11+ Performance tuning Jobs in Kolkata | Performance tuning Job openings in Kolkata

About the Role We are looking for a highly skilled and self-driven Senior Data Engineer to take full ownership of our database architecture and operations. This is a WFO role that blends high-level database development, database administration (DBA), and customer consultation.

You won't just be writing code in the background; you will be the primary voice for data best practices, helping our customers understand why we build things the way we do.

What You Will Do

• Database Development: Design, develop, and optimize complex T-SQL queries, stored procedures, views, and triggers.
• Database Management: Oversee database health, performance tuning, security, and backup strategies to ensure maximum uptime.
• Project Support: Act as the database subject matter expert (SME) for cross-functional project teams, ensuring data integrity and scalability in every release.
• Customer Consultation: Work directly with customers to understand their data needs. You will educate them on the "right way" to approach database solutions, guiding them away from quick fixes and toward long-term stability.
• Problem Solving: Proactively identify bottlenecks and resolve database issues before they impact the business.

Who You Are

• An Individual Thinker: You don't wait to be told what to do. You see a problem, you analyze it, and you fix it. You take full responsibility for your domain.
• A Great Communicator: You can explain complex database concepts to non-technical stakeholders with clarity, patience, and high energy.
• Customer-Obsessed: You bring a positive attitude to every interaction. You aren’t just delivering a file; you are delivering a solution that helps the customer succeed.
• Results-Oriented: You take pride in delivering top-notch work consistently. You care about the quality of your code and the stability of the systems you manage.

Requirements

• 3+ years of experience with Microsoft SQL Server (Development & Administration) or Postgres Or MySQL.
• Deep expertise in T-SQL and Schema design.
• Experience with performance tuning and query optimization.
• Strong understanding of database security and maintenance.
• Excellent verbal and written communication skills (English).

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.

Position: Account Manager Sales

Location: Faridabad/Jaipur/Kolkata/Punjab

Experience required: 1- 3 years (B2B Sales) – Field Visit for meetings

Salary Range: 3-4 LPA

Working Days: 5.5 days working (First 2 Saturdays and all Sundays are off)

Job Type: Full Time Requirement: Bike and Laptop

Role Description

We are looking for a Key Sales Manager to join our team at iTech Ecommerce Pvt. Ltd. This is a fulltime, on-field sales role. The ideal candidate will be responsible for managing and nurturing B2B leads, as well as acquiring new clients to drive business growth. Key Responsibilities:

 Identify, generate, and manage new B2B leads

 Build and maintain strong client relationships

 Conduct meetings and presentations with prospective clients

 Collaborate with internal teams to ensure client satisfaction and account growth

 Meet and exceed sales targets

 Working efficiently on CRM

Eligibility Criteria:

 Prior experience in the sales process, B2B preferred.

 Excellent lead generation, communication, and negotiation skills

 Strong interpersonal and relationship-building abilities

 Smart worker who can figure out the challenges to convert lead.

 Self-motivated person

Note: Only male candidates are preferred for this role as of now, two wheeler and a laptop (in working condition) are mandatory. 

Envizn Labs is a software solutions company specializing in web development, dedicated to crafting digital experiences that stand out. By blending innovative technology with creative strategy, Envizn Labs helps bring clients’ visions to life. Our team is passionate about delivering impactful solutions that cater to the unique needs of businesses. At Envizn Labs, we are driven by collaboration, innovation, and commitment to excellence.

Role Description

This is a full-time, on-site role for a Back Office Employee at our office in Rajarhat. The Back Office Employee will handle administrative tasks, support operational workflows, and maintain accurate records and documentation. Daily responsibilities include managing communications, supporting customer service queries, assisting financial processes, and coordinating with sales teams to ensure efficiency across departments.

Qualifications

• Proficiency in Back Office Operations, including data entry, documentation, and administrative tasks
• Strong Communication and Customer Service skills to engage effectively and resolve queries
• Basic understanding of Finance and Sales processes to support departmental activities
• Good organizational and time management skills
• Ability to work independently and collaboratively in a dynamic work environment
• Proficiency in MS Office tools is required
• Bachelor’s degree in Business Administration or any related field is preferred

**Hiring for International BPO Sales Executive for Inbound Process**

Must have experience in sales for at least 1 yr in any International Outbound BPO

Process - Travel Sales (US Shift)

Role: Need to handle inbound calls related to Flight booking, car rentals, hotel booking from US customers and convert those calls into sales

Location: Ecospace Business Park (Kolkata)

Salary - upto 25k plus Incentives upto 5 'lac

**Looking for immediate Joiner**

**Ready to work in Night Shift**

**Must have exp in US Sales Process**

**Freshers are also welcome**

Interested one can connect Uzma

Required Skills:

• Experience in systems administration, SRE or DevOps focused role
• Experience in handling production support (on-call)
• Good understanding of the Linux operating system and networking concepts.
• Demonstrated competency with the following AWS services: ECS, EC2, EBS, EKS, S3, RDS, ELB, IAM, Lambda.
• Experience with Docker containers and containerization concepts
• Experience with managing and scaling Kubernetes clusters in a production environment
• Experience building scalable infrastructure in AWS with Terraform.
• Strong knowledge of Protocol-level such as HTTP/HTTPS, SMTP, DNS, and LDAP
• Experience monitoring production systems
• Expertise in leveraging Automation / DevOps principles, experience with operational tools, and able to apply best practices for infrastructure and software deployment (Ansible).
• HAProxy, Nginx, SSH, MySQL configuration and operation experience
• Ability to work seamlessly with software developers, QA, project managers, and business development
• Ability to produce and maintain written documentation

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.

Your responsibilities could include:

• Managing your area of responsibility, including providing support, absence management, discipline and grievance, and recruitment activities
• Effectively setting out goals and objectives for your team, including those for supervisory roles that may fall under your reporting line and structure
• Acting as a role model and always behaving in line with our company values
• Driving employee engagement by personal interaction and engagement with your team in order to develop and coach them in their duties and responsibilities
• Managing contractual budgets in line with financial targets
• Ensuring all aspects of the required security services are being delivered to the customers’ satisfaction and in accordance with the contract
• Ensuring there are sufficient trained, licenced and vetted staff working at all times to meet customer and contract requirements
• Ensuring contract required training and screening / vetting has been completed for all security staff
• Developing professional customer relationships, responding appropriately to customer requests and concerns
• Completing effective health & safety assessments, ensuring accurate and timely reporting of any incidents, involvement in subsequent investigations and providing input into health & safety committees or forums.
• Completing risk assessments and site evaluations as well as completing monthly performance reports and billing schedules
•  

Skills and experience

Ideally, we’re looking for people with

• A checkable personal history including periods of education, employment, travel and unemployment
• Prior experience of working in a similar operational management role , ideally within the security industry
• A valid security industry licence or accepted certificate of security competence
• Excellent verbal and written communication skills, interacting both internally and externally
• Excellent customer service skills
• Excellent organisational skills
• Ability to successfully manage a team
• Track record of working in a fast paced and demanding environmen

JD of GC/BDE/Sr BDE- Inside Sales. 

Company Name- uFaber Edutech Pvt Ltd.

Shift Timing/ Day- 10:30am-7:30pm/ Mon-Sat working.

Website: www.ufaber.com

Who are we-

uFaber is a well-funded Edutech startup, founded by serial entrepreneurs from IIT Bombay to change the way we learn. We sell high-quality online courses on a variety of topics, from exam preparation to certifications. 

Role and Responsibilities-

• Dialing 50-80+ calls and counseling students who have enquired about the product/ services.
• Scheduling free demo lectures for the students.
• Doing post demo calls and closing sales.
• Maintaining a pipeline of all sales administration using CRM software.
• Work on targets and under pressure as this is a hardcore sales profile.
• Flexible to work on additional days and hours.

What we offer you-

•  A salary that you can't get in your current company.
• Incentives and perks that you can't imagine.
• A work culture that doesn't feel like work.

We are looking for highly motivated engineers with the following skillset-

• Engineering degree in Computer science or ECE or MCA is a must
• In-depth knowledge of PHP, HTML5, CSS, jQuery, JavaScript, AJAX
• Experience using PHP frameworks such as Laravel, Symfony, Zend, etc. - any 1 is required
• VueJS, AngularJS, ReactJS - knowledge of any 1 is required
• Between 1-5 years of work experience is required
• Very strong data structure and algorithm knowledge
• Ideal candidate would be a very strong developer with great coding skills
• Good English communication skills
• Willingness to work on multiple projects simultaneously
• Ability to work through ambiguous requirements and come up with a clear scope and problem statement
• If you have any live projects portfolio or GitHub handle please share them
• Office is in Fairlie place (Dalhousie), Kolkata 700 001