Android Developer

Required Skills: Advanced Flutter & Dart Expertise, Scalable Mobile Architecture Design, Performance Optimization & Profiling, OTT & Media App Engineering, Code Quality, Leadership & Cross-Functional Collaboration

Criteria:

• 6+ years of total software development experience with minimum 3+ years in Flutter
• Product-based company experience is mandatory (B2C scale preferred)
• Proven ability to own end-to-end Flutter mobile architecture for high-scale apps
• Strong expertise in Dart, Flutter SDK internals, and advanced state management (Bloc / Riverpod / Provider)
• Hands-on experience with platform channels and native integrations (Android & iOS)
• Deep knowledge of performance optimization: app startup time, FPS, memory leaks, widget rebuilds, rendering pipeline
• Experience with profiling tools (Dart DevTools, Android Profiler, Xcode Instruments)
• Strong skills in offline-first architecture, caching layers, and API integrations
• Ability to optimize video playback, downloads, DRM, and OTT workflows
• Strong command of clean code, SOLID principles, and scalable mobile system design
• Experience reviewing code and mentoring engineers (Senior IC role)

Description

Role Overview

We are looking for an experienced Flutter SDE III who can take complete ownership of architecture, performance optimization, and app scalability for our OTT mobile applications. This is a senior individual contributor role requiring deep technical expertise and the ability to influence design decisions at a product level.

Key Responsibilities

1. Architecture & Design (High-Impact IC Role)

• Own the end-to-end architecture of company’s Flutter mobile applications.

• Design scalable, modular, testable app ecosystems aligned with OTT-specific performance constraints.

• Lead decisions around state management, navigation hierarchy, API structure, offline capabilities, and security.

2. Performance & Device Optimization

• Diagnose and resolve mobile performance bottlenecks, including:

  o App startup time, FPS drops, memory leaks.

  o Heating issues, over-rendering, and expensive widget rebuilds.

  o Battery optimization, efficient network calls, caching strategy.

• Run in-depth profiling using tools like Dart DevTools, Android Profiler, and Xcode Instruments.

3. OTT-Specific Engineering

• Optimize video playback workflows for low-latency streaming.

• Implement efficient background processes for downloads, DRM, content sync, and push notifications.

4. Product & User Experience Ownership

• Collaborate closely with Product, Backend, and Video Engineering teams.

• Convert business/product requirements into high-performance technical solutions.

• Ensure UI/UX consistency across platforms while maintaining performance budgets.

5. Code Quality & Leadership

• Write clean, extensible, and maintainable code with strong adherence to SOLID and reactive programming principles.

• Review code for mid-level and junior engineers; act as a mentor across teams.

• Establish engineering standards, internal frameworks, and reusable components for long-term scalability.

Required Skills & Experience

Technical Must-Haves

• 6+ years of total experience with 3+ years in Flutter for large-scale products.

• Mandatory product-based company background (B2C scale preferred).

• Strong expertise in:

  o Dart, Flutter SDK internals

  o Bloc, Riverpod, Provider, or other state management approaches

  o Custom animations, rendering pipeline, shader-based optimization

  o Platform channels (Android/iOS) and native integrations

  o API integration, caching layers, offline-first architecture

• Strong understanding of mobile system design, scalable architecture, and low-level performance engineering.

Good to Have

• Experience with video streaming apps, OTT platforms, or media-heavy applications.

• Understanding of analytics frameworks (Firebase, Segment, Mixpanel).

• Exposure to CI/CD pipelines, automated testing, and fastlane.

Personality & Mindset

• Product thinking, not just feature-building.

• Ownership-driven with strong ability to take strategic technical decisions.

• Comfortable working in a fast-paced 0→1 and scale-up environment.

Why Join company?

• Work on a high-growth OTT app with millions of users.

• Opportunity to own the core mobile experience end-to-end.

• Build impact-heavy features at scale with a lean, highly skilled engineering team.

Job description:

Company Overview

Teknobuilt is an innovative construction technology company accelerating Digital and AI platforms to help all aspects of program management and execution for workflow automation, collaborative manual tasks and siloed systems. Our platform has received innovation awards and grants in Canada, UK and S. Korea and we are at the frontiers of solving key challenges in the built environment and digital health, safety and quality.

Teknobuilt vision is helping the world build better- safely, smartly and sustainably. We are on a mission to modernize construction by bringing Digitally Integrated Project Execution System - PACE and expert services for midsize to large construction and infrastructure projects. PACE is an end-to- end digital solution that helps in Real Time Project Execution, Health and Safety, Quality and Field management for greater visibility and cost savings. PACE enables digital workflows, remote working, and AI based analytics to bring speed, flow and surety in project delivery. Our platform has received recognition globally for innovation and we are experiencing a period of significant growth for our solutions.

Job Responsibilities

As a Mobile App Developer, you will need to:

• Flutter: To build cross-platform mobile apps for Android, IOS. This should include making responsive UIs to efficiently query data and also manage states in an optimised manner.
• Native Android and IOS: To build custom Flutter Packages.
• Firebase: Should have experience with Cloud Fire Database, Push Notifications, Cloud Functions and Analytics.
• Adobe XD: Should know how to use Adobe XD to use the design file and use it to build the app.
• Git: To manage and collaborate in different projects with the rest of the team.
• Design and build sophisticated and highly scalable apps using Flutter.
• Build custom packages in Flutter using the functionalities and APIs already available in native Android and IOS.
• SQLite: Understanding of persisting data with the SQLite database.
• Experienced in working with remote data via REST and JSON.
• Use CI/CD for smooth deployment.
• Must have built at least one Android, iOS, apps with Flutter or Hybrid Framework.

Qualification

Bachelor’s degree in computer science, IT or related fields

Key skills for Mobile App Developer

- Experience: 2 – 3 Years Flutter Developer, Android & IOS,

- Collaborate with cross-functional teams to define, design, and ship new features.

- Work with outside data sources and APIs.

- Worked on Dart.js

- 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 maximise development efficiency

- Good understanding of databases.

Salary Range: Competitive

Employment Type: Full Time (Night-shift work may be required depending on project needs)

Location: Mumbai / Navi Mumbai

We appreciate your interest in Teknobuilt

Job Type: Full-time

Work Location: In person

＃Must be Proficient in Swift, Objective C, Apple’s Xcode IDE

＃Knowledge of frameworks and APIs like Foundation, UIKit, and CocoaTouch

＃Apple Human Interface Guidelines

＃OpenGL or Metal, iOS graphics APIs

＃Familiarity with iOS 10 and newer OS versions

＃Knack for benchmarking and optimization

＃Experience on web service integration (SOAP, REST, JSON, XML)

＃Familiarity with cloud message APIs and push notifications

＃Using version control (e.g. SVN, GIT)

＃Excellent debugging and optimisation skills

＃Good to have backend development skills

We are looking for an experienced IOS developer who can help make our IOS app even more spectacular for the highest performing professionals globally.

About Track

The calendar is a tool that can assist you to achieve your highest human potential. Being productive with your time and collaborating efficiently with others is key to it. And Track (https://thetrackapp.com) is the fastest calendar experience ever. We've redesigned the calendar from the ground up to be fast, simple, effortless and also fun.

The Team

We are a small and efficient team and speed is part of everything we build and do

We are backed by amazing investors from India and US who have cofounded startups which had massive exits and the investors are currently on boards of Unicorn startups.

The Founder has over 12 years of experience in technology, studied and worked in the US for 8 years, and has cofounded a startup before.

Expected Skills :- 

1. Abillity to write API calls that work efficiently in the background
2. Ideally worked with Realm DB but SQLLite is fine 
3. Ability to take a design and create a replica using programmatic code. We don't use Storyboard. 
4. Should have great knowledge of Architecture patterns like MVC, MVVM 
5. Ability to work with Notifications 
6. ideally should have worked on Extensions
7. Excellent debugging skills
8. Excellent problem solving skills 
9. should understand how to make asyncronous non blocking API calls. 
10. Having worked on a Chat application that uses Websockets, or XMPP or Firebase would be a big bonus .
11. Having worked with OAuth2 flows or Google apis would alos be a big bonus

Personal Skills 
1. Go getter attitude. Should look for things that can improve and then go ahead and make them better. 

How we hire? 

You typically do a project that can be completed within a week. If the quality is great, we will pay you for it. Sometimes that's good enough. Sometimes we may to a problem solving / algorithm interview after that. 

• Experience in writing code/functions that are Unit-testing ready and scalable.
• Strong knowledge in auto layout concepts.
• Experience developing rich UI using MVVM, RxSwift, Auto Layout, Storyboard, and UI animations.

• Need to be working in a collaborative environment with team members of the organization.
• Keep up the urge to learn and adapt to new technologies throughout the period of employment.
• Understand end-user needs and translate broad business requirements and objectives into technical
requirements, plans, and designs.
• Take up technical problems during the app development life cycle and bring up optimized solutions to the
same.

As an Architect you are responsible for research, design, test, implement, and maintain Android applications
to meet client needs. You are expected to be Subject Matter Experts on Android application architecture.
You are also expected to demonstrate value to the organization by mentoring other team members as they
learn and grow, take ownership and responsibility not only for your deliverables, but for the entire
application and its use, and to find a balance between achieving software excellence and delivering working
code.
Roles and Responsibilities
o Involved with all phases of mobile app development from initial concepts, through design, development,
testing and deployment
o You will help guide multiple Agile teams with open communication channels, regular releases, and a
focus on continuous improvement.
o Guide and mentor a team of Android developers and work closely with Quality Engineers
o Establish best practices and processes that ensure quality within the team
o Champion our best practices and mentor team on use and results of these best practices
o Responsibility for product both pre and post launch to ensure application is meeting customer needs
and achieving continued revenue goals
o Architect, Lead, implement and review new features for android phones and tablets.
o Interactive communication of designs and other development topics to Leadership, Product Owners,
Scrum Master and other Agile Team members.
o Lead code reviews to ensure code quality and shared knowledge.
o Research and analyze the existing code base to identify issues and improve application performance and
maintenance.
o Take ownership and sense of responsibility of all deliverables.
o Work within SCRUM agile process with other stakeholders (Product Owners, XD design, Quality
Engineers) as well as across organization to balance creative objectives with business needs and
technical requirements
Looking for experienced senior Android and iOS mobile architect / developers to join an established team working on a Tier 1 personal cloud platform with 20M+ subscribers.   Candidates will be joining at an ideal time as the program undertakes a technology refresh in migrating toward progressive web application technology.  Candidates will have the opportunity to be hands on while also leading design activities and implementing programs to improve quality and productivity.    Will have a direct channel to the product leadership team for support of transformation initiatives.

ho we have in mind:
• 10+ years of experience in developing native Android application(s). Kotlin is a must.
• Understanding of Hybrid application development is a plus.
• Solid understanding of the full mobile development life cycle.
• Expert in multi-threading concepts to create highly responsive data intensive applications
• Experience leading large development teams in active Lead/Architect role
• Experience architecting mobile applications main focus on Android apps.
• Expert on Android OS, Android UI design principles, Android architectural components, Android
design patterns (MVP, MVVM), best practices and a desire to learn and apply new technologies.
• Ability to design for scalability and resilience
• Strong application process flow and problem-solving techniques
• Experience with RESTful web services using XML/JSON data formats
• Strong focus on refactoring and code quality
• Understanding of software configuration management and release management
• Expert in creating design and maintain architecture documentation, class diagrams, technical flow
documents etc
• High levels of software engineering literacy and communication skills
• Professional demeanor who works easily with leadership, product owners, engineers and other
departments both internally and externally

Hey 

We are looking for freelance iOS Developers for our new startup. 

If you believe you are a developer who can follow all best practices and create quality apps, only then apply for this job. 

We can allow you to work on your desired time frames each week, but we are strict about deadlines. 

We expect you to be good at

- Managing rest services 
- Managing cache and permanent storage

- Preparing pixel perfect UI which is compatible with all screen sizes (designs will be given)

- Daily pushing your code using Git 

- Writing clean and understandable code

All the best!