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Urgent! Senior ServiceNow Developer – UI Builder & App Engine Specialist Job Opening In Warsaw – Now Hiring Experis

Senior ServiceNow Developer – UI Builder & App Engine Specialist



Job description

Functieomschrijving

Senior ServiceNow Developer -> UI Builder & App Engine Specialist
100% REMOTE WORK

B2B via Experis

B2B rate: 120-160 PLN netto+VAT/h



We are seeking a Senior ServiceNow Developer who is, above all, a passionate Business Transformation practitioner and a collaborative innovator.

This is an opportunity to be at the forefront of redefining how organizations operate by disrupting traditional processes and delivering tangible business impact through technology.

As a Senior ServiceNow Developer, you will lead the design and development of custom applications using App Engine and UI Builder, working on high-profile, high-intensity international projects.

Your work will directly shape the future of our clients and help drive measurable organizational change.



Key Responsibilities:

  • Lead development using App Engine Studio, Flow Designer, and UI Builder.

  • Translate business requirements into technical solutions aligned with platform best practices.

  • Design and implement workflows, business rules, client/server-side scripts, and integrations.

  • Collaborate with stakeholders and mentor junior developers, fostering a collaborative and inclusive learning environment.

  • Optimize UI performance and user experience across applications.

  • Maintain documentation and contribute to knowledge sharing.

  • Actively participate in business transformation initiatives by proposing innovative solutions and challenging legacy approaches.



  • Qualifications & Certifications:
  • 5-7 years of ServiceNow development experience, with at least 3 years focused on App Engine and UI Builder.

  • Proficiency in JavaScript, REST/SOAP APIs, and ServiceNow scripting components.

  • Experience with Service Portal, Workspace, and Now Experience UI Framework.

  • Mandatory Certifications:
  • ServiceNow Certified System Administrator (CSA)
  • ServiceNow Certified Application Developer (CAD)
  • Certified Implementation Specialist (CIS) – ITSM, CSM, or App Engine
  • Experience using AI/GenAI tools to enhance development workflows.

  • Strong UX/UI design sensitivity and expertise in performance optimization.

  • Familiarity with ITSM, ITOM, CMDB, CSM and SPM modules.

  • Experience with Agile/Scrum or SAFe methodologies
  • Excellent communication, leadership, and client engagement skills.

  • Ability to quantify impact (e.g., performance gains, efficiency improvements).

  • Enjoys working in international teams on high-impact transformation programs.



  • We offer:
  • B2B contract via Experis
  • 100% REMOTE WORK
  • Medicover
  • Multisport
  • E-learning platform
  • Group insurance
  • header-over-companydesc

    Experis to światowy lider rekrutacji specjalistów i kadry zarządzającej w kluczowych obszarach IT.

    Z nami znajdziesz konkurencyjne oferty zatrudnienia oraz ciekawe projekty IT skierowane zarówno do ekspertów z wieloletnim doświadczeniem, jak i osób, które dopiero zaczynają swoją przygodę w branży IT.jefferson Wells is Norway's largest consulting & recruitment company with over 800 consultants.

    We offer recruitment of managers and highly qualified consultants with expertise in IT.

    Among our customers, you will find over 90 percent of Norway's largest listed companies.

    Experis is part of ManpowerGroup and has been named one of the world's most ethical companies.


    Required Skill Profession

    Computer Occupations



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