You will also contribute to the broader software ecosystem to improve tooling and processes used across the company.

What you'll do:
  • Develop control software across multiple platforms, including real‑time Linux, microcontrollers, and FPGAs
  • Verify embedded software with Hardware-in-the-loop testbeds and field commissioning activities
  • Improve software tooling to increase developer velocity and enable new capabilities
What we’re looking for:
  • Bachelor's degree in a relevant engineering field (computer science, computer engineering, electrical engineering, industrial engineering, etc.)
  • 7+ years relevant experience
  • Professional experience with embedded, real‑time control systems
  • Professional experience with producing production quality control software
  • Experience with modern software development lifecycle practices (CI/CD, git version control, unit testing, integration testing, etc
  • Proficiency with python
  • Proficiency with at least one real‑time control language (c++, rust, etc)
Bonus points for:
  • Experience with mission or safety critical systemsExperience with large‑scale industrial systems
  • Experience with large‑scale industrial systems
  • Familiarity with real‑time Linux
  • Familiarity with bare‑metal micro controllers
  • Familiarity with FPGA development
  • Familiarity with common I/O protocols (SPI, CAN, serial, etc)
  • Familiarity with general networking (IP/UDP)
Must‑have Requirements:
  • Perform activities such as typing, standing, sitting, etc. for extended periods of time
  • Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
  • Willingness to occasionally travel or work required nights/weekends/on‑call

#LI‑Hybrid

At CFS, we excel in fast‑paced environments, driven by our values of integrity, execution, impact, and self‑critique. As we grow, we’re eager to bring on mission‑driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

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