Cassandra developer at TechChefs Software · Remote, remote · 4 - 8 years · ₹1L - ₹12L / yr · Bootstrapped · Remote friendly · Posted 21 Jan 2021
• Build data pipelines for structured/unstructured, real-time/batch, events/synchronous/asynchronous using MQ, Kafka, Steam processing using Java / Python
• Design the Data stores for Big Data systems with expertise in Cassandra, HBase
• Implementation of Indexing and Search using Elasticsearch
• Setup and Deployment of Cassandra, Elasticsearch clusters
Required Qualifications and Competencies:
• Strong hands-on experience with Cassandra, data modeling, data replication, clustering, indexing for handling for large data sets
• Experience with SQL, NoSQL, relational database design, and methods for efficiently retrieving data for Time Series Analytics
• Strong understanding of CQL, Data Modeling in-order to achieve highly performant data access
• Strong experience in data modeling in Cassandra to design efficient storage model to meet variety of business needs
• Should have Elasticsearch skill with significant experience working with large Elasticsearch clusters, cluster performance optimisation, capacity planning, enhancing monitoring capabilities for early issue detection, driving operational readiness and ongoing maintenance
• Strong hands-on experience of programming with Java / Python
• Ability to troubleshoot and investigate stability, performance issues

About TechChefs Software
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What we want to accomplish and why we need you?
Jio Haptik is an AI leader having pioneered AI-powered innovation since 2013. Reliance Jio Digital Services acquired Haptik in April 2019. Haptik currently leads India’s AI market having become the first to process 15 billion+ two-way conversations across 10+ channels and in 135 languages. Haptik is also a Category Leader across platforms including Gartner, G2, Opus Research & more. Recently Haptik won the award for “Tech Startup of the Year” in the AI category at Entrepreneur India Awards 2023, and gold medal for “Best Chat & Conversational Bot” at Martequity Awards 2023. Haptik has a headcount of 200+ employees with offices in Mumbai, Delhi, and Bangalore.
What will you do everyday?
As a backend engineer you will be responsible for building the Haptik platform which is used by people across the globe. You will be responsible for developing, architecting and scaling the systems that support all the functions of the Haptik platform. While you know how to work hard, you also know how to have fun at work and make friends with your colleagues.
Ok, you're sold, but what are we looking for in the perfect candidate?
Develop and maintain expertise in backend systems and API development, ensuring seamless integrations and scalable solutions, including:
- Strong expertise in backend systems, including design principles and adherence to good coding practices.
- Proven ability to enhance or develop complex tools at scale with a thorough understanding of system architecture.
- Capability to work cross-functionally with all teams, ensuring seamless implementation of APIs and solutioning for various tools.
- Skilled in high-level task estimation, scoping, and breaking down complex projects into actionable tasks.
- Proficiency in modeling and optimizing database architecture for enhanced performance and scalability.
- Experience collaborating with product teams to build innovative Proof of Concepts (POCs).
- Ability to respond to data requests and generate reports to support data-driven decision-making.
- Active participation in code reviews, automated testing, and quality assurance processes.
- Experience working in a scrum-based agile development environment.
- Commitment to staying updated with technology standards, emerging trends, and software development best practices.
- Strong verbal and written communication skills to facilitate collaboration and clarity.
Requirements*:
- A minimum of 5 years of experience in developing scalable products and applications.
- Must Have Bachelor's degree in Computer Engineering or related field.
- Proficiency in Python and expertise in at least one backend framework, with a preference for Django.
- Hands-on experience designing normalized database schemas for large-scale applications using technologies such as MySQL, MongoDB, or Elasticsearch.
- Practical knowledge of in-memory data stores like Redis or Memcached.
- Familiarity with working in agile environments and exposure to tools like Jira is highly desirable.
- Proficiency in using version control systems like Git.
- Strong communication skills and the ability to collaborate effectively in team settings.
- Self-motivated with a strong sense of ownership and commitment to delivering results.
- Additional knowledge of RabbitMQ, AWS/Azure services, Docker, MQTT, Lambda functions, Cron jobs, Kibana, and Logstash is an added advantage.
- Knowledge of web servers like Nginx/Apache is considered a valuable asset.
* Requirements is such a strong word. We don’t necessarily expect to find a candidate that has done everything listed, but you should be able to make a credible case that you’ve done most of it and are ready for the challenge of adding some new things to your resume.
Tell me more about Haptik
- On a roll: Announced major strategic partnership with Jio.
- Great team: You will be working with great leaders who have been listed in Business World 40 Under 40, Forbes 30 Under 30 and MIT 35 Under 35 Innovators.
- Great culture: The freedom to think and innovate is something that defines the culture of Haptik. Every person is approachable. While we are working hard, it is also important to take breaks to not get too worked up.
- Huge market: Disrupting a massive, growing chatbot market. The global market is projected to attain a valuation of US $0.94 bn by the end of 2024 progressing from US $0.11 bn earned in 2015.
- Great customers: Businesses across industries - Samsung, HDFCLife, Times of India are some that have relied on Haptik's Conversational AI solutions to engage, acquire, service and understand customers.
- Impact: A fun and exciting start-up culture that empowers its people to make a huge impact.
Working hard for things that we don't care about is stress, but working hard for something we love is called passion! At Haptik we passionately solve problems in order to be able to move faster and don't shy away from breaking things!
You have 3 to 14 yrs of software engineering & product delivery experience with strong
background in datastructures & algorithms
• You’ve proven software development credentials having successfully built complex
products
• You are experienced with one or more general programming languages (e.g. Java, C/C++,
Go). Ability to learn other coding languages as needed.
• You’ve proven software development credentials having successfully built complex
products
• You have a strong foundation in the fundamentals of computer science, with familiarity in
data structures, algorithms and a strong command of object-oriented principles.
• You have experience in one or more of the following areas: Server Backend, Distributed
and Parallel Systems, Full Stack Development (frontend and backend), Scalable Enterprise
Platforms and Applications, Application Security and Incident Management, Android,
iOS, and Machine Learning.
• You have a spark that separates you from the crowd and ability to think out of the box and
on your feet
• You possess multi-dimensional skills that make you a valuable co-worker in a fast,
changing and ambiguous environment
• You have the ability to learn other coding languages as needed real quick
• You are comfortable in working with a team that deals with ambiguity every day

Essential Duties and Responsibilities
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
Adhere to Experian policies and procedures
- Work under the Experian behaviors and values
- Facilitate and drive performance management processes
- Champion a culture where the fair treatment of customers is at the heart of the Experian business
- Ensure that by leading by example, you adhere to all regulatory requirements and apply appropriate controls in the interests of customers
- Through the adoption of a top down approach, demonstrate a culture where all our people understand their regulatory obligations, including what the fair treatment of customer’s means to them and our organization
Qualifications
- Should have years of experience in developing and supporting Java/J2EE based application
- Should provide consultation on new development, enhancements, bug fixes and deployment and involve in complete product life cycle
- Should undertake any development/coding activities that might require during project life cycle
- Should have good core java concept like Collection, Multi-Threading JDBC File handling etc.
- Should have experience in Spring, Spring Boot, JPA, Hibernate
- Should have experience in Web service testing tool like SOAP UI, PostMan
- Should have working experience with database like Oracle, MSSQL Server, MySQL
- Should have enriched experience in client interfacing
- Should have good communication skills
Technologies
- Java, Java EE
- Spring, Spring Boot, JPA, Hibernate
- Java Multi-Threading
- Web service using SOAP/REST
- JIRA, Confluence, Bitbucket
- Oracle, SQL Server, MySQL
- WebLogic, Tomcat , JBOSS
Job Description
Qualifications
MCA or B.E/B.Tech
Experience
3+ years
Core Skill Sets:
1) Core Programming Language: JAVA 8
o Good command on basics/core.
o Sound knowledge of OOPS concept.
o Practical implementation using Collections.
o Problem solving skills using Collections/Java Beans/OOPS concept.
Web Scripting Language: JavaScript, JQuery, HTML 5
Web Programming Language: J2EE
o Knowledge of MVC architecture.
o Able to design a basic web-application using MVC architecture including database usage.
2) Database: Preferably Oracle/MySql
o Able to write sql queries.
o Knowledge of sql joins.
o Knowledge of some basic sql functions.
o Basic idea of stored procedures.
Additional Skill Sets:
XML/JSON/CSV
o Knowledge of reading/writing XML/JSON/CSV documents.
Web-service
o Knowledge of writing web-service (REST Full).
Web Framework
o Struts 2/Spring.
Database Framework
o Hibernate (using Spring JPA would be preferable).
Maven
3) Web/Application Server: Apache/Tomcat/JBoss/Weblogic/Websphere
o Basic experience of working/deployment on J2EE servers.
4) OS Platform: Windows/Linux.
5) Development Tool: Eclipse.
Purpose of the Position:
The employee would be responsible to build core and web-based applications having technical
implementation of XBRL/SDMX concept.
The employee would be responsible to write sql/procedures for the core/web-based application.
The employee would get a deep exposure on working with very good volume of data having such
database architecture capable of handling the same.
The employee would be responsible to build various web-services to be used by language
independent applications.
The employee would be very much responsible to work on standard technology in various parts
of the project.
About IRIS:
IRIS Business Services Limited is one of the first providers of full professional XBRL products and solutions to organizations globally. The company headquartered in Mumbai, India with international offices in United States, Singapore, United Kingdom, and the UAE.
IRIS is a direct member of XBRL International and XBRL US. The Company has over eighteen years of proven expertise in the financial information management space, providing customized technology solutions for data and content management, for the dissemination of information to investors and stock exchanges, and for effective content management to institutional clients.
Over the last seven years, IRIS has been very closely involved in the XBRL space, in taxonomy creation, software solutions and in the conversion of structured and unstructured data into XBRL for SEC filing in the US. IRIS has multidisciplinary skills in XBRL as well as in technology. Taxonomy experts, software engineers, business analysts and accountants come together to provide a complete range of products and services across the XBRL supply chain.
For more information, please visit http://www.irisbusiness.com
- Experience with Hybris 6.x/ 1905/ 2005 with knowledge of Hybris B2C-ACCELERATOR/HYBRIS -B2B-ACCELERATOR, Hybris back- office, Hybris Frontend WCMS cockpit, product cockpit, Hybris core, Hybris Commerce, Hybris Search, Hybris OCC, Solr Customization
- Experience working on core Java, JSP/Servlets, JEE, Spring, Services (SOAP, REST), Design Patterns, Apache, Tomcat, Build Tools- Ant/Maven/Jenkins, SCM Tools - CVS/SVN/ GIT Hub
- Knowledge of one or more modules HYBRIS-PIM, HYBRIS-PROMOTIONS, HYBRIS-OMS, HYBRIS -TRAVEL-ACCELERATOR
- Additional skills in SOA, ESB, JMS
- Knowledge of high-quality professional software engineering practices for agile software development cycle, including coding standards, code reviews, source control management, build processes, testing, and deployment
- Experience in eCommerce/Hybris payment integration, 3rd Party integration development.
- Preferable to have development experience in Spartacus Hybris module.
- Preferable to have exposure to Azure cloud (Hybris CCV2)
- Fundamental knowledge of design patterns.
- Experience in communicating effectively with users, other technical teams, and management to collect requirements, describe software product features and technical designs
- Passionate about building great solutions
- Mentoring the team members to meet the clients’ needs and holding them accountable for high standards of delivery
- Willing to work in Shifts to support Production environment and Samsung.com Global eCommerce client requests.
About Increasingly
Increasingly is an award-winning, fast-growing retail technology company focused specifically on the automation of cross-selling for online retailers.
Our clients include large global corporations like Samsung, Motorola & Canon to several small to medium size retailers across the globe. Our AI-based algorithms help a customer buying a TV on Samsung to find the matching sound bar & purchase both together.
Increasingly is headquartered in London with offices in Lisbon & Bangalore. We work with clients in over 30 countries & 20 languages.
We are looking to rapidly expand our technology & product development operations in India. And we need smart, ambitious people like you who enjoy a fun yet challenging work environment.
We believe strongly that diversity & inclusion are the foundations for a lasting, incredible culture. We also believe that it’s important to get the balance right between work & life.
The job and its impact
- You possess an appetite for problem-solving and critical thinking
- Back-end development is an inherently collaborative task. It can be made very difficult if there isn’t clear and concise communication within a dev team. You are a great communicator and a great developer
- You are always looking for new ways to be a better developer. You put an effort into learning and exploring the world of back-end development in your own time
- The back-end development sphere is as changeable and unpredictable as any in tech. You are someone who achieves comfort in You are aware of the tools and new technologies that are being introduced.
- You possess good technical communication skills: Can effectively communicate project needs with both front and back-end teammates
- High emotional intelligence: Self-aware and attuned to their peers’needs
- Be the best back-end developer by sheer discipline, motivation, and effort
What essential skills you need
- 2-3.5 years’ experience in back end Java/J2EE application development with clear understanding of Microservices
- Experience in developing internet web applications using Java/J2EE technologies
- Experience in different modules of Spring framework like Dependency Injection (IoC), Spring MVC, Spring ORM along with JPA
- Experience in Java Version 0+. Good experience with JMS, Spring & Hibernate
- Experience in identifying database solutions for a given problem, preferably MySQL (good to have)
- Develop well-structured, maintainable code, delivered on time, with automated tests. We are an XP/Agile development team
- Hands on experience in using Application/Web servers like JBoss and Tomcat servers. Worked on databases like Oracle & MYSQL
- Experience with e-commerce, retail, analytics, advertising, or media would be an
What are the benefits
- You'll get to work in one of the hottest & fastest growing retail technologies in Europe right now
- You'll get paid a competitive salary & be working directly with a super experienced team of people
- You'll get a great place to come to work every day. Varied, complex, challenging & with a great culture that you can shape & change
Increasingly in the press & our awards
Forbes I https://junction.cj.com/article/increasingly-talks-tech-cju17">Commission Junction Blog I https://blog.rakutenmarketing.com/en-uk/news/technology-partner-increasingly-on-innovationand-the-value-of-dynamic-cross-selling/">Rakuten Blog I https://www.tradedoubler.com/en/blog/introducing-increasingly-market-leader-dynamic-crossselling/">Tradedoubler Blog
2. Experience with Microservices Architectures
3. Experience with RESTful and Stateless services
4. Broad and deep knowledge of design patterns and algorithms
Job Description
- Contribute in all phases of the development lifecycle
- Understand/learn the existing applications
- Provide support on IT Applications to customers
- Prepare and produce build release
- Strive for continuous improvement, developing well designed and efficient code
- Keep up with changes in technology and propose solutions
- Ensure defect free deliveries by actively participating in quality assurance
Education & Job Qualification
- Good academic qualifications
- Experience in developing web applications using Java, Spring, Hibernate, DWR, JSP
- Knowledge in Oracle Database concepts
- Sound knowledge in the following is a must
o Hibernate
o Spring
o Oracle & MongoDb
o HTML & CSS
o Javascript
o Jquery
o Angular 4
o Node JS
Knowledge of Japer Reports will be an added advantage - Good communication skills and be a good listener
- Problem solving skills
- Willingness to learn and do all development activities including quality assurance
- Team player








