Backend Engineer

About VerbaFlo.ai

VerbaFlo.ai is a fast-growing AI SaaS startup revolutionizing how businesses leverage AI-powered solutions. As a part of our dynamic team, you’ll work alongside industry leaders and visionaries to drive innovation and execution across multiple functions.

Role Overview

We are looking for a Senior Backend Engineer to design and develop user-friendly, scalable, and high-performance web applications. This role requires deep expertise in backend technologies, attention to detail, and the ability to collaborate with cross-functional teams.

Responsibilities

• Design, develop, and maintain scalable backend systems, APIs, and data pipelines.
• Collaborate closely with frontend engineers, product managers, and AI teams to deliver cohesive features and seamless user experiences.
• Ensure the reliability, security, and performance of backend systems.
• Write clean, maintainable, and efficient code using modern backend practices.
• Implement automated testing, CI/CD workflows, and infrastructure as code (where applicable).
• Own the end-to-end lifecycle of backend features, from architecture to deployment.
• Monitor production systems and resolve performance and scalability issues.
• Contribute to architectural decisions and help evolve our engineering best practices.

Requirements

• 4–6 years of experience in backend development in startups, preferably in SaaS or AI-driven products.
• Proficiency in Node.js, Python, or Go
• Deep understanding of RESTful API design.
• Strong experience with databases: PostgreSQL, MongoDB, ElasticSearch.
• Exposure to message queues, job schedulers, or event-driven architectures (e.g., SQS, Celery, etc).
• Familiarity with cloud platforms like AWS, GCP, or Azure and containerization tools (Docker, Kubernetes).
• Experience with Git, CI/CD tools, and writing unit/integration tests.
• Strong problem-solving skills and a mindset geared toward performance and security.
• Excellent communication and collaboration abilities.

Why Join Us?

• Work directly with top leadership in a high-impact role.
• Be part of an innovative and fast-growing AI startup.
• Opportunity to take ownership of key projects and drive efficiency.
• A collaborative, ambitious, and fast-paced work environment.
• Perks & Benefits: gym membership benefit, workation policy, and company-sponsored lunch.

If you’re looking for an exciting role that combines strategy, execution, and leadership exposure, we’d love to hear from you!

We are hiring a Node.js Developer to build fast, scalable backend services and APIs.

Responsibilities

• Build REST and GraphQL APIs with Node.js, Express and NestJS
• Design data models in MongoDB and PostgreSQL
• Write clean, tested TypeScript
• Improve service performance, caching and reliability

Requirements

• 1+ years of backend development with Node.js
• Experience with Express or NestJS
• Solid understanding of databases and async programming

Technical Expertise

• Proficiency in Node.js or Python – Hands-on experience with backend development frameworks

and best practices.

• Expertise in SQL/NoSQL Databases – Strong experience with MySQL, PostgreSQL, MongoDB, or

DynamoDB.

• ElasticSearch & API Development – Strong knowledge of REST APIs, ElasticSearch, and high-

availability system design.

• Cloud & DevOps – Hands-on experience with AWS, Kubernetes, Docker, and CI/CD pipelines.

• Data Structures & Algorithms – Strong command over data structures, algorithms, OOD, and

design patterns.

• Version Control & Deployment – Experience with Git, GitHub Actions, and other deployment

systems.

• High-Performance Systems – Implemented solutions that handle high availability, concurrency,

and low-latency requirements.

Key Responsibilities

• Design, develop, test & deploy scalable applications, APIs and features

• Contribute to architecture and distributed system design

• Develop high-quality, maintainable and well-tested code

• Improve system performance, reliability, monitoring and scalability

• Collaborate with Product, Design, Operations & Data teams

• Understand warehouse workflows and translate them into technical solutions

• Mentor junior engineers and contribute to engineering best practices

🔹 Required Skills

✅ 8+ years of software engineering experience

✅ Strong Full-Stack development experience

✅ TypeScript, Node.js, GraphQL & React

✅ AWS / Cloud experience

✅ Strong API & distributed systems experience

✅ Excellent debugging and problem-solving skills

Good to Have: Experience in Supply Chain, Logistics, Warehouse Management or Operations technology.

🛠️ Tech Stack: AWS | TypeScript | Node.js | GraphQL | React

• 6+ years of experience in software development with strong expertise in Java (8+), JavaScript, HTML, CSS, PL/SQL.
• Hands-on expertise in frameworks and tools: Spring Boot, ReactJS, NodeJS, REST, SOAP.
• Version Control: Proficient in Git.
• Backend & Databases: Experience with Oracle and Postgres DB (Shining Stars).
• CI/CD Tools: Skilled in Jenkins, GitHub, TDD/BDD.
• Testing Tools: Practical experience with ReadyAPI, Postman, Jest, JUnit.
• Cloud Technologies: Exposure to OCI, Azure, AWS.
• AI Tools: Familiar with GitHub Copilot.
• Containerization & Architecture: Proficient in Docker, Kubernetes (K8s), Microservices, Microfrontend.
• Nice to Have: Test automation experience with Selenium, Java Cucumber, and Kafka

About the Role

SwitchKart is on a mission to make technology more accessible and more sustainable — we're in the business of recommerce, giving old smartphones a second life, cutting down e-waste, and extending the lifecycle of every device we touch.

We're looking for a Senior Full Stack Developer to help us build and scale the ecosystem of platforms powering this mission — from our procurement app to our retailer app, pricing engines, and warranty systems. You'll take ownership of complex features end-to-end, mentor junior engineers, and make architectural decisions that shape how we grow.

What You'll Do

• Own Features End-to-End: Design, build, and ship full stack features across our procurement, retailer, pricing, and warranty platforms — from database schema to UI polish.

• Drive Architecture: Make key technical decisions on system design, scalability, and code structure as our ecosystem of apps grows.

• Build AI-First: Design and build systems with AI at the core — not bolted on. Think about where AI can automate, assist, or enhance the products you're building from day one.

• Build Scalable Architecture: Build and monitor a highly performant, failure-resistant platform — we take pride in doing this with a small, high-ownership team.

• Automate and Integrate: Develop tools that automate our integration processes and build data pipelines across our app ecosystem.

• Foster Technical Excellence: Champion unit and integration testing and lead meaningful code reviews across the team.

• Prototype and Validate: Create interactive prototypes to prove out technical concepts and participate in pilots for new initiatives.

• Mentor the Team: Guide junior developers through code reviews, pairing, and technical direction.

• Report Upward: Provide regular updates to management on milestones, risks, issues, and mitigation plans.

• Collaborate Cross-Functionally: Work closely with product and design to translate requirements into robust technical solutions across multiple products.

What We're Looking For

Must Have

• 4+ years of full stack development experience

• Strong proficiency in React and Node.js

• Solid experience with PostgreSQL or MySQL — schema design, query optimisation

• Experience designing and scaling production systems

• Experience deploying and managing applications on a cloud platform (AWS/GCP or similar)

• Comfortable owning a feature from concept to deployment

• Strong debugging and problem-solving skills

Good to Have

• Experience mentoring or leading junior engineers

• Track record of driving scalability and time-to-market in past cloud architecture decisions

• Exposure to CI/CD pipelines

• Experience with Docker, NoSQL databases, or distributed caching

• Experience integrating third-party REST/SOAP APIs

• Experience in a fast-moving startup environment

Why SwitchKart

• Real ownership over architecture and technical direction.

• Access to the latest AI coding agents and tools — we invest in keeping our engineers on the cutting edge.

• Work on a genuinely differentiated business with measurable impact.

• Be part of a lean team where your decisions shape the product.

• Opportunity to mentor and grow the engineering team.

Role Description

Software Engineer is a full-time role based in Hyderabad with Onsite work arrangement. This role involves designing, developing, and maintaining back-end services and APIs, ensuring high performance, scalability, and security across platforms. The engineer will participate in architecture discussions, code reviews, and technical decision-making, collaborating closely with product owners, QA, and cross-functional teams. Daily responsibilities include writing clean, maintainable code, troubleshooting complex issues, improving system performance, and contributing to best practices, documentation, and engineering standards. The role also includes mentoring less experienced engineers and supporting continuous improvement in development processes and tooling.

Key Requirements/Skills

4-7 years of overall experience in software development with strong expertise in building scalable web & mobile applications.

• Strong technical decision-making ability, including architecture design, technology selection and implementation of best practices.
• Front-end expertise: Strong experience in React, JavaScript, TypeScript, NextJS and building responsive and user-friendly UI/UX.
• Back-end development: Hands-on experience with Node.js, Express JS, Nest JS, RESTful APIs, API design, and server-side architecture.
• Databases : Good Hands on Exprience in both SQL(PostgreSQL Preferred) & No SQL Databases
• Gen AI Expertise: Experience in building RAG & LLM Systems, implementing AI/ML models and integrating AI-based solutions to solve business problems. Expereince with Langchain, langgraph and Vector DBs, Voice AI(STT, TTS) Models and experience in using Open AI Tools (Calude, Cursor, etc.)
• Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
• Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
• Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
• Strong communication skills to effectively interact with technical and non-technical stakeholders.
• Experience working in high-compliance environments such as healthcare systems is a plus.
• Certifications in AWS & Other skills and technologies will be an added advantage.

Educational Qualification

• B.Tech / M.Tech in CSE/IT/AI&ML only from a recognized university/college. 

We are looking for a Senior Full-Stack Developer with strong experience in modern web and mobile application development.

Requirements:

* 4+ years of full-stack development experience

* Strong Node.js, TypeScript and React.js

* Hands-on React Native experience

* Strong PostgreSQL, Redis and REST API knowledge

* Experience with WebSockets and real-time systems

* Good knowledge of AWS, Docker and CI/CD

* Experience with third-party API integrations

* Strong understanding of scalable architecture and application security

* Experience with GPS/geolocation or real-time applications is a plus

* Strong problem-solving and debugging skills

* Ability to work independently and deliver within tight timelines

* Experience taking applications from development to production

Preferred: Experience in taxi, logistics, delivery, marketplace or booking platforms.

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.

We are looking for an experienced Senior Full-Stack Developer to join our engineering team in Hyderabad. This is a hands-on role for someone with strong experience in Node.js, Angular, PHP, MySQL, and Redis, along with working knowledge of Python, API development, automation testing, third-party integrations, and modern engineering practices.

The ideal candidate should be comfortable owning features end-to-end across frontend, backend, APIs, databases, integrations, testing, and production support.

Key Responsibilities

· Design, develop, test, and maintain scalable web applications using Node.js, Angular, PHP, MySQL, and Redis.

· Build and integrate REST APIs, third-party platforms, external services, and multiple service providers.

· Work with Postman for API development and testing, Playwright for end-to-end automation testing, and Python for scripting or supporting services.

· Troubleshoot application, API, database, integration, and production issues.

· Participate in technical design, architecture discussions, code reviews, and mentoring.

· Write clean, secure, maintainable, and well-tested code with a focus on performance and scalability.

Required Skills & Experience

· 5+ years of professional software development experience.

· Strong hands-on experience with Node.js, Angular, TypeScript, PHP, MySQL, and Redis.

· Strong experience with REST APIs, third-party integrations, external systems, authentication, and API security.

· Good working knowledge of Python, Postman, Playwright, Git, HTML, CSS, and JavaScript.

· Experience with database design, SQL optimization, caching, debugging, unit testing, and production troubleshooting.

· Good understanding of software architecture, application security, performance, scalability, and maintainability.

· Strong problem-solving, ownership, and communication skills.

AI-Assisted Development

We are looking for developers who actively use modern AI tools such as GitHub Copilot, ChatGPT, Claude, Cursor, or similar tools to improve development speed and quality.

Candidates should be comfortable using AI for coding, refactoring, debugging, testing, understanding existing codebases, API/SQL development, documentation, code reviews, and automating repetitive tasks, while maintaining strong engineering judgment, security, and code quality.

Good to Have

Experience with CI/CD, AWS/Azure, microservices, Linux, and monitoring/logging tools would be an advantage.

What We Are Looking For

We are looking for a strong hands-on engineer who can independently own technical problems, work across the full stack, contribute to architecture decisions, and collaborate effectively with an international team.

The candidate must be willing to work from our Hyderabad office during UK business hours.