What you will be Doing
- Design and build applications for the Android platform
- Ensure the performance, quality, and responsiveness of applications
- Collaborate with a team to define, design, and ship new features
- Identify and correct bottlenecks and fix bugs
- Help maintain code quality, organization, and automatization
What you need
- Expertise with Java, XML, and Material Design
- Experience with offline storage, threading, and performance tuning
- Familiarity with RESTful APIs to connect Android applications to back-end services
- Experience with Firebase is a plus (FCM, analytics) - Understanding of Android’s design principles and interface guidelines
- Strong communication skills, get-things-done attitude, and empathy
- Strong sense of ownership, drive and obsessive attention to detail. - Comfortable with iterative development practices and code reviews
- Previous experience as part of a product-oriented team is a plus
Why you should consider this role seriously?
- We have an audacious vision of helping companies fight counterfeiting and managing their supply
chain more efficiently
- We have built a product and solved problems for some of the largest brands in the country and
tested platform at scale (With our tags present in over 50 Million products already). We have plans to
grow 10x in the next 1 year
- Ownership of key problems. Fast-paced environment
- We are a well-balanced team of experienced entrepreneurs and are backed by top investors across
India and the Silicon Valley (Venture Highway, Startup Buddy etc.) - Competitive market salary
- Opportunity to work directly with the CEO, COO, CTO of the company
- A chance to interact with top-notch executives from multiple industries
- Open vacation policy (and we really mean it!) - Open Pantry
- As a team, we love to travel :). An off-site every quarter

About O4S
About
Connect with the team
Similar jobs
We are looking for an Android Developer. As an Android
Developer, you will work within our engineering team to
deliver functional & user-friendly Android applications in a
timely manner.
Requirements:-
Degree in Computer Science, Engineering, or a
related field
Experience: 3 to 5 Years
You have prior experience as an Android Developer
using Kotlin, Java, Android SDK, Android NDK
You have experience in publishing an application on
the Google Play store
Proven work experience in design patterns mobile
architecture using frameworks such as
MVVM/MVC/MVP
Familiarity with RESTful APIs to effectively integrate
Android applications
Proficient understanding of code versioning tools
such as Git
Familiarity with various testing tools
You are a problem solver with good analytical skills
Responsibilities:-
Writing clean and efficient codes for Android applications
Monitoring the performance of live apps and work on optimizing them at the code level
Identifying and resolving bottlenecks, rectifying bugs, and enhancing application performance
Performing unit and instrumentation tests on code
Collaborating with cross-functional teams to define and design new features
Staying up to date with new mobile technology trends, applications, and protocols
Responsibilities
- Collaborate with the core team building a state-of-the-art blockchain based SaaS platform.
- Building mobile applications using latest technologies leveraging Android, node and mongo.
- Apply comprehensive knowledge and a thorough understanding of concepts, principles, and technical capabilities to perform varied tasks and projects.
- Backend RESTful API Design and server-side development for web and mobile apps.
- Develop and design database schemas on MongoDB.
- Perform code reviews and unit tests to ensure code consistency and maintainability.
Minimum Qualifications & Qualities
- Passion to solve complex problems of agriculture in a dynamic start-up environment
- Flexible, curious, exploratory, and can-do attitude
- Great sense of ownership and ability to work with very limited supervision
- Bachelor's degree in Computer Science, related technical field, or equivalent practical experience.
- 1+ year of hands-on coding expertise in software engineering.
- Experience with Android, Node.js, mongodb
- Ability to speak English fluently.
Preferred Qualifications
- Strong programming experience of 1+ years with Android, Node.js, Express.js, MongoDB.
- Strong problem solving/troubleshooting skills.
- Experience with SDLC in an Agile work environment using tools like Jira and GitHub.
- Knowledge and experience of NoSQL Databases is a must.
- Knowledge of AWS Services like ECS, EKS, EC2, S3, Lambda, Load Balancing, Route 53, API Gateway along with Infrastructure provisioning and optimization is an advantage.
- Experience with DevOps, CI/CD pipelines on Jenkins, GitHub Actions,
- Experience with containerization environments like Docker & Kubernetes is an advantage.
- Familiar with TDD, CI/CD, Infrastructure as Code
- Knowledge of any Blockchain protocols like Hyperledger is clearly an undue advantage
Job Description:
- Strong proficiency with JavaScript / Core Java and other related technologies.
- Expertise in developing models and scalable Microservices components.
Good to have:
- Knowledge of Databases such as MySQL, DB2, Oracle and etc. (at least one)
- Basic understanding of front-end technologies, such as HTML5, and CSS3
Roles & Responsibilities:
- Developing and maintaining scalable APIs using Node.js
- Writing reusable, testable, and efficient code
- Integrating user-facing elements developed by front-end developers with server-side logic
- Designing and implementing low-latency, high-availability, and performant applications
- Implementing security and data protection measures
- Integrating data storage solutions (MongoDB, MySQL, etc.)
- Staying abreast of developments in web applications and programming languages
Experience of design and development of Enterprise grade Mobile application
Hands on experience in performance tuning, debugging, monitoring
Experience designing clean and maintainable APIs
Experience with multithreaded programming, reusable frameworks, UI components, Android Jetpacks
tools and optimization techniques
REST API based web service and other system integration, web service integration,
Preferably have working experience of technologies like webRTC, ReactJS, NodeJS, JSON, Other hybrid
application development platform
Previous experience of developing VoIP based solution, live streaming/video calling based application
Nice to have: experience on Server side technologies like: J2EE, PHP. RDBMS knowledge on
MySQL/Oracle; Other associated technologies like: Git, JIRA, AWS technologies, Linux; Agile development
methodologies; Design Patterns like: MVC, MVVM ; Knowledge on various Security standards
DevOps understanding is a plus.
Previous experience of working in Product/Solution development or Start-ups will be added advantage
Domain Knowledge: Health care
Good Communication skil
We are looking for a Senior Android Developer responsible for the development and maintenance of applications aimed at a range of Android devices including mobile phones and tablet computers.
Job Description -
Job Title: Expert Android Developer (Home Automation)
Experience: 5 to 8 Years experience
Job Location: Indore, Madhya Pradesh, India
Salary: Open (No bar for the right candidate) upto 12 Lac
Joining: Immediate (prefer less than 15 days Notice Period)
Skills: Android, Rx java , Java/J2EE, Core Java, etc.
Job Purpose:
The Android Engineer is responsible for building advanced applications for the Android Phones & Android Tablets. The candidate is required to work closely with Development, QA, Project Managers, Designers, and other team members daily to ensure the timely and cost-effective delivery of the final product that exceeds client expectations.
Thanks & Regards
HR Manager
Contract length: 24 months
Expected Start Date: 1/3/2021
Job Types: Full-time, Contract
Salary: Up to ₹1,200,000.00 per year
- B.E/M.C. A Or B.C.A Degree in Computer Science, Engineering, MIS, Or Similar Relevant Field
- Strong Knowledge of Android SDK, Different Versions of Android, And How to Deal with Different Screen Sizes
- Familiarity with RESTful APIs To Connect Android Applications to Back-End Services
- Strong Knowledge of Android UI Design Principles, Patterns, And Best Practices
- Experience With Offline Storage, Threading, And Performance Tuning
- Ability to Design Applications Around Natural User Interfaces, Such As “Touch”
- Familiarity with The Use of Additional Sensors, Such as Gyroscopes and Accelerometers
- Knowledge of The Open-Source Android Ecosystem and The Libraries Available for Common Tasks
- Ability to Understand Business Requirements and Translate Them into Technical Requirements
- Familiarity with Cloud Message APIs And Push Notifications
- A Knack for Benchmarking and Optimization
- Understanding of Google’s Android Design Principles and Interface Guidelines
- Proficient Understanding of Code Versioning Tools, Such as Git
- Familiarity with Continuous Integration - Good Knowledge of Kotlin.
- At Least Publish 3-4 Application in the Play Store
- Knowledge of Cross-Platform And iOS Development Will Be an Advantage.
- Knowledge of health care and e-commerce domain will be good.
- Developing, releasing, and maintaining native Android Applications and oversee mobile application development efforts.
- Deliver across the entire app life cycle, design, build, deploy, test, release to app stores and support.
- Extensive experience in developing mobile apps using Android SDK with proficiency in Core Java and design patterns.
- Ensure the performance, quality, and responsiveness of the application.
- Work directly with the product manager to conceptualize, build, test and release products.
- Collaborate with a team to define, design, and ship new features.
- Work on bug fixing and improving application performance.
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
- Identify and correct bottlenecks and fix bugs in order to maintain code quality.
- Show leadership and focus on the completion of projects.
- Optimize performance for the app and keep up to date on the latest industry trends in mobile technologies.
- Working within a SCRUM team.
REQUIRED SKILLSETS
- Relevant industry experience of 2+ years.
- Great understanding of Android Development SDK.
- Understanding of Google's Material Design principles and interface guidelines.
- Expertise in Core Java with solid OOD principles and design patterns.
- Experience with Git, Retrofit, JetPack, RxJAVA 2, Kotlin, basic knowledge of NDK.
- Experience with development in Kotlin and Google Activity Tracker applications is a plus.
- Knowledge of Databases like SQL Lite, Realm, Room, etc.
Conversant with JSON API (i.e. RESTful APIs). - Should have experience in writing Android Studio Test Cases.
- Experience with SaaS platforms for mobile development like Analytics, Push Notifications, Cloud Storage, Ad Networks, etc.
- Hands-on experience with Android's debugging, unit testing, memory, and performance optimization tools.
algorithms, and software engineering principles
• Passionate about creating great code
• Multiple years of experience in Android application development, with Java and/or
Kotlin. Kotlin experience is a major advantage.
• More than one published application on the Google Play store available for immediate
download and review by our team. Please provide names of all your apps that you've
worked with a brief description of your contribution (if not individually developed).
• Strong experience in building and publishing commercial applications to Google Play
store.
• Multiple years of in Java I/O, RDBMS, Networking, Generics and well-known
application frameworks.
• Solid Understanding of Android design principles and interface guidelines.
• Experience with performance and memory tuning using tools
• Experience coding with RESTful APIs to connect applications to back-end services.
• Great team player who works well in collaborative situations
• Experience with iOS app development is a major plus. Experience with cross-platform
tools would be an advantage
• Experience with tools like Git, Jira, Basecamp, BitBucket, Azure DevOps would be an
advantage.
• Good to have experience working with IOT projects, Bluetooth technologies
• Active Open Source, GitHub or Stack Overflow contribution will be a big plus
• Having personal apps in play store will be an added advantage
• Working knowledge of the general mobile landscape, architectures, trends & emerging
technologies.







