Fullstack Developer | Javascript

Job Title : Flutter Dart Developer (Backend Heavy - Node.js)

Experience Required : 5+ Years

Location : Bellandur & Manthali, Bangalore – Onsite Only

Type : Contractual

About the Role :

We are looking for an experienced Flutter Dart Developer with a backend-heavy architecture (Node.js) to join our team on a contractual basis.

This role goes beyond basic UI development — we need someone who understands the complexities of security, caching, APIs, SQL, server-side rendering, performance tuning, and scalable backend architecture.

Mandatory Skills : Flutter, Dart, Backend-heavy architecture (Nodejs), RESTful APIs, SQL, Caching, Firebase, State Management (Bloc/Provider/Riverpod), Performance Tuning, Git, Mobile Deployment (iOS & Android), Agile

Key Responsibilities :

• Develop high-performance cross-platform apps using Flutter & Dart.
• Translate complex UI/UX into responsive mobile experiences.
• Collaborate with product, design, and backend (Node.js) teams to deliver scalable features.
• Implement caching, security, SQL, and performance optimization strategies.
• Integrate RESTful APIs, Firebase, and third-party libraries.
• Conduct code reviews and support junior developers.
• Stay updated on emerging mobile/backend technologies.

Required Skills & Qualifications :

• 5+ Years in Mobile Development, 3+ Years with Flutter & Dart.
• Strong knowledge of state management (Bloc, Provider, Riverpod).
• Hands-on experience in Node.js for backend development.
• Expertise in API design, SQL, caching, offline storage, security, and performance tuning.
• Experience with Firebase, push notifications, and app deployment on iOS & Android.
• Familiarity with native mobile development (Kotlin/Java or Swift/Obj-C) is a plus.
• Proficient in Git and Agile methodologies with excellent problem-solving skills.

AI/ML Development: Build models using open-source frameworks (e.g., PyTorch, TensorFlow). ● Zero-Cost Full-Stack Engineering: Build across the stack using cost-free tools and infrastructure. ● Security & Auth: Implement secure authentication/authorization systems using free solutions. ● AI-Augmented Coding: Utilize tools like GitHub Copilot, Cody, and Workik to 10x productivity. ● UI/UX Focus: Build clean, engaging, and fast interfaces. ● Rapid Iteration: Ship MVPs, test quickly, and improve constantly. ● Lean Infrastructure: Avoid paid services; build with open-source and free-tier tools. 

Get to Know our Team:

In our Full stack Engineering department, we build the scalable, fault-tolerant systems and APIs that host our core business logic. Our systems cover all major areas of our business: such as TAM SAM, calculator, lead generation, campaign execution & data modeling. Most importantly though, we hire great people and empower them to be successful. Whether it’s building new projects or reimagining our existing business, you’ll make a big impact as part of the Full stack Engineering team.

The Opportunity: 

Swabhav is looking for developers to work on mission critical systems that deal with the designing and development of APIs.

In this Role, you’ll get to

• Lead development of features, experiments, technical projects and complex systems.
• Be a technical architect, mentor, and driver towards the right technology.
• Continue to evolve our architecture and build better software.
• Be a major contributor to our agile and scrum practices. 
• Get involved with software engineering and collaborate with server, other client, and infrastructure technical team members to build the best solution.
• Constantly look for ways to improve our products, codebase and development practices. 
• Write great code and help others write great code.
• Drive Technical decisions in the organization.

What You’ll Need to Succeed

• 3-6 years’ experience under your belt developing performance-critical applications that run in a production environment using Node Js, React Js or Next Js, PostgreSQL.
• Experience in full ownership of the systems involved.
• Hands on experience working with CRM platforms, Third party app integrations or Heavy file processing & Restful APIs.
• You understand that different applications have different data requirements.
• Good understanding of algorithms and data structures
• Strong coding ability.
• You are passionate about the craft of software development and constantly work to improve your knowledge and skills.
• Excellent communication skills.

It’s Great If You Have

• Experience with Scrum/Agile development methodologies.
• Experience building products.
• Core engineering infrastructure tools like Git for source control.

RESPONSIBILITIES 

Building and implementing top-notch user interfaces using Javascript and the Angular framework 

Writing efficient Javascript code while also using HTML and CSS 

Develop all server-side logic, including data storage to optimize website performance 

Using the latest front-end technologies, creating adaptable interfaces for online applications 

Leading with product-analysis tasks and conducting performance tests 

Using sustainable coding patterns that can be easily enhanced and modified subsequently 

Perform complex product analysis as well as development duties that may include significant research and analysis 

Ensuring extensive and proper documentation of solution designs and implementation for easy onboarding of new teammates 

Effective collaboration with team members and stakeholders to deliver requirements 

Keeping up-to-date with industry trends and technology developments 

Providing tech support for clearing bottlenecks and and obstacles 

Identifying and troubleshooting issues with frontend code 

Execute automated testing platforms and system tests 

REQUIREMENTS 

Extensive knowledge, experience and understanding of JavaScript and Node.js 

Professional experience in full stack development using the NAP stack - Node.js, Angular, Postgres 

In depth understanding of cross-browser compatibility issues and ways to work around such issues 

Proficiency in browser rendering behavior and performance. 

Proficiency in Javascript, web stacks, libraries, and frameworks 

Proficient understanding of code versioning tools (Git) 

Good understanding of or working experience with IONIC framework is a major plus 

Understanding of data security concepts 

Who We Are:

Polosoft helps brands solve complex challenges through our integrated development and services offering. Headquartered in Bhubaneswar with offices in Delhi & USA, our teams are connected by a set of core values that inform everything we do, from how we hire to how we work together: values like Everyone Matters, No Silos, and Masters of Our Craft.

At Polosoft, we are creating a new model for a new age client, and we are obsessed with measured impact. We combine digital, analytical, and creative capabilities with industry knowledge and experience. That means clients can bring us their biggest challenges, knowing we have what it takes to bring a new business vision to life.

Polosoft is growing fast; hence an entrepreneurial mind-set and the ability to multitask would be highly desired.

We are Looking For:

As a Full Stack Developer, you are constantly leveraging your technical skills and creativity. You have mastered front-end and back-end development, creating reliable, lightweight, malleable, and high-performing web & enterprise applications. You are fluent in core PHP and at least 1 MVC framework from Laravel and Codeignitor, comfortable using CLI in Unix/ Linux server environments. You are technologically agnostic, genuinely enjoy experimenting with new frameworks, and closely follow changes across the tech landscape.

This role is perfectly suited for people that love to learn because it requires you to continuously update your skillset and technical abilities. Staying up to date on new development tools, programming techniques, and industry trends is also part of the job. If you’re someone who loves logic and problem solving, then We are looking for You.

What You Will Do

• No day is the same - you will create technical designs that support varying client requirements.
• You will design and develop full-stack web applications using the latest web technologies, primarily Angular js and React js, Express js
• Write code that passes unit tests and withstands an agile and test-driven development environment.
• Leverage your skills in industry standard tools to deliver weekly code releases.
• You’ll work in a ‘no silos’ environment, frequently collaborating with global teams and roles across the organization.

Who You Are

Requirements

• You can build products from scratch.
• You have expertise in any one of the back-end frameworks (PHP 5.x/7.x with XAMP/LAMP Environment, Laravel, Codeigniter PHP web framework, Node js, Express js, etc.)
• You are fluent in these languages - PHP, Javascript, NodeJS
• You have Strong knowledge of Ui and UX

• You have dabbled in these front-end tools - HTML 5, Bootstrap 3.0/4.0, CSS 3.0, React js,Node.js Angular JS, JQuery
• You understand when to use NoSQL ( Mongo DB) vs. relational database (MySQL)
• You are comfortable to use any of the web services (REST/ SOAP/ XML)
• You are comfortable to use ecommerce tool like magento 1 and 2, Woocommerce,prestashop and other CMS tool like wordpress (plugin building),drupal  and Joomla
• You preferably have experience in working with GIT, SVN or similar SCM tools
• You must have done one of this payment gateway integration - Paypal/ Stripe/ Razor pay
• You are comfortable working up and down the stack.
• You can convert ideas into designs and build them out

Seniority Level

Mid-level 2-4 Years of Experience

CTC : 3 – 6 LPA

We are looking for the web Developer in designing and implementing new features and functionality and guiding the website's architecture.
Experience in developing Web-based applications, working experience on smarty frame work as well worked on Joomla and Wordpress.
Skilled in web technologies like HTML, XHTML, CSS, JavaScript.

Roles & Responsibilities:

Must have sound knowledge of CMS platforms like : Wordpress, Joomla
Experience in Joomla custom module programming and designing
Experience in Joomla custom website and web application development
Experience in Joomla standard website and web application development
Knowledgable of Word press Theme Integration, Plugin Creation/Modification.
Actively look for and fix bugs or errors on developed sites.
Experience in developing new sites using WordPress
Experience in to develop, modify and enhance WordPress Plugins
Experience in custom theme development from PSD to WordPress
Experience in customizing and maintaining existing sites
Ability to understand CSS changes and their ramifications to ensure consistent style across platforms and browsers
Ability to convert comprehensive layout and wireframes into working HTML pages
Experience in conducting website performance tests and troubleshooting content issues
Monitoring the performance of the live website.
Should be agile and quick problem solver.
Fluency with WordPress, PHP, MySQL, HTML5, CSS/SASS, and Frameworks with Responsive design.
Good knowledge of relational databases, version control tools and of developing web services

Skill set: Joomla, JavaScript, JQuery CSS, CSS3, WordPress, HTML, PHP

Full Stack Engineer

Front End Technology:

• Minimum 2+ years’ experience in working web development technologies

• Experience writing modular/reusable code and using modern JS frameworks / libraries like

React or other comparable frameworks or toolkits

• Strong expertise with HTML5, CSS, and writing cross-browser compatible code.

. Experience with Responsive Frameworks like Bootstrap / Flex.

• Strong knowledge of Object-Oriented Design concepts.

Back end Technology:

• Have extensive experience in designing a backend stack of the product

• Strong understanding of Data Structures / Algorithms.

• Minimum of 2+ years of experience in Writing Backend Microservices in Node

JS/Python

• Ability to build the product from scratch & drive it to completion

Responsibilities and Duties:

• Design and build a next-generation product that drives the business and meets the functional

needs of our customers and partners.

• Designing overall architecture of the web/ mobile application

• Maintain quality and ensure responsiveness of applications

• Optimize web applications to maximize speed and scale. Support diverse clients from high

powered desktop computers to small footprint mobile devices.

• Write client-side/backend code for web-based applications, create fast, easy-to-use, high

volume production applications, and develop prototypes quickly.

• Build reusable code and libraries for future use

• Develop application code and unit test (Karma, Mocha, Chai).

• Ensuring high performance and security of web apps developed.

Employment Type

Full-time

Job Functions:

• Engineering

• Information Technology

Skills

• Object-Oriented Programming (OOP)

• JavaScript

• Data Structures

• Front-end Development

• Algorithms

• React js
• Express js

• Swagger

• Github

Qualifications

• Experience in building scalable systems.

• Exposure in building and using reusable code and libraries.

• Candidates should proactively keep their knowledge and skills up to date.

• Candidates should be able to work in a fast-paced environment independently and as part of a team.

• Candidates should be able to work in a highly collaborative environment with excellent communication skills.

Other Skills:

• Excellent written and verbal communication skills.

• Ability to work in a dynamic, fast-moving, and growing environment.

• Critical thinker and problem-solving skills. Should be able to strategize immediately.

• Strong knowledge of web application architectures, trends, and emerging technologies.