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Celeste de Klerk

@celestedeklerk1

Account Manager at IsoMetrix Software who managed key accounts, tracked customer health, and identified upsell and cross-sell opportunities.

South Africa

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At IsoMetrix Software, I managed a portfolio of accounts, maintained relationships with key stakeholders, and identified opportunities to align upselling and cross-selling with client needs. I tracked customer interactions in Salesforce and negotiated contracts.

Before that, I oversaw customer support operations at IsoMetrix Software, assessed customer health scores, and led upgrade projects to optimize software functionality for clients.

At Accfin Software, I trained clients on Tax, Secretarial, Payroll, and Time Management modules. I also provided technical support, assisted with data migration, and performed software testing and quality assurance.

Earlier, I managed community operations for the Democratic Alliance and production operations at The Antfarm. I'm currently pursuing ISTQB Foundation Level certification and ITIL 4 Foundation training.

Experience

Work history, roles, and key accomplishments

Account Manager

IsoMetrix Software

Jun 2024 - Jun 2025 (1 year)

Developed and maintained strong relationships with key stakeholders to drive customer satisfaction and retention. Managed a portfolio of accounts, identifying upsell and cross-sell opportunities, and tracked customer interactions in Salesforce.

Salesforce Contract Negotiation Upselling Cross Selling Customer Retention Forecasting Strategic Planning

Support Service Manager

IsoMetrix Software

May 2023 - May 2024 (1 year)

Oversaw customer support operations, ensuring timely issue resolution and process improvements. Worked cross-functionally to streamline escalations, conducted customer health score assessments, and led upgrade projects.

Customer Support Escalation Management Health Scores Project Management Software Implementation

Software Support Consultant

IsoMetrix Software

Jun 2022 - May 2023 (11 months)

Provided technical support to clients, diagnosing and resolving software-related issues. Maintained documentation, managed QMS requests, and compiled monthly client support reports.

Technical Support Troubleshooting Documentation QMS Client Reporting

Support Consultant/Software Analyst

Accfin Software

Feb 2018 - May 2022 (4 years 3 months)

Conducted client training on Tax, Secretarial, Payroll, and Time Management modules. Provided remote and onsite technical support, assisted in data migration, and performed software testing and quality assurance.

Customer Training Technical Support Data Migration Software Testing Quality Assurance

Professional Driver (PDP)

Uber and Taxify (now Bolt)

Jun 2016 - Sep 2017 (1 year 3 months)

Delivered professional and customer-focused transport services. Managed route optimization to ensure timely and safe travel, maintaining an average rating of 4.8/5.

Route Optimization Customer Service Safety Compliance

Video Editor

Guerdon Pictures

Aug 2015 - May 2016 (9 months)

Edited digital video footage and managed post-production processes. Created DVD menus and finalized media for distribution, working with directors to align edits with creative vision.

Video Editing Post production DVD Authoring

Community Operations Manager

Democratic Alliance (DA - Political Party)

Jan 2010 - Jun 2015 (5 years 5 months)

Led community engagement and advocacy initiatives, strengthening stakeholder relationships and driving civic participation. Managed constituency office functions, recruited and coordinated volunteers, and partnered with officials to implement policy-driven initiatives.

Community Engagement Stakeholder Relations Volunteer Management Operations Management Policy Implementation

Productions Manager

The Antfarm

Jan 2005 - Apr 2010 (5 years 3 months)

Oversaw end-to-end video and audio production, including capture, editing, and post-production using Sony Vegas Pro and DVD Architect Pro. Managed bookkeeping, budgeting, and logistics, and assisted the Director with strategic planning.

Production Management Vegas Pro DVD Architect Pro Budgeting Logistics Executive Support

Education

Degrees, certifications, and relevant coursework

University of South Africa (UNISA)

NQF Level 6, Politics, Philosophy and Economics

2007 - 2011

Attained NQF Level 6 in Politics, Philosophy and Economics via correspondence, completing 20 out of 30 modules with distinctions in multiple subjects.

DPA Training

Certificate in Pastel Partner, Accounting Software

Certificate awarded in Pastel Partner.

Professional Association of Diving Instructors (PADI)

Master Scuba Diver Trainer (MSDT), Diving Instruction

Certified as a Master Scuba Diver Trainer, qualified to certify divers to Divemaster or Master Scuba Diver levels with specializations in various diving disciplines.

Hoërskool Wonderfontein

Matriculation, General Secondary Education

Grade: Merit

Activities and societies: Academic Colours, Best performance in Afrikaans First Language, Best performance in Home Economics, Students Representative Council (SRC), First Aider during hockey and rugby matches, Responsible Action & Leadership Initiative Member (2001)

Matriculated with Merit, achieving academic colours and best performance in Afrikaans First Language and Home Economics.