Jan Killian
20 Sokolská St., Prague 2, 120 00, CZ, EU
About
I'm a Fullstack Software Engineer with strong product, team play and technology focus.
I thrive on joining project teams to take on challenges, build solutions, and grow together.
You can find me on linkedin.com/in/killian, github.com/iki, fb.com/iki23 and @jankillian.
Skills
Highlights
- 3 years of AI-assisted, spec-driven and agentic development
- 20 years of development experience, agile process, owning the outcomes
- Architecture design, technological expertise, algorithms, security, performance
- Building dev stacks, component libraries, monorepos and npm/pypi packages
- Full-remote team leading, mentoring and cooperation across time zones
Technologies
- Node.js / TypeScript / Python backend, GraphQL/REST API design, OWASP
- Next.js / React TypeScript frontend, Apollo GraphQL, Material-UI / AntD / Fluent
- SQL/NoSQL data modelling, PostgreSQL, Redis, MySQL, MSSQL, MongoDB
- GCP / AWS / Azure, GitHub/GitLab/Azure CI/CD, Kubernetes, Docker, Linux
Languages
Czech (native), English (advanced)
Experience
Software Engineer
Lead development of modern application dev stack for Czech National ICT Center
- Developed TypeScript/Node.js GraphQL API backend for existing MSSQL databases and REST APIs
- Developed Next.js frontend stack and PČR React component system based on MS Fluent UI
- Developed cross-application SSO + RBAC Auth.js package for PČR F5 BIG-IP APM OAuth server
- Setup npm packages monorepo, npm sync, Git sync and K8s deployment Azure DevOps pipelines
Software Architect
Submitted proposal for VRV IS re-implementation on a modern tech stack
- Analyzed and architected VRV IS re-implementation with MS AAD security and F&A/CRM integrations in TypeScript, Node, PostgreSQL, GraphQL, Next.js and React
- Planned and estimated features and milestones, built Dev/QA team, outlined iterative waterfall workflow and channels
- Outlined on-premise deployment, data migration and service operations
Software Engineer
Developed backends and frontends (80/20) on agile startup projects in full-remote mode
- Designed and developed backend architecture, data models, services, API and CI/CD in TypeScript, Node.js, Apollo GraphQL, Prisma, PostgreSQL, Redis, Google Cloud Run, Firebase, GitHub Actions
- Setup and developed frontend stacks and component systems in React, Material-UI, Ant Design
- Co-developed the MPV and developed Braintree / Tilled payment gateways integration on Crave
- Developed structured text extractor and parser for complex loan agreements (docx) on Simyra
Software Consultant
Prototyped GraphQL migration of complex Audi digital planning assistant application
- Developed TypeScript GraphQL backend on top of existing MSSQL database with .NET REST API
- Built containerized prototype environment and lead migration workshop for the development team
Software Engineer
Developed rapid agile applications in a full-remote team
- Co-developed frontends with React, GraphQL, Recharts, Material-UI, Swift and ARKit
- Co-developed tech stacks, GraphQL API tests and DP/ML pipeline (Python, PubSub, MongoDB)
Software Engineer
Co-developed Augmented Analytics frontend with React, Redux, Apollo GraphQL, HighCharts
Software Engineer
Developed web applications with React, Redux, Angular, Flask, REST, RAML and MySQL
- Co-developed Balfour MyYear photo manager with React, Redux, SVG
- Developed Balfour Reporting backend and frontend with Python, Flask, MySQL, Angular, HighCharts
- Developed Angular core for SmartBear SaaS platform and AlertSite service
- Developed mobile HTML5 Angular apps for Monterosa and major british TV's
Head of Software Development
Lead development projects using Python, Google App Engine and Google Apps
- Developed Google App Engine Python backends and REST APIs
- Developed tasks to synchronize Google Apps users, calendars, documents and document changes
Software Developer
Developed projects using Python, Linux and Google App Engine
- Developed prototype of p2p cloud VPN node management with Python, MongoDB, Ubuntu
- Developed prototypes of REST API backends on Google App Engine
Software Developer
Developed Intranet applications, CI, security tests, tools for reporting, integration and management
- Lead development of Intranet CMS applications in Firstspirit, Java, Jython, Beanshell
- Analyzed e-banking and server infrastructure migration to the in-house managed server platform
- Setup testing environment and SUSE Linux, WebSphere / JBoss, Oracle / Sybase infrastructure
- Developed reporting/integration/management tools in Python, Shell, Connect:Direct
- Co-developed the Application Security Test Concept based on OWASP
IT&eB Executive
Responsible for IT of Czech branch in a global network
- Planned budget and managed assets, suppliers and services
- Managed Novell NetWare 5.1, GroupWise 5.5, Windows 2k and S&M, F&A, R&D applications
- Reshaped network for global setup compliancy, cooperated in merge into global NDS
- Implemented global ZENworks management, supported global WAN, RAS, ITC and eB solutions
- Coordinated local JDE implementation, network infrastructure upgrade and country intranet setup
MIS Technician
Responsible for Brain XPPS production planning and control system, co-responsible for IT
- Managed XPPS on AS/400, provided data reports for F&A, logistics and warehouse management
- Managed Novell NetWare 4.11/5.0 network with global NDS, GroupWise, WAN, EDI, RAS solutions
- Coordinated warehouse inventories with CFO
User Support Technician (Civil Service)
Supported 1500+ employees in a 3-member team
- Installed new hardware and software, reimplemented image based workstation deployment
- Cooperated in LAN/MAN/NetWare maintenance and setting up a new college network
Network Administrator
Responsible for IT
- Implemented and managed Novell NetWare 4.11/5.1 network with ZENWorks, Windows 95/98/NT, Internet, email, backup, security and data exchange solutions
Network Administrator
Responsible for IT
- Setup Novell NetWare 3.12/4.11 network with Windows 3.1/95, Internet, email, backup, security
- Managed development of campaign building client application
Network Administrator (Scholarship Activity)
Co-administered Novell NetWare 3.11 computing lab network
Education
Interrupted in the fourth semester due to time constraints with two parallel jobs