Jan
Tancibok
senior backend engineer
+421 905 261 352
jan@tancibok.sk
jan.tancibok.sk

PROFESSIONAL EXPERIENCE

Period2023-today
PositionSenior Node.js Developer
EmployerNESS
Matrix projectAnalytics platform serving 20+ companies with dashboards for agile metrics collected from Jira, GitHub and other tools. Led team of 4-12 developers implementing complex algorithms to compare teams' agile performance (sprint stability, velocity trends). Built AI-powered chatbot using LLM for data insights, websocket service for real-time updates. Scaled on AWS using Lambdas, ECS, and Batch jobs. Expanded skillset to fullstack by learning React, refactoring Redux to React Query and Context Store.
TypeScript, JavaScript, Node.js, Python, React, Jest, Cypress, AWS, docker, AI, LLM, integration
Soft SkillsTeam leadership (4-12 devs), code reviews, mentoring junior developers, cross-functional collaboration with product and design teams, agile sprint planning, technical decision making, scaling team operations
Period2013-2023
PositionProgrammer
EmployerSAP Slovensko
Project 5. 2019Data lake startup project gathering data for AI insights and ML prediction models. Built integration connectors across 5 different SAP products using REST APIs, pull jobs, and push API patterns. Developed integration algorithms using AWS Lambda and Step Functions (state machines). Full-cycle development ownership from design through deployment including unit/functional tests.
TypeScript, Node.js, Jest, Python, Golang, AWS, wsl, docker, kubernetes, kibana
Soft SkillsEnd-to-end feature ownership, self-organization, stakeholder communication, technical documentation, DevOps collaboration, startup mindset
Project 4. 2018Orchestration CD/CI, I was creating automatic deployments of cloud applications, I learned that just a few lines of python code can deploy whole application, and I also learned how to create kibana dashboards.
Python, Terraform, linux, elasticsearch, kibana, HANA
Project 3. 2016Cloud SaaS startup (<10 customers) - all-in-one solution combining e-commerce, inventory management, sales and CRM using microservice architecture. Implemented SAP Business ByDesign integration. Developed features using Java/Spring backend and SAP UI5 frontend while collaborating with distributed teams in Germany and China.
Gradle, Grunt, npm, JavaScript, Spring, Java, SAP UI5, HANA, ByDesign integration
Soft SkillsCross-cultural team collaboration, international communication (DE/CN teams), distributed team coordination, time zone management, startup environment adaptability
Project 2. 2015Integration of two e-commerce systems, using an in house integration platform. I learned REST apis, xslt transformations and intel that pre made tools are not always flexible nor performant.
OData, REST, linux, B1i, XPath, XSLT, MSSQL, HANA
Project 1. 2013Part-time job. Main task was bug solving, security patching and maintenance of banking application, used by some UK based banks.
Java, Eclipse, svn, linux system, HANA database

OTHER PROJECTS

Period03/2025-11/2025 (completed)
ProjectJarmOK
Project detailsDigital marketplace portal for city of Revúca. Assembled and led 4-member development team to build cloud application from scratch. Handled full project lifecycle: client communication, system architecture, feature definition, integration planning, and delivery. Successfully completed on schedule, currently in SLA maintenance phase.
TypeScript, Node.js, React, Azure cloud, Facebook API, Slovensko.sk, GoPay, DeepL, mapBox
Position: Product owner, architect, team lead, programmer
Ordered by: MIRRI SR, Mesto Revúca
Project link: e-jarmok.sk
Soft SkillsProduct ownership, team building (recruited 4 devs), client relationship management, requirements gathering, project planning and delivery, system architecture design, feature definition, schedule management
Period2012-2014
PositionWeb developer, on-line marketing
EmployerMirtan s.r.o.
First company page version was created as plain php, html and jquery, current one runs on wordpress. I'm also content creator. Family locksmith service company mirtan.sk
PHP, mySQL, jQuery, HTML, CSS, SEO, AdWords

EDUCATION

Period2013 - 2015
DegreeEngineer at Applied Informatics
UniversitySlovak Technical University in Bratislava, faculty FEI
Period2010 - 2013
DegreeBachelor at Informatics
UniversityComenius University in Bratislava, faculty FMFI

LANGUAGES

Slovak - native speaker
English - fluent
German - A2

FAVORITED TOOLS

Visual Studio Code, AWS, Azure devops, Gimp, Sony Vegas, Blender, InkScape, Notepad++, Google docs, Warcraft2, Ryobi one+

OTHER INTERESTS

Bible, my two sons, active sports, video games, music, technology, blogger 4bratia, sci fi and fantasy books
Driving license - B obtained in 2009


In Bratislava, 02.04. 2026

my nice photo:)
Birthday:12.05.1991
Nationality:Slovak
Fav. color:#c82428

  java     docker, k8s     xslt     ai llm     typescript     git     terraform     aws     mysql     php     python     scrum     kibana     node.js     cloud     sap hana     azure     javascript     html css  
Address:
Bagarova 22,
841 01 Bratislava
Slovakia