Senior Python Developer

About the Role

Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies. We are hiring a Backend Engineer for a dedicated client engagement building an AI-powered application builder platform.

The backend is the operational core of the product: it manages user projects and sessions, coordinates long-running AI agent workloads, maintains project state, and serves as the integration layer between the frontend, the AI system, and the underlying infrastructure.

The mandatory requirement is hands-on production experience shipping Node.js services, with end-to-end ownership of API design, data modelling, and at least one production system involving background job processing or event-driven patterns.

Responsibilities

API and service development: Design and build REST APIs in Node.js with TypeScript. Cover authentication, session management, input validation, structured error handling, streaming responses (SSE, WebSockets), and rate limiting. Maintain clean API contracts that the frontend and AI system can rely on.

Database design and management: Own PostgreSQL schema design for product domains including user accounts, projects, file trees, session state, and generated artefacts. Write efficient queries, manage migrations, and optimise for read patterns that serve a real-time editor experience.

Caching strategy: Implement and maintain caching with Redis for session data, project state, and frequently read configuration. Design cache invalidation logic that keeps the editor experience consistent without stale reads.

Queue and background job management: Implement and operate background job infrastructure using BullMQ or equivalent. AI agent runs are long-running and stateful; handle retries, failure states, priority queues, and concurrency limits.

AI system integration: Build the integration layer between the backend and the AI agent system. Manage job dispatch, result handling, streaming output to the frontend, and error propagation.

Multi-tenancy and access control: Implement tenant data isolation, RBAC, and resource ownership enforcement across all API surfaces.

Observability and reliability: Instrument services with structured logging, metrics, and tracing. Write defensive code with sensible timeouts, fallback behaviour, and circuit breaking on external dependencies.

Testing and code quality: Write unit and integration tests for the services you ship. Review the work of peers and contribute to shared engineering conventions.

Requirements

• Hands-on production Node.js experience (mandatory) — must have personally shipped at least one feature area end to end in a production Node.js service, owning API design, data modelling, and testing.

• 3 to 5 years of professional backend engineering experience. Candidates with slightly less time but strong demonstrated ownership are welcome to apply.

• Strong Node.js and TypeScript. Production experience with Express, NestJS, or Fastify. Solid with async patterns, streaming, error handling, and building services that run reliably under sustained load.

• PostgreSQL depth. Schema design, query writing, indexing, and migrations on at least one production system.

• Redis and caching. Production experience using Redis for caching and session management. Understands cache invalidation trade-offs.

• Queue and background job systems. Hands-on with BullMQ, RabbitMQ, SQS, or equivalent. Experience managing retries, dead-letter queues, job priority, and concurrency control.

• AWS working knowledge. Comfortable with EC2, S3, RDS, SQS, and IAM. Familiar with Docker and basic deployment and environment management.

• Strong written and spoken English. Able to communicate clearly with engineers across disciplines and write precise technical documentation.

Nice to Have

Experience integrating with AI or LLM services (streaming responses, structured outputs, retry patterns); WebSocket or SSE implementation for real-time features; multi-tenant SaaS product experience; GraphQL; OpenTelemetry instrumentation; prior work on developer tools or editor-style products.

Job Description

As part of our role at a leading global insurance company, we are responsible for developing and managing an application to onboard and oversee the company's sales partners, including agents and brokers. This application provides users with a tailored, independent solution, including a required multi-dimensional validity date concept for administering all organizational and contractual sales force data to deliver structured information to many data consumers.

To reinforce our dynamic development team, we are seeking a skilled Backend or Full-stack Developer. In this role, you will collaborate with international cross-functional teams to design, develop, and deploy high-quality software solutions.

Responsibilities

Design, develop, and maintain the application, ensuring high performance and responsiveness.

Write clean, efficient, and reusable code.

Implement new features and functionality based on business requirements.

Participate in system and application architecture discussions.

Create technical designs and specifications for new features or enhancements.

Write and execute unit tests to ensure code quality.

Debug and resolve technical issues and software defects.

Conduct code reviews to ensure adherence to best practices.

Identify and fix vulnerabilities to ensure application integrity.

Work with frontend developers to ensure seamless integration of user-facing elements.

Collaborate with DevOps teams for deployment and scaling.

Design and implement workflow automation using Camunda BPM, integrating it with backend services and ensuring efficient process execution.

Optimize and maintain business process models and workflow orchestration using Camunda.

Troubleshoot and enhance Camunda BPMN workflows, DMN decision tables, and process automation configurations.

Requirements

 Bachelor's degree in computer science, Information Technology, or a related field.

Proven experience as a skilled Backend or Full-stack Developer. Experience in the insurance domain is appreciated.

Strong experience with Spring Boot 3, Java 17 or newer, and Maven.

Experience with PostgreSQL, Jenkins, Sonar, Dynatrace, Kubernetes, Mockito, IntelliJ IDEA, and GitHub repository.

Hands-on experience with Camunda BPM (v7 or v8), including BPMN workflows, DMN decision tables, and REST API integration.

Experience with Angular TS and/or AWS, Kafka is a plus.

Excellent problem-solving and debugging skills.

Strong communication and collaboration abilities to work effectively in a team environment.

1. Relevant Experience required 3 to 5 years.
2. Strong proficiency in python programming language along with expertise in backend development framework such as
3. Django or Flask. (DSA and Design patterns are mandatory).
4. Hand on Experience in REST API development and database such as PostgreSQL.
5. Good knowledge of versions control systems like GIT, Bitbucket
6. Implementation testing strategies such as unit testing (PyTest), integration testing and end to end testing 
7. Basic knowledge of Docker/Podman and Jenkins.
8. Good have if they basic knowledge in Mainframe tech such JCL, and TWs.

💥 What will you do?

As a Backend Engineer, you will

• Create and maintain server-side code
• Designing database schemas to support business requirements
• Building reusable code and libraries for future use
• Troubleshoot and debug applications
• Write unit tests
• Stay up to date with current best practices
• Collaborate with front end engineers
• Optimization of the application for maximum speed and scalability
• Work with stakeholders including the Executive, Product, Data, and Design teams to assist with web-application-related technical issues and support their requirements.

🙋 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 

• 2+ years of relevant work experience as a Backend engineer using Python frameworks like Django, Flask, etc
• Experience with relational databases like MySQL, PostgreSQL
• Good understanding of OOP concepts
• Understanding of code versioning tools, such as Git
• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3.
• Experience writing unit tests for the application is a plus
• Experience with building REST APIs
• Superior analytical, conceptual, and problem-solving skills.
• Strong verbal and written communication skills in English.

Role Responsibilities:

• Development and Maintenance of REST APIs: Lead the creation and management of our RESTful APIs, ensuring top-notch performance and alignment with evolving requirements.
• Proficiency in Coding: We're in search of expertise in Python or equivalent programming languages. Your coding skills will play a pivotal role in delivering high-quality (efficient, reusable, testable, and scalable) solutions.
• Unit and Integration Testing: Apply your expertise to craft unit and integration tests, upholding code quality and reliability.
• Version Control Systems: Proficiency in Distributed Version Control Systems is vital for seamless collaboration during development.
• Elasticsearch Expertise: Having valuable experience with Elasticsearch is a plus, given its critical role in data retrieval and search functionalities.
• NOSQL Database Familiarity: Knowledge of NOSQL databases like Cassandra and MongoDB will be advantageous.
• Message Broker Knowledge: Understanding message brokers, especially RabbitMQ, is beneficial for effective communication within our systems.

Desired Qualifications:

• Experience: 1-2 years of hands-on experience as a Python developer.
• AWS: Proficiency in AWS cloud management and architecting enterprise data solutions.
• Pragmatic Problem-Solving: Recognize when a solution should be streamlined and when creating the right abstraction will lead to long-term efficiency gains.
• Passion for Quality: Demonstrate dedication to producing work of the highest quality and following best practices.
• Agile/Lean Process: Familiarity with Agile/Lean methodologies is a plus, reflecting your adaptability and collaborative spirit.
• Startup Mindset: Embrace the challenges and opportunities of a startup environment, contributing your skills and insights to our growth.
• Debugging and Optimization: Showcase excellent debugging and optimization capabilities to enhance system performance.
• Tech Awareness: Stay updated on emerging technologies and possess a solid understanding of the full product development life cycle.
• UX and Information Architecture: Exhibit excellent knowledge of mobile user experience, information architecture, and industry trends.

Roles & Responsibilities

- Writing good quality code.

- Be able to design ,implement and deploy scalable backend applications on cloud(AWS/Azure).

- Be able to take ownership of projects and deliver them on time.

- Be able to lead a team and mentor junior developers.

Qualifications:

- BE/BTech degree in CS/IT or similar related field.

- 4+ years experience as backend engineer.

- Good knowledge in Python and at least one of the framework - Django, Flask, FastAPI, etc.

- Hands on experience in building microservices applications on AWS/GCP/Azure.

- Good understanding of platforms(Docker, AWS/Azure).

- Must have good understanding of Data Structures/Algorithms/Databases and other CS concepts.

- Experience working in multiple databases and data modelling.

- Experience writing APIs and related technologies like REST, JSON, websockets, grpc etc.

- Should be inquisitive enough picking up any language and frameworks based on need.

- Should be able to design/implement/deploy end-to-end systems.

- Having good knowledge on deploying cloud applications and with Dockers/Kubernetes is a plus.

- Experience building end-to-end analytics systems is a plus.

• Hands-on experience in backend programming languages.
• Experience in Python 3.X & Django is a must. Knowledge of .NET, Java, PHP is an added advantage.

• Hands-on experience in front-end technologies like Angular, jQuery, JavaScript, HTML, CSS, SCSS, etc.

• Experience with leading technical teams and acting as a technical mentor.
• Experience in client communication & reporting to the client-side management team.
• Experience in AWS is an added advantage.

Company Introduction –

• Information Security & Data Analytics Series A funded company.
• Working in cutting edge technologies - Using AI for predictive intelligence and Facial Biometrics.
• Among Top 5 Cyber excellence companies globally (Holger Schulze awards)
• Bronze award for best startup of the year (Indian Express IT awards), only cyber Security Company in top 3.
• More than 100+ clients in India.

Job Description:-

Job Title: Python Developer

Key Requirements:-

• Mine data from structured and unstructured data sources.
• Extract data (text, images, and videos) from multiple documents in different formats.
• Extract information and intelligence from data.
• Extract data based on regular expressions.
• Collect data from structured RDBMS databases.
• Work closely with Project/Business/Research teams to provide mined data/intelligence for analysis.
• Should have strong exposure to core python skills like multiprocessing, multithreading, file handling, data structure like JSON, Data frames, and User Defined Data structure.
• Should have excellent knowledge of classes, file handling, memory manipulations.
• Strong Knowledge in Python.
• Strong exposure to frond end languages like CSS, JavaScript, Ajax etc.
• Should have exposure to requests, Frontera, scarpy-cluster, elastic-search, distributed computing tools like Kafka, Hbase, Redis, Zookeeper, restAPI.
• Should be familiar with *nix development environment.
• Knowledge of Django will be added advantage.
• Excellent knowledge on Web Crawling/Web scraping.
• Should have used scraping modules like Selenium, Scrapy, and Beautiful soup.
• Experience with text processing.
• Basics of databases. Good troubleshooting and debugging skills.

 
Education

   B.Tech, MCA, Computer Engineering