Single Page Applications SPA Jobs in Kolkata

React JS Developer Location: Kolkata, West Bengal Employment Type: Full-Time About the Role: We are looking for an experienced React JS Developer to join our team in Kolkata. This is a high-impact role focused on building intuitive and high-performance user interfaces. The ideal candidate is a hands-on developer with expertise in ReactJS and related modern front-end technologies, capable of leading development efforts and mentoring a team. Key Responsibilities: Develop new, scalable, and responsive user-facing features using React.js and Next.js Build and maintain reusable components and front-end libraries for future use Optimize applications for maximum speed and scalability across devices and browsers Collaborate with cross-functional teams including Product, Design, and Backend for seamless delivery Mentor junior developers and ensure adherence to best coding practices and standards Conduct and participate in peer code reviews Manage small development teams and client deliverables effectively Stay up-to-date with latest trends in front-end development and React ecosystem Assist in preparing technical documentation including SRS, SDD, architecture diagrams, etc. Required Skills & Qualifications: Bachelor's degree in Computer Science, Engineering, or a related field 5+ years of professional experience in front-end development Strong proficiency in React.js, Next.js, and core JavaScript principles In-depth understanding of JavaScript, HTML5, CSS3 Experience with modern React workflows like Redux, Context API, etc. Proficiency with build tools like Webpack, Babel, and testing libraries such as Jest, Mocha Experience with SSR (Server Side Rendering) frameworks (e.g. Next.js, Gatsby) Familiarity with RESTful APIs, GraphQL, and TypeScript Knowledge of React Native is a plus Basic knowledge of AWS services and cloud architecture Experience with UI/UX design and debugging browser rendering issues Strong analytical and problem-solving abilities Excellent communication and team collaboration skills Preferred (Bonus) Skills: Experience with cloud architecture planning and system diagramming Knowledge of performance testing frameworks Exposure to technical documentation writing Work on cutting-edge, high-performance applications Collaborate with a skilled and passionate team Opportunity to grow into a leadership role Competitive salary and career advancement opportunities If you re passionate about creating exceptional web experiences and are excited to lead impactful projects, we d love to hear from you! Qualification : Bachelor's degree in Computer Science, Engineering, or a related field

Job Title: Data Engineer Location: Kolkata Employment Type: Full-time Experience: 3+ years Salary: INR 10 - 15 LPA Notice Period: 30 Days Role & Responsibilities: Participate in technical and functional design discussions for sprints, modules, or projects Design and implement end-to-end data solutions involving storage, integration, processing, and visualization using Azure Ingest data from multiple sources such as SQL Server, Oracle, Excel, SQL Azure, etc., into Azure Data Factory and Azure Data Lake Storage (ADLS) Extract data from one database and load it into another, ensuring data integrity and performance Build scalable data architecture for ingestion, processing, and surfacing large-scale data for applications Utilize various scripting languages to integrate systems effectively, understanding their nuances Research and implement innovative methods to acquire data and leverage existing data for new applications Collaborate with data architects, analysts, and scientists to prepare datasets for analysis and interpretation Perform statistical analysis and fine-tune data processes based on test results Develop and extend libraries and frameworks to support data workflows Create design documents and provide technical solutions aligned with business requirements Preferred Candidate Profile: Strong understanding of database management, OLAP, and ETL frameworks Minimum 3 years experience working with Azure, Azure Data Factory, and .NET technologies Proficient in creating manual and auto-trigger pipelines in Azure Data Factory Experience in managing ETL jobs in Azure Synapse Analytics, including creating, updating, editing, and deleting jobs Ability to replicate existing application logic within Azure Data Lake, Data Factory, SQL Database, and SQL Data Warehouse environments Solid knowledge of SQL queries, SQL Server Reporting Services (SSRS), and SQL Server Integration Services (SSIS) Proven initiative and innovative mindset Strong analytical and problem-solving skills

Senior AI/ML Developer | 5+ Years Experience | Full-Time | Kolkata About RedoQ RedoQ is a leading IT company specializing in innovation through Artificial Intelligence and Machine Learning. We are expanding our team and looking for an experienced Senior AI/ML Developer to lead AI-driven projects that enhance our products and accelerate business growth. Role Overview As a Senior AI/ML Developer at RedoQ, you will design, develop, and deploy advanced machine learning models and AI algorithms. You will work with large datasets, optimize model performance, and collaborate with cross-functional teams to integrate AI solutions across our platforms. Key Responsibilities Develop, train, and deploy machine learning models and AI algorithms to solve complex business problems. Collect, preprocess, and analyze large-scale datasets for model training. Optimize and fine-tune AI models for accuracy, scalability, and efficiency. Collaborate closely with data scientists, software engineers, and stakeholders to implement AI/ML solutions. Stay updated on the latest AI/ML research and technologies to continuously improve models and processes. Design and implement robust testing and validation strategies for AI models. Maintain clear documentation of models, workflows, and best practices. Required Skills & Qualifications 5+ years of professional experience in AI/ML development. Bachelor s or Master s degree in Computer Science, Data Science, Engineering, or related fields. Expertise in AI/ML frameworks such as TensorFlow, PyTorch, and scikit-learn. Proficient in programming languages like Python or R. Strong skills in data processing and analysis tools such as Pandas and NumPy. Experience with cloud AI/ML platforms like AWS SageMaker, Google AI Platform, or Azure ML. Excellent analytical, problem-solving, and communication skills. Ability to manage multiple projects independently and collaboratively. Preferred Qualifications Experience with advanced ML algorithms including deep learning, reinforcement learning, etc. Familiarity with Big Data technologies such as Hadoop, Spark, or Kafka. Knowledge of CI/CD pipelines tailored for AI/ML model deployment. Experience working in Agile environments. Research publications or contributions to AI/ML journals or conferences. Be part of a cutting-edge AI/ML team driving innovation. Work on challenging and impactful projects with a talented and collaborative team. Grow your skills with ongoing learning and development opportunities. Enjoy a dynamic work environment focused on technology and innovation. Qualification : Bachelors or Masters degree in Computer Science, Data Science, Engineering, or related fields.

Imagine yourself Growing your expertise and expanding your skillset with every project. Owning your ambition and fueling your career growth. Collaborating with a vibrant, diverse, global team. About Hach At Hach, a Veralto company, we ensure water quality for people around the world and every team member plays a vital role in our mission. Since our founding, we ve been dedicated to making water analysis better faster, simpler, greener, and more informative. Through teamwork, customer partnerships, passionate experts, and reliable, easy-to-use solutions, we empower industries, governments, and communities to ensure access to safe, clean water. Learn more: www.hach.com/about-us Flexible working hours Professional onboarding and training Collaborative and supportive team environment Career coaching and development opportunities Comprehensive health benefits About the Role Title: Service & Spares Sales Engineer Reports to: Assistant Zonal Manager - Services & Spares Sales (East) Department: Sales In this role, you will be responsible for driving recurring revenue from service and spares sales in your territory, providing technical service and customer support, and building strong relationships with customers to ensure satisfaction and loyalty. Key Responsibilities Respond to customer service calls and ensure quick turnaround times. Complete preventive maintenance (PM) as per schedule. Plan and execute installations, commissioning, and product demonstrations. Build and maintain strong customer relationships to enhance satisfaction and identify further service opportunities. Generate sales leads and pass them to the marketing and sales teams. Achieve monthly, quarterly, and annual service sales targets for the assigned region. Maintain discipline and accuracy in using CRM platforms such as ServiceMax and SFDC. Qualifications & Requirements Engineering Degree / Diploma with 3-4 years of relevant experience, preferably in working with Hach products or similar technologies. Willingness to relocate within India based on company requirements. Willingness to travel extensively within your territory. Strong written and verbal communication skills in English. Proficient in MS Excel and MS Word. Strong eye for detail, proactive approach, and action-oriented mindset. Ability to work effectively in cross-cultural, cross-functional teams. Passion for driving business growth in a fast-evolving market. Strong problem-solving skills with the ability to develop innovative customer solutions. Excellent interpersonal skills to build and maintain customer relationships. Play a key role in shaping Hach s and Veralto s business in Asia, one of our most important and fastest-growing regions. Be part of a culture that fosters continuous improvement, open communication, and well-being. Contribute to a global mission that directly impacts climate change, public health, and environmental safety. About Veralto Hach is proud to be part of Veralto (NYSE: VLTO), a $5 billion global leader dedicated to ensuring clean water, safe food and medicine, and trusted essential goods. When you join Veralto s global network of 16,000 associates, you join a unique culture where purpose meets possibility. You ll gain opportunities to deepen your skills, pursue your ambitions, and make a measurable impact every day. Diversity, Equity & Inclusion At Veralto, diversity and inclusion are core to who we are. We celebrate differences and believe diverse perspectives drive innovation and excellence. We are an equal opportunity employer, evaluating applicants without bias toward race, gender, age, religion, or other protected characteristics. Together, we re Safeguarding the World s Most Vital Resources .

Introduction In this role, you ll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe. You ll work with visionaries across multiple industries to improve the hybrid cloud and Al journey for the most innovative and valuable companies in the world. Your ability to accelerate impact and make meaningful change for your clients is enabled by our strategic partner ecosystem and our robust technology platforms across the IBM portfolio; including Software and Red Hat. Curiosity and a constant quest for knowledge serve as the foundation to success in IBM Consulting. In your role, you ll be encouraged to challenge the norm, investigate ideas outside of your role, and come up with creative solutions resulting in ground breaking impact for a wide network of clients. Our culture of evolution and empathy centers on long-term career growth and development opportunities in an environment that embraces your unique skills and experience. Your Role and Responsibilities Skilled Multiple GCP services GCS, BigQuery, Cloud SQL, Dataflow, Pub/Sub, Cloud Run, Workflow, Composer, Error reporting, Log explorer etc. Must have Python and SQL work experience & Proactive, collaborative and ability to respond to critical situation Ability to analyse data for functional business requirements & front face customer Required Technical and Professional Expertise Intuitive individual with an ability to manage change and proven time management Proven interpersonal skills while contributing to team effort by accomplishing related results as needed Up-to-date technical knowledge by attending educational workshops, reviewing publications Preferred Technical and Professional Expertise Skilled Multiple GCP services GCS, BigQuery, Cloud SQL, Dataflow, Pub/Sub, Cloud Run, Workflow, Composer, Error reporting, Log explorer You love collaborative environments that use agile methodologies to encourage creative design thinking and find innovative ways to develop with cutting edge technologies Ambitious individual who can work under their own direction towards agreed targets/goals and with creative approach to work

Position: Senior Manager Network Sort Centre Location: Kolkata Department: Operations Experience Required: 5 7 Years About the Role: We are seeking a highly capable and experienced Senior Manager Network Sort Centre to oversee the efficient operations of our sort center network in Kolkata. This role is pivotal in ensuring high standards in productivity, quality, and customer satisfaction while driving warehouse process optimization and team performance. The ideal candidate will bring expertise in warehouse/sort center operations, team leadership, and logistics management, with a strong preference for experience in e-commerce or automation-heavy environments. Key Responsibilities: Lead and manage sort center operations to ensure peak efficiency and high levels of customer satisfaction. Develop and optimize warehouse systems by analyzing storage requirements, inventory flow, equipment utilization, gate processes, and shipping methods. Establish operational goals and KPIs; monitor and manage performance to meet or exceed targets. Train, mentor, and lead warehouse teams to resolve day-to-day issues and drive operational excellence. Oversee inventory control and logistics, ensuring smooth coordination between inbound, storage, and outbound processes. Design workflow, space allocation, and equipment layout to support volume scalability and efficiency. Maintain a safe, compliant, and well-regulated work environment by enforcing SOPs and adhering to legal and safety standards. Daily Responsibilities: Supervise daily warehouse functions including inventory management, floor productivity, shipping, quality control, and customer service. Schedule and allocate manpower to meet daily fulfillment demands while minimizing overtime and maintaining output quality. Conduct regular inspections and manage the upkeep of warehouse equipment and tools. Collaborate with warehouse leads to assess productivity and loss prevention, and implement actionable improvement plans. Oversee end-to-end logistics operations, coordinating with transportation partners (including drivers and air carriers) to ensure timely and efficient delivery of goods. What You Bring: 5 7 years of experience in warehouse or sort center management, preferably in e-commerce or logistics. Strong leadership and operational planning skills. Experience in sort center automation and process optimization. Proven ability to lead large teams and deliver results under high-pressure environments. Solid understanding of inventory systems, WMS, and logistics coordination. MBA from a Tier 1 B-School is highly preferred. Excellent communication, analytical, and organizational skills. Qualification : MBA from a Tier 1 B-School is highly preferred

Cineverse is seeking a dynamic and detail-oriented Business Development Coordinator to join our C360 advertising team. This internal-facing role is pivotal in driving the research, origination, and organization of business leads while ensuring the smooth operation of cross-functional workflows and stakeholder collaboration. The ideal candidate will excel in meeting lead management targets set, CRM configuration, data validation, and team support, contributing to the expansion and success of our advertising partnership initiatives. Key Responsibilities: Lead Origination & Research: To understand the basic business structure of Cineverse to identify and research potential global business opportunities for Cineverse s C360 advertising division. Generate, organize, and prioritize leads to align with business objectives and growth strategies. Meet set lead generation targets Conduct market research to identify potential partnerships across streaming platforms, channel,s and apps Managing back end for monitoring active deals CRM Management: Configure and maintain lead information within Zoho CRM to ensure accuracy and usability. Organize and validate data, ensuring stakeholders have real-time access to updated client leads and project status. Develop and refine processes for effective CRM utilization and reporting. Cross-Functional Collaboration: Collaborate with ad sales, ad operations, and other departments to align strategies and workflows. Communicate effectively with internal teams to ensure smooth project execution, client onboarding, and overall client satisfaction. Presentation Support: Contribute to the development of presentations, providing insights, data, and visual materials as required. Assist in the preparation of client-facing and internal pitch materials. . Qualifications: Education: Bachelor s degree in Business Administration, Marketing, Communications, or a related field. Equivalent work experience will be considered. Experience: 1-3 years in business development, lead generation, or related roles, within advertising or media industries. Familiarity with Zoho CRM or similar customer relationship management platforms. Proven experience managing or mentoring team members. Experience in OTT CTV ad space is a plus. 1-2 years of outbound sales experience is a plus. 1-2 years of client-facing roles is a plus. Prior experience working in US markets will be preferred Skills: Strong organizational and analytical skills with a meticulous eye for detail. Excellent verbal and written communication skills. Ability to collaborate across multiple departments and manage competing priorities. Proficiency in presentation tools such as PowerPoint or Google Slides. Attributes: Self-starter with a proactive approach to problem-solving and process improvement. Comfortable working in a fast-paced, evolving environment. Team-oriented with a commitment to fostering collaboration and shared success. Qualification : Bachelors degree in Business Administration, Marketing, Communications, or a related field. Equivalent work experience will be considered.