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I am a Senior Software Engineer with 10 years of hands-on experience across the full Software Development Life Cycle, from planning and design to testing and deployment. My expertise spans modern technologies including cloud, microservices, and AI integration, with a strong focus on teamwork and continuous improvement. I enjoy developing scalable and efficient backend services and enhancing user experiences through innovative frontend optimizations. Throughout my career, I have worked extensively with healthcare, logistics, and education sectors, contributing to complex systems that improve daily workflows and operational efficiencies. I always seek to deliver high-quality, secure, and maintainable solutions that adhere to industry best practices.…I am a Senior Software Engineer with 10 years of hands-on experience across the full Software Development Life Cycle, from planning and design to testing and deployment. My expertise spans modern technologies including cloud, microservices, and AI integration, with a strong focus on teamwork and continuous improvement. I enjoy developing scalable and efficient backend services and enhancing user experiences through innovative frontend optimizations. Throughout my career, I have worked extensively with healthcare, logistics, and education sectors, contributing to complex systems that improve daily workflows and operational efficiencies. I always seek to deliver high-quality, secure, and maintainable solutions that adhere to industry best practices.

Piotr Litera

Developer, Programmer, Full Stack Developer, +2

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I am a Senior Software Engineer with 10 years of hands-on experience across the full Software Development Life Cycle, from planning and design to testing and deployment. My expertise spans modern technologies including cloud, microservices, and AI integration, with a strong focus on teamwork and continuous improvement. I enjoy developing scalable and efficient backend services and enhancing user experiences through innovative frontend optimizations. Throughout my career, I have worked extensively with healthcare, logistics, and education sectors, contributing to complex systems that improve daily workflows and operational efficiencies. I always seek to deliver high-quality, secure, and maintainable solutions that adhere to industry best practices.…I am a Senior Software Engineer with 10 years of hands-on experience across the full Software Development Life Cycle, from planning and design to testing and deployment. My expertise spans modern technologies including cloud, microservices, and AI integration, with a strong focus on teamwork and continuous improvement. I enjoy developing scalable and efficient backend services and enhancing user experiences through innovative frontend optimizations. Throughout my career, I have worked extensively with healthcare, logistics, and education sectors, contributing to complex systems that improve daily workflows and operational efficiencies. I always seek to deliver high-quality, secure, and maintainable solutions that adhere to industry best practices.

Available to hire

I am a Senior Software Engineer with 10 years of hands-on experience across the full Software Development Life Cycle, from planning and design to testing and deployment. My expertise spans modern technologies including cloud, microservices, and AI integration, with a strong focus on teamwork and continuous improvement. I enjoy developing scalable and efficient backend services and enhancing user experiences through innovative frontend optimizations.

Throughout my career, I have worked extensively with healthcare, logistics, and education sectors, contributing to complex systems that improve daily workflows and operational efficiencies. I always seek to deliver high-quality, secure, and maintainable solutions that adhere to industry best practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Senior Software Engineer at Helmes

July 1, 2025 - August 19, 2025

Led development of scalable healthcare backend services using NestJS and PostgreSQL to support complex clinical workflows. Architected secure role-based access control with OAuth2 and JWT ensuring GDPR compliance across a multi-tenant healthcare environment. Implemented asynchronous processing for audit logging and real-time patient notifications, enhancing reliability. Integrated LangChain to enable conversational AI for medical records queries, improving clinician efficiency. Developed a unified GraphQL API gateway consolidating microservice data access to simplify client interactions. Optimized the public frontend using Next.js with server-side rendering and static optimization, reducing page load times by 30% and boosting SEO. Managed AWS ECS deployments with Terraform and CloudWatch for zero-downtime releases and fast incident detection. Enhanced testing with Jest and Supertest, increasing release confidence and reducing defects.

Senior Software Engineer at NFQ

March 1, 2022 - August 19, 2025

Designed and maintained real-time logistics and inventory microservices using Express and PostgreSQL for high-throughput global supply chains. Migrated legacy REST APIs to GraphQL and Kafka event streaming, improving data delivery times by 30% and enhancing scalability. Refactored monolithic Python services into modular Node.js microservices for better maintainability and faster iteration. Created fuzzy search capabilities with Elasticsearch, improving product discoverability and user conversion by 20%. Built event-driven order processing and notification systems on GCP supporting high availability and scalability. Automated infrastructure provisioning and deployments with Terraform and GitHub Actions, reducing manual errors and boosting release frequency. Led testing strategy with Playwright and Jest, improving stability and test coverage. Collaborated cross-functionally on Prometheus and Grafana dashboards for enhanced monitoring and proactive incident response.

Software Engineer at Brainly

May 1, 2020 - August 19, 2025

Developed and maintained a subscription billing platform using Django and Python supporting multi-currency and automated refund workflows. Created real-time subscription status monitor using Django Channels and WebSockets for immediate payment updates. Built interactive React dashboards for finance and support teams to manage subscription states and audit transactions securely. Implemented Celery for background tasks like daily revenue aggregation and notifications, reducing manual work by 50%. Optimized PostgreSQL queries achieving a 25% reduction in API response times to enhance user experience. Developed RESTful APIs with scoped keys and permission layers for integration with external platforms, ensuring strict data privacy. Improved system monitoring with Sentry and custom metrics to proactively detect and prevent incidents.

Junior Software Engineer at Brand24

December 1, 2017 - August 19, 2025

Built FastAPI data pipelines to ingest and analyze real-time social media streams for reputation tracking and sentiment analysis. Developed reusable React and Redux frontend components powering dashboards to visualize trends, spikes, and influencer activity. Implemented alerting logic for brand mention spikes to promptly notify clients. Enhanced keyword filtering with boolean logic and multilingual tokenization to improve search precision. Wrote end-to-end test suites with Selenium and Python unittest, reducing manual QA by over 30% and increasing deployment confidence. Worked closely with senior engineers to tune backend performance and frontend responsiveness, improving scalability and user experience.