SDE 2 (Chatbot)

Location: Bengaluru,Karnataka,India

Exotel is the emerging market’s leading full stack customer engagement platform and business-focused virtual telecom operator. Incorporated in 2011, Exotel’s cloud-based product suite powers 50 million daily engagements across voice, video and messaging channels. Exotel powers unified customer engagement to over 6000 companies in 60+ countries, including India, SE Asia, the Middle East, and Africa. Today, some of the fastest-growing companies in the emerging markets (Ola, Swiggy, Flipkart, GoJek, Byju’s, Urban Company, HDFC Bank, Zomato, Oyo, etc.) manage their customer engagement with Exotel’s suite of a communication APIs, Ameyo’s omnichannel contact centre (merger), and Cogno AI‘s conversational AI platform (acquisition) over the cloud. They’re a $100 million Series D funded company.

Exotel engineering solves some really cool infrastructure level problems with the goal of ensuring no one misses a call or an SMS.

• Our focus is on building a very fault-tolerant, loosely coupled, scalable and real-time distributed system
• We are generally agnostic of language, technology or tools. Currently, our tech stack is built on Golang, Node.js, Ruby, Java and PHP. We use Aerospike, MySQL as data stores, ElasticSearch for search and Beanstalkd for queuing
• We emphasize a lot on clean abstractions of code, loosely coupled services and good coding practices
• We are very strong believers in "you built it, you own it!". And running a distributed system is very different from just building one!
• We are crazy about the high availability

• Develop/improve Exotel's distributed messaging stack.
• Build fault-tolerant, scalable and real-time distributed VoIP system - Writing high performance, reliable and maintainable code
• Effectively work in a collaborative and agile team environment - Support team with timely analysis and debugging of operational issues.
• Be on the rotational on-call roster to handle operational issues

Must Haves

• Bachelor or Master's degree in computer science or equivalent.
• Good knowledge of one of the OOP languages: Golang (preferred) / PHP (preferred) / Ruby / Python / C++
• Good understanding of data structures, multi-threading and concurrency concepts.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Team player, flexible and able to work in a fast-paced environment.
• A "DevOps" mindset. You own what you will develop.
• Experience: 2-4 years

Good to Haves

• Familiarity of 3-Tier, microservices architecture
• Familiarity with RESTful services
• Familiarity with developing Linux-based applications, networking and scripting
• Familiarity with different data stores, data modelling, SQL & NoSQL databases
• Familiarity with elastic search queries and visualization tools like grafana, kibana
• Familiarity with networking fundamentals: Firewalls, Proxies, DNS, Load Balancing, etc.
• Experience in the development of cloud telephony systems (CPaaS) is a plus