Senior Software Engineer | Typescript

Hi, We're AffiniPay!
AffiniPay is a leading fintech company, based out of Austin, Texas. As the market leader in professional services payments and practice management software, AffiniPay's tech products serve legal, accounting, architectural, engineering and construction firms. AffiniPay has been recognized as one of Inc. 5000's fastest growing companies in the U.S. for 13 years in a row, and as a result, our teams continue to grow as well!
We are looking for a Fullstack Senior Software Engineer to help build out our expense management team. This team will focus on driving more value to our ever growing customer base through developing a better customer workflow for expense tracking and management.
What You'll Do

• Design and implement scalable applications within our Nx monorepo using NestJS for backend services and NextJS for frontend applications.
• Build and maintain our Atomic Design system, creating reusable components that ensure consistency across all applications.
• Develop robust backend APIs and microservices using NestJS, leveraging TypeScript's type safety and decorators.
• Create performant, SEO-friendly frontend applications with NextJS, implementing SSR/SSG strategies where appropriate.
• Collaborate with product teams to assess trade-offs, identify risks, and align improvements with business objectives.
• Design and optimize PostgreSQL database schemas, write efficient queries, and implement proper data access patterns.
• Work with DevOps to deploy and maintain applications on AWS using Kubernetes and Helm charts.
• Contribute to infrastructure as code using Terraform, ensuring reproducible and scalable deployments.
• Mentor and coach software engineers on monorepo best practices, TypeScript patterns, and our tech stack.
• Partner with UX teams to implement our design system, ensuring consistent user experiences across all products.
• Support software deployments by debugging containerized applications and troubleshooting Kubernetes deployments.
• Lead team ceremonies, including sprint planning, grooming, and retrospectives, ensuring effective communication and coordination.
• Drive technology initiatives to enhance application performance, scalability, and maintainability within the monorepo structure.
• Stay updated with Node.js ecosystem trends, monorepo tooling advances, and cloud-native technologies.

About You

• BS in Computer Science or related field, or equivalent professional experience.
• 7+ years of experience designing, implementing, and debugging large-scale, cloud-based solutions.
• Strong expertise in TypeScript and the Node.js ecosystem, with production experience in both NestJS and NextJS frameworks.
• Extensive experience building production-grade React applications within NextJS, including SSR/SSG implementation, API routes, and performance optimization.
• Proven experience working with monorepo architectures, preferably with Nx, including understanding of dependency graphs and build optimization.
• Solid understanding of Atomic Design principles and experience building scalable design systems.
• Professional experience with PostgreSQL, including query optimization, migrations, and ORM usage (TypeORM/Prisma).
• Experience with containerization, Kubernetes orchestration, and Helm chart development.
• Familiarity with infrastructure as code principles and hands-on Terraform experience.
• Experience with Lean product development and Agile frameworks (e.g., Scrum, Kanban).
• Strong understanding of SOLID design principles, design patterns, and clean architecture in TypeScript.
• Excellent teamwork, documentation, and communication skills.

Nice to Haves

• Advanced monorepo experience, including custom executors, generators, and build optimization strategies. Preferably experience with Nx.
• Experience with AWS services beyond EKS (Lambda, RDS, S3, CloudFront, etc.).
• Proficiency with Kubernetes ecosystem tools (kubectl, k9s, Lens) and GitOps practices.
• Experience implementing CI/CD pipelines for monorepo environments.
• Knowledge of microservices patterns and inter-service communication in NestJS.
• Experience with GraphQL implementation in NestJS/NextJS stack.
• Familiarity with observability tools in Kubernetes environments.
• Experience building scalable Software as a Service (SaaS) applications.
• Understanding of cloud-native security best practices and implementation.

Our Story
Founded in 2005, AffiniPay's mission is to build technology products that helps professionals focus on the work they love. As the leader in the professional payments industry, AffiniPay's products serve legal, accounting, architectural, engineering and construction firms. Our portfolio of software solutions include MyCase (Legal Practice Management Software), CASEpeer (Practice Management for Personal Injury Firms), and Docketwise (Immigration & Case Management Software). Our portfolio of payment solutions include LawPay (Legal), AffiniPay for Associations (Associations), CPACharge (Accounting Professionals), and ClientPay (Architect, Engineer, and Construction). AffiniPay's products serve over one hundred thousand users, and we are noted as one of the fastest growing tech companies in Austin, Texas. We are constantly looking for talent to join our team to continue playing a key part in unlocking our potential.
Diversity, Equity & Inclusion at AffiniPay
At AffiniPay, we recognize that innovation occurs with a strong team of people who are diverse in background, personality, talent and ideas. Experience comes in many forms and ensuring a diverse and inclusive workplace where we continue to learn from each other is an integral part of our culture. We are committed to creating a welcoming and transparent environment for all that embraces those differences through education, equal access to opportunities and information, inclusionary programs, and community outreach.
Benefits that Benefit You!
As a people first culture, we believe it is important that our teammates are happy, healthy, and productive. In order to best support that, AffiniPay provides award-winning benefits that can make a difference in your life - right now and for the future.

• All employees receive fully covered medical, dental and vision coverage - Choose from our 2 available health plans based on what fits you and/or your family!
• Have some fur babies? - We offer them insurance too!
• RELAX and enjoy your time away with our flexible paid time off policy!
• We will help you plan for your future - 401K, or RRSP if in Canada, with a company match
• Competitive compensation packages that include mid-year and end-of-year bonuses and equity options for all full-time employees
• Health Wellness Program that includes nutrition consultations, mental health apps, and access to discounted memberships
• Have plans to grow your family? - Parental resources, including 16 weeks of paid time off for primary caregivers
• Professional development opportunities including mentorships, leadership programs and our AffiniPayU courses
• We believe it is important to give back with our Matching Gift Program and organized activities focused on donations, volunteerism and supporting the local communities throughout the country
• D&I initiatives provide educational opportunities regarding multicultural issues, tolerance, and celebrating diversity among our entire staff
• An incredible, in-office experience at our headquarters in Austin and San Diego including free lunch delivery, a fully stocked kitchen, and some "sweet" surprises for those afternoon pick-me-ups

Security Advisory
Our hiring teams at AffiniPay are dedicated to recruiting top talent that share our passion for serving the professional services industry through innovative financial technology. As such, our Talent Acquisition Team only follows legitimate hiring practices. We will always communicate with our candidates using emails with the AffiniPay domain and will never ask for sensitive/personal data during the application process. All interviews take place over phone call, Zoom/Google Meet or in person. All offers are communicated verbally by our Talent Acquisition Specialists with a written offer letter as a follow up.