Software Engineer, Practice

WHO IS AIWYN AND WHAT DO WE DO? Aiwyn is the first complete platform for modern Accounting Firms. Backed by top-tier investors like Bessemer, KKR, and Revolution, we're one of the fastest-growing scale-up SaaS companies in the world. We build category-defining technology, and we're doing it with world-class people, processes, and products. To learn more, visit our website https://aiwyn.ai/ We work with the majority of the Top 500 firms in the country. We're replacing brittle, decades-old accounting practice management systems with software accounting firms can actually trust, and we have rare product-market fit in an industry that's about to change permanently. We're hiring a senior software engineer to join the team that owns our accounting practice management platform: the system of record for how firms track the work, bill for it, and collect, end to end. THE ROLE Our accounting practice management platform is one of the most strategic pieces of the Aiwyn platform — where the work firms do turns into revenue tracked, billed, and collected. Aiwyn Practice is the heart of it. It's the foundation we're building out so firms can manage the full lifecycle: project and time tracking, resource management, billing, invoicing, and accounts receivable, with the visibility that keeps the firm confident every piece of work is tracked, billed, and accounted for. You'll be a senior engineer on the team behind this work, partnering closely with a deeply tenured group of accounting and firm operations experts who set the bar for what "correct" means. DAY-TO-DAY - Build the systems firms run their business on. Own the services, infrastructure, and confidence metrics that let practice management grow at speed without sacrificing accuracy or trust. Make the iteration loop faster every cycle.

• Work in the trenches with the domain experts. They've been doing this for decades.

• Build and extend the APIs that Aiwyn, firms, and partners build on top of. Integrations are the wedge. Make connecting firm systems, data sources, and downstream tools seamless, and the surface area something engineers actually want to use.
• Take projects from spec to ship to scale.

• Hands-on technical depth in domains where correctness matters. You've shipped real systems where edge cases, accuracy, and domain depth were non-negotiable.
• Experience in project management and/or fintech software.

• Demonstrated ability to bridge engineering and a non-engineering domain. Engineers and finance/accounting experts (or doctors, or lawyers, or any deep domain expert) think wildly differently.

• AI-native fluency. AI tooling is woven into how you work and ship, and you have a clear point of view on where it helps and where it creates noise.
• Comfortable across the stack.

• Bonus: experience building or contributing to a billing, ledger, workflow, role based access control (RBAC), authentication, or comparable system. Practice management, billing, pricing, underwriting, claims adjudication, compliance, benefits.

• A direct, reflective leadership team that actively welcomes challenge and debate.
• Real autonomy and ownership over the systems you build.
• Competitive compensation and meaningful equity.

• The big-picture value proposition of this role is simple: join us, and you'll be paid competitively to have freedom in solving worthwhile, challenging problems alongside other A-players at a fast-growing SaaS startup led by an experienced and successful team with industry experience - AI-by-Default - you'll have access to best-in-class AI tools and work in an environment that embraces an AI-by-default mindset, where curiosity and experimentation are part of how we operate - Remote-first organization - Competitive compensation and benefits - Stock options - 401(k) matching - Adventure Travel Stipend on each anniversary of your employment with Aiwyn

Our Values

• Relentless by Design - Owners not Renters - Trust at the Core Aiwyn is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.

• Highlight any prior work building SaaS platforms or multi‑tenant systems, especially in fintech or accounting; include concrete metrics (e.g., “scaled a reconciliation service from 5k to 200k daily transactions with <30 ms latency”).
• Showcase deep familiarity with Aiwyn’s likely stack—TypeScript/Node.js, React, PostgreSQL, AWS (Lambda, RDS, S3) and CI/CD pipelines—by linking to a public repo or a detailed case study where you implemented one of these tools end‑to‑end.
• Prepare a 5‑minute “product‑impact” demo for the interview: walk through a real or simulated accounting practice‑management feature you built (e.g., automated ledger reconciliation), emphasizing design decisions, security/compliance considerations, and performance results.
• Emphasize remote‑first collaboration: cite specific experiences using async tools (Slack, Notion, Jira, GitHub PR reviews) to lead a distributed engineering team, and be ready to discuss how you handle time‑zone handoffs and documentation for mission‑critical accounting workflows.
• Research senior SaaS engineering compensation in the US fintech space (base $150‑180 k, 0.1‑0.3 % equity, 15‑20 % bonus). Use Aiwyn’s recent Bessemer/KKR funding round as leverage to negotiate a package that includes a higher equity grant tied to product‑release milestones.