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Contract Neo4J Developer Jobs in Washington (NOW HIRING)

Twenty

Senior Backend Software Engineer

Arlington, VA · On-site

... contracts and data structures that are efficient and usable. • Evaluate new technologies and ... Neo4j, AWS Neptune, or similar), including schema design and query performance. • You have ...

Wyetech

System Engineer 3

Fort George G Meade, MD

$55.72 - $137.86/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Due to federal contract requirements, United States Citizenship and position appropriate security ... Neo4j, AWS (Lambda, EC2, ECS/EKS, SAGEMAKER, S3, RDS, OpenSearch). Desired Technical Skills

Wyetech

System Engineer 3

Fort George G Meade, MD

$55.72 - $137.86/hr

Due to federal contract requirements, United States Citizenship and position appropriate security ... Neo4j, AWS (Lambda, EC2, ECS/EKS, SAGEMAKER, S3, RDS, OpenSearch). Desired Technical Skills

Sunayu

Contingent Senior Data Scientist - Top Secret

Alexandria, VA · On-site

$180 - $240/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

No Position is contingent upon contract award Sunayu, LLC is looking for a Data Scientist to lead ... Collaborate with multidisciplinary teams of analysts, engineers, and developers to solve complex ...

InterImage, Inc.

Software Engineer 3 - IV

Annapolis, MD · On-site

$100 - $130/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

CASPORT * Neo4j * Agency Security Labels(CAMKEY, LAC, COI, etc.) Qualifications * 12 years ... contracts of similar scope, type, and complexity is required. * Bachelor's degree in Computer ...

InterImage, Inc.

Software Engineer 3 - III

Annapolis, MD · On-site

$100 - $130/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

CASPORT * Neo4j * Agency Security Labels(CAMKEY, LAC, COI, etc.) Qualifications * 12 years ... contracts of similar scope, type, and complexity is required. * Bachelor's degree in Computer ...

InterImage

Cloud Software Engineer 3

Fort George G Meade, MD · On-site

$66.50 - $86.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Neo4j * Agency Security Labels(CAMKEY, LAC, COI, etc.) Requirements Twelve years experience software engineering experience in programs and contracts of similar scope, type, and complexity is ...

Power3 Solutions

Cloud Software Engineer L3

Laurel, MD · On-site

$200K - $275K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

AWS * Bash * Databases - Postgres, neo4j, click-house, accumulo, mongo-db, sql-lite, duckDB ... Contract Wage Determination, relevant work experience, skills and competencies that align to the ...

InterImage

Cloud Software Engineer 3

Fort George G Meade, MD · On-site

$66.50 - $86.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Neo4j * Agency Security Labels(CAMKEY, LAC, COI, etc.) Requirements Twelve years experience software engineering experience in programs and contracts of similar scope, type, and complexity is ...

Power3 Solutions

Cloud Software Engineer L3

Laurel, MD · On-site

$200K - $275K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

AWS * Bash * Databases - Postgres, neo4j, click-house, accumulo, mongo-db, sql-lite, duckDB ... Contract Wage Determination, relevant work experience, skills and competencies that align to the ...

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Showing results 41-60

All JobsContract Neo4J Developer JobsContract Neo4J Developer Jobs in Washington

Contract Neo4J Developer information

What is a contract Neo4J developer?

Contract Neo4J Developers are professionals who specialize in building, maintaining, and optimizing applications using the Neo4J graph database, typically hired on a contract or freelance basis. They work with organizations to design and implement graph-based data models, write Cypher queries, and integrate Neo4J with other systems. Their expertise is valuable for projects involving complex relationships in data, such as recommendation engines, fraud detection, or network analysis. Contract developers provide flexibility for companies that need specialized skills for a specific period or project without committing to a full-time hire.

What are common challenges a contract Neo4J developer may face when integrating graph databases with existing systems?

As a Contract Neo4J Developer, one common challenge is ensuring seamless integration of Neo4J with legacy systems or traditional relational databases. This often requires a strong understanding of both graph database modeling and data migration strategies. Additionally, optimizing Cypher queries for performance and managing data consistency across platforms can be complex, especially in large-scale or real-time environments. Effective communication with backend developers and data engineers is essential to align on integration protocols and address any bottlenecks that arise.

What is the difference between Contract Neo4J Developer vs Graph Database Engineer?

AspectContract Neo4J DeveloperGraph Database Engineer
CredentialsProficiency in Neo4J, Cypher, and database fundamentalsNeo4J skills plus broader graph database knowledge and certifications
Work EnvironmentProject-based, client-specific, often freelance or contract rolesFull-time or consulting roles in organizations using graph databases
Industry UsagePrimarily in data analytics, knowledge graphs, and AI projectsIn enterprise data management, complex data modeling, and infrastructure

The Contract Neo4J Developer focuses on implementing and maintaining Neo4J graph databases for specific projects, often on a contract basis. In contrast, a Graph Database Engineer has a broader role, working with multiple graph database technologies and integrating them into larger systems. Both roles require strong knowledge of graph databases, but the Engineer typically has a wider scope and may hold additional certifications.

What skills and qualifications are needed to thrive as a contract Neo4J developer?

To thrive as a Contract Neo4J Developer, you need strong expertise in graph database concepts, proficiency in Cypher query language, and experience with data modeling, usually backed by a degree in computer science or related field. Familiarity with Neo4J tools, integrations with Java or Python, and deploying databases in cloud environments are typically required, along with knowledge of relevant certifications. Exceptional problem-solving, adaptability, and effective communication are crucial soft skills to collaborate with diverse teams and translate business needs into technical solutions. These skills ensure the delivery of efficient, scalable graph database solutions that meet project requirements and drive organizational insights.

What are popular job titles related to Contract Neo4J Developer jobs in Washington?

For Contract Neo4J Developer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Contract Neo4J Developer jobs in Washington look for?

The top searched job categories for Contract Neo4J Developer jobs in Washington are:

What cities in Washington are hiring for Contract Neo4J Developer jobs?

Cities in Washington with the most Contract Neo4J Developer job openings:

Contract Neo4J Developer jobs near you
Infographic showing various Contract Neo4J Developer job openings in Washington as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Senior Backend Software Engineer

Twenty

Arlington, VA • On-site

Full-time

Re-posted 25 days ago

Job description

Job Summary:
Twenty Technologies is a company focused on enhancing U.S. national security through advanced cyber operations. The Senior Backend Software Engineer will build backend systems that support cyber capabilities, working on high-performance APIs and complex data modeling to improve operational effectiveness.
Responsibilities:
• Design and implement scalable backend services in Go that improve operator decision-making and response.
• Build high-performance APIs that power customer-facing workflows and internal platform capabilities.
• Model complex relationships in graph databases and optimize schemas and queries for speed and clarity.
• Implement event-driven systems (e.g., with NATS) to process real-time operational data streams.
• Develop and maintain automated tests to protect correctness, security, and performance as the system evolves.
• Build and operate microservices deployed on AWS, with an eye toward resilience and cost-aware scaling.
• Create and improve CI/CD pipelines that enable fast, secure delivery of new capabilities.
• Partner with cyber operations experts to translate domain needs into robust product features.
• Collaborate with frontend engineers on API contracts and data structures that are efficient and usable.
• Evaluate new technologies and patterns that could unlock better operational outcomes.
Qualifications:
Required:
• You have 5+ years of professional software development experience building backend (or full-stack) applications.
• You have strong proficiency with Go (Golang) and have shipped production services with it.
• You have experience working with graph databases (Neo4j, AWS Neptune, or similar), including schema design and query performance.
• You have working knowledge of event-driven architectures and message queues/streaming systems.
• You have experience building and maintaining APIs (REST and/or GraphQL).
• You have experience with cloud infrastructure, ideally AWS, and understand cloud-native deployment patterns.
• You have hands-on experience with containerization and microservices architectures.
• You have a strong foundation in secure coding practices and can reason about security tradeoffs.
• You have a bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
Preferred:
• You’ve delivered software in defense, security, or other mission-critical environments.
• You’ve built systems for analysts, operators, or high-tempo users where speed and reliability matter.
• You’ve integrated AI/ML capabilities into production systems (inference, pipelines, or tooling).
• You have experience with large-scale data processing and analytics workloads.
• You’ve contributed meaningfully to open-source projects.
• You’ve used observability tooling (metrics, tracing, logging) to debug and improve production systems.
Company:
We apply world-class software engineering to a warfighting domain of persistent conflict. Founded in 2024, the company is headquartered in Arlington, USA, with a team of 51-200 employees. The company is currently Early Stage.

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