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

We’re Hiring: Customer Support Executive – International (Voice & Chat)

Location: Kolkata

Shifts: Rotational (Day/Night)

Experience: 1–3 Years

Department: Customer Support / Operations

Job Summary:

We are looking for dynamic professionals to join our International Contact Centre team & Chat. If you have strong communication skills and Fluent in English & Hindi (mandatory) with experience in BPO/KPO or international call center handling global customers via voice and chat this role is for you.

Key Responsibilities:

·      Own end-to-end customer interactions across voice and chat (international & domestic)

·      Deliver quick, accurate, and high-quality responses with a customer-first approach

·      Resolve queries and issues proactively with clear follow-through

·      Maintain clean and structured documentation

·      Ensure high service standards, customer satisfaction,

·      Operate with discipline by following SOPs, quality benchmarks, and processes

·      Stay flexible and aligned with global time zones and dynamic operational needs

Required Skills & Qualifications:

·      1–3 years of experience in customer support (voice and/or chat process)

·      Excellent verbal and written communication skills

·      Strong problem-solving and multitasking abilities

·      Ability to handle pressure and manage difficult customers professionally

·      Basic computer knowledge (MS Office, typing skills)

·      Good listening skills and attention to detail

·      Ability to work in rotational shifts (including night shifts) and rotational week offs

Preferred Qualifications:

• Experience in BPO/KPO or international call center environment
• Exposure to global customer handling and cultural sensitivity

Shift Timings:

·       Day Shift: 11am – 9pm

·       Night Shift: 9pm – 7am

6 days Working (Rotational week-offs)

We are looking for a Senior Quality Assurance Engineer who is passionate about delivering high-quality software products. You will be responsible for ensuring that our applications meet business and technical requirements through effective testing strategies, automation, and collaboration with development teams.

 Key Responsibilities

• Design, develop, and execute test plans, test cases, and test scripts.
• Perform manual and automated testing for web and mobile applications.
• Identify, report, and track bugs using bug-tracking tools.
• Work closely with developers, product managers, and stakeholders to ensure quality delivery.
• Conduct regression, functional, integration, and performance testing.
• Improve QA processes and testing standards across projects.
• Mentor junior QA team members when required.
• Ensure timely delivery with high product quality.

🛠 Required Skills & Qualifications

• Minimum 3+ years of experience in Software Testing / Quality Assurance.
• Strong knowledge of Manual Testing and Automation Testing.
• Experience with tools like Selenium, Cypress, Postman, JMeter, etc.
• Understanding of SDLC, STLC, Agile methodologies.
• Experience in API testing and database testing is a plus.
• Good communication and problem-solving skills.
• Ability to work from office and collaborate with cross-functional teams.

⭐ Good to Have

• Experience with CI/CD pipelines.
• Knowledge of performance and security testing.
• Exposure to cloud platforms is a plus.

💼 What We Offer

• Work from Office environment with a collaborative culture.
• Opportunity to work on real-world, scalable products.
• Learning and growth opportunities.

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’re hiring a Full Stack Developer with strong hands-on experience in Java, Spring Boot, and Angular to join our growing tech team.

🔧 What You'll Do

• Design and develop scalable full stack web applications
• Write clean, maintainable code using Java (Spring Boot) and Angular
• Collaborate with cross-functional teams to deliver high-quality features
• Optimize applications for performance and security
• Participate in code reviews and technical discussions

✅ What We’re Looking For

• 5+ years of professional experience in full stack development
• Strong expertise in Java, Spring Boot, and Angular
• Solid understanding of REST APIs, Microservices, and frontend integration
• Knowledge of databases and version control (Git)
• Excellent problem-solving and communication skills
• Immediate joiners are highly preferred

Contact - Subhra

They consult with clients to determine the scope of website development projects, implement SEO strategies to increase traffic flow to websites, and maintain websites.

To manage customer queries and cold calling for a B2B Website Process in International Market.

Will be responsible for new business development (Acquiring new business ) and maintain relationship with new and existing clients.

Would be dealing in Web/Mobile App and Digital Marketing Domain.

Preparing progress updates and documenting website development processes.

Desired Candidate Profile

Fluency in English is mandatory

Should have minimum 6 months experience in Website process.

Basic knowledge in computer operation.

Learning mindset.

Perks and Benefits

Five days working, saturday & sunday fixed off

Fixed Salary with huge incentive

Growth Opportunity Skills:- Communication Skills, Outbound marketing and International sales

The job responsibilities include:

• Assist in establishing email marketing for our brand.
• Create automations and user journeys
• Manage day-to-day email production including campaign creation, QA and deployment.
• Assist in management of the growth and maintenance of the email database – including new sign-ups and opt-outs
• Help manage reporting on email metrics and produce insights to ensure our program continuously improves
• Manage email production with internal and external resources
• Participate in the production of all email initiatives from conception to deployment
• Assist in copywriting and editing of email content
• Perform daily engagement activities on social media channels
• Create a community of pet owners & enthusiasts across social media channels
• Responsible for organic growth of social media outreach
• Bring in fruitful PR collaboration & engagement ideas to build a recall value of the brand digitally