
CartX is a small, fast-growing, and remote-first company. We are a high converting one-page checkout and post-purchase one-click upsell for thriving eCommerce stores. We are looking for a Senior Software Engineer to join our mission and work on our ambitious product roadmap. Ideal candidates have a solid technical background on complex systems.
→ What you will be doing:
– Solve engineering problems that affects hundreds of customers
– Develop and launch end-to-end new key features
– Take ownership and responsibility of challenging tasks
– Interact and collaborate with the team
– Research, innovate and propose new ideas that can lead to new projects
– Play an important role by shaping our company’s best practices and culture
– Learn fast and adapt quickly
→ Required
– 5+ years of experience as a Software Engineer
– Experience on LAMP
– Experience on Bitbucket
– Knowledge on API’s such as Twilio, Stripe and others
– Great communications skills
– Fluent in English (written and speaking)
→ What We Offer
- Work remotely from home or any co-working space
- Work with a top-notch engineering team
- Unlimited vacation policy
- Ownership and autonomy over exciting tasks
- Be part of an exciting fast-growing startup

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Job Title: Senior Java Architect (12+ Years Experience)
Location: Remote (2 PM - 11 PM IST)
Experience: 12+ Years
Salary: ₹15L - ₹21L/yr
Employment Type: Contract (1 Year Extendable)
Job Description:
We are looking for a highly experienced Java Architect to join our team on a long-term contract basis. The ideal candidate should have deep expertise in designing scalable enterprise applications using Java and microservices architecture. The candidate should be capable of driving architecture decisions, mentoring development teams, and delivering high-performance solutions for enterprise-grade systems.
Key Responsibilities:
- Design and architect scalable enterprise applications using Java and microservices
- Lead system design and architecture decisions for complex applications
- Develop and implement microservices architecture patterns
- Drive technical architecture across multiple development teams
- Mentor and guide senior developers and engineering teams
- Handle high-traffic, scalable enterprise application architecture
- Collaborate with stakeholders to define technical requirements and roadmaps
- Ensure system performance, scalability, and reliability
- Review code and architecture designs for best practices
- Work with Spring Boot, Spring Cloud, and modern Java frameworks
Required Skills & Qualifications:
- 12+ years of hands-on experience in Java development and architecture
- Strong expertise in microservices architecture and design patterns
- Deep knowledge of system design principles and enterprise architecture
- Hands-on experience with Spring Boot and Spring Cloud
- Experience designing scalable, high-performance enterprise applications
- Proficiency in RESTful APIs, messaging systems, and API gateways
- Strong understanding of cloud platforms (AWS, Azure, or GCP)
- Experience with containerization (Docker) and orchestration (Kubernetes)
- Knowledge of database design (SQL and NoSQL)
- Expertise in JVM tuning and performance optimization
Technical Skills:
- Java 11+ (Java 17/21 preferred)
- Spring Boot, Spring Cloud, Spring Security
- Microservices architecture and design patterns
- RESTful APIs, GraphQL, gRPC
- Apache Kafka, RabbitMQ, or similar messaging systems
- Docker, Kubernetes, CI/CD pipelines
- PostgreSQL, MySQL, MongoDB, or similar databases
- Redis, Elasticsearch, or caching solutions
- Maven, Gradle, Git
Additional Requirements:
- Ability to work 2 PM - 11 PM IST (US/Europe Shift Timing)
- Immediate availability or short notice period (15 days max)
- Strong problem-solving and analytical skills
- Excellent communication skills for stakeholder collaboration
- Experience mentoring technical teams
- Contract commitment for a minimum of 1 year (extendable)
Good to Have (Preferred Skills):
- Experience with reactive programming (WebFlux, Project Reactor)
- Cloud certification (AWS Solutions Architect, etc.)
- Experience with observability tools (Prometheus, Grafana)
- Knowledge of domain-driven design (DDD)
- Experience with multi-cloud or hybrid cloud architectures
- Freelance/contract experience (preferred)
What We Offer:
- 1.2 ~ 1.8 LPM fixed contract salary
- Long-term contract (1-year extendable)
- Remote work with a flexible 2-11 PM IST schedule
- Work with cutting-edge enterprise technologies
- Opportunity to architect large-scale systems
- Collaborate with experienced engineering teams
- Immediate start for the right candidates
Opportunity :
We are looking for Backend Developers who are passionate about solving problems. We offer a result-driven, fun, and dynamic environment. So far, we've built a reasonably-sized, high-powered team and are always striving to be the best place to work we can be.
Our Tech Deck :
- Architecture
- Linux
- Docker
- HAProxy
- Nagios
- Munin
- Backend & Servers
- PHP
- MySql
- MongoDB
- Redis
- Memcached
- Frontend
- JavaScript
- jQuery
- Sass/Less
- GruntJs
- Bower
- NPM
- Repositories
- Git
- Collaboration
- Slack
- Evernote
- Google Drive
Your Part :
- You shall be part of our design and development team. You shall be assigned one or multiple modules, wherein you shall:
- Write backend code and APIs, maintain the database and cache.
- Rapidly develop next-generation scalable, flexible, and high-performance systems.
- Act as an intermediary for problems, with both technical and non-technical people.
- Collaborate with the team to prioritize projects and ensure on-time completion.
Preferred Qualification & Experience :
- Bachelor's Degree in Computer Science or equivalent experience/knowledge
- 5+ Years of hardcore development experience in one or more backend frameworks and languages like JavaScript (NodeJS, Express), PHP (and other languages and frameworks).
- Working knowledge of both Unix and Windows in a software development setting prefer strength in Unix (all flavors) environment.
- Strong HTTP fundamentals.
- Basic networking knowledge.
- Familiarity with relational database concepts and RDBMS systems such as MySQL etc.
- A solid understanding of REST principles, and experience writing backend code to change or design APIs.
- Worked on NoSQL databases like Memcache, Redis, MongoDB etc.
- Proficient understanding of code versioning tools, such as Git
Preferred Skills & Abilities :
- As a Developer:
- Write clean, manageable code and maintain proper documentation
- Continuously discover, evaluate, and implement new technologies and frameworks to maximise development efficiency
- Excellent command over Data Structures and Algorithms
- Familiarity with continuous integration
- Strong problem solving and analytical skills
- Knack for benchmarking and optimization
- Passion for quality and innovation
- An eye for detail
- As a team player
- Collaborate with cross-functional teams to define, design, and ship new features
- Ability to manage and drive small teams
- Ability to work independently in small teams
- Estimate timelines and deliver as per schedule
- Responsible and capable of meeting tight deadlines
- Thrive in a variable and demanding startup environment
- Collaborate with multiple disciplines like product, engineering, marketing, research and support, and enjoy working in a collaborative environment
- Understand technical and business needs and fulfil them
Requirements:
- Should have sound knowledge of PHP, MySQL, JQuery & javascript.
- Should know MVC framework Yii/Yii2
- Knowledge of mobile app APIs, JSON, etc.
- Knowledge of version control systems like GIT is a plus.
- Strong analytical and problem-solving skills.
- Troubleshoot and fix any issues relating to PHP programs.
Highlights:
- Working 5 days a week.
- Group Health Insurance for our employees.
- Work with a team of 200+ excellent engineers.
- Extra Compensation for Night Shifts.
- Additional Salary for an extra day spent in the office.
- Lunch buffets for all our employees.
- Yearly and quarterly awards with CASH amount, Dinner coupons, etc
- Team Dinners on Project Completion.
- Festival celebration, month end celebration and much more.
Responsibilities :
- Assist in requirements gathering and technical planning to design solutions that meet client needs
- Create clean, well-documented, efficient, and standards-compliant code with an eye towards performance optimization
- Actively troubleshoot and support applications in production-- critical environments
- Implement and maintain Shopify development standards and best practices
- Tracks the work against plan and reports the status on agreed time without fail.
- Interface with the clients to understand and document their needs.
Primary Technical Skills:
Shopify and Shopify Plus
PHP
OOPS
JavaScript
XML
JSON
Basic Knowledge in React JS
Soft Skills
- Good oral and written communication.
Required Skills:
- 3 to 5 years of experience in working with Shopify and Shopify Plus stores
- Good knowledge of frontend development and liquid programming language
- Strong hands to Install & Customize new Shopify theme.
- Basic experience in writing Ruby scripts to run promotions
- Experience in integrating external API’s
- Experience in 3rd party integrations like ERP- Netsuite, SAP, Odoo, Microsoft Dynamics, Sage, Epicor etc.
- Experience in Implementing Shopify Ajax API, Admin APIs and configuring third party apps
- Knowledge of building custom, private and embedded apps
- Experience working with the following technologies: JavaScript (JQuery), XML, JSON, SQL, PHP, CSS3
- Knowledge in other ecommerce platforms like Magento, woocommerce, BigCommerce will be preferred.
- Experience with OOP PHP (2+ years)
- Familiarity with GIT
- Demonstrated ability to adapt and work with team members of various experience levels
- Ability to work with minimal direction with a focus on customer satisfaction
- Good written and verbal communication skills
PHP / Laravel / CI developer duties and responsibilities
- Develop, record and maintain cutting edge web-based PHP applications on portal plus premium service platforms.
- Build innovative, state-of-the-art applications and collaborate with the frontend development team.
- Ensure HTML, CSS, and shared JavaScript is valid and consistent across applications.
- Prepare and maintain all applications utilizing standard development tools.
- Utilize backend data services and contribute to increase existing data services API.
- Lead the entire web application development life cycle right from concept stage to delivery and post launch support.
- Convey effectively with all task progress, evaluations, suggestions, schedules along with technical and process issues.
- Document the development process, architecture, and standard components.
- Coordinate with co-developers and keeps project manager well informed of the status of development effort and serves as liaison between development staff and project manager.
- Keep abreast of new trends and best practices in web development.
PHP / Laravel / CI developer requirements and qualifications
- Previous working experience as a PHP(Laravel/CI) developer for minimum 3 years.
- Proficient with JavaScript, JQuery and AJAX.
- In depth knowledge of object-oriented PHP (>=Laravel 7 or >=CI 4.0) framework.
- Should know about source version control like GIT or SVN
- Familiar with AWS & Linux command line will be added advantage.
- Understanding and implementing security and data protection
- Must be a team player with good communications.
- Ability to solve problems quickly and efficiently.
- Great aptitude and attitude towards learning.
- Take full responsibility for task/project execution.
- Ability to prioritize own work and respect deadlines.
Role: Senior Software Engineer – Backend Location: Bangalore / Gurgaon / Pune
About the Role
The successful backend engineer will work closely and collaboratively with cross functional teams during all phases of the software development lifecycle.
The incumbent should be competent to provide quick solutions to problems and taking a product or a product’s component through the entire life cycle, optimize the space / time complexity and improve on usability and reliability.
What you’ll be doing:
- Bachelor's degree in Computer Science or related field from top notch colleges
- 4 + years of software development engineering.
- Understanding of fundamental design principles (including MVC).
- Good hands on in AWS scalable environment.
- Experience with different RDBMS and No SQL databases like MySQL, mongo, etc.
- Experience in designing scalable micro-services required.
- Strong knowledge of CS fundamentals including data structures, algorithm design and complexity analysis.
- Proficiency in one language that emphasizes class abstractions (for e.g. Java) and have coded in it for at least 4 years.
- Excellent communication, analytical and problem solving skills.
- Strong organizational skills and the ability to prioritize and work with clients with great efficiency.
- Excellent written and oral communication and presentation skills and the ability to express thoughts logically and succinctly.
- Open minded, Team builder, Good communicator and ability to lead and inspire teams.
- Demonstrated ability to achieve stretch goals in a highly innovative and fast paced environment.
- Experience in dealing with ambiguous/undefined problems; ability to think abstractly
What are we looking for?
- 4 to 10 years of hands on design / development experience.
- Tech / M.Tech Computer Science or equivalent field from a premier institutes.
- Proficient in Java OR C/C++, data structures, algorithms and OO design / design patterns.
- Strong understanding of Computer Science fundamentals.
- Technical depth in OS, computer architecture and OS internals.
- Ability to write scalable and maintainable code.
- Self-starter and goal-oriented with strong analytical and problem-solving skills.
- Must be able to work cooperatively within a strong diverse technical community to expedite development tasks.
- Experience in Machine Learning is a plus
PS: Code review and team leading expereince is a pluys for Tech Lead role
What we offer
- Competitive salary and excellent benefits, in a diverse working environment with inspiring and hardworking colleagues
- A positive, get-things-done workplace.
- An inclusive environment that ensures we listen to a diverse range of voices when making decisions.
- Ability to learn cutting edge concepts and innovation in an agile start-up environment with a global scale.
- A flexible working environment where you can drive your outcomes.
About us
At PayU, we are a global fintech investor and our vision is to build a world without financial borders where everyone can prosper. We give people in high growth markets the financial services and products they need to thrive. Our expertise in 18+ high-growth markets enables us to extend the reach of financial services. This drives everything we do, from investing in technology entrepreneurs to offering credit to underserved individuals, to helping merchants buy, sell, and operate online. Being part of Prosus, one of the largest technology investors in the world, gives us the presence and expertise to make a real impact. Find out more at www.payu.com
Our Commitment to Building A Diverse and Inclusive Workforce
As a global and multi-cultural organization with varied ethnicities thriving across locations, we realize that our responsibility towards fulfilling the D&I commitment is huge. Therefore, we continuously strive to create a diverse, inclusive, and safe environment, for all our people, communities, and customers. Our leaders are committed to create an inclusive work culture which enables transparency, flexibility, and unbiased attention to every PayUneer so they can succeed, irrespective of gender, color, or personal faith. An environment where every person feels they belong, that they are listened to, and where they are empowered to speak up. At PayU we have zero tolerance towards any form of prejudice whether a specific race, ethnicity, or of persons with disabilities, or the LGBTQ communities.
We have an urgent opening for a SHOPIFY APP DEVELOPER with 2 to 3 years of Experience, for Day Shift working. Having hands-on experience with customizing Shopify templates and fully functional Shopify websites.
Responsibilities and Duties
Job Description:
- Understanding of various design patterns and custom Shopify app.
- Strong knowledge of liquid programming language.
- Generate custom–tailored Shopify theme and altering pre-existing template.
- Act as Shopify expert, specializing in all facets of the eCommerce platform.
- Strong hands to Install & Customize new Shopify app.
- Shopify App Development would be an advantage.
Organizational Skills :
- Must be very organized, punctual, and detail-oriented
- Fast learner & interested in new technologies
- The ability to remain cool under pressure.
Key Skills:
SHOPIFY/HTML5, CSS3, JavaScript/jQuery/AJAX.
- Write well-designed code.
- Produce detailed specifications.
- Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality.
- Contribute in all phases of the development lifecycle.
- Follow industry best practices.
- Develop and deploy new features to facilitate related procedures and tools if necessary
.Required Skills:
- Expertise in any MVC framework, RDBMS, JSON,PHP and Rest APIs.
- Good understanding of design patterns.
- Should be flexible to work on multiple technologies as per project requirements.
- Candidate should be able to handle given task independently with minimal help.
- He/She should be a team player and be able to complete assign tasks on time.









