Tech Lead - Full Stack Developer - PHP/Java/Python

Backend Engineer (MongoDB / API Integrations / AWS / Vectorization)

Position Summary

We are hiring a Backend Engineer with expertise in MongoDB, data vectorization, and advanced AI/LLM integrations. The ideal candidate will have hands-on experience developing backend systems that power intelligent data-driven applications, including robust API integrations with major social media platforms (Meta, Instagram, Facebook, with expansion to TikTok, Snapchat, etc.). In addition, this role requires deep AWS experience (Lambda, S3, EventBridge) to manage serverless workflows, automate cron jobs, and execute both scheduled and manual data pulls. You will collaborate closely with frontend developers and AI engineers to deliver scalable, resilient APIs that power our platform.

Key Responsibilities

• Design, implement, and maintain backend services with MongoDB and scalable data models.
• Build pipelines to vectorize data for retrieval-augmented generation (RAG) and other AI-driven features.
• Develop robust API integrations with major social platforms (Meta, Instagram Graph API, Facebook API; expand to TikTok, Snapchat, etc.).
• Implement and maintain AWS Lambda serverless functions for scalable backend processes.
• Use AWS EventBridge to schedule cron jobs and manage event-driven workflows.
• Leverage AWS S3 for structured and unstructured data storage, retrieval, and processing.
• Build workflows for manual and automated data pulls from external APIs.
• Optimize backend systems for performance, scalability, and reliability at high data volumes.
• Collaborate with frontend engineers to ensure smooth integration into Next.js applications.
• Ensure security, compliance, and best practices in API authentication (OAuth, tokens, etc.).
• Contribute to architecture planning, documentation, and system design reviews.

Required Skills/Qualifications

• Strong expertise with MongoDB (including Atlas) and schema design.
• Experience with data vectorization and embeddings (OpenAI, Pinecone, MongoDB Atlas Vector Search, etc.).
• Proven track record of social media API integrations (Meta, Instagram, Facebook; additional platforms a plus).
• Proficiency in Node.js, Python, or other backend languages for API development.
• Deep understanding of AWS services:
• Lambda for serverless functions.
• S3 for structured/unstructured data storage.
• EventBridge for cron jobs, scheduled tasks, and event-driven workflows.
• Strong understanding of REST and GraphQL API design.
• Experience with data optimization, caching, and large-scale API performance.

Preferred Skills/Experience

• Experience with real-time data pipelines (Kafka, Kinesis, or similar).
• Familiarity with CI/CD pipelines and automated deployments on AWS.
• Knowledge of serverless architecture best practices.
• Background in SaaS platform development or data analytics systems.

About Cognida.ai:

Our Purpose is to boost your competitive advantage using AI and Analytics.

We Deliver tangible business impact with data-driven insights powered by AI. Drive revenue growth, increase profitability and improve operational efficiencies.

We Are technologists with keen business acumen - Forever curious, always on the front lines of technological advancements. Applying our latest learnings, and tools to solve your everyday business challenges.

We Believe the power of AI should not be the exclusive preserve of the few. Every business, regardless of its size or sector deserves the opportunity to harness the power of AI to make better decisions and drive business value.

We See a world where our AI and Analytics solutions democratise decision intelligence for all businesses. With Cognida.ai, our motto is ‘No enterprise left behind’.

Position: Python Fullstack Architect

Location: Hyderabad

Job Summary

We’re seeking a seasoned Python Fullstack Architect with 15+ years of experience to lead solution design, mentor teams, and drive technical excellence across projects. You'll work closely with stakeholders, contribute to architecture governance, and integrate modern technologies across the stack.

Key Responsibilities

• Design and review Python-based fullstack solution architectures.
• Guide development teams on best practices, modern frameworks, and cloud-native patterns.
• Engage with clients to translate business needs into scalable technical solutions.
• Stay current with tech trends and contribute to internal innovation initiatives.

Required Skills

• Strong expertise in Python (Django/Flask/FastAPI) and frontend frameworks (React, Angular, etc.).
• Cloud experience (AWS, Azure, or GCP) and DevOps/CI-CD setup.
• Familiarity with enterprise tools: RabbitMQ, Kafka, OAuth2, PostgreSQL, MongoDB.
• Solid understanding of microservices, API design, batch/stream processing.
• Strong leadership, mentoring, and architectural problem-solving skills.

Skillset Summary: ReactJS, Codeigniter, YII or Laravel

Who are we?

Cartrabbit is a software-as-a-service (SaaS) product startup based in Coimbatore, building customer retention and lead generation tools for eCommerce businesses with over 50,000+ customers worldwide. An entirely modern platform that takes you to the world-class product development workflow that promisingly meets customer needs and success. Cartrabbit is committed to maintaining a safe and productive work environment, and you will be a part of an awesome SaaS product development team and incredible benefits that include:

Working on cutting-edge technologies and innovative products

Provide opportunities to work on exciting projects in a vertical B2B niche SaaS.

Opportunity to work in a Product Company

Flexible working hours

What we are looking for?

We are looking for PHP Developers with experience in Laravel to join our team. The ideal candidate should have experience in developing web applications from scratch and be able to work independently, as well as collaboratively with a team. The successful candidate will be responsible for designing, developing, and maintaining complex web applications.

What is the skill set required for this job profile?

• Candidates should have a strong knowledge of PHP.
• Write clean, well-designed code using the PHP framework, and other related technologies
• Candidates should have experience/ knowledge working with at least one PHP framework, such as Laravel, Symfony, CodeIgniter, Yii, or CakePHP. They should have a good understanding of the framework's architecture and be able to use it to develop complex web applications.
• Candidates should have experience with front-end web technologies such as HTML, CSS, and JavaScript. They should be able to create responsively and have experience with front-end frameworks such as React, Angular, or Vue.js.
• Candidates should be familiar with version control systems such as Git and be able to collaborate effectively with other developers using tools such as GitHub or Bitbucket.
• Candidates should be able to analyze complex problems and find solutions using logical reasoning and creative thinking. They should be able to troubleshoot and debug issues quickly and effectively.
• Candidates should be able to communicate effectively with team members, project managers, and stakeholders.

• Candidates should be committed to continuous learning and staying up-to-date with emerging trends and technologies in web development and PHP frameworks. They should be willing to take on new challenges and be able to adapt to changing technologies and requirements.

What you’ll be doing

• Designing and developing web applications using PHP frameworks such as Laravel, Symfony, CodeIgniter, Yii, or CakePHP
• Writing clean and efficient code that follows industry best practices and standards
• Should be able to read and understand the existing code base
• Collaborating with cross-functional teams to identify and prioritize features for new and existing applications
• Build integrations with multiple eCommerce platforms for our SaaS applications
• Implementing and maintaining third-party APIs to integrate with existing applications
• Troubleshooting and debugging applications to ensure optimal performance and usability
• Collaborating with other developers to maintain and improve existing code and applications
• Working with project managers to ensure projects are completed on time
• Testing and deploying code to production environments.
• Staying up-to-date with emerging trends and technologies in web development and PHP frameworks

Job Location: Coimbatore(work from office)

Educational Qualification:

Bachelor's degree in Computer Science  or a related degree Program

Fresher candidates with good programming language are applicable for this position.

CoreStack, an AI-powered multi-cloud governance solution, empowers enterprises to rapidly achieve Continuous and Autonomous Cloud Governance at Scale. CoreStack enables enterprises to realize outcomes such as 40% decrease in cloud costs and 50% increase in operational efficiencies by governing operations, security, cost, access, and resources. CoreStack also assures 100% compliance with standards such as ISO, FedRAMP, NIST, HIPAA, PCI-DSS, AWS CIS & Well Architected Framework (WAF). We work with many large global customers across multiple industries including Financial Services, Healthcare, Retail, Education, Telecommunications, Technology and Government.

CoreStack closed a $8.5 million Series A financing recently. CoreStack was recognized as IDC Innovator in Cloud Management Solutions and in the Gartner Magic quadrant for Cloud Management Platforms in 2020. Earlier in 2019, Gartner named CoreStack as a Cool Vendor in Cloud Computing. CoreStack is a Microsoft Azure Gold & Co-Sell Partner and Amazon AWS Advanced Technology Partner.

CoreStack Offers

• Competitive salary
• Competitive benefit package with appreciable equity
• Exciting, fast-paced and entrepreneurial culture
• Health insurance and other company benefits

Who We Are?

Bectran, the industry leading SaaS platform, has grown rapidly over the last 10 years to become the companion toolkit for the Credit Department just as CRM is for the Sales Department. From simple to complex organizations, SMEs to Fortune 500 companies, Bectran has helped companies cut down the time to process and approve credit by as much as 90% whilst significantly lowering the risk of credit defaults and the cost of collections. Our customers enjoy the ease, speed and cost-effectiveness of adopting the Bectran platform. Credit Professionals in various industries have described the Bectran platform as the future of the credit department.

Mid-Level Software Engineer (Java Fullstack Engineer/Developer)

This dynamic opportunity in a fast growing and multi-technology SaaS platform is for you!! As a Software Engineer at Bectran, it is essential that you have the breadth of knowledge to participate in design and development of a contemporary SaaS-based architecture. Practical development experience using Java/J2EE is required for the right candidate to succeed. You should be curious about technology and open to learning and applying new innovations.

What You’ll Do:

• Enable and exercise your problem solving and analytical skills.
• Design and develop Java/J2EE based full stack software components including complex modeling, MVC based UI, etc.
• Ensure applications are implemented to meet business and technical requirements.
• Work with high performing engineering teams across global locations.

.What You Need to Be Successful:

• Bachelor’s degree in Computer Science or equivalent.
• Solid 4-8 years hands-on design and coding experience.
• Familiarity with Agile development, JSF/Primefaces, JPA/Hibernate, Spring, ActiveMQ.
• Strong object-oriented design, Java/J2EE and MVC architecture based programming skills.
• Solid relational DBMS skills using MySQL, or other RDBMS products.
• Desirable - Experience in Big Data Technologies (Hadoop, ElasticSearch, Kafka, MongoDB, etc.)
• Nice to have - Real-world experience in large scale, and high availability implementations.
• Experience developing web services using REST and SOAP approaches.

What You’ll Love About Bectran:

• Developing strategic industry knowledge and driving your own success.
• Watching your hard work have a direct impact on success of the company and global customer base.
• All standard benefits.

As Bectran continues to expand in the Fintech SaaS industry, we are seeking intelligent, hard-working and highly skilled individuals to join our growing Engineering team. If you are ready to expand your knowledge as you solve complex problems, we want to hear from you!

Responsibilities

• Build efficient, testable, and reusable wordpress modules
• Solve complex performance problems and architectural challenges
• Integration of data storage solutions
• Manage and update theme as per requirement

Skills

• Strong knowledge of wordpress
• WooCommerce plugin
• Understanding the fully synchronous behavior of PHP
• Understanding of MVC design patterns
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Knowledge of object oriented PHP programming
• Understanding accessibility and security compliance
• Strong knowledge of the common PHP or web server exploits and their solutions
• Understanding fundamental design principles behind a scalable application
• Familiarity with limitations of PHP as a platform and its workarounds
• Creating database schemas that represent and support business processes
• Familiarity with SQL databases and their declarative query languages
• Proficient understanding of code versioning tools, such as Git