Senior Java Developer

About the Role:

We are looking for a skilled Flutter App Developer to build and maintain a high-performing online portal accessible via both mobile and web platforms. The ideal candidate will have a strong command of Flutter and Dart, experience integrating APIs, and the ability to develop responsive, scalable, and intuitive user interfaces.

Key Responsibilities:

• Develop, test, and maintain cross-platform applications for web and mobile using Flutter
• Implement responsive UI/UX based on Figma/Adobe XD designs
• Integrate third-party APIs and backend services (e.g., REST APIs, Firebase)
• Build and manage state using Provider, Bloc, or similar libraries
• Optimize app performance and resolve bugs reported by QA or end-users
• Ensure cross-browser/platform compatibility and responsiveness
• Collaborate with UI/UX designers, backend developers, and product teams
• Manage version control using Git and participate in code reviews

Required Skills:

• Strong experience with Flutter & Dart
• Experience developing Flutter Web & Mobile apps
• Familiarity with state management solutions (e.g., Provider, Bloc, Riverpod)
• Proficient in RESTful API integration and JSON handling
• Knowledge of Firebase services (Auth, Firestore, FCM) or other backend tools
• Understanding of responsive and adaptive UI principles
• Experience with Git version control

Preferred Skills (Bonus):

• Familiarity with deployment on Play Store and App Store
• Experience with web-specific optimization (SEO, PWA basics)
• Background in Android (Java/Kotlin) or iOS (Swift) development
• Unit and widget testing in Flutter
• CI/CD pipeline knowledge (Codemagic, GitHub Actions, etc.)

Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or related field (preferred)
• Proven portfolio or GitHub repo with past Flutter/web apps

Why Join Us:

• Opportunity to work on a dynamic and scalable online portal
• Flexible work schedule and remote options
• Growth-oriented and collaborative work environment

Hello,

Greetings from CodersBrain!

Coders Brain is a global leader in its services, digital, and business solutions that partners with its clients to simplify, strengthen, and transform their businesses. We ensure the highest levels of certainty and satisfaction through a deep-set commitment to our clients, comprehensive industry expertise, and a global network of innovation and delivery centers.

This is regarding the urgent opening for the'' ROR Developer role. We found your profile in the Cutshort database and it seems like a good fit for the organization. If you are interested, do revert back with your updated CV along with the details:

Permanent Payroll :  CodersBrain

Location:- Mumbai/ Kolkata

Notice Period:- imm./15 daysJob Description
Scope of work  This role is an exciting opportunity to build highly interactive

customer facing applications and products.
 Candidate will help transform vast collections of data into
actionable insights with intuitive and easy to use interfaces and
visualizations.
 Candidate will leverage the power of JavaScript and Ruby on
Rail to build novel features and improvements to our current suite
of tools.
 This team is responsible for customer-facing applications that
deliver SEO data insights.
 Through the applications customers are able to access insights,
workflows, and aggregations of information above and beyond
core data offerings

Responsibility 

 Build and maintain the core frontend application

 Work collaboratively with the engineers on the Frontend team to
ensure quality and performance of the systems through code
reviews, documentation, analysis and employing engineering
best practices to ensure high-quality software
 Contribute to org devops culture by maintaining our systems,
including creating documentation, run books, monitoring, alerting,
and integration tests, etc.
 Participate in architecture design and development for new
features and capabilities, and for migration of legacy systems, to
meet business and customer needs.
 Take turns in the on-call rotation, handling systems and
operations issues as they arise including responding to off-hours
alerts
 Collaborate with other teams on dependent work and integrations
as well as be vigilant for activities happening outside the team
that would have an impact on the work your team is doing.
 Work with Product Managers and UX Designers to deliver new
features and capabilities
 Use good security practices to protect code and systems
 Pitch in where needed during major efforts or when critical issues
arise
 Give constructive, critical feedback to other team members
through pull requests, design reviews, and other methods
 Seek out opportunities and work to grow skills and expertise.

C) Skills Required
Essential Skills  JavaScript (preferred ExtJS framework)

 Ruby
 Ruby on Rails
 MySQL
 Docker
Desired Skills  Terraform

 Basic Unix/Linux administration
 Redis
 Resque
 TravisCI
 AWS ECS
 AWS RDS
 AWS EMR
 AWS S3
 AWS Step Functions
 AWS Lambda Functions
 Experience working remotely with a distributed team
Great problem-solving skills

D) Other Information
Educational Qualifications Bachelor's degree/MCA
Experience  5– 8 years

Please confirm the mail with your updated CV  if you are interested in this position and also please share the below-mentioned details :

Current CTC:
Expected CTC:
Current Company:
Notice Period:

Notice Period:Are you okay with 1 week Notice period if not  then comfortable as freelancing work with us till joining:- 
Current Location:
Preferred Location:
Total-experience:
Relevant experience:
Highest qualification:

DOJ(If Offer in Hand from Other company):

offer in hand:

Alternate number:

Interview Availability

1. Building products that impact millions
2. Working on really tough problems that challenge you
3. Being part of a small team where you are impactful

1. 50K+ API requests/min
2. 25K+ concurrent users every second

• A team that loves coding & building exceptional quality products
• Challenges that will push you beyond your limits
• A democratic place where everyone is heard & aware
• No hierarchy, politics, bosses, managers or anything like that
• And most importantly, Happy Vibes!

• 3+ years of experience with Ruby On Rails.
• Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.
• Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
• Experience in fintech domain will be another added advantage
• Bachelor’s degree in computer programming, computer science, or a related field.
• Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.

We are looking for a full-stack Javascript developer mainly with Javascript Frameworks (React, Angular) and NodeJS skillset.

As a Frontend JS Developer, you will be required to implement a complete user interface in the form of a mobile and desktop web app, with a focus on performance.

As a NodeJS developer, you will need to focus on the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.

Responsibilities

• Participate in the full development life cycle, including implementing design, coding, testing and production release

• Your main duties will include creating modules and components in React and coupling them together into a functional app.

• Understanding the nature of asynchronous programming and its quirks and workarounds

• Integration of multiple data sources and databases into one system

• Creating database schemas that represent and support business processes

• Drive innovation through rapid prototyping and iterative development

Qualifications

• Passionate about developing amazing user experiences

• Strong proficiency with JavaScript (Object Oriented)

• At least 1 year of experience working in MEAN or MERN stack - i.e. React/Angular and Nodejs

• Deep knowledge of Frontend Application practices and commonly used modules based on extensive work experience along with Node.js applications on top of RESTful APIs

• Experience with web frontend technologies such as HTML5, CSS3,  Bootstrap

• Proficient understanding of code versioning tools, such as Git is a plus

• Knowledge Experience in building ionic/hybrid apps is a huge positive