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Freelance Data Integration Developer Jobs (NOW HIRING)

Junior Data Integration Developer

Mclean, VA · On-site

$67K - $87K/yr

Junior Data Integration Developer Company: BLN24 About Us: We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm that supports the U.S. Federal ...

Junior Data Integration Developer

Mclean, VA · On-site

$67K - $88K/yr

They are seeking a Junior Data Integration Developer to support the development and integration of cloud-native data services and backend integration solutions for mission-critical forecasting and ...

Python Data Integration Developer

Manhattan, NY · On-site

$55.25 - $76.25/hr

Python Data Integration Developer Basic Information * Experience Level: 5-10 years Required Skills * Strong Python 3.x experience for data ingestion and transformation. * DataFrame processing ...

This is a hands-on technical leadership role combining software engineering, data integration, and partner collaboration, with a clear growth path toward leading the Data Integration function.

Data/AI/ML Integration Developer Location: New York, NY Role Summary: Create secure, scalable integration pipelines and APIs connecting clinical systems, Snowflake data stores, and AI model endpoints.

MuleSoft Integration Developer

San Jose, CA · On-site

$59 - $78.25/hr

The MuleSoft Integration Developer will play a key role in the design, development, and maintenance of data integration solutions that enable seamless data flow across various systems. The ideal ...

Data Integration Engineer Location: Dallas TX Duration: 6 to 12+ Months Technical Skills: * Proficient in Apache Kafka concepts (producers, consumers, topics, partitioning, etc.) * Expertise in ...

Integral Federal is seeking a Data Integration Engineer to engineer and sustain mission-data movement, synchronization, transformation, reconciliation, and quality across JPES/JCRM and external ...

Showing results 21-40

Freelance Data Integration Developer information

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How much do freelance data integration developer jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for freelance data integration developer in the United States is $51.68, according to ZipRecruiter salary data. Most workers in this role earn between $43.51 and $58.17 per hour, depending on experience, location, and employer.

What are the most commonly searched types of Data Integration Developer jobs?

The most popular types of Data Integration Developer jobs are:

Infographic showing various Freelance Data Integration Developer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, and 3% Contract. Highlights an 84% Physical, 4% Hybrid, and 12% Remote job distribution, with an average salary of $107,501 per year, or $51.7 per hour.

Junior Data Integration Developer

BLN24

Mclean, VA • On-site

$67K - $87K/yr

Full-time

Medical, Dental, Vision

Re-posted 6 days ago


Job description

Job Title: Junior Data Integration Developer
Company: BLN24
About Us: We find strength in teamwork-a better you is a better us
BLN24 is an award-winning Management Consulting Firm that supports the U.S. Federal Government in successfully achieving their mission and goals. Our service and solutions delivery start with understanding each client's end-state, and then seamlessly integrating within each Agency's organization to improve and enhance strategic and technical operations and deployments.
Position Overview:
BLN24 is seeking a Junior Data Integration Developer to support the development
and integration of cloud-native data services and backend integration solutions
for mission-critical forecasting and data modernization systems. This role focuses
on building and maintaining REST APIs, integrating external data services,
processing and validating large datasets, and supporting scalable backend
integration services using AWS cloud technologies.
The selected candidate will support data transformation, API integrations,
geospatial data workflows, and cloud-native integration pipelines while
collaborating with development teams using Agile and modern development
practices.
Key Responsibilities:
  • Build and maintain RESTful APIs and backend integration services.
  • Develop mock APIs and OpenAPI specifications for system integrations.
  • Support scalable backend services using AWS cloud technologies.
  • Perform data transformation, validation, and processing for large datasets.
  • Assist with geospatial data integration and processing workflows.
  • Support event-driven and streaming data integration pipelines.
  • Support integration testing and API validation activities.
  • Document data flows, API integrations, and system integration patterns.
  • Integrate AWS services including Lambda, S3, DynamoDB, API Gateway, and CloudFront.
  • Develop and execute unit and integration tests.
  • Participate in code reviews and support development best practices.
  • Troubleshoot and resolve integration and application issues.

Required Qualifications:
  • Bachelor's degree in computer science, Software Engineering, Information Systems, or related field.
  • 1-2 years of experience in backend development, API integration, data integration, or web application development.
  • Experience with RESTful API development and integration.
  • Experience with AWS cloud services and cloud-native development patterns.
  • Familiarity with JavaScript/TypeScript and frontend frameworks such as React, Angular, or Vue.js.
  • Experience with Docker and Kubernetes/EKS environments.
  • Understanding of AWS Lambda and serverless architecture concepts.
  • Experience with Git version control and CI/CD pipelines.
  • Strong analytical, troubleshooting, and communication skills.
Preferred Qualifications:
  • Experience with geospatial or mapping libraries such as Mapbox, Leaflet, or OpenLayers.
  • Experience supporting scientific, forecasting, or data-intensive applications.

Technical Skills:
  • REST API Development
  • AWS Cloud Services
  • JavaScript / TypeScript
  • React / Angular / Vue.js
  • Docker & Kubernetes (EKS)
  • AWS Lambda / API Gateway
  • Data Transformation & Validation
  • CI/CD Pipelines
  • Git Version Control

What BLN24 brings to the Game:
BLN24 benefits are game changing. We like our team to play hard and that means they need to be taken care of - physically, financially, and emotionally. We make sure to keep them in the game by giving them access to generous medical, dental, and vision plans.
  • You can join one of the fastest growing companies headquartered in the Washington DC Metro Area. We give you the opportunity to work in different sectors, so you have the chance at variety while maintaining stability.
  • Flexibility at BLN24 allows each individual the opportunity to balance quality work and their personal lives. Depending on projects, we allow remote working opportunities so you can always be in the game no matter where you call home.
BLN24 is an Equal Opportunity Employer. We believe people are our strength and understand diverse talents are key to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. In accordance with applicable law, we make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs.