Sr. Backend Software Engineer

Review Criteria

• Strong Senior Backend Engineer profiles
• Must have 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems
• Must have strong backend development experience using one or more frameworks (FastAPI / Django (Python), Spring (Java), Express (Node.js).
• Must have deep understanding of relevant libraries, tools, and best practices within the chosen backend framework
• Must have strong experience with databases, including SQL and NoSQL, along with efficient data modeling and performance optimization
• Must have experience designing, building, and maintaining APIs, services, and backend systems, including system design and clean code practices
• Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
• (Company) – Must have worked in product companies / startups, preferably Series A to Series D
• (Education) – Candidates from top engineering institutes (IITs, BITS, or equivalent Tier-1 colleges) are preferred

Role & Responsibilities

As a Founding Engineer at company, you'll join our 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 perfect for someone who thrives in a dynamic startup environment where requirements evolve quickly and problems need 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 company’s billing automation and revenue recognition capabilities
• Work across the full stack: Contribute to both backend services and frontend interfaces, ensuring seamless user experiences
• Implement critical integrations: Connect company with external systems including CRMs, data warehouses, ERPs, and payment processors
• Optimize for scale: Build systems that handle complex pricing models, high-volume usage data, and real-time financial calculations
• Drive quality and best practices: Write clean, maintainable code while participating in code reviews and architectural discussions
• Solve complex problems: Debug issues across the stack and work closely with teams to address evolving client needs

The Impact You'll Make-

• Power business growth: Your code will directly enable billing and revenue operations for fast-growing B2B companies, helping them scale without operational bottlenecks
• Build critical financial infrastructure: Contribute to systems handling millions in transactions while ensuring accurate, compliant revenue recognition
• Shape product direction: Join during our scaling phase where your contributions immediately impact product evolution and customer success
• Accelerate your expertise: Gain deep knowledge in financial systems, B2B SaaS operations, and enterprise software while working with industry veterans
• Drive the future of B2B commerce: Help create infrastructure powering next-generation pricing models from usage-based to value-based billing.

CTC: up to 40 LPA

Mandatory Criteria (Can't be neglected during screening) :

Need candidates from Growing startups or Product based companies only

1. 4–6 years experience in backend engineering

2. Minimum 2+ years hands-on experience with:

• TypeScript
• Express.js / Nest.js

3. Strong experience with MongoDB (or MySQL / PostgreSQL / DynamoDB)

4. Strong understanding of system design & scalable architecture

5. Hands-on experience in:

• Event-driven architecture / Domain-driven design
• MVC / Microservices

6. Strong in automated testing (especially integration tests)

7. Experience with CI/CD pipelines (GitHub Actions or similar)

8. Experience managing production systems

9. Solid understanding of performance, reliability, observability

10. Cloud experience (AWS preferred; GCP/Azure acceptable)

11. Strong coding standards — Clean Code, code reviews, refactoring

If interested kindly share your updated resume at 82008 31681

• 2+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

Node JS Developer

Position Type: Full time

Job Description:     

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Primary focus will be the development of all server-side logic, definition and maintenance of the databases, and ensuring high performance and responsiveness to requests from the front-end. Will also be responsible for integrating the front-end elements built by the UI team into the application. Therefore, a basic understanding of front-end technologies is a bonus.

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

Skills and Qualifications:

• Strong proficiency with JavaScript
• Knowledge of Node.js and frameworks available for it such as Express
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Basic understanding of front-end technologies, such as HTML5, and CSS3
• Understanding 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 of Relational Databases
• 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
• 8-15 years relevant progressive experience.

Node JS Developer

Job Description:

• Node JS Developer

  Job Description:

   

  • 1 year development experience in NodeJs(v4 and above)
  • Knowledge in Unit testing frameworks like Mocha
  • Experience in working with any NodeJs web framework(Express or Hapi)
  • Development experience using any persistent store (NoSql or Relational)

   

  • Formal Deliverables
  • Design and development of new and enhance existing applications using Node.JS
  • Collaborate with internal and external team members to ensure projects get delivered as planned
  • Develop Backend services using HapiJs
  • Develop background workers based on cron or rabbitmq messages
  • Support existing and new features via bug fixes, prod support or monitoring scripts
  Unit testing for all the developed modules1 year development experience in NodeJs(v4 and above)

• Knowledge in Unit testing frameworks like Mocha
• Experience in working with any NodeJs web framework(Express or Hapi)
• Development experience using any persistent store (NoSql or Relational)

• Formal Deliverables
• Design and development of new and enhance existing applications using Node.JS
• Collaborate with internal and external team members to ensure projects get delivered as planned
• Develop Backend services using HapiJs
• Develop background workers based on cron or rabbitmq messages
• Support existing and new features via bug fixes, prod support or monitoring scripts

Your Opportunity

You will primarily be responsible for implementing features & building platforms to enable on-device and device/server-side combined ML workflows. You will possess strong skills in object-oriented software design and programming. You are excited about developing new features, maintaining existing code, fixing bugs, and contributing to overall system design.

Your Impact

To design, architect, develop and maintain the backend for AI products by working closely with the Engineering Team. To ensure successful consumption of Saarthi.ai technology by APIs, SDKs, or Applications, thereby enabling productization and monetization of the AI solutions.

What You’ll Do

· Work with development teams and product managers to ideate software solutions

· Design server-side architecture

· Along with SAAS application deliverables even the client-side deliverables need to be taken care

· Develop and manage well-functioning databases and applications

· Write effective APIs

· Test software to ensure responsiveness and efficiency

· Troubleshoot, debug and upgrade software

· Create security and data protection settings

· Build features and applications with a mobile responsive design

· Write technical documentation

· Work with data scientists and analysts to improve software

What You Bring

· Proven experience as a Back-End Developer or similar role.

· Experience developing desktop applications.

· Strong working experience with back-end development using Node.JS, JavaScript.

· Strong knowledge of databases (MongoDB, PostgreSQL).

· Experience with System Design and Architecture.

· Familiarity with common stacks.

· Familiarity with Parallel Threading, Concurrent calling and Aggregation Queries.

· Ability to write quality unit tests

· Setting up CI/CD, and integrating with logging and monitoring systems for the products or platforms

· Excellent communication and teamwork skills.

· Degree in Computer Science, Statistics or relevant field

Company: Runo – https://runo.in

Location: Hyderabad, India

Who We Are:

Runo is a product based funded company incubated at T-Hub (IIITH Campus) and currently operating from Cyber Towers, HiTec City. We offer Call Management CRM for sales teams across the world. We are currently scaling up the engineering team to support the continued growth of the user acquisition in the global market, after a steady success in the Indian market.

The Role:

Runo is looking for a Lead Backend Developer to join our team. The lead backend developer is responsible for scaling up the existing architecture to handle billions of requests every month (We are currently at a scale of 100 million requests per month). You will be contributing in architecting the database/reporting layer to support complex queries and data exports of millions of records. You will be a lead developer responsible for development of new software products and enhancements to existing products.

Our Ideal candidate:

• Proficiency in NodeJS.
• Expert knowledge of NoSQL Databases (MongoDB is preferred)
• Hands on experience of working on products handling more than a million requests per month
• 4-8 years of relevant professional work experience 
• Self-motivated, able to work independently. Commitment to high quality.

Responsibilities:

• Contribute to the product architecture in handling millions of requests per day.
• Optimizing the architecture for regional data zones.
• Develop high performance, reusable & bug free APIs
• Optimize the existing APIs for performance (by data denormalization/ decoupling the long running APIs using queues)
• Get familiar with the AWS Services like API Gateway, Lambdas, SNS, SQS, SES

What We Offer: 

• Competitive Salary
• ESOPs
• Medical Insurance

NodeJS Developer:

We at Fabzen Technologies are looking for a knowledgeable and experienced individual to fulfil the role of Node.js developer.

Requirements:

• Bachelor’s degree in Computer Science, Software Engineering or related field.
• Professional experience on a software development team as a Node.js developer.
• Strong software documentation skills.
• Ability to comprehend and implement detailed project specifications as well as the ability to adapt to various technologies.
• Strong problem-solving skills.
• Understanding of Software Development Life Cycle.
• High attention to detail.
• Excellent troubleshooting and communication skills.
• Able to work well in a team setting.

The candidate must be proficient at:

• Socket programming
• Async await and promises
• Databases such as mongo, MySQL
• Passport JS for Google and Facebook integration
• Working on APIs with authentication and authorization

Responsibilities:

• Work closely with the development team to deliver code as required for the applications and their updates.
• Ensure the design and development of the application fulfil our requirements and achieve desired objectives.
• Ensure company standards are followed; Project schedules and issues are effectively managed, and the same is effectively communicated.
• Ensure documentation, knowledge sharing, and training in new software.
• Create technical specifications and test plans.
• Monitor the functioning of the application and provide suggestions and support to maintain the same.

Experience in a game development company or in developing gaming applications would be an added advantage.