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Senior Full-Stack Developer – Remote Contract Job Opening In Singapore, Singapore – Now Hiring Twine


Job description

This freelance contract role is ideal for an experienced full-stack developer ready to drive the evolution of a web platform currently in its alpha/beta phase.

The project centers on refining user onboarding, campaign creation, payments/escrow, and performance tracking for small and medium-sized businesses and non-technical users.

You will review and optimize a React/Vite frontend and Node/Express backend with PostgreSQL, enhance UI/UX for two user types, streamline flows, and implement new features for the next release.

The position requires close collaboration with product leads, improving dashboards, integrating payment logic, optimizing deployment pipelines (Vercel/Render/GitHub Actions), and ensuring the platform is responsive and scalable.

The ideal candidate is self-motivated, delivers weekly progress updates, and produces maintainable, well-documented code.

Deliverables

  • Audit and optimize existing React/Vite frontend and Node/Express backend

  • Enhance UI/UX for both business and promoter user types

  • Eliminate redundant flows and improve onboarding and campaign creation processes

  • Integrate and test payment/escrow logic (Stripe, Paystack)

  • Improve dashboards for clarity and actionable insights

  • Optimize deployment and CI/CD pipelines (Vercel, Render, GitHub Actions)

  • Ensure mobile-first, responsive design and scalability

  • Collaborate with product leads and provide regular progress updates

  • Implement monitoring and error tracking (Sentry, Datadog)

  • Deliver clean, maintainable, and well-documented code

Requirements

  • Proven experience in full-stack development with React, , and PostgreSQL

  • Strong understanding of modern UI/UX principles and mobile-first design

  • Experience with payment integrations (Stripe, Paystack) and SaaS platforms

  • Familiarity with CI/CD pipelines and deployment tools (Vercel, Render, GitHub Actions)

  • Knowledge of monitoring tools (Sentry, Datadog) is a plus

  • Ability to work independently and communicate progress effectively

  • Experience with ad-tech, influencer, or affiliate platforms is advantageous

  • Excellent problem-solving skills and attention to detail

  • Availability for a 2–3 month remote contract, with potential for extension

About Twine

Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise.

Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally.

Our Mission

Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.

Required Skill Profession

Other General


  • Job Details

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Are You Looking for Senior Full Stack Developer – Remote Contract Job?

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The Work Culture

An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Twine adheres to the cultural norms as outlined by Expertini.

The fundamental ethical values are:

1. Independence

2. Loyalty

3. Impartiapty

4. Integrity

5. Accountabipty

6. Respect for human rights

7. Obeying Singapore laws and regulations

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The average salary range for a varies, but the pay scale is rated "Standard" in Singapore. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

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Interview Tips for Senior Full Stack Developer – Remote Contract Job Success

Twine interview tips for Senior Full Stack Developer – Remote Contract

Here are some tips to help you prepare for and ace your Senior Full Stack Developer – Remote Contract job interview:

Before the Interview:

Research: Learn about the Twine's mission, values, products, and the specific job requirements and get further information about

Other Openings

Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

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Be Punctual: Arrive on time to demonstrate professionalism and respect.

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Answer Thoughtfully: Listen carefully, take a moment to formulate clear and concise responses. Highlight relevant skills and experiences using the STAR method.

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Follow Up: Send a thank-you email to the interviewer within 24 hours.

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Turn Off Phone: Avoid distractions during the interview.

Final Thought:

To prepare for your Senior Full Stack Developer – Remote Contract interview at Twine, research the company, understand the job requirements, and practice common interview questions.

Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Twine's products or services and be prepared to discuss how you can contribute to their success.

By following these tips, you can increase your chances of making a positive impression and landing the job!

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