Node.JS | Sr. Developer

Role & Responsibilities

As a Founding Engineer, you'll join the engineering team during an exciting growth phase, contributing to a platform that handles complex financial operations for B2B companies. You'll work on building scalable systems that automate billing, usage metering, revenue recognition, and financial reporting—directly impacting how businesses manage their revenue operations.

This role is ideal for someone who thrives in a dynamic startup environment where requirements evolve quickly and problems require creative solutions. You'll work on diverse technical challenges, from API development to external integrations, while collaborating with senior engineers, product managers, and customer success teams.

Key Responsibilities

• Build core platform features: Develop robust APIs, services, and integrations that power billing automation and revenue recognition capabilities.
• Work across the full stack: Contribute to backend services and frontend interfaces to ensure seamless user experiences.
• Implement critical integrations: Connect the platform with external systems including CRMs, data warehouses, ERPs, and payment processors.
• Optimize for scale: Design systems that handle complex pricing models, high-volume usage data, and real-time financial calculations.
• Drive quality and best practices: Write clean, maintainable code and participate in code reviews and architectural discussions.
• Solve complex problems: Debug issues across the stack and collaborate with cross-functional teams to address evolving client needs.

The Impact You'll Make

• Power business growth: Enable fast-growing B2B companies to scale billing and revenue operations efficiently.
• Build critical financial infrastructure: Contribute to systems handling high-value transactions with accuracy and compliance.
• Shape product direction: Join during a scaling phase where your contributions directly impact product evolution and customer success.
• Accelerate your expertise: Gain deep exposure to financial systems, B2B SaaS operations, and enterprise-grade software development.
• Drive the future of B2B commerce: Help build infrastructure supporting next-generation pricing models, from usage-based to value-based billing.

Ideal Candidate Profile

Experience

• 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems.
• Strong backend development experience using one or more frameworks: FastAPI / Django (Python), Spring (Java), or Express (Node.js).
• Deep understanding of relevant libraries, tools, and best practices within the chosen backend framework.
• Strong experience with databases (SQL & NoSQL), including efficient data modeling and performance optimization.
• Proven experience designing, building, and maintaining APIs, services, and backend systems with solid system design and clean code practices.

Domain

• Experience with financial systems, billing platforms, or fintech applications is highly preferred.

Company Background

• Experience working in product companies or startups (preferably Series A to Series D).

Education

• Candidates from Tier 1 engineering institutes (IITs, BITS, etc.) are highly preferred.

We are seeking a highly skilled and experienced Python Developer with a strong background in fintech to join our dynamic team. The ideal candidate will have at least 7+ years of professional experience in Python development, with a proven track record of delivering high-quality software solutions in the fintech industry.

Responsibilities:

Design, build, and maintain RESTful APIs using Django and Django Rest Framework.

Integrate AI/ML models into existing applications to enhance functionality and provide data-driven insights.

Collaborate with cross-functional teams, including product managers, designers, and other developers, to define and implement new features and functionalities.

Manage deployment processes, ensuring smooth and efficient delivery of applications.

Implement and maintain payment gateway solutions to facilitate secure transactions.

Conduct code reviews, provide constructive feedback, and mentor junior members of the development team.

Stay up-to-date with emerging technologies and industry trends, and evaluate their potential impact on our products and services.

Maintain clear and comprehensive documentation for all development processes and integrations.

Requirements:

Proficiency in Python and Django/Django Rest Framework.

Experience with REST API development and integration.

Knowledge of AI/ML concepts and practical experience integrating AI/ML models.

Hands-on experience with deployment tools and processes.

Familiarity with payment gateway integration and management.

Strong understanding of database systems (SQL, PostgreSQL, MySQL).

Experience with version control systems (Git).

Strong problem-solving skills and attention to detail.

Excellent communication and teamwork skills.

Job Types: Full-time, Permanent

Work Location: In person

Knowledge on Blockchain development is added advantage.
Previous Experience in .Net or PHP is a Plus

Experience : 1.5 to 4 years

Location : Mumbai / work from home for other Locations

Immediate joiner
*Candidate has knowledge of typescript will be most preferrable.*

LearnApp's engineers are a small group of people who directly impact the daily lives of thousands of learners across the globe. 
As a software engineer, you are the architect, designer and coder and maintainer of your project. 
In addition, you work closely with the product team to make vision become reality. 
You are dynamic and able to work well both independently and as part of a team.

At LearnApp, we leave all egos at the door and concentrate on the job at hand. 
We value passionate, down to earth, “can do” people who enjoy fine-tuning small details, without losing sight of the big picture. 
We are looking for the type of person who feels uncomfortable when a day goes by without achieving something impactful. 
Someone who is driven to get things done and views obstacles as an exciting challenge that demands a creative solution. 
Above all else, this role requires someone who takes great pride in their work and is inspired and motivated by their role in improving the way thousands of learners receive financial literacy.

As a Backend Software Engineer, you’ll work closely with our engineers to ensure system consistency and improve user experience.

Responsibilities

- Analyze functional requirements and creation of software design
- Design and implement scalable and robust applications
- Design, develop, test, deploy, maintain, and improve software
- Design, shape and implement authentication, authorization, auditing, reporting, and API infrastructure solutions

Qualifications

- Bachelor's degree in Computer Science, a related technical field of study, or equivalent practical experience
- Experience in Object-Oriented Design and programming concepts
- A minimum of 3 years of working experience in a product oriented company
- Programming experience in NodeJS and Typescript or Javascript

Preferred Qualifications

- Experience in building cloud (SaaS) applications, particularly using AWS technologies
- Experience in building serverless applications
- Knowledge of Agile software development methodologies
- Ability to learn other coding languages as needed
- Object-oriented, database design, and SQL skills

Perks

Roles & Responsibilities:

• Design and Build API/Micro services using Spring boot.
• Experience in Spring Reactive programming.
• Exposure to docker and containerization
• Developing enterprise grade highly scalable java-based application
• Writing test cases using Java testing framework like JUnit, Mockito.
• Proficient understanding of code version tools, such as Git, SVN
• Displaying initiative and an ability to lead others, and develop applications team disciplined manner
• Participating in application solutions including assisting with planning and architectural design, development, resolution of technical issues, and application rationalization.
• Utilizing and applying robust analytic thinking with the ability to identify, debug, and resolve technical issues.
• Achieving significant contributions within a small team of developers to lead teams and deliver solutions within an Agile methodology, whilst ensuring quality, timeliness and team-wide adherence to good architectural practice and guidelines.
• Good Experience in Application Software Design and Development, Object Oriented Analysis and Design (OOAD), Software Testing and Debugging.
• Conduct peer code reviews

JOB SUMMARY

     THE ROLE IN SUMMARY

Omnicom Media Group (OMG) has an immediate opening for a highly motivated and talented backend web application developer, specializing in AWS cloud technologies. In this position you will be joining an in-house development team whose primary responsibility is developing new features and functionality for multiple existing web applications and day to day troubleshooting and issue resolution. The ideal candidate will possess excellent critical thinking and troubleshooting skills and have proven experience using popular AWS services commonly used to build serverless web application architectures. Candidates are expected to have strong knowledge of AWS API Gateway, Lambda, DynamoDB and Python programming. Familiarity with Cloud infrastructure as code frameworks, such as Serverless Framework, Terraform or CloudFormation, etc. is also required. Excellent English communication skills are a must as you will be a part of a team working alongside our primary development team in addition to several business analysis and project managers. 5+ years of prior backend and Cloud web application and software development experience required.

KEY WORKING PRINCIPLES

• Passionate about modern web application architecture and programming. Hands on backend developer.
• Prior experience with modern RESTful API design and implementation. Microservices and single page web applications.
• Strong AWS knowledge, specifically serverless technologies (S3, API Gateway, Lambda, IAM, DynamoDB) as they relate to web application development.
• Excellent knowledge of web application security fundamentals (identity management, authentication, authorization, SSO).
• Designed several application databases in SQL and at least one non-relational database system, preferably
• Familiarity with DevOps practices including continuous integration and deployment, infrastructure as code in preferably Serverless Framework.
• Excellent verbal and written communication skills.
• 5+ years professional software development experience.
• Bachler’s degree in computer science or related field.

MUST HAVE SKILLS

• Backend Web Application Development
• Python
• AWS Services Including, CloudFront, S3, API Gateway, Lambda, Step Functions, SES, DynamoDB, Serverless Framework
• AWS Identity and Access Management principles (IAM)
• SQL (MS SQL Server, PostgreSQL, AWS Aurora or comparable)
• GIT, JIRA, Agile / Scrum

NICE TO HAVE SKILLS

• AWS Cognito