Java Full Stack Developer

Software Development Engineer (SDE) – Mobile / Full-Stack Developer (IoT & AI)

Company: PGAGI Consultancy Private Limited 

Industry: AI & Emerging Technology Startup 

Role Type: Full-Time 

Work Mode: Work From Office 

Experience Required: Minimum 2 Years 

Location: Bangalore

About PGAGI

PGAGI Consultancy Private Limited is an AI-driven technology startup focused on building intelligent, scalable, and real-world digital solutions across AI & next-generation software systems.

We are looking for highly driven engineers who enjoy solving practical problems, building production-ready systems, and working across multiple technologies in a startup environment.

About the Role

We are looking for an SDE with strong React Native mobile development experience, full-stack development knowledge, and a clear background in IoT-based systems.

The candidate should have hands-on experience working with mobile applications that interact with IoT devices, sensors, hardware systems, real-time device data, or cloud-based IoT platforms.

Knowledge of AI-based systems, AI integrations, automation workflows, LLMs, or AI-powered product features will be considered a strong advantage.

The ideal candidate should also have basic team-leading capability, ownership mindset, and the ability to manage technical execution with a small development team.

Key Responsibilities

1. Develop and maintain mobile applications using React Native.
2. Build scalable, reusable, and production-ready mobile app components.
3. Integrate mobile applications with backend APIs, databases, and cloud services.
4. Work on IoT-based integrations, including:

• Device-to-app communication
• Sensor data handling
• Real-time device monitoring
• MQTT / WebSocket-based communication
• Hardware-software interactionIoT dashboard or control system integration

5.Collaborate with hardware, backend, frontend, AI, and product teams.

6.Work on AI-enabled features where required, such as:

• AI-based automation
• Data analysis
• AI alerts or recommendations
• LLM/API integrations
• Smart monitoring or decision-support systems

7.Lead small development tasks and guide junior developers.

8.Review code, debug issues, and improve application performance.

9.Participate in architecture planning and technical decision-making.

10.Ensure proper documentation of mobile flows, APIs, IoT integrations, and system logic.

Required Skills

• Minimum 2 years of experience in React Native mobile development.
• Strong knowledge of JavaScript / TypeScript.
• Experience in mobile app development for Android and/or iOS.
• Hands-on exposure to IoT systems or IoT-enabled applications.
• Experience working with IoT device data, sensors, MQTT, BLE, Wi-Fi modules, embedded systems, or real-time hardware communication.
• Experience with REST APIs, WebSockets, and real-time data handling.
• Basic full-stack development knowledge using Node.js, Python, FastAPI, Express.js, or similar backend technologies.
• Database knowledge such as MongoDB, PostgreSQL, Firebase, or similar.
• Understanding of Git, debugging, deployment, and development workflows.
• Ability to lead tasks, coordinate with team members, and take ownership of delivery.

AI Knowledge — Strong Priority

Candidates with knowledge or experience in the following will be preferred:

• AI-powered applications
• LLM API integrations
• OpenAI / Gemini / Claude APIs
• AI automation workflows
• AI-based monitoring or analytics
• Predictive alerts or recommendation systems
• AI agents or intelligent assistants
• Prompting and AI workflow design

Good to Have

• Experience with AWS IoT, Azure IoT, Google Cloud IoT, Firebase, or similar platforms.
• Experience with MQTT brokers, BLE, embedded hardware, Raspberry Pi, Arduino, ESP32, or similar devices.
• Native Android/iOS development knowledge.
• Experience building dashboards for IoT monitoring or device control.
• Prior experience in AI + IoT projects.
• Previous experience leading a small development team.

Candidate Expectations

• Must be comfortable working from the office.
• Should have strong ownership and problem-solving ability.
• Should be able to work across mobile, backend, IoT, and AI-related modules.
• Should communicate clearly with both technical and non-technical teams.
• Should be disciplined with timelines, documentation, and reporting.
• Should be capable of guiding junior developers and coordinating execution.

Why Join PGAGI?

- Opportunity to work on cutting-edge AI + IoT products.

- Fast learning and high-growth startup environment.

- Exposure to real-world intelligent systems and scalable architectures.

- High ownership and direct product impact.

- Collaborative engineering culture focused on innovation and execution.

About Us

21 Knots is a design, engineering, and consulting firm providing services to the global maritime and oil & gas industry. In an industry constantly evolving due to dynamic regulations, economic fluctuations, and climate change mandates, we strive to deliver cutting-edge solutions with an unwavering commitment to excellence. Our comprehensive services are designed to create value for our esteemed clients while enabling them to achieve their business goals.

The Role

We’re looking for a skilled and motivated Software Developer to join our team at 21 Knots. Someone with backend development with a working knowledge of frontend technologies. The ideal candidate will have a strong command of backend frameworks such as Django, FastAPI, or Flask, and familiarity with frontend tools like HTML, CSS, JavaScript, and optionally React, Angular, or Vue. You will play a key role in building, maintaining, and optimizing scalable software solutions while collaborating with a team

Responsibilities

• Develop,test, and maintain backend services using Django, FastAPI, or Flask.
• Design and implement RESTful APIs for web and internal tools.
• Work with relational and non-relational databases such as PostgreSQL, MySQL, or MongoDB.
• Optimize application performance and implement backend security best practices.
• Collaborate with frontend developers, designers, and cross-functional teams to deliver high-quality solutions.
• Write clean, maintainable, and well-documented code.
• Support basic frontend development tasks using HTML, CSS, and JavaScript.
• Work with modern frontend frameworks like React.js, Angular, or Vue (good to have).

What You’ll Need

Experience:

• 1–4 years of hands-on experience in backend development.
• Exposure to full-stack development environments.
• Experience working with RESTful APIs, databases, and cloud integration is a plus.

Education:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.

Tools & Software Proficiency:

• Proficiency in Django, FastAPI, or Flask.
• Familiarity with PostgreSQL, MySQL, or MongoDB.
• Basic knowledge of frontend technologies: HTML, CSS, JavaScript.
• Exposure to Bootstrap or Tailwind CSS for responsive UI design.
• Good to have: experience with React, Angular, or Vue.
• Familiarity with cloud platforms (AWS, Azure, or GCP) and Agile/Scrum methodologies is an added advantage.

Skills & Competencies:

• Strong problem-solving and debugging skills.
• Understanding of RESTful architecture and secure coding practices.
• Ability to collaborate in a cross-functional environment.
• Good verbal and written communication skills.

Requirements:

• 7+ years in enterprise application development
• Proven track record of delivering complex digital solutions
• Advanced knowledge of React hooks, context API, and component and global state management
• Experience with atomic design, component libraries, and TypeScript
• Proficiency in React performance optimization and modern features
• Strong experience with modern .NET (6+)
• Proven track record applying Clean Architecture & Clean Code & SOLID principles & DDD patterns
• Expertise in building scalable REST APIs and microservices
• Experience with Azure Service Bus, Event Grid, and message-based architectures
• Proficiency in resources like App Insights, Function Apps, Key Vaults, and App Services
• Expertise in cloud development and deployment strategies
• Strong understanding of business needs, ability to meet them by creating cutting-edge solutions
• Brilliant communication abilities, knowing how to explain technical details and processes to a non-tech person
• Fluency in English

Nice to have:

• Test automation (Playwright/Cypress)
• Building CI/CD pipelines in Azure DevOps
• API-first development and OpenAPI specifications
• Experience with agile at scale (SAFe/Spotify)
• Proficiency with AI-powered development tools (GitHub Copilot, Cursor, etc.) to enhance productivity
• Bachelor's or Master's degree in Computer Science or a related field

 Responsibilities:

• Front-end, API, and back-end development, ensuring the successful delivery of digital solutions
• Drive innovation by staying informed about emerging technologies, industry trends, and best practices
• Collaborate with the Product Manager, UX/UI Designers, and Engineering Manager to define agile technical requirements, provide technical estimation, and prioritize backlogs based on business needs and technical feasibility
• Participate in sprint planning, backlog grooming, and release planning meetings to ensure alignment between technical implementation and product roadmap
• Participate in hands-on development activities, including coding, debugging, and troubleshooting, to deliver high-quality applications
• Design, architecture, development of digital applications, ensuring adherence to best practices, coding standards, and architectural principles
• Design scalable architectures for multi-region deployment
• Implement test automation strategies and frameworks to automate testing processes and ensure the quality and reliability of applications
• Automate test cases and integrate testing into the CI/CD pipeline
• Conduct code reviews to ensure adherence to coding standards, best practices, and architectural guidelines
• Define and implement code best practices, development standards, and documentation processes to maintain code quality and readability
• Integrate digital applications with existing digital assets, backend systems, and third-party APIs, ensuring seamless data exchange and interoperability
• Collaborate with integration teams to design and implement integration solutions that meet business requirements and architectural standards
• Communicate technical concepts and solutions to non-technical stakeholders in a clear and understandable manner

A niche, specialist position in an interdisciplinary team focused on end-to-end solutions. Nature of projects range from proof-of-concept innovative applications, parallel implementations per end user requests, scaling up and continuous monitoring for improvements. Majority of the projects will be focused on providing automation solutions via both custom solutions and adapting machine learning generic standards to specific use cases/domains.

Clientele includes major publishers from the US and Europe, pharmaceutical bigwigs and government funded projects.

As a Senior Fullstack Developer, you will be responsible for designing, building, and maintaining scalable and performant web applications using modern technologies. You will work with cutting-edge tools and cloud infrastructure (primarily Google Cloud) and implement robust back-end services with React JS with Typescript, Koa.js, MongoDB, and Redis, while ensuring reliable and efficient monitoring with OpenTelemetry and logging with Bunyan. Your expertise in CI/CD pipelines and modern testing frameworks will be key to maintaining a smooth and efficient software development lifecycle.

Key Responsibilities:

• Fullstack Development: Design, develop, and maintain web applications using JavaScript (Node.js for back-end and React.js with Typescript for front-end).
• Cloud Infrastructure: Leverage Google Cloud services (like Compute Engine, Cloud Storage, Pub/Sub, etc.) to build scalable and resilient cloud solutions.
• API Development: Implement RESTful APIs and microservices with Koa.js, ensuring high performance, security, and scalability.
• Database Management: Manage MongoDB databases for storing and retrieving application data, and use Redis for caching and session management.
• Logging and Monitoring: Utilize Bunyan for structured logging and OpenTelemetry for distributed tracing and monitoring to ensure system health and performance.
• CI/CD: Design, implement, and maintain efficient CI/CD pipelines for continuous integration and deployment, ensuring fast and reliable code delivery.
• Testing & Quality Assurance: Write unit and integration tests using Jest, Mocha, and React Testing Library to ensure code reliability and maintainability.
• Collaboration: Work closely with front-end and back-end engineers to deliver high-quality software solutions, following agile development practices.
• Optimization & Scaling: Identify performance bottlenecks, troubleshoot production issues, and scale the system as needed.
• Code Reviews & Mentorship: Conduct peer code reviews, share best practices, and mentor junior developers to improve team efficiency and code quality.

Must-Have Skills:

• Google Cloud (GCP): Hands-on experience with various Google Cloud services (Compute Engine, Cloud Storage, Pub/Sub, Firestore, etc.) for building scalable applications.
• React.js: Strong experience in building modern, responsive user interfaces with React.js and Typescript
• Koa.js: Strong experience in building web servers and APIs with Koa.js.
• MongoDB & Redis: Proficiency in working with MongoDB (NoSQL databases) and Redis for caching and session management.
• Bunyan: Experience using Bunyan for structured logging and tracking application events.
• OpenTelemetry Ecosystem: Hands-on experience with the OpenTelemetry ecosystem for monitoring and distributed tracing.
• CI/CD: Proficient in setting up CI/CD pipelines using tools like CircleCI, Jenkins, or GitLab CI.
• Testing Frameworks: Solid understanding and experience with Jest, Mocha, and React Testing Library for testing both back-end and front-end applications.
• JavaScript & Node.js: Strong proficiency in JavaScript (ES6+), and experience working with Node.js for back-end services.

Desired Skills & Experience:

• Experience with other cloud platforms (AWS, Azure).
• Familiarity with containerization and orchestration tools like Docker and Kubernetes.
• Experience working with TypeScript.
• Knowledge of other logging and monitoring tools.
• Familiarity with agile methodologies and project management tools (JIRA, Trello, etc.).

Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5-10 years of hands-on experience as a Fullstack Developer.
• Strong problem-solving skills and ability to debug complex systems.
• Excellent communication skills and ability to work in a team-oriented, collaborative environment.

The Full-Stack Engineer role involves working across prosuct development stack, including various backend systems, frontend systems as well as quick prototyping of proof-of-concept features and projects.

Responsibilities:

• Architecting Figuring out all levels of designing and structuring systems, deciding on optimal levels of abstraction and future-proofing, patterns of orchestration of components and finally planning its execution.
• Implementation Should be able to structure and write code like prose for others to read, design and adhere to common principles and patterns that make everyone better at their jobs. Should have the ability to contribute according to timelines and type of projects - from working POCs to stable production code and the ability to work with a large breadth of knowledge.
• Orchestration and integration Interact with the larger engineering team for integrating your work into the ecosystem, help others in building over the base that you provide, help in orchestrating your work into CI/CD, testing, QA and automation pipelines.
• Mentorship We all love to learn and grow as engineers and human beings and we believe in synchronous growth as a team fueled by each and every individual's personal abilities, specializations, and interests.
• To enable this you'll be required to mentor others by sharing your expertise in various forms and be subject to be mentored by others and thus maintain a continuous learning culture.
• Ownership End-to-end ownership of services and specialised components required for various projects - starting from prototypal stage to production-hardened. These may include anything from document parsing to solving problems using deep learning.
• Documentation Create advanced technical content including articles, samples, whitepapers, and training.

Thoughtworks is a global software consultancy with an aim to create a positive impact on the world through technology. Our community of technologists thinks disruptively to deliver pragmatic solutions for our clients' most complex challenges. We are curious minds who come together as collaborative and inclusive teams to push boundaries, free to be ourselves and make our mark in tech.

Our developers have been contributing code to major organizations and open source projects for over 25 years. They’ve also been writing books, speaking at conferences and helping push software development forward, changing companies and even industries along the way. We passionately believe that software quality is driven by open communication, review and collaboration. That’s why we’re such vehement supporters of open source and have made significant contributions to open source tools for testing, continuous delivery (GoCD), continuous integration (CruiseControl), machine learning and healthcare. 

As consultants, we https://www.thoughtworks.com/careers/hub/consultant-life">work with our clients to ensure we’re evolving their technology and empowering adaptive mindsets to meet their business goals. You could influence the digital strategy of a retail giant, build a bold new mobile application for a bank or redesign platforms using event sourcing and intelligent data pipelines. You will use the latest Lean and Agile thinking, create pragmatic solutions to solve mission-critical problems and challenge yourself every day.

For a team to thrive, it needs active collaboration and room for healthy, respectful debate. Senior Developers are the technologists who cultivate this environment while driving teams toward delivering on an ambitious tech vision and acting as mentors for more junior-level consultants. You will leverage deep technical knowledge to solve more complex business problems and actively assess your team’s health, code quality and nonfunctional pipelines. 

You’ll spend time on the following:

• You will use continuous delivery practices to deliver high-quality software as well as value to end customers as early as possible.
• You will work in collaborative, value-driven teams to build innovative customer experiences for our clients
• Create large-scale distributed systems out of microservices
• You will apply the latest technology thinking from ourhttps://www.thoughtworks.com/radar"> tech radar to solve client problems
• Efficiently utilize DevOps tools and practices to build and deploy software
• You will lead or take part in the entire cycle of software consulting and delivery from ideation to deployment and everything in between
• You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills 

Here’s what we’re looking for:

• 4-8 years of experience with two or more development languages such as Java/C#/Python/Go/Node.js etc
• You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming
• Presence in the external tech community: you proactively share your expertise with others via speaking engagements, contributions to open source, blogs and more
• Comfortability with Agile methods, such as Extreme Programming (XP), Scrum and/or Kanban
• You enjoy influencing others and always advocate for technical excellence while being open to change when needed 
• You’re willing and able to commit to travel to client sites in order to solve their business problems
• You’re resilient in ambiguous situations and can approach challenges from multiple perspectives
• Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker

Job Description

We are looking for an ASP.NET MVC developer that will be able to develop and support existing applications. The main scope of work will include everything from back-end to client-side code, using optimal and efficient technologies, frameworks, and patterns. Your primary responsibilities will be to design and develop these applications. Therefore, it’s essential that you are skilled at problem solving, solution design, and high-quality coding.

Responsibilities

• Delivering a high-quality application
• Integrating with front-end developers
• Ensuring a required level of performance

• Writing test-backed server-side code
• Analyzing requirements and designing new functionality
• Supporting and fixing existing functionality
• Selecting and using the most appropriate and efficient technologies for a particular application
• Designing and building application layers

Skills

• Proficiency in C# | Visual Basic
• Experience using .NET 5+ | Core
• Experience in developing NET MVC | ASP.NET Core MVC applications
• Senior knowledge of ( Entity Framework 6.* | EF Core | NHibernate | ADO.NET )
• Proficient knowledge in MSSQL | MySQL | Oracle | other RDBMS
• Database design including indexes and data integrity 
• Dependency injection pattern and IoC containers using at least one of: Autofac, Unity, Ninject, and/or SimpleIoc
• Writing tests with  NUnit | XUnit | MSTest
• Implementing enterprise application patterns 
• Understanding of HTML, JS, and CSS
• Familiarity with the client side framework  jQuery | Angular 1.* | Angular 2.*+ | React |
• Familiarity with  Kendo UI | DevExpress | Syncfusion
• Integrating web analytics tools 
• Familiarity with Azure Web Apps | AWS Cloud