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Hire the Top 3% of Freelance Neo4j Developers
Toptal is a marketplace for top Neo4j developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Neo4j freelancers for their mission-critical software projects.
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Shanthi Viswanathan
Freelance Neo4j Developer
Verified Expert in Engineering
United States
Toptal Member Since June 24, 2020
Shanthi has over 25 years of experience developing applications using various technologies. As an architect, she's executed several web-based applications, integrations, data migrations, data conversions, and data warehousing projects with significant hands-on as well as leadership responsibilities. She keeps up-to-date with the latest technologies and can effectively match the business needs with those technologies.
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Radu Marian
Freelance Neo4j Developer
Verified Expert in Engineering
United States
Toptal Member Since December 31, 2024
Radu is a senior GenAI and knowledge graph solution architect delivering solutions for cybersecurity, investments, agriculture, and economy domains. For over 25 years, he has accomplished numerous proofs of concept and pilot projects, led standardization efforts at OASIS and ITU-T, and was granted patents for inventions in cybersecurity and enterprise knowledge management. Radu holds a master's degree in computer science from UNC Charlotte.
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Iacob-Ghiula Adrian
Freelance Neo4j Developer
Verified Expert in Engineering
Austria
Toptal Member Since August 17, 2021
Adrian's passion for problem-solving, a knack for science, and an eye for details have led to 15+ years of experience proposing and developing back-end solutions in a pragmatic manner. As an architect and technical team lead, he has been involved in integrating 3rd-party systems, upgrading legacy systems, and developing greenfield projects, constantly successfully collaborating and communicating across all parts of an organization.
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Ming Liu
Freelance Neo4j Developer
Verified Expert in Engineering
Singapore
Toptal Member Since June 16, 2021
Ming is a machine learning engineer specializing in recommender and anti-fraud systems. He has been working in data science and AI for the past four years, including building and improving the recommender system for Shopee and TikTok, which have hundreds of millions of users and items. Ming's industry experience is backed by a master's degree in computer science.
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Leonardo dos Santos Pinheiro
Freelance Neo4j Developer
Verified Expert in Engineering
Australia
Toptal Member Since July 4, 2019
Leonardo is a machine learning engineer with 10 years of industry experience across the government, energy markets, finance, healthcare, and consulting. Leonardo is well versed in work with analytics, data engineering, and machine learning, specializing in the development and deployment of AI systems for computer vision, NLP, and recommender systems.
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Dhaval Chheda
Freelance Neo4j Developer
Verified Expert in Engineering
India
Toptal Member Since May 17, 2022
Dhaval has deep expertise and is certified in managing complex and high-traffic cloud infrastructure on AWS. He is also an expert in React front-end development for innovative edtech and staffing companies for the past six years. He has 15+ years of experience architecting and coding web applications that serve millions of registered users. Dhaval is a go-getter with a strong work ethic, and people enjoy working with him. He has a bachelor's degree in computer engineering.
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Derek Thomas
Freelance Neo4j Developer
Verified Expert in Engineering
United Arab Emirates
Toptal Member Since September 22, 2021
Derek is a lead data scientist and engineer and a passionate leader with 8+ years of experience. His industry experience includes oil and gas, health, finance, and social media, and he has saved $1.3 million and generated $4 million since 2020. Derek has broad domain experience, three publications in respected conferences, and master's and bachelor's degrees in electrical and computer engineering. He loves working with teams to find solutions that best fit clients' needs.
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Marcus Young
Freelance Neo4j Developer
Verified Expert in Engineering
United States
Toptal Member Since June 19, 2024
Marcus is a senior engineering leader with 15+ years of overall experience and 7+ years of experience leading back-end software development. As a staff software engineer in the fintech industry, he focused primarily on building cloud-native distributed systems and AI/ML pipelines to facilitate loan origination, payments, and fraud detection. Having recently worked on LLM-backed systems, he is looking forward to tackling the challenges associated with deploying and supporting LLMs in production.
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Keyvis Damptey
Freelance Neo4j Developer
Verified Expert in Engineering
United States
Toptal Member Since August 16, 2019
Keyvis uses statistics and mathematics to discover valuable information by identifying, testing, and verifying relationships between all the factors influencing your business. This process unveils the nuances to the "lay of the land" when it comes to the costs, operations, or customer sentiment that your organization must work with. From there, you both can discover the impact of actions and design strategies around your organization's goals.
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Bishwajit Purkaystha
Freelance Neo4j Developer
Verified Expert in Engineering
United Kingdom
Toptal Member Since March 9, 2021
Bishwajit is a full-stack software developer since 2016. He expertises in writing front-end applications in React that's serving millions of users across B2B marketplaces, fintech services, banking organizations, recreational services, and other industries. He has equal expertise in Java Spring Boot apps used for fintech and banking operations where consistency and fail-safety are primary. Bishwajit is excellent in communications and has several thousands of hours behind him in remote projects.
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Sanja Zdravkova
Freelance Neo4j Developer
Verified Expert in Engineering
Macedonia
Toptal Member Since August 31, 2020
Sanja is a back-end engineer with 8+ years of experience, specializing in Node.js, TypeScript, and AWS. She builds scalable, secure systems and thrives in collaborative environments. As a team player with strong problem-solving skills, she is always eager to learn and adapt to new technologies. Sanja seeks an opportunity to contribute technical expertise and collaborate in a dynamic environment to build efficient, high-performing applications.
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Start HiringToptal in the press
... allows corporations to quickly assemble teams that have the right skills for specific projects.
Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.
Our clients
Creating an app for the game
Leading a digital transformation
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Testimonials
How to Hire Neo4j Developers Through Toptal
1
Talk to One of Our Client Advisors
A Toptal client advisor will work with you to understand your goals, technical needs, and team dynamics.
2
Work With Hand-selected Talent
Within days, we’ll introduce you to the right Neo4j developer for your project. Average time to match is under 24 hours.
3
The Right Fit, Guaranteed
Work with your new Neo4j developer for a trial period (pay only if satisfied), ensuring they’re the right fit before starting the engagement.
EXCEPTIONAL TALENT
How We Source the Top 3% of Neo4j Developers
Our name “Toptal” comes from Top Talent—meaning we constantly strive to find and work with the best from around the world. Our rigorous screening process identifies experts in their domains who have passion and drive.
Of the thousands of applications Toptal sees each month, typically fewer than 3% are accepted.
Capabilities of Neo4j Developers
Neo4j developers design graph data models, write optimized Cypher queries, and apply advanced algorithms to uncover meaningful connections across large datasets. With strengths in performance tuning, data ingestion, security, and API integration, they build graph-powered applications that support analytical, operational, and real-time decision needs.
Graph-based Domain Modeling
Organizations rely on Neo4j to map complex relationships that traditional databases struggle to represent clearly. Toptal Neo4j developers design node, edge, and property structures that mirror real-world domains, creating graph models that remain intuitive, scalable, and optimized for traversal-heavy applications.
Efficient Cypher Query Development
Reliable applications rely on fast and precise graph retrieval, especially when datasets grow or queries involve chaining multiple relationships. Our Neo4j developers craft Cypher queries that minimize overhead, streamline traversal paths, and return targeted results quickly, even in highly connected environments.
Indexing and Constraint Management
High-volume graph applications require structured lookup paths to maintain responsive queries and consistent data as relationships proliferate. Toptal Neo4j developers define indexes and apply uniqueness or property constraints that reduce search time, prevent conflicting records, and maintain the integrity of nodes and relationships.
Graph Algorithm Implementation for Insights
Many teams rely on graph algorithms when they need to uncover patterns, rankings, or communities that are hard to detect with standard analytics. Our Neo4j developers run algorithms like centrality, community detection, and shortest path to surface insights hidden within complex relationship networks.
Data Ingestion and Synchronization Pipelines
Graph databases become far more valuable when they stay aligned with constantly changing operational data. Toptal Neo4j developers design ingestion pipelines and synchronization workflows that reliably bring information into the graph, whether through batch ETL, streaming inputs, or recurring updates.
Database Performance Optimization
High-volume graph workloads can slow down if memory usage, caching, or query plans drift from optimal settings. Our Neo4j developers monitor execution patterns and adjust key parameters to ensure the database remains responsive during complex traversals and peak traffic periods.
Transaction and Concurrency Control
High-traffic applications require predictable behavior when multiple processes simultaneously access or modify the graph. Toptal Neo4j developers manage ACID transactions, handle lock scenarios, and structure operations to prevent conflicts that could slow throughput or disrupt data integrity.
Graph Security and Access Permissions
Protecting sensitive relationships and data structures is crucial for teams working in regulated or multi-department environments. Our Neo4j developers implement role-based access rules, encryption, and permission controls that safeguard information without hindering collaboration or analytical flexibility.
Backup, Recovery, and High Availability Planning
Continuous access to graph data becomes critical when applications depend on real-time relationships for decision-making. Toptal Neo4j developers establish backups, clustering, replication, and failover strategies that keep the database resilient and quickly recoverable in the event of unexpected outages.
Application Layer and API Integration
Many products rely on graph insights delivered directly to services, dashboards, or client applications. Our Neo4j developers build integration layers that translate application requests into efficient graph operations and return structured results through APIs or microservices.
FAQs
Typically, you can hire Neo4j developers with Toptal in about 48 hours. For larger teams of talent or full end-to-end project delivery, timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.
Once you select your Neo4j developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.
To hire the right Neo4j developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect Neo4j developers for your project.
At Toptal, we thoroughly screen our Neo4j developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.
In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.
When you hire Neo4j developers with Toptal, you’ll always work with world-class, custom-matched Neo4j developers ready to help you achieve your goals.
You can hire Neo4j developers on an hourly, part-time, or full-time basis. Toptal can also manage the project end-to-end based on your specific requirements as part of our Consulting and Services offerings. Whether you hire a Neo4j developer for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our Neo4j developers can fully integrate into your existing team for a seamless working experience.
We make sure that each engagement between you and your Neo4j developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another Neo4j developer who may be a better fit and with whom we will begin a second, no-risk trial.
Tap Into World-class Talent
Trusted Talent Only
Our talent are thoroughly vetted professionals who ramp up quickly, function as essential team members, and deliver results.
Precise Matching
Our experienced talent matchers specialize in pairing you with the right fit. They work to understand exactly what you need and hand-select the best professionals for your project.
Seamless Hiring
We handle all aspects of billing, payments, and NDAs, streamlining the hiring process so you can focus on innovation, not overhead.
No-risk Trial Period
We want to be sure your engagement is a total success, so we offer a no-risk trial period. Work with your new hire for up to two weeks and pay only if you’re satisfied.
Effortless Scaling
Scale your team up or down as needed, with quick and efficient hiring in under 48 hours.
Flexible Engagements
Choose the engagement type that suits your needs—hourly, part-time, or full-time— and enjoy the flexibility to adjust as needed.
Featured Toptal Neo4j Publications
Top Neo4j Developers Are in High Demand.
