Senior PHP Full-Stack Developer — Remote at Lemon.io

Lemon.io is hiring experienced Senior PHP Full-Stack Developers to work remotely with hand-picked startups in the US and Europe. If you bring 4+ years of commercial development experience and thrive in fast-paced startup environments, this role gives you high-quality projects, direct client communication, and reliable support from a talent marketplace that has already paid out millions to engineers.

Why this role matters

As a Senior PHP Full-Stack Developer you will build, scale and maintain web applications that power early-stage startups. Your work directly impacts product quality, customer experience, and time-to-market—making this an ideal opportunity for developers who want meaningful technical ownership without the overhead of business development.

What Lemon.io Offers

• Competitive pay based on seniority and skills; Lemon.io has paid out over $11M to engineers.
• Project matching so you avoid the client hunt and rate negotiation.
• Flexible schedules with minimal synchronous overlap required.
• No micromanagement or screen trackers—trust and autonomy are core values.
• Direct communication with technically-minded clients.
• Dedicated support from application through onboarding and project matchmaking.
• Access to a global developer community spanning 50+ countries.

Senior PHP Full-Stack Requirements

• Minimum 4 years of software development experience.
• At least 3 years working with PHP in commercial projects.
• 3+ years using a modern frontend framework: React.js, Angular, or Vue.js.
• Experience with Next.js is a plus.
• Proficiency in SQL is preferred; AI-related experience is a bonus.
• Strong architecture, design, and system-thinking skills.
• Advanced English communication and client-facing confidence.
• Self-organization for full-time remote work and quick onboarding ability.

Role Expectations & Day-to-Day

Typical projects are startup-facing web applications: feature development, API design, database optimization, and front-end integration. You’ll collaborate with product managers and engineers, propose architecture improvements, implement features from concept to production, and maintain code health.

• Design and implement backend services in PHP.
• Build responsive front-end interfaces using React/Angular/Vue and Next.js where needed.
• Write and optimize SQL queries and database schemas.
• Participate in code reviews, system design, and client-facing technical discussions.

Alternative Tech Matches

If PHP is not your primary stack but you have 4+ years of commercial experience in other areas, Lemon.io also matches senior developers with roles in React & Node, React & Python, Golang, Rust, mobile (Swift/React Native), MLOps, blockchain, and more.

Hiring Process & What to Prepare

• Watch a short intro (VideoAsk).
• Complete your profile on Lemon.io platform.
• 30-minute screening call.
• Technical interview.
• Feedback and project matching via the platform’s Magic Box.

Note: Lemon.io does not provide visa assistance and does not offer the typical direct-hire benefits. They accept developers from many countries but maintain a list of regional exceptions that change periodically.

How to Apply

If your experience matches the requirements, prepare: your developer profile, portfolio links, resume, and a short video or written pitch. Apply through the listing on We Work Remotely or Lemon.io’s application flow.

Apply link: Lemon.io Senior PHP Full-Stack Developer

Interview Preparation Guide

Possible Technical Questions (role-specific)

• Explain how you would design a scalable PHP API for a multi-tenant SaaS application.
• How do you structure migrations and schema changes in production databases?
• Describe a caching strategy you implemented and why it improved performance.
• How do you optimize SQL queries to reduce response time?
• Walk us through a feature you built end-to-end with React and PHP backend.
• How would you handle backward-incompatible API changes with active clients?
• What testing strategies do you use for backend and frontend code?
• Discuss a time you refactored a legacy system—what was your process and result?

Possible General Questions

• Tell us about a challenging technical problem and how you solved it.
• How do you prioritize work when joining a fast-moving project?
• Describe your communication style when working with remote teams.
• How do you handle disagreements in design or technical direction?
• Where do you see yourself in two years as an engineer?

Suggested Talking Points (for answers)

• Emphasize measurable outcomes: performance gains, reduced latency, increased reliability.
• Describe frameworks and tools you used (PHP frameworks, testing suites, CI/CD).
• Show architecture thinking: trade-offs, constraints, and why you chose a particular solution.
• Explain collaboration: how you worked with PMs, designers, and other engineers.
• Mention mentoring and knowledge-sharing where applicable.

Do’s & Don’ts (Tailored)

Do’s

• Do prepare a few concise case studies from your portfolio.
• Do quantify your impact with metrics (percent improvements, load handled).
• Do practice whiteboard-style system design explanations.
• Do be ready to talk about trade-offs and alternatives.
• Do show flexibility for different tech stacks when needed.
• Do prepare questions about the client’s product goals and team structure.

Don’ts

• Don’t oversell knowledge of tools you haven’t used professionally.
• Don’t neglect to explain why a solution was chosen—context matters.
• Don’t get defensive about past technical decisions; focus on learning.
• Don’t ignore non-technical signals—communication and culture fit matter.
• Don’t skip a short readiness check on timezone overlap expectations.
• Don’t come unprepared for basic architecture questions.

Preparation Checklist

• Update resume and Lemon.io profile with clear role-focused summary.
• Prepare 2–3 portfolio examples and short descriptions (your role, solution, impact).
• Have links to GitHub, live apps, and short video/demo ready.
• Set up a quiet space, reliable internet, and test your mic/camera.
• Prepare a one-minute elevator pitch about your strengths and availability.

Extra Pro Tips

• Record a short 1–2 minute screencast showing a key project or architecture—this stands out.
• Use concrete numbers when describing impact (users, load, response times).
• Demonstrate curiosity—ask clarifying product questions that show product thinking.
• If possible, prepare a small design doc or summary you can share during interviews.

Tips to Work With — Senior PHP Full-Stack Role

1. Overview

The Senior PHP Full-Stack Developer is responsible for designing backend services, building frontend features, and owning delivery on startup projects. Eligibility centers on commercial experience, strong communication, and the ability to onboard quickly.

Core Responsibilities

• Define and implement backend architecture in PHP.
• Integrate front-end code with APIs using React/Angular/Vue.
• Ensure reliability, observability, and performance.

Why it matters

Your role accelerates time-to-market for startups by delivering dependable features and guiding technical decisions—helping teams iterate quickly and capture user feedback.

2. Step-by-Step Process (Application → Delivery)

Application Journey:

• Profile completion and portfolio submission.
• Screening and technical interview.
• Project matching and onboarding.
• Delivery cycles with sprint planning and reviews.

Tools & Documents

• Code repo (GitHub/GitLab), issue tracker (Jira/Linear), CI/CD pipelines, Docker, basic AWS knowledge.
• Documents: resume, portfolio links, brief design documents, test cases.

3. Illustrative Example (Problem → Solution)

Problem: A startup’s order processing API slowed under growth, causing timeouts.

Solution: Introduced query optimization, added indexing, implemented background job processing for heavy tasks, and added caching for frequent lookups. Result: throughput improved by 3x and error rates dropped 70%.

4. Learning & Resources

• Free Intro Course: PHP: The Right Way (online guide) or free PHP/React tutorials on freeCodeCamp.
• Professional Certificate: Coursera’s Full-Stack Web Development with React specialization or a backend-focused certificate (e.g., edX/Pluralsight PHP courses).
• Advanced Study: MSc in Software Engineering or Master’s programs in Computer Science at recognized universities.

Bonus: Sample Answer Excerpt for a Winning Application

Final Notes

Lemon.io is a strong option for senior developers who want high-quality remote projects without spending time on client acquisition. Ensure your profile highlights specific outcomes, be ready for a technical interview, and prepare concise case studies that show measurable impact.