11+ UML Jobs in Mumbai | UML Job openings in Mumbai

Job Responsibilities:

- Design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.

- Contribute in all phases of the development lifecycle: concept, design, build, deploy, test, release to app stores and support.

- Diagnose performance issues, fix bugs (including crashes and ANRs) to increase the functionality of the application.

- Write well designed, testable, efficient code.

- Ensure designs are in compliance with specifications

- Prepare and produce releases of software components

- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

Desired Profile :

B.Sc. (CS or IT) + MCA/ BCA + MCA/ B.Tech. /B.E. (CS or IT) .

Experience required- 1 - 2 years

- Subject Proficient in Java/Kotlin programming

- Knowledge and experience in Flutter Framework and DART programming

- Hands on experience in using RESTful APIs

- Hands on experience in designing and developing micro-services architecture and containers

- Object oriented analysis, UML and design using common design patterns.

- Hands on experience in development IDE Android Studio, Android SDK, Firebase Test Lab

- Experience with offline storage, threading, and performance tuning

- Familiarity with push notifications

- Familiarity with IOS integration with Flutter

- Experience using GitHub or similar environment

- Complete understanding of SDLC

- Experience with Agile development

- Experience with Material Design and Android UI design principles, patterns and best practices

- Good knowledge of adding third-party libraries for Eg. Twilio

- Ability to understand business requirements and translate them into technical requirements

React Native Developer (Full-Time)

📍Work from Office – Malad, Mumbai

We are hiring a React Native Developer for Websites.co.in, a platform used by millions of businesses to create their websites in minutes. You will build and improve our mobile experience used by small business owners globally.

Your role:

• Build and maintain mobile apps using React Native
• Implement clean, reusable components and UI screens
• Integrate REST APIs and handle JSON data efficiently
• Work on app performance, loading speed, and smooth UX
• Debug issues, fix crashes, and improve app stability
• Collaborate with product, backend, and QA teams to ship features
• Participate in testing, code reviews, and release cycles

What we expect:

• Strong understanding of JavaScript and React Native basics
• Familiarity with navigation, state management, and component lifecycle
• Hands-on experience with APIs, third-party libraries, and async storage
• Knowledge of Git for version control
• Problem-solving mindset and ability to work independently
• Bonus: experience with Redux / Context API, Android or iOS builds, or publishing apps
• 0–3 years of experience (freshers with good projects can apply)

What you get:

• Real ownership on a live, large-scale SaaS product
• Fast-paced growth environment with hands-on learning
• Opportunity to grow into a core mobile or full-stack role

What We Expect:

• Min 3 years of mobile development experience, with Flutter & Dart.
• Proven ability to build and scale real-time, high-performance fintech applications.
• A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
• Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
• Hands-on experience with real-time data streaming, push notifications, and WebSockets.
• Strong expertise in security, encryption, and compliance—you know fintech demands precision.
• A track record of integrating RESTful APIs, GraphQL, and third-party services into flawless mobile apps.
• A mindset that thrives under pressure—we work fast, and we expect results.
• Lead the development of world-class fintech mobile applications that redefine user expectations.
• Architect and optimize blazing-fast, low-latency Flutter applications for financial markets.
• Work with designers, backend engineers, and product teams to craft seamless, intuitive, and ultra secure user experiences.
• Solve hard problems at scale—whether it’s optimizing performance, reducing load times, or ensuring absolute security.
• Push the boundaries of mobile fintech innovation, from AI-powered insights to predictive analytics.
• Own your work end-to-end—no excuses, no hand-holding, just results.

Must-Have Skills:

• Min 3 years of mobile development experience, with 2+ years in Flutter & Dart.
• Proven ability to build and scale real-time, high-performance fintech applications.
• A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
• Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
• Hands-on experience with real-time data streaming, push notifications, and WebSockets.

Why Join Us?

• Work with some of the sharpest minds in fintech and mobile engineering.
• Build products that traders, investors, and financial professionals rely on daily.
• A culture that values bold innovation, fast execution, and pushing boundaries.
• Expect challenges, high expectations, and relentless pursuit of excellence.
• Take complete ownership—from ideation to deployment, every pixel and every line of code should scream excellence.
• Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of fintech mobile applications.

Introduction :

iOS is one of the world’s leading mobile platforms, which makes Aertrip’s iOS app supremely important. Millions of users worldwide shall access Aertrip via the iOS app. You will have the opportunity to build one of the most amazingly designed apps in the world. The app shall be a benchmark - not just in the field of travel but for app developers worldwide across categories. 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 would be responsible for the complete development and continuous improvement of our iOS app.

Preferred Qualification & Experience :

Bachelor's Degree in Computer Science or equivalent experience/knowledge

5+ years of software engineering

3+ years of IOS platform experience, with strong background in algorithms.

Proficient with Swift, Objective-C, and Cocoa Touch

Experience with iOS frameworks such as X Code, Core Data, Core Animation, etc.

Familiarity with RESTful APIs to connect iOS applications to back-end services

Understanding of Apple’s design principles and interface guidelines

Knowledge of third party SDK integrations.

Hands-on technical experience with scalable Architecture.

Unit-test code for robustness, including edge cases, usability, and general reliability

Experience with performance and memory tuning

Familiarity with cloud message APIs and push notifications

Knowledge of other web technologies and UI/UX standards

Proficient understanding of code versioning tools such as Git

Preferred Skills & Abilities :

As a Developer:

Write clean, manageable code and maintain proper documentation

Capable of designing large applications with stabllity and performance

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

We are seeking a talented and passionate Flutter Developer to join our development team. In this role, you will be responsible for designing, developing, and maintaining cross-platform applications using Flutter for mobile (iOS and Android), web, and desktop (Windows/macOS/Linux)platforms. You will work closely with product managers, designers, and other engineers to deliver exceptional user experiences that run seamlessly across devices.

Tasks:

You will be building multi-platform applications for Android and iOS using Flutter and Kotlin Multi Platform (libraries).

Building multi-platform applications for Android and iOS using Flutter

Ability to provide accurate estimates, work under pressure and meeting deadlines

Writing clear and reader-friendly code using Dart.

Unit testing

Git and Jira

Bonus Skills

Knowledge of native platforms Android (Java/Kotlin) and/or iOS (Swift)

Kotlin Multi Platform

Requirements:

Bachelor's degree in Computer Science (or related field)

Expertise in Object Oriented Design, Database Design, and XML Schema

Experience with Agile or Scrum software development methodologies

Ability to multi-task, organise, and prioritise work.

Experiance Range:

5+ year

Click here to know more - https://jstechalliance.jtep.io/api/hms/v1/candidate/form/48

1. Integrate the design into high quality code
2. Ensure the performance, quality, and responsiveness of application
3. Identify and correct bottlenecks and fix bugs
4. Work along-side other developers working on different platform for the Application.
5. Therefore, commitment to collaborative problem solving, design implementation and creating quality product is essential

1. Minimum 2 years of experience in iOS Application Development
2. Proficient with iOS SDK, Swift and Cocoa Touch
3. Understanding of Apple's design principles and interface guidelines
4. Must have already deployed at least one app on AppStore
5. Working knowledge of Web Services & REST (JSON) APIs, SQLite, Google API
6. Integration, Firebase
7. Familiarity with cloud message APIs and push notifications
8. Experience with third-party libraries and APIs
9. Strong mobile UI design and implementation experience
10. Understanding of code versioning tools

• Proven software development experience and iOS skills development
• Proven working experience in iOS app development and
• Have published at least one original iOS app
• Experience with iOS SDK
• Experience working with remote data via REST and JSON
• Experience with third-party libraries and APIs
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
• Experienced in SWIFT Language

• Design and build advanced applications for the iOS platform
• Collaborate with cross-functional teams to define, design, and ship new features
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

• Proven software development experience and Android skills development
• Proven working experience in Android app development and
• Have published at least one original Android app
• Experience with Android SDK
• Experience working with remote data via REST and JSON
• Experience with third-party libraries and APIs
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies

• Design and build advanced applications for the Android platform
• Collaborate with cross-functional teams to define, design, and ship new features
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

• 5+ years of JavaScript experience
• Extensive experience with Angular and Ionic
• 5+ years of object-oriented software development of web applications
• Mobile app development and testing (Android and IOS)
• Deep knowledge of AngularJS practices and commonly used modules based on extensive work experience
• Preferable Experience in Cloud Technologies (AWS, AZURE)
• Experience with MS SQL stored procedures, database design and optimization
• Experience developing and utilizing web services
• Experience with high volume consumer-oriented web sites
• Experience working in an Agile Scrum environment
• Experience with formal test procedures, release management
• Preferable Travel industry experience preferred, especially programming associated with GDS’s - SABRE, Farelogix, and Travelport
• Ability to distill complex business needs into functional requirements
• Excellent follow-up, verbal and written communication skills
• Excellent problem-solving skills and an ability to make good decisions
• Team player with a professional attitude
• Ability to manage multiple tasks and maintain tight schedules
• Ability to work effectively with a geographically dispersed team in India

Strategic and Development Responsibilities

• Ability to "think outside the box"
• Ability to provide accurate and timely project estimates.

Software Tools/Languages

Required:        MS Visual Studio, MS SQL Server Management Studio, IIS, AWS, Angular, Ionic, Android, C#, Web Services, MS SQL (stored procedures), Jenkins, DevOps Tools.

Education

• Bachelor of Science in CS, MIS, or equivalent.