About this Senior Fullstack Engineer role at Paystand
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
AI is core to how we build Paystand’s open banking network and transform how businesses pay and get paid. We’re seeking a Senior Full-Stack Engineer to turn complex business problems into reliable payment experiences, owning delivery from technical design through production. You’ll combine AI-assisted and agent-led development with strong engineering judgment to build solutions that fit the broader product and scale with customer needs. Partnering with Product, Design, and Engineering, you’ll navigate ambiguity, drive technical decisions, and deliver in a fast-paced environment.
AI-First Engineering Expectations
Paystand is an AI-first organization. We expect engineers at every level to combine AI-powered development with the technical judgment needed to build reliable software. As a Senior Full-Stack Engineer, you are expected to:
- Drive AI-assisted and agent-led development across discovery, architecture, implementation, testing, and production troubleshooting to increase delivery velocity while maintaining engineering standards.
- Translate complex requirements into verifiable tasks, provide agents with architectural and codebase context, and define acceptance criteria. Validate generated solutions for correctness, security, maintainability, and their impact on the broader product.
- Design AI-enabled features and integrations, selecting appropriate models, tools, and evaluation methods based on customer needs, reliability, and cost. Exercise judgment about when to use AI, deterministic software, or human review.
- Build automation that reduces repetitive engineering work and improves testing, documentation, and delivery workflows.
- Evaluate AI tools and frameworks, establish effective engineering practices, and guide team adoption based on demonstrated improvements in delivery and product quality.
Role and 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, and other engineers to build the best user experience, ensuring high standards of quality and performance.
- 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 & Qualifications
- Builder experience: 7+ years of professional software engineering experience, with a track record of independently delivering products or significant capabilities from concept through production and improving them based on customer and operational feedback.
- Frontend development: Strong experience with JavaScript or TypeScript and a modern framework such as React, Next.js, Vue, or Angular, including component architecture, state management, accessibility, and performance.
- Backend development: Strong experience with Node.js/TypeScript, Python, Java, Go, Elixir, or a comparable ecosystem, including API design, data contracts, and integrations with internal and third-party services.
- Architecture and data: Experience designing modular, scalable systems using relational databases, sound data modeling, asynchronous processing, caching, and integration patterns, with clear reasoning about tradeoffs and complexity.
- Cloud and delivery: Hands-on experience deploying and operating production systems on AWS or Google Cloud, including containers, infrastructure as code, CI/CD, and secure configuration management. Working knowledge of Cloudflare or comparable edge infrastructure.
- Quality, security, and reliability: Experience with automated testing, observability, incident response, and root-cause analysis, alongside secure engineering practices for access control, data protection, auditability, and reliable transaction processing.
- Product ownership and collaboration: Ability to partner with Product and Design to clarify customer problems, challenge assumptions, define incremental releases, and balance delivery speed with long-term technical health.
- Technical leadership: Demonstrated ability to guide architectural decisions, conduct effective design and code reviews, mentor engineers, and communicate technical tradeoffs to engineering and business stakeholders.
- Self-directed learning and execution: Ability to navigate unfamiliar systems, resolve ambiguity, and learn new technologies independently. Take initiative, seek alignment on consequential decisions, surface risks early, and follow through on delivery and production outcomes.
Bonus Skills
- Experience building payments, fintech, accounting, ERP, or banking products, particularly workflows involving money movement, reconciliation, ledgers, or financial integrations.
- Experience with blockchain, digital assets, smart contracts, or decentralized systems.
Qualifications Perks & Benefits
At Paystand, we offer a comprehensive benefits package that goes beyond statutory requirements:
- 🛡️ Statutory benefits, including IMSS, INFONAVIT, and AFORE.
- 🏖️ Paid vacation with an enhanced vacation premium.
- 🎄 Annual Christmas bonus (aguinaldo).
- 🛒 Monthly food vouchers.
- 🏦 Savings fund with a matching company contribution.
- 🏥 Company-provided major medical insurance.
- 📈 Stock option eligibility under Paystand’s equity incentive plan, subject to approval.
- 💻 Company-provided equipment and tools.
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
