Senior Backend Developer

Who are we?

Trendlyne is a Series-A funded, profitable products startup in the financial markets space. We have cutting-edge analytics products built for Indian and US customers, for stock markets and mutual funds.Our founders are IIT + IIM graduates, with strong tech and marketing experience. 

What do we do?

We build powerful analytics in the US and Indian stock market space that are best in class. Organic growth in B2B and B2C products have already made the company profitable. We deliver 1 billion+ APIs every month to B2B customers, and have 25 Lakh+ Monthly Average users on Trendlyne B2C website and app.

Visit us at trendlyne.com, or look for the trendlyne mobile app on the Google Play Store:

https://play.google.com/store/apps/details?id=com.trendlyne.markets

Tech Stack

• Python (Django)
• PostgreSQL / MySQL manages millions or row insertions each day
• Vector Databases / RAG manages all documents 
• Redis / caching systems
• REST APIs
• 100+ AI tooling and Foundation model integrations

Job Responsibilities : 

• Develop and maintain scalable, robust backend systems using Python and Django framework. 
• Work closely with product managers and other cross functional teams to help define, scope and deliver world-class products and high quality features addressing key user needs. 
• Translate requirements into system architecture and implement code while considering performance issues of dealing with billions of rows of data and serving millions of API requests every hour. 
• Ability to take full ownership of the software development lifecycle from requirement to release. 
• Writing and maintaining clear technical documentation enabling other engineers to step in and deliver efficiently. 
• Embrace design and code reviews to deliver quality code. 
• Play a key role in taking Trendlyne to the next level as a world-class engineering team 
• Develop and iterate on best practices for the development team, ensuring adherence through code reviews. 
• As part of the core team, you will be working on cutting-edge technologies like AI products, online backtesting, data visualization, and machine learning. 
• Develop and maintain scalable, robust backend systems using Python and Django framework.
• Proficient understanding of the performance of web and mobile applications.

Job Requirements : 

• Ownership mindset: you build, ship, and improve 
• At least 1+ years of experience with Python and Django. 
• Good knowledge of APIs, databases, and system performance
• Strong understanding of relational databases like PostgreSQL or MySQL and Redis. - (Optional): Experience with web front-end technologies such as JavaScript, HTML, and CSS

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.

🚀 We're Hiring — Backend Developer (3–5 Yrs Exp)

📍 Location: Coimbatore / Remote (India)

⏱ Notice: Immediate

🔧 What You'll Do:

• Build and maintain scalable REST APIs

• Work with Django/Flask on production-grade systems

• Manage databases — PostgreSQL, MySQL, MongoDB

• Implement caching (Redis) & queuing (RabbitMQ/Kafka)

• Deploy & manage services using Docker

• Work on AWS or GCP cloud infrastructure

• Collaborate via Git, CI/CD pipelines

✅ You Should Have:

• 3–5 years of hands-on Python backend experience

• Strong grasp of data structures & design patterns

• Comfort with Linux & version control workflows

• Good communication & team collaboration skills

⭐ Bonus Points:

• Experience with LLM integrations or RAG pipelines

• Familiarity with Vector DBs (Pinecone/ChromaDB)

• Prior startup or fast-paced environment experience

Interested? Drop your resume or refer someone who'd be a great fit! 💼

We are looking to expand our existing Python team across our offices in Surat.

The requirements are as follows:

1) Familiar with the the Django REST API Framework.

2) Experience with the FAST API framework will be a plus

3) Strong grasp of basic python programming concepts ( We do ask a lot of questions on this on our interviews :) )

4) Experience with databases like MongoDB , Postgres , Elasticsearch , REDIS will be a plus

5) Experience with any ML library will be a plus.

6) Familiarity with using git , writing unit test cases for all code written and CI/CD concepts will be a plus as well.

7) Familiar with basic code patterns like MVC.

8) Grasp on basic data structures.

Job Overview:

We are looking for a seasoned Senior Backend Engineer (SDE III) with over 5 years of experience to lead, mentor, and grow a high-performing engineering team. The ideal candidate will have extensive hands-on experience in software development, deep technical expertise, and a proven track record of successfully leading large-scale engineering teams and projects. This role requires strategic leadership, the ability to manage complex technical challenges, and the ability to drive innovation while ensuring operational excellence.As a Backend Lead, you will collaborate with key stakeholders across the business, product management, and operations to ensure alignment with the organization’s goals and play a critical role in shaping the technology roadmap and engineering culture.

Key Responsibilities:

• Leadership and Team Development: Lead and inspire a team of engineers, fostering a culture of innovation, accountability, and continuous improvement. Manage the hiring, training, and career development of engineering staff.
• Strategic Planning: Work closely with senior leadership to develop and implement engineering strategies that support business objectives. Define technology roadmaps and ensure alignment with organizational goals.
• Technical Excellence: Guide the team in designing and implementing scalable, robust software systems. Drive the adoption of best practices in architecture, coding standards, and software testing to ensure high-quality product delivery.
• Project and Program Management: Oversee the successful delivery of engineering projects, ensuring deadlines, quality standards, and budget constraints are met. Use agile methodologies to manage the development process and resolve bottlenecks.
• Cross-functional collaboration: Collaborate with Product Management, Design, Business, and Operations teams to define project requirements and deliverables. Ensure the smooth integration of engineering efforts across the organization.
• Risk Management: Anticipate and mitigate technical risks and roadblocks. Proactively identify areas of technical debt and drive initiatives to reduce it.
• Stakeholder Communication: Act as the technical point of contact for stakeholders, providing regular updates on project progress, resource allocation, and performance metrics. Communicate complex technical concepts to non-technical stakeholders.

Required Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
• 5+ years of experience in software engineering
• Proven track record of successfully delivering large-scale, high-impact software projects.
• Strong understanding of software architecture, design patterns, and scalable system design.
• Expertise in multiple programming languages and modern development frameworks For this role we require expertise in Python/Django and API Development
• Experience with cloud infrastructure (AWS), microservices, and distributed systems.
• Good experience with MySQL and ElasticSearch. Slight experience with other NoSQL and SQL databases.
• Experience in DevOps, CI/CD pipelines, and infrastructure automation.
•  Experience in delivering full-stack B2B/SaaS applications including mobile applications, web frontend, and a scalable backend.
• Excellent problem-solving skills, with the ability to diagnose and resolve complex technical challenges.
• Strong communication and interpersonal skills, with the ability to influence and inspire teams and stakeholders at all levels.

At Webcyper Pvt Ltd, we are a growing technology company building innovative web solutions for our clients. We focus on delivering high-quality digital products, and we’re on a mission to scale our operations with talented, passionate individuals.

If you're a problem solver, love clean code, and are excited to work in a fast-paced startup environment — we want to hear from you!

Key Responsibilities:

Develop, test, and maintain high-quality web applications using Python and Django framework.

Work closely with frontend developers and designers to implement user-friendly interfaces.

Integrate third-party APIs and services.

Write clean, reusable, and efficient code.

Optimize applications for speed and scalability.

Troubleshoot, debug, and upgrade existing applications.

Participate in code reviews and technical discussions.

Stay up-to-date with emerging trends and technologies in backend development.

Primary Skills: Database Systems (SQL), Python Flask/Fast API/Django frameworks specifically
Requirements:

• Highly proficient in fundamentals of Python web development frameworks like Flask, Django and Fast API
• Demonstrated experience in developing APIs using Python frameworks
• Should have deep knowledge in PostgreSQL, MS SQL Server and other SQL based Databases

• Apply fundamental software engineering design principles and write effective, scalable code.
• Develop back-end components to improve responsiveness and overall performance
• Strong understanding of multi-threading, synchronization & performance analysis of web applications
• Highly experienced with developing RESTful API’s
• Integrate user-facing elements into applications
• Develop unit tests, automation and debug code
• Improve & maintain the functionality of existing systems
• Implement security and data protection solutions
• Understand the big picture, coordinate with internal teams to understand user requirements and provide technical solutions

• Bachelor’s degree in Computer Science, Information Technology or relevant field.
• 5+ work experience as a Python Developer
• Expertise in Django or at least one other popular Python web framework
• (like Flask or Pyramid)
• Excellent Python 3 development & debugging skills
• Knowledge of object oriented analysis & design as well as object-relational mapping (ORM) techniques
• Strong understanding microservices architecture & design patterns
• Strong understanding of RESTful API design principles, including good
• documentation of API using Swagger/OpenAPI specifications
• Familiarity with GIT
• Familiarity with microservices development & deployment, including CI/CD pipelines
• (e.g. Jenkins) and containerization platforms (e.g, Docker)
• Familiarity with front-end technologies (like JavaScript and HTML5)
• Excellent team spirit & exceptional problem-solving skills

• Solid experience in RoR, Golang, NodeJS or Python. Good to have exposure to ML.
• Should have experience in cloud computing
• Has an ability to quickly learn and contribute in multiple codebase
• Overcomes roadblocks and requires minimal oversight
• Takes initiatives to fix issues/tech debts before assigned to him/her
• Able to deep dive into codebase and advise QA of possible regression impact
• Communicates tech decisions through design docs and tech talks
• Has delivered projects with end-to-end accountability
• Keeps track of industry trends and introduces right tech/tools for a given job
• Excellent understanding of software engineering practices, Design Patterns, Data Structures, Algorithms