11+ Network Security Jobs in Kolkata | Network Security Job openings in Kolkata

• OWASP Secure Code review,• Basic programing knowledge in any programming language and knowledge on secure development practices.
• OWASP TOP 10 vulnerabilities and their mitigations
• Hands on experience in Web Application Security Testing tools (SAST & DAST) and Penetration testing tools such as HP Fortify, Checkmarx, Acunetix, Nessus, Burp Suite, Metasploit., Qualys Guard, Kali Linux , etc.
• Understand/modify exploit code and find logical security flaws in applications
• Should have knowledge and experience on Network Security, Application Security, Internet Security, attack vectors.
• To carry out technical vulnerability assessments, identify potential vulnerabilities and provide recommended controls and support to mitigate them.

SENIOR DATA ENGINEER:

ROLE SUMMARY:

Own the design and delivery of petabyte-scale data platforms and pipelines across AWS and modern Lakehouse stacks. You’ll architect, code, test, optimize, and operate ingestion, transformation, storage, and serving layers. This role requires autonomy, strong engineering judgment, and partnership with project managers, infrastructure teams, testers, and customer architects to land secure, cost-efficient, and high-performing solutions.

RESPONSIBILITIES:

• Architecture and design: Create HLD/LLD/SAD, source–target mappings, data contracts, and optimal designs aligned to requirements.
• Pipeline development: Build and test robust ETL/ELT for batch, micro-batch, and streaming across RDBMS, flat files, APIs, and event sources.
• Performance and cost tuning: Profile and optimize jobs, right-size infrastructure, and model license/compute/storage costs.
• Data modeling and storage: Design schemas and SCD strategies; manage relational, NoSQL, data lakes, Delta Lakes, and Lakehouse tables.
• DevOps and release: Establish coding standards, templates, CI/CD, configuration management, and monitored release processes.
• Quality and reliability: Define DQ rules and lineage; implement SLA tracking, failure detection, RCA, and proactive defect mitigation.
• Security and governance: Enforce IAM best practices, retention, audit/compliance; implement PII detection and masking.
• Orchestration: Schedule and govern pipelines with Airflow and serverless event-driven patterns.
• Stakeholder collaboration: Clarify requirements, present design options, conduct demos, and finalize architectures with customer teams.
• Leadership: Mentor engineers, set FAST goals, drive upskilling and certifications, and support module delivery and sprint planning.

REQUIRED QUALIFICATIONS:

• Experience: 15+ years designing distributed systems at petabyte scale; 10+ years building data lakes and multi-source ingestion.
•  Cloud (AWS): IAM, VPC, EC2, EKS/ECS, S3, RDS, DMS, Lambda, CloudWatch, CloudFormation, CloudTrail.
• Programming: Python (preferred), PySpark, SQL for analytics, window functions, and performance tuning.
• ETL tools: AWS Glue, Informatica, Databricks, GCP DataProc; orchestration with Airflow.
• Lakehouse/warehousing: Snowflake, BigQuery, Delta Lake/Lakehouse; schema design, partitioning, clustering, performance optimization.
• DevOps/IaC: Terraform with 15+ years of practice; CI/CD (GitHub Actions, Jenkins) with 10+ years; config governance and release management.
• Serverless and events: Design event-driven distributed systems on AWS.
• NoSQL: 2–3 years with DocumentDB including data modeling and performance considerations.
• AI services: AWS Entity Resolution, AWS Comprehend; run custom LLMs on Amazon SageMaker; use LLMs for PII classification.

NICE-TO-HAVE QUALIFICATIONS:

• Data governance automation: 10+ years defining audit, compliance, retention standards and automating governance workflows.
• Table and file formats: Apache Parquet; Apache Iceberg as analytical table format.
• Advanced LLM workflows: RAG and agentic patterns over proprietary data; re-ranking with index/vector store results.
• Multi-cloud exposure: Azure ADF/ADLS, GCP Dataflow/DataProc; FinOps practices for cross-cloud cost control.

OUTCOMES AND MEASURES:

• Engineering excellence: Adherence to processes, standards, and SLAs; reduced defects and non-compliance; fewer recurring issues.
• Efficiency: Faster run times and lower resource consumption with documented cost models and performance baselines.
• Operational reliability: Faster detection, response, and resolution of failures; quick turnaround on production bugs; strong release success.
• Data quality and security: High DQ pass rates, robust lineage, minimal security incidents, and audit readiness.
• Team and customer impact: On-time milestones, clear communication, effective demos, improved satisfaction, and completed certifications/training.

LOCATION AND SCHEDULE:

●      Location: Outside US (OUS).

●      Schedule: Minimum 6 hours of overlap with US time zones.

Node JS Developer

We are looking for a Node JS Developer to join our team.

In this role, you will be entrusted with developing JavaScript applications using Node.js(NestJs framework).

Apply now for the role of a Node JS Developer at Codebuddy which is opening doors for skilled, energetic developers looking for Node JS Developer Jobs.

If you can help us design and create multiple layers of applications while working cross-functionally across different infrastructures and if you love problem-solving, Designing systems, and creating quality offerings, you would fit perfectly in Codebuddy.

Responsibilities:

• Developing and maintaining all server-side network components.
• Ensuring optimal performance of the central database and responsiveness to front-end requests.
• Collaborating with front-end developers on the integration of elements.
• Designing back-end services for various business processes.
• Developing high-performance applications by writing testable, reusable, and efficient code.
• Implementing effective security protocols, data protection measures, and storage solutions.
• Running diagnostic tests, repairing defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Recommending and implementing improvements to processes and technologies.
• Keeping informed of advancements in the field of Node.js development.
• Analyze requests for enhancements/changes and write amendment/program specifications.
• Understand the inter-dependencies of the service (application, system, and database) and be able to pinpoint problem areas accurately to improve overall efficiency.
• Translate storyboards and various use cases to create high-performing apps
• Help in code automation
• 
  

What You Need To Apply (Technical Competency) :

• Bachelor's degree in computer science, information science, or similar.
• Minimum two years of experience as a Node.js developer.
• Minimum 6 months of hands-on experience with TypeScript.
• Basic knowledge of NestJs and ExpressJs.
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
• Knowledge of MongoDB.
• Knowledge of front-end technologies such as HTML5 and CSS3.
• Basics of Linux commands and basic Git knowledge for everyday workflow.
• Superb interpersonal, communication, and collaboration skills.
• Exceptional analytical and problem-solving aptitude.
• Great organizational and time management skills.
• Availability to resolve urgent web application issues outside of business hours.
• Self-motivated with the ability to work independently or jointly in a self-directed way.

Job Title - Sr Software Developer

Location - Sector 5 , Salt Lake

Shift Timings - 2:15 PM to 11:30 PM

Week Off - All Sundays and Alternate Saturdays. Sat will be halfday

Job brief:

We are looking for a Senior Software Developer specializing in .Net to build software using languages and technologies of the .NET framework.You should be a pro with third-party API integration and application programming.

In this role, you should be able to write smooth & functional code with a sharp eye for spotting defects. You should be a team player and an excellent communicator. If you are also passionate about the .NET framework and software design/architecture, we’d like to meet you.

Your goal will be to work with internal teams to design, develop and maintain software.

Job Responsibilities:

• Work in a development team to develop integrated ASP.NET applications.

• Write clean, scalable code using ASP.NET Framework, programming language (C#), and Rest API.

• Write SQL Server Queries and normalize SQL table structure.

• Revise, update,refactor and debug code.

• Improve existing software

• Develop documentation throughout the software development lifecycle (SDLC)

• Serve as an expert on applications and provide technical support

Job Requirements:

• Required at least 4 years of Software development using C# .NET.

• Good Knowledge of SQL Server, and design/architectural patterns for .NET Framework Web Application)

• Good Knowledge on Bootstrap, jQuery, HTML, CSS3 and XML

• Familiarity with architecture styles/APIs (REST, Web API, Json)

• Excellent troubleshooting and communication skills

• BSc/BA in Computer Science, Engineering, or a related field

CTC, Bonuses & Rewards: -

Salescom Services Private Limited is an equal opportunity employer in the local industry.Our operations and company visions are quite a niche and heavily focused on being massively successful operations engaged in next-generation sales & marketing wins, support, and information technology-enabled services & solutions. CTC for the right employee is not pre-defined as such however will be a best-fit match to the local industry standards. Come, interview with us, figure out if we both are the right fit for each other, and the rest will follow suit.

Interested candidates are requested to apply for this job

• Preparing and designing rough draft illustrations according to client specifications.
• Creating complete illustrations by combining painting, hand-drawn and digitally created images.
• Refining image design using illustration software.
• Enhancing the design concept using a wide range of colours and graphics.

Requirements:

CANDIDATE MUST BE FROM KOLKATA LOCATION

MUST HAVE Good Communication skills

COMFORTABLE WITH NIGHT SHIFT

• Proven work experience as an Illustrator, Graphic Designer or similar role
• Demonstrable portfolio of completed illustrations
• A strong portfolio of digital illustration work
• Solid knowledge of Adobe Illustrator
• Strong aesthetic and conceptual skills
• Ability to collaborate and meet deadlines

Salary: 30,000/- to 40,000/-

Minimum 2 years of working experience.

Can work on live projects of international clients.

Can handle multiple projects

Error-free coding.

Required Experience, Skills and Qualifications

Objective-C, or increasingly, the Swift 3.0 programming language

Apples Xcode IDE

Frameworks and APIs like Foundation, UIKit, and CocoaTouch

UI and UX design experience

Apple Human Interface Guidelines

2D and 3D graphics frameworks like SpriteKit and SceneKit

OpenGL or Metal, iOS graphics APIs

Familiarity with iOS 10 and newer OS versions

A Git code repository technology

Strong Objective-C skills and inside-and-out knowledge of the iOS SDK.

Experience using and creating scalable web-based Restful APIs.

👋🏼We're Nagarro.

We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale across all devices and digital mediums, and our people exist everywhere in the world (19000+ experts across 33 countries, to be exact). Our work culture is dynamic and non-hierarchical. We are looking for great new colleagues. That is where you come in!

REQUIREMENTS:

• Experience: 4.1-7 years
• Must have Skills: JavaScript ES6, MySQL, RabbitMQ, Redis, Node JS
• Strong technical background with node.js, event loop understanding, unit testing, developing web application & APIs, event & stream, call-back & closures, promise, async/await, accessing file system, Optimization techniques.
• Strong experience in JavaScript, Express.js, GraphQL
• Strong knowledge of REST, microservices, cloud development and design patterns
• Comfortable using modern tools and platforms such as Docker, Jenkins, Gitlab CI, etc.
• Comfortable using agile methodologies.
• Understanding of different components such as web server, storages, integrations
• Should have worked on designing and building server-side solutions (in any technology), build process of node.js, CI/CD process of node.js, multi-tasking (working on multiple things at same time)
• Good knowledge of functional and Object-Oriented Programming
• Implementing effective security protocols, data protection measures, and storage solutions.
• Running diagnostic tests, repairing defects, and providing technical support.
• Recommending and implementing improvements to processes and technologies.
• Keeping informed of advancements in the field of Node.js development.
• Familiarity with Azure pipeline
• Should have experience in Identifying software application weaknesses and target areas and sketching out ideas for automated software test procedures. Reviewing software bug reports and highlighting problem areas.
• 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.
• 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.
• Mentoring the team members to meet the client's needs and holding them accountable for high standards of delivery.
• Being able to understand and relate technology integration scenarios and be able to apply these learnings in complex troubleshooting scenarios.

RESPONSIBILITIES:

• Writing and reviewing great quality code
• Understanding functional requirements thoroughly and analysing the client’s needs in the context of the project.
• Envisioning the overall solution for defined functional and non-functional requirements, and being able to define technologies, patterns, and frameworks to realize it.
• Determining and implementing design methodologies and tool sets
• Enabling application development by coordinating requirements, schedules, and activities.
• Being able to lead/support UAT and production roll outs.
• Creating, understanding, and validating WBS and estimated effort for given module/task, and being able to justify it.
• Addressing issues promptly, responding positively to setbacks and challenges with a mindset of continuous improvement
• Giving constructive feedback to the team members and setting clear expectations.
• Helping the team in troubleshooting and resolving of complex bugs
• Coming up with solutions to any issue that is raised during code/design review and being able to justify the decision taken.
• Carrying out POCs to make sure that suggested design/technologies meet the requirements.

Skills and requirements

• Experience analyzing complex and varied data in a commercial or academic setting.
• Desire to solve new and complex problems every day.
• Excellent ability to communicate scientific results to both technical and non-technical team members.

Desirable

• A degree in a numerically focused discipline such as, Maths, Physics, Chemistry, Engineering or Biological Sciences..
• Hands on experience on Python, Pyspark, SQL
• Hands on experience on building End to End Data Pipelines.
• Hands on Experience on Azure Data Factory, Azure Data Bricks, Data Lake - added advantage
• Hands on Experience in building data pipelines.
• Experience with Bigdata Tools, Hadoop, Hive, Sqoop, Spark, SparkSQL
• Experience with SQL or NoSQL databases for the purposes of data retrieval and management.
• Experience in data warehousing and business intelligence tools, techniques and technology, as well as experience in diving deep on data analysis or technical issues to come up with effective solutions.
• BS degree in math, statistics, computer science or equivalent technical field.
• Experience in data mining structured and unstructured data (SQL, ETL, data warehouse, Machine Learning etc.) in a business environment with large-scale, complex data sets.
• Proven ability to look at solutions in unconventional ways. Sees opportunities to innovate and can lead the way.
• Willing to learn and work on Data Science, ML, AI.

• SAP Real Estate Management (SAP REM)/ RE-FX
• SAP REM – need a very strong senior-level SAP Real Estate experience immediately
• Should be able to identify, design and configure SAP Real Estate management. Can act as a lead and run client workshops. # of resources required = 1
• SAP Flexible Real Estate Management (REFX) module – configuration and enhancement, integration with SAP FI/CO/PM/PS, Record & Case Management, reporting in BW system.
• Integration of RE-FX/FI-AA/PM with Geo enablement & maps.
• ABAP development: SAP Data Dictionary, SAP Functions (local and RFC), BAPI, custom ALV reports and data upload programs, User Exits, BAdI, Adobe PDF forms.

At CLIRNET, we want to empower Doctors with progressive tools and services to deliver quality patient care which is accessible, affordable and equitable. CLIRNET is already a leader in this space, with over 2 Lakh registered physicians regularly using the platform. CLIRNET is now building a product in the video streaming OTT space for knowledge delivery. This position will have a role in ideating, researching and giving shape to this video streaming OTT platform.

Objectives of this Role :

- Drive the product planning process across cross-functional teams of the company

- Analyze product requirements and develop appropriate programs to ensure they're successful achieved

- Develop, implement, and maintain product timelines across multiple departments

- Appraise new product ideas and strategize appropriate to-market plans

Daily and Monthly Responsibilities :

- Drive the execution of all product lifecycle processes for products, including product research, market research, competitive analysis, planning, positioning, roadmap development, requirements development, and product launch

- Translate product strategy into detailed requirements for prototype construction and final product development by engineering teams

- Manage the product development process from conception through design, build, release, analysis, and iteration

- Be a critical voice of the user within CLIRNET.

- Create product strategy documents that describe business cases, high-level use cases, technical requirements, revenue, and ROI

- Analyze market data to develop marketing strategies, and define product objectives for effective marketing communications plans

- Collaborate closely with engineering, production, marketing, and sales teams on the development, QA, and release of products and balance of resources to ensure success for the entire organization

Skills and Qualifications :

- 2-4 years of experience in product in a B2C consumer internet company with a background in technical product management or web engineering.

- Strong quantitative capabilities, and experience using analytics platforms to understand product usability.

- Familiarity with APIs, documentation, web system architecture

- An understanding of what makes for good user experience and beautiful design.