Senior Python Developer

Mantech

hackajob is collaborating with MANTECH to connect them with exceptional professionals for this role.

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the Intelligence Community, helping to protect our country from emerging threats. This position offers the chance to grow your expertise alongside talented Software Developers, Data Engineers, and System Engineers while pioneering solutions that make a national impact.

Responsibilities include, but are not limited to:

Understand requirements and design and develop software components.
Research software concepts, develop, and demo proof-of-concepts.
Collaborate with team members to understand current product features.
Develop automated unit and integration tests.
Participate in code reviews and engage in the project's agile development process.
Effectively communicate with fellow developers and occasionally with end-users.

Minimum Qualifications:

Bachelor’s degree in Computer Science or similar technical field and 10+ years of experience in software development or High School Diploma and 14+ years of experience in software development.
10+ years’ experience developing with Python
Experience in SQL and database management
Experience in front-end / full stack development
Experience with Version Control Systems such as Git
Experience with containerization tools such as Docker or Kubernetes
Knowledge of RESTful API development and integration
Understanding of Linux/Unix operating system environments

Preferred Qualifications:

Experience with Agile development methodologies, daily SCRUM, and JIRA
Experience working with Node.js
Experience with CI/CD tools such as Jenkins or GitLab CI
Knowledge of cloud services such as AWS or Azure

Clearance Requirements: Active/current TS/SCI with Polygraph is required for this position.

Physical Requirements: Must be able to remain in a stationary position 50% of the time.

Apply

Vacancy posted 10 days ago

Similar jobs that could be interesting for youBased on the Senior Python Developer in Herndon, VA vacancy

Senior Python Developer
...Senior Developer - Python / AWS Workflow Automation About the Role We are seeking a skilled and motivated Senior Developer to join our Workflow Automation team. This role is pivotal in designing, developing, and implementing a modern job scheduling and orchestration solution...
Senior
Long term contract
3 days per week
3B Staffing LLC
Herndon, VA
2 days ago
Senior Python Developer
...Python Developer Location: McLean, VA (Hybrid -Tues-Thru) Duration: 10+ Month Job Description: Must Haves: 6+ years of hands-on Python development experience using PySpark, XML, Json. Database side they need to have experience with SQL using Hive. 6+ years...
Senior
Contract work
Samprasoft
McLean, VA
4 days ago
SR. PYTHON DEVELOPER
...Job Title: SR. PYTHON DEVELOPER Location: Reston,VA Duration: 12+ Months Visa: USC, GC, H1B and EAD Contract Type: W2 Job Description: Development : Python Developer with experience in Java as a plus. Proficient...
Senior
Contract work
H1b
Btree Solutions
Reston, VA
11 hours ago
Senior Python Developer
...Senior Python Developer Looking for a proactive, detail-oriented Professional Python Developer to support enterprise-wide third-party divisional data integration initiative. Responsibilities: Work closely with Enterprise Third Party Business, MDM, and I&CM...
Senior
Compugain
McLean, VA
3 days ago
Senior Python Developer
$85 - $90 per hour
...Akkodis is seeking a Senior Python Developer for a Contract with a client in McLean, VA. The ideal candidate will be responsible for designing, building, and supporting scalable backend applications and datadriven services. Rate Range: $85/Hour to $90/Hour; The...
Senior
Hourly pay
Contract work
Temporary work
Local area
Akkodis
McLean, VA
2 days ago
Python Software Developer
...with MANTECH to connect them with exceptional professionals for this role. MANTECH seeks a driven and mission-focused Python Software Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that...
MANTECH
Herndon, VA
10 days ago
Senior Full Stack Developer (Python/Java/Angular)
$112k - $179k
...Senior Full Stack Developer (Python/Java/Angular) Job Locations US Requisition ID 2026-168013 Position Category Information Technology Clearance Public Trust Responsibilities Peraton is seeking a Full Stack Developer...
Senior
Contract work
Local area
Remote work
Shift work
2 days per week
3 days per week
Peraton
Herndon, VA
5 hours ago
Python Developer
...Job Description: Experience: Highly technical AWS Developer possessing 5+ years of IT platform implementation experience Excellent Python skills with 5+ years of experience Extensive application coding experience of OO Python based products...
3B Staffing LLC
Reston, VA
3 days ago
Senior AI/ML Software Engineer
$146k - $234k
...Senior AI/ML Software Engineer Job Locations US-NJ-Basking Ridge | US-NJ-Red... ...implement agentic AI capabilities using Python-based frameworks (LangChain, LangGraph, DeepAgents... ...intelligent, multi-step automations Develop full-stack product features (FastAPI +...
Senior
Contract work
Shift work
Peraton
Herndon, VA
3 days ago
Senior AI/ML Engineer
$135k - $216k
...Senior AI/ML Engineer Job Locations US Requisition ID 2026-164159 Position Category Scientific... ...and analysis (exploratory, predictive, statistical) using Python, R, and SQL; develop dashboards and visualizations to communicate insights....
Senior
Contract work
Shift work
Peraton
Herndon, VA
4 days ago
Senior AI/ML Engineer
...Senior AI/ML Engineer Location: Herndon, VA (Hybrid Work) Preferred: US Citizenship... ...a must Good programming knowledge in Python and relevant ML/AI frameworks (... ...document processing and data cleansing Developing and deploying scalable ML/AI models on AWS...
Senior
Remote work
Node.Digital
Herndon, VA
2 days ago
Python Developer
...Location: Herndon, Virginia Type: Contract Job #3707 Title: Python Developer Location: Herndon, VA Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government...
Contract work
Cornerstone Defense
Herndon, VA
11 hours ago
Python AWS Developer
...Python AWS Developer Location: Reston, VA (Hybrid) Duration: 12+ Months (Possible extension) Mode of Interview: 1st round Video/ 2nd round in person. Description: Call Notes: Strong Python development (writing code from scratch, not just maintenance)...
InterSources
Reston, VA
3 days ago
Senior Data Scientist
...Explore data patterns using data science tools and techniques. Translate business priorities into data science deliverables. Develop and implement scalable data products and solutions. Apply artificial intelligence and machine learning techniques to solve business...
Senior
Work experience placement
Cynet Systems
Reston, VA
3 days ago
Senior Data Engineer
...VTG is seeking a talented and experienced Senior Data Engineer to serve as an integrator... ...Your primary responsibility will be to develop, optimize, and maintain robust ETL processes... ...You will leverage your expertise in Python and SQL to condition and normalize both raw...
Senior
VTG Defense
Herndon, VA
4 days ago
Senior Data Engineer
...Global Solutions... We are looking for a Senior Data Engineer @ Reston, VA for the... ...and performance. This role will focus on developing solutions and helping transform the... ...programming language (i.e., SQL, NoSQL, Python)., Expert Knowledge and understanding...
Senior
Work experience placement
Remote work
Ageatia Global Solutions
Reston, VA
4 days ago
Senior Full-Stack AI Engineer (Python & Agentic)
Expert Technology Services in McLean, VA seeks a Developer-Full Stack Specialist to lead end-to-end software projects, including AI/LLM... ...stakeholders. The role requires 7+ years of development, strong Python, 1+ year of agentic AI/LLM work, Docker, REST APIs, SQL, AWS, and...
Senior
Expert Technology Services
Mc Lean, VA
3 days ago
Sr AWS Python Developer
...Job Details Sr AWS Python Developer JD: Key Responsibilities: Build and maintain ETL pipelines using Python and PySpark on AWS Glue and other compute platforms Orchestrate workflows with AWS Step Functions and serverless components ( Lambda ) Implement...
Senior
Cloud Analytics Technologies LLC
Reston, VA
12 days ago
Senior Lead Data Engineer: AWS, Python & Snowflake
Capital One seeks a Senior Lead Data Engineer to join its team in McLean, VA, focusing on AWS, Python, and machine learning. Candidates will lead a team to develop cloud-based solutions that enhance risk management through AI technology. The role demands a Bachelor's degree...
Senior
Capital One
Mc Lean, VA
11 hours ago
Senior Lead Data Engineer (AWS, Python, Snowflake)
$229.9k - $262.4k
Capital One National Association is seeking a Senior Lead Data Engineer in McLean, Virginia. This role involves pioneering data-driven tools, leading Agile teams, and leveraging technologies like AWS and AI for Risk management. The ideal candidate will possess strong programming...
Senior
Capital One National Association
Mc Lean, VA
4 days ago
Senior Lead Data Engineer: Python, AWS, Spark & GenAI
Capital One is looking for a Senior Lead Data Engineer in McLean, VA to spearhead data projects using Python, AWS, and Snowflake. You will collaborate with Agile teams to create innovative solutions that address real business challenges and enhance customer experiences....
Senior
Capital One
Mc Lean, VA
4 days ago
Senior BI Developer
...Tableau Developer Location: Reston, VA Duration: 12+ Months (With further ext. possibilities) Notes: Senior BI developer role Must have expertise in reporting, dashboarding... ...experience is needed here Python or R is nice to have but required for...
Senior
Samprasoft
Reston, VA
4 days ago
Senior Full-Stack AI Engineer (Angular + Python, AWS)
...firm is seeking an experienced Full Stack Engineer to design and develop cutting-edge AI Agents and Gen AI applications in McLean, VA.... ...advanced skills in Angular for front-end development, along with Python for microservices. Candidates should possess over 10 years of...
Senior
Govserviceshub
Mc Lean, VA
4 days ago
Senior Spark & Python Developer
...What we would like to see: In a senior developer role, you will design and build data flow and data integration processes to enhance loss... ...firm. Drawing from your vast hands-on experience in Python (PySpark), Spark, REST, Java, and Scala, you will develop, test...
Senior
Contract work
Mavens Guild
McLean, VA
13 days ago
Senior Principal Cyber Software Engineer (iOS)
...meaningful work that is vital to our national security, apply today! Senior Principal Cyber Engineer Cyber Offense and Defense Experts (... ...our end users in their spaces. Applicants will join a team of developers building high impact native applications for mobile devices,...
Senior
Relocation
Relocation package
Nightwing
Sterling, VA
14 days ago
Senior Lead Software Engineer, Distributed Systems (Golang + Python on Kubernetes)
$229.9k - $262.4k
...Senior Lead Software Engineer, Distributed Systems (Golang + Python on Kubernetes) Do you love building and pioneering in the technology space? Do you enjoy solving... ...of diverse technology projects and a team of developers with deep experience in distributed...
Senior
Full time
Part time
Internship
Local area
Capital One
McLean, VA
2 days ago
Senior Data Engineer
...Senior Data Engineer The Swift Group is a privately held, mission-driven and employee-focused services and solutions company headquartered... ...team. In this role, you will be responsible for designing, developing, and managing scalable data pipelines and infrastructure, with...
Senior
Navstar
Herndon, VA
3 days ago
Senior Manufacturing Test Engineer
...estimates to the NPI product manager to support scheduling of development and factory introduction activity Develop manufacturing test software within a LabVIEW/Teststand/Python environment Actively participate in the definition and evolution of the manufacturing test software...
Senior
For contractors
Worldwide
Flexible hours
VT iDirect
Herndon, VA
2 days ago
Senior Software Engineer (Python) (USA/Remote)
$98k - $167k
...based hospital quality measure data. This contract will serve to develop a human-centric reporting system that allows refinement,... ...system that directly impacts healthcare quality. You will use SAS, Python and other AWS technologies to build data processing pipelines that...
Senior
Remote job
Full time
Contract work
Work experience placement
Work at office
ICF
Reston, VA
more than 2 months ago
Senior AI Infrastructure Engineer
...Senior AI Infrastructure Engineer Austin, Texas, United States; Reston, Virginia, United... ...and Responsibilities Design, develop, deploy, and maintain production AI infrastructure... ...Strong software engineering skills using Python and one or more modern programming...
Senior
Work experience placement
Flexible hours
Seekr
Reston, VA
11 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Python Developer. Be the first to apply!