
Simpl (Fintech of the year - 2020) is a platform that empowers retailers to grow by building long term trusted relationships with their customers, one transaction at a time. For consumers, Simpl provides frictionless access to e-commerce, trust, safety and effortless budgeting, in 1-click.
Under the hood, we are building the payments infrastructure (identity, trust score and security) ground up for a world that is mobile first, where consumers frequently buy on the go & love convenience.
Everyone at Simpl is an internal entrepreneur who is given a lot of bandwidth and resources to create the next breakthrough towards a new world of Networked Commerce where commerce is easy, safe, affordable without fine prints & just Simpl!
Simpl was founded in 2015 by Nityanand Sharma and Chaitra Chidanand, and went live in 2016.
Role Summary:
We’re looking for polyglot developers who love to code. You should have >4 years of experience building high-quality products. You should have the ability to write clean code and must’ve worked on Ruby on Rails

About Simpl
About
Simpl has revolutionized online checkout in India by creating a Pay-Later platform, empowering e-commerce merchants to offer their consumers a 1-click checkout, a line of credit at POS, and full buyer protection. It aims to empower merchants to own their customer's checkout experience. With Simpl merchants are able to provide consumers with an easy, safe, and intuitive user experience that builds a trusted relationship between the two.
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Designation: Python Developer
Experienced in AI/ML
Location: Turbhe, Navi Mumbai
CTC: 6-12 LPA
Years of Experience: 2-5 years
At Arcitech.ai, we’re redefining the future with AI-powered software solutions across education, recruitment, marketplaces, and beyond. We’re looking for a Python Developer passionate about AI/ML, who’s ready to work on scalable, cloud-native platforms and help build the next generation of intelligent, LLM-driven products.
💼 Your Responsibilities
AI/ML Engineering
- Develop, train, and optimize ML models using PyTorch/TensorFlow/Keras.
- Build end-to-end LLM and RAG (Retrieval-Augmented Generation) pipelines using LangChain.
- Collaborate with data scientists to convert prototypes into production-grade AI applications.
- Integrate NLP, Computer Vision, and Recommendation Systems into scalable products.
- Work with transformer-based architectures (BERT, GPT, LLaMA, etc.) for real-world AI use cases.
Backend & Systems Development
- Design, develop, and maintain robust Python microservices with REST/GraphQL APIs.
- Implement real-time communication with Django Channels/WebSockets.
- Containerize AI services with Docker and deploy on Kubernetes (EKS/GKE/AKS).
- Configure and manage AWS (EC2, S3, RDS, SageMaker, CloudWatch) for AI/ML workloads.
Reliability & Automation
- Develop background task queues with Celery, ensuring smart retries and monitoring.
- Implement CI/CD pipelines for automated model training, testing, and deployment.
- Write automated unit & integration tests (pytest/unittest) with ≥80% coverage.
Collaboration
- Contribute to MLOps best practices and mentor peers in LangChain/AI integration.
- Participate in tech talks, code reviews, and AI learning sessions within the team.
🎓 Required Qualifications
- Bachelor’s or Master’s degree in Computer Science, AI/ML, or related field.
- 2–5 years of experience in Python development with strong AI/ML exposure.
- Hands-on experience with LangChain for building LLM-powered workflows and RAG systems.
- Deep learning experience with PyTorch or TensorFlow.
- Experience deploying ML models and LLM apps into production systems.
- Familiarity with REST/GraphQL APIs and cloud platforms (AWS/Azure/GCP).
- Skilled in Git workflows, automated testing, and CI/CD practices.
🌟 Nice to Have
- Experience with vector databases (Pinecone, Weaviate, FAISS, Milvus) for retrieval pipelines.
- Knowledge of LLM fine-tuning, prompt engineering, and evaluation frameworks.
- Familiarity with Airflow/Prefect/Dagster for data and model pipelines.
- Background in statistics, optimization, or applied mathematics.
- Contributions to AI/ML or LangChain open-source projects.
- Experience with model monitoring and drift detection in production.
🎁 Why Join Us
- Competitive compensation and benefits 💰
- Work on cutting-edge LLM and AI/ML applications 🤖
- A collaborative, innovation-driven work culture 📚
- Opportunities to grow into AI/ML leadership roles 🚀
We are seeking a skilled Java Developer with hands-on experience in Java and Spark to build scalable data processing solutions. You'll contribute to high-performance data pipelines and analytics platforms in a dynamic Agile environment.
Key Responsibilities
- Design and develop Java applications integrated with Apache Spark for ETL processes, data transformations, and analytics.
- Build and optimize Spark jobs (Spark SQL, DataFrames, Streaming) for large-scale data processing.
- Collaborate with data engineers and analysts to implement robust data workflows.
- Write clean, maintainable Java code following best practices (Spring Boot, Microservices preferred).
- Perform code reviews, unit testing, and contribute to CI/CD pipelines.
- Troubleshoot and optimize Spark performance for production workloads.
- Document technical solutions and mentor junior developers.
Required Skills & Qualifications
- 4-7 years of hands-on Java development experience.
- Strong expertise in Apache Spark (Spark Core, Spark SQL, PySpark basics).
- Proficiency in Java 8/11+ with multithreading and collections frameworks.
- Experience with data processing (ETL, data pipelines, big data).
- Familiarity with build tools (Maven/Gradle) and version control (Git).
- Strong problem-solving skills and Bangalore location availability.
- Excellent communication skills for cross-team collaboration.
Good to Have
- Experience with Snowflake for cloud data warehousing.
- Knowledge of DBT (Data Build Tool) for analytics engineering.
- Python scripting for data manipulation and automation.
- Exposure to AWS/GCP/Azure cloud platforms.
- Familiarity with Kafka, Airflow, or containerization (Docker/Kubernetes).
WHO YOU ARE
To be successful in this role, you’ll need to have the following skills:
· Love for coding: A fanatic about writing beautiful and scalable code.
· A sense of analytics: Strong analytical and troubleshooting skills. Should be resourceful, innovative and inventive.
· Dynamic: Should be comfortable in dealing with lots of moving pieces. Have exquisite attention to detail, and are comfortable learning new technologies and systems.
· Team player: Knack for influencing without being authoritative. Pitch in wherever the team needs help, from writing blog posts to supporting customers.
· Accountability: High sense of ownership for your code and relentlessness to deliver projects with high business impact.
KEY QUALIFICATIONS
· BE/BTech in Computer Science or related field.
· 5+ years of professional production and development experience with leading-edge server and database technologies (e.g., Python, Java, Node.js, Scala, Spring Boot, MySQL, and NoSQL databases).
KEY SKILLS
· Strong computer system analysis and design skills in current methodologies and patterns Experience with professional production cloud (AWS preferred).
· Experience with RESTful Services and APIs.
Responsibilities
Drive new feature development - from ideation to PoC to testing to scalable production deployments
Writing reusable, testable, and efficient code
Implementing highly scalable, secure, robust, and fault-tolerant systems
Working on continuously improving tools and systems Required Skills
Knowledge of relational databases (MySQL, Postgres) and NoSQL
Demonstrable experience with microservices (design, deployment, monitoring, etc.)
Strong proponent for best practices and code quality
Experience in architecting & building real-time, large scale software applications.
Excellent command over Data Structures and Algorithm Proficiency in implementation of algorithms and use of advanced data structures to solve problems in computing.
Bring software engineering and product delivery experience, with a strong background in algorithms.
Understanding fundamental design principles behind a scalable application.
Good communication skills
Strong Problem solving and analytical skills
Experience in Fintech Industry is a plus
About the company.
It is India's largest Corporate Employee Benefits Platform. Founded by alumni of UCLA, Amazon, and Microsoft. Our major verticals are Corporate Perks, Rewards & Recognition, and financial solutions. We are currently partnered with more than 250+ corporates, including Concentrix, RBS, Fidelity, Walmart, Amazon, etc., whose employees are offered exclusive privileges through our 10,000+ brand partners across categories It is leading the employee benefits market in India which pegged at $2 billion and growing.
💥 What will you do?
As a Lead Backend Engineer, you will
- Build out and help scale our Django (+ReactJS / VueJS) based web application as we add new features and customers
-
Help us transition from monolithic system architecture to microservices and serverless system architecture to help meet our future scaling requirements
- Collaborate on a daily basis with a small, nimble team of product managers, engineers, and UX designers to understand business requirements and user experience goals and pain points.
- Build out features to enable multi-channel customer acquisition include partner channels, enterprise channels, and government channels
- Integrate third-party plugins to enhance customer experience and internal tooling build internal tooling to improve internal team efficiencies.
- Actively participate in code reviews
- Work with our quality assurance team to improve coverage on our automated testing suites
🙋 What are we looking for?
While we do not have a strict list of requirements for candidates interested in this role, some indicators that you would fit this role and our engineering culture are
-
Prior experience of a few years (3+ years) with python based frameworks as Django or Flask would be essential to work on our application stack.
-
You actively promote a culture of engineering excellence some of which could be writing efficient code, use of elegant design patterns, and styling your code through code-linting policies.
-
You enjoy designing software architecture by collaborating with engineering managers, architects, and other lead engineers to explore existing systems, determining areas of complexity, potential risks to successful implementation.
- You enjoy coaching folks to achieve outcomes through nudges.
📢 Other information you may want to consider
- We will be flexible for the rest of the pandemic and work remotely; however, we are not a remote-first company, and the work location would be Bangalore when things settle.
- Our backend tech stack includes Django, FastAPI, Postgres, Redis, Clickhouse, and TigerGraph. Our environments are managed through Docker, Kubernetes, and Terraform.
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Ability to understand business requirements and translate them into technical requirements
- You will ensure that these components and the overall application are robust and easy to maintain.
- Have a good understanding of design and user experience principles.
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment
- Ensuring technologies are used efficiently, profitably, and securely. Evaluating and implementing new systems and infrastructure.
- Excellent troubleshooting, analytical and problem-solving abilities with a tenacious commitment to finding the root cause of issues.
Qualifications :
- B. Tech/ B.E. /M. Tech/ BCA / MCA or a related technical discipline from reputed universities
Skills Required :
- Minimum 1+ years of experience in REST API development using python.
- Must have experience with anyone popular python frameworks like Django, Flask, and FastAPI Framework.
- Experience in designing and developing Restful Web services and Remote procedure calls.
- Able to integrate multiple data sources and databases into one system
- Knowledge of load testing and optimizing code for performance, security, and scalability
- Experience with Unit testing frameworks in Python
- Knowledge of modern authorization & authentication mechanisms.
- Able to create database schemes that represent and support business processes
- Knowledge of Version Control System & basics of CI/CD
- Write and maintain technical documentation
- Solid foundation in OOPS, Data structures, and Algorithms
- Knowledge of SDLC phases of project development.
- Experience in one or more No SQL Databases such as MongoDB, and Cassandra.
- Experience with event-based databases and programming
- Good experience in synchronous programming and thread-based programming.
- Experience with schedulers.
- Good to have knowledge of Linux shell commands.
- Good to have experience in Kubernetes & Docker
- Knowledge of any Cloud Service like GCP or AWS would be an added advantage
- Cares deeply about writing Quality, Testable & Modular code
- Good to have an understanding of NLP.










