Platform Engineer

Job Overview

Architect and build scalable, high-performance backend systems while working on mission-critical platforms that process real-time market data and portfolio analytics. The role also involves leveraging Generative AI capabilities to enhance data intelligence, automation, and user-facing features, while ensuring regulatory compliance and secure financial transactions.

Key Responsibilities

• Design, develop, and maintain scalable backend services and APIs using NodeJS and Python
• Build event-driven architectures using RabbitMQ and Kafka for real-time data processing
• Develop and manage data pipelines integrating PostgreSQL and BigQuery for analytics and warehousing
• Integrate and deploy Generative AI models (LLMs, embeddings, AI APIs) into backend systems for automation, insights, and intelligent workflows
• Design AI-powered features such as recommendation systems, document processing, or conversational interfaces
• Ensure system reliability, security, and low-latency performance for mission-critical systems
• Lead technical design discussions, conduct code reviews, and mentor junior engineers
• Optimize database queries, implement caching strategies, and improve overall system performance
• Collaborate with cross-functional teams to deliver end-to-end product features
• Implement monitoring, logging, and observability solutions

Required Skills and Qualifications

• 2+ years of professional backend development experience
• Strong expertise in NodeJS and Python for production-grade applications
• Proven experience building RESTful APIs and microservices architectures
• Experience working with Generative AI frameworks/APIs (OpenAI, LangChain, vector databases, prompt engineering)
• Understanding of integrating LLMs into production systems (RAG, embeddings, fine-tuning basics)
• Strong proficiency in PostgreSQL, including query optimization and schema design
• Hands-on experience with RabbitMQ and Kafka
• Experience with BigQuery or similar data warehousing solutions
• Solid understanding of distributed systems, scalability patterns, and high-traffic applications
• Strong knowledge of authentication, authorization, and security best practices
• Experience with Git, CI/CD pipelines, and modern development workflows
• Excellent problem-solving and debugging skills
• Exposure to fintech or financial services, cloud platforms (GCP/AWS/Azure), Docker/Kubernetes, caching tools (Redis/Memcached), and regulatory requirements (KYC, compliance, data privacy) is a plus

Apply directly at: https://wohlig.keka.com/careers/jobdetails/136351

Client Company is a profitable, rapidly scaling unicorn which is extremely well capitalized. Client has a very strong moat in the consumer lending space on the back of which it is entering into additional large markets such as E-comm and UPI. 

Client company is now entering its next phase of growth from a fast-scaling startup to a robust, high-scale financial platform serving millions of users daily. You'll design systems built for 10x100x growth, make the key technical trade-off calls, and stay deeply hands-on. Beyond building, you'll mentor engineers and work directly with founders and product teams to translate business goals into scalable, reliable systems. 

This role is an opportunity to: 

• Shape the next-generation architecture for a high-throughput fintech system 
• Build systems designed to scale 10x–100x from current volumes 
• Solve real-world problems across performance, reliability, and financial-grade security 

Responsibilities 

•  Design and evolve the platform architecture to support 10x–100x growth 
•  Own systems end-to-end from the first design decision to production impact 
•  Lead system design discussions and set the long-term technical direction for the platform 
•  Identify scale bottlenecks early and drive solutions 
•  Mentor and elevate engineers through design reviews, code quality, and architectural thinking 
•  Partner directly with founders and product teams to turn business priorities into scalable systems 
•  Operate with high ownership in a fast-paced environment where priorities evolve quickly 
•  Drive projects independently own timelines, coordinate with teams, and see delivery 
•  Conduct rigorous code reviews and champion engineering best practices across the team 
•  Proactively identify gaps in the system and come up with concrete approaches to address them 
•  Solve technical problems across the company not just confined to a single pod 
•  Challenge existing architecture with data and reasoning push back when it’s the right call, and drive adoption of better approaches.

Requirements 

•  7–12 years of experience in backend or platform engineering 
•  Strong computer science fundamentals (preferably from IIT, BITS, NITs) 
•  Strong proficiency in backend development (Node.js, Java, Go, or equivalent) 
•  Proven experience scaling systems through high-growth startup phases (1→10 or beyond) 
•  Track record of building and owning critical platforms or systems from scratch 
•  Exposure to high-volume transactional systems; fintech or lending is a strong plus 
•  Bias for action - moves fast, makes sound decisions, owns outcomes end-to-end 
•  Comfortable navigating ambiguity and evolving priorities in a startup environment 
•  Strong problem-solving skills ability to break down complex technical challenges and arrive at pragmatic, well-reasoned solutions 
•  Hands-on experience with platform engineering developer tooling, shared services, infrastructure abstractions, or internal platforms 

Job Summary:

We are seeking a dynamic and highly skilled Full Stack Developer with 3-5 years of experience to join our client's team. The ideal candidate will be working with a leading MNC client in the health insurance domain. This role is based in Gurugram and requires candidates to work from the office, Monday to Friday. You will play an integral role in developing and enhancing applications using Node.js, TypeScript, PostgreSQL, and MongoDB.

Responsibilities:

• Design, develop, and maintain scalable applications using Node.js and TypeScript.
• Build and optimize RESTful APIs and backend services.
• Collaborate with cross-functional teams to deliver high-quality products and services.
• Work with PostgreSQL and MongoDB databases for efficient data management and retrieval.
• Ensure the performance, quality, and responsiveness of applications.
• Troubleshoot, debug, and upgrade existing systems and platforms.
• Implement best practices for security, code quality, and performance optimization.
• Participate in code reviews and provide mentorship to junior developers.

Requirements:

• Experience: 3-5 years of hands-on development experience with Node.js, TypeScript, PostgreSQL, and MongoDB.
• Technical Skills:
• Proficiency in Node.js and TypeScript for building scalable web applications.
• Strong experience working with PostgreSQL and MongoDB databases.
• Hands-on experience in building RESTful APIs and microservices architecture.
• Knowledge of best practices in application development, security, and performance tuning.
• Familiarity with version control tools like Git.
• Preferred:
• Experience in the health insurance or fintech domain.
• Ability to work in an agile environment with fast-paced deliverables.
• Excellent communication and collaboration skills.

Soft Skills:

• Strong problem-solving skills and ability to troubleshoot complex issues.
• Ability to work in a team and independently when required.
• Adaptability and willingness to learn new technologies.

• Develop, test, and maintain server-side applications using Node.js and related technologies.
• Design and implement RESTful APIs and microservices architecture to support frontend functionality.
• Collaborate with cross-functional teams to understand business needs and translate them into technical solutions.
• Optimize application performance, ensuring scalability and reliability.
• Conduct code reviews, mentor junior developers, and ensure adherence to best practices.
• Stay updated with emerging backend technologies and methodologies to improve development processes.

Mandatory

• SaaS experience of 2 years with total development experience of 4 years
• Must have worked in a smaller company of less than 100
• Should have built solutions/softwares end to end and not just as a part of bigger team
• Should see themselves going deeper into the same role even 5 years down the line
• Should have knowledge on Node.js, MongoDB, and AWS
• Strong understanding of asynchronous programming, event-driven architecture, and Node.js design patterns.
• Proficiency in working with databases such as PostgreSQL, MongoDB, or MySQL.
• Experience with API development, including RESTful services and microservices.
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
• Strong problem-solving skills and the ability to debug complex server-side issues.

Essential

• Proficiency with version control systems like Git.
• Experience with CI/CD pipelines and deployment automation.
• Knowledge of system design and scalable architecture.
• Understanding of security best practices and implementing secure APIs.

Good to Have

• Experience with GraphQL and related backend technologies.
• Knowledge of containerization and orchestration tools like Docker and Kubernetes.
• Familiarity with message brokers like RabbitMQ or Kafka.
• Experience with platforms like Shopify, BigCommerce, or other e-commerce technologies.
• Exposure to frontend technologies such as React for better cross-functional collaboration.

Review requirements, design specifications and propose solution and have discussion before implementation

Work with team leads on the requirements and create estimates against those requirements

Deliver projects on time in an agile and continuous development environment

Writing tests in a client-side test framework such as Jest, Jasmine, Mocha, etc.

Work withQA team for resolving issues

Report status with tools like JIRA to stakeholders

• 3-5 years of work experience developing complex software
• Minimum 2years sound experience with back-end development in Java-script frameworks like loopback, Express, etc
• A solid understanding of core Javascript principles and its fundamentals
• Familiarity with popular Javascript tools, frameworks and design principles, and enjoy staying up to date with the changing Javascript ecosystem
• Strong communication skills across the board, with a passion for finding and sharing best practices and driving.

• Javascript • Node • Express • Loopback • OAuth • API Development
• Plus Points • Knowledge of Go, Ruby, Python, Closure or any other languages • Test Driven Development (TDD) • Knowledge of front-end development

• Developing and maintaining all server-side network components.
• Ensuring optimal performance of the central database and responsiveness to front-end requests.
• Collaborating with front-end developers on the integration of elements.
• Designing customer-facing UI and back-end services for various business processes.
• Developing high-performance applications by writing testable, reusable, and efficient code.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Keeping informed of advancements in the field of Node.js development.

Main Street is hiring a Full Stack Engineer who will help design our technical architecture and build solutions that help business owners become entrepreneurs. Apply if you are excited about creating a platform for true entrepreneurship. 

As an early hire on the core team, you’ll work on shaping projects, big and small, over short three week sprints. We’re a small team, but we get a lot of features shipped. You would be responsible for driving full-stack projects from prototype to finished stage with a lot of autonomy and creativity. This is an exciting time to join the team. We've found solid early traction, have strong basic foundations and are pushing aggressively into some incredible new feature builds. We have a small team, so you can make an incredible impact on our product very quickly. 

Responsibilities:

• Own the design of the overall architecture of the web application
• Implement a robust set of services and effective APIs to power the web application
• Build reusable and manageable code and libraries for future use
• Optimize the application for maximum speed and scalability
• Translate UI/UX wireframes to visual elements
• Develop and handle well-functioning databases and applications
• Test software to ensure responsiveness and efficiency 
• Troubleshoot, debug and upgrade software

Experience:

• Proven expertise in shipping features in Ruby on Rails. Strong background in Ruby on Rails, HTML, CSS and JavaScript
• Strong experience in driving thought leadership and technical architecture
• Experience with mentoring juniors in the team

You are a fit if :

• You are a skilled coder. We need candidates with a strong history of shipping features in Rails with clean maintainable code. 
• You are a good communicator and a really good writer. Since we are async and remote most of our work is written. You'll need to be able to proactively communicate in concise, clear, simple writing.
• You are an expert project manager. You need to be able to break down a large, complex business deliverable into executable pieces that can be managed as individual user stories. You need to be able to keep a project on track, and cut scope when needed.
• You don't need babysitting and are a Manager of One. We love people who have started companies or have freelanced in the past. You take ownership and take things across the finish line. Especially in our remote async approach, you'll need to be intrinsically motivated and keep your  projects on track.
• You have strong business and product acumen. This job isn't just writing code, we solve real business problems for real people. That means you need to be able to look beyond the user story, have empathy for our end users and solve real problems for them.

About Main Street:

We're solving a problem that 62% of Americans have

62% of Americans last year thought about starting a business. The #1 reason they didn’t was because they didn’t know where to start. Currents options are:

1. Going independent which is risky: no support or direction
2. Paying a franchise which is expensive:  franchises charge $100K+ fees to get started, take 10% of topline revenue, don't provide marketing support or technology

The market we're going after is bigger than e-Commerce

We’re disrupting the $2.3T franchise industry by removing the franchise fee and offering a tech-enabled franchise like product.

We’re starting with home painting where our biggest competitor is https://certapro.com/">CertaPro a $550M revenue franchise (1% market share) before quickly taking on https://www.neighborlybrands.com/our-brands/">Neighborly Brands as we expand categories (pest control, lawn care, etc.).

As we expand categories, our customer does not change

Our customer is an aspiring business owner, like https://www.linkedin.com/in/nicklaforest">Nick or https://www.linkedin.com/in/hardin-h-hawes-9ba6a72/">Hardin who doesn't care what type of business they start, as long as it is profitable. Our customers are not actually the one painting houses or completing roofing jobs, rather they are the one that hires people to do the job. Our customer has years of experience in sales and general management, which makes them suitable for any type of business — which is why as we expand to 100 categories, our customer does not change.

Our solution is an end to end platform to help you start, grow and run a business

Main Street is a combination of well known technology platforms that provides an Uber like simple experience to starting a business

• https://stripe.com/atlas">Stripe Atlas: Helping you incorporate and set up legal logistics for your business
• https://www.duolingo.com/">Duolingo: Learn a new skill (in our case it is about a specific type of a business)
• https://www.shopify.com/online/ecommerce-solutions">Shopify: The operating tools to run your business
• https://www.womply.com/">Womply: A marketing stack to drive you customer

Take a look Main Street's Product walk through https://www.youtube.com/watch?v=teajumhL5DI&;feature=emb_title">here.

We're backed by top investors and built a world class team

We're a seed-stage startup and have raised $10M+ from top investors including Greylock and Khosla. Our team previously worked at places like DoorDash, OpenDoor, Amazon and OYO.