11+ Tomcat Jobs in Kolkata | Tomcat Job openings in Kolkata

Greetings From NAM INFO Pvt

Performance Engineer III

Experience: 6–8 Years

Location: Siruseri – EB6 / Gitanjali Park – SEZ

Job Summary

We are looking for an experienced Performance Engineer to work on large-scale distributed systems and cloud platforms in a high-traffic e-commerce environment. The role involves performance testing, monitoring, troubleshooting, and tuning applications to improve scalability, reliability, and overall system performance.

Key Responsibilities

• Design and execute performance testing strategies including load, stress, and capacity testing.
• Use tools such as JMeter, Locust, or LoadRunner for performance testing.
• Automate performance tests as part of CI/CD pipelines.
• Analyze performance issues using thread dumps, heap dumps, and TCP dumps.
• Monitor applications using APM tools such as New Relic or Dynatrace.
• Use Splunk for log analysis, dashboards, queries, alerts, and root-cause analysis.
• Tune application servers such as Tomcat, Node.js, and Spring Boot.
• Analyze network performance using tools such as Wireshark, ExtraHop, and Riverbed.
• Monitor systems and proactively identify performance bottlenecks.
• Analyze browser performance using Lighthouse, Chrome DevTools, Catchpoint, and WebPageTest.
• Work closely with Developers, SRE, QA, and DevOps teams.
• Participate in code reviews and ensure performance best practices are followed.

Required Skills

• 6–8 years of experience in Performance Engineering / Performance Testing.
• Strong hands-on experience with JMeter is preferred.
• Experience with Splunk for log analysis and troubleshooting.
• Strong knowledge of APM tools such as New Relic or Dynatrace.
• Experience with performance test planning, execution, analysis, reporting, and defect tracking.
• Good understanding of microservices architecture.
• Experience with performance tuning of Tomcat, Node.js, and Spring Boot.
• Strong troubleshooting and root-cause analysis skills.
• Good understanding of CI/CD and performance test automation.

Good to Have

• Programming experience in Java, Python, or Groovy.
• Experience analyzing heap dumps, thread dumps, and TCP dumps.
• Knowledge of Wireshark or CloudShark.
• Experience with Fiddler and Chrome DevTools.
• Knowledge of Azure, AKS, or GCP.
• Certifications in Azure, Splunk, or New Relic.

Integration Developer

ROLE TITLE

Integration Developer

ROLE LOCATION(S)

Bangalore/Hyderabad/Chennai/Coimbatore/Noida/Kolkata/Pune/Indore

ROLE SUMMARY

The Integration Developer is a key member of the operations team, responsible for ensuring the smooth integration and functioning of various systems and software within the organization. This role involves technical support, system troubleshooting, performance monitoring, and assisting with the implementation of integration solutions.

ROLE RESPONSIBILITIES

·       Design, develop, and maintain integration solutions using Spring Framework, Apache Camel, and other integration patterns such as RESTful APIs, SOAP services, file-based FTP/SFTP, and OAuth authentication.

·       Collaborate with architects and cross-functional teams to design integration solutions that are scalable, secure, and aligned with business requirements.

·       Resolve complex integration issues, performance bottlenecks, and data discrepancies across multiple systems. Support Production issues and fixes.

·       Document integration processes, technical designs, APIs, and workflows to ensure clarity and ease of use.

·       Participate in on-call rotation to provide 24/7 support for critical production issues.

·       Develop source code / version control management experience in a collaborative work environment.

TECHNICAL QUALIFICATIONS

·       5+ years of experience in Java development with strong expertise in Spring Framework and Apache Camel for building enterprise-grade integrations.

·       Proficient with Azure DevOps (ADO) for version control, CI/CD pipeline implementation, and project management.

·       Hands-on experience with RESTful APIs, SOAP services, and file-based integrations using FTP and SFTP protocols.

·       Strong analytical and troubleshooting skills for resolving complex integration and system issues.

·       Experience in Azure Services, including Azure Service Bus, Azure Kubernetes Service (AKS), Azure Container Apps, and ideally Azure API Management (APIM) is a plus.

·       Good understanding of containerization and cloud-native development, with experience in using Docker, Kubernetes, and Azure AKS.

·       Experience with OAuth for secure authentication and authorization in integration solutions.

·       Strong experience level using GitHub Source Control application.

·       Strong background in SQL databases (e.g., T-SQL, Stored Procedures) and working with data in an integration context.

·       Skilled with Azure DevOps (ADO) for version control, CI/CD pipeline implementation, and project management.

·       Experience in Azure Services, including Azure Service Bus, Azure Kubernetes Service (AKS), Azure Container Apps, and ideally Azure API Management (APIM) is a plus.

GENERAL QUALIFICATIONS

·       Excellent analytical and problem-solving skills, with a keen attention to detail.

·       Effective communication skills, with the ability to collaborate with technical and non-technical stakeholders.

·       Experience working in a fast paced, production support environment with a focus on incident management and resolution.

·       Experience in the insurance domain is considered a plus.

EDUCATION REQUIREMENTS

·       Bachelor’s degree in Computer Science, Information Technology, or related field.

Job Types: Full-time, Permanent 

Pay: ₹25,000.00 - ₹40,000.00 per month 

Work Location: In person 

Qualification: Any graduate  

Working Mode: 6days working 

Experience: Minimum 3 years

Key Responsibilities 

• Campaign Management: Launch, manage, and optimize Facebook and Instagram ad campaigns using Meta Ads Manager. 
• Strategy & Planning: Develop performance-driven strategies to achieve client goals (e.g., website traffic, lead generation, conversions). 
• Audience Targeting: Create custom and lookalike audiences using Meta’s targeting tools. 
• Creative Development: Design compelling ad copies and visual assets, collaborating with creative teams. 
• Performance Optimization: Monitor daily campaign metrics (ROI, ROAS, CPM, CTR) and conduct A/B testing on creative and audiences. 
• Reporting: Prepare detailed weekly/monthly reports offering actionable insights. 
• Technical Setup: Implement and manage Meta Pixels and conversion APIs.  

Qualifications 

• Proven experience as a Meta Ads Specialist or in a similar performance marketing role. 
• Deep understanding of Meta Ads Manager, Business Suite, and Audience Insights. 
• Strong analytical skills to analyse data and improve campaign performance. 
• Knowledge of industry trends and algorithm updates.  

Required Skills 

• Performance Marketing 
• Ad Copywriting 
• Data Analysis 
• Audience Segmentation 
• A/B Testing 
• Budget Management 

This role often works with other digital marketing channels like Google Ads. 

1. Research, Implement, Monitoring, and Report on Organic search

2. Keyword research and mapping

3. Content writing and optimization

4. Link-building outreach campaigns

5. Acquire backlinks

6. Editorial negotiations

7. Maintaining SERPs

8. Work on standard and current SEO practices

9. Auditing existing website

10. Recommend changes to website architecture, content, linking, and other factors to improve

SEO positions for target keywords

11. Work on SEO reporting

Skills & Requirements

1. Excellent written and verbal communication skills

2. Knowledge of technical aspects of search engines, search algorithms, ranking factors etc.

3. Demonstrated knowledge of SEO skills like on-page SEO, and website analytics.

4. Strong operational excellence in link building – NOT outdated practices like (directories,

bookmarking, etc.)

5. Knowledge of outreach to editors to form collaborations for publishing our content on their

portal – this is a must-have. Candidate to show clear experience of achieving this in this past

employment.

6. Strong experience in the use of Google Analytics and Google Search Console

7. Ability to solve problems and identify opportunities through data analysis and critical

thinking

8. Strong attention to detail, excellent organizational skills, and ability to manage multiple

projects and responsibilities

9. Agency background preferable

CTC

20,000/- p.m. to 30,000/- p.m.

Job Opening: FreeSWITCH Developer

Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata

Employment Type: Full-Time, Permanent

Shift: Day Shift

Experience: Minimum 4+ years in FreeSWITCH/VoIP Development

Responsibilities:

• Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
• Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
• Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
• Hands-on experience with RTP Proxy and routed audio conferences.
• Understanding of SDP Protocol offer/answer mechanism.
• Work with load testing tools for FreeSWITCH audio conferences.
• Deploy and manage multiple FreeSWITCH instances using load balancers.
• Debug issues using packet captures (Wireshark/Ngrep).
• Collaborate with mobile/API teams for integration and support.
• Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
• Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.

Qualifications:

• Bachelor’s degree in Engineering (B.Tech/MCA).
• 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
• Strong knowledge of Linux environments and command-line tools.
• Basic to intermediate SQL knowledge.
• Proficiency in scripting (Bash, Python, Perl) for automation.
• Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
• Excellent troubleshooting skills with ability to resolve complex technical issues.
• Strong problem-solving, communication, and collaboration skills.

Industry Preference:

• Travel (Preferred)
• Any Industry (Required)

Job Title: Mobile Application Developer -Flutter

Company: Fortmindz

Location: Kolkata

About Fortmindz:

Fortmindz is a cutting-edge software development company that specializes in delivering innovative and intuitive mobile applications. We are looking for a talented Flutter Developer to join our team and help build high-quality, visually appealing, and user-friendly mobile applications.

Responsibilities:

• Design and develop innovative mobile applications using Flutter and Dart programming language
• Collaborate with cross-functional teams to understand user requirements and translate them into technical specifications
• Implement UI/UX designs and develop custom widgets to enhance the overall user experience
• Debug and fix technical issues, ensuring the smooth functioning of the application
• Participate in code reviews and contribute to the development of best practices and coding standards
• Keep up-to-date with the latest technologies and advancements in the Flutter framework

Requirements:

• Bachelor's or Master's degree in Computer Science or a related field
• At least 2 years of experience in Flutter development
• Strong knowledge of Dart programming language and Flutter framework
• Strong knowledge of at least one state management tool such as bloc, provider or riverpod
• Should be able to implement RESTFull api's
• Experience with Agile software development methodologies
• Excellent problem-solving, analytical, and communication skills
• A passion for delivering high-quality and user-friendly mobile applications

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 Flutter Developer who is passionate about delivering high-quality mobile applications, 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.

Location: Rajarhat, Kolkata

Experience: 8 years and above

Salary: upto 15 lakhs

Qualification: B. Tech/ B.E./ MBA

Responsibilities:

• Assess change proposals and define solutions to help the organization to achieve its goals.
• Discover, organise and clarify business needs and review/produce applications for change.
• Prioritize requirements from various stakeholders.
• Technical documentation.

Skills:

• 4 - 5 years experience in technical documentation.
• Sound knowledge and experience with Agile.
• Experience in app making and web programming.

Leaders at The Seenit Co. are passionate about using technology to create an impact on the world they live in. At Seenit, you will get to collaborate with an accomplished team that loves solving real-world problems. You will get to work on cutting edge projects that will shape the next phase of growth for the global luxury industry.

Seenit’s suite of products (http://www.styleade.com/" target="_blank">www.styleade.com) enables the leading luxury retailers around the world to transform their customer experience and build loyal relationships with their customers. The apps allow retailers to make use of their existing infrastructure and resources to deliver a truly omnichannel experience in today's rapidly changing world of shopping. The product has added 50 million USD to the top-line of one of the largest luxury retailers in the world. Store Associates and Stylists have assisted upwards of 100,000 consumers till date.

We would welcome someone to the team who wishes to:

• take ownership of the quality of code powering the product
• take an active role in the definition and evolution of best industry practices and procedures
• design, develop and test the core product software and databases to ensure strong optimization and functionality
• contribute in all phases of the development lifecycle
• support others to succeed and shine in a supportive team culture

• 4+ years experience in building consumer products
• experience of leading a team of 3 or more full stack developer
• Codeigniter Preferred 
• Good knowledge of Mysql and query optimisation
• Experience with PHP 7, HTML5, AJAX, JavaScript, JQuery, CSS, MVC frameworks (Bootstrap), API
• Experience with Ubuntu OS is a plus
• experience deploying softwares to cloud providers such as GCP, AWS