Backend Engineer
Practise for the Backend Engineer interview at Wa.Expert, built from the company's own job descriptions.
Covers: REST APIs, Node.js, PostgreSQL, System Design
Wa.Expert
other · Mumbai, Maharashtra · wa.expert
- 2 open jobs
- 6 interview tests
- from ₹25 a test
Practise Wa.Expert's interview See the open jobs
Overview
Wa.Expert, based in Mumbai, Maharashtra, has posted 2 software jobs in the last 24 months, with 2 in the last 12 months. They have hired for Automation Specialist and Web Development roles, requiring skills such as AI models, Chatbot flows, Integration layer development, Message templates, Node.js, and PostgreSQL. All jobs are based in Mumbai and are onsite.
About Wa.Expert
Wa.Expert builds tools for chatbot development and automation, targeting businesses that use WhatsApp for customer engagement and communication.
Open now
Hiring now: 2 open positions.
- Automation Specialist
Develops chatbot flows, message templates, and integration layers for the WhatsApp Business API.
- Web Development
Develops web applications using Node.js, React.js, and PostgreSQL for features like an expert's dashboard, team inbox, and chatbot builder.
Insights about Wa.Expert's hiring
- Wa.Expert hires most for Automation Specialist roles: 1 of its 2 software jobs in the last 24 months.
- AI models and Chatbot flows appear in 50% and 50% of its job descriptions.
- Its jobs are in Mumbai.
- 100% of its roles are on-site.
- Its busiest month in the last year was October 2026, with 2 new postings.
Hiring trend, last 12 months
| Month | New postings |
|---|---|
| December 2025 | 0 |
| January 2026 | 0 |
| February 2026 | 0 |
| March 2026 | 0 |
| April 2026 | 0 |
| May 2026 | 0 |
| June 2026 | 0 |
| July 2026 | 0 |
| August 2026 | 0 |
| September 2026 | 0 |
| October 2026 | 2 |
| November 2026 | 0 |
Roles they hire for
Skills in demand
- AI models 50%
- Chatbot flows 50%
- Integration layer development 50%
- Message templates 50%
- Node.js 50%
- PostgreSQL 50%
- React 50%
- Webhooks 50%
- WhatsApp Business API 50%
Locations and work mode
On-site: 100%
Experience, levels and pay
- Levels: Entry level (2)
Hiring at Wa.Expert
From the jobs on Wa.Expert's own careers site, and how readyforhires members measure up.
- Open jobs
- 2
- New this month
- 0
- Bar to clear
- Not enough data yet
- Eligible today
- Not enough data yet
Tests their jobs ask for
- Advanced SQL 1 job
- Intermediate REST APIs 1 job
- Machine Learning 1 job
- Node.js 1 job
- React 1 job
How Wa.Expert interviews
The engineering interviews likely focus on building chatbot flows, integration layers, and web application development using Node.js, React.js, and PostgreSQL. Candidates may be tested on their ability to work with the WhatsApp Business API, webhooks, and AI models.
At a glance
- Location: Mumbai, Maharashtra · More companies in Mumbai
- Industry: Other
- Open jobs: 2
- Practice tests: 6
- Roles hiring: Automation Specialist, Web Development
- Interview practice for: Backend Engineer, Frontend Engineer, Data Engineer, AI Engineer, Automation Specialist, Web Development
Wa.Expert interview practice tests
Frontend Engineer
Practise for the Frontend Engineer interview at Wa.Expert, built from the company's own job descriptions.
Covers: React, JavaScript, System Design
Data Engineer
Practise for the Data Engineer interview at Wa.Expert, built from the company's own job descriptions.
Covers: SQL & Databases, Advanced SQL, System Design
AI Engineer
Practise for the AI Engineer interview at Wa.Expert, built from the company's own job descriptions.
Covers: Machine Learning, LLMs & Prompt Engineering, System Design
Automation Specialist
Practice for the Automation Specialist opening at Wa.Expert: questions from its job description on WhatsApp Business API, Chatbot flows, Message templates, Webhooks, and on your CV.
Covers: WhatsApp Business API, Chatbot flows, Message templates, Webhooks, Integration layer development, Shopify, Zoho, Google Sheets, Razorpay, AI models, Automation Specialist fundamentals, Projects on your CV
Web Development
Practice for the Web Development opening at Wa.Expert: questions from its job description on Node.js, React, PostgreSQL, Web Development fundamentals, and on your CV.
Covers: Node.js, React, PostgreSQL, Web Development fundamentals, Projects on your CV
How readyforhires works
Every job lists the tests it needs. Pass them, apply in one tap, and we send the company your verified profile with your scores: no CV in a pile.
More companies
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Frequently asked questions
- Is Wa.Expert hiring?
- Yes: 2 open software engineering jobs on Wa.Expert's careers site at the last daily count, including Automation Specialist, Web Development.
- What roles does Wa.Expert hire for?
- In the last 24 months: Automation Specialist (1), Web Development (1).
- What skills does Wa.Expert look for?
- The skills its job descriptions ask for most: AI models (50%), Chatbot flows (50%), Integration layer development (50%), Message templates (50%), Node.js (50%), PostgreSQL (50%).
- Where does Wa.Expert hire?
- Mumbai (2 postings); 100% on-site.
- How can I practise for the Wa.Expert interview?
- readyforhires has 6 practice tests written from how Wa.Expert interviews: Backend Engineer, Frontend Engineer, Data Engineer, AI Engineer, Automation Specialist, from ₹25 a test.
- How does Wa.Expert interview?
- The engineering interviews likely focus on building chatbot flows, integration layers, and web application development using Node.js, React.js, and PostgreSQL. Candidates may be tested on their ability to work with the WhatsApp Business API, webhooks, and AI models.
- Where is Wa.Expert based?
- Wa.Expert is headquartered in Mumbai, Maharashtra.