Briefcase
Career

Work On  
Grow with people who build to last.

We are engineers, designers and problem-solvers across India, Ireland, Europe and the USA.

If you want to do work that actually ships and stays, we should talk.

For job-related queries, contact HR at +91 89815 40309

Career Image
checklist board
Open Positions

Current Opportunities

Business Development Manager (IT)

  • Sales
  • Business Development
  • Mailchimp
  • Linkedin
  • CRM
  • Lead Generation

We are hiring a Business Development Manager with proven experience in software services sales (full-stack, AI/ML, cloud, automation, Mobile & Web Apps).

Key Responsibilities

  • Generate and qualify leads specifically for software/IT services
  • Run cold email campaigns (Mailchimp, LinkedIn, CRM).
  • Build and manage SME client relationships in global markets (US/EU focus).
  • Drive proposals, presentations, and deal closures.

Requirements

  • 4 yrs of business development in software services / IT consulting.
  • Fluent spoken & written English.
  • Strong skills in lead generation, cold outreach, and email marketing tools.
  • Based in Kolkata / West Bengal
  • Applications without relevant software/IT sales experience will not be considered.

Salary + incentives based on performance.

***Candidates with software industry exposure only may apply.

Apply for this Position

India+91
Allowed file size: 4 MB

Salary + incentives based on performance.

***Candidates with software industry exposure only may apply.

Mid-Level Laravel Developer

  • Laravel
  • PHP
  • JavaScript
  • MySQL
  • Python
  • GIT

We're looking for a Laravel Developer to join our back-end development team and help build reliable, scalable web applications.

What You'll Do

  • Write clean, efficient PHP code using Laravel
  • Build and maintain web applications and RESTful APIs
  • Develop and maintain backend components using Python where required
  • Integrate Python-based services, scripts, or microservices with Laravel applications
  • Debug issues and optimise applications for speed, performance, and reliability
  • Collaborate with front-end teams for seamless system integration
  • Stay updated on Laravel and Python best practices, frameworks, and industry trends

What We're Looking For

  • 2–3 years of hands-on experience in Laravel development
  • Strong proficiency in PHP, HTML, JavaScript, CSS, and MySQL
  • Python knowledge is very important, with practical experience in backend development or scripting
  • Proficient with Git and database design principles
  • Understanding of API integrations and backend architecture
  • Degree in Computer Science or a related field
  • Strong problem-solving skills with clear communication abilities

Frontend Developer (React Js)

  • React JS
  • JavaScript
  • TypeScript
  • Redux
  • Tailwind CSS
  • REST APIs

Collatzinc is hiring a React JS Developer to build clean, scalable, production-ready frontend apps. 3+ years | Kolkata | Full-time

Key Responsibilities

  • Build and maintain React-based web applications
  • Implement frontend logic, API integrations, state management and reusable modules
  • Work with Redux, RTK Query and WebSocket-based features where needed
  • Create reusable components and maintain clean frontend architecture
  • Collaborate with backend devs, designers, QA, and project leads
  • Debug, optimize, and improve existing frontend code
  • Use AI-assisted tools responsibly for coding, debugging, refactoring, and documentation

Required Skills

  • 3+ years frontend development
  • Strong React JS, JavaScript, HTML5, CSS3
  • Experience with Redux, Redux Toolkit / RTK Query and WebSocket-based integrations
  • Experience with TypeScript
  • React Hooks, routing, component-based architecture, state management
  • Tailwind CSS, Material UI, Bootstrap or similar libraries
  • REST API integration
  • Git and standard dev workflows
  • Responsive design and cross-browser compatibility
  • Clean, reusable, maintainable code
  • Comfort with AI-assisted dev tools and writing clear prompts for AI coding
  • Python (AI features, automation, backend-adjacent tasks)
  • Testing tools: Jest, React Testing Library, or Cypress
  • Experience with dashboards, admin panels, SaaS, or business apps
  • Ability to critically review and validate AI-generated code, ReactJS: 3 years (Required)

QA Engineer

  • Manual Testing
  • QA
  • SDLC
  • Bug Tracking
  • Regression Testing

We're looking for a detail-oriented Software Tester / QA Analyst to ensure our applications meet high standards of quality and performance. Kolkata | 1-4 yrs exp | Full-time

Key Responsibilities

  • Write and execute test plans, cases, and scripts
  • Perform manual testing; exposure to automation is a plus
  • Identify, document, and track defects using bug-tracking tools
  • Run regression testing and validate fixes
  • Work with developers and PMs to align testing with requirements

Requirements

  • 1-4+ years of experience in software testing / QA
  • Knowledge of QA methodologies and SDLC
  • Hands-on with test management & bug tracking tools

Online Bidder (Intern)

  • Sales
  • Marketing
  • Lead Generation
  • Proposal Writing

We're looking for a sharp intern with a B-School background and a flair for sales and marketing.

Key Responsibilities

  • Research leads and opportunities across platforms
  • Bid on Online platforms (with guidance)
  • Write tailored proposals
  • Track responses and follow up
  • Support profile building and client communication

You Fit If

  • B-School fresher / junior
  • Strong English (written and spoken)
  • Detail-oriented and comfortable with outreach
  • Interested in sales, marketing, and tech
  • Bonus: Exposure to bidding platforms

Online Bidder (Senior)

  • Online Bidding
  • Upwork
  • Freelancer
  • Business Development
  • Negotiation

Collatzinc Pvt Ltd is a fast-growing software services company delivering web and mobile solutions to global clients.

Key Responsibilities

  • Bid on platforms like Upwork, Freelancer, Fiverr, Guru to win projects
  • Build and maintain company profiles to attract clients
  • Write tailored proposals, handle negotiations, and close deals
  • Coordinate with technical teams for accurate estimates and delivery
  • Manage client relationships and ensure repeat business

Requirements

  • 3+ years experience in online bidding & business development for software services
  • Proven success on major freelancing platforms
  • Strong English communication, proposal writing, and negotiation skills
  • Understanding of web/mobile development and digital marketing

Web Designer / Visualizer

  • Figma
  • Photoshop
  • Adobe XD
  • HTML5
  • CSS3
  • UI/UX

We are looking for a creative and passionate Web Designer with 2 to 5 years of experience, strong visual design skills and hands-on experience in responsive website design. (WFO-Kolkata)

Key Responsibilities

  • Design responsive and visually appealing websites
  • Ensure website performance, quality and responsiveness; work collaboratively with teams and independently when required
  • Stay updated with the latest web design trends and technologies
  • Visual Problem Solving: strong critical thinking skills with the ability to transform complex briefs into clear, creative, and visually engaging design solutions

Required Skills

  • Figma, Photoshop, Adobe XD, HTML5, CSS3, JavaScript, jQuery, Illustrator, CorelDRAW
  • Responsive Web Design & UI/UX understanding
  • Professional-level English reading and speaking skills
  • Basic animation or motion design skills would be an added advantage