Founding Senior Backend Engineer (Node.js, AI-Native)

Job Description:

We are seeking an experienced developer to design and build cross-platform mobile applications integrated with enterprise backend systems. The role involves working on both mobile (Android & iOS) using Kotlin Multiplatform and backend services using Java / Spring Boot.

Key Responsibilities:

• Develop mobile applications for Android and iOS using Kotlin Multiplatform (KMP)
• Design and implement reusable shared modules across platforms
• Develop and maintain backend services using Java / Spring Boot
• Build and consume REST APIs
• Integrate authentication and security mechanisms
• Perform testing, debugging, and performance optimization

Location: Bangalore

Experience: 2–5 years

Type: Full-time | On-site

Open Roles: 2

Start: Immediate

Why this role exists

Most systems work at a low scale.

Very few survive real production load, complex workflows, and enterprise edge cases.

We are building a platform that must:

• Scale from 500K → 20M+ interactions/month
• Handle complex insurance workflows reliably
• Become easier to deploy as it grows, not harder

This role exists to build the backend foundation that makes this possible.

What you’ll do

You will not just write services.

You will design and own core platform systems.

1. Scale the platform without breaking architecture

• Scale from 50K → 2M+ interactions/month
• Ensure:
• High availability
• Low latency
• Fault tolerance
• Avoid large rewrites — build systems that evolve cleanly

2. Build the workflow automation (WA) engine

• Design a flexible system with:
• States
• Stages
• Cohorts
• Dynamic workflows
• Ensure workflows:
• Handle edge cases reliably
• Can be configured easily
• Move from:
• Hardcoded flows → configurable execution engine

3. Build the insurance-specific data layer

• Design data models for:
• Policy states
• Claim workflows
• Consent tracking
• Ensure the system works across:
• Multiple insurers
• Multiple use cases
• Build a platform-first data layer, not use-case-specific hacks

4. Make deployment and setup simple

• Ensure workflows and data models are:
• Easy to configure
• Easy to launch
• Reduce friction for:
• Product teams
• Deployment teams

5. Create a compounding data advantage

• Build a data layer that:
• Improves with every deployment
• Captures structured signals
• Ensure data becomes a long-term edge, not just storage

6. Own production reliability

• Participate in on-call rotation across 3 engineers
• Ensure:
• Incidents are handled quickly
• Root causes are fixed permanently
• Build systems where reliability is shared, not individual

What success looks like

• Platform scales to 2M+ interactions/month smoothly
• Workflow engine supports complex, dynamic use cases
• Data layer enables fast deployment across accounts
• Edge cases are handled without constant firefighting
• System becomes easier to use as it grows
• Production issues are rare and predictable

Who you are

• You have 2-5 years of backend engineering experience
• You have built:
• Scalable systems
• Distributed services
• You think in:
• Systems
• Data models
• Trade-offs
• You are comfortable owning:
• Architecture
• Production systems

What will make you stand out

• Experience building:
• Workflow engines
• State machines
• Data-heavy platforms
• Strong understanding of:
• System design
• Distributed systems
• Failure handling
• Experience working in:
• High-scale production environments

Why join

• You will build the core backend of an AI platform
• Your work directly impacts:
• Scale
• Reliability
• Product capability
• You will design systems that move from:
• Use-case specific → platform-level infrastructure

What this role is not

• Not just API development
• Not limited to feature-level work
• Not disconnected from production realities

What this role is

• A system architect
• A builder of scalable platforms
• A driver of long-term technical advantage

One question to self-evaluate

Can you design backend systems that scale, handle edge cases, and become easier to use as they grow?

Context for the Candidates:

Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.

Key Discussion Points:

• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?

• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.

• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?

• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?

• Share best practices for gas optimization, contract upgradability, and backend scalability.

Evaluation Criteria:

1. Technical Knowledge:

• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.

• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).

• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.

2. Problem-Solving and Integration Skills:

• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.

• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.

3. Experience and Expertise:

• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.

• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.

4. Innovation and Critical Thinking:

• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.

• Discussion on the future potential of blockchain technology and how the tech stack can evolve.

5. Communication and Team Collaboration:

• Clear articulation of technical challenges and how to address them in a team setting.

• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.

We are looking for a skilled and experienced Node.js Developer with at least 4 years of professional experience to join our team. As a Node.js Developer, you will be responsible for developing robust and scalable web applications using JavaScript and various frameworks.

Roles and Responsibilities

• Production platform hands-on experience involving Node JS & REST API.

• Hands-on production platform experience working with micro-service back-end architecture.

• Working knowledge of GRPC, HTTPS, and GRAPHQ protocols.

• Well-versed in cloud deployment of code blocks.

• Experience with JS testing and code analysis frameworks such as Mocha.

• Utilize modern JavaScript frameworks such as Express.js and Sails.js to build efficient and scalable applications.

• Work with databases like MongoDB and PostgreSQL using Mongoose and Sequelize ORM.

• Integrate messaging systems like Kafka and RabbitMQ for reliable event-driven communication.

• Write unit tests using Mocha, Chai, and Jest frameworks to ensure code quality and reliability.

• Utilize AWS S3 bucket for secure and scalable storage of data and media files.

• Collaborate with QA engineers to perform thorough testing and bug fixes.

• Work with third-party APIs such as Postman, Twilio, SendGrid, Firebase, and KeyCloak for various integrations.

At nFerence Labs, the "Google of Biomedicine", we are building the world's first massive-scale platform for pharmaco-biomedical computing. Our platform is premised on using AI/Deep Learning (on clinical text, medical images, and other signals) and massive high-performance computing to help pharma companies perform faster and more efficient drug discovery, and also help early diagnosis of several key diseases.

We collaborate heavily with premier medical institutions such as the Mayo Clinic and build systems to get deep medical insights from patient information including patient notes and lab information, medical images, ECGs, etc. We are a well-funded company and are looking to grow on all fronts.

We are hiring an experienced backend staff engineer for our Pramana team. Our Digital Pathology-as-a-service venture, Pramana is an in-line quality assurance software suite which for the first time in the industry, provides confidence to the labs for the accuracy and applicability of their digital assets while supporting industry-standard image formats.

Pramana’s whole slide imaging system is built upon the strong hardware expertise of former Spectral Insights (that nference acquired in 2020) and the strong software expertise of nference. Modular systems with Robotic automation have allowed Pramana to reduce the reliance on several technical staff. This will significantly reduce the total costs of ownership and is a more transparent model for Pramana’s clients.

Must have

• 5+ years experience with solid backend/engineering experience in C++/ Python
• Knowledge of data structures and an eye for architecture.
• Solid CS fundamentals, fluent in multi-threaded and asynchronous programming, and a strong inclination for architecting at scale.
• Excellent technical design, problem-solving, debugging, and communication skills.
• Rapid prototyping worked on distributed systems at scale.
• Basic knowledge of SQL as well as NoSQL databases.
• Proficient in Golang/ Python, design, and concurrency patterns.

Good to have

• Proficient in writing unit tests and profiling and benchmarking golang applications
• Experience in maintaining protobuf contract
• Experience in working with GRPC and grace

Benefits:

• Be a part of the “Google of biomedicine” as recognized by the Washington Post
• Work with some of the brilliant minds of the world solving exciting real-world problems through Artificial Intelligence, Machine Learning, analytics and insights through triangulating unstructured and structured information from the biomedical literature as well as from large-scale molecular and real-world datasets.
• Our benefits package includes the best of what leading organizations provide, such as stock options, paid time off, healthcare insurance, gym/broadband reimbursement.

JOB DESCRIPTION 

DYT - Do Your Thng, is an app, where all social media users can share brands they love with their followers and earn money while doing so! We believe everyone is an influencer. Our aim is to democratise social media and allow people to be rewarded for the content they post. How does DYT help you? It accelerates your career through collaboration opportunities with top brands and gives you access to a community full of experts in the influencer space. 

RESPONSIBILITIES 

• Expert in Python with knowledge of Python best practices (PEP8) 
• Strong knowledge of python web frameworks such as Django, Flask • Strong knowledge of building RESTful APIs using Django Rest Framework • Good Understanding of Django ORM Libraries 
• Able to integrate multiple data sources and databases into one system • Strong experience on Linux 
• Solid database skills in a relational database (i.e. PostgresSQL,MYSql) • Able to create database schemas that represent and support business processes • Strong unit test and debugging skills 
• Proficient understanding of code versioning tools (git) 
• Experience deploying on AWS is desirable 
• Experience with Docker,Test Drive Development will be a plus 
• Excellent interpersonal, leadership, influence and communication skills • Experience in designing scalable micro-services is desirable 

QUALIFICATIONS 

• 0-1 years of experience as a backend developer 
• At least one product build and published 
• SKILLS Contribute in all phases of the development lifecycle 
• Write well designed, testable, efficient code 
• Work well under pressure and meet deadlines without sacrificing quality • Work with distributed development teams 

•  You should have deep understanding of NodeJS
•  You should be strong in Javascript and TypeScript
•  You should be capable of writing complex queries
•  ES6, Express, Apollo Server, Send Grid Email, Twilio SMS, Payment
• Gateway,
• Error Loggin, API Developement, API Security,
• PostGreSQL/MSSQL/MySQL, MongoDB/CouchDB
• Very good knowledge on REST API
• Good experience in Agile methodologies
• Ability to design and write code complying with coding standards
• and other factors like performance, scalability, reliability,
• reusability, modularity in mind
• You should have strong logical and problem solving skills
• Excellent communication and customer interfacing skills
• AWS certification is nice to have
• Strong proficiency with JavaScript and good to have
• ES6(Typescript) knowledge
• Knowledge of Node.js and frameworks such as Express, Restify
• Understanding the nature of asynchronous programming and its
• quirks and workarounds
• 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
• Competencies and Skills Required
• equires excellent analytical, problem solving, and good
• communications skills
• Must be able to work effectively with business stakeholders
• Strong passion for delivering technical solutions to business
• problems
• Understanding and mindset of Agile software delivery (Ability to
• adapt to continually changing priorities)
• Team player who understands the importance of teamwork and
• collaboration
• Passion for delivering new approaches and challenging the ‘statusquo’
• Hungry to learn and always in search of continuous improvement

We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade applications. . You'll be required to apply your depth of knowledge and expertise to all aspects of the software development lifecycle, as well as partner continuously with your many stakeholders daily to stay focused on common goals You will be part of a talented software team that works on mission-critical applications

Responsibility

• Write automated test cases to test code.
• Excellent teamwork skills with an ability to get the work done with minimal
• Experience with multiple mobile platforms is a plus.
• A passion and will to accept any new technical challenge that may come across.
• Linux scripting and SSH terminal
• Conceptual, Working knowledge of - DBMS, SQL, PL/SQL.
• Ability to write clean and documented code.

• A team player can provide technical expertise for a small team of developers.
• Strong hands-on and experience in core Java - Java/J2EE
• Design and implement new features, create UI, debugging, and data modeling.
• To update and sync with other team members daily.
• Ability to communicate effectively, both written and oral, at all levels to various technical and non-technical audiences
• Testing all applications against software and hardware versions. Provide timely turnaround and documentation of things implemented.

Additional preferred skills * JSP/Servlets OR JQuery/HTML5 AND JavaScript

Requirements:-

• Working knowledge of - MySQL.
• Working experience on Struts/Spring.
• Experience with web services standards and related technologies - SOAP/Rest, AJAX, JSON, and XML.

Role: Senior Software Developer

Experience: 3-6 years of experience.

Work Location: Bangalore

Job responsibility The Software Developer contributes, to create a customer’s solution, in the building phase of the software development life cycle. The Software Engineer is responsible for performing the detailed design of application and technical architecture components and classes in accordance to the specification provided by the Solution Architect, for coding of SW components, and for the early testing phases (component testing), and system testing support

Requirement:
Must Have skills: Java/J2ee, SQL, Web services, Spring Boot, Elastic search

Job description
- Hands on experience in Java, Python, scripting
- Design, implement, deploy and support web-based applications and web services using server technologies stacks that include Java, MySQL
- Experience in Java/J2EE using web frameworks Play or Spring boot, REST API Development and ORM (JPA, Hibernate eBean etc.)
- In depth knowledge of Design patterns and Data structures
- Databases - MySQL, Oracle, SQL
- Solid understanding of concepts like Web Services, SOA, REST APIs, Message Queue, Caching, Distributed/Scalable Architecture
- Secure application development best practices, such as OWASP
- Document and maintain all design documents and involve in review process.
- Experienced problem solving and debugging skills.
- Good verbal and written communication and interpersonal skills
- Experience in Agile methodology is added advantage
- Knowledge of Cloud Knowledge /Azure
- Must know about Unix knowledge
- experience in Elastic search

What we are looking for

• At-least 3 years of experience of development on backend applications. Full stack experience is a cherry on the top!
• Experience / knowledge of designing robust systems, maintaining & scaling them
• Experience with usage of NoSQL databases like MongoDB & with SQL and RDBMS Systems
• Experience of creating applications with any of the popular frameworks in Python, Java, GoLang, Node
• Experience with JS frontend frameworks like React, Angular, Vue etc is a big plus
• Well versed with versioning systems like git
• Understanding of rest API implementation

Some of the responsibilties you will be taking up are following

• Working on creating performant and fault tolerant systems which are scalable
• Design, build, and maintain high performance, reusable, and reliable codebase
• Effectively work with product to gather requirements, gain deep understanding of use cases and business needs, and translate into design and implementation.
• Maintain code integrity and organization.
• Manage basic devops related to CI/CD
• Creating secure systems
• Lead other junior developers
• Define optimal and minimal architecture to achieve product requirements