Senior Software Engineer - ReactJS

Role Overview

We are looking for an Engineering Manager who thrives in a fast-paced startup environment, is hands-on with development, and can lead our engineering team to build and scale robust, high-performing systems. You will drive architectural decisions, mentor a team of talented engineers, and collaborate closely with product, design, and business teams to execute our ambitious roadmap. You will be at the forefront of scaling our infrastructure to support billions of messages, ensuring real-time engagement for businesses at scale.

Key Responsibilities

• Technical Leadership: Own the engineering roadmap, ensuring scalability, reliability, and performance of our systems.
• Hands-on Development: Dive into the code when necessary, set high coding standards, and lead by example.
• Team Management: Lead, mentor, and scale a high-performing engineering team, fostering a strong culture of ownership and innovation.
• System Scalability: Architect and optimize scalable and resilient backend & frontend systems handling millions of messages per day.
• High Availability & Performance: Design systems that can handle billions of API calls and ensure minimal downtime.
• Agile Execution: Drive sprint planning, prioritization, and timely delivery of features in an agile development environment.
• Collaboration: Work closely with product, design, and business teams to align engineering efforts with company goals.
• DevOps & Security: Ensure best practices for CI/CD, cloud infrastructure (AWS/GCP), and security compliance.
• Tech Stack Evolution: Stay ahead of emerging technologies and drive innovation in AiSensy’s architecture.

What You Bring

• 8+ years of experience in software development, with at least 2 years in a leadership/managerial role.
• Expertise in modern tech stacks – Proficiency in MERN (MongoDB, Express, React, Node.js) stack or similar.
• Strong knowledge of cloud platforms (AWS) and microservices architecture.
• Proven experience in scaling high-traffic, distributed systems handling billions of messages per month.
• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines.
• Strong problem-solving skills and an ability to hustle in a fast-paced startup environment.
• Excellent communication skills and a data-driven decision-making approach.
• Passion for building great products, coaching engineers, and driving tech excellence.

What We Offer

• Competitive Compensation & Benefits aligned with your experience and the impact you bring.
• Opportunity for Growth in a rapidly expanding B2B SaaS company.
• Cutting-Edge Technology & Projects in the WhatsApp Business API and Click to WhatsApp Ads space.
• Collaborative Work Environment that fosters innovation, learning, and career development.
• Flexible & Inclusive Culture, where every team member has a voice and the chance to make a significant impact.

Role Objective

As a Fullstack Intern, you will gain hands-on experience in developing business-relevant, high-quality, and scalable web applications. You will work closely with our dynamic AdTech team to solve real-world challenges in the Media and Entertainment sector.

Roles & Responsibilities

• Application Design: Work with the team to understand requirements, contribute to user stories, and support the design process. Assist in reviewing designs, giving feedback, and ensuring alignment with user expectations.
• Architecture: Learn and contribute to designing scalable and robust system architectures (on-prem or cloud – Azure, AWS, or GCP).
• Development: Assist in front-end and back-end development using technologies such as SQL, Django, Angular/React, HTML, and CSS. Exposure to GoLang and Big Data will be a plus.
• Deployment: Support the implementation of scalable and cost-effective deployment strategies. Contribute to CI/CD processes on IIS or Linux. Familiarity with Dockers is a plus.
• Maintenance: Help in maintaining development and production environments, troubleshooting issues, fixing bugs, and suggesting improvements.
• Data Migration: Learn and assist in planning and implementing database migration strategies.
• Documentation: Contribute to technical documentation, including HLD, technical diagrams, script design, and SOPs.
• Client Interaction: Gain exposure to client communication and understand how to translate business requirements into technical solutions.

Requirements

Education – B.Tech (Computer Science, IT) or equivalent, currently pursuing or recently completed.

Experience – Previous internship experience is a plus.

Behavioural Skills

• Clear and assertive communication
• Ability to comprehend business requirements
• Teamwork and collaboration
• Analytical thinking
• Time management
• Problem-solving and troubleshooting skills.

Technical Skills

• Back-end & Front-end: Django, Angular/React, HTML, CSS
• Cloud Technologies: AWS, GCP, Azure
• Big Data: Hadoop, Spark (knowledge is a plus)
• Containerized Deployment: Dockers/Kubernetes (a plus)
• Other: Understanding of GoLang is a plus

Company Description

13kbs.com is a forward-thinking company committed to delivering cutting-edge solutions that empower businesses to excel in the digital era. We bridge the gap between innovation and practicality, ensuring efficiency, security, and scalability at every step.

Our key services include AI-powered solutions, scalable full-stack development, cloud & AWS expertise, comprehensive firewall & compliance reviews, and automation testing. At 13kbs.com, we deliver high-impact solutions that align with the evolving demands of technology while maintaining a strong focus on privacy and reliability.

Role Description:

MERN Stack Developer (On-Site – Rajkot)

This is a full-time, on-site role for a MERN Stack Developer based in Rajkot. The developer will be responsible for developing, testing, and maintaining seamless user experiences using technologies such as MongoDB, Express.js, React, and Node.js.

Daily responsibilities include collaborating with cross-functional teams to define, design, and ship new features; writing clean, efficient, and well-documented code; debugging and optimising applications; and ensuring application scalability and security.

• Qualifications & RequirementsExperience: 1–3 years of hands-on experience in MERN stack development
• Proficient in: MongoDB/Postgres, React, and Node.js
• Front-end expertise: HTML, CSS, JavaScript
• Strong understanding of: RESTful APIs and web services
• Familiarity with: Git or other version control systems
• Experience with cloud services: Especially AWS
• Education: Bachelor’s degree in Computer Science, Engineering, or related field
• Soft Skills: Strong problem-solving abilities and effective communication skills
• Language Requirement: Candidate must be able to understand and communicate in Gujarati
• Location: Must be based in Rajkot or nearby areas
• Work Type: Full-time, work from office only (no remote option)

Important Note

Only apply if you meet all the above criteria, including 1–3 years of experience, proximity to Rajkot, and Gujarati proficiency.

Job Title: MERN TECH

Location: Paschim Vihar, West Delhi

Company: Eye Mantra

Job Type: Full-time, Onsite

Salary: Commensurate with experience and interview performance

Experience:- 3+ years

Contact: +91 97180 11146(Rizwana Siddique,HR)

Interview Mode: Face to Face

About Eye Mantra:

Eye Mantra is a premier eye care organization committed to delivering exceptional services using advanced technology. We’re growing fast and looking to strengthen our in-house tech team with talented individuals who share our passion for innovation and excellence in patient care.

Position Overview:

We are currently hiring a skilled Full Stack Developer to join our in-house development team. If you have strong experience working with the MERN stack, including Node.js, React.js, MongoDB, and SQL, and you thrive in a collaborative, fast-paced work environment, we’d love to connect with you.

This role requires working onsite at our West Delhi office (Paschim Vihar), where you’ll contribute directly to building and maintaining robust, scalable, and user-friendly applications that support our medical operations and patient services.

Responsibilities:

• Build and manage web applications using the MERN stack (MongoDB, Express, React, Node).
• Create and maintain efficient backend services and RESTful APIs.
• Develop intuitive frontend interfaces with React.js.
• Design and optimize relational databases using SQL.
• Work closely with internal teams to implement new features and enhance existing ones.
• Ensure applications perform well across all platforms and devices.
• Identify and resolve bugs and performance issues quickly.
• Stay current with emerging web development tools and trends.
• (Bonus) Leverage AWS or other cloud platforms to enhance scalability and performance.

Required Skills & Qualifications:

• Proficiency in Node.js for backend programming.
• Strong hands-on experience with React.js for frontend development.
• Good command of SQL and understanding of database design.
• Practical knowledge of the MERN stack.
• Experience using Git for version control and team collaboration.
• Excellent analytical and problem-solving abilities.
• Strong interpersonal and communication skills.
• Self-motivated, with the ability to manage tasks independently.

Why This Role Matters

We’re looking for a Principal Engineer to lead the architecture and execution of our GenAI-powered, self-serve marketing platforms. You will work directly with the CEO to shape, build, and scale products that change how marketers interact with data and AI. This is intrapreneurship in action — not a sandbox innovation lab, but a real-world product with traction, velocity, and high stakes.

What You'll Do

• Co-own product architecture and direction alongside the CEO.
• Build GenAI-native, full-stack platforms from MVP to scale — powered by LLMs, agents, and predictive AI.
• Own the full stack: React (frontend), Node.js/Python (backend), GCP (infra), BigQuery (data), and vector databases (AI).
• Lead a lean, high-caliber team with a hands-on, unblock-and-coach mindset.
• Drive rapid iteration with rigor, balancing short-term delivery with long-term resilience.
• Ensure scalability, observability, and fault tolerance in multi-tenant, cloud-native environments.
• Bridge business and tech — aligning execution with evolving user and market insights.

What You Bring

• 8–12 years of experience building and scaling full-stack, data-heavy or AI-driven products.
• Fluency in React, Node.js, and Google Cloud (Functions, BigQuery, Cloud SQL, Airflow, etc.).
• Hands-on experience with GenAI tools (LangChain, OpenAI APIs, LlamaIndex) is a bonus.
• Track record of shipping products from ambiguity to impact.
• Strong product mindset — your goal is user value, not just elegant code.
• Architectural leadership with ownership of engineering rigor and scaling best practices.
• Startup or founder DNA — you’ve built things from scratch and know how to move fast without breaking things.

Who You Are

• A former founder, senior IC, or tech lead who’s done zero-to-one and 1-to-n scaling.
• Hungry for ownership and velocity — frustrated by bureaucracy or stagnation.
• You code because you care about solving real problems for real users.
• You’re pragmatic, hands-on, and grounded in first principles.
• You understand that great software isn't just shipped — it's hardened, maintained, and evolves with minimal manual effort.
• You’re open to evolving into a founding engineer role with influence over the tech vision and culture.

What You Get

• Equity in a high-growth product-led startup.
• A chance to build global products out of India with full-stack and GenAI innovation.
• Access to high-context decision-making and direct collaboration with the CEO.
• A tight, ego-free team and a culture that values clarity, ownership, learning, and candor.

Why YOptima?

YOptima is redefining how leading marketers unlock growth through full-funnel, AI-powered media solutions. As part of our growth journey, this is your opportunity to own the growth charter for leading brands and agencies globally and shape the narrative of a next-generation marketing platform.

Ready to lead, build, and scale?

We’d love to hear from you.

Requirements:

• Hands-on working knowledge and experience is required in:
• Extensive experience working on C#, . net and. net core frameworks
• Extensive experience working on React, Javascript and Typescript
• Relational Databases (SQL Server, Oracle, PostgreSQL, etc. )
• NoSQL Databases (Mongo, Cloud Spanner, etc. )
• Agile Methodologies (Scrum, TDD, BDD, etc. )
• Experience working with distributed teams across regions and time zones
• Strong organisational skills
• Display detailed, critical, quality-oriented, skeptical thinking about the product
• Experience with several of the following tools/technologies is desirable: GIT, Jira, Jenkins, SharePoint, Visual Studio Code.
• Microservices Architecture, Domain Driver Design, Test Driven Development is a bonus
• Design Patterns and implementing the Design Patterns
• Development of Complex Application and System Architectures
• Data Structures and Algorithms using Typescript, C# and. NET
• Experience working in Google Cloud will be a big bonus as all our systems are in the Cloud 7
• Knowledge of REST and gRPC API's is a bonus
• Knowledge of the following technologies is a plus:
• Continuous Integration and Continuous Delivery Tools like GitHub, Git, etc.
• Containerisation Technologies (Docker)

• Develops software solutions by studying information needs, conferring with users, studying systems flow, data usage, and work processes; investigating problem areas; and following the software development lifecycle.
• Determines operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.
• Documents and demonstrates solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code.
• Prepares and installs solutions by determining and designing system specifications, standards, and programming.
• Improves operations by conducting systems analysis and recommending changes in policies and procedures.
• Updates job knowledge by studying state-of-the-art development tools, programming techniques, and computing equipment, and by participating in educational opportunities, reading professional publications, maintaining personal networks, and participating in professional organizations.
• Protects operations by keeping information confidential.
• Provides information by collecting, analyzing, and summarizing development and service issues.
• Accomplishes engineering and organization mission by completing related results as needed.
• Supports and develops software engineers by providing advice, coaching, and educational opportunities.

The requirement is for a new tech-based venture started by IIMB alumni. CNA Innovative Solutions is hiring a motivated and talented Senior Developer to work on in-house software products in Customer-facing/B2C model for the Indian market. We are looking for a candidate with experience/information in platforms like technical experience on the PHP frameworks, database & cloud solutions able to provide complete development expertise and manage the tech.

We are looking for a driven and motivated team member who works in a collaborative environment with Software Product development vendor, owns the entire design to the implementation, and also be the main point of contact/owner for any issue resolution of the in-house software products.

The company's product line is customer-facing website and mobile app.

*Requirements

• Experience with php frameworks, preferably full-stack development for mobile and web application developments (preferably full stack developer)

• Excellent Knowledge in Enterprise Java, Design and Architecture patterns

• Strong database and RDBMS concepts

• Expertise in technical architecture concepts Expertise in Magento Task management (time based/ Event based), internationalization/ localization/ personalization concepts

• Rich Internet Application using AJAX/JQuery

• Good knowledge in integration with Web content management systems

• Preferred expereince in commerce concepts like supply chain, warehousing, logistics management, marketing, CRM

• Experience in defining solutions in component-based architectures and process/rule-driven solutions

• Lead and Responsible for assisting in the establishment of an IT Architecture practice, quality, security, and establish architecture and standards methodology

• Be responsible for the complete functioning of the systems in coordination with the vendor

• Be responsible for the third-party integrations for the entire e-commerce platform

• Manages activities that take place during solution ideation, solution design, and solution implementation.

• Work with the inhouse and outsourced development team while ensuring the health and uptime of the system

• Ensure the code quality, infra readiness, and approval before the product launch

Requirements

• Proven experience as a software developer while leading teams

• Experience in software development and coding in various languages (Java, PHP, MySQL)

• Excellent knowledge of software and application design and architecture

• Familiarity with HTML/CSS, JavaScript and UI/UX design

• Understanding of software quality assurance principles

• A technical mindset with great attention to detail

• High quality organizational, ownership and ability to lead team