11+ Smart Contracts Jobs in Kolkata | Smart Contracts 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: Operations Executive

Location: Kolkata

Job Description:

We are looking for a highly organized and proactive Operations Executive to join our growing team. The ideal candidate will be responsible for managing the backend processes that support smooth day-to-day operations, especially in areas such as travel bookings, billing, chauffeur coordination, and customer support. The role demands a detail-oriented individual with excellent analytical skills and a commitment to accuracy and customer satisfaction.

Key Responsibilities:

1. Operational Support

• Manage and process travel bookings (domestic and international) in coordination with internal teams and third-party vendors.
• Monitor and verify billing records, ensuring all invoices, receipts, and payment details are accurate and aligned with company policies.
• Handle and coordinate chauffeur services, ensuring timely vehicle allocation, schedule adherence, and issue resolution.

2. Customer Interaction

• Respond to customer queries via email and phone in a professional and timely manner.
• Ensure customer satisfaction by providing effective resolutions to complaints, delays, or discrepancies.
• Maintain detailed logs of customer interactions, feedback, and action taken.

3. Data Management & Reporting

• Maintain and update internal databases, spreadsheets, and booking systems to ensure real-time data accuracy.
• Analyze operational data to identify inefficiencies, cost-saving opportunities, and performance trends.
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Required Skills:

• Strong numerical and analytical ability; comfort with handling data and making calculations.
• Proficiency in MS Office Suite (Excel – VLOOKUP, Pivot Tables; Word; PowerPoint).
• Excellent communication (verbal and written) in English; additional language proficiency is a plus.
• Ability to handle pressure and multitask efficiently in a fast-paced environment.
• Strong organizational and time-management skills.
• Positive attitude with a problem-solving mindset and the ability to work independently or in a team.

Experience: 0–2 years; prior experience in travel booking, billing, chauffeur services, or back-office operations is highly preferred.

Working Days: 6 days/week

Timing: 11am-9pm

Job Title: HR Recruiter

Location: Chinarpark, Kolkata

Salary: Up to ₹15,000 per month

Job Type: Full-time

Gender Preference: Male Candidate

Our key business verticals include:

• Sportiqo Fitness – A modern fitness and wellness brand.
• Anytime Fitness – A global fitness franchise promoting a healthy lifestyle.
• LawCatalyst – A legal consulting and corporate compliance firm.
• Eventigo – A creative event management and corporate branding division.
• Being Iban Media & Entertainment – Specializing in media production, promotions, and digital content.
• Being Iban Academy – Focused on professional training and skill development.

Being Iban Pvt. Ltd. offers a dynamic work culture with opportunities to grow and collaborate across diverse industries.

About the Role

We are looking for a dynamic and result-oriented HR Recruiter to manage the end-to-end hiring process across our various business units. The ideal candidate should have strong communication skills, a confident personality, and hands-on experience in recruitment. Immediate joiners preferred.

Key Responsibilities

• Handle the entire recruitment cycle — sourcing, screening, interviewing, and onboarding.
• Onboard Candidates on their Day 1.
• Source candidates via job portals, social media, referrals, and professional networks.
• Coordinate and schedule interviews with concerned department heads.
• Ensure timely closure of open positions and maintain recruitment trackers.
• Maintain candidate databases and generate hiring reports.
• Assist in onboarding documentation and HR coordination activities.
• Provide an excellent candidate experience throughout the process.

• Meet the Targeted Deadlines to fill the position.

Requirements

• Bachelor’s degree in Human Resources or a related field.
• 2–4 years of experience in recruitment (preferably in multi-sector hiring).
• Excellent communication and interpersonal skills.
• Presentable personality with a professional attitude.
• Ability to multitask and meet deadlines.
• Immediate joiners preferred.
• Male candidate only.

Job Description for Project Head for IT

• Provide technical vision and strategy for the team.
• Assess issues regarding Information Systems and create manageable solutions
• Own technical architecture for the application and infrastructure for the product
• Discover and help implement new technologies that yield competitive advantage
• Develop a company's strategy around technology and product to ensure alignment with its business goals.
• Strategic Direction for identifying and implementing new technologies
• Supervise system infrastructure to ensure functionality and efficiency
• Build quality assurance, data protection and security processes
• Use stakeholders’ feedback to inform necessary improvements and adjustments to technology
• Communicate technology strategy to partners and investors
• Setting a vision for how technology will be used in the company.
• Ensuring that technological resources meet the company's short and long-term needs.
• Creating timelines for the development and deployment of all technological services.
• Making executive decisions on behalf of the company's technological requirements.
• Managing technology budgets and time frames.
• Staying on top of technology trends and developments.
• Lead the team on design and execution of the engineering roadmap with a focus on engineering excellence in all aspects of the execution.
• Establish repeatable processes and methods that ensure a high level of productivity, quality, and reliability.

Requirements and skills

• Proven experience as a Project Head or similar leadership role with 5+ years of experience in a technology leadership role
• BSc/BA in Computer Science, Engineering or a related field; MS/MBA or other relevant graduate degree is a plus.
• Must have hands-on experience in Java, Front end technologies like Bootstrap, jQuery, Angular, AWS, Modular software development, multi-tenant architecture and highly scalable systems and Server Operating systems internals, benchmarking and performance tuning (Linux & Windows)
• Knowledge of technological trends to build strategy
• Ability to conduct technological analyses and research
• Excellent communication  and team management skills
• Leadership and organizational abilities
• Strategic thinking and problem-solving aptitude
• Experience in architecture, developing, deploying, and operating large scale, highly available, SaaS applications and services in private or public cloud.

About the company:

NowPurchase is transforming the 140B$ Metal Manufacturing industry. The metal industry forms the backbone of the economy and the fundamental block of the physical world - be it transportation, construction and every machinery. NowPurchase is building a rich, digital marketplace where Metal Manufacturers can procure high quality raw materials in a trusted manner. At the same time we are building the OS (Operating System) that will supercharge their productivity and processes to ultimately make procurement autonomous. Now Purchase raises USD 2.4 million in Nov 2021, led by Orios Venture Partners, InfoEdge Ventures.

About you: 

We are looking to add an immensely talented Senior Front End Engineer that will help us invent, design, refine and deliver products that will meet our vision. Expect to build a lot of web interfaces and dashboards both for the browser as well as native IoT enabled terminals that will be placed at the manufacturers' premises. You need to lead the front end team to make sure they are delivering high quality code and are constantly inspired to experiment with tools to push out MVPs.

Roles & Responsibilities:

• You are empowered to work directly with leadership and the product team to make decisions about your code and future of the product.
• Deliver high quality modular code deployed over web, mobile and native IoT enabled terminals that leverage REST-based services and real time sockets.. This would include visual dashboards and real time optimizations that are critical for the manufacturing process.
• Have a strong emphasis on shipping features quickly without sacrificing code quality. Be ready to build a lot of MVPs that will go through iteration or be completely scrapped depending on the outcome at the customer end.
• Own your Agile projects and lead the team from software design to implementation and deployment. Maintain sprints, delivery timelines and contribute to better managing the engineering team.
• Transform UI designs and mockups into pages and flows using CSS3 and JavaScript frameworks. Be ready to do the mockups yourself sometimes.
• Build a culture of simplicity and pragmatism, which is reflected in your elegant code that other developers emulate and you ensure through thorough code reviews and processes.
• Have an exceptional understanding of asynchronous request handling, partial page updates, and service workers and command over the internals of JavaScript, React and Redux.
• Continuously evaluate existing engineering processes and recommend improvements.

Required Skills and qualification:

• 4+ years’ experience developing rich UI/Front-end for user-facing web applications.
• Strong experience with React or similar frameworks, TypeScript, SSR (Server Side Rendering), SPA (Single Page Application), PWA (Progressive Web application), OOP (Object Oriented Programming), Reactive programming, and Unit tests.
• Demonstrated ability to function as a project leader as well as an individual contributor.
• Excellent communication and facilitation skills.

Tech Stack skills required:

• React/Redux
• Python/Django/Celery
• Git, AWS, ELB (Elastic Beanstalk), Netlify
• PostgreSQL/Redis/S3

Location: 

On- site: Kolkata, West Bengal

Compensation & Benefits:

• Cash Compensation: As per industry standards & pedigree of candidate
• ESOPs: 10% of NowPurchase is dedicated to current & future team members. Your package would entail some ESOPs so that you own a part of the company and grow along with it.
• Medical Insurance: Benefits of group insurance of 3 lakhs for family including parents, spouse, children
• Generous leave structure and WFHs including Marriage, Maternity & Paternity leaves
• Complete Relocation Expenses: We are building a unicorn out of the city of Joy (Kolkata). We will pay for everything you spend to relocate here.

Company Link: https://nowpurchase.com">https://nowpurchase.com

LinkedIn: https://www.linkedin.com/company/nowpurchase/">https://www.linkedin.com/company/nowpurchase/

HTSM Technologies Pvt Ltd is urgent looking for a skilled Content Writer to create a variety of content. These will include writing blog posts, articles, and social media postings for business and personal branding, as well as developing website content.

Roles & Responsibilities:

• Writing Clear Intent Content
• Writing the Content of Industry-Related Topics
• Creating Content for a Variety of Platforms Including Blogs, Websites, and Social Media.
• Creating User-Friendly Content
• Excellent Writing and Editing Skills in English

Qualifications & Experience:

• Experience: Minimum 1 Year of Experience

Salary:

15K - 20K/Month

Commercial / residential Building experience is a must.

Industrial building exposure will not be considered relevant experience.

Material Planning

Monitoring progress of project assigned

Coordination with Project Team, Consultants, Quantity Billing