Software Engineer - Lead

Product Engineer

Product Engineer | Fibr.ai

Bengaluru · In office · 2-6 years Stack: Python · FastAPI · Temporal · PostgreSQL · MongoDB

The role Fibr is building the agentic web experience layer - turning every URL into an intelligent agent that senses intent, makes decisions, and adapts in real time. Our agents personalise the full journey, running long LLM workflows against live customer accounts and millions of sessions.

You'll own features end-to-end - from the rough idea in a Slack thread to something shipped, instrumented, and behaving correctly in production. New surface areas land on your plate every few weeks: a new agent, a new integration, a new optimization loop. You're responsible for the whole thing, including the evals and metrics that prove it works. You'll work directly with the founding team and ship to real users every week.

What you'll do Ship AI-powered features end-to-end - backend, data, LLM layer, and the surface the user sees Design long-running workflows that hold up against rate limits, partial failures, and noisy third-party APIs Build and maintain the evals, guardrails, and instrumentation that decide whether a feature is good enough to ship Model the data behind agents and the analytics behind product decisions Sit in on architecture calls and shape where the platform goes next

Must-haves 2-6 years of production backend experience Has shipped LLM-powered features to real users in production - not demos, not side projects. Be ready to talk about what broke and how you fixed it Has built and run evals for LLM systems. Show us the harness, the dataset, and the decisions it drove Comfortable across relational and document databases Has worked with a durable workflow or queue system in production Ships fast without breaking the build Nice-to-haves RAG, vector stores, or tool-use / multi-step agents in production Experience with rate-limited third-party APIs at scale (ad platforms, CRMs, analytics) Strong product sense - you catch the UX issue before the user does Time spent at an early-stage startup

How we work High ownership, low bureaucracy. Decisions in the room, not in docs. You'll work directly with the founding team.

Why Fibr AI Competitive salary + meaningful early-stage equity A chance to build deep expertise at the frontier of AI product

Position Overview:

We are seeking a Node.js Developer with 1-2 years of experience to join our team. The ideal candidate should have hands-on experience in backend development, a solid understanding of JavaScript, Express.js, and familiarity with databases. You will be responsible for developing and maintaining server-side applications, collaborating with front-end teams, and ensuring optimal performance.

Key Responsibilities:

• Backend Development: Build and maintain server-side applications using Node.js and Express.js.
• API Development: Design and implement RESTful APIs to support various functionalities.
• Database Management: Work with both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases.
• Code Quality & Testing: Write clean, reusable, and testable code while following best practices.
• Performance Optimization: Optimize applications for speed and scalability.
• Troubleshooting & Debugging: Identify and resolve application issues to ensure smooth operations.
• Security Implementation: Apply basic security measures to protect applications and data.
• Collaboration: Work closely with front-end developers to integrate UI components with backend logic.

Required Qualifications:

• 1-2 years of experience in Node.js backend development.
• Strong proficiency in JavaScript and ES6+ concepts.
• Hands-on experience with Express.js or similar frameworks.
• Familiarity with front-end technologies (HTML, CSS, React/Angular is a plus).
• Experience working with databases (MySQL, PostgreSQL, MongoDB).
• Basic understanding of asynchronous programming and event-driven architecture.
• Experience with Git for version control.
• Knowledge of basic cloud services (AWS, Azure, or GCP is a plus).
• Understanding of Docker and containerization is an advantage.
• Good problem-solving skills and willingness to learn.

JioTesseract, a digital arm of Reliance Industries, is India's leading and largest AR/VR organization with the mission to democratize mixed reality for India and the world. We make products at the cross of hardware, software, content and services with focus on making India the leader in spatial computing. We specialize in creating solutions in AR, VR and AI, with some of our notable products such as JioGlass, JioDive, 360 Streaming, Metaverse, AR/VR headsets for consumers and enterprise space.

About the Job

As a Cloud Backend Engineer you will design, develop, and maintain scalable and reliable backend systems in cloud environments. You will be responsible for building cloud-native applications, optimizing backend performance, and ensuring seamless integration with frontend services and third-party systems.

What You’ll Be Doing

• Backend Development
• Design and implement scalable and high-performance backend services and APIs for cloud-based applications.
• Develop microservices architectures and serverless functions to support business needs.
• Ensure backend systems are secure, reliable, and performant, adhering to best practices and industry standards.
• Cloud Infrastructure and Deployment
• Build and manage cloud infrastructure using platforms such as AWS, Google Cloud Platform (GCP), or Azure.
• Deploy and maintain backend services using cloud-native technologies (e.g., Kubernetes, Docker, AWS Lambda, Google Cloud Functions).
• Implement and manage CI/CD pipelines to automate deployment processes and ensure smooth delivery of updates.
• Performance Optimization
• Monitor and optimize the performance of backend services, including database queries, API responses, and system throughput.
• Implement caching strategies, load balancing, and other performance-enhancing techniques to ensure scalability and responsiveness.
• Troubleshoot and resolve performance issues and system bottlenecks.
• Database Management
• Design and manage relational and NoSQL databases, ensuring data integrity, scalability, and performance.
• Implement data access patterns and optimize queries for efficient data retrieval and storage.
• Ensure backup, recovery, and data security practices are in place.
• Integration and Collaboration
• Collaborate with frontend developers, DevOps engineers, and other stakeholders to integrate backend services with frontend applications and third-party systems.
• Participate in architectural discussions and provide input on system design and technology choices.
• Ensure clear communication and documentation of backend services, APIs, and system interactions.
• Security and Compliance
• Implement security best practices to protect backend services from threats and vulnerabilities.
• Ensure compliance with relevant regulations and standards, including data privacy and protection requirements.
• Conduct regular security assessments and vulnerability scans to maintain system integrity.
• Testing and Quality Assurance
• Develop and maintain automated tests for backend services, including unit tests, integration tests, and end-to-end tests.
• Perform code reviews and participate in quality assurance processes to ensure high code quality and reliability.
• Monitor and address issues identified during testing and production deployments.
• Documentation and Knowledge Sharing
• Document backend services, APIs, and infrastructure setups to facilitate knowledge sharing and support.
• Create and maintain technical documentation, including architecture diagrams, API specifications, and deployment guides.
• Share knowledge and best practices with team members and contribute to a collaborative development environment.

What We Need To See

• Strong experience in backend development, cloud technologies, and distributed systems, with a focus on building robust, high-performance solutions.
• Minimum 5 years of experience in backend development, with a strong focus on cloud-based applications.
• Proven experience with cloud platforms (AWS, GCP, Azure) and cloud-native technologies.
• Experience in designing and implementing RESTful APIs, microservices, and serverless architectures.
• Technical Expertise in:

1. Backend Development

• Strong experience with backend programming languages such as Node.js, Python
• Expertise in working with frameworks such as NestJS, Express.js, or Django.

2. Microservices Architecture

• Experience designing and implementing microservices architectures.
• Knowledge of service discovery, API gateways, and distributed tracing.

3. API Development

• Proficiency in designing, building, and maintaining RESTful and GraphQL APIs.
• Experience with API security, rate limiting, and authentication mechanisms (e.g., JWT, OAuth).

4. Database Management

• Strong knowledge of relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g. MongoDB).
• Experience in database schema design, optimization, and management. 

5. Cloud Services

• Hands-on experience with cloud platforms such as Azure,AWS or Google Cloud.

6. Performance Optimization

• Experience with performance tuning and optimization of backend services.

7. Security

• Understanding of security best practices and experience implementing secure coding practices.
• Soft Skills:
• Strong problem-solving skills and attention to detail.
• Excellent communication and collaboration skills, with the ability to work effectively in a team environment.
• Ability to manage multiple priorities and work in a fast-paced, dynamic environment.

ROR :: JD

Immediate Joiner

• Having experience on Ruby on Rails.
• Strong SQL skills with MySQL or PostgreSQL
• Knowledge on MongoDB an advantage.
• Experience with TDD (test driven development) or RSpec.
• Having experience on REST/API.
• JRuby experience is an advantage
• Knowledge on Exilir and functional programming a plus and JRuby is an advantage.
• Experience using Git productively in a team environment.
• Experience into Amazon web services
• Knowledge on Jenkins is an advantage.
• Knowledge on Docker.
• Excellent analytical and problem-solving skills

Required Skills:

• Degree in Computer Science, Software Engineering or equivalent.
• Minimum 3+ years experience in software development.
• Expertise in Python 3.7, Django 2.2+ and REST APIs
• Minimum 3+ years experience with AWS or related services.
• Willingness to learn and ability to flourish in a dynamic, high-growth, entrepreneurial environment
• Hands-on, self-starter, capable of working independently
• True love for technology and what you do
• Maniacal attention to detail
  
  

We are looking for a Backend developer who is passionate about building end to end applications. 

What you will be doing: 

• Designing and developing scalable applications and takes care of test and deployment as well. 
• Managing individual project priorities, deadlines, and deliverables. 
• Architect and implement software libraries in a multi-cloud environment 
• Design and build a flexible logging, monitoring, and alerting infrastructure 
• Build scalable APIs using python and is familiar with the latest developments in the language 

Skills Required: 

• Expert in Python 3 
• Detailed knowledge of Python web framework Django or Flask (2 to 3 years) 
• Familiarity with some ORM (Object Relational Mapper) libraries, 
• Knowledge of Django REST framework and its concepts like Serializers, Viewsets, Filters, Mixins. 
• Experience with relational databases like PostgreSQL, MySQL 
• Experience with Python libraries like Pandas, Numpy. 
• Experience with databases NoSQL databases like MongoDB, Cassandra, DynamoDB is a big plus 
• Experience with technologies like Celery, Gunicorn, Redis. 
• Knowledge of Computer Science fundamentals in object-oriented design, data structures, algorithm design, problem-solving, complexity analysis, databases, networking, and distributed systems. 
• Experience with working on Linux system, GIT, CI/CD pipelines. 
• Experience in designing scalable architectures to support a data-intensive application. 
• Experience of working with AWS services like EC2, S3, RDS, lambda etc. 
• Previous work experience at a product-based company or startup would be a bonus. 
• Prior experience working in IoT domain or energy sector will be plus. 

Personality traits we really admire: 

• Great attitude to ask questions, learn, and suggest process improvements. 
• Attention to detail and helps identify edge cases. 
• Equal importance to planning, coding, code reviews, documentation, and testing. 
• Highly motivated and coming up with fresh ideas and perspectives to help us move towards our goals faster. 
• Adheres to release cycles and absolute commitment to deadlines. 

• Develop creative solutions and write technical design based on the requirements.
• Work closely with peer teams to ensure that applications are written to allow for overall system performance.
• Assist in tuning and optimization.
• Develop and execute unit tests for product components.
• Perform peer code reviews and provide feedback.
• Promote high quality, scalability, and timely completion of projects.
• Apply agile approach to coordinate development and determine project scope and limitations.
• Bachelor degree in Engineering, CS or equivalent experience
• Development in Core Java, J2EE, Struts, spring, Client-Side scripting, Hibernate, Database
• Development of scalable core-java applications, Web Applications and Web Services
• OOP concepts 
• Data Structures, algorithms and their applications
• Strong problem-solving skills
• Experience in building microservices
• Strong experience with Spring Boot stack (spring cloud, spring-data)
• Extensive experience in developing and consuming REST APIs
• Experience in Kafka distributed messaging
• Hands-on experience in Redis, Apache Ignite, Hazelcast
• Strong experience in RDMS and NoSQL databases Mongo
• Experience in using Elastic Search
• Experience in profiling applications
• Strong analytical skills and general logical reasoning
• Excellent written and verbal communication skills.
• Good understanding of Software development life cycle (SDLC)
• Basic SQL queries

About the Company:

 It is a Data as a Service company that helps businesses harness the power of data. Our technology fuels some of the most interesting big data projects of the word. We are a small bunch of people working towards shaping the imminent data-driven future by solving some of its fundamental and toughest challenges. 

Role: We are looking for an experienced team lead to drive data acquisition projects end to end. In this role, you will be working in the web scraping team with data engineers, helping them solve complex web problems and mentor them along the way. You’ll be adept at delivering large-scale web crawling projects, breaking down barriers for your team and planning at a higher level, and getting into the detail to make things happen when needed.  

Responsibilities  

•  Interface with clients and sales team to translate functional requirements into technical requirements 
•  Plan and estimate tasks with your team, in collaboration with the delivery managers 
•  Engineer complex data acquisition projects 
•  Guide and mentor your team of engineers 
•  Anticipate issues that might arise and proactively consider those into design 
•  Perform code reviews and suggest design changes 

Prerequisites 

•  Between 2-3 years of relevant experience 
• Fluent programming skills and well-versed with scripting languages like Python or Ruby 
• Solid foundation in data structures and algorithms 
• Excellent tech troubleshooting skills 
• Good understanding of web data landscape 
• Prior exposure to DOM, XPATH and hands on experience with selenium/automated testing is a plus