Sr.Backend and Infrastructure Engineer

Job Title : API Lead

Experience : 8+ Years

Location : Remote (Laptop pickup required for 2 days from Noida, Hyderabad, Chennai, Pune, or Bengaluru)

Shift : IST (Regular Day Shift)

Role Overview :

We are looking for an experienced API Lead with strong expertise in C#.NET, Azure Cloud, Azure Functions, and Azure Kubernetes Service (AKS) to design, develop, and lead scalable, secure, and high-performance APIs and microservices for cloud-native applications.

Mandatory Skills :

C#, .NET, .NET Core/.NET 6+, Azure Cloud Services, Azure Functions, Azure Kubernetes Service (AKS), REST API Development, Docker, Kubernetes, Azure SQL/Cosmos DB, and CI/CD using Azure DevOps or GitHub Actions.

Mandatory Skills :

• C#.NET (.NET Core/.NET 6+)
• Azure Cloud Services
• Azure Functions
• Azure Kubernetes Service (AKS)
• REST API Development
• Docker and Kubernetes
• Azure SQL and/or Cosmos DB
• CI/CD (Azure DevOps or GitHub Actions)

Key Responsibilities :

• Design and develop RESTful APIs and microservices using C# and .NET Core/.NET 6+.
• Build and integrate solutions using Azure services such as Azure Functions, APIM, App Services, and Storage.
• Deploy and manage containerized applications using Docker and AKS.
• Implement API security using OAuth2, JWT, and Managed Identities.
• Optimize API performance and collaborate with Architecture, DevOps, and QA teams.

Required Technical Skills :

Must-Have Skills :

• Strong expertise in C#, .NET Core, and .NET 6+.
• Hands-on experience with Azure Functions and Azure Kubernetes Service (AKS).
• Strong understanding of REST API architecture and best practices.
• Experience with Docker and Kubernetes concepts.
• Knowledge of Azure API Management (APIM) and Azure PaaS services.
• Experience with Azure SQL Database and Cosmos DB.
• Familiarity with CI/CD pipelines using Azure DevOps and/or GitHub Actions.
• Strong understanding of API authentication and security mechanisms (OAuth2, JWT, Managed Identities).
• Experience with monitoring, troubleshooting, and performance tuning of APIs.

Good to Have :

• Experience with microservices architecture and distributed systems.
• Exposure to Infrastructure as Code (Terraform/Bicep).
• Experience with Application Insights and Azure Monitor.
• Knowledge of Agile/Scrum methodologies.

Role: Senior Software Engineer (SDE III) – AI & Backend

Location: Bangalore

Experience: 5-8 Years

Notice: Immediate – 15 Days

Work Mode: Work From Office

Type: Contract to Hire (CTH)

Role Overview

We are looking for a Senior Software Engineer with strong expertise in backend development and AI systems. You will build scalable platforms, AI-powered agents, and real-time voice applications.

What You’ll Do

● Design and develop scalable backend services using Python

● Build microservices, RESTful APIs, and event-driven systems

● Develop AI-powered agents using LLM frameworks and multi-agent systems

● Work on voice systems using STT/TTS and real-time streaming architectures

● Integrate APIs, vector databases, and RAG-based systems

● Collaborate with cross-functional teams and mentor junior engineers

What We’re Looking For

● 5+ years of experience in software development

● Strong proficiency in Python.

● Experience with microservices and distributed systems

● Hands-on experience with LLMs and agent frameworks (LangChain, AutoGen, etc.)

● Familiarity with vector DBs, embeddings, and cloud platforms (AWS/GCP/Azure)

● Good communication skills and ownership mindset

Nice to Have

● Experience with voice systems (STT/TTS) and real-time architecture

● Exposure to MCP or similar frameworks

● Experience building AI copilots or multi-modal systems

AI Engineer — Vertexcover Labs

Who We Are

Vertexcover Labs is an employee-focused, engineer-run software studio. We partner with fast-growing, funded startups around the world—Rephrase.ai, Dhiwise, Dunzo, Dubdub, Xapo, Arintra etc.—to crack their toughest engineering problems. Everyone is an individual contributor; no management layers. Engineers choose the projects they work on, see each project's P&L, and share directly in the profits.

Whether it's building multi-agent systems for production, scaling ML pipelines across GPU clusters, or shipping RAG-powered products that end-users rely on—we solve hard AI problems for real companies.

A Few Problems We Are Currently Working On

• AI Agents Test-authoring agents that convert natural language into e2e tests.
• Ad-performance agents that learn what works for your brand and generate winning creatives automatically.
• Scale + MLOps Optimise ML pipelines and fix autoscaling by applying queuing theory while juggling CPU / GPU memory contention.
• RAG & Knowledge Systems Design and deploy retrieval-augmented generation pipelines—chunking strategies, embedding models, reranking, and evaluation loops.
• AI Video & Image Processing Build rendering pipelines, diffusion-model integrations, and real-time video processing at scale. You'll own at least one project like these—design, build, iterate.

Signals You're Probably the Right Fit

• Strong in at least one other language (Python, Go, Rust, TypeScript, Java …); happy to learn more.
• First principle understanding of how LLMs, embeddings, vector databases and AI Agents work
• Evidence of shipping real AI-powered software—OSS, side projects, or production features.
• Comfortable navigating the fast-moving AI landscape—papers, new model releases, evolving APIs.
• Clear written & spoken communication; async collaboration is our default.
• Self-directed—you ask for context, not permission.

How We Operate

• Project choice. Engineers vote on which engagements we take.
• Stack agnostic. We pick tools that fit the job, not the résumé.
• Pragmatic craftsmanship. Durable design, no gold-plating.
• Transparent economics. Know what your work is worth, share in the profits.
• Remote-native. Async by default; sync when it helps.

Hiring Process (Lean & Human)

1. 2–3 technical deep-dives with future teammates.
2. 30-minute culture chat.
3. Offer. No LeetCode marathons, no trick puzzles.

We read every application and reply to all candidates.

About Tamasha

Tamasha is building next-generation live, social, and real-time consumer

experiences across gaming, audio, video, and interactive platforms. Our backend

systems power millions of real-time interactions, low-latency data flows, and high

throughput event-driven services.

Role Overview

As a Software Development Engineer III (Backend), you will operate as a senior

individual contributor owning mission-critical backend systems. You will design

scalable architectures, solve complex distributed systems problems, and influence

engineering standards across teams.

Roles & Responsibilities

 Own backend systems end-to-end, from design and implementation to

production reliability and long-term evolution.



Design scalable, fault-tolerant, and low-latency backend architectures for real

time and event-driven use cases.



Lead system design decisions including data models, service boundaries, async

workflows, and scalability strategies.



Build and operate high-throughput services handling millions of events, requests,

or messages per day.

 Own reliability metrics such as p95/p99 latency, uptime, error budgets, and

participate in incident resolution and post-mortems.

Drive architectural migrations including monolith to microservices and

synchronous to asynchronous flows.

 Collaborate with product, frontend, and data teams to translate complex

requirements into robust backend solutions.



Improve developer productivity by contributing to internal platforms, tooling,

CI/CD pipelines, and coding standards.



Mentor engineers through design reviews, code reviews, and technical guidance

without direct people management.



Proactively identify performance bottlenecks, cost inefficiencies, and scalability

risks and resolve them at the system level.

Tech Stack

Backend: Node.js (NestJS / Express), Golang, Java

Databases: PostgreSQL, MySQL, MongoDB, Redis

Messaging & Async: Kafka, SQS, RabbitMQ, Pub/Sub

Real-time: WebSockets, Server-Sent Events

Cloud & Infra: AWS / GCP, Docker, Kubernetes

Observability: Prometheus, Grafana, OpenTelemetry

What We’re Looking For

• 5+ years of backend engineering experience

• Proven ownership of production systems at scale

• Strong understanding of distributed systems and async architectures

• Experience handling production incidents and system reliability

• Ability to independently design and evolve backend systems

Role & Responsibilities

You will be working with the Rust compiler and will be responsible for compiling to alternate targets such as WebAssembly

You will be exposed with TDD for unit testing individual functions and integration testing for testing publicly exposed APIs

Working with a Git style workflow where every commit deploys to a stagingenvironment and merged pull requests deploy to production

Setting up CI/CD pipelines for testing and deployment (canary, staging) using Github actionsaccording to project needs

Developing software in Rust

Maintaining and improving existing rust codebases.

Skill set Key words

Java17, Java Spring Boot, Kubernetes/AKS/Docker(Knowledge), Microservices, (MongoDB/DynamoDB)

Role and Resposbilities :

•  Hands on experience in Java back-end development and skills with Spring-boot framework

•  Real life experience with Continuous Delivery principles and related tools (Kubernetes, AKS, Docker)

•  Expertise with Microservices design

•  Understanding of the Design Patterns, Architectural Blueprints, UML and Application Design

•  Experience in stateful application and web sessions

•  Experience with MongoDB, DynamoDB

•  Excellent communication skills and an ability to work in a team

⌛️ Where will you spend your time?

• Early-stage AI SaaS product with the potential to disrupt the Product Analytics space
• Relentlessly improving performance, scalability, and maintainability on top of being responsible for entire products
• Owning the design process, implementation, and verification of framework components leveraging standard software engineering methodologies
• Translating functional and technical requirements into detailed architecture and design.

🤝 What makes you a good fit?

• 0-2 years of experience in product development, architecture, data structures, algorithms and design.
• Experience with API integrations, database design, and backend frameworks on NodeJS and/or Python
• Experienced with an agile team environment and you prefer being a self-starter.

👀 What process do we follow?

• The whole process is designed so that it can wrap within 2 weeks
• Application: We will keep it simple. You can apply directly through this link. All we ask for is a Resume and a couple of lines around the motivation for the position you are applying for. Additional Portfolio links such as Github, Medium or a Personal website are welcome but not mandatory.
• Screening: We will screen your profile and get back with a decision within 72 working hours.
• Interviews: We will have 3 rounds of technical interviews and 2 rounds of cultural fitment interviews.
• Offer Rollout: If all looks well, we will pop a bottle of champagne.

❤️ Well Being, compensation and how we behave when no one is watching?

We care about your well-being. Along with excellent health insurance, we offer flexibility to work how you want to. We push for physical well-being and in addition to internal health sessions, you get a complimentary annual gym membership.

We assign dedicated work hours exclusively to learning & development initiatives. We respect your weekends and in terms of work hours, we believe in deliverables over anything else. We regularly host team-building sessions, off-sites and encourage discussions around mental well-being and physical well-being over everything else. Most importantly, when our chips are down, we behave the way a family would.

We admire talent and believe in rewarding people for their input. We understand that compensation is an important factor. Our compensation will be respectful to your situation, and the whole process will be transparent from the very minute we speak to you.

Most of us have grown up in a meritocratic culture where actions speak louder. We grew up saying yes to a lot of things outside of our comfort zone and we want to maintain the same without any compromise. When actions speak, we love to celebrate and amplify bold moves. We don’t have answers to a lot of questions and when we falter, we will acknowledge our missteps. There are no closed doors in the way we work. At the end of the day, we are human beings and we will ensure that you can proudly call Crunchit your home.

🍰 What gives you brownie points?

You demonstrate learnability. The founders have spent their years building things mostly independently and at times relying on the collective hive mind of peers. If you are willing to learn and dare to say yes to things that lie out of your comfort zone, you’ll love the growth and transformation.

🏡 Where will you work from?

We are operating out of Central Indiranagar, Bangalore. We are firm believers in "when we sit together on a table, we move mountains". So you will be required to come to our office [WFO], which we have designed with a lot of love and affection :)

We are looking for an experienced Node.js Developer with at least 3-years of experience. In this role, you will be responsible for developing and maintaining server-side applications and building scalable applications using Node.js. It is a WFH/Remote, full-time position.

Responsibilities

• Design and develop RESTful APIs using Node.js
• Build and maintain high-performance, reusable, and reliable code
• Write unit and integration tests for all code changes
• Developing and maintaining all server-side network components
• Designing customer-facing UI and back-end services for various business processes
• Collaborate with cross-functional teams to define, design, and ship new features
• Optimize application performance and ensure scalability and reliability
• Troubleshoot and debug issues in the application codebase
• Documenting Node.js processes, including database schemas, as well as preparing reports

Qualifications

• 3+ years of experience designing and/or developing applications using node.js
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks
• Strong experience with ExpressJS or Restify frameworks
• Very well understanding of Javascript, Browsers, real time communication
• Experience with ReactJS & MongoDB is a plus
• Strong fundamentals in OOPS, Data structured and Design Patterns
• Knowledge of front-end technologies such as HTML5 and CSS3