11+ OSI Jobs in Kolkata | OSI 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

• Lead and manage the SEO team to deliver results aligned with client goals.
• Communicate with international clients to understand project requirements and provide tailored SEO solutions.
• Conduct in-depth online research to identify potential clients and collect contact data for outreach.
• Develop and implement robust on-page and off-page SEO strategies. Optimize content, websites, and landing pages for search engine visibility and performance.
• Continuously discover and optimize for high-performing keywords. Build and maintain high-quality, natural backlinks to improve search rankings and domain authority.
• Analyze competitor websites and digital strategies to identify SEO growth opportunities.
• Coordinate with the graphics, content, and SEO teams to ensure seamless campaign execution.
• Plan and manage a monthly content calendar for articles and blog posts to support organic growth.
• Monitor and evaluate search engine performance and deliver actionable insights.
• Collaborate with web developers and the broader marketing team to implement SEO best practices.

We're Hiring: UI/UX Designer 🚨

Are you passionate about creating intuitive and stunning digital experiences?

💼 Location: Kolkata (On-site)

🕒 Exp - 4-6 years

📩 Interested? You can DM us (HR Tama Saha - Weavers Web)

We’re on the lookout for a UI/UX Designer with:

✅ 4-6 years of design experience in Adobe XD, Figma, and Photoshop

✅ 1+ year of client communication experience

Join our creative team and work on impactful projects that combine design thinking, client collaboration, and cutting-edge visuals.

✅ Collaborate with developers and product teams

✅ Turn ideas into beautiful user interfaces

✅ Communicate directly with clients and translate feedback into powerful design solutions

✅ Help shape experiences that people love to use

Let’s build something beautiful together! 🚀

We are looking for an experienced Technical Lead with a strong development background and leadership skills to drive technical solutions and manage a dynamic development team. The ideal candidate must have hands-on experience in WordPress, Laravel, Shopify, Node.js, and Server management, along with excellent communication and team leadership abilities.

Key Responsibilities:

Technical Leadership & Development:

• Lead the development team, providing technical direction, guidance, and mentorship.
• Architect and implement scalable, high-performance, and secure web applications.
• Provide hands-on expertise in WordPress, Laravel, Shopify, and Node.js.
• Manage and optimize server infrastructure for smooth deployment and performance.
• Ensure best coding practices, security, and performance optimization.
• Conduct code reviews, provide constructive feedback, and improve development processes.
• Troubleshoot, debug, and resolve complex technical issues.

Team Management & Leadership:

• Build and lead a high-performing development team, fostering a collaborative work culture.
• Assign tasks, monitor progress, and ensure timely delivery of projects.
• Conduct regular team meetings, training, and performance evaluations.
• Encourage innovation, skill development, and knowledge sharing within the team.
• Collaborate with cross-functional teams, including designers, project managers, and stakeholders.
• Act as a bridge between technical teams and business stakeholders, ensuring alignment on goals

Requirements:

• 5+ years of experience.
• Proven ability to lead and manage a development team.
• Expertise in WordPress, Laravel, Shopify, and Node.js.
• Strong experience in server management (Linux, cloud hosting, deployment).
• Hands-on experience with APIs, third-party integrations, and database management.
• Ability to design and implement technical solutions aligned with business objectives.
• Strong understanding of performance optimization, security, and scalability.
• Excellent problem-solving skills and attention to detail.
• Strong communication skills in English, both written and verbal.
• Proactive, self-motivated, and able to work in a fast-paced environment.

Please note that, we are looking Male candidates for this position, in an around West Bengal only. 

Job Title: WordPress Developer

Company: Fortmindz

Location: Kolkata

About Fortmindz:

Fortmindz is a cutting-edge software development company that specializes in delivering innovative and intuitive web and mobile applications. We are seeking a talented WordPress Developer to join our team and help us build world-class WordPress websites and plugins.

Responsibilities:

- Develop and customize WordPress themes and plugins based on project requirements

- Write clean, efficient, and maintainable code

- Troubleshoot and debug WordPress websites and plugins to optimize performance and user experience

- Collaborate with cross-functional teams to define, design, and ship new features

- Stay up-to-date with new WordPress features, technologies, and industry best practices

- Participate in code reviews and contribute to the continuous improvement of our development process

- Ensure WordPress websites and plugins are responsive and perform well across different devices and browsers

- Build and maintain custom WordPress themes and plugins using HTML, CSS, JavaScript, and PHP

Requirements:

- Bachelor's or Master's degree in Computer Science or a related field

- At least 2 years of experience as a WordPress Developer or in a similar role

- Strong knowledge of WordPress, including its core functionality, themes, and plugins

- Proficiency in HTML, CSS, JavaScript, and PHP

- Experience with Git and agile development methodologies

- Good understanding of responsive design principles and cross-browser compatibility

- Excellent problem-solving and debugging skills

- Strong communication and teamwork skills

Benefits:

- Competitive salary and benefits package

- Opportunities for career growth and professional development

- A dynamic and inclusive work environment

- Access to cutting-edge technologies and tools

If you are a talented WordPress Developer who is passionate about building high-quality WordPress websites and plugins, we would love to hear from you! Please submit your resume and a cover letter highlighting your relevant experience.

Fortmindz is an equal opportunity employer and values diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Ésah Tea is a brand devoted to giving you the ultimate tea experience. We believe that joy and warmth can be shared in many forms but is best when shared with a cup of tea. Our tea is made with absolute care and honesty by the best growers in Assam who believe in only giving the best.

Our tea is the perfect harmony of aesthetics, flavor, complexity, and health. Our mission to give you the best tea experience as a result of the respect we have for the art and craft of tea making and its culture. Directly from the tea gardens of Assam, from the most authentic growers with finesse in the cultivation of tea, our mission is to give you the best experience. We care about our environment and believe in sustainable and ethical extraction and production. Our initiative to switch to plastic-free teabags is a result of adopting sustainability as an ethic.

Ésah Tea recently raised a Pre Series A round from a well-known VC and has some milestones that the company would like to achieve. As it is well known in the eCommerce industry, achieving higher milestones month after month, year after year is a standard. Hence, Ésah Tea is looking to build a core team that can take it towards the next stage of its eCommerce journey. So if you think that you are perfect to work in a Startup, Let's have a chat.

The Job

• Manage paid acquisition channels like Google Ads and Facebook Ads. Analyze the results and optimize individual campaigns.
• Be responsible for the ROI of dozens of campaigns you execute.
• Own, drive, and report on crucial marketing efficiency metrics such as CAC, LTV, and, ROAS
• Understand your target audience and customer behaviors. You create strategies and campaigns, understanding the entire user journey from account creation until purchase.
• Analyze creative data and make recommendations to the Creative designers
• Come up with a hypothesis and test it scientifically to consolidate learnings, thereby increasing the baseline of the team's quality.
• Document findings in a structured way to contribute to the company's global knowledge base

Collaborate with international peers in other geographical markets to keep the highest possible baseline quality in your campaigns.

The Ideal Candidate

• 2-4 years of paid marketing experience, preferably in consumer-facing products
• Fluent in English (Advanced writing and speaking English skills)
• Experience with creative experimentation
• Experience with fast-paced, high growth startups
• Strong analytical and problem-solving skills
• A natural strategist
• Makes fast business decisions that prove to be profitable

Nice to have

• SQL
• Understanding of ad platforms algorithms

Experience with programmatic media (DSP)

Note: Must Be willing to relocate to Guwahati, Assam

Role: Technical Lead

Location: Mumbai/Kolkata

Years of Experience - 9 to 15 years

Qualifications:

• Required person as .net core, team Management,Good communication,Plus Rest API,AWS Lambda,mySql
• AWS API Gateway .
• Bachelor’s degree preferably in Computer Science, Computer Engineering or related field.
• 9 to 12 yrs years’ experience in technology related roles including relevant work as technical architect.
• Experience working with latest software technologies (.Net core 3.1+, MVC/WCF/Web API, cloud hosted (AWS) , mobile ready software products (Angular 6+/React.js)
• Experience in AWS cloud.
• Experience working with GIT/TFS, CI/CD setups, Application Monitoring, Logging and Analysis tools
• Experience working with Service Oriented Architecture
• Experience working in an Agile-SCRUM environment using tools like Jira or equivalent
• Experience working with international customers (US and UK preferable)
• Experience in customer interaction and ability to present solutions and consult clients on technology solutions.
• Ability to effectively communicate with various levels of employees ranging from entry level to senior leadership.
• Proven strong relationship-building and communication skills with team members and business users. Ability to coach and mentor internal teams and customers.
• Highly motivated with excellent verbal and written communication, presentation, facilitation, negotiation and problem solving skills.
• Self-starter with strong organizational and time management skills, self-directed and able to handle multiple priorities with demanding timeframes.
• Willingness and ability to work flexible hours and with minimal supervision.  
• Willingness and ability to travel domestic and occasional international across US and Europe.
• Proficient using standard software, such as MS Office applications, Google Apps, and communication and diagramming/presentation tools.