11+ Microsoft Windows Jobs in Kolkata | Microsoft Windows Job openings in Kolkata

Position: Windows SRE

Responsibilities:

• Windows Site Reliability Engineer with experience in managing large websites where Millions of customers hit
• Manage and monitor all installed systems and infrastructure
• Install, configure, test and maintain operating systems, application software and system management tools
• Among your responsibilities will be the installation and configuration of storage, servers, Microsoft servers (Cluster Services, File Services, Active Directory Services, Certificate Authority services), Virtual Infrastructure (Hyper-V), IIS, MS SQL and backup system
• Proactively ensure the highest levels of systems and infrastructure availability
• Monitor and test application performance for potential bottlenecks, identify possible solutions, and work with developers to implement those fixes
• Maintain security, backup, and redundancy strategies
• Write and maintain custom scripts to increase system efficiency and lower the human intervention time on any tasks
• Participate in the design of information and operational support systems
• Provide 2nd and 3rd level support
• Liaise and collaborate with vendors and Zacks personnel for problem resolution, decision making, knowledge sharing

Requirements:

• Minimum 5+ years of Windows support experience, 7, 8, 10, and Microsoft Server (all)
• Windows server expertise
• Familiar with WAN/LAN technologies
• Understanding of the OSI model
• Virtualization - MS Hyper-V, VMware, vSan
• Strong understanding of Internet protocols including HTTP(S), SSL, TCP, IP
• MS IIS administration and configuration
• MS Active Directory
• MS Storage Space
• DNS and DHCP
• SSL certificates and PKI
• Familiar with the ITIL framework
• Strong PowerShell experience
• Information Security experience a plus Other Qualifications
• Excellent attention to detail

Experience: 8-10 years

Senior Python Developer to lead the development of scalable, high-performance backend systems and data-driven applications. You will work on building robust services, APIs, and data workflows that power real-time and batch applications.This role is ideal for a seasoned developer who thrives on solving complex problems, building reliable software, and working across data and engineering teams. Youll play a key role in designing and developing Python-based systems that interface with big data frameworks, cloud platforms, and analytics tools.Key Responsibilities

• Design and develop robust Python-based backend services and microservices.
• Build RESTful APIs and integrations with third-party systems and internal tools.
• Work with data workflows involving ingestion, transformation, and validation.
• Develop and maintain ETL/ELT pipelines using Python, SQL, and Airflow.
• Collaborate with DevOps teams to deploy, monitor, and scale applications in cloud environments (AWS, Azure, GCP).
• Optimize code for performance, scalability, and maintainability.
• Write unit and integration tests, participate in code reviews, and follow CI/CD best practices.
• Work with cloud storage, databases, and data lake technologies like S3, Parquet, and DuckDB.
• Collaborate with data scientists, analysts, and engineers to enable data access and modeling.

Required Skills & Qualifications

• 5+ years of experience in backend software development, primarily in Python.
• Strong understanding of OOP, modular design, and Python design patterns.
• Experience with web frameworks (e.g., Flask, FastAPI, Django).
• Hands-on experience with data processing tools like Pandas, SQLAlchemy, PyArrow.
• Proficiency with SQL and database technologies (PostgreSQL, DuckDB, etc.).
• Experience with Airflow for workflow orchestration.
• Knowledge of building scalable, distributed applications and microservices.
• Familiarity with cloud platforms (AWS, Azure, GCP) and containerization tools (Docker, Kubernetes).
• Solid understanding of version control (Git), testing frameworks (PyTest), and CI/CD pipelines.
• Excellent problem-solving, debugging, and communication skills.

Preferred Skills (Nice to Have)

• Experience with data processing frameworks like Apache Spark or Vaex.
• Familiarity with data storage formats and tools like Parquet, Iceberg.
• Exposure to data streaming platforms (Kafka, Kinesis, Flink).
• Experience integrating backend systems with AI/ML pipelines or BI platforms.
• Understanding of security standards and compliance (GDPR, HIPAA, SOC2).
• Background in metadata-driven or event-driven architectures.

Designation: Automation & IoT Engineer (Water Treatment)

Location: Kolkata

Experience: 5–7 years

Working Days & Hours: 6 days a week | 10:00 AM – 6:30 PM

Industry Focus:

⚡ Water Treatment Industry Only

Key Responsibilities:

• Design, implement, and maintain automation systems (SCADA, PLC, HMI) tailored for water treatment plants, ensuring seamless integration with existing infrastructure.
• Program and configure PLC/SCADA systems for process automation of pumps, valves, filters, dosing systems, chemical treatment, backwashing, sludge handling, and other water treatment operations.
• Integrate IoT-based real-time monitoring solutions including flow meters, pressure transmitters, water level sensors, and water quality instruments (pH, turbidity, TDS, conductivity, chlorine residual, etc.).
• Develop and configure data acquisition systems (DAQ) to collect, process, and analyze operational parameters, ensuring availability of accurate real-time and historical data.
• Set up dashboards and cloud-based remote monitoring platforms for centralized control, reporting, and decision-making across multiple plant sites.
• Ensure reliable industrial communication protocols (Modbus RTU/TCP, Profibus, OPC-UA, MQTT, Ethernet/IP, LoRa, GPRS/4G/5G) for smooth data exchange between PLCs, IoT devices, and cloud servers.
• Conduct system testing, troubleshooting, diagnostics, and preventive maintenance of PLCs, SCADA servers, HMIs, sensors, actuators, and communication networks to minimize downtime.
• Collaborate with process engineers and plant operators to optimize plant performance through advanced control strategies (PID tuning, VFD integration, energy optimization, predictive maintenance).
• Design and implement cybersecurity measures to protect automation & IoT systems from unauthorized access, malware, and data breaches.
• Prepare and maintain technical documentation including control logic diagrams, wiring diagrams, SOPs, and system manuals.
• Coordinate with vendors and contractors for procurement, installation, and commissioning of automation hardware/software.
• Support plant expansion and upgradation projects by evaluating new automation technologies and IoT solutions.
• Train and mentor plant operators on SCADA/HMI usage, alarm handling, and IoT dashboards to improve operational efficiency.
• Generate periodic performance reports on plant automation, IoT monitoring, energy consumption, and water quality compliance.

Must-Have Skills:

• SCADA, PLC, HMI expertise
• IoT and real-time monitoring integration
• Combination of Automation, Instrumentation & IoT experience

Candidate Profile:

• Minimum 5–7 years of experience
• Kolkata-based only
• Prior experience in Water Treatment Industry mandatory

We are looking for Developers, Technical Leads and Architects for SailPoint IDN & IIQ Platform. As a Security professional you will be responsible for defining requirements, designing & building security components, & testing SailPoint IDN & IIQ Platform.

Roles & Responsibilities:

1. Configuration, customization, and design SailPoint. 

2. Experience in virtual appliance (VA) concepts, Identity Profiles, cloud rules, 

3. Transformation rule, migration, and deployments. 

4. Ability to Setup, Troubleshoot Configure SailPoint integration with different systems. 

5. Able to quickly onboard application and migrating users. 

6. Ability to build java bean shell, workflow, JML, custom rules. 

7. Liaison with teams on delivery, helping them on issue technical issue, bugs fixing and enhancements

Professional & Technical Skills:

1. Should have the ability to understand customer requirements. 

2. knowledge on Integrating various platforms with SailPoint, such as Active Directory, HR apps, SAP Systems, Workday, AD, Azure O365, JDBC and Other cloud applications. 

3. Implementation knowledge on Access request customization. 

4. Hands on experience in Customization of Quicklink, User LCM, Certification, Custom workflows, forms, Rules, SailPoint IIQ API/ REST API etc. 

5. Implementation experience in Certification, Custom reports Auditing. 

6. Strong JAVA/J2EE Development Knowledge 

Job Summary:

We are looking for a highly skilled and experienced C++ Developer with a strong background in embedded systems to join our dynamic product engineering team. The ideal candidate will have at least 5 years of recent hands-on experience in designing, developing, and optimizing high-performance embedded software applications using modern C++ standards (preferably C++11 or later). This is an exciting opportunity to work on cutting-edge technologies in a collaborative and innovative environment.

Key Responsibilities:

• Design, develop, and maintain robust and scalable software solutions using C++11 or above
• Work closely with hardware and embedded teams to implement and integrate real-time systems
• Develop software for embedded platforms and optimize performance for various target environments
• Implement and maintain multithreaded applications and handle concurrency issues efficiently
• Conduct unit and integration testing to ensure high-quality deliverables
• Collaborate with cross-functional teams including Product, QA, Hardware, and Design
• Troubleshoot, debug, and resolve complex technical issues in embedded environments
• Participate in code reviews and adhere to best practices in coding and documentation
• Stay updated on the latest advancements in C++ and embedded systems development

Required Skills & Qualifications:

• Bachelor's or Master’s degree in Computer Science, Electronics, or related field
• 5+ years of professional software development experience with strong recent exposure to C++
• Hands-on experience with C++11 or newer versions (C++14/17 preferred)
• Strong understanding of object-oriented programming (OOP) and software design patterns
• Proficient in embedded system programming and real-time operating systems (RTOS)
• Experience in multithreaded programming and inter-process communication
• Proficient in debugging tools, performance analysis, and memory management
• Familiarity with version control systems like Git

Preferred Skills:

• Experience working on low-level drivers, hardware integration, and peripherals
• Familiarity with scripting languages (Python, Bash) for automation
• Exposure to CI/CD pipelines and Agile/Scrum development methodologies
• Knowledge of tools such as GDB, Valgrind, JTAG debuggers, etc.
• AWS or cloud-based experience is a plus (for remote monitoring/logging or OTA updates)

Responsibilities

• To communicate 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 the International Market .
• Will be responsible for new business development (Acquiring new business )and maintain relationships with new and existing clients.
• Would be dealing in Web/Mobile App and Digital Marketing Domain.
• Preparing progress updates and documenting website development processes.

Requirements

• Fluency in English is mandatory
• Basic knowledge in computer operation.
• Learning mindset.
• Prior exp in the International voice process would be an added advantage.

Shift Timing: 8pm-5am (US)

Freshers also can apply.

Interview Mode: Face to face

Contact - 90381^69266

Or drop your resume at - sanjukta.seal at the rate adretsoftware.com

Job Description

As an International Sales Executive in our company, your primary responsibility is to drive sales and revenue generation for the company by engaging with potential customers from the US. You will be responsible for handling inbound sales calls, building relationships, and booking flight tickets.

Job Requirements

Proven 1-year experience in sales, preferably in an international outbound calling/ Sales environment.

Benefits

• Paid Training
• IATA Certificate
• Cab Facility
• Incentives

Designation : *Senior Node.js Developer*

CLient Name : *CLIRNET*

Key Responsibilities:

 Design and develop scalable, high-performance backend systems using Node.js

 Write clean, maintainable, and efficient code

 Collaborate with cross-functional teams to identify and solve complex software problems

 Participate in code reviews to maintain code quality standards

 Optimize application for maximum speed and scalability

 Develop and maintain API endpoints

 Implement security and data protection measures

 Develop and maintain automated tests to ensure code quality and coverage

 Participate in Agile development methodologies such as Scrum

Qualifications:

 Minimum of 4 years of experience in Node.js development

 Strong proficiency in Node.js and its core principles

 Experience with backend frameworks such as Express.js

 Experience with automated testing frameworks such as Jest or Mocha

 Strong understanding of software development best practices, including Agile

methodologies

 Familiarity with Git or other version control systems

 Excellent communication skills and ability to work in a collaborative team environment

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.