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Senior Python Software Engineer Jobs in Washington

VTG

Senior Software Engineer

Fort George G Meade, MD · On-site

$170K - $210K/yr

This role requires hands-on experience with Python, JavaScript, Bash scripting, and Grafana, along with a strong understanding of modern software engineering and system design principles. What will ...

NimbusAITech LLC

Python Developer

Mclean, VA · On-site

$51.50 - $71/hr

Python Software Developer (Financial Accounting & Forecasting Applications) Client: Freddie Mac (Investments & Capital Markets Division) Location: McLean, VA (Local candidates only -- within a 40 ...

New

BTree Solutions, Inc.

SR. PYTHON DEVELOPER

Reston, VA · On-site

$126K - $170K/yr

Job Title: SR. PYTHON DEVELOPER Location: Reston,VA Duration: 12+ Months Visa: USC, GC, H1B and EAD Contract Type: W2 Development : * Python Developer with experience in Java as a plus. * Proficient ...

eSolutionsFirst

Python Full Stack Developer

Mclean, VA · On-site

$130 - $190/hr

Position Overview seeking a Sr. Software Developer who can contribute to the firm's enterprise ... At least 5 years' of hands-on Python software development experience with Bachelor's degree or 3 ...

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Senior Python Software Engineer information

See Washington salary details

$62.3K

$160.8K

$220.9K

How much do senior python software engineer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for senior python software engineer in Washington is $160,801.00, according to ZipRecruiter salary data. Most workers in this role earn between $137,600.00 and $185,200.00 per year, depending on experience, location, and employer.

What does a senior Python software engineer do?

A Senior Python Software Engineer designs, develops, tests, and maintains complex software applications using the Python programming language. They often lead or mentor junior developers, architect software solutions, and ensure best coding practices are followed. These professionals collaborate with cross-functional teams to deliver scalable and efficient systems, troubleshoot issues, and optimize application performance. Their expertise includes advanced knowledge of Python frameworks, libraries, and development tools, as well as experience with databases, APIs, and cloud services.

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

To thrive as a Senior Python Software Engineer, you need advanced proficiency in Python programming, strong problem-solving abilities, and a solid background in computer science or a related field. Familiarity with frameworks like Django or Flask, experience with version control systems such as Git, and knowledge of cloud platforms and CI/CD tools are typically required. Leadership, effective communication, and mentorship skills help you collaborate with teams and guide junior developers. These skills ensure the delivery of robust, scalable software solutions and foster a productive, innovative development environment.

What are some common challenges faced by senior Python software engineers when leading complex projects, and how can they be addressed?

Senior Python Software Engineers often face challenges such as balancing hands-on coding with mentoring junior team members, managing technical debt, and designing scalable solutions. Successfully addressing these challenges involves clear communication, proactive code reviews, and effective prioritization of tasks. Collaborating closely with cross-functional teams and fostering a culture of knowledge sharing can also help ensure project success and team growth.

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

AspectSenior Python Software EngineerPython Developer
Required CredentialsBachelor's degree in CS or related field, experience in software engineeringBachelor's degree in CS or related field, coding proficiency
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing applications, debugging
Employer & Industry UsageTech companies, startups, enterprise softwareWeb development, data analysis, automation projects
Common Search & Comparison IntentUnderstanding senior-level roles, responsibilities, and skillsEntry to mid-level coding roles, project involvement

The main difference between a Senior Python Software Engineer and a Python Developer lies in experience, responsibilities, and scope. Senior engineers typically lead projects, design system architecture, and mentor junior staff, while Python Developers focus on coding, application development, and implementation. Both roles require strong Python skills and relevant credentials, but senior roles demand more experience and leadership capabilities.

Which senior Python software engineer job is in demand?

Senior Python software engineering roles are in high demand across industries such as technology, finance, and healthcare, especially for positions involving data analysis, machine learning, and web development. Skills in frameworks like Django or Flask, along with experience in cloud platforms and version control, enhance job prospects in this field.

What are popular job titles related to Senior Python Software Engineer jobs in Washington?

For Senior Python Software Engineer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Senior Python Software Engineer jobs in Washington look for?

The top searched job categories for Senior Python Software Engineer jobs in Washington are:

What cities in Washington are hiring for Senior Python Software Engineer jobs?

Cities in Washington with the most Senior Python Software Engineer job openings:

Senior Python Software Engineer jobs near you
Infographic showing various Senior Python Software Engineer job openings in Washington as of August 2026, with employment types broken down into 92% Full Time, 6% Part Time, and 2% Contract. Highlights an 79% Physical, 2% Hybrid, and 19% Remote job distribution, with an average salary of $160,801 per year, or $77.3 per hour.

Backend Python Software Engineer

SW Complete

Annapolis, MD • On-site

Full-time

Medical, Retirement, PTO

Re-posted 20 days ago

Key responsibilities

  • Develop, test, deploy, and maintain Python-based ReST endpoints, microservices, and data model management capabilities using Django and Flask frameworks.

  • Debug existing software, correct defects, and modify software to add features or improve performance.

  • Integrate existing software into new or modified systems and develop data queries for databases or data repositories.

Job description

Synergy is looking for a Backend Python Software Engineer to develop, test, deploy, and sustain various Python based ReST end points, microservices, and data model management capabilities utilizing Django and Flask frameworks to interact with data models such as MariaDB, MongoDB, and PostgreSQL and send data upon request, in JSON format, to UI front ends. Essential duties and responsibilities include:
  • Provide middleware and backend support to all system applications.
  • Debug existing software and correct defects.
  • Provide recommendations for improving documentation and software development process standards.
  • Design and code new software or modify existing software to add new features.
  • Integrate existing software into new or modified systems or operating environments.
  • Develop simple data queries for existing or proposed databases or data repositories.
  • Write or review software and system documentation.
  • Develop or implement algorithms to meet or exceed system performance and functional standards.
  • Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem areas.
  • Modify existing software to correct errors to improve its performance.

Requirements
A bachelor's degree in computer science or related discipline from an accredited college or university is required and four (4) years of experience as a SWE on projects and program of similar scope and complexity. In lieu of a degree, seven (7) years of experience as a SWE in programs and contracts of similar scope, type and complexity is required.
Required Capabilities:
  • Python
  • PIG
  • Py-Spark
  • Django or Flask
  • MongoDB or MariaDB
  • Micro service model

Desired Qualifications:
  • NiFi
  • PressureWave
  • Swagger
  • AWS,C2S or other cloud experience
  • Docker
  • Visual Studio Code or similar IDEs
  • JSON and/or XML serialization
  • Jira
  • Confluence
  • Git version control
  • Agile

CLEARANCE REQUIRED
The qualified individual must be fully cleared in current access with the appropriate MPO client polygraph
Benefits
  • Compensation : We offer highly competitive compensation so everyone can share in the growth of the company as we build its success together!
  • Health & Retirement : We offer a comprehensive Health Benefits package and 401K Retirement plan so you can take care of yourself and your family, now and in the future. Other health-related benefits include an employee Gym wellness benefit.
  • Education : Individual growth is a priority at Synergy. Employees are encouraged to take advantage of our company-sponsored continuing education program so they can get their degree or that next certification needed to propel them towards the next level.
  • Work/Life Balance : A healthy work/life balance is essential for building and executing your work effectively at Synergy, but it's also necessary to allow you the room to pursue everything you want to develop in your personal life. We offer a generous Paid Time Off benefit and 11 paid holidays a year. Synergy also provides flexible work options that work with your schedule and lifestyle.
  • Great Corporate Facilities : Come by our corporate office and enjoy a weekly happy hour, take a drive to nearby restaurants, grab a snack or coffee in our café, or utilize our collaborative office space and conference rooms.

About Us
Formed in July of 2007 and headquartered in Columbia, MD, our talented, dedicated staff provide a broad range of services in cybersecurity, software, data transport solutions, systems engineering, and IT services to the U.S. Intelligence and Defense Communities. We deliver critical and innovative capabilities to high-level decision makers that enhance our nation's security.
In an ultra-competitive environment, Synergy ECP has thrived by adhering to our name, making sure excellence is displayed by our E mployees, to our C ustomers and by continually improving P erformance (ECP). This is what sets us apart and enables us to be an autonomous yet agile business delivering huge results and meeting our customers' evolving demands. Synergy ECP has earned a client list that includes numerous Fortune 100 companies, in addition to multiple branches of the US government and military services.
Synergy ECP is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected class.
If you are interested in learning more about Synergy and what opportunities may be available to you, let's start a conversation together! Our team is happy to speak with you about your experience and goals so that they may work with you in finding the kinds of positions that you are most interested in. Feel free to drop off your resume with us via our website or send it along to staffing@synergyecp.com . Apply today and start your new career at Synergy!

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