Fullstack Developer

Job Title: Full Stack Engineer (Real-Time Audio Systems) – Voice AI

Location: Remote

Experience: 4+ Years

Employment Type: Full-time

About the Role

We’re looking for an experienced engineer to lead the development of a real-time Voice AI platform. This role blends deep expertise in conversational AI, audio infrastructure, and full-stack systems, making you a key contributor to building natural, low-latency voice-driven agents for complex healthcare workflows and beyond.

You’ll work directly with the founding team to build and deploy production-grade voice AI systems.

If you love working with WebRTC, WebSockets, and streaming pipelines, this is the place to build something impactful.

Key Responsibilities

• Build and optimize voice-driven AI systems integrating ASR (speech recognition), TTS (speech synthesis), and LLM inference with WebRTC and WebSocket infrastructure.
• Orchestrate multi-turn conversations using frameworks like Pipecat with memory and context management.
• Develop scalable backends and APIs to support streaming audio pipelines, stateful agents, and secure healthcare workflows.
• Implement real-time communication features with low-latency audio streaming pipelines.
• Collaborate closely with research, engineering, and product teams to ship experiments and deploy into production rapidly.
• Monitor, optimize, and maintain deployed voice agents for high reliability, safety, and performance.
• Translate experimental AI audio models into production-ready services.

Requirements

• 4+ years of software engineering experience with a focus on real-time systems, streaming, or conversational AI.
• Proven experience building and deploying voice AI, audio/video, or low-latency communication systems.
• Strong proficiency in Python (FastAPI, async frameworks, LangChain or similar).
• Working knowledge of modern front-end frameworks like Next.js (preferred).
• Hands-on experience with WebRTC, WebSockets, Redis, Kafka, Docker, and AWS.
• Exposure to healthcare tech, RCM, or regulated environments (highly valued).

Bonus Points

• Contributions to open-source audio/media projects.
• Experience with DSP, live streaming, or media infrastructure.
• Familiarity with observability tools (e.g., Grafana, Prometheus).
• Passion for reading research papers and discussing the future of voice communication.

Responsibilities:

• Your primary focus will be developing interactive Vue js applications.
• You will ensure that you produce robust, secure, modular, and maintainable code.
• You will coordinate with other team members, including backend developers and UX/UI designers.
• Developing web applications using Vue.js
• Building modular and reusable components and libraries
• Optimising your application for performance

Requirements:

Frontend:

• Proficient with the JavaScript language and its modern ES6+ syntax and features
• Proficient with Vue.js/React framework and its core principles such as components, reactivity, and the virtual DOM
• Familiarity with the Vue.js or React ecosystem, including Vue CLI, Vuex, Vue Router, and Nuxt.js
• Good understanding of HTML5 and CSS3, including Sass
• Understanding of server-side rendering and its benefits and use cases
• Ability to write efficient, secure, well-documented, and clean JavaScript code
• Experience with both consuming and designing RESTful APIs

Backend:

• Experience as a Python Developer for 2+ years
• Expertise in Python framework Django/Flask, creating & use REST API, object-relational mapping (ORM)
• Experience in AWS, GIT, CI/CD Pipelines, and unit testing

Why Deliveroo?

When you first think about Deliveroo, you probably think of getting great food to your house in less than half an hour. Awesome right? But behind the scenes is the real story. This story is one of high growth, huge challenges and an enormous opportunity ahead of us. It began with our founder Will, arriving in London in 2004 and finding it almost impossible to order great food, despite the wealth of incredible restaurants in the city. In 2013 Deliveroo was launched. Fast forward to 2020 and we operate in 12 markets with over 60,000 riders who deliver orders from 60,000 restaurants in over 500 cities worldwide.

We want to be the definitive food company - the app you go to any time you have a hunger pang. We are transforming the way people think about food. We are providing people with limitless access to different cuisines and restaurants, turning cooking from a chore to a choice, and giving people the freedom to eat what they want, when they want, where they want it.

We work with riders, restaurants and consumers. We operate one of the most complex three sided marketplaces in the world and we do this in real time. Millions of customers and thousands of restaurants and riders rely on us to match them within milliseconds. The algorithms behind that marketplace are the secret sauce that allows us to deliver our orders in around 30 minutes.

And we're just getting started.

The scale of the opportunity ahead of us is immense. The global food market is valued at £7.7 trillion but only 1% of it is currently online. Contrast that with the digital disruption of countless other industries - from banking and travel to retail and communications - it's clear that our journey in the food sector has only just begun.

We are already a multi-billion pound company that has grown rapidly. Deliveroo came top in the FT's' list of Europe's fastest growing 1000 companies in 2018, and we were the first company ever to win Deloitte's 'UK Top 50' two years in a row. Yet most of the extraordinary value this company will generate lies ahead of us.

The Role

• Work as part of a full stack product team to develop solutions to ensure optimal experiences for our customers, riders, and restaurants

• Utilise a variety of backend technologies to build scalable products

• You'll take part in decisions related to how we undertake new projects

• You'll gather requirements and scope out projects with the rest of the team

Our skills include:

We want to emphasise that we don’t expect you to meet all of the below but would love you to have experience in some of these areas.

• Pride in readable, well-designed, well-tested software

• 5 to 10 years professional experience writing web-based applications in any language, and a willingness to quickly get up to speed on our stack (Ruby/Rails, Go, Python, Scala, or Rust)

• Experience with TDD environments (RSpec, Minitest, Capybara, Selenium)

• Experience with relational databases (PostGreSQL, MySQL) and key-value stores (Memcache, Redis)

• Experience with front-end web technology, bonus points for React

• Experience with web architecture at scale (20krpm and above)

• Experience with PostGIS, or any geography-heavy applications

• Experience with "NoSQL" data backends (Redis, MongoDB, ElasticSearch)

• Experience solving logistical problems with software

Life at Deliveroo

We are a growing team, with very large impact, seeking to answer some of the most interesting questions out there. We move fast, we’re always looking for new ideas and we’re very transparent about the decisions we make and why we make them.

There are so many questions we need to answer and plenty more we haven’t even encountered. How do data and technology help restaurants to grow as consumer habits change? How can we predict what someone wants to order for dinner long before the idea has even crossed their mind? At Deliveroo these are just some of the tough problems we are solving - and there is no challenge that cannot be yours. No solution is owned by a particular team, which means the scope for growth and personal impact is enormous.

Diversity

We believe a great workplace is one that represents the world we live in and how beautifully diverse it can be. That means we have no judgement when it comes to any one of the things that make you who you are - your gender, race, sexuality, religion or a secret aversion to coriander. All you need is a passion for (most) food and a desire to be part of one of the fastest growing start-ups around. 

Responsibilities

• Use latest processes and technology in order to build scalable, distributed, and

fault-tolerant site/software systems.

• Research and evaluate new methodologies and technologies that improve the quality,

reliability, and performance of the frontend engineering’s site/software development

systems and processes

• Apply usability principles and procedures and optimize builds. Reuse through

documenting common frontend components that save the business time in executing

future projects.

• Emphasize a consumer-focused approach in building sites/software and works with both

senior and junior frontend teams in determining the prioritization and estimation of new

features and improvements.

Requirements/Qualification

• Minimum 6 years experience in software engineering. At least 3 years of frontend

experience working in React with Redux Framework

• Highly proficient in CSS3, HTML5, Javascript. Also proficient in tools like Bootstrap and

Webpack for building products across multiple screen resolutions and browsers.

• Familiarity with cross-browser compatibility issues and demonstrate design and user

interface/user experience skills.

• Excellent time management, multi-tasking and communication skills

Want to make every line of code count? Tired of being a small cog in a big machine? Like a fast-paced environment where stuff get DONE? Wanna grow with a fast-growing company (both career and compensation)? Like to wear different hats? Join ThinkDeeply in our mission to create and apply Enterprise-Grade AI for all types of applications.

Seeking a Full Stack Engineer with high aptitude toward development.

Experience

5+ Years

Location

Hyderabad

Skills

Bachelors/Masters/Phd in CS or equivalent industry experience

5+ years of industry experience in python related frameworks such as Django, Fast API

3+ Industry experience in angularjs/react

Understand the principles of developing cloud native applications

Experience in administering (including setting up, managing, monitoring) application on heroku

Experience in API development using Swagger

Strong expertise with containerization technologies including kubernetes, docker-compose

Implementing automated testing platforms and unit tests

Proficient understanding of code versioning tools, such as Git

Familiarity with continuous integration, Jenkins

Responsibilities

Implement marketplace using DJango and Angular

Design and Implement APIs

Assist in dev ops operations

Identify performance bottlenecks and bugs, and devise solutions to these problems

Help maintain code quality, organization, and documentation

Communicate with stakeholders regarding various aspects of solution.

Mentor team members on best practices