Backend 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:

• He / She candidate must possess a strong technology background with advanced knowledge of Java and Python based technology stack.
• Java, JEE, Spring MVC, Python, JPA, Spring Boot, REST API, Database, Playwright, CI/CD pipelines
• * At least 3 years of Hand-on Java EE and Core Java experience with strong leadership qualities.
• * Experience with Web Service development, REST and Services Oriented Architecture.
• * Expertise in Object Oriented Design, Design patterns, Architecture and Application Integration.
• * Working knowledge of Databases including Design, SOL proficiency.
• * Strong experience with frameworks used for development and automated testing like SpringBoot, Junit, BDD etc.
• * Experience with Unix/Linux Operating System and Basic Linux Commands.
• * Strong development skills with ability to understand technical design and translate the same into workable solution.
• * Basic knowledge of Python and Hand-on experience on Python scripting
• * Build, deploy, and monitor applications using CI/CD pipelines, * Experience with agile development methodology.
• Good to Have - Elastic Index Database, MongoDB. - No SQL Database Docker Deployments, Cloud Deployments Any Al ML. snowflake Experience
• 
  

Role - Node.js Developer

Experience - 3-8 Yrs

Location - Bangalore (WFO)

About the Role

We are looking for an experienced Senior Node.js Developer to build highly scalable, resilient, and production-ready backend systems. In this role, you will lead backend development, collaborate with cross-functional teams, mentor engineers, and drive engineering excellence throughout the software development lifecycle.

If you are passionate about designing cloud-native applications, writing clean and maintainable code, and building robust distributed systems, we'd love to hear from you.

Key Responsibilities

• Partner with Product Owners, Project Managers, and Scrum Masters to understand business requirements and translate them into scalable technical solutions.
• Design, develop, and maintain high-performance backend applications using Node.js and TypeScript.
• Build and maintain RESTful APIs and microservices for large-scale production systems.
• Develop and maintain batch processing and scheduled jobs using Python and Shell scripting.
• Lead backend architecture discussions and provide technical guidance to the engineering team.
• Conduct code reviews, enforce coding standards, and mentor junior developers.
• Own the complete software development lifecycle, including design, development, testing, deployment, monitoring, and production support.
• Collaborate with DevOps teams to improve CI/CD pipelines and deployment processes.
• Design and deploy cloud-native applications using AWS or GCP.
• Implement containerized applications using Docker and Kubernetes.
• Ensure application security, performance, scalability, and reliability by following engineering best practices.
• Participate actively in Agile/Scrum ceremonies including sprint planning, backlog grooming, stand-ups, retrospectives, and release planning.

Required Skills & Experience

• 3+ years of hands-on experience in backend software development.
• 3+ years of experience developing RESTful APIs using Node.js.
• Strong proficiency in TypeScript, JavaScript, JSON, and REST API design.
• Experience developing batch processing solutions using Python and Shell scripting.
• Strong knowledge of relational and NoSQL databases such as MySQL, MongoDB, and Redis.
• Experience with distributed systems and microservices architecture.
• Hands-on experience with Git and collaborative branching strategies.
• Experience building and deploying applications on AWS or Google Cloud Platform (GCP).
• Good working knowledge of Docker, Kubernetes, and container orchestration.
• Familiarity with CI/CD pipelines and DevOps practices.
• Strong understanding of software design principles, security best practices, and scalable architecture.
• Experience leading technical discussions, performing code reviews, and mentoring engineering teams.
• Experience working in Agile/Scrum environments.

Preferred Qualifications

• Experience building highly available and fault-tolerant backend systems.
• Knowledge of performance optimization and application monitoring.
• Strong problem-solving and analytical skills.
• Excellent communication and collaboration abilities.

Why Join Us?

• Work on modern cloud-native technologies and scalable distributed systems.
• Collaborate with talented engineers in a high-impact environment.
• Opportunity to influence architecture and technical direction.
• Continuous learning, ownership, and career growth in a collaborative engineering culture.

Job Title: Mid-Level Backend Engineer

Location: Remote

Type: Full-time or Project Basis

About Us:

At Tese, we are committed to advancing sustainability through innovative technology. Our platform helps SMEs and financial institutions manage their Environmental, Social, and Governance (ESG) goals using AI, IoT, and data-driven insights. We are looking for a skilled Backend Engineer with mid-level experience to join our dynamic team and contribute to building scalable, robust backend systems.

Role Overview:

As a Mid-Level Backend Engineer, you will be responsible for developing and maintaining backend services that power our core platform. You will work closely with our frontend developers, product team, and data scientists to implement solutions that are scalable, secure, and efficient. You will focus on building APIs, managing databases, and optimizing the performance of our services.

Key Responsibilities:

• API Development:
• Design, develop, and maintain RESTful APIs that serve our frontend applications and third-party integrations.
• Ensure high-performance and responsiveness of APIs, while following best practices for security and scalability.
• Database Management:
• Work with both NoSQL (MongoDB) , SQL (PostgreSQL, MySQL) and databases, ensuring efficient data storage and retrieval.
• Optimize database queries and manage migrations, ensuring data integrity and consistency across the platform.
• Microservices and Cloud Infrastructure:
• Develop microservices architecture using Docker and Kubernetes, ensuring that services are scalable and maintainable (Good to have).
• Work with cloud platforms (AWS, GCP, Azure) to deploy and manage backend services, ensuring high availability and fault tolerance.
• Collaboration and Documentation:
• Collaborate with frontend developers, data scientists, and product managers to gather requirements and develop backend solutions.
• Write clear, maintainable code with proper documentation, including technical designs, API specifications, and test cases.
• Performance and Security:
• Monitor backend services to ensure optimal performance, identifying bottlenecks and implementing improvements.
• Implement security best practices for APIs, databases, and backend systems, including authentication, authorization, and data encryption.

Qualifications:

• Education: Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Experience: 3-5 years of experience in backend development, with a strong focus on building scalable and efficient systems.
• Technical Skills:
• Proficiency in backend programming languages such as Node.js, Python.
• Strong understanding of RESTful APIs.
• Hands-on experience with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) databases.
• Familiarity with cloud platforms such as AWS, Google Cloud.
• Knowledge of CI/CD pipelines and version control (e.g., Git).
• Soft Skills:
• Strong problem-solving abilities and the capacity to work independently as well as in a collaborative environment.
• Excellent communication skills, with the ability to explain complex technical concepts to both technical and non-technical stakeholders.
• A strong passion for sustainability and a desire to contribute to impactful projects that drive positive environmental change.

Preferred Qualifications:

The following qualifications are bonus, but not strictly necessary:

• Experience with Docker and Kubernetes for containerisation and orchestration (Good to have).
• Experience working with microservices architecture.
• Knowledge of ESG (Environmental, Social, and Governance) metrics and sustainability (Good to have).
• Familiarity with serverless architectures and API gateways.

Benefits:

• Competitive salary and benefits package and performance bonuses.
• Flexible working hours and remote work options.
• Opportunity to work on cutting-edge technology with a focus on sustainability.
• Professional development opportunities, including access to conferences and training.

How to Apply:

Interested candidates should submit their CV and a cover letter detailing their experience and passion for backend development and sustainability here.

Join Us:

Be a part of a forward-thinking team that is making a real difference in the world. At Tese, you'll have the opportunity to innovate, grow, and contribute to a more sustainable future through technology.

About Our Client

It is a last-mile tech-logistics solution provider for intra-state deliveries based in Bangalore. It offers reliable, affordable, and professional services, structured to serve enterprises.

Our Client aggregates light commercial vehicles for urban logistics and has onboarded 55,000+ truckers on its platform across 14 cities. Our Client works across industry sectors like organized retail, FMCG and e-commerce, distribution and 3PL companies. Some of its clients include Amazon, Flipkart, Bisleri, Vishal Mega Mart, Future Supply Chain, Coca-Cola, Delhivery, and Udaan.

The company offers customized logistics solutions for clients, along with other value-added services such as screened drivers, audited and GPS-enabled vehicles, point-to-point billing, status updates, 24x7 service, and greater efficiency, all at transparent and economical pricing.

Our Client, as a brand, is known as one of the market leaders in the enterprise segment, and first movers to identify and empathize with the underserved urban trucker community, playing a huge role in making them a part of the mainstream economy. This series-B funded tech-logistics company aims to disrupt the primitive $35bn+ urban-logistics industry by leveraging technology and help enterprises to reach consumers faster.

Our Client is India's largest enterprise urban-logistics provider in India, with 55,000+ Light Commercial Vehicles on its platform.

Why Our Client?

1) Young Startup growing and well funded.

What will I do?

- Designing user flows and converting them into logical entities in the code.

- Integration of user-facing elements developed by front-end developers with server-side logic.

- Designing Database schemas.

- Building reusable code and libraries for future use

- Optimization of the application for maximum speed and scalability

- Implementation of security and data protection

- Design and implementation of data storage solutions

What skills should I have?

- 3+ years of experience in Backend Development.
- Language: NodeJs
- Additional knowledge of Python will be a plus
- Understanding of microservices architecture.
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system

- Management of hosting environment, including database administration and scaling an application to support load changes

- Data migration, transformation, and scripting

- Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
- Creating database schemas that represent and support business processes
- Implementing automated testing platforms and unit tests
- Proficient understanding of code versioning tools, such as Git

• Design, implement, and maintain API-based applications and REST services.
• Proficiency with Node JS.
• Must have experience in cloud services Azure Cloud/AWS.
• Familiarity with database technology such as MySQL, PostgreSQL, and MongoDB.
• Develop high-quality, efficient, and scalable code.
• Understanding of Agile methodologies and SCRUM framework Strong debugging, analytical and problem-solving skills.
• Provide technical support during implementation efforts, working with technical team members and with business users as required to provide troubleshooting and solutions to technical issues.

Position Overview

Oracle Apex Engineer with good experience building reports using the latest versions of Oracle Apex

and experience in Apex Upgrade. Should have a good working knowledge of Oracle

Applications(R12).

Skills

1-2 end to end implementation/development project

Strong detail, quality, and solution orientation

5+ years of experience designing and implementing technical solutions that are aligned with

business strategy

5 years of applications development experience with Oracle APEX, Oracle SQL, PL/SQL

5+ years of Oracle APEX experience

5+ years experience in Oracle Databases

5+ years experience using PL/SQL

5+ years of JavaScript, HTML, CSS, and REST services

Oracle APEX 4.2 experience is a must and ability to Upgrade to higher versions

Ability to work on SQL performance issues

Ability to think critically and solve complex issues

Ability to work independently, while engaging the customer and providing information to the team

Strong ability to communicate both verbally and in writing with internal and external teams

Ability to prioritize across multiple projects and meet deadlines

Experience adapting in a dynamic work environment

Experience working in a customer-focused environment

Ability to troubleshooting issue

Proficiency in analysis, design, development, testing, implementation, and maintenance of

applications in Oracle Application Express (APEX).

Excellent conceptual knowledge of Oracle 11g.

Rich experience in writing SQL queries, Views, Materialized views, PL/SQL procedures, functions,

packages, triggers, cursors, collections, Ref cursor, cursor variables, System reference cursor,

Dynamic SQL.

Good knowledge of using PL/SQL Wrappers to protect the PL/SQL procedures and packages.

EXPERIENCE: 7 to 9 years in Java 2 Enterprise server side development. Must have applied knowledge of design patterns needed for building REST APIs and services for performance and scale.

SKILLS:

- Problem Solving and application of Object Oriented principles to development

- REST API development using Java, JAX-RPC,

- Server side development using Java, Spring Boot, Node.js

- Concurrent programming with Java

- Database programming in SQL with Oracle, MySQL or other RDBMs.

- Deployment to AWS and Kubernetes and building with Maven

- Affinity towards server side development

- Ability to understand existing code and re-engineer/re-factor/redesign.

- Written and spoken English communication and articulation.

NICE TO HAVE:

 - Working knowledge of GO Lang and Python scripting

- AWS Certifications

- Working knowledge of Elastic Search based persistence and search

- Secure coding practices

EDUCATION: Bachelor or Master's degree in Computer Science, Software Engineering or Information Technology or related disciplines.