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Freelance Data Engineer C2C Jobs in Virginia (NOW HIRING)

Dark Wolf Solutions

Senior Data Engineer

Herndon, VA · Hybrid

$150K - $175K/yr

The Data Engineer will be responsible for designing, building, and optimizing robust data pipelines ... We do not engage with third-party staffing agencies, C2C, or 1099 independent contractors for this ...

Dark Wolf Solutions

Senior Data Engineer

Herndon, VA · Hybrid

$150K - $175K/yr

The Data Engineer will be responsible for designing, building, and optimizing robust data pipelines ... We do not engage with third-party staffing agencies, C2C, or 1099 independent contractors for this ...

Dark Wolf Solutions

Senior Data Engineer

Herndon, VA · On-site

$150K - $175K/yr

The Data Engineer will be responsible for designing, building, and optimizing robust data pipelines ... We do not engage with third-party staffing agencies, C2C, or 1099 independent contractors for this ...

MANTECH

Senior Cyber Security Engineer

Chantilly, VA · On-site

This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network ... Experience with technologies involved in large-scale enterprise network deployments and data ...

MANTECH

Senior Cyber Security Engineer

Chantilly, VA · On-site

This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network ... Experience with technologies involved in large-scale enterprise network deployments and data ...

MANTECH

Senior Cyber Security Engineer

Chantilly, VA

This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network ... Experience with technologies involved in large-scale enterprise network deployments and data ...

ManTech

Senior Cyber Security Engineer

Chantilly, VA · On-site

$114K - $190K/yr

... IT, Data Analytics and Software Development. Elevate your career and make a difference. Your ... This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network ...

AFL

Sr. Data Center Estimating Engineer

Ashburn, VA · On-site

NO Third party / C2C Candidates please - W-2 only Job Summary The Senior Data Center Estimator is responsible for evaluating and interpreting customer specifications, engineering documentation, scope ...

Socket.dev

Sr. Cyber Security Engineer

Chantilly, VA · On-site

$135 - $220/hr

Engineering, designing, and implementing C2C deployment support while managing the appliances ... Hands on experience with technologies involved in large-scale enterprise deployments and data ...

New

Seneca Holdings

Sr. Cyber Security Engineer

Chantilly, VA · On-site

$135K - $220K/yr

This team member will work to engineer, design, and sustain Comply-to-Connect (C2C) deployment ... and data center environments. • Experience deploying enterprise security software products ...

Seneca Holdings

Sr. Cyber Security Engineer

Chantilly, VA · On-site

$135K - $220K/yr

Engineering, designing, and implementing C2C deployment support while managing the appliances ... Hands on experience with technologies involved in large-scale enterprise deployments and data ...

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All JobsData Engineer C2C JobsFreelance Data Engineer C2C JobsFreelance Data Engineer C2C Jobs in Virginia

Freelance Data Engineer C2C information

What are the key skills and qualifications needed to thrive as a freelance data engineer C2C?

To thrive as a Freelance Data Engineer C2C, you need expertise in data modeling, ETL processes, SQL, and proficiency in at least one programming language like Python or Scala, often supported by a degree in computer science or a related field. Familiarity with cloud platforms (such as AWS, Azure, or GCP), big data tools (like Hadoop or Spark), and relevant certifications (such as AWS Certified Data Analytics) is typically required. Strong problem-solving skills, effective communication, and the ability to manage projects independently distinguish top freelance professionals. These capabilities ensure you can deliver scalable, reliable data solutions tailored to diverse client needs in a dynamic contract environment.

What is the difference between Freelance Data Engineer C2C vs Freelance Data Analyst C2C?

AspectFreelance Data Engineer C2CFreelance Data Analyst C2C
Required CredentialsTypically requires data engineering certifications, SQL, Python, cloud platform knowledgeOften requires data analysis certifications, SQL, Excel, visualization tools
Work EnvironmentFocus on building data pipelines, ETL processes, data architectureFocus on interpreting data, creating reports, dashboards
Employer & Industry UsageUsed in tech, finance, healthcare for infrastructure projectsUsed across marketing, retail, consulting for insights and reporting

Freelance Data Engineer C2C professionals primarily develop data infrastructure, while Freelance Data Analysts focus on interpreting data and creating reports. Both roles require SQL and related skills but differ in their core responsibilities and industry applications.

What are some common challenges faced by freelance data engineers working on a C2C basis, and how can they be managed?

Freelance Data Engineers working on a Corp-to-Corp (C2C) basis often face challenges such as quickly adapting to different clients' data infrastructures, managing multiple projects simultaneously, and ensuring clear communication with remote or distributed teams. Navigating varied tech stacks and client-specific security protocols can also be demanding. To manage these challenges, it's important to establish thorough onboarding processes, maintain organized project management practices, and set clear expectations with clients regarding deliverables and timelines.

What is a freelance data engineer C2C?

A Freelance Data Engineer C2C (Corp-to-Corp) is a data engineering professional who works independently or through their own registered business entity, providing data engineering services to clients on a contract basis. The C2C arrangement means the contract is between the client's corporation and the freelancer's corporation, rather than as a direct employee or as an individual contractor (1099). Freelance data engineers typically design, build, and maintain data pipelines and infrastructure, working with large datasets to support business needs. This setup allows for more flexible, project-based work and can offer tax advantages for both the freelancer and the client.
What are the most commonly searched types of Data Engineer C2C jobs in Virginia? The most popular types of Data Engineer C2C jobs in Virginia are:
What are popular job titles related to Freelance Data Engineer C2C jobs in Virginia? For Freelance Data Engineer C2C jobs in Virginia, the most frequently searched job titles are:
What job categories do people searching Freelance Data Engineer C2C jobs in Virginia look for? The top searched job categories for Freelance Data Engineer C2C jobs in Virginia are:
What cities in Virginia are hiring for Freelance Data Engineer C2C jobs? Cities in Virginia with the most Freelance Data Engineer C2C job openings:
Freelance Data Engineer C2C jobs near you
Infographic showing various Freelance Data Engineer C2C job openings in Virginia as of July 2026, with employment types broken down into 1% As Needed, 83% Full Time, 12% Part Time, 1% Temporary, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

Senior Data Engineer

Dark Wolf Solutions

Herndon, VA • Hybrid

$150K - $175K/yr

Full-time, Contractor

Re-posted 26 days ago

Job description

Dark Wolf is looking for a Senior Data Engineer to join our team in Herndon, VA supporting the Defense Health community. This position will have hybrid/remote flexibility. The Data Engineer will be responsible for designing, building, and optimizing robust data pipelines and data infrastructure to ensure the reliability, accessibility, and quality of operational medicine data for analytics and mission-critical applications. The ideal candidate will leverage extensive experience with data engineering principles, DevSecOps best practices, and Test Driven Development (TDD) principles to rapidly develop and deliver first-class, customer-centric software solutions. They will utilize leading languages and frameworks, including Python (FastAPI), AWS, SQL (Trino SQL), and Rancher Kubernetes, to develop high-performance data engineering solutions, automate testing, and ensure delivered software meets and exceeds customer needs, all while working collaboratively within a dedicated team.

Key Responsibilities:

  • Using DevSecOps best practices to rapidly develop and deliver first class solutions for a DoW customer.
  • Developing software using leading languages and frameworks including Python (FastAPI), AWS, SQL (Trino SQL), and Rancher Kubernetes.
  • Building high-throughput data pipelines that aggregate, standardize, and process large volumes of heterogeneous data with Apache Spark, DBT, and Trino.
  • Establishing RESTful API endpoints that rapidly return large volumes of analytical health data.
  • Taking ownership of project domains and quickly becoming proficient in novel subjects.
  • Leveraging Test Driven Development and User Centered design best practices automate testing and ensure delivered software meets and exceeds customer needs.
  • Applying software design best practices to identify and analyze potential solutions, generate design diagrams to convey and capture system design, and participate in technical exchange meetings to discuss with the team and customer stakeholders.
  • Embracing a shared responsibility for system security.
  • Continuously engaging with project teams to deliver quality products.
  • Participating in daily standups, sprint planning/review meetings, discover and framing workshops, and customer demo sessions.

Required Qualifications:

  • B.S. in Computer Science (or equivalent experience) and at least 8 years of professional experience working as part of an Agile team using DevOps practices and modern programming languages and frameworks to develop and engineer data-related services and applications to cloud platforms
  • Experience with modern programming languages and frameworks including Python (FastAPI, Django, Flask), JavaScript (Node.js, Express, Vue, Svelte, React), and Java (Spring Boot)
  • Experience developing data focused solutions to include experience designing and implementing OpenAPI compliant data schemas and REST APIs, implementing data persistence and query logic using Object Relational Mapping (ORM) libraries and SQL, and implementing data validation business rules
  • Experience developing AWS cloud solutions with a specific focus on data services such as S3, RDS, and EMR
  • Experience building scalable, production-grade data solutions that can be used by thousands of data consumers concurrently
  • US Citizenship and an active Secret security clearance

Desired Qualifications:

  • M.S in Computer Science or related
  • Experience with AI/ML
  • Experience with Kubernetes (Rancher RKE2, AWS EKS) and microservice architectures
  • Experience with data engineering and big data technologies such as Apache Airflow, Trino, and AWS EMR
  • Experience with NIST Risk Management Framework and security accreditation process and tasks
  • Experience with HL7, FHIR, and Mirth Connect
  • Experience with dbt and Apache Spark
  • Familiarity with Great Expectations, data contracts, and data validation

This position has hybrid schedule flexibility. The salary range is expected to be between $150,000 to $175,000, commensurate on experience.

We are proud to be an EEO/AA employer Minorities/Women/Veterans/Disabled and other protected categories.
We are strictly looking for direct, full-time W2 employees. We do not engage with third-party staffing agencies, C2C, or 1099 independent contractors for this role.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.