Hire the best freelance Cassandra NoSQL Database developers
Arc helps you find and hire top freelance Cassandra NoSQL Database engineers for
your jobs. With 3,163 Cassandra NoSQL Database programmers available for hire on a
freelance basis, we have one of the largest network of vetted talent. Our
Silicon Valley-caliber vetting process helps ensure that you hire
freelance Cassandra NoSQL Database developers and experts that you can trust.
Highly motivated and results-oriented Software Engineer with 6+ years of experience designing, developing, and deploying complex web applications and microservices. Proven ability to lead end-to-end full-stack development across multiple projects, collaborate effectively with cross-functional teams, and deliver high-quality solutions on time and within budget. Skilled in RESTful APIs, web application development, ETL pipelines, and DevOps practices. Passionate about building elegant and maintainable software while fostering a collaborative and growth-oriented development environment.
Experienced Engineer with a strong background in software development, interface design, and data streaming solutions. Proficient in building complex event-driven micro service architecture on AWS and working with platforms like Open-Shift, Azure, and Google Cloud. Technology agnostic professional with 15 years of hands-on experience, adept at optimising resource utilisation, maximising systemStaff Engineer efficiency, and enhancing throughput. Skilled in mentoring teams, designing architecture, and implementing monitoring solutions for large-scale systems.
* Experienced in leveraging AWS technologies (Lambda, EC2, Beanstalk, DynamoDB, RDS, EMR, S3, SQS, etc) and opensource technologies like Cassandra, RabbitMQ, etc to solve problems and develop solutions.
* I also have experience with various data science and quant libraries like numpy, pandas, scipy, quantlib, pinescript, etc.
* I am someone who is empathetic, patient but a go-getter who likes to learn by doing and hacking.
* I hold myself to high standards of a software professional. This means that I am committed to: write the best code I can produce in the scope of the project, accountability, responsiveness, and setting clear expectations.
As a Software Developer III at Vendasta, I worked on building large scalable systems that enable businesses to grow their online presence and reputation. I have more than 8 years of experience in backend development, using technologies such as Java, Spring, Cassandra, Neo4j, Kafka, and Netflix OSS. I have a BE in Information Science and Engineering from Global Academy Of Technology, where I learned the fundamentals of data structures, algorithms, and design patterns.
I have been instrumental in the development and delivery of several loyalty programs and product protection plans for the website, using RESTful web services, multi-threading, and graph database design. I have also contributed to the improvement of user retention rate, performance, and reliability of the pricing and promotion team of [JCPenney.com](http://jcpenney.com/), using Apache Spark and Cassandra.
I am always looking for new challenges to solve and new tech to learn, and I have completed several online courses and certifications in machine learning, Kafka, and Spark. I am passionate about creating innovative and impactful solutions that make a difference for customers and businesses. I value collaboration, quality, and continuous learning, and I seek to work with teams and organizations that share these values.
**To Whom It May Concern :**
I have over 30 years of programming experience in all phases of life-cycle project development. My major strengths include data processing analysis, design of complex systems, and implementing flexible informational and data processing systems satisfying complex business requirements. My experience has focused on high-quality coding of business and scientific applications for Windows and Unix/Linux environments. Strong background in mathematics/financial math.
I have strong communication skills, both written and verbal, excellent analytical skills, and the capability to learn new business and technical environments quickly. My technical expertise allows me to make quality technical decisions and translate them into workable solutions using the latest technology.
In addition to my technical strengths, I am an extremely warm and outgoing person who thrives in a team-oriented environment.
_**Sincerely,**_
_**Slava Kovalenko**_
Senior full-stack software engineer, skilled in enhancing teams, products, and organizational performance. Specializing in frameworks for React, Angular, & Vue to create stunning applications empowering your business.
Over two decades of experience in Software Design and Development, specializing in Data Archtecture –Snowflake, Databricks, Apache Spark, DBT, Cassandra, Hadoop, Kafka, MemSQL, Neo4J, Ariflow
• Strong experience in migrating existing SQL based systems to NoSQL (Cassandra, Memsql, Neo4J) systems by re-hosting, re-factoring and re-platforming.
• Expertise in designing and architecting Data Platforms and EDW solutions
• Experience in Timeseries solutions
• Extensive experience of designing and implementing software/infrastructure architecture for large scale and enterprise applications using onsite and cloud technologies – AWS, GCP and Azure
• Vast experience in software design, research, development, team management and client communications • Strong background using OOD/OOP/SOA methodologies
• Excellent technical expertise in Python, Java/JEE, Scala as well as .Net Technologies
• Significant experience of IMDG (In-Memory Data Grids) and Distributed Object Cache
• Strong database skills in designing OLTP and OLAP System using SQL
• Well versed in designing and implementing Cassandra, Memsql and Hadoop
• Professional Exposure with BIG DATA framework Apache Spark and Apache Kafka • Significant Experience in containerization Docker, Kubernetes • Well aware of different development methodologies ranging from heavy weight methodologies like water fall to modern light weight agile methodologies like Agile, Scrum and Kanban
Experienced software engineer, who loves developing performant services and outstanding user experiences. Marco is most experienced in developing .Net Core back-end services and React front-end applications, but can adapt to different technologies as needed and has worked on both NodeJS and Java applications before. C#.Net, ReactJS, Javascript, NodeJs, Kubernetes.
I am an experienced engineer with expertise in backend development, data analysis, and infrastructure automation. I have led projects in stock trading, data analytics, data infrastructure, blockchain and multi-region data storage systems.
Having 5+ years of professional experience in developing web based, SOA based and client/server applications in multi-platform environments with Java/J2EE technologies, Involved in all the phases of Software Development Life Cycle (SDLC). • Hands on experience on Spring Core Annotations for Dependency Injection Spring DI and Spring MVC for REST API and Spring Boot for micro-services. • Build microservices using spring boot for the delivery of software products across the enterprise. • Utilized Java 8 features like Lambda expressions and Stream API for Bulk data operations on Collections which would increase the performance of the Application. • Experience of developing data models by configuring Hibernate persistence layer, mapping Java classes with database using Hibernate, Hibernate Query Language (HQL) and Criteria API. • Experience with dealing REST based web services using Json. • Implemented exception handling in Java Spring boot for REST API, by making use of Exception Handler and Controller Advice annotations. • Expertise in databases such as Oracle, MySQL, databases to manage tables, views, indexes, sequences, stored procedures, functions, triggers and packages. • Strong experience in using Jenkins as continuous Integration tool and Maven, Ant for dependency management and GIT/SVN for version control.
If you're looking for immediate online assistance from Cassandra NoSQL Database experts, you can get Cassandra NoSQL Database programming help within 6 minutes on Codementor.
Why choose Arc to hire freelance Cassandra NoSQL Database developers
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In today’s world, most companies have code-based needs that require developers to help build and maintain. For instance, if your business has a website or an app, you’ll need to keep it updated to ensure you continue to provide positive user experiences. At times, you may even need to revamp your website or app. This is where hiring a developer becomes crucial.
Depending on the stage and scale of your product and services, you may need to hire a Cassandra NoSQL Database developer, multiple developers, or even a full remote developer team to help keep your business running. If you’re a startup or a company running a website, your product will likely grow out of its original skeletal structure. Hiring full-time remote Cassandra NoSQL Database developers can help keep your website up-to-date.
How do I hire Cassandra NoSQL Database developers?
To hire a Cassandra NoSQL Database developer, you need to go through a hiring process of defining your needs, posting a job description, screening resumes, conducting interviews, testing candidates’ skills, checking references, and making an offer.
Arc offers three services to help you hire Cassandra NoSQL Database developers effectively and efficiently. Hire full-time Cassandra NoSQL Database developers from a vetted candidates pool, with new options every two weeks, and pay through prepaid packages or per hire. Alternatively, hire the top 2.3% of expert freelance Cassandra NoSQL Database engineers in 72 hours, with weekly payments.
If you’re not ready to commit to the paid plans, our free job posting service is for you. By posting your job on Arc, you can reach up to 350,000 developers around the world. With that said, the free plan will not give you access to pre-vetted Cassandra NoSQL Database developers.
Furthermore, we’ve partnered with compliance and payroll platforms Deel and Remote to make paperwork and hiring across borders easier. This way, you can focus on finding the right Cassandra NoSQL Database developer for your company, and let Arc handle the logistics.
Where do I hire the best remote Cassandra NoSQL Database developers?
There are two types of platforms you can hire Cassandra NoSQL Database programmers from: general and niche marketplaces. General platforms like Upwork, Fiverr, and Gigster offer a variety of non-vetted talents unlimited to developers. While you can find Cassandra NoSQL Database developers on general platforms, top tech talents generally avoid general marketplaces in order to escape bidding wars.
If you’re looking to hire the best remote Cassandra NoSQL Database developers, consider niche platforms like Arc that naturally attract and carefully vet their Cassandra NoSQL Database developers for hire. This way, you’ll save time and related hiring costs by only interviewing the most suitable remote Cassandra NoSQL Database developer candidates.
Some factors to consider when you hire Cassandra NoSQL Database developers include the platform’s specialty, developer’s geographical location, and the service’s customer support. Depending on your hiring budget, you may also want to compare the pricing and fee structure.
Make sure to list out all of the important factors when you compare and decide on which remote developer job board and platform to use to find Cassandra NoSQL Database developers for hire.
How do I write a Cassandra NoSQL Database developer job description?
Writing a good Cassandra NoSQL Database developer job description is crucial in helping you hire Cassandra NoSQL Database programmers that your company needs. A job description’s key elements include a clear job title, a brief company overview, a summary of the role, the required duties and responsibilities, and necessary and preferred experience. To attract top talent, it's also helpful to list other perks and benefits, such as flexible hours and health coverage.
Crafting a compelling job title is critical as it's the first thing that job seekers see. It should offer enough information to grab their attention and include details on the seniority level, type, and area or sub-field of the position.
Your company description should succinctly outline what makes your company unique to compete with other potential employers. The role summary for your remote Cassandra NoSQL Database developer should be concise and read like an elevator pitch for the position, while the duties and responsibilities should be outlined using bullet points that cover daily activities, tech stacks, tools, and processes used.
What skills should I look for in a Cassandra NoSQL Database engineer?
The top five technical skills Cassandra NoSQL Database developers should possess include proficiency in programming languages, understanding data structures and algorithms, experience with databases, familiarity with version control systems, and knowledge of software testing and debugging.
Meanwhile, the top five soft skills are communication, problem-solving, time management, attention to detail, and adaptability. Effective communication is essential for coordinating with clients and team members, while problem-solving skills enable Cassandra NoSQL Database developers to analyze issues and come up with effective solutions. Time management skills are important to ensure projects are completed on schedule, while attention to detail helps to catch and correct issues before they become bigger problems. Finally, adaptability is crucial for Cassandra NoSQL Database developers to keep up with evolving technology and requirements.
What kinds of Cassandra NoSQL Database programmers are available for hire through Arc?
You can find a variety of Cassandra NoSQL Database developers for hire on Arc! At Arc, you can hire on a freelance, full-time, part-time, or contract-to-hire basis. For freelance Cassandra NoSQL Database programmers, Arc matches you with the right senior developer in roughly 72 hours. As for full-time remote Cassandra NoSQL Database developers for hire, you can expect to make a successful hire in 14 days. To extend a freelance engagement to a full-time hire, a contract-to-hire fee will apply.
In addition to a variety of engagement types, Arc also offers a wide range of developers located in different geographical locations, such as Latin America and Eastern Europe. Depending on your needs, Arc offers a global network of skilled software engineers in various different time zones and countries for you to choose from.
Lastly, our remote-ready Cassandra NoSQL Database developers for hire are all mid-level and senior-level professionals. They are ready to start coding straight away, anytime, anywhere.
Why is Arc the best choice for hiring Cassandra NoSQL Database developers?
Arc is trusted by hundreds of startups and tech companies around the world, and we’ve matched thousands of skilled Cassandra NoSQL Database developers with both freelance and full-time jobs. We’ve successfully helped Silicon Valley startups and larger tech companies like Spotify and Automattic hire Cassandra NoSQL Database developers.
Every Cassandra NoSQL Database developer for hire in our network goes through a vetting process to verify their communication abilities, remote work readiness, and technical skills (both for depth in Cassandra NoSQL Database and breadth across the greater domain). Additionally, HireAI, our GPT-4-powered AI recruiter, enables you to get instant candidate matches without searching and screening.
Not only can you expect to find the most qualified Cassandra NoSQL Database engineer on Arc, but you can also count on your account manager and the support team to make each hire a success. Enjoy a streamlined hiring experience with Arc, where we provide you with the developer you need, and take care of the logistics so you don’t need to.
How does Arc vet a developer’s Cassandra NoSQL Database skills?
Arc has a rigorous and transparent vetting process for all types of developers. To become a vetted Cassandra NoSQL Database developer for hire on Arc, developers must pass a profile screening, complete a behavioral interview, and pass a technical interview or pair programming.
While Arc has a strict vetting process for its verified Cassandra NoSQL Database developers, if you’re using Arc’s free job posting plan, you will only have access to non-vetted developers. If you’re using Arc to hire Cassandra NoSQL Database developers, you can rest assured that all remote Cassandra NoSQL Database developers have been thoroughly vetted for the high-caliber communication and technical skills you need in a successful hire.
How long does it take to find Cassandra NoSQL Database developers on Arc?
Arc pre-screens all of our remote Cassandra NoSQL Database developers before we present them to you. As such, all the remote Cassandra NoSQL Database developers you see on your Arc dashboard are interview-ready candidates who make up the top 2% of applicants who pass our technical and communication assessment. You can expect the interview process to happen within days of posting your jobs to 350,000 candidates. You can also expect to hire a freelance Cassandra NoSQL Database programmer in 72 hours, or find a full-time Cassandra NoSQL Database programmer that fits your company’s needs in 14 days.
Here’s a quote from Philip, the Director of Engineering at Chegg:
“The biggest advantage and benefit of working with Arc is the tremendous reduction in time spent sourcing quality candidates. We’re able to identify the talent in a matter of days.”
How much does a freelance Cassandra NoSQL Database developer charge per hour?
Depending on the freelance developer job board you use, freelance remote Cassandra NoSQL Database developers' hourly rates can vary drastically. For instance, if you're looking on general marketplaces like Upwork and Fiverr, you can find Cassandra NoSQL Database developers for hire at as low as $10 per hour. However, high-quality freelance developers often avoid general freelance platforms like Fiverr to avoid the bidding wars.
When you hire Cassandra NoSQL Database developers through Arc, they typically charge between $60-100+/hour (USD). To get a better understanding of contract costs, check out our freelance developer rate explorer.
How much does it cost to hire a full time Cassandra NoSQL Database developer?
According to the U.S. Bureau of Labor Statistics, the medium annual wage for software developers in the U.S. was $120,730 in May 2021. What this amounts to is around $70-100 per hour. Note that this does not include the direct cost of hiring, which totals to about $4000 per new recruit, according to Glassdoor.
Your remote Cassandra NoSQL Database developer’s annual salary may differ dramatically depending on their years of experience, related technical skills, education, and country of residence. For instance, if the developer is located in Eastern Europe or Latin America, the hourly rate for developers will be around $75-95 per hour.
For more frequently asked questions on hiring Cassandra NoSQL Database developers, check out our FAQs page.
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