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Freelance Python Api Developer Jobs in Virginia (NOW HIRING)

WorkNova LLC

Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Python Developer with AWS Reston, VA, 3 days onsite in a week Need to go for F2F interview ... Experience implementing API versioning, request validation, and structured error handling

Cymertek

Java, Scala, Python Developer

Chantilly, VA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... API Developer, etc. DEGREE (Level Desired) Bachelor's Degree DEGREE (Focus) Computer Science ... Strong Python scripting skills * Familiarity with object-oriented and functional programming ...

Cymertek

Java, Scala, Python Developer

Tysons, VA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... API Developer, etc. DEGREE (Level Desired) Bachelor's Degree DEGREE (Focus) Computer Science ... Strong Python scripting skills * Familiarity with object-oriented and functional programming ...

Cymertek

Java, Scala, Python Developer

Reston, VA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... API Developer, etc. DEGREE (Level Desired) Bachelor's Degree DEGREE (Focus) Computer Science ... Strong Python scripting skills * Familiarity with object-oriented and functional programming ...

Arka Infotech Inc

Java Developer

Mclean, VA · On-site

$51.50 - $66.75/hr

Java Restful API Developer Location: Mclean, VA Length: 2 years Accepting relo candidates?: YES ... Python, etc.) -Familiarity with SQL and at least one relational database management system ...

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123K - $166K/yr

Strong Proficiency in Python programming language, including experience with frameworks such as Flask, Django, and Fast API. * Experience with RESTful APIs and microservices architecture, and an ...

Sidram Technologies

Python Developer

Mclean, VA · On-site

$50.75 - $70/hr

Python Developer Must Have Skills: · Python development (backend) · AWS Lambda, API Gateway / ALB · DynamoDB & Aurora (RDS) · Strong software engineering fundamental · Unit testing + Integration ...

BTree Solutions, Inc.

PYTHON DEVELOPER

Reston, VA · On-site

$52.25 - $72/hr

PYTHON DEVELOPER Location: Richmond, VA Duration: 12+ Months Visa: USC, GC, H1B and EAD Contract ... Rewrite existing API in Java or write new from scratch? Both, wants a good mix * Data engineering ...

WorkNovas LLC

Python Developer

Mclean, VA · On-site

$50.75 - $70/hr

Must have experience working with popular Python frameworks, such as Django, FAST API, and python libraries. Interview Information: In-person required . - Modeler Developer Python - The position ...

Cornerstone Defense

Python Developer

Chantilly, VA · On-site

$51.50 - $71/hr

Job #3456 Python Developer: w orks as part of a team to implement functionality as part of multiple ... Experience with API development in Python using Python libraries such as FastAPI * Experience with ...

Sidram Technologies

Python Developer - w2

Mclean, VA · On-site

$50.75 - $70/hr

Python development (backend) * AWS Lambda, API Gateway / ALB * DynamoDB & Aurora (RDS) * Strong software engineering fundamental * Unit testing + Integration testing * Data migration & schema ...

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Freelance Python Api Developer information

What is the difference between Freelance Python Api Developer vs Freelance Web Developer?

AspectFreelance Python Api DeveloperFreelance Web Developer
Required SkillsPython, API development, RESTful servicesHTML, CSS, JavaScript, front-end/back-end frameworks
Work EnvironmentRemote, project-based, client-specificRemote or on-site, diverse projects
Industry UsageTech, SaaS, data integrationMedia, e-commerce, corporate websites
Common Search IntentAPI development, backend servicesWebsite creation, UI/UX design

Freelance Python Api Developers focus on creating and maintaining APIs using Python, often working on backend services and data integration. Freelance Web Developers build and design websites using HTML, CSS, and JavaScript. While both roles are freelance and tech-oriented, their core skills and project types differ significantly, making this comparison useful for clients seeking specific development expertise.

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The most popular types of Python Api Developer jobs in Virginia are:

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For Freelance Python Api Developer jobs in Virginia, the most frequently searched job titles are:

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Freelance Python Api Developer jobs near you

API Developer/Data Engineer Managing Consultant-Fraud/AI

Guidehouse

Mclean, VA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 5 days ago

Guidehouse rating

7.7

Company rating: 7.7 out of 10

Based on 27 frontline employees who took The Breakroom Quiz

42nd of 72 rated business consultants

Job description

Job Family:
Technology Consulting
Travel Required:
Up to 50%
Clearance Required:
Ability to Obtain Public Trust
What You Will Do:
The API Developer/Data Engineering Managing (Lead) Consultant serves as a trusted advisor and delivery lead for AI and Data engagements. This role owns solution strategy, oversees delivery teams, develops technical solutions, and partners with clients to drive measurable business outcomes.
Key Responsibilities
  • Lead the design, development, and deployment of data integration and API solutions within related data platforms.
  • Architect and implement end-to-end data pipelines, including ingestion, transformation, validation, and delivery of structured and unstructured data.
  • Develop and maintain ontology models, data schemas, and relationships to support analytics, search, and operational use cases.
  • Integrate data across multiple systems and platforms (e.g., cloud storage, APIs, analytics environments) using scalable and secure patterns.
  • Collaborate with cross-functional teams (data engineering, analytics, product, and security) to ensure seamless system interoperability and data consistency.
  • Implement data validation, quality assurance, and governance processes (e.g., completeness checks, schema validation, metadata integrity).
  • Support development of AI-enabled capabilities (e.g., semantic search, entity resolution, analytics) by enabling high-quality, well-structured data pipelines.
  • Operate within an Agile delivery model, contributing to sprint planning, backlog refinement, user story development, and iterative delivery of technical solutions.
  • Translate business and mission needs into technical requirements and scalable integration designs.
  • Ensure compliance with security, privacy, and audit requirements, including role-based access controls, logging, and data protection standards.
  • Drive technical design decisions, mentor junior engineers, and act as a technical lead within a matrixed team environment.

What You Will Need:
  • Bachelor's degree in Computer Science, Engineering, Information Systems, or related field (or equivalent experience).
  • Based on our contractual obligations, candidate must be located within the United States and a US Citizen.
  • Must be able to OBTAIN and MAINTAIN a Federal or DoD "PUBLIC TRUST" clearance.
  • 5+ years of experience in data engineering, system integration, or platform engineering roles.
  • Proficiency in Python, Java/JS, .NET (C#), RESTful API, XML, and strong SQL skills (including SQL Server) with experience integrating APIs with enterprise applications, databases, and third-party systems.
  • Proficiency in Java/JS, .NET (C#), RESTful API, XML for data transformation, querying, and API development.
  • Proficiency working with various data structure formats (CSV/TXT, JSON, XML, Parquet, etc.).
  • Strong hands-on experience with API development and integration, including:
    - Building and managing data pipelines
    - Ontology/data model development and relationship mapping
    - Integration of data across multiple systems
  • Experience working within cloud platforms (particularly GCP) for scalable data transformation, enrichment, and analytics workflows.
  • Strong understanding of data modeling, schema alignment, and metadata management across integrated systems.
  • Experience implementing data quality, validation, and governance controls.
  • Familiarity with cloud security and access controls, including IAM, encryption, and audit logging.
  • Proven ability to lead technical workstreams, mentor junior staff, and collaborate across cross-functional and matrixed teams.
  • Preference will be given to candidates located in the DMV.
  • Travel may be up to 25-50% for candidates not located in the DMV.

What Would Be Nice to Have:
  • Experience building APIs for and/or working with entity validation/entity resolution solutions.
  • Experience with API gateways (Apigee, Kong, Azure API Management, AWS API Gateway).
  • Experience with Python and SQL (including SQL Server).
  • Previous experience working with federal agencies or government environments, including familiarity with security, compliance, and data governance requirements.
  • Previous experience working with LexisNexis (or other similar third-party data provider) products via API endpoints and integrating data into solution environment(s).
  • Experience working in a consulting environment and/or delivering solutions in a matrixed organization.
  • Experience supporting training, user enablement, and scaling of technical capabilities across teams or organizations.
  • Experience building AI/ML-enabled data products, particularly those leveraging unstructured data (e.g., NLP, document processing, image-based analytics).
  • Familiarity with ontology-driven applications, graph-based data modeling, and relationship analytics.
  • Experience implementing role-based access control (RBAC) and auditability compliance.
  • Relevant certifications or equivalent demonstrated expertise.
  • Experience with fraud and/or FinCrime data and monitoring systems.
  • Hands-on experience with financial crime compliance technology and data solutions, e.g., Oracle Mantas, Actimize, Fircosoft, LexisNexis Bridger, World-Check, Dow Jones, Chainalysis, Elliptic, TRM Labs, etc.

The annual salary range for this position is $130,000.00-$216,000.00. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.
What We Offer:
Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.
Benefits include:
  • Medical, Rx, Dental & Vision Insurance
  • Personal and Family Sick Time & Company Paid Holidays
  • Position may be eligible for a discretionary variable incentive bonus
  • Parental Leave and Adoption Assistance
  • 401(k) Retirement Plan
  • Basic Life & Supplemental Life
  • Health Savings Account, Dental/Vision & Dependent Care Flexible Spending Accounts
  • Short-Term & Long-Term Disability
  • Student Loan PayDown
  • Tuition Reimbursement, Personal Development & Learning Opportunities
  • Skills Development & Certifications
  • Employee Referral Program
  • Corporate Sponsored Events & Community Outreach
  • Emergency Back-Up Childcare Program
  • Mobility Stipend

About Guidehouse
Guidehouse is an Equal Opportunity Employer-Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation.
Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco.
If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at 1-571-633-1711 or via email at RecruitingAccommodation@guidehouse.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.
All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or guidehouse@myworkday.com. Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process.
If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse's Ethics Hotline. If you want to check the validity of correspondence you have received, please contact recruiting@guidehouse.com. Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant's dealings with unauthorized third parties.
Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee.

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