Senior Full Stack Developer

About the Position

On behalf of WiseStamp, SD Solutions is looking for a talented Senior Full Stack Developer to join our Signatures Team-the team behind WiseStamp’s core product and the cornerstone of our entire ecosystem. This role sits at the heart of WiseStamp. You’ll work on a sophisticated, visual Signature Editor that enables users to create highly customized designs with ease, while meeting the tough technical challenges of email-client compatibility, performance, and scale.

Responsibilities

Design, build, and maintain WiseStamp’s core Signature Editor-a complex, highly visual product used by millions of users.
Develop pixel-perfect rendering solutions to ensure consistent designs across a fragmented ecosystem of email clients (Gmail, Outlook, Apple Mail, and more).
Build fast, responsive, and scalable full-stack solutions that perform well at scale.
Take full ownership of features, from technical design through implementation, testing, and production.
Collaborate closely with product, design, and engineering teams to deliver high-impact user-facing features.
Actively use AI-based development tools to improve productivity, code quality, and problem-solving.
Contribute to AI-powered product capabilities, integrating intelligent and generative features into WiseStamp’s platform.

Requirements

6–7+ years of hands-on experience developing enterprise-grade services and applications as a Full-Stack Developer.
Strong production-level expertise in Node.js, TypeScript, and modern JavaScript (ES6+).
Solid hands-on experience with at least one modern frontend framework (Vue, React, or Angular); Vue 3 is a strong advantage.
Excellent communication skills and full professional fluency in English (written & verbal).
Ability to work within Israel time zone (±2 hours flexibility).
Proven ownership mindset-independently drive tasks from requirements/discovery → implementation → testing → deployment → monitoring.
Practical experience using AI-based coding tools (Cursor, GitHub Copilot or similar) to boost productivity and code quality.
Passion for clean code, performance optimization, and exceptional user experience.
Proactive, curious mindset and genuine excitement about leveraging AI both in development workflows and in the product itself.
Collaborative team player with strong ability to work effectively across functions.

Nice to Have

2+ years of experience working in a SaaS-based company.
Experience building complex visual editors or WYSIWYG builders (e.g., Canva, Figma, Wix), including drag-and-drop, real-time object manipulation, and dynamic styling.
Hands-on experience with Canvas- or DOM-based rendering solutions.
Practical experience with multiple data stores, including RDBMS, NoSQL, and key-value stores (MongoDB is an advantage).
Experience working with cloud platforms (GCP is an advantage).
Background in designing microservices and event-driven architectures.

We Offer

Opportunity to work with a leading email signature management platform.
Be part of a product-first, engineering-driven company with a strong focus on innovation, quality, and ownership.
Competitive salary and benefits package.
Remote work options.
Professional development opportunities.

About the Company

WiseStamp is the leading email signature management platform, helping businesses and professionals elevate their brand identity with every email they send. Trusted by over 1 million users and 18,000+ companies worldwide, our award-winning SaaS solution makes it easy to manage and scale branded email signatures across entire organizations-turning everyday emails into powerful marketing assets. With a strong track record of innovation and growth, WiseStamp is proud to help companies look their best and make every message count.

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