Alex Arsenault

Senior software engineer with 8+ years of experience turning complex business problems into clear, reliable software products. I have built payment systems, SaaS platforms, dashboards, compliance workflows, and AI-assisted tools used by customers, merchants, agencies, and regulated businesses. Known for taking ownership from early product thinking through design, development, launch, and customer-facing delivery.

Core Strengths:

• Translating business insights and evolving needs into well-defined feature requirements in collaboration with Product Managers and stakeholders.

• Building dashboards, portals, payment flows, integrations, and workflow tools that streamline complex operations and surface useful business insights.

• Working across product, design, and engineering to define requirements and maintain delivery momentum.

• Shipping reliable systems in domains where trust, compliance, accuracy, and usability matter.

• Integrating AI and automation into business processes to reduce manual work while preserving human review and quality control.

Founder / Full-Stack AI Engineer at SubsidAI (2023-01 – 2026-04)

Built SubsidAI, an AI-assisted SaaS platform that helped Dutch companies secure EUR 700K+ in awarded WBSO R&D tax credits across 26 applications.

• Designed and built the full product from the ground up, including the customer experience, account management, payment access, admin tools, and production launch.
• Created guided workflows that helped companies understand eligibility, describe R&D projects clearly, prepare application details, and improve submission readiness.
• Built AI-assisted drafting tools that translated technical project details into clearer language for tax credit applications and compliance review.
• Connected tools such as GitHub, Jira, Bitbucket, and Linear so companies could turn day-to-day engineering activity into evidence for audits and reporting.
• Owned the full product lifecycle: product strategy, UX, system design, implementation, deployment, localization, and customer delivery.

Senior JavaScript Engineer at Independent / Agency (2020-08 – Present)

• Built a financial operations dashboard for Bexio that helped fiduciary teams monitor client accounts, track recurring accounting work, manage team responsibilities, and spot KPI alerts across many small-business clients.
• Delivered a nationwide transportation census application that enabled 55,000+ participants in Switzerland to verify and submit transportation data digitally.
• Built Outpoint's first media mix modeling dashboard, bringing data from Shopify, Amazon, TikTok, Meta, Google Ads, Snapchat, and Stripe into one view for acquisition and ad-spend analysis.
• Contributed to Outpoint reaching a $400K ARR early exit within 9 months by helping turn fragmented marketing data into a usable customer-facing product.
• Delivered custom ecommerce, CMS, and business workflow systems for startup and agency clients, often translating messy requirements into clear product interfaces and maintainable delivery plans.

Software Engineer at Modum.io (2019-03 – 2020-08)

Developed MODsense, a monitoring application used in pharmaceutical supply chain compliance to track sensitive environmental data across desktop and mobile experiences.

• Worked closely with product owners, testers, and stakeholders to prioritize and ship features for a regulated-industry product.
• Improved and maintained the product through security updates, architecture improvements, automated testing, and code reviews.
• Built prototypes and MVPs for customer events, helping stakeholders demonstrate upcoming product capabilities and gather support.
• Led high-value customer projects from requirements gathering through implementation and customer communication.

Frontend Developer at PayFast (2017-09 – 2019-02)

Served as the primary Vue.js developer for PayFast, South Africa's largest payment gateway, supporting roughly 1 million monthly transactions and more than 80,000 merchants.

• Modernized the mobile payment experience, reducing mobile bounce rate by nearly 20% and supporting substantial mobile transaction growth within 8 months.
• Built a prototype for embedded merchant checkout that explored a smoother payment experience while accounting for security and compliance constraints.
• Created PayFast's merchant portal, giving businesses a clearer way to view fees, transactions, payments, and account information.
• Mentored junior developers and took frontend ownership for multiple major releases.