Senior Python Developer
eSolutionsFirst
Senior Python Developer We are seeking a Senior Python Developer to support the development of mission-critical applications built on modern software development frameworks. The selected candidate will collaborate with engineering teams to design, develop, enhance, and maintain both customer-facing and internal applications/services. The role involves working across the full software development lifecycle, including server operations, backend development, testing, verification, and maintenance. The developer will contribute to: Building new features and enhancements Code refactoring and optimization Defect fixes and technical debt remediation Application modernization and migration efforts Performance improvements and scalability initiatives Must-Have Qualifications 10+ years of backend development experience using Python , including large data libraries Strong understanding of Object-Oriented Programming (OOP) Experience working with large-scale databases Master's degree in Computer Science (preferred) Preferred Skills (Nice to Have) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with RESTful APIs and microservices architecture Experience with data processing frameworks (e.g., Pandas, NumPy, PySpark) Understanding of CI/CD pipelines and DevOps practices Strong problem-solving and analytical skills Work Schedule Standard business hours Full-time, on-site in McLean, VA (MondayFriday)
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior Python Developer in Reston, VA vacancy
- ...Senior Developer Role In a senior developer role, you will design and build data flow and data integration processes to enhance loss prevention... ...firm. Drawing from your vast hands-on experience in Python (PySpark), Spark, REST, Java, and Scala, you will develop, test...Senior
Mavens Guild
Reston, VA2 days ago - ...Senior Python Developer ******ONSITE 3 DAYS PER WEEK IN MCLEAN, VA REQUIRED***** Position Overview: Freddie Macs Financial Engineering team is seeking Python Developers for a large strategic financial project. The position is focused on python development of components...Senior3 days per week
Software Technology Inc
Reston, VA23 hours ago $131.3k - $237.35k
...customers. This role sits at the intersection of helping end users, developing new features, and coordinating with technical partners to... ...-Intelligence Polygraph clearanceFour years of experience in a Python Development roleBachelor’s degree in computer science, Software...SeniorFull time- ...motivated candidate to join our talented Team. Job Title: Senior Data Engineer / AI ML Engineer with Python, AI/ML & LLMs. Location: Reston, VA ( Hybrid )... ...with data scientists, ML engineers, and software developers to design and implement robust data infrastructure that...Senior
$120.7k - $188.73k
ResponsibilitiesNoblis is seeking a cleared Cyber Capability Developer III - Digital Forensics to support our Law and Enforcement customer... ...will function as a full-stack engineer building and extending Python-based front-end and back-end capabilities that process diverse...SeniorFull timeContract workPart timeLocal areaRemote work$130k - $196k
...into the demanding fields of data science and machine learning? Are you proficient in Python, and full life cycle software development?Freddie Mac is currently seeking a senior developer to join the Credit Innovation and Analytics team in the Single-Family division.This...SeniorLocal area$97.3k - $156.7k
Senior Python Developer with Spark Position Description CGI is seeking a Senior Python Developer with Spark skills to design, build, and optimize large scale data processing systems in a cloud native AWS environment. This role focuses heavily on developing high performance...SeniorLocal area- ...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 support the Intelligence Community, helping to protect our country from emerging...
MANTECH
Herndon, VA-40 - ...Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team.Job Title: Sr. Python Developer Job Location: Mclean, VAJob Description: The candidate will mainly be involved in design, development, and documentation...Senior
$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...SeniorContract workLocal areaRemote workShift work2 days per week3 days per weekPeraton
Reston, VA23 hours ago- ...time) from across the company to pursue an opportunity. Helps to develop capture strategies, analyze market trends that affect a pursuit... ...Manages the entire schedule and presents at key milestones to senior leadership, prepares interim reviews and work products, and...SeniorFull timePart timeInterim role
- ...individual with deep technical knowledge and strong analytical skills in Identity and Access Management (IAM) to join our team as a Senior Principal Information Engineer. This is a full-time remote role with minimal travel requirements.This Senior Principal Information...SeniorFull timeFor contractorsRemote work
- ...coordinate bug fixes to uphold the software quality standards Develop user training programs, documentation, and support frameworks to... ...integration.Required Skill and Experience Development experience in Python and modern web technologies with Software Development...Full timeTemporary workRelocation
$161.8k - $184.6k
Senior Software Engineer - Full Stack (Python + Spark) Do you love building and pioneering in the technology space? Do you enjoy solving complex... ...Collaborate with and across Agile teams to design, develop, test, implement, and support technical solutions in full...SeniorFull timePart timeInternshipH1bLocal areaCapital One Financial Corporation
McLean, VA23 hours ago- ...Description Senior AI/ML Engineer Location: Herndon, VA (Hybrid Work) Preferred... ...must Good programming knowledge in Python and relevant ML/AI frameworks (TensorFlow... ...processing and data cleansing Developing and deploying scalable ML/AI models on...SeniorFull timeRemote work
Node Digital
Herndon, VA23 hours ago - ...Only On W2 Python Developer McLean VA- 1 hour in person interview required. 6 month initial duration Job Description: Design and implement Web-based application using Python. Develop specifications and designs for complex applications or modifying/maintaining complex...
Syntricate Technologies
Reston, VA2 days ago $200k - $240k
...captures and proposals in response to government RFPs, RFIs, and Sources Sought notices in support of IC and DoW programs Author and develop technical volumes, white papers, and solution narratives from concept to completion with minimal direction Analyze and decompose...SeniorCareerArc
Reston, VA4 days ago- ...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. Realizing early on that our most prized assets are our employees, we continually focus...
Cornerstone Defense
Reston, VA2 days ago $104k - $166k
...structured, operational, program, or business datasets to support decision-makingProficiency with Python, R, SQL, or similar analytical tools, with the ability to develop notebooks, scripts, queries, and reusable analysis artifactsExperience with exploratory data analysis...SeniorContract workShift work- ...Software Developer/Python Developer Client: Freddie Mac Location: McLean, VA (Onsite, local try preferred, relocation acceptable nearby) Duration: 6+ months (with possible extension) Must Have Qualifications: 5+ years' experience of software development using Python Hands...Local areaRelocation
InterSources
Reston, VA3 days ago - ...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
- Celestar Corporation is seeking a Senior Data Scientist (OBI Advanced Analytic Method Augmentation... ...data science languages, such as Rand Python; managing and merging of disparate data... ...predictive analytics.· Designs, develops, and evaluates leading-edge algorithmic intelligence...SeniorContract workWork at officeLocal area
- Celestar Corporation is seeking a Senior Data Scientist (OBI Analytic Efficiency Enablement... ...data science languages, such as R and Python; managing and merging of disparate data sources... ...at any experience level).· Designs, develops, and evaluates leading-edge algorithmic intelligence...SeniorContract workWork at officeLocal area
- ...to join our talented Team. Job Title: Senior Data Engineer Location(s): Reston, VA... ...0%)Mentor team members by designing and developing training materials to communicate the current... ...into RedshiftExperience with Python required; React and Node.js nice to haveExperience...Senior
- ....comContact Phone: (***) ***-****Company: MindlancePosition Title: Senior Data Engineer Location: Remote Duration: Contract to hire Profile... ...with AWS data services (Redshift, Glue, DMS)Proficiency in Python for test automation and validationExperience with Airflow and orchestration...SeniorFull timeContract workTemporary workRemote work
$165k - $180k
...control, CI/CD for data pipelines, automated testing, and model deployment strategies. Utilize and integrate open‑source tools such as Python, PySpark, and Apache Airflow for distributed data processing and workflow orchestration. Implement GenAI‑enhanced workflows using...SeniorWork experience placementH1bLocal areaKarsun Solutions
Herndon, VA1 day ago$112k - $179k
ResponsibilitiesOverviewPeraton is seeking a Senior AI Engineer to to design and build production-grade AI systems and lead the next evolution... ..., and modern SDLC frameworksStrong program skills in in Python and at least one additional language (Java, JavaScript, Go, etc....SeniorContract workRemote workShift work- ...coordinate bug fixes to uphold the software quality standards Develop user training programs, documentation, and support frameworks to... ...proficiency in Java, springboot and microservices. Experience in Python, Gitlab, Terraform.Preferred Skill and Experience Experience...Full timeTemporary workRelocation
- ...highly motivated and self‑directed professional to fill the role of Senior Data Engineer . The candidate will be a member of a software... ...Experience building data products in Apache Avro and/or Parquet Python AWS Experience with REST APIs Desired Skills Iceberg Presto/Trino...Senior
Dark Wolf
Herndon, VA1 day ago $86.4k - $176.2k
...operating systems including embedded systems. Ideal candidates will have strong experience in cyber tool testing, in-depth knowledge of Python, and a background in network threat hunting. This role requires an active TS/SCI security clearance. The position offers a...SeniorAccenture Federal Services
Herndon, VA4 days ago
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Python Developer. Be the first to apply!
Related searches
- senior python developer Reston, VA
- python programmer Reston, VA
- python developer Reston, VA
- python developer data analytics Reston, VA
- python engineer Reston, VA
- full stack / python developer (remote) Reston, VA
- senior business analyst Reston, VA
- senior manager tax Reston, VA
- senior devops Reston, VA
- senior content designer Reston, VA