MEAN Stack 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 Title: Backend Developer

Experience: 2+ Years

Location: Bangalore, India

Elocity is a cleantech start-up striving to make the world a better place through technology innovations. We are building a global infrastructure for making the transition to electric vehicles viable, affordable, and

sustainable by working closely with the utilities, governments, and public.

Headquartered out of Canada, we are a team of highly specialized domain experts and problem solvers enabling utilities, public and private sector entities to successfully manage the demands of electric vehicle charging and its infrastructure needs to pave the way for electromobility in future.

To know more visit https://elocitytech.com/

Responsibilities:

• Determines technical feasibility of features or solutions by evaluating problem, customer

requirements, possible solutions and technology requirements.

• Exercises judgement in prioritizing tasks and selecting methods and techniques for obtaining solutions.

• Create low-level design of modules of a software application through proper documentation and

diagrams.

• Develops software solutions by studying requirements, clarifying customer/user needs, analysing data

and processes and following established software development practices and processes.

• Develops proof of concepts for technical evaluation and early customer feedback

• Updates and shares knowledge by studying state-of-the-art development tools, programming

techniques, and computing technology; reading professional publications

• Networks with internal and external personnel in own area of expertise.

Skills:

• Good command in JavaScript/TypeScript. Knowledge of Java/Python will be a plus.

• Experience in Debugging/troubleshooting TypeScript code.

• Experience in API development (REST/GraphQL etc)

• Experience in development of Web and Mobile(android/iOS) applications

• Exposure of Parallel and Asynchronous programming

• Experience in writing Unit tests (Jest or any similar framework)

• Should be proficient in relational Database concepts (Postgres etc.)

• Knowledge of Non-relational Databases would be a plus.

• Good Understanding of Object-Oriented Programming Concepts.

• Good Understanding of Design Patterns.

• Good command of Data structures, Algorithms and Complexity.

• Good at problem solving and analytical skills.

• Experience with Source Code Versioning systems (Git etc)

• Understanding of Micro services Architecture would be a plus

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

Responsibilities

• 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.

• Implementing effective security protocols, data protection measures, and storage solutions.

• Running diagnostic tests, repairing defects, and providing technical support.

• Documenting Node.js processes, including database schemas, as well as preparing reports.

• Recommending and implementing improvements to processes and technologies.

• Keeping informed of advancements in the field of Node.js development.

Requirements

• At least 1 - 3 years experience as a Node.js developer.
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
• Knowledge of front-end technologies such as HTML5 and CSS3.
• Superb interpersonal, communication, and collaboration skills.
• Exceptional analytical and problem-solving aptitude.
• Great organizational and time management skills.
• Availability to resolve urgent web application issues outside of business hours.

Key Skill

Node.Js, Object Oriented Programming, Java Script, HTML/HTML5, CSS/CSS3

• Strong proficiency in MySQL database administration, migrations /up-gradation, patching, cloning, capacity planning, designing, and automation of database tasks.
• Good experience with the latest versions of the database
• In-depth experience configuring database replication on multiple versions
• Strong experience in Monitoring, DB Performance Tuning, DB Availability, DR, Security, Storage
• Analyzes and provides recommendations to optimize the database for improved performance, manageability, and scalability
• Expertise in enterprise backups, recovery, and performing point-in-time recovery Experience in deploying and integrating PM tools
• Experience in data partitioning and encryption
• Knowledge of de-facto standards and best practices in MySQL and MongoDB
• Proficient in writing and optimizing SQL statements and Knowledge of MySQL features, such as its event scheduler
• Familiarity with other SQL/NoSQL databases such as PostgreSQL, MongoDB, etc.
• Knowledge of limitations in MySQL and their workarounds in contrast to other popular relational databases
• Proficient understanding of code versioning tools such as Git / Mercurial / SVN

Backend Developer

• NET Core /MVC
• Web API Framework
• Windows Azure PaaS

Are you looking to make a real difference in Zibew’s Mission to empower pharmacy chains, hospitals, and healthcare institutions with innovative software that significantly improves patient experience? Do you want to work on cutting edge cloud technologies and build highly scalable software?

Zibew, a Singapore based Start-up, with Engineering headquarters in Hyderabad, India is looking for talented individuals to contribute to the next generation of our products, which incorporate features such as Artificial Intelligence and Natural Language Processing. Zibew has a customer base in ASEAN countries and now looking to onboard customers in the AMERICAS region. We are a fun team that likes to get things done (we ship as frequently as every week!), where engineers are empowered to innovate. If you are an engineer who has a keen eye for scale, performance, and reliability, this is a great opportunity for you.

• As a Backend Developer, you would be working on building the core platform of our products such as the Online Pharmacy Platform.
• As a Backend Developer, you would be required to develop highly scalable Web APIs for our Mobile Apps
• As a Backend Developer, you would be working on integrations with third-party systems such as Payment Gateways, CRM Systems, and ERP Systems.
• As a Backend Developer, you would be working alongside our Data Sciences Team and Product Managers to build cutting edge Artificial Intelligence-based systems for healthcare

• Minimum of 2 years of experience in C# Programming
• Should have experience in ASP.NET Core and Web APIs
• Must have proven positive attitude towards taking challenges
• Experience in AI technologies such as TensorFlow, Deep Learning is preferred but not mandatory.
• Must have proven the ability to learn fast and deliver results under pressure.

• At Zibew, we hate micromanagement or any sort of constant interference. We have an open-door policy.
• We empower employees to take technical decisions. We understand sometimes innovation can fail but we back the employees to try and innovate.
• We follow flexible timings.
• We love individuals who ask questions and constantly pushing for more innovation.
• We don’t have people managers. We do have technical leads for each stream.
• We obsess about quality and user-experience and respect those individuals who pay at most attention to quality and user experience.