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

Rejolut is one of the award winning fastest growing emerging tech company which is working on leading technology like Blockchian, ML & AI, Complex mobile & web apps, IoT etc.

The ideal candidate will be responsible for developing highly scalable and secure code.

Responsibilities:-
-Able to take the Extreme Ownership of modules/product/projects
-Able to learn & implement new technology/framework/library/networks at God Speed
-Able to come with optimal solution for the business problem
-Can handle calls with the client & customer to know their feedback
-Writing clean code & able to dig into other's code or open source code

Desired Candidate Profile:-

• Setting up and configuring Full node clients for various Blockchains.
• In Depth understanding of atleast two blockchain network like Ethereum, Hedera Hashgraph, Tezos, Hyperledger, BlockApps, Algorand, Corda etc
• Working closely with DevOps to make blockchain infrastructure robust and scalable.
• Designing and writing well-structured APIs in Node.js to connect to Blockchain infrastructure.
• Develop and manage various applications to integrate Blockchain infrastructure into the main product.
• Staying up to date with new developments and news in integrated chains, like forks, main net launches, migration.
• Documenting architecture and guidelines.
• Always being on the lookout to enhance technology, by finding and making new tools, utilities, and libraries.
• Managing and enhancing a cutting edge tech stack, comprising of Node.js, ES2016/17 (Javascript), AWS, MongoDB, SQL
• Cross-team contribution whenever required.
• Familiarity with basic cryptography
• Familiarity with P2P networks

Culture

- Fast-paced, intellectually stimulating, steep learning, and growth

- Close-knit, hardworking, supportive colleagues

- Challenging work

- Flat organization with no hierarchy

- If you like problem solving, and love latest technology, there are very few better places

How we are different 
 -We are young and dynamic team who are obsessed with solving business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to business problem rather than technology

 Why to join us
 -We provide huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry

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.

Mass hiring for Web Consultant /Senior Website Consultant to join our growing team at Starway Web Digital.

Job Title: Senior Website Consultant

Shift Time: 8:00 PM – 5:00 AM (US Shift)

Working Days: Monday to Friday

Weekends: Off

Monthly Salary: Rs.15,000 to Rs.40,000

Salary - 10% to 20% hike on last drawn salary.

Lucarative Incentives

On time salary

Location: Primac Tower, Salt Lake Sector V Kolkata

Requirements:

- Minimum 1 year of experience in website selling (mandatory).

- Strong proficiency in spoken and written English.

- Experience working in an outbound international B2B sales process.

- Excellent communication, negotiation, and persuasion skills.

- Ability to understand business needs and present relevant solutions.

- Comfortable working a night shift (US timing).

- Self-motivated, target-driven, and results-oriented mindset.

Incentives: Lucrative performance-based incentives

A) Skills Required

Essential Skills (Two top

skills)

3 possible combinations.

1. Candidate having expertise in both ElasticSearch and Kafka, preferably.

OR

2. Candidate having expertise in ElasticSearch and willing to learn Kafka.

OR

3. Candidate having expertise in Kafka and willing to learn ElasticSearch.

B) Other Information

Educational Qualifications Graduate

Experience Mid-Level (6+ years)

Minimum Qualifications:

ElasticSearch/OpenSearch

· Software Lifecycle/programing skills

· Linux

· Python

· Ingestion tools (logstash, OpenSearch Ingestion, Fluentd, fluentbit, Harness,

CloudFormation, container, images, ECS, lambda).

· SQL query

· Json

· AWS knowledge

Kafka/MSK

· Linux

· In-depth understanding of Kafka broker configurations, zookeepers, and

connectors

· Understand Kafka topic design and creation.

· Good knowledge in replication and high availability for Kafka system

· Good understanding of producers and consumer group

· Understanding Kafka partitions and scaling up

· Kafka latency/lag and throughput

· Integrating Kafka connect with various data sources can be internal or external.

· Kafka security using SSL/Certs

We are looking for an SEO Executive to coordinate SEO efforts, including onsite and offsite optimization and keyword expansion research. You’ll also oversee paid search campaigns to ensure their success.

Roles & Responsibilities –

·        Develop and execute successful SEO strategies.

·        Conduct keyword research to guide content teams.

·        Review technical SEO issues and recommend fixes.

·        Optimize website content, landing pages and paid search copy.

·        Direct off-page optimization projects.

·        Collect data and report on traffic, rankings and other SEO aspects.

·        Work with social media and PPC teams to optimize campaigns.

·        Keep abreast of SEO and integrated marketing trends.

Requirements –

·        Proven experience as SEO EXECUTIVE, SEM EXECUTIVE or similar role.

·        2+ years of proven experience in relevant field.

·        Knowledge of standard and current SEO practices.

·        Excellent communication skills.

·        Strong organizational and leadership skills.

JOB DESCRIPTION / ROLES & RESPONSIBILITY

Job Title
Customer Experience Champion

Location
Chennai, Mumbai, New Delhi, Kolkata, Hyderabad, Bangalore

Salary
INR 4,00,000 – 5,00,000 per annum

Position Summary

As a Customer Experience Champion, you will work as part of SunEdison’s Customer Experience team. This role requires a results-focused individual who can liaise with our Customer Experience, Sales and Operations teams. Further, supporting the Sales teams, to deliver high-quality service to SunEdison’s clients. This position is created for calling active and budding clients to encourage understanding of our product. Addressing clients' uncertainties, grievances, and suggestions on time. Noting important details of each conversation. Must be comfortable in presenting products or services over the phone as well as dealing with doubts. If you have a passion for delivering measurable results and client success, we want to hear from you.

The Objectives of this role include

• Directly leads all aspects of a team of a max of 10 Individual Contributors including the sales team, operations team and customer experience specialists.
• Partner closely with Sales and Operations Team in their respective region
• Ensure timely submission and follow-up on all call information submitted across businesses
• Arrange Client meetings with the Sales Team
• The goal is to help the company grow by bringing in customers and developing business
• Correspondence to clients like clarifications, queries, and other details about our business
• Convincing customers to close the lead and grow the business
• Follow up with the client, may include site visit as well
• Relationship management
• Drive to engage clients on new products and features
• Understanding customer journey thoroughly
• Coordinating customer requests with internal stakeholders (ops team, survey team)
• Coordinating customer’s requests with external stakeholders (Distribution Companies, etc)

Position Responsibility

• Contact potential or existing customers to inform them about a product or service using scripts
• Answer questions about products or the company and ask questions to understand customer requirements to close sales
• Handle grievances to preserve the company’s reputation
• Go the “extra mile” to meet sales quota and facilitate future sales
• Keep records of calls and sales and note useful information
• Directly communicating between the Client and SunEdison’s team and performance management
• Manage and coordinate inter-team-members relationships
• Team level Key Performance Indicators
• Bridge the gap between client, sales team and operations team for Solar Panels
• Noting down customer requests exhaustively
• Ultimate focus on delighting the customer
• Pulling in the relevant subject matter expert in their conversation with the customer as and when required.
• Ensuring all teams deliver to customers in their respective TAT

Position Experience

• Minimum 1-3 years of relevant experience, preferably worked in a BPO Industry, Energy Sector, B2C relationship management, customer service (servicing internal or external customers), consumer-facing sales organization handling inbound & outbound calls, CRM systems.

Position Academic Qualification

• Graduation in any discipline.

Desired Technical Skills

• MS Excel tools and Basic CRM Tools
  
  

Desired Soft Skills

• Should have attention to detail
• Communication Skills (Verbal and Written)
• Interpersonal Skills
• Analytical & Problem-Solving Skills
  
  

Language Proficiency

• English- Must Have
• Hindi/Bengali/Telugu/Assamese/Gujarati/Kannada/Marathi – Good to have

We are looking for young enthusiastic candidates who have knowledge on development in PHP & MySQL. Requirements are specified in the following points.

• Selected Candidate needs to work as a sole developer / work with other developers depending on the project.
• Selected Candidate needs to handle live projects from day 1.
• Some of our projects include Travel Portal, Airline Booking System, Hotel Booking system, eCommerce Portal etc. We prefer candidates with knowledge in these fields.

• Demonstrate, present and promote services to salons, spas & gyms (Beauty & Wellness Industry)
• Should have excellent verbal & presentation skills
• Knowlege of local language is a must
• Should be inovative and target driven
• Willing to travel
• Demonstrate honesty & integrity

• Sales and marketing of travel related products and services to various corporate and business houses.
• Corporate relationship build up
• Business Development

• Graduation : Graduation ( Any)
• Fluent in English
• Shall be smart, dynamic and motivated
• Willing to travel.
• 2-6 years of experience in travel industry / corporate sales (preferable).
• Compensation :
• Salary - As per Industry Standard.
• Benefits - Incentive, Mobile bills and Convenience, Health Insurance (post confirmation)