Justyna Sliwka
@justynasliwka1
I am an experienced customer service professional delivering excellent client experiences and resolving issues.
What I'm looking for
I am an experienced and reliable customer service professional with over 10 years in retail, hospitality, and office environments, skilled at handling high volumes of customer interactions and resolving complaints with diplomacy.
I work daily with CRM systems including Salesforce and NetSuite, managing up to 100 enquiries per day, processing orders and returns, supporting escalations, and providing administrative support to management.
I have led and trained teams, managed full restaurant operations and large events of 150+ guests, and I bring strong organisation, proactive problem-solving, and a passion for delivering excellent service.
Experience
Work history, roles, and key accomplishments
Customer Service Advisor
OKA Direct Ltd
Jun 2022 - Present (4 years)
Manage up to 100 enquiries daily via phone and email, resolving issues to achieve first-contact resolution and processing orders, returns, and confidential data accurately.
Supervisor
White Stuff Ltd
Sep 2021 - May 2022 (8 months)
Oversaw daily store operations and team productivity, deputised for the store manager, and supported KPIs, training, and performance reviews to improve store performance.
Keyholder / Sales Assistant
Fat Face Ltd
Aug 2019 - Sep 2021 (2 years 1 month)
Managed opening/closing procedures, tills, and security, supported cash handling and end-of-day reconciliations, and trained staff while leading the team during management absences.
Barista / FOH Assistant
Rinkoff's Bakery
Jul 2016 - May 2018 (1 year 10 months)
Delivered high-quality service in a fast-paced café, prepared drinks, handled payments, and managed customer flow during busy periods to maintain service standards.
General Manager
Niecodzienna Bistro
Jan 2015 - May 2016 (1 year 4 months)
Managed full restaurant operations and a 15-person team, organised large events for 150+ guests, and handled budgets, rotas, recruitment, licensing, and compliance.
Assistant Manager
Grycan Ice Cream & Coffee
Oct 2013 - Jan 2015 (1 year 3 months)
Supervised daily shift operations, ensured kitchen and customer service standards, and managed opening/closing duties and stock coordination to maintain operational efficiency.
Education
Degrees, certifications, and relevant coursework
Salesforce
Salesforce Administrator Training, CRM / Salesforce Administration
Completed Salesforce Administrator training focusing on CRM administration and platform configuration.
British Red Cross
Emergency First Aid at Work Certificate, First Aid / Health & Safety
Completed Emergency First Aid at Work training certified by the British Red Cross.
Fire Marshal Certificate
Fire Marshal Certificate, Health & Safety
Awarded a Fire Marshal certificate covering fire safety procedures and evacuation coordination.
Training Qualifications UK (TQUK)
Level 2 Diploma, Event Planning
Level 2 Diploma in Event Planning awarded by TQUK covering event design, logistics, and coordination.
Training Qualifications UK (TQUK)
Level 2 Diploma, Retail Operations
Level 2 Diploma in Retail Operations awarded by TQUK covering retail processes and customer service.
Complex of Gastronomy & Trading High Schools
Hospitality Management and Event Planning, Hospitality Management and Event Planning
Studied Hospitality Management and Event Planning at the Complex of Gastronomy & Trading High Schools in Poland.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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