Back End Developer

Who We Are

Faxtor (www.faxtor.in) builds custom ERP and CRM software for Indian SMEs — sales

automation, operations tracking, workflow management, and more. We work across multiple

industries including manufacturing, real estate, education, lending, and export businesses.

We don't resell off-the-shelf tools. We build things that actually fit the way a business works —

fast, on a proprietary delivery platform we've built in-house.

Role Description

We're hiring a Backend Developer to build and maintain the core logic of our ERP/CRM platform in PHP, and to own the integrations layer — payment gateways, WhatsApp, email, Aadhaar/eKYC, digital signatures, and AI-powered features. This isn't repetitive CRUD work — every client is different, and a good chunk of the job is wiring up real-world APIs correctly and reliably.

What You'll Do

• Build and maintain backend logic and APIs in PHP
• Design and optimize MySQL schemas and queries across multiple client projects
• Use Redis for caching, queues, and session management
• Integrate and maintain WhatsApp Business API workflows — notifications, automation, two-way messaging
• Integrate transactional email and automation triggers
• Integrate payment gateways end-to-end — webhooks, reconciliation, refunds, failure handling
• Integrate Aadhaar/eKYC validation APIs
• Integrate digital document signature (e-sign) APIs
• Build AI-powered features into the product — calling LLM APIs (OpenAI, Anthropic, or similar) for automation, document processing, or assistive workflows
• Work with the frontend team and client-facing team to ship complete features, not just backend pieces

You're the Right Fit If...

• You have strong, hands-on PHP experience — you understand the language, not just a framework
• You can design a MySQL schema that holds up as data and usage grow
• You've used Redis for more than basic caching — queues, rate limiting, sessions
• You've integrated at least one payment gateway end-to-end, not just followed a tutorial
• You've worked with Aadhaar/eKYC or e-sign APIs — or you're confident reading unfamiliar government/compliance API docs and getting it right
• You've built something real using an AI API — a chatbot, document automation, an assistive feature, anything shipped
• You can work across multiple live client projects without losing track of what's where

Backgrounds that fit well:

• Backend developer at a software services or product company
• Full-stack developer who has owned backend/integration work
• Developer with fintech or govtech exposure — payment gateways, KYC, and e-sign are common there

What We Offer

• Compensation as per industry standards — based on your experience and skill
• WeWork Koramangala, Bangalore (open to remote for strong candidates)
• Direct access to founders and the tech team — fast decisions, no bureaucracy
• Real integration work across payment, government, messaging, and AI APIs — not one repetitive stack
• Growing team where your code ships and is used immediately

Requirements added by the job poster

• 2+ years hands-on PHP development experience

• Working experience with MySQL and Redis

• Hands-on integration experience with at least one payment gateway

• Experience integrating WhatsApp and/or email automation APIs

• Experience with Aadhaar validation or digital signature/e-sign APIs is a strong plus

• Experience building with AI APIs (OpenAI, Anthropic, or similar)