Illia Lisitsa

• Assigned to Tactical Edge through ZenBit Tech as an outstaff Technical Lead.

• Led architecture and development of a multi-tenant SaaS platform using Next.js, React, TypeScript, Node.js, PostgreSQL and AWS.

• Designed scalable backend services and APIs to enhance maintainability and support long-term system evolution. • Mentored engineers, conducted code reviews, and established engineering standards, fostering a culture of quality and collaboration.

• Collaborated with product managers and stakeholders to define technical solutions, ensuring timely delivery of business-critical features.

• Improved backend performance by optimizing database queries and application architecture, reducing average response times by up to 30%.

• Full-time employee at ZenBit Tech, delivering software solutions for international clients across SaaS, FinTech, GovTech and MedTech domains.

• Served as outstaff engineer on multiple client projects, including Tactical Edge as technical lead, ensuring alignment with client requirements and project goals.

• Built full-stack applications using React, Next.js, TypeScript, Node.js, NestJS, PostgreSQL and AWS. • Integrated third-party services such as Paddle, Stripe, Twilio, PubNub, Pusher, and SendGrid, enhancing application functionality and user experience.

• Managed production deployments and release processes, implementing hotfixes to ensure high platform availability and reliability.

• Worked across the entire software lifecycle, from architecture and implementation to deployment and production support.

• Developed enterprise web applications using React, Next.js and Node.js for international clients.

• Developed complex reporting modules, dashboards, and PDF generation workflows for large-scale government and enterprise platforms, enhancing data accessibility.

• Executed role-based access control, localization, and data visualization features for high-volume datasets, ensuring secure and effective data interaction.

• Collaborated with backend engineers to design APIs and deliver scalable end-to-end solutions.

• Optimized frontend performance and enhanced user experience across complex business applications, leading to increased user satisfaction.