Principal Fullstack Developer

Job Title : Full Stack Engineer (Python + React.js/Next.js)

Experience : 1 to 6+ Years

Location : Bengaluru (Indiranagar)

Employment : Full-Time

Working Days : 5 Days WFO

Notice Period : Immediate to 30 Days

Role Overview :

We are seeking Full Stack Engineers to build scalable, high-performance fintech products.

You will work on both frontend (Typescript/Next.js) and backend (Python/FastAPI/Django), owning features end-to-end and contributing to architecture, performance, and product innovation.

Main Tech Stack :

Frontend : Typescript, Next.js, React

Backend : Python, FastAPI, Django

Database : PostgreSQL, MongoDB, Redis

Cloud : AWS/GCP, Docker, Kubernetes

Tools : Git, GitHub, CI/CD, Elasticsearch

Key Responsibilities :

• Develop full-stack applications with clean, scalable code.
• Build fast, responsive UIs using Typescript, Next.js, React.
• Develop backend APIs using Python, FastAPI, Django.
• Collaborate with product/design to implement solutions.
• Own development lifecycle: design → build → deploy → monitor.
• Ensure performance, reliability, and security.

Requirements :

Must-Have :

• 1–6+ years of full-stack experience.
• Product-based company background.
• Strong DSA + problem-solving skills.
• Proficiency in either frontend or backend with familiarity in both.
• Hands-on experience with APIs, microservices, Git, CI/CD, cloud.
• Strong communication & ownership mindset.

Good-to-Have :

• Experience with containers, system design, observability tools.

Interview Process :

1. Coding Round : DSA + problem solving
2. System Design : LLD + HLD, scalability, microservices
3. CTO Round : Technical deep dive + cultural fit

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.

Job Description

Technical lead who will be responsible for development, managing team(s), monitoring the tasks / sprint. They will also work with BA Persons to gather the new requirements and change request. They will help solve application issues and helping developers when they are stuck.

Responsibilities

·       Design and develop application based on the architecture provided by the solution architects.

·       Help team members and co developers to achieve their tasks.

·       Maintain / monitor the new work items and support issues and have to assign it to the respective developers.

·       Communicate with BA persons and Solution architects for the new requirements and change requests.

·       Resolve any support tickets with the help of your team within service timelines.

·       Manage sprint to achieve the targets.

Technical Skills

·       Microsoft .NET MVC

·       .NET Core 3.1 or greater

·       C#

·       Web API

·       Async Programming, Threading, and tasks

·       Test Driven Development 

·       Strong expert in SQL (Table Design, Programing, Optimization)

·       Azure Functions

·       Azure Storage

·       MongoDB, NoSQL

Qualifications/Skills Desired:

·       Any Bachelor’s degree relevant to Computer Science. MBA or equivalent is a plus

·       Minimum of 8-10 years IT experience and managing a team(s) out of which 4-5 years should be as a technical/team lead.

·       Strong verbal and written communication skills with the ability to adapt to many different personalities and conflict resolution skills required

·       Must have excellent organizational and time management skills with strong attention to detail

·       Confidentiality with privacy-sensitive customer and employee documents

·       Strong work ethic - demonstrate good attitude and judgment, discretion, and maintain high level of confidentiality

·       Previous experience of customer interactions

• Experience of min 7-10 years in Technology

• Master’s Degree / relevant certification

• Enable the team to design solutions with a sustainable architecture in mind, collaborating in building a clear and shared understanding/vision of it within the team.
• Actively support team wellness through building an environment of trust, openness and safe experimentation.
• Train and Mentor the team in the correct understanding of technical practices, enabling the team to identify how to get most value out of them within the context of the project.
• Comply with development and corporate processes and standard practices.
• Status reporting.
• Responsible for defining and setting baselines.
• Plan, schedule, execute, report and control the strategy to move releases to staging and live environments, ensuring the integrity of the live environment is protected and that the correct components are released.
• Take care of team logistics in terms of anticipating development environment needs and engaging whoever needed to make them timely available for the team.

• Expert knowledge of key Web technologies as HTML5, CSS3, 
• Expect in JavaScript / AJAX, NodeJS, React.
• Expert knowledge of OO Analysis and Design, 
• Expert on Design Patterns and Frameworks as NodeJS, React.
• Knowledge of Agile methodologies (Scrum).

• Candidate must possess good communication skills.
• Creative bent of mind
• Self-motivation to work independently and strong work ethic.
• Ability to work in a team, and adapt to new and evolving processes.
• Flexibility with shifts & week offs is a must.
• Team management 
• Capacity to understand and develop a business Vision
• Flexibility and adaptable
• Goal-Oriented
• Experience leading and managing a team
• Mentoring a team
• Deep experience with Agile
• Passion around technology
• Creative
• Player- coach mentality
• Strong communication skills

Technical Skills : Node.js, Restful, Express, React.js, Redux, MongoDb

• Previous working experience as a MEAN/MERN Stack Developer for at least 2 years.
• In depth knowledge of React.js, Angular.js, NodeJS, ExpressJS.
• Experience implementing applications using React.js and Angular.js.
• Experience creating front end applications using HTML, React and Angular.
• Hands on experience with JavaScript Development on both client and server-side

Preferred Qualifications & Desired Competencies:

• Can-do attitude and bring a go-getter
• Ability to learn new technologies quickly.
• Self-motivated, results-driven individual and passionate about work.
• Excellent communication skills and problem solving skills

Qualifications for Ruby

Time Zone EST Overlap of 3-4 hours/day

• Proficient in Ruby, and one of the Javascript UI frameworks like React, Ember, Angular, etc.
• Experience working with MySQL, BigQuery, and Snowflake.
• Experience in UI frameworks like React, Ember, Angular, etc.
• Experience building and deploying applications in an Amazon Web Services (AWS) ecosystem. 
• 5+ years of software engineering experience developing scalable production software incorporating testing, evaluation, and monitoring.
• Full-stack development experience
• Strong knowledge of CS fundamentals and code organization best practices
• Bachelor's degree in Computer Science or equivalent practical experience.
• Built systems that make use of complex job queues and offline processing
• Experience with Docker/ECS/AWS
• Experience with testing and writing test cases
• Experience with Jest, Enzyme, and RSpec