Hi, my name is
Pawel Lisowski.
I build things for the web.
I build scalable full-stack web applications. With 8+ years of experience across enterprise environments in pharma, aviation, and financial services, I specialize in crafting high-performance systems using modern technologies. Currently at Novartis.
About Me
I'm a Senior Software Engineer who enjoys building things that live on the web. I've been learning programming since I was 14, and after graduating from university in Waterford, Ireland in 2016, I started my career at Fenergo in Dublin as a Software Engineer in Test — which quickly evolved into full-stack development.
In 2017 I moved to Gdynia, Poland to pursue more interesting projects as a software engineer. Since then, I've had the privilege of working with major organizations including Novartis, British Council, Lufthansa Systems, and clients like Boeing, Danfoss, and Signal Ocean. My focus these days is on architecting executive dashboards and data pipelines that deliver real-time insights to stakeholders.
Outside of client work, I'm building Lisovate — a software company creating products that integrate generative AI and autonomous agents into developer and software team workflows. Beyond writing code, I enjoy exploring product ideas, occasionally unwinding with video games, and touching grass whenever possible.
Here are some technologies I've been working with:
Technical Skills
Frontend
Backend
Data
DevOps
Testing
Where I've Worked
Senior Software Engineer @ Novartis
Dec 2023 - Present
Contract · Remote, Poland
- ▹Architected executive financial analytics dashboard using React/TypeScript, Java/Spring Boot, and Python/FastAPI, delivering real-time insights to director-level stakeholders across global pharma operations
- ▹Engineered data pipelines processing millions of financial records daily, improving data retrieval performance by 40% through query optimisation and strategic indexing
- ▹Built interactive data visualisation components with Recharts and D3.js, presenting complex R&D spending trends and clinical trial cost analytics
- ▹Designed modular component architecture with comprehensive Storybook documentation, enabling rapid feature development across 4 distributed teams
- ▹Implemented Docker containerisation and GCP Cloud Run deployment workflows with automated rollbacks, cutting deployment time by 50%
- ▹Developed role-based access control system with OAuth 2.0 and JWT, ensuring secure access to sensitive financial data across organizational hierarchies
Senior Software Engineer @ British Council
Sep 2022 - Dec 2023
Contract · Remote, Poland
- ▹Built and maintained React/Node.js applications supporting global education services including exam registration systems with 100k+ monthly active users
- ▹Developed exam scheduling and booking system handling peak traffic during IELTS enrollment periods with zero downtime
- ▹Designed scalable backend microservices with Java/Spring Boot deployed on AWS ECS, achieving 99.9% uptime during high-demand periods
- ▹Implemented GraphQL API gateway to unify data access across 6 microservices, reducing frontend data-fetching complexity by 40%
- ▹Optimised PostgreSQL queries and implemented Redis caching layer, reducing API response times by 60% for frequently accessed endpoints
- ▹Built comprehensive testing suite with Jest and Playwright, achieving 85% code coverage and enabling confident continuous deployment
Software Engineer @ Lufthansa Systems
Jan 2021 - Sep 2022
Contract · Remote, Poland
- ▹Developed Angular/Java fuel efficiency platform calculating consumption metrics and cost optimisation strategies for major airline clients
- ▹Built real-time flight analytics dashboards processing 15,000+ daily flight records, enabling data-driven decisions for fleet management
- ▹Integrated external aviation data sources including weather APIs and NOTAM feeds to enhance fuel consumption predictions and route planning
- ▹Designed RESTful APIs with Spring Boot handling complex flight plan calculations and performance analytics for operations teams
- ▹Implemented CI/CD pipelines with Jenkins, Ansible, and SonarQube quality gates, reducing deployment time by 40% while improving code quality
- ▹Collaborated directly with airline operations specialists to translate complex aviation domain requirements into intuitive technical solutions
Software Engineer @ Jit Team
Sep 2017 - Jan 2021
Full-time · Gdynia, Poland
Clients: Danfoss, Jeppesen, Signal Ocean
- ▹Delivered frontend and full-stack solutions for enterprise clients across aviation, maritime logistics, and industrial manufacturing sectors
- ▹Built React/NestJS industrial IoT dashboards for Danfoss, processing real-time sensor telemetry from 500+ HVAC and refrigeration devices with WebSocket streaming
- ▹Developed Angular/Java applications for Jeppesen's aviation flight planning platform, implementing navigation data processing and route optimization features
- ▹Built React frontend and Python/FastAPI backend for Signal Ocean's maritime analytics platform, tracking real-time vessel positions and freight market intelligence
- ▹Implemented event-driven architecture with Kafka for processing high-volume sensor data streams with sub-second latency requirements
- ▹Established frontend testing practices and component libraries using Jest and Cypress, reducing regression bugs by 35% across client projects
Software Engineer in Test @ Fenergo
Jun 2016 - Sep 2017
Full-time · Dublin, Ireland
- ▹Developed automated testing frameworks using C# and Selenium for enterprise KYC/AML compliance software serving global financial institutions
- ▹Built regression test suites covering critical client onboarding workflows, reducing manual testing effort by 60% and accelerating release cycles
- ▹Collaborated with cross-functional development teams to implement shift-left testing practices, catching defects earlier in the development lifecycle
Some Things I've Built
Featured Project
SkeechLive
Open-source AI design sandbox for developers. Generate React/shadcn/Tailwind components through natural language, iterate with live preview, and export to your projects. Multi-provider support (Claude, OpenAI, Ollama), zero-knowledge security — LLM credentials never touch the server.
Featured Project
LisiumComing Soon
AI-powered product development hub that unifies planning, design, and collaboration. Role-based views (Architect, PO, Developer, Designer, Tester) with AI agents that respond from each perspective. Prompt-driven workspace for user stories, designs, docs, and tasks.
Featured Project
ZorvidComing Soon
LLM-powered product analytics platform. Drop in one script to auto-capture everything — the AI identifies and names page elements, builds visual sitemaps, and lets you query data in plain English. Session replay with AI summaries, funnel analysis with drop-off explanations, and anomaly detection.
04. What's Next?
Get In Touch
I'm currently open to new opportunities and always interested in hearing about exciting projects. Whether you have a question, want to collaborate, or just want to say hi, feel free to reach out!
Based in Gdynia, Poland
Built with Next.js & Tailwind CSS