Design, build, and maintain backend services and REST APIs with NestJS/TypeScript and MySQL; implement React/Tailwind UI components; integrate frontend and backend; support Kafka messaging; collaborate with product/design using Figma; use AI coding tools to accelerate development and work in an agile cross-functional team.
About Wyllo
About the Role
You will
You have
A plus, but not required
Working at Wyllo
Wyllo is a CX-first, end-to-end risk intelligence platform that helps ecommerce merchants manage fraud, policy abuse, and customer experience across the entire commerce lifecycle. By combining identity signals with behavioral intelligence, Wyllo enables merchants to better understand shopper intent and make smarter decisions across checkout, returns, refunds, and customer support. Wyllo works with leading ecommerce brands and integrates directly into the platforms where merchants manage orders and customer interactions. Learn more at www.wyllo.ai
We’re looking for a Full Stack Developer to design, build, and enhance features across our backend services and frontend applications. You will work in Node.js/NestJS/TypeScript for backend logic and React/Tailwind CSS for user interfaces, ensuring smooth API integrations and delivering high-quality, user-facing functionality.
You will
- Develop and maintain backend services and REST APIs using NestJS, TypeScript, and MySQL.
- Implement frontend components and views in React and Tailwind CSS based on product specifications.
- Integrate APIs seamlessly between backend and frontend.
- Support and enhance Kafka messaging infrastructure.
- Collaborate with product and design teams using Figma assets.
- Ensure code is performant, maintainable, and accessible.
- Use AI tools like Cursor.AI to accelerate development with strong prompting skills.
- 3–5+ years of professional experience working in full stack development.
- Strong knowledge of React, Tailwind CSS, Node.js, NestJS, TypeScript, and MySQL.
- Experience with Kafka or similar messaging systems.
- Familiarity with REST APIs and backend integration workflows
- Proficiency in using AI coding tools such as Cursor.AI as a co-pilot, with strong prompting skills to accelerate development
- Experience working with design tools like Figma to translate mockups into production-ready components
- Strong communication and teamwork skills
- Experience with using Atlassian tools such as JIRA and Confluence
- Comfort working in an agile, cross-functional team environment.
- Degree or Advanced Degree (Ph.D. or Master’s) in Computer Science, AI, Data Science, or related field.
- Experience in e-commerce, fraud, anomaly detection, or financial data modeling.
- Experience with Ruby and Ruby on Rails is a plus
- Experience with Bootstrap is a plus
Working at Wyllo
We’re a high-performing team that is passionate about making commerce a safe, wonderful experience for Brands and Consumers. Our community is driven by values that shape everything we do. We seek passionate and dedicated individuals who align with our core principles; Integrity, Pride, Humility and Impact.
- Integrity: We do the right thing, even when it’s tough, and even if no one sees it. We always consider the customer’s best interest in every decision we make.
- Pride: We know that the work we do is important, and we take great pride in doing it well. We show up every day with the best intentions, ready to deliver superb outcomes for our team, our customers, and ourselves.
- Humility: We leave our egos at the door, approaching problems as a team, with openness and collaboration. We’re willing to be wrong in order to get things right.
- Impact: We are results-oriented, we take ownership, and we hold ourselves accountable to get things done and deliver results.
If you are excited to collaborate in a fast-paced, purpose-driven environment where your contributions truly matter, we’d love to have you join us!
Equal Employment Opportunity
Wyllo LLC provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics, sexual orientation, political affiliation, military veteran status, domestic violence victim status, or any other protected characteristic under applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
Similar Jobs
Healthtech • Social Impact • Software
Lead and execute Grow Therapy's multi-year Security Engineering roadmap. Build secure-by-default infrastructure (auth, authZ, logging, egress), drive data security and systematic data tagging, develop org-wide security scorecards, enable automated least-privilege and vulnerability management, and influence AI-native security and security culture across product, platform, and compliance teams.
Fintech • Information Technology • Software
Lead SentiLink's insurance vertical by prospecting and closing enterprise deals with carriers, MGAs, insurtechs, and platforms. Shape go-to-market strategy, define use cases, build executive relationships across fraud, underwriting, and risk teams, and partner cross-functionally to influence product and customer success.
.png)
Cloud • Insurance • Payments • Software • Business Intelligence • App development • Big Data Analytics
Manage and adapt implementation projects, lead setup/configuration and troubleshooting, own customer communication, build trust-based relationships, translate technical details for customers, act as product SME for complex multi-system implementations and coordinate cross-functional teams for smooth handoffs.
Top Skills:
MS Office
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute
