11+ OSI model Jobs in Kolkata | OSI model 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

Job Title : Lead Java Developer (Backend)

Experience Required : 8 to 15 Years

Open Positions : 5

Location : Any major metro city (Bengaluru, Pune, Chennai, Kolkata, Hyderabad)

Work Mode : Open to Remote / Hybrid / Onsite

Notice Period : Immediate Joiner/30 Days or Less

About the Role :

• We are looking for experienced Lead Java Developers who bring not only strong backend development skills but also a product-oriented mindset and leadership capability.
• This is an opportunity to be part of high-impact digital transformation initiatives that go beyond writing code—you’ll help shape future-ready platforms and drive meaningful change.
• This role is embedded within a forward-thinking digital engineering team that thrives on co-innovation, lean delivery, and end-to-end ownership of platforms and products.

Key Responsibilities :

• Design, develop, and implement scalable backend systems using Java and Spring Boot.
• Collaborate with product managers, designers, and engineers to build intuitive and reliable digital products.
• Advocate and implement engineering best practices : SOLID principles, OOP, clean code, CI/CD, TDD/BDD.
• Lead Agile-based development cycles with a focus on speed, quality, and customer outcomes.
• Guide and mentor team members, fostering technical excellence and ownership.
• Utilize cloud platforms and DevOps tools to ensure performance and reliability of applications.

What We’re Looking For :

• Proven experience in Java backend development (Spring Boot, Microservices).
• 8+ Years of hands-on engineering experience with at least 2+ years in a Lead role.
• Familiarity with cloud platforms such as AWS, Azure, or GCP.
• Good understanding of containerization and orchestration tools like Docker and Kubernetes.
• Exposure to DevOps and Infrastructure as Code practices.
• Strong problem-solving skills and the ability to design solutions from first principles.
• Prior experience in product-based or startup environments is a big plus.

Ideal Candidate Profile :

• A tech enthusiast with a passion for clean code and scalable architecture.
• Someone who thrives in collaborative, transparent, and feedback-driven environments.
• A leader who takes ownership beyond individual deliverables to drive overall team and project success.

Interview Process

1. Initial Technical Screening (via platform partner)
2. Technical Interview with Engineering Team
3. Client-facing Final Round

Additional Info :

• Targeting profiles from product/startup backgrounds.
• Strong preference for candidates with under 1 month of notice period.
• Interviews will be fast-tracked for qualified profiles.

Are you passionate about crafting seamless and visually appealing websites?

We’re seeking a skilled WordPress Front-end Developer to join our team and elevate our online presence.

As a WordPress Frontend Developer, you’ll play a crucial role in transforming designs into fully functional, responsive, and captivating websites using Elementor and custom themes. Your proficiency in HTML and CSS will be essential for creating stunning front-end experiences. If you’re also familiar with WordPress theme and plugin development, that’s a significant advantage that we highly value.

Responsibilities:

• Collaborate with our design team to convert visual concepts into interactive and user-friendly websites.
• Utilize Elementor to build and customize page layouts, ensuring consistency and responsiveness across various devices.
• Develop custom WordPress themes that align with project requirements, user experience goals, and brand aesthetics.
• Implement engaging animations, transitions, and interactive elements to enhance user engagement and visual appeal.
• Optimize website performance, ensuring fast load times and smooth user interactions.
• Stay up-to-date with the latest web design and development trends, implementing best practices for modern user experiences.
• Troubleshoot and debug frontend issues to maintain a seamless browsing experience.
• If knowledgeable in WordPress plugin development, contribute to the creation of custom plugins that extend website functionality.

What You Need To Apply (Technical Competency) :

• Minimum 2 years experience in WordPress.
• Strong proficiency in HTML and CSS to create pixel-perfect front-end designs.
• Demonstrated expertise in using Elementor to design and build WordPress pages.
• Proven experience in developing custom WordPress themes from scratch.
• A portfolio showcasing your previous website projects, highlighting your front-end development skills.
• Familiarity with responsive design principles to ensure optimal performance across various devices and screen sizes.
• Excellent attention to detail and a keen eye for design aesthetics.
• Effective problem-solving skills to address front-end issues efficiently.
• Strong communication skills, and ability to collaborate with designers, developers, and other team members.
• Knowledge of JavaScript and its libraries/frameworks is a plus.
• Understanding WordPress plugin development is a significant advantage.
• Ability to manage multiple projects and meet deadlines in a fast-paced environment.

If you have it all in you, we are happy to have you with us!

We will be even happier if you have:

• Proficiency in PHP
• Being an open-source contributor;
• Ability to discover functional and non-functional requirements of an app, based on various levels of inputs from clients.
• Ability to transform customer ideas into business models and scope understandable by technical experts.
• Having excellent stakeholder management and client-facing skills.

Key Responsibilities

• Must know Hindi.
• Understanding the customer needs.
• Closing sales and achieving monthly targets.
• Calling on leads and generating leads.

Desired Skills and Experience

Lead Generation, Sales

About the Company: Bigpage is a web design and development company. It is one of the largest and fastest-growing online B2B marketplaces, classifieds, and E-commerce platforms where you can sell almost everything. We aim to connect buyers to potential sellers in India and overseas customers.

Front End developers

• Angular.JS experience
• MongoDB query and aggregation experience (not a database administrator)
• GraphQL experience
• Node.JS and Typescript experience
• CSS and SCSS experience
• CI/CD experience with GitHub actions

Backend Developers:

• Software development experience, one of Python (preferred) or Node.JS/Typescript)
• Experience with Messaging architectures - RabbitMQ (preference) or Kafka
• Experience with docker-containers 
• Experience with Apache NiFi (valued but not necessary)
• Experience with designing or implementing horizontally scalable solutions
• Experience working with RESTful APIs
• CI/CD experience with GitHub actions
• Experience with Azure cloud

Desired Candidate Profile

About:

Pangolin is a brand consultancy and creative agency. We help companies create positive change in the world by raising awareness through branding and inspiring through storytelling. We’re growing our team of creatives and strategists. Join us if you’re craving work that makes a real difference in the world, and a work culture that allows you to have a balanced life. 

Role:

B2B Social Media Expert

Description:

Are you intimately familiar with the LinkedIn algorithm? Do you specialize in growing brand following on Twitter? Are you proficient in defining and executing social media strategies for Quora, Reddit, Instagram, and Facebook?  We’re looking for an expert with a solid understanding of how each social media channel works and how to optimize content so that it is engaging. As the B2B Digital Marketing Specialist, you will also be responsible for organizing and producing content that follows our clients’ brand guidelines.

Competencies:

• Consistent and self-driven to learn about social media platforms and trends. 
• Strong creative storytelling skills with a focus on visual and content aesthetics.

Skills:

• Working knowledge of SMM tools like Hootsuite, Moz, Loomly, etc.
• Working knowledge of design applications like Adobe Suite, Canva, etc., and other video editing tools.
• Adept at digital tools like Facebook Insights, Twitter Analytics, Google Analytics/Google Ad Manager.
• Adept at communicating in a professional, but unique social media “voice” for each client; directly aligned with the clients’ thought leadership and content platform.

Experience:

• Demonstrable B2B social networking experience and social analytics tools.
• Experience in managing multiple digital marketing campaigns with the ability to analyze and make recommendations on performance.
• Strong understanding of social media KPIs, keyword optimization tools, and social media algorithms.

Location and Type: 

Remote, Full-time

Evaluation:

Portfolios will be checked for expertise in the B2B domain. Please share only case studies of growth where the strategy and execution were owned end-to-end by you. Shortlisting will be followed by a video interview.

Ivan Infotech is looking for talented Hybrid developer.

Job Responsibility :

• Develop hybrid mobile application using ionic or react native.
• Manage the complete app development life cycle, which includes Screen Layout development, API integration, Testing and Submission to app stores .
• Experience of building Apps using CLI for Android and iOS. Experience of interacting with Apple Store and Play Store.
• Capability to integrate with third party APIs .
• Should have experience in Front end design and back end coding.

Required Skilled:

• Minimum 1.5 year of year experience hybrid mobile application development.
• Experience with HTML5, CSS3, Angular js, jQuery and Responsive Web Design frameworks .
• Should have knowledge of developing Hybrid Mobile applications using Ionic or React native framework.
• Should have good knowledge in cordova.

Benefit:

• Monday to Friday working.
• Flexible working hour.
• Hassle free working environment.