Mobile App Developer

We are looking for a skilled Backend Developer with strong experience in building, scaling, and optimizing server-side systems. The ideal candidate is proficient in Node.js, FastAPI (Python), and database design, with hands-on experience in cloud infrastructure on AWS or GCP.

Responsibilities:

Design, develop, and maintain scalable backend services and APIs using Node.js and FastAPI

Build robust data models and optimize performance for SQL and NoSQL databases

Architect and deploy backend services on GCP/AWS, leveraging managed cloud services. 

Implement clean, modular, and testable code with proper CI/CD and observability (logs, metrics, alerts)

Ensure system reliability, security, and high availability for production environments

Requirements:

2–5 years of backend development experience

Strong proficiency in Node.js, FastAPI, REST APIs, and microservice architecture

Solid understanding of PostgreSQL/MySQL, MongoDB/Redis or similar NoSQL systems

Hands-on experience with AWS or GCP, Docker, and modern DevOps workflows

Experience with caching, queueing, authentication, and API performance optimization

Good to Have:

Experience with event-driven architecture, WebSockets, or serverless functions

Familiarity with Kubernetes or Terraform

Job Location: Gurugram, Haryana, India

Industry: Artificial Intelligence

Senior Software Engineer (Backend) – Credit Cards Platform

Experience required - 5+ years

Job Location - Hyderabad & Ahmedabad

What you'll do:

· Perform complex application programming activities with an emphasis on mobile development: Node.js, TypeScript, JavaScript, RESTful APIs and related backend frameworks

· Assist in the definition of system architecture and detailed solution design that are scalable and extensible

· Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible

· Own the quality of code and do your own testing. Write unit test and improve test coverage.

· Deliver amazing solutions to production that knock everyone’s socks off

· Mentor junior developers on the team

What we’re looking for:

· Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.

· A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.

· A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.

· Flexible and willing to accept change in priorities, as necessary

· Demonstrable passion for technology (e.g., personal projects, open-source involvement)

· Enthusiastic embrace of DevOps culture and collaborative software engineering

· Ability and desire to work in a dynamic, fast paced, and agile team environment

· Enthusiasm for cloud computing platforms such as AWS or Azure

· Excellent written and verbal communications skills

Preferred Qualifications:

· Experience with Apache Cordova framework

· Demonstrable knowledge of native coding background in iOS, Android

· Experience developing and deploying applications within Kubernetes based containers

· Experience in Agile and SCRUM development techniques

BE / B-Tech degree and 2+ years of work experience, or ME / MS degree and 2+  years of work experience, in Computer Science.

• Strong programming skills in Python/Django
• Experience with Angular, JavaScript frameworks/libraries
• Hands on experience with MySQL, PostGreSQL or other RDBMS
• Experience with Web application security and Secure coding practices
• Strong Analytical thinking and problem solving ability
• Familiarity with software collaboration tools – GIT
• Ability to work with a distributed and diverse team of researchers and developers.
• Excellent English language communication skills, both written and verbal.
• High level of innovation and motivation

• Work closely with design, product management, and front-end teams to create REST APIs using NestJS
• Write reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Work on the implementation of security and data protection
• Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively

• 1+ years of experience in NodeJS-based frameworks like NestJS, and microservices-based architecture is a bonus.
• Understanding of OOPS concepts, persistence, threading, queuing, and caching.
• Thorough knowledge of designing, implementing and scaling relational and document-based databases
• A love for systems and an ability to think through and plan for their life cycles, edge cases, interactions, and failure modes
• First principles thinking, Excellent problem-solving ability
• A good all-rounder with a can-do, startup mentality

• Experience with ReactJS
• Cloud deployment and scaling experience

Responsibilities:

- Integration of user-facing elements developed by front-end developers with server-side logic.

- Writing reusable, testable, and efficient code.

- Design and implementation of low-latency, high-availability, and performant applications.

- Implementation of security and data protection.

- Integration of data storage solutions {mysql, redis}.

- Understanding the requirements and planning the implementation accordingly.

- Good interaction with the team. Good debugging skills.

Skills:

- Strong proficiency with JavaScript {optimized code}.

- Knowledge of Node.js and frameworks available for it {sequelize}.

- Understanding the nature of asynchronous programming and its quirks and workarounds.

- Optimization in terms of memory and time.

- Good understanding of server-side templating languages.

- Basic understanding of front-end technologies, such as HTML5, and CSS3.

- Understanding accessibility and security compliance.

- User authentication and authorization between multiple systems, servers, and environments.

- Integration of multiple data sources and databases into one system.

- Understanding fundamental design principles behind a scalable application.

- Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.

- Creating database schemas that represent and support business processes.

- Implementing automated testing platforms and unit tests.

- Proficient understanding of code versioning tools, such as Git.

1. Interfacing with the customer, tech team members, project managers and other relevant product people for a thorough understanding of the product, use case and business objective, detailed specification and data flow for the requirement, demonstration of the solution and clarification of queries at appropriate times during the life-cycle of the product
2. Preparing test cases, setting up CI/CD and integration with logging and monitoring systems for the products or platforms by the end of 6 months
3. Seeking customer feedback to continuously optimize the product for great customer experience and high technical performance in areas such as hardware efficiency, latency and throughput
4. Delivering a robust backend platform for the products and platforms by incorporating important considerations regarding minimal downtime, high availability, data redundancy, tight security, etc. into the design

Analytical and Problem Solving Skills

• Has high grasping power. Able to quickly and proficiently understand and absorb qualitative or quantitative data and draw insightful conclusions from it. Exhibits a probing mind and achieves penetrating insights. Attention to detail. Does not let important details slip through the cracks and derail a project. Generates new and innovative approaches to problems.

Efficiency and Execution

• Able to produce significant output with minimal wasted effort in a timely manner. Focuses on key priorities.

Hard Work and Persistence

• Possesses a strong willingness to work hard and sometimes long hours to get the job done.
• Demonstrates determination and willingness to go the distance to get something done.

Flexibility and Adaptability

• Adjusts quickly to changing priorities and conditions. Copes effectively with complexity and change. Demonstrates ability to learn new things.

Calm under Pressure

• Maintains stable performance when under heavy pressure or stress.

Team Player

• Reaches out to peers and cooperates with supervisors to establish an overall collaborative working relationship. Works proactively without always being told what to do.