
1. Engage in Firefox OS development and Boot 2 Geko development
2. Develop apps for Firefox web OS
3. Develop an app store for Firefox OS

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Job Details
- Job Title: Software Developer (Python, React/Vue)
- Industry: Technology
- Experience Required: 2-4 years
- Working Days: 5 days/week
- Job Location: Remote working
- CTC Range: Best in Industry
Review Criteria
- Strong Full stack/Backend engineer profile
- 2+ years of hands-on experience as a full stack developer (backend-heavy)
- (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures
- (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS
- (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis
- (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS
- (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring
- (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design
- Product companies (B2B SaaS preferred)
Preferred
- Preferred (Location) - Mumbai
- Preferred (Skills): Candidates with strong backend or full-stack experience in other languages/frameworks are welcome if fundamentals are strong
- Preferred (Education): B.Tech from Tier 1, Tier 2 institutes
Role & Responsibilities
This is not just another dev job. You’ll help engineer the backbone of the world’s first AI Agentic manufacturing OS.
You will:
- Build and own features end-to-end — from design → deployment → scale.
- Architect scalable, loosely coupled systems powering AI-native workflows.
- Create robust integrations with 3rd-party systems.
- Push boundaries on reliability, performance, and automation.
- Write clean, tested, secure code → and continuously improve it.
- Collaborate directly with Founders & Snr engineers in a high-trust environment.
Our Tech Arsenal:
- We believe in always using the sharpest tools for the job. On that end we always try to remain tech agnostic and leave it up to discussion on what tools to use to get the problem solved in the most robust and quick way.
- That being said, our bright team of engineers have already constructed a formidable arsenal of tools which helps us fortify our defense and always play on the offensive. Take a look at the Tech Stack we already use.

Job Description :
Responsibilities :
- Design and develop Python-based microservices
- Build and operate gRPC / Protobuf-based APIs
- Implement asynchronous processing, concurrency, and job orchestration
- Design systems with retries, idempotency, and fault tolerance
- Work with and integrate native C/C++ components with Python services
- Design and optimise PostgreSQL schemas and queries
- Contribute to React-based frontend applications (TypeScript/JavaScript)
- Own features end-to-end : design, development, deployment, and monitoring
- Debug issues across application, system, and performance layers
- Build and maintain CI/CD pipelines and automated tests
Requirements :
- Strong experience in Python backend development (sync + async)
- Hands-on experience with gRPC / Protobuf-based APIs
- Experience with FastAPI / Flask / Django
- Strong understanding of microservices and distributed systems
- Experience with PostgreSQL and data modeling
- Exposure to React / JavaScript / TypeScript
- Knowledge of concurrency, multi-threading, and system design
- Strong understanding of Linux systems and debugging
- Experience in production environments (performance tuning, issue resolution)
- Exposure to C/C++ or Python-native integrations (preferred)
Qualification :
- Engineering Graduates from Tier 1 & Tier 2 Colleges/Deemed Universities only
- Open for candidates from outstation.
- Experience range : 12 - 15 years (but not more than 15 years of experience)
- Strictly Individual contributors, Handson coding. 80% Individual Contributor & 20% Architecture, Design, Systems
Responsibilities
Technical Development & Delivery
- Lead the development and release process for assigned products and platform components.
- Design, develop, and maintain secure, scalable, and high-performing applications using .NET Core / .NET 6+.
- Develop modern front-end interfaces using JavaScript frameworks (React / Next.js) or Blazor.NET / WPF.
- Collaborate with developers to integrate user-facing elements with server-side logic and APIs.
- Build and maintain RESTful APIs, microservices, and backend services.
Product & Cross-Functional Collaboration
- Work closely with Product, QA, and DevOps teams to deliver new features and enhancements.
- Participate in technical discussions and product planning, helping prioritize development tasks and improvements.
- Act as a technical subject matter expert for relevant product modules when needed.
Database & Platform Support
- Work with Cosmos DB and SQL-based databases to support application functionality.
- Collaborate with DBAs to design and maintain database schemas, queries, and stored procedures.
- Support UAT and production environments, troubleshooting technical issues and ensuring system reliability.
Quality, Security & Performance
- Work with Quality Assurance teams to ensure the delivery of high-quality and reliable software.
- Implement secure coding practices and support vulnerability assessments and security audits.
- Monitor and optimize application and API performance.
- Contribute to logging, monitoring, and alerting mechanisms to support system observability.
Mentorship & Team Development
- Mentor and support junior developers and new team members.
- Promote best practices in coding, testing, and documentation across the engineering team.
- Contribute to continuous improvement of development standards and engineering processes.
Absolute Must have’s (essential requirements)
- Strong expertise in C# and .NET Core / .NET 6+ development.
- Experience with at least one of the following front-end technologies:
- Blazor.NET or WPF
- JavaScript frameworks such as React or Next.js
- Strong understanding of object-oriented programming, design patterns, and domain-driven design.
- Experience with SQL Server / PostgreSQL and Entity Framework Core.
- Familiarity with tools such as Syncfusion, Datatables, and AutoMapper.
- Experience building and integrating RESTful APIs and microservices.
- Proficiency with Git and CI/CD pipelines.
- Exposure to cloud platforms such as Azure or AWS.
- Strong problem-solving, debugging, and analytical skills.
Good to have (preferred/optional requirements)
- Experience working with modular application frameworks such as ABP.IO.
- Understanding of payment systems, financial platforms, or transaction processing systems.
- Experience working in Agile / Scrum environments.
- Familiarity with DevOps practices, Docker containers, and Kubernetes.
Responsibilities
- Join the product research team to develop the leading Geodata and GeoAI platform in Hong Kong
- Be part of the product team to develop web front-end interface with a focus of data and AI application
- Develop automated software in Arical data and AI pipeline
- On job training for rapid product development cycle
- Will have to deliver reliable and maintainable code
- Use analytical skills effectively for hands on problem solving
- Translate UI/UX design wireframes to actual code
- Work with UI/UX designer
Requirements
- Degree or above in Computer Science, Information Systems, or related fields
- Coursework in programming, data science, machine learning, AI and databases
- Strong organizational and project management skills
- Proficiency with client-side scripting and database technology
Technical skills
- Knowledge of one or more system programming languages (Python, C++, Java, etc)
- Knowledge of MongoDB and other NoSQL data stores such as Redis
- Proficiency with HTML, CSS, JavaScript, cross-browser optimization
- Proficiency with one or more front-end web development framework (Bootstrap, Angular, React)
- Knowledge of one or more web-scripting languages (PHP, Rudy, Node.js etc)
- Knowledge of web-scraping library (Beautiful Soup, web driver etc)
- Knowledge of API packaging and Docker deployment
- Knowledge of app development
- Knowledge of UI/UX design
Details
- Work from home
- Ability to code and implement front-end web applications and backend processing systems.
- Research, evaluate, and prototype new methodologies, technologies, Prepare proofs-of-concept.
- Convert business requirements into technical documentation using UML diagrams.
- Accountable for peer review, and quality using various design principles and patterns.
- Responsible for team members learning.
- Enforce to follow Secure Coding guidelines.
- Provide clear communication and set expectations to team members.
- Assist Project Manager in defining and refining project scope and work.
- Foreseeing the project risk and define mitigation plan and keep the manager updated.
Skills Required:
- Multi-tier Web Services / RESTful APIs
- C++, Java, C#, .Net
- Web API Frameworks (spring, ASP .NET Core, ExpressJS, etc.)
- Frontend Javascript Frameworks (Angular, React, etc.)
- Understanding and usage of the unit testing framework. Like NUnit, x unit, and JUnit
- Knowledge of SQL and writing queries
- Agile and DevOps methodologies
- Effective communication, Teamwork, Team Handling, Adaptability, Flexibility, Leadership, Problem-solving, Work Ethics, and Creativity.
- Well-versed with the version control systems. Like git, gitlab, bitbucket etc.
- Good to have knowledge of Microservices architecture.
Education Required:
- Candidates with Bachelor's Degree in Computer Science (or equivalent) are preferred.
Required experience and skills
- Bachelors degree in Computer Science and Engineering. Bonus: Masters degree.
- 3+ years of total full-time work experience, preferably shipping SaaS applications.
- Startup experience strongly desired and comfortable wearing multiple hats.
- Proficiency in
- 1. Ruby, Ruby on Rails, Mysql, Linux, Git, AWS, CI/CD, NewRelic.
- 2. broad range of internet technologies and applications.
- Knowledge of frontend technologies and frontend development experience is prized and a plus. We use React and React Native for our web app and mobile apps respectively.
- Keep high quality performance, scalability, availability & security in mind to build, extend, and maintain web front end, mobile, and backend components of an evolving, real-time application
- Write bug free clean, elegant, testable code that scales well, and is delivered on time.
- Very curious and self driven.
Responsibilities
Your responsibilities include:
-
- Completing moderately complex projects containing some ambiguity with minimal oversight
- Troubleshooting and resolve most common production issues without assistance; being able to determine basic troubleshooting steps for uncommon production issues and occasionally contributes to on-call runbook
- Removing most blockers individually and proactively escalate or seek assistance to become unblocked quickly
About Tophatter
Tophatter is re-imagining discovery commerce in a world increasingly connected by smartphones. We are the world's fastest, most entertaining marketplace for mobile shoppers.
We believe that learning should be fun - especially for young kids who are our future. We build smartphone and tablet based games, which delight kids, while they learn and practice Math.
Who Do We Hire?
At Makkajai, we hire the best minds in technology to innovate, build and break things so that kids could have the best learning experience possible.
Our challenges are big - impacting millions of kids worldwide and our path is not always easy. We’re selective about who joins us on this journey. There’s a certain kind of person who takes on the challenges of game development at Makkajai:
Someone excited by the idea of owning;
People who like to build new products, features and services from scratch,
Developers who can manage the ambiguity and pace of a company whose ship cycles are measured in days, not months.
Full Stack Developer, Pune
Exp Range: 2-4 Years
We are looking for smart and driven Full Stack Developers to join our team in Pune. The work involves -
Building learning games (using Unity).
Maintaining and enhancing existing suite of learning games.
Designing and writing code in any Object Oriented programming language - writing cross-platform code that works on multiple device formats
Iterative development and playtesting with kids
Constant self learning to improve skills
Work closely with other team members - pedagogy experts, game designers, testers, marketing - to ensure that the products we build are a success.
Must Haves
Good understanding of CS fundamentals, OOPS, data structures and algorithms
Strong programming skills in any of the OOP languages.
Good knowledge of SQL and at least one database
Should be familiar with basic design patterns and other coding standards and other good practices.
Practical coding experience
Excellent problem solving skills
Working knowledge of MAC, UNIX or Linux systems
Very good interpersonal and communication skills
Good To Haves
Exposure to C++/C#/Java and Objective C.
Exposure to Unity.
Any game-making experience
Any mobile app development experience.
Open to learning new programming languages and frameworks






