Neo4j is a graphical database management system with open source code implemented in Java. As of 2015, it is considered the most common graph database system. The developer is the American company Neo Technology, the development has been underway since 2003. The data is stored in its own format, specially adapted to represent graph information, this approach in comparison with the modeling of a graph database by means of a relational DBMS makes it possible to apply additional optimization in the case of data with a more complex structure. Also, it is claimed that there are special optimizations for SSD-drives while processing the graph does not require its placement entirely in the memory of the computing node, so it is possible to process large enough graphs. The main transactional capabilities are ACID support and compliance with JTA, JTS and XA specifications. The application programming interface for DBMS is implemented for many programming languages, including Java, Python, Clojure, Ruby, PHP, and also implemented the API in the REST style. You can extend the programming interface both with server plug-ins and with unmanaged extensions; plugins can add new resources to the REST interface for end users, and extensions allow full control over the program interface and can contain arbitrary code, so they should be used with caution.
Neo4j Development Services
Looking for a Neo4j developer for your business? You clearly came to the proper vendor. “Echo” provides IT staffing services and project based coding. We pleasantly help you to find the relevant employee or a team for remote collaboration. All our coders are accomplished experts experienced in developing tailor-made apps using the up-to-date techs, including NEO4J, Agile, Python, WPF, ASP.NET, WebGL, Cassandra, Redis, PostgreSQL, SCADA, Meteor. You can also hire us as a Neo4j development company and outsource full-cycle development services to us.
OUR ADVANTAGES :
- Greatest Ukrainian developers with more than 5 yrs of commercial experience.
- Staff retention best standards to make sure your coders stay contented.
- Personal account managers to maintain smooth cooperation.
- Flexible model with predictable bi-weekly payments.
We help you accelerate your ideas by providing reliable Neo4j developers who can join your firm and immediately start delivering first-rate code. Get in touch with us and review the profiles of software engineers available for work right now. Also, you can read “Neo4j Developer Salary in the US and UK compare to Ukraine” to reveal the true cost of hiring.
TOP5 Neo4j Programmers in May 2019
1 Yevhen G.,Age: 26, E-mail: email@example.com,
Skills: HTML/CSS, Java, Scrum Master, NoSQL (Redis), SQL, MySQL, NoSQL (Neo4j)
Contact Us to Get the Full CV (ID 611237)
2 Artem P.,Age: 32, E-mail: firstname.lastname@example.org,
Skills: JS (Angular 1.x), JS (Node), HTML5/CSS3, MySQL, NoSQL (Neo4j)
Contact Us to Get the Full CV (ID 554318)
3 Roman B.,Age: 31, E-mail: email@example.com,
Skills: Java, MySQL, PostgreSQL, NoSQL (MongoDB), NoSQL (Neo4j)
Contact Us to Get the Full CV (ID 554317)
4 Nina M.,Age: 29, E-mail: firstname.lastname@example.org,
Skills: JS (React), JS (jQuery), NoSQL (Neo4j)
Contact Us to Get the Full CV (ID 554315)
5 Alexandr D.,Age: 32, E-mail: email@example.com,
Skills: HTML/CSS, JS (jQuery), MySQL, PostgreSQL, NoSQL (Neo4j)
Contact Us to Get the Full CV (ID 554309)
Questions and Answers related to Neo4j Development
What does a constant-time traversal in graph DB mean, and how is it ensured?
“Graph is a natural index. Everything is indexed—-nodes are connected to each other via edges. It takes constant time to locate the relevant data. To understand the constant index lookup property, let’s step back to a familiar context—the relational database. In relational database, when you lookup an indexed value, it takes constant time. Analogy is the Table of Contents (TOC) of a book, regardless of the book content thickness, it takes constant time to look up the TOC and locate a content…”
What are the advantages of graph databases over logic programming languages like Neo4j?
“A database is persistent, can serve multiple clients, since can scale and perform transactions, and operations that would be harder to specify or slower. Each node of the graph can have data. Each link can have data. A node can link to nodes in other graphs. Try find-shortest-path on a graph with 30,000 nodes and 280,000 connections. When I tested it yesterday it took about a tenth of a second to find a shortest path that was eight nodes long, out of millions of possible paths…”
How do I know whether I should use PostgreSQL or a graph database like Neo4j?
“Graph DB would be much faster when you are interested in querying individual instances as opposed to large sets of instances. Graph DB effectively pre-joins individual records avoiding index lookups and making such query time independent of dataset size (index-free adjacency). Recursive queries that arise when exploring relationships on the same class (e.g. friend of a friend) are easier with a traverse operation available in graph query languages…”
Are graph databases like Neo4j currently able to process big data (including the volume dimension)?
“There are two types of graph databases. Graph engines for transaction processing , e.g. OrientDB and Neo4J and graph analytic engines. JanusGraph is an open source transaction graph database with Apache 2.0 license. It is a fork of TitanDB and uses Cassandra or HBase as a storage engine with optional indexing in Solr and graph analytics in GraphX. JanusGraph is distributed and can handle large volumes of data. Unlike Neo4J it uses the concept of an adjacency list as storage whereas Neo4J uses a doubly linked list…”
What are good books on advanced topics in Neo4j?
Consider asking some of these questions during a job interview to assess candidate’s skills.
Big Names Using Neo4j
What Fortune 500 companies are using Neo4j in production among other popular technologies? A good example is MS&AD Insurance (www.ms-ad-hd.com).
MS&AD Insurance Group Holdings. MS&AD Insurance Group Holdings, Inc. is the holdings company of MS&AD Insurance Group. It creates strategy for the entire group and also engages in various activities for the local communities and environment.
Typical Programming Projects and Tasks for Neo4j Developers
React Native Developer (iOS & Android)
We are searching for a senior React Native engineer to help with our iOS and Android application. If it's not too much trouble not this isn't an expo application but rather local cli. In unique ... (Pakistan)
Development Of An App
Articulations OF INTEREST - DEVELOP AN APP SIMILAR TO https://play.google.com/store/applications/details?id=au.com.solarisfinance.calculator. All computations required are in an equation working ... (Pakistan)
Senior Software Developer With Data Mining Experience
Envion Software is currently looking for a full stack developer with a production experience in data mining, data management, and data modelling solutions to join the Envion’s Research & Development ... (United States)
Android App Developer For Sports
We are looking for someone who has good expensive experience in Android application development as well as admin panel, backend api. The scope of the project is to show the live sports and feeds, news ... (United States)
These results are based on the freelance Neo4j jobs extracted from Upwork in May 2019.
Echo is Trusted by the World’s Leading Companies
Find freelance neo4j experts for hire. Access 27 neo4j freelancers and outsource your project. Hire the best Neo4j Specialists Work with expert freelancers on Upwork — the top freelancing website for short-term tasks, recurring Stripe — HTML5, CSS3, jQuery, Vuejs– Coding a html5, css3, jQuery responsive page PSD to html5,css3,jquery 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 start-ups choose Toptal Neo4j freelancers for their mission-critical software projects. Contributing Code Intro The Neo4j community is a free software and open source community centered around software and components for the Neo4j Graph Database. It is sponsored by Neo Technology, which provides infrastructure (different kinds of hosting, documentation, etc.) as well as… Hire top senior Neo4j developers, software engineers, consultants, architects, and programmers for freelance jobs and projects. CodementorX is trusted by top companies and startups around the world – chat with us to get started. Hire the world’s best freelance Neo4j Graph Database experts. Harvard-incubated Experfy is a marketplace for hiring top Neo4j Graph Database experts, developers, engineers, coders and architects. We allow you to work with up to 3 developers from our Neo4j Development team for a period of up to 2 weeks to ensure a good fit and that the performance meets your expectations. You are only obligated to pay if you’re satisfied with the work product. About Code Armada World’s #1 Neo4j Consultancy. As a Neo Technology Solution Partner, we believe that for many use cases, Neo4j is the best database out there. However, we are an independent company and offer unbiased advice. Therefore, we can also help you evaluate, whether Neo4j is the right solution to your problem.