I am a result-driven Senior Software Engineer with over 8 years of experience delivering high-performing, scalable software. I enjoy taking ownership of architectural decisions and building robust platforms that scale. I specialize in web and mobile apps using Flutter and Supabase, and I’ve led initiatives to streamline property management operations, integrate secure payments, and ensure smooth, rapid deployments. Outside of coding, I’m passionate about mentoring peers, improving team practices, and delivering delightful user experiences. In my recent roles, I’ve focused on performance, security, and cross-functional collaboration—designing modular systems with microservices, leveraging cloud infrastructure (AWS), and driving improvements from code to customer satisfaction. I thrive in fast-paced environments and enjoy turning complex requirements into reliable, maintainable software solutions.

Antoni Potocki

I am a result-driven Senior Software Engineer with over 8 years of experience delivering high-performing, scalable software. I enjoy taking ownership of architectural decisions and building robust platforms that scale. I specialize in web and mobile apps using Flutter and Supabase, and I’ve led initiatives to streamline property management operations, integrate secure payments, and ensure smooth, rapid deployments. Outside of coding, I’m passionate about mentoring peers, improving team practices, and delivering delightful user experiences. In my recent roles, I’ve focused on performance, security, and cross-functional collaboration—designing modular systems with microservices, leveraging cloud infrastructure (AWS), and driving improvements from code to customer satisfaction. I thrive in fast-paced environments and enjoy turning complex requirements into reliable, maintainable software solutions.

Available to hire

I am a result-driven Senior Software Engineer with over 8 years of experience delivering high-performing, scalable software. I enjoy taking ownership of architectural decisions and building robust platforms that scale. I specialize in web and mobile apps using Flutter and Supabase, and I’ve led initiatives to streamline property management operations, integrate secure payments, and ensure smooth, rapid deployments. Outside of coding, I’m passionate about mentoring peers, improving team practices, and delivering delightful user experiences.

In my recent roles, I’ve focused on performance, security, and cross-functional collaboration—designing modular systems with microservices, leveraging cloud infrastructure (AWS), and driving improvements from code to customer satisfaction. I thrive in fast-paced environments and enjoy turning complex requirements into reliable, maintainable software solutions.

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Experience Level

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Work Experience

Senior Software Engineer at SAP
July 1, 2024 - Present
Developed and enhanced web and mobile applications using Flutter for landlords and real estate agents in the property management sector. Integrated Stripe for payments with an uptime of 99.9% and reduced transaction failure rates by 30%. Improved automation workflows, increasing operational efficiency by 25%. Scaled the platform for multi-market growth, growing the user base from 500 to 3,000 in six months. Optimized performance to reduce average application load times from 4s to 1.5s. Contributed to code reviews, mentoring juniors, and comprehensive technical documentation. Implemented OAuth2-based security, helped design scalable microservices, and leveraged AWS for high availability and rapid deployments.
Full stack Engineer at Allegro
September 1, 2021 - July 31, 2024
Developed solutions for a healthcare client, modernizing legacy systems with modern web technologies to reduce data processing time from hours to minutes. Collaborated with product owners to align technical deliverables with user needs, resulting in improved client satisfaction. Implemented performance monitoring and optimized resource allocation, achieving a 15% reduction in operational costs. Owned a critical module and increased load handling from 100 to 500 concurrent users for high-traffic launches. Improved API speed and reliability, mentored junior engineers, and contributed to knowledge sharing.
Software Developer at Sii Poland
September 1, 2020 - August 31, 2021
Consulted with a fintech client, redesigning transaction systems to improve reliability under high load. Built RESTful APIs for secure data exchange, improving transaction speed and reducing costs. Implemented CI/CD pipelines with Jenkins and used AWS for deployment, ensuring resiliency and disaster recovery. Translated client requirements into actionable software tasks, and optimized database queries to significantly reduce critical reporting module load times from 10s to 3s.

Education

Bachelor's degree in Computer Science at University of Birmingham
January 1, 2017 - January 1, 2020

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Real Estate & Construction, Professional Services, Healthcare, Financial Services

Experience Level

Expert
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Intermediate
Intermediate
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