Paweł Krystkiewicz
Software
Engineer

about

Product-driven Software Engineer with strong fullstack experience, combining deep technical expertise with a pragmatic, business-first mindset.

Passionate about building high-quality applications that not only work but truly serve users' needs.

Thrives in dynamic, fast-moving environments where clear thinking, independent problem-solving, and ownership make a difference.

Experienced in early-stage startups, growing products from prototype to production, scaling teams, and introducing best practices across the stack.

Focused, reliable, and collaborative — a natural partner for both technical teams and business stakeholders.

Author of Creation UI design system.

work experience

Frontend Engineer

Mar 2022 - Mar 2025

insurtech London, UK

  • Led frontend development of a new insurance underwriting platform, transforming an initial prototype into a production-grade React/TypeScript application following MRCv3 standards.
  • Solely responsible for application architecture, including critical refactoring from Create React App (CRA) to Vite to significantly improve build performance.
  • Introduced and established E2E testing with Cypress, ensuring platform stability and accelerating development workflows.
  • Actively contributed to product strategy, offering technical input during design sessions and resolving architectural challenges during project planning.
  • Extended collaboration beyond development by participating in UI/UX design refinement, improving design specification quality in Figma workflows.
  • Played a key role in scaling the frontend team and product maturity, helping secure multiple high-value contracts with UK insurers and preparing the platform for entry into the US market.
  • Advocated for adoption of best practices, modern tooling, and consistent code quality across the frontend team.

Product Engineer

Nov 2021 - Jun 2023

1y 7m @Chronos

wfm PL

  • Led the design, development, and maintenance of multiple React-based applications, including workforce management dashboards and tablet-based QR code scanning solutions.
  • Designed complete UX/UI workflows, including the main platform, internal apps, and the marketing landing page, ensuring a seamless user experience across devices.
  • Collaborated directly with clients to gather feedback, define requirements, propose solutions, and deliver new features aligned with business needs.
  • Managed iterative product improvements, handling feature rollouts, user acceptance testing (UAT), and ensuring high adoption rates.
  • Contributed to system architecture design and implementation using React, TypeScript, Node.js, and Google Cloud Platform services.

Software Engineer

Mar 2020 - Nov 2021

fintech Poznan, PL

  • Developed and maintained a range of CQRS-based microservices for a high-volume currency exchange platform, primarily using Node.js, with additional contributions in Python and Kotlin.
  • Built internal NPM libraries and developed new microservices, ensuring scalability, resilience, and alignment with business needs.
  • Contributed to frontend development by maintaining and extending the Backoffice suite (AngularJS) and InternetowyKantor.pl (React).
  • Led the initiative to integrate React into existing micro-frontend architecture within internal management applications.
  • Handled production incident resolution, actively monitoring services via Kibana and managing message reprocessing through RabbitMQ.
  • Actively participated in Agile/Scrum ceremonies, collaborating with cross-functional teams to deliver high-quality solutions.
  • Quickly gained a reputation as a "problem solver," resolving technical issues efficiently and reliably across the stack.

Fullstack Developer

Sep 2018 - Mar 2020

logistics Poznan, PL

  • Designed and developed a suite of web applications for real-time and historical tracking of courier deliveries, integrating GPS data from Microsoft SQL Server.
  • Built and maintained the entire frontend in React, while independently implementing backend services using Node.js, REST, GraphQL, and PostgreSQL.
  • Developed ETL processes to synchronize and migrate logistics data from on-premises Microsoft servers to cloud-based PostgreSQL databases.
  • Quickly transitioned from frontend-focused development to fullstack responsibilities to meet project demands, self-learning backend technologies under tight deadlines.
  • Collaborated directly with operational teams to ensure the system met dynamic business requirements and improved delivery route visibility.

Data Analyst

Jul 2017 - Aug 2018

1y 1m @Beiersdorf

cosmetics Poznan, PL

  • Built a comprehensive technical database cataloging all product components (caps, jars, labels, packaging) to support manufacturing and production planning.
  • Designed and maintained the database in MS Access, ensuring it was easily accessible and scalable for engineering teams.
  • Supported regular expansion of the database to include tooling parts essential for different product lines.
  • Collaborated closely with manufacturing engineers, providing analytical support for production optimization.

education

M.Sc. Eng in Mechatronics

Oct 2013 - Jun 2018

    skills

    Frontend: React, TypeScript, TailwindCSS, MUI, AngularJS

    Backend: Node.js (REST, GraphQL), Python (basic), Kotlin (basic)

    Databases: PostgreSQL, MySQL, MongoDB, MS SQL

    Architecture: Microservices (CQRS), ETL pipelines, Cloud platforms (AWS, GCP)

    Testing: Cypress, Playwright, E2E, Unit Testing

    DevOps (basic exposure): Vite, Webpack, RabbitMQ, Kibana

    Other: TDD, UX/UI Design Collaboration, Agile/Scrum Methodology, Client Communication, Problem Resolution

    personality

    Problem-solver mindset: Quickly identifies root causes and proposes simple, effective solutions.

    Self-driven learner: Expands skillset fast under real project pressure (Node.js, GraphQL, Cypress, backend work).

    Business-aware engineer: Understands the user and the product, not just the code.

    Collaborative communicator: Bridges gaps between tech and non-tech teams.

    Quality-focused: Strong instinct for system stability, performance, and UX clarity.

    Resilient and adaptive: Thrives in startups, chaotic environments, and evolving teams.

    languages

    English
    C1
    Polish
    Native

    Paweł Krystkiewicz @ 2025

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