
Sr. Python Developer TS/SCI with Poly REQUIRED
CGI Technologies and Solutions, Inc.
Arlington, VA · HybridJob$92–199K/yrSeen todaySeen in employer's feed today
Most applications go out cold — see where you stand first. No sign-up to start.
You apply on the employer's site, with no Olive account needed.
Watch jobs like this. New roles like this one near Arlington, VA, by email.
Don't just apply. Show up ready.
Olive works from this exact posting.
At a glance
Olive lists jobs from US employers, including remote roles you can work from the United States.
Requirements
Credentials this posting asks for.
Job overview
CGI Federal seeks a Senior API/Python Developer in its Intel sector to build and maintain software applications and APIs supporting national security missions. The role focuses on backend development, API integration, and potentially cloud-based solutions. The developer works with cross-functional teams on secure, scalable capabilities. The position is based in the Arlington office with a hybrid working model acceptable.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Sr. Python Developer TS/SCI with Poly REQUIRED
Position Description
CGI Federal has an exciting opportunity for a Senior API/Python Developer within our Intel sector advancing the national security mission through cutting edge technology. You must demonstrate a passion for keeping pace with rapidly evolving technology advancements and leveraging your expert level Python skills within a highly collaborative team to deliver state of the art capabilities.
The Senior API/Python Developer is responsible for the design, development, and maintenance of software applications and APIs using Python programming language. This role focuses on backend development, API integration, and may include aspects of advanced cloud based solutions.
Collaborates with system engineers and developers to ensure information security
CGI Federal is growing its high performance team whose members share a passion for building high quality, scalable, advanced IT solutions in a collaborative, fast paced, outcome driven mission.
This position is located in our Arlington, VA office; however, a hybrid working model is acceptable.
Your future duties and responsibilities
. Software Development: Design, develop, test, and deploy robust and scalable applications and APIs using Python. This includes writing clean, efficient, and well documented code that meets advanced mission requirements.
. API Design and Integration: Design and implement secure RESTful APIs and microservices, ensuring efficient communication between mission critical systems and applications. Integrate third party APIs and specialized services as required.
. Database Management: Work with various database systems (e.g., SQL and NoSQL databases like PostgreSQL, MongoDB, MySQL) for sophisticated data storage, retrieval, and analysis.
. Collaboration: Collaborate with cross functional teams, including frontend developers, product managers, and QA teams, to define requirements, integrate components, and ensure seamless, secure functionality.
. Performance Optimization and Security: Optimize code and system performance, troubleshoot complex issues, and enforce security best practices in data handling and API authentication for sensitive environments.
. Cloud Integration (Optional): If applicable, implement and integrate cloud services and APIs (e.g., AWS, Azure) for cloud native solutions and deployments.
. Maintenance and Support: Provide ongoing support, maintenance, and enhancements for existing applications and APIs.
Required qualifications to be successful in this role
. Education and/or Experience: Bachelor's degree and/or 8 to 10 years of relevant experience
. Security Clearance: TS/SCI with CI Poly
. Expert level proficiency in Python programming language and associated frameworks (e.g., Flask, Django).
. Strong understanding of API architectural styles (e.g., REST, GraphQL, SOAP) and experience with API development tools (e.g., Postman, Swagger UI).
. Familiarity with database systems (SQL and/or NoSQL).
. Experience with version control systems like Git.
. Knowledge of software development methodologies (e.g., Agile, Scrum).
. Advanced problem solving skills and the ability to work independently and collaboratively.
. Experience with cloud platforms (e.g., AWS, Azure, GCP).
. In depth experience with containerization technologies (e.g., Docker, Kubernetes).
CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $91,800.00 $198,800.00.
CGI Federal's benefits are offered to eligible professionals on their first day of employment to include:
. Competitive compensation
. Comprehensive insurance options
. Matching contributions through the 401(k) plan and the share purchase plan
. Paid time off for vacation, holidays, and sick time
. Paid parental leave
. Learning opportunities and tuition assistance
. Wellness and Well being programs
#CGIFederalJob
#LI LB1
#ClearanceJobs
Together, as owners, let’s turn meaningful insights into action.
Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.
Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
Come join our team—one of the largest IT and business consulting services firms in the world.
Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.
CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at [email protected] . You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.
We make it easy to translate military experience and skills! Click here (https://cgi-veterans.jobs/) to be directed to our site that is dedicated to veterans and transitioning service members.
All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.
CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGI’s legal duty to furnish information.
CGI is an Equal Opportunity Employer, to include disability and protected veteran status; we are committed to compliance with U.S. laws and regulations.
How this job compares
Set against the 39,673 open Software Engineer jobs on Olive Jobs, counted November 11, 2026.
- Pay
- This posting$92–199K/yr
- Virginia median$125–201K/yr1,627 salary ranges
- US median$133–217K/yr31,689 salary ranges
This range's midpoint, $145K, is 12% below the Virginia median midpoint ($166K) — in the middle half of Software Engineer salary ranges in Virginia.
- Openings
- Olive Jobs lists 1,914 open Software Engineer jobs in Virginia and 39,673 across the US. 8% of them nationwide are listed as remote or flexible.
- Hiring the most in Virginia
- Capital One200 open
- Amazon138 open
- Deloitte101 open
- Experience
- This posting asks for at least 8 years of experience — more than three in four Software Engineer postings that state a minimum ask for (median 5 years, across 32,700 postings).
- Education
- 12,375 of the 39,673 open Software Engineer jobs (31%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 11, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
Prepare for this role
You've read the whole posting — now see how you match it.




