11+ RDF Jobs in Kolkata | RDF Job openings in Kolkata

The Knowledge Graph Architect is responsible for designing, developing, and implementing knowledge graph technologies to enhance organizational data understanding and decision-making capabilities. This role involves collaborating with data scientists, engineers, and business stakeholders to integrate complex data into accessible and insightful knowledge graphs.

Work you’ll do

1. Design and develop scalable and efficient knowledge graph architectures.

2. Implement knowledge graph integration with existing data systems and business processes.

3. Lead the ontology design, data modeling, and schema development for knowledge representation.

4. Collaborate with IT and business units to understand data needs and deliver comprehensive knowledge graph solutions.

5. Manage the lifecycle of knowledge graph data, including quality, consistency, and updates.

6. Provide expertise in semantic technologies and machine learning to enhance data interconnectivity and retrieval.

7. Develop and maintain documentation and specifications for system architectures and designs.

8. Stay updated with the latest industry trends in knowledge graph technologies and data management.

The Team

Innovation & Technology anticipates how technology will shape the future and begins building future capabilities and practices today. I&T drives the Ideation, Incubation and scale of hybrid businesses and tech enabled offerings at prioritized offering portfolio and industry interactions.

It drives cultural and capability transformation from solely services – based businesses to hybrid businesses. While others bet on the future, I&T builds it with you.

I&T encompasses many teams—dreamers, designers, builders—and partners with the business to bring a unique POV to deliver services and products for clients.

Qualifications and Experience

Required:

1. Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.

2. 6-10 years of professional experience in data engineering with Proven experience in designing and implementing knowledge graph systems.

3. Strong understanding of semantic web technologies (RDF, SPARQL, GraphQL,OWL, etc.).

4. Experience with graph databases such as Neo4j, Amazon Neptune, or others.

5. Proficiency in programming languages relevant to data management (e.g., Python, Java, Javascript).

6. Excellent analytical and problem-solving abilities.

7. Strong communication and collaboration skills to work effectively across teams.

Preferred:

1. Experience with machine learning and natural language processing.

2. Experience with Industry 4.0 technologies and principles

3. Prior exposure to cloud platforms and services like AWS, Azure, or Google Cloud.

4. Experience with containerization technologies like Docker and Kubernetes

Job Opening: FreeSWITCH Developer

Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata

Employment Type: Full-Time, Permanent

Shift: Day Shift

Experience: Minimum 4+ years in FreeSWITCH/VoIP Development

Responsibilities:

• Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
• Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
• Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
• Hands-on experience with RTP Proxy and routed audio conferences.
• Understanding of SDP Protocol offer/answer mechanism.
• Work with load testing tools for FreeSWITCH audio conferences.
• Deploy and manage multiple FreeSWITCH instances using load balancers.
• Debug issues using packet captures (Wireshark/Ngrep).
• Collaborate with mobile/API teams for integration and support.
• Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
• Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.

Qualifications:

• Bachelor’s degree in Engineering (B.Tech/MCA).
• 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
• Strong knowledge of Linux environments and command-line tools.
• Basic to intermediate SQL knowledge.
• Proficiency in scripting (Bash, Python, Perl) for automation.
• Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
• Excellent troubleshooting skills with ability to resolve complex technical issues.
• Strong problem-solving, communication, and collaboration skills.

Industry Preference:

• Travel (Preferred)
• Any Industry (Required)

We are seeking a dynamic and enthusiastic Sales Executive to support our business development efforts in the secure logistics and asset tracking sector. This role is ideal for someone early in their career, eager to learn, and ready to grow with an innovative tech-driven company.

Key Responsibilities:

• Assist in generating and following up on sales leads
• Support field and B2B client sales for logistics security solutions
• Build and maintain strong client and partner relationships
• Collaborate with technical and operations teams for custom requirements
• Maintain CRM records and sales documentation

Desired Skills & Attributes:

• Good communication and interpersonal skills
• Basic knowledge of electronics/IoT systems is a plus
• Willingness to travel if required
• Self-motivated and eager to grow in a startup environment

Candidates from Transport and logistics shall be preferred

We welcome aspiring Electronics Diploma students OR Fresh Graduates (UG/PG) or Final Year Students in any stream for a 6-month hands-on internship in the field of tech-enabled sales and smart logistics solutions. Interns will gain real-world experience in lead generation, client interactions, and supporting the sales cycle for our IoT-based tracking products and services.

Candidates who successfully complete the internship and demonstrate strong performance will be offered a regular full-time role within the company.

It is one of the leading TMT bar manufacturers and exporters in India. It is a well-known group that achieves a turnover of 3000 Cr per annum. The group is setting up a construction & architecture-oriented omni channel B2B & B2C platform. Merito, a curated talent platform is responsible to identify key resources for this project.

Job Location: Kolkatta

Job Description:

• 3-9 yrs experience in developing new features and user interfaces from wireframe models
• Ensuring the best performance and user experience of the application
• Fixing bugs and performance problems
• Writing clean, readable, and testable code
• Cooperating with back-end developers, designers, and the rest of the team to deliver well-architected and high-quality solutions
• Complete knowledge of Uploading app on google play store and Apple app store
• Through analytical skills to Recommend system solutions by comparing advantages and disadvantages of custom development and purchasing alternatives

Requirement

• extensive knowledge of mobile app development. This includes the whole process, from the first line of code to publishing in the store(s)
• Deep knowledge of Kotlin, Flutter,Android, iOS, etc.
• Proficiency with writing automated tests. depending on the libraries you use to test
• Familiarity with RESTful APIs and mobile libraries for networking
• Experience with profiling and debugging mobile applications
• Strong knowledge of architectural patterns - MVP, MVC, MVVM, and Clean Architecture -and the ability to choose the best solution for the app
•  Familiarity with Git
• Familiarity with push notifications
• Understanding mobile app design guidelines on each platform and being aware of their differences
• Proficiency in Kotlin/Java/Swift/Flutter/Dart

We are looking for a Mobile App Developer for one of the leading TMT bar manufacturers and exporters in India.

Please find below details for your reference :-

Role - Mobile App Developer

Exp - 3 to 8 years

Job Location - Kolkata

About the Company :-

Our Client is one of the leading TMT bar manufacturer and exporter in India. It is a well known group that achieves a turn over of 3000 Cr per annum. The group is setting a construction & architecture oriented omni channel B2B & B2C platform.

Roles & Responsibilities:

- 3-7 yrs of experience in developing new features and user interfaces from wireframe models.

- Ensuring the best performance and user experience of the application

- Fixing bugs and performance problems

- Writing clean, readable, and testable code

- Cooperating with back-end developers, designers, and the rest of the team to deliver well-architected and high-quality solutions

- Complete knowledge of the Uploading app on google play store and Apple app store

- Through analytical skills to Recommend system solutions by comparing advantages and disadvantages of custom development and purchase alternatives.

Requirements :-

- Extensive knowledge about mobile app development. This includes the whole process, from the first line of code to publishing in the store(s)

- Deep knowledge of Kotlin, Flutter,Android, iOS, etc.

- Proficiency with writing automated tests. depending on the libraries you use to test

- Familiarity with RESTful APIs and mobile libraries for networking

- Experience with profiling and debugging mobile applications

- Strong knowledge of architectural patterns - MVP, MVC, MVVM, and Clean Architecture and the ability to choose the best solution for the app

- Familiarity with Git

- Familiarity with push notifications

- Understanding mobile app design guidelines on each platform and being aware of their differences

- Proficiency in Kotlin/Java/Swift/Flutter/Dart

• Experience using AWS (that’s just common sense)
• Experience designing and building web environments on AWS, which includes working with services like EC2, ELB, RDS, and S3
• Experience building and maintaining cloud-native applications
• A solid background in Linux/Unix and Windows server system administration
• Experience using https://www.simplilearn.com/tutorials/devops-tutorial/devops-tools" target="_blank">DevOps tools in a cloud environment, such as Ansible, Artifactory, https://www.simplilearn.com/tutorials/docker-tutorial/what-is-docker-container" target="_blank">Docker, GitHub, https://www.simplilearn.com/tutorials/jenkins-tutorial/what-is-jenkins" target="_blank">Jenkins, https://www.simplilearn.com/tutorials/kubernetes-tutorial/what-is-kubernetes" target="_blank">Kubernetes, Maven, and Sonar Qube
• Experience installing and configuring different application servers such as JBoss, Tomcat, and WebLogic
• Experience using monitoring solutions like CloudWatch, ELK Stack, and Prometheus
• An understanding of writing Infrastructure-as-Code (IaC), using tools like CloudFormation or Terraform
• Knowledge of one or more of the most-used programming languages available for today’s cloud computing (i.e., SQL data, XML data, R math, Clojure math, Haskell functional, Erlang functional, Python procedural, and Go procedural languages)
• Experience in troubleshooting distributed systems
• Proficiency in script development and scripting languages
• The ability to be a team player
• The ability and skill to train other people in procedural and technical topics
• Strong communication and collaboration skills

As a special aside, an AWS engineer who works in DevOps should also have experience with:

• The theory, concepts, and real-world application of Continuous Delivery (CD), which requires familiarity with tools like AWS CodeBuild, AWS CodeDeploy, and AWS CodePipeline
• An understanding of automation

About Hamleys:

Hamleys is not just a Toy Store but an entire Toy experience. Currently there are more 125 stores in India and we are present in more than 20 countries. 365 days of play is the brand philosophy of Hamleys. At Hamleys we believe in giving our customers an Instore experience that helps him build memories for lifetime.

Job Title: Fun Consultant

Grade: A1

Role:

• Warmly welcome and approach each customer – customer’s inclination to shop starts right from the first step & eye contact.
• Believes and lives the attitude of “Sheer customer delight” – go beyond
• To efficiently adhere to all “company procedures and policies.”
• To work with the team to achieve award winning “customer service.”

Key Responsibilities:

• Contribute to achieve store KPIs.
• Utilize the knowledge of trends and guide each customer on “what suits better” – in line with the customer needs, individuality and product range.
• Believes and lives the attitude of “Sheer customer delight” – go beyond

Desired Skills & Abilities

• Superior understanding of Indian retailing and global trends.
• Good communication and interpersonal skills - understand customer needs
• Good at relationship building - conversion to sales
• Ability to follow brand and store guidelines
• Good operations experience – receiving stock, inventory keeping, cash handling etc.