11+ WAN Jobs in Kolkata | WAN 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

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

A) Skills Required

Essential Skills (Two top

skills)

3 possible combinations.

1. Candidate having expertise in both ElasticSearch and Kafka, preferably.

OR

2. Candidate having expertise in ElasticSearch and willing to learn Kafka.

OR

3. Candidate having expertise in Kafka and willing to learn ElasticSearch.

B) Other Information

Educational Qualifications Graduate

Experience Mid-Level (6+ years)

Minimum Qualifications:

ElasticSearch/OpenSearch

· Software Lifecycle/programing skills

· Linux

· Python

· Ingestion tools (logstash, OpenSearch Ingestion, Fluentd, fluentbit, Harness,

CloudFormation, container, images, ECS, lambda).

· SQL query

· Json

· AWS knowledge

Kafka/MSK

· Linux

· In-depth understanding of Kafka broker configurations, zookeepers, and

connectors

· Understand Kafka topic design and creation.

· Good knowledge in replication and high availability for Kafka system

· Good understanding of producers and consumer group

· Understanding Kafka partitions and scaling up

· Kafka latency/lag and throughput

· Integrating Kafka connect with various data sources can be internal or external.

· Kafka security using SSL/Certs

We are seeking an experienced and highly skilled Python Developer with some experience in Laravel to spearhead our offshore team, in managing a large-scale USA-based product platform.

As a Senior Python Developer, you will primarily focus on building efficient data-driven applications and robust web scraping solutions. You will leverage your experience with the Scrapy framework for large-scale data collection and processing. While Python is the primary language, some experience in Laravel will be essential to contribute to PHP-based projects, allowing for full-stack support when needed.

This role requires a proactive, resourceful developer who can think on their feet and efficiently tackle complex problems.

Key Responsibilities

1. Scrapy Web Scraping: Develop, optimize, and maintain web scrapers using the Scrapy framework to gather, process, and store data from various online sources.
2. Back-End Development: Design, develop, and implement scalable backend solutions in Python, focusing on reliability, efficiency, and high performance.
3. Laravel Integration (As Needed): Contribute to existing Laravel projects, working with the PHP framework to support API endpoints, and ensure seamless integration with Python-based services.
4. API Development & Integration: Build and integrate RESTful APIs to facilitate seamless communication between applications and external data sources.
5. Data Processing & Storage: Create efficient data processing pipelines and manage SQL/NoSQL databases to store and organize large datasets collected through Scrapy.
6. System Architecture: Work collaboratively with other developers to design scalable, resilient architectures that support data-heavy applications.
7. Continuous Integration & Automation: Use Python to automate tasks, optimize CI/CD workflows, and enhance deployment processes for faster and more reliable releases.
8. Mentorship & Code Review: Mentor junior developers, conduct code reviews, and contribute to maintaining high coding standards and best practices.

Qualifications

Experience

• 5+ years of professional experience in Python development, with a strong focus on web scraping using Scrapy.
• 1-2 years of experience with Laravel (intermediate understanding is acceptable for full-stack support).
• Demonstrated experience with data-driven projects, showcasing resourceful problem-solving abilities.

Technical Skills:

1. Python: Advanced proficiency in Python, particularly with libraries for data manipulation and web scraping.
2. Scrapy Framework: Extensive experience in Scrapy, including creating custom spiders, handling complex data extraction requirements, and working with proxies and data pipelines.
3. Laravel (PHP): Familiarity with Laravel for backend development, including API creation, routing, and MVC structure.
4. Database Management: Proficiency in SQL and NoSQL databases for efficient data storage and retrieval.
5. API Development: Hands-on experience with RESTful APIs and integrating external services.
6. Automation & DevOps: Familiarity with CI/CD tools, Docker, and version control systems (Git).
7. Cloud Platforms: Experience with cloud platforms like AWS, Google Cloud, or Azure is a plus.

Why Join Us?

• High-Impact Role: Work on projects where your expertise in Scrapy and Python will directly influence our data capabilities and client success.
• Growth Opportunities: Access to learning resources, mentorship, and a supportive environment for continuous professional development.
• Innovative Culture: Join a team that values out-of-the-box thinking, resourcefulness, and efficient problem-solving.

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

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.

Job Description

Experience : 3-5Years

Requirement

• 3+ years of backend/full-stack development experience
• Proficient knowledge of a back-end programming language i.e Node.Js
• Experience with AWS services,Mongo DB
• Experience with RabbitMQ or similar queuing system
• Experience with Redis/ElasticSearch/PHP is a plus
• Familiarity with CI/CD pipeline tools like Jenkins
• Experience in handling a team
• Good at Design patterns, Algorithms, and Data structures.
• Have outstanding leadership skills, excellent people/communication, and negotiation skills
• Good knowledge of working with Git 

• User authentication and authorization between multiple systems, servers, and

           environments.

• Integration of multiple data sources and databases into one system

           Management of the hosting environment, including database administration

           and scaling an application to support load changes

.

Regards
Team Merito

About Company: Spica Systems (https://spicasys.com )

Spica Systems is a Silicon Valley based start-up, established in 2019 and are recognized as experts in building products and providing R& DandSoftware Development services in wide range of leading-edge technologies such as LTE, 5G, Cloud Services (Public -AWS, AZURE, GCP, Private -Openstack) and Kubernetes. Ithasa highly scalable and secured 5G Packet Core Network, orchestrated by ML powered Kubernetes platform, which can be deployed in various multi cloud modealong with a test tool. Headquartered in San Jose, California, we have our R& D centre in Sector V, Salt Lake Kolkata.

• Looking for a Software developer who will work on the product's Web UI side
• Hands on and working experience with React JS
• Experience in WebUI using Javascript technology.
• Experience: 2-4 years of React development in a team environment
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Redux.
• Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.

Education: Bachelors/Masters in Computer Science, IT or Mathematics or Engineering

Traits: Quick learner, open minded, willing to learn

Essential Criteria:-