PHP Developer (WordPress Engineer) - (hybrid/ remote/ work from office)

PHP Developer (WordPress Engineer)

Company: Wisetr Technology Pvt. Ltd. ("FunnelKit is one of the brands of Wisetr Technology Pvt. Ltd.")

Website: [hidden] Location: Delhi, Tilak Nagar (hybrid/ remote/ work from office)

Experience: 5+ years + AI mindset

Education: Engineering candidates should only apply with relevant experience with WordPress and WooCommerce plugin/ product development (not theme customization)

Working Days: 5 days - Monday – Friday

Apply: [hidden]

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About FunnelKit

FunnelKit builds powerful no-code funnel and marketing automation products for WooCommerce businesses worldwide. Our mission is to help small businesses grow profitably by giving them the right tools to increase conversions and revenue—without unnecessary complexity.

We are a product-first, customer-driven team that values ownership, simplicity, kindness, and excellence.

Role Overview

This role is ideal for someone who:

Can lead development of our WordPress & WooCommerce product suite as a senior engineer who thinks beyond code

Enjoys solving real customer problems

Has worked on production-level WordPress plugins or SaaS products

Takes ownership of both development and troubleshooting

You'll drive architectural decisions, mentor team members, and shape products that impact thousands of businesses. We're looking for someone who combines deep technical expertise with product thinking—understanding not just how to build features, but why they matter to customers.

You will work closely with Development, Product, QA, and Customer Success teams to build, improve, and support FunnelKit’s core products.

Key Responsibilities

Plugin Development & Product Feature Development

Build and maintain WordPress plugins to extend site functionality and improve user experience

Own architecture decisions for complex features across multiple products

Work with the Product team to convert requirements into high-quality code

Build custom solutions based on real customer use cases

Ensure all features are properly tested and documented before release

Mentor mid-level and junior developers through code reviews and pairing

Lead initiatives that improve developer productivity and code quality

Think creatively about technical challenges—finding innovative solutions

Drive technical standards and best practices for the team

WooCommerce Integration & WordPress Hooks

Develop custom solutions and features specifically for WooCommerce stores using WordPress hooks.

Utilize deep knowledge of WordPress hooks (actions & filters) to extend core functionality and integrate with other plugins.

Troubleshooting & Release Stability

Monitor product behavior after updates and releases

Debug complex cross-system issues and performance bottlenecks

Ensure smooth upgrades and backward compatibility

Perform root-cause analysis to prevent repeat issues

Resolve issues related to plugin conflicts, performance, and compatibility with WordPress and WooCommerce.

Product Improvement & Analysis

Design scalable solutions that work across our product ecosystem

Analyze L2 support tickets to identify patterns and gaps

Collaborate with Product and Engineering teams to implement improvements and evaluate technical feasibility and trade-offs

Git & Code Management

Manage code using Git (commits, merges, releases)

Maintain clean, scalable, and secure codebases

Follow WordPress and WooCommerce best practices

Conduct regular code reviews

AI-Assisted Development

Use Cursor AI for code assistance, security checks, and snippet creation

Improve development speed while maintaining high code quality

Work closely with the development team to ensure smooth integration of plugins with existing systems

Document technical decisions and create knowledge-sharing resources

QA & Test Case Collaboration

Create clear use cases for QA testing

Work closely with QA to ensure all features and fixes are thoroughly tested

Reduce post-release bugs through strong pre-release validation

Internal Support to Customer Success

Assist Customer Success Engineers with technical guidance

Help resolve complex L1 issues when required

Ensure recurring problems are documented and addressed at the product level

Handle and resolve L2 support tickets for FunnelKit Checkout, Cart, and Bump

Debug complex WordPress, WooCommerce, and plugin-related issues

Provide fast, stable, and scalable solutions

Identify recurring issues and propose long-term product improvements

Coordinate closely with Customer Success Engineers

CSS & Template Development

Develop and maintain CSS and templates for FunnelKit products

Ensure responsive, cross-browser compatible designs

Maintain high UI and performance standards

Required Skills & Experience

5+ years of hands-on WordPress development

Strong experience with:

WordPress Core & Plugin Development

WooCommerce internals and its ecosystem (APIs & customizations)

WordPress hooks (actions, filters, and custom hooks)

PHP mastery (expert-level OOP, design patterns and SOLID principles)

Database proficiency - Advanced MySQL skills, query optimization, custom table design

JavaScript, HTML, CSS

Strong debugging and troubleshooting skills to resolve plugin related issues

Security First - Expert in preventing SQL injection, XSS, CSRF; capability checks and input validation

Experience working on product-based WordPress plugins or SaaS

Strong understanding of orders, checkout flows, and extensibility points

Proficient with Git version control and collaboration

Performance Mindset: Experience optimizing slow queries, managing memory, and profiling

Technical Leadership: Code review experience, mentoring ability, architecture decision-making

Communication: Explains complex technical concepts clearly to different audiences

Nice-to-Have Skills

Payment gateway integration and debugging experience

Background processing and job scheduling (Action Scheduler or similar)

REST API design and development

Multi-currency or internationalization experience

Subscription/recurring billing systems knowledge

Contributing to or maintaining open-source projects

Experience building WooCommerce extensions

Experience with checkout, cart, or conversion-focused products

Familiarity with performance optimization and security best practices

Experience using AI tools for development

Candidates with hands-on experience in Agentic AI systems and working with Claude Code will be given preference.

Why This Role is Exciting

Product Impact: Build features that directly impact revenue for thousands of businesses

Cross-Product Thinking: Work across an ecosystem of products, not siloed features

Innovation Encouraged: Find creative solutions to hard problems—we value ingenuity

Real Leadership: Influence technical direction without organizational bureaucracy

Modern Engineering: AI-enhanced workflows, continuous improvement, quality-first culture

WordPress at Scale: Solve interesting challenges in one of the world's largest tech ecosystems

What Success Looks Like

First 3 Months:

Lead your first major feature from design to deployment

Establish yourself as a reliable code reviewer

Identify and fix a significant performance or architectural issue

First 6 Months:

Own a product area and drive its technical direction

Mentor team members with measurable improvement in their skills

Ship an innovative solution that becomes a best practice

First Year:

Drive cross-product improvements that benefit the entire ecosystem

Be the technical leader others consult for complex decisions

Contribute to hiring and growing the engineering team

What We Value

Product-minded engineering: Understanding business impact, not just technical elegance

Ownership mentality: Taking responsibility for outcomes, not just tasks

Continuous improvement: Always learning, always getting better

Knowledge sharing: Writing docs, mentoring others, building team capability

Creative problem-solving: Seeing opportunities others miss, finding better ways

What We Offer

Opportunity to work on globally used WordPress products

Competitive senior-level compensation

High-ownership, low-bureaucracy environment

Collaborative, product-driven culture

Competitive salary based on experience

Long-term growth and learning opportunities

Technical leadership growth opportunities

How to Apply

Provide the details in the attached - [hidden]

Links to significant projects you've led (GitHub, WordPress.org, portfolio)

Brief note on a technical challenge you solved creatively

NOTE: This is a full-time position with the organisation.

FunnelKit is committed to creating an inclusive environment and is an equal opportunity employer. We celebrate diversity and welcome applications from candidates of all backgrounds.