Senior Fullstack Engineer

Paystand is the world's leading blockchain-enabled B2B payments network, transforming commercial finance into a software-driven, zero-fee, and open ecosystem. Recognized as a CNBC/Statista 2026 World's Top Fintech company, Paystand delivers over a decade of on-chain payments experience to middle and large enterprises.

Paystand's network services more than one million payors that have moved $20+ billion in volume. With its acquisitions of Yaydoo, Teampay and Bitwage, Paystand's full-stack platform includes agentic AI, its USDb stablecoin, and AR/AP solutions on one tightly integrated network. Its non-profit arm, Paystand.org, advances the mission to democratize finance through Bitcoin and blockchain technology.

What We Do

We built the financial system we always thought should exist: zero fees, zero friction, just your money, faster. Blockchain automates receivables and payables, cuts time-to-cash, and turns every transaction into revenue instead of cost.

Why We Do It

The current system takes a cut from the people who build, create, and grow - and calls it the cost of doing business. We don't buy that. Every fee we eliminate compounds into growth. We're here to decentralize finance and hand the power back to the businesses driving the real economy - extended further through Paystand.org's work to democratize finance through Bitcoin and blockchain.

How We Do It

We don't wait for permission or for the industry to catch up - we build the future of finance ourselves, on-chain, in the open. Small moves now, monumental results later.

Join Us

We're not looking for people who want a job in fintech. We're looking for people who want to build what comes after it. Paystand is where you help lead a financial revolution instead of just reading about one. We stand on change. Come stand with us.

Role at a glance:

At Paystand, we're seeking a talented Sr. Full-Stack Engineer to play a key role in architecting and implementing user-facing components of our cutting-edge Systems. As a member of our dynamic team, you'll collaborate closely with product owners, designers, and fellow engineers to craft web applications that redefine user interactions.

Key Responsibilities: 

• Lead the architecture and implementation of user-facing parts of Paystand’s systems.
• Design and develop reusable libraries and frameworks that support complex web applications.
• Provide technical leadership and mentorship to other engineers.
• Collaborate with product owners, designers, other engineers, and customer success teams to build the best user experience, ensuring high standards of quality and performance.
• Drive technical innovation and improvements across the development team.
• Ensure best practices in code quality, security, and performance.
• Participate in and influence all phases of the development lifecycle, including system analysis, design, coding, testing, debugging, and documentation.
• Advocate for and implement continuous improvement in the development processes and practices.

Requirements and qualifications: 

Experience: Minimum of 8 years building web, mobile-web, or hybrid mobile applications, demonstrating increasing levels of responsibility and independence.

Technical Skills:

• Strong Computer Science and Software Engineering background.
• Proven experience in architecting and building highly scalable RESTful web services and APIs.
• Advanced expertise in Node.js & Express.js.
• Proficiency in HTML, CSS, and JavaScript (ES6 and higher).
• In-depth knowledge of front-end frameworks such as Angular.js (1-4), React, Vue.js, etc.
• Experience with preprocessor stylesheet languages like Sass & Less.
• Strong understanding of software design patterns and principles.
• Experience with cloud platforms and services (e.g., AWS, Azure, GCP).
• Proficiency in containerization technologies such as Docker and orchestration tools like Kubernetes.
• Solid understanding of CI/CD pipelines and DevOps practices.

Bonus Skills:

• Expertise in HTML5, JavaScript, and CSS3.
• Knowledge of other web libraries and frameworks (e.g., Polymer, React, etc.).
• Deep understanding of front-end performance optimization strategies (e.g., Caching, CDNs, concatenation, minification, sprites, SVGs, fonts, etc.).
• Proficiency in event-driven service architectures.
• Experience with message queueing technologies (e.g., RabbitMQ, SQS, Kafka).
• Familiarity with front-end build environments (e.g., Grunt, Gulp, etc.).
• Ownership of one or more digital currencies.
• Deployment of one or more Bitcoin, Ethereum, or other crypto network nodes.
• Contribution to open-source projects or active involvement in the tech community.

Perks

• Salary + competitive equity in a high-growth-stage startup.
• Generous PTO (vacations) and sick days.
• Free snacks and paid lunch in the office.
• Major Medical Health Insurance.
• Food Vouchers.
• Stock Options.
• Your own equipment and tools.
• Opportunity for advancement and growth in a rapidly expanding team.
• Mentorship, learning and education programs.
• Smart, high-achievers, motivated team that likes to have fun.
• Mission-driven culture, where your work matters.

If you're passionate about driving change in the FinTech landscape and being part of a company that is shaping the future of digital payments, we invite you to explore opportunities with Paystand.

We understand that no candidate is perfectly qualified for any job. Experience manifests in diverse ways, skills are transferable, and passion is a powerful driver. Your journey and skills are unique, and we value the richness that diverse perspectives bring to our team.

More than a resume, we prioritize a genuine commitment, impactful contributions, and the ability to thrive in our dynamic, collaborative environment. We are enthusiastic about providing you with opportunities to learn and grow within this role. If your experience aligns closely with what we're seeking, we encourage you to apply.

We celebrate the belief that diversity in backgrounds and thoughts fuels better problem-solving and fosters more creative thinking. Our commitment to adding new perspectives to the team reflects our dedication to innovation and inclusivity.

Your journey is important to us, and we look forward to the possibility of welcoming you to our team at Paystand. Feel free to reach out; we can't wait to hear from you.

Most of our roles are onsite. Positions that are eligible for remote or hybrid work arrangements will be clearly indicated in the job posting.

For roles based in Mexico, only resumes submitted in English will be considered.#LI-Onsite