Senior Full Stack Engineer, Ecommerce

ClassWallet

Job Overview

Location

Remote

Employment Type

Full-time

Work Arrangement

Remote

Sector

Information Technology & Software

Experience Level

Senior (5-8 years)

Application Deadline

July 17, 2026

About the Company

ClassWallet is a leading financial technology company based in the United States, dedicated to simplifying how organizations manage public funds. The company provides an innovative digital wallet solution that empowers agencies to efficiently distribute funds, ensure compliance, and maximize program impact. ClassWallet has successfully processed over $3.5 billion to date, serving public agencies across 33 states. Recognized for its rapid growth, ClassWallet ranked 61st on the Inc. 5000 list of fastest-growing software companies and 21st on the Deloitte Technology Fast 500 in 2023. Beyond its business achievements, ClassWallet is driven by a strong social mission, fostering exponentially more efficient public programs and significantly increasing their reach and impact for individuals. The company prides itself on a positive, family-oriented culture that emphasizes encouragement, gratitude, and work-life balance.

Job Description

ClassWallet, a leading financial technology innovator in the United States, is actively seeking a Senior Full Stack Engineer specializing in E-commerce to join our dynamic team. This is an exceptional opportunity to contribute to a company that is redefining how public funds are managed and distributed.

ClassWallet provides a cutting-edge financial technology platform that empowers agencies to efficiently manage public funds. Our suite of products and services dramatically increases the efficiency of funds distribution and spend compliance, reduces programmatic costs, and maximizes the impact of public programs. We have successfully processed over $3.5 billion and serve public agencies across 33 states, earning recognition as one of the fastest-growing software and FinTech companies in the nation.

Beyond our business achievements, ClassWallet is deeply committed to social impact. Our innovations ensure public programs run with greater efficiency, significantly enhancing their reach and positive outcomes for individuals. This mission-driven culture fosters a positive, family-oriented environment focused on encouragement, gratitude, and a healthy work-life balance.

As a Senior Software Engineer, you will serve as a core contributor within an engineering team, taking ownership of significant features from end-to-end. You will play a crucial role in shaping system architecture and upholding high standards for code quality. This is a hands-on individual contributor position, where you will dedicate the majority of your time to building, reviewing, and enhancing high-performing software solutions. While direct management is not required, you will be expected to elevate the team's technical capabilities through robust code reviews, insightful design input, and informal mentorship of less-experienced engineers.

To apply for this role, click the Apply button on this page and follow the instructions.

Required Skills

JavaScriptTypeScriptNode.jsNest.jsReactNext.jsMongoDBMySQLRESTful APIsGraphQL APIsE-commerce platformsMulti-vendor marketplacesSaaS applicationsShopping cart state managementPayment gateway integrationsInventory synchronizationSecure user data handlingPunchOut catalogscXML PunchOutOCISAP AribaCoupaJaggaerOracle ProcurementSDLCAgile sprintsSOC 2NISTPCI-DSS

Key Responsibilities

Own significant features end-to-end, from conception to completion.
Help shape and evolve the system architecture for scalability and performance.
Set and maintain high standards for code quality across the engineering team.
Actively build, review, and improve high-performing software solutions.
Elevate the team’s technical level through strong code reviews, thoughtful design input, and informal mentorship.
Consistently deliver well-tested, high-quality marketplace features on schedule.
Accurately scope work within agile sprints and proactively resolve technical roadblocks.
Contribute directly to the scalability, security, and reliability of the e-commerce platform across Node.js, React, MySQL, and MongoDB.
Uphold rigorous code review standards and minimize production bugs.
Take ownership of complex architectural challenges, system designs, and critical feature development.
Lead by example in engineering craftsmanship while collaborating closely with the team and Technical Lead.

Qualifications

Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related technical field (or equivalent practical experience).
5+ years of progressive software engineering experience across the full Software Development Life Cycle (SDLC).
Demonstrated ability to operate with a high degree of autonomy, including scoping complex work, driving features to completion, and unblocking self and others.
Experience mentoring or guiding other engineers through code reviews, pairing, and technical discussions.
2+ years of direct experience building, scaling, or maintaining e-commerce platforms, multi-vendor marketplaces, or high-volume transactional SaaS applications.
Working understanding of domain-specific challenges such as shopping cart state management, payment gateway integrations, inventory synchronization, and secure user data handling.
Hands-on experience integrating PunchOut catalogs with third-party procurement and ERP systems (e.g., SAP Ariba, Coupa, Jaggaer, Oracle Procurement), including the end-to-end punchout session and cart round-trip.
4+ years of full-stack development experience heavily focused on the JavaScript/TypeScript ecosystem.
Strong hands-on experience designing and building scalable backend services and RESTful/GraphQL APIs using Node.js and Nest.js.
Solid experience developing responsive and high-performance frontends using React and Next.js.
Practical experience with database design and management, including working knowledge of both NoSQL (MongoDB) and relational (MySQL) databases.
Familiarity with e-procurement integration standards and protocols — cXML PunchOut (PunchOutSetupRequest/Response, PunchOutOrderMessage) and/or OCI — along with purchase order and invoice document exchange (e.g., cXML OrderRequest, InvoiceDetailRequest).
Preferred: Prior experience with high-growth e-commerce or multi-vendor marketplace platforms, specifically addressing challenges such as multi-currency transactions, global logistics, or complex vendor payout structures.
Preferred: Familiarity with industry-standard compliance frameworks and security protocols, such as SOC 2, NIST, or PCI-DSS, and experience applying these controls within a cloud-native software development lifecycle.
Preferred: Proven experience building and maintaining PunchOut catalog connections at scale, including Level 1 and Level 2 PunchOut, hosted/CIF catalogs, shared-secret authentication, session handling, and troubleshooting connections across multiple buyer procurement platforms.

Benefits & Perks

Excellent salary and comprehensive benefits package commensurate with experience.
Positive, family-oriented team environment focused on encouragement, positive reinforcement, and gratitude.
Highly motivated culture with a healthy perspective on work-life balance.
Commitment to diversity and inclusion as an Equal Opportunity Employer.

How to Apply

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The e-commerce sector in the United States continues its robust expansion, driven by innovative FinTech solutions. This Senior Full Stack Engineer role is pivotal in enhancing ClassWallet's industry-defining digital wallet platform. You will leverage advanced JavaScript/TypeScript, Node.js, React, and Next.js to develop scalable e-commerce features. Key responsibilities include optimizing payment gateway integrations, managing complex shopping cart states, and ensuring secure user data handling. Your expertise in cXML PunchOut and OCI standards will directly impact procurement efficiency and compliance. This position offers significant influence over system architecture, directly contributing to the platform's scalability and ClassWallet's market leadership.