Hire the Best Invoicing Specialists

Clients rate our Invoicing Specialists
Rating is 4.7 out of 5.
4.7/5
Based on 893 client reviews
Kamil Z.

Poznan, Poland

$55/hr
5.0
13 jobs

E-Commerce Logistics & 3PL Operations Manager 10 Years Logistics (UK/CA/PL) | 146+ Clients Served Your 3PL is failing, costs are out of control, and you're expanding to Europe but don't know where to start. I'm the fractional supply chain manager who fixes broken fulfillment, cuts 3PL costs 20–30%, and builds your EU logistics infrastructure so you can scale without chaos. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I DO (3 core services for e-commerce brands) #1 — 3PL OPERATIONS & COST CONTROL → Audit 3PL performance & invoices (find hidden leaks, save 15–30%) → Fix broken fulfillment (orders delayed, inventory chaos, SLA violations) → Select & migrate to new 3PL (zero downtime cutover) → Setup TMS/WMS for warehouse operations (greenfield or migration) → Fractional 3PL manager (ongoing monthly retainer) #2 — EU MARKET ENTRY FOR US E-COMMERCE BRANDS → Full operational setup: EORI, VAT OSS, customs, incoterms → Source & vet EU 3PLs (Poland, Germany, Netherlands) → Amazon EU / Shopify fulfillment setup (FBA prep, parcel routing) → Coordinate with licensed customs brokers & tax advisors → Build your import playbooks & SOPs #3 — TMS/WMS IMPLEMENTATION (for 3PLs & fulfillment centers) → Greenfield TMS setups (road transport, 3PL, e-commerce warehouses) → Business analysis, requirements, configuration, training → Custom SQL queries, data migration, Power BI reporting → Cost-control frameworks (Lean/5S) — proven 20–30% reduction ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHO I WORK WITH E-commerce brands ($500k–$5M revenue): → Shopify, Amazon FBA, multi-channel sellers → Outsourcing to 3PL (or thinking about it) → Expanding to EU from US (or vice versa) → Frustrated with costs, delays, or lack of visibility 3PLs & fulfillment centers: → Need TMS/WMS setup or migration → Want to optimize warehouse throughput → Expanding into e-commerce fulfillment ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CREDENTIALS ✓ Certified Customs Specialist — Poland Tax Administration ✓ Transport Manager CPC — Motor Transport Institute ✓ BEng Logistics — Rzeszów University of Technology ✓ 10 years logistics (UK procurement, Canada operations, EU implementation) ✓ 146+ clients served | 691 tasks delivered | 90% completion rate ✓ €1M largest TMS project ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHY THE CROSS-BORDER ANGLE MATTERS Most US logistics consultants can't navigate EU regulations from the inside. Most EU specialists can't translate to American business expectations. I've managed transport in the UK, run procurement in Canada, and now implement systems for Central European operators. That triangulation is the product — your EU setup actually works because someone speaks all three operating cultures before paperwork moves. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CLIENT FEEDBACK (Upwork verified) "Kamil was strong support for our Poland warehouse sourcing. Communication was clear, responsive, proactive, and easy to work with." — 5★ review, April 2026 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ NEXT STEP → Fixed-scope project? Check Project Catalog below (3 productized services). → Not sure what you need? Book 30-min Consultation ($50). → Unique scope? Message me — I respond within 4 hours (EU business hours). I work with SMBs and mid-market e-commerce who want structure, not slideware.

  • SQL
  • Transportation
  • Logistics Management
  • Business Analysis
  • Freight Forwarding
  • Supply Chain Management
  • Import Procedure
  • Procurement
Muhammad K.

Alipur, Pakistan

$5/hr
5.0
2 jobs

✅ Available 24/7 Send an invite or message me on Upwork anytime Hello, I’m Muhammad Kamran Your Dedicated CRM Automation Expert & Virtual Assistant. Managing CRM systems, lead generation, follow ups and daily business operations can become overwhelming without the right support. That’s where I can help. With 5+ years of hands on experience, I assist businesses in automating workflows, organizing data, improving customer management and generating high quality leads that help drive business growth. I specialize in CRM Automation, Lead Generation, LinkedIn Outreach, Virtual Assistance and Administrative Support while ensuring accuracy, efficiency and timely delivery in every project. 🚀 Why Clients Choose Me ▪️ Professional and detail-oriented approach ▪️ Quick communication & fast response time ▪️ Reliable support with on-time delivery ▪️ Strong problem-solving and organizational skills ▪️ Experience working with startups, agencies & businesses ▪️ Focused on building long-term working relationships ▪️ Full-time freelancer committed to quality work 🖥️ CRM Platforms I Work With GoHighLevel 🔼 Housecall Pro🖥️ ServiceTitan👥 HubSpot 🧡 Zoho CRM 📊 Salesforce ☁️ Podio 📌 Pipedrive 🚀 Freshsales 🌿 Bitrix24 🧩 Close CRM 📞 Monday Sales CRM 📅 Microsoft Dynamics 365 🪟 📌 CRM Automation & Business Support Services 🖥️ CRM setup, customization & maintenance 🔄 Workflow automation & process optimization 📧 Email automation & campaign management 📊 Reporting, dashboards & data organization 🎯 Lead management & sales pipeline tracking 🔗 API integrations using Zapier & Make 👥 Customer follow-up systems & segmentation 📋 Administrative and operational support 💼 Lead Generation & Outreach Services 🔍 B2B Lead Generation 💼 LinkedIn Sales Navigator Research 📧 Cold Email Outreach Campaigns 📋 Contact List Building ✅ Verified Email Collection 📞 Appointment Setting 🤝 LinkedIn Outreach & Recruiting 🛠️ Virtual Assistant & Administrative Services 📊 Data Entry & Data Mining 🌐 Web Research & Market Research 📑 PDF to Excel / Google Sheets Conversion 📅 Calendar & Appointment Management 📧 Email Handling & Admin Support 📁 Database & File Management 📈 Advanced Excel & Google Sheets 🛒 E-commerce & Real Estate Support 🛍️ Shopify, WooCommerce, Amazon & Etsy Assistance 🏠 MLS, Zillow & Property Data Management ⚙️ Tools & Platforms Apollo, Instantly, Lemlist, Hunter, Mailchimp, Microsoft Excel, ClickUp, Trello, Canva, Slack, 🎯 My Mission I aim to help businesses save time, improve efficiency and scale operations through smart automation, organized systems and dependable virtual support. Thank you for visiting my profile. Let’s connect and discuss how I can support your business success! 🚀

  • Data Entry
  • Virtual Assistance
  • Microsoft Project
  • Data Cleaning
  • Data Mining
  • Marketing
  • Branding
  • Data Collection
  • Telemarketing
  • Digital Marketing
  • Social Media Link
  • Sales Leads
  • Brand Consulting
  • Lead Generation
  • Digital Marketing Management
  • Digital Marketing Materials
Heather S.

Tega Cay, South Carolina

$35/hr
4.4
18 jobs

Highly resourceful and determined Legal Billing Specialist with extensive experience in liaising with clients, attorneys and staff members, to generate, distribute, finalize and submit legal bills, using a wide variety of approved billing and e-billing systems. Expert in resolving billing-related issues from internal and external clients. Coordinates with partners and staff members to address questions related to billing processes.

  • Invoicing
  • Microsoft Excel
  • Accounting
  • Account Reconciliation
  • Bank Reconciliation
  • Accounts Receivable Management
  • Email Marketing
  • Accounts Payable Management
  • Data Entry
  • Customer Service
  • Social Media Management
  • Bookkeeping
Jennifer D.

Boston, Massachusetts

$25/hr
5.0
4 jobs

I’m a bilingual (English/Spanish) Project Coordinator with experience in operations support, marketing admin, and client-facing project execution. I help remote teams stay organized by managing deadlines, follow-ups, documentation, proposals, email support, and day-to-day coordination across multiple moving parts. What I can help with: • Project tracking and coordination across teams • Administrative and operations support • Client communication, follow-ups, and meeting coordination • Calendar management, scheduling, and deadline tracking • Proposals, contracts, invoices, and organized documentation • Email campaign support and marketing admin • Website update coordination with designers and developers • Google Workspace, shared drive, and file organization Proof points: • Managed 5–6 client accounts at a time in a marketing and web design agency • Wrote and scheduled email campaigns in Mailchimp and created 15+ client proposals • Coordinated across designers, programmers, SEO admins, and paid ads specialists • Manage client communication, quotes, contracts, invoices, scheduling, and expense tracking in my administrative support role If you need someone who is organized, proactive, and strong at keeping work moving without things slipping through the cracks, I can step in quickly and support your workflow. Tools: Nifty, Google Workspace, Microsoft Office, Mailchimp, Better Proposals, Notion, Pixieset, Salesforce, ADP, Workday

  • Invoicing
  • Project Management
  • Virtual Assistance
  • Data Entry
  • Calendar Management
  • Marketing Operations & Workflow
  • Client Management
  • Administrative Support
  • Google Workspace Administration
  • Email Communication
  • Business Proposal Writing
  • Project Scheduling
  • Mailchimp
  • Notion
  • Email Campaign
  • Expense Reporting
  • CRM Software
Joanne Christine A.

Butuan, Philippines

$10/hr
4.9
31 jobs

I'm a Xero-certified bookkeeper and virtual assistant currently supporting a hospitality/travel business with their end-to-end financial administration, and I'm looking to take on one additional part-time client. With my existing client, I manage and reconcile up to 48 accounts, including bank accounts, credit cards, and multi-currency merchant accounts across 15 currencies, and handle accurate, timely, UK VAT-compliant bookkeeping in Xero, along with broader admin and virtual assistant support. UK VAT & Tax Knowledge Sound working knowledge of UK VAT rules, including standard-rated, zero-rated, and exempt supplies, along with HMRC compliance requirements. Here's what I currently help my client with, and can bring to you too: 📌 Bookkeeping, Reconciliation & Reporting Entering purchase invoices and processing received payments into Xero Keeping accounts payable/receivable up to date and accurate Full monthly netting-off processes (sales invoice imports, credit notes, duplicate invoice checks) Managing and reconciling multiple bank accounts, credit cards, and multi-currency merchant accounts (e.g., AIB Merchant Services) across various currencies Downloading, sorting, and importing multi-currency merchant statements with accurate FX handling Reconciliation across payment gateways such as Barclaycard, Capital on Tap, and Opayo/SagePay, plus gift card platforms Booking channel reconciliation: Bookingcom, VRBO, Expedia, Airbnb, and similar platforms Self-billing invoice creation for supplier and affiliate platforms Marketplace income reconciliation (e.g., Apple, Google), calculating net income after platform fees Reviewing postings for consistency and accuracy across the ledger 📌 VAT & Compliance Correctly recording VAT (standard, zero-rated, exempt) in accordance with UK VAT rules Ensuring all entries are accurate, complete, and audit-ready Handling subscription invoices, vendor payment offsets, and annual reconciliations 📌 Multi-Currency GBP, AUD, CAD, CHF, DKK, EUR, HKD, JPY, MXN, NOK, NZD, PHP, SEK, SGD, USD, ZAR 📌 Tracking Ad Spend Google Ads Meta Ads Microsoft Ads 📌 Xero Expertise Chart of accounts setup and layout changes Custom coding structures tailored to your business Clean, organized books that make life easier at year-end 📌 General Bookkeeping & Virtual Assistance General bookkeeping support for businesses of any size or industry Data entry, inbox and calendar management, document organization Ad hoc admin tasks, research, and process support to keep your business running smoothly I'm detail-oriented, deadline-driven, and comfortable managing high-volume, multi-currency transactional bookkeeping across dozens of accounts and platforms. I have capacity for one more part-time client and would love to bring the same reliability and accuracy to your books. Let's chat about how I can support you!

  • Invoicing
  • Bookkeeping
  • Bank Reconciliation
  • Accounts Payable
  • Accounts Receivable
  • Financial Reporting
  • Xero
  • Microsoft Excel
  • Google Sheets
  • Property Management
  • Payment Processing
  • Account Reconciliation
  • Accounting Basics
  • Accounting
  • Accounting Software
  • Financial Accounting
  • Balance Sheet
  • Administrative Support
  • Virtual Assistance
  • Transaction Data Entry
Roselit T.

General Santos, Philippines

$8/hr
5.0
27 jobs

Are you looking for a highly-motivated, dedicated and versatile assistant? You make it right here! I help client's business by providing the below services: •INVOICING SPECIALIST - creating estimates and issue invoices in an accurate and timely manner using QuickBooks Online; ensure accurate and timely payment applications of all payments received; follow-up payments; summarizing bank statements in Excel sheet. • SHOPIFY VA - responsible for adding new products to Shopify, image editing, monitoring the inventory and consolidating the stocks, orders fulfillment, inputting data accurately in our data base and other administrative tasks. • DESIGN - creating flyers, catalogue and packaging designs in Illustrator & Canva. • QUICKBOOKS ADMIN - responsible for creating and updating thousands of products in QuickBooks Online That said, I worked with the following tools: • Quickbooks • Shopify • Oracle • Canva • Microsoft Outlook • AI • Odoo • Smartsheet • Microsoft Office • Google Sheets I have almost 5 years of successful experience with excellent reviews. I believe in hard work and honesty, and I commit to provide a highest quality of work that lead to a long-term professional relationship with all my clients.

  • Invoicing
  • Shopify
  • Product Listings
  • Virtual Assistance
  • Data Entry
  • Administrative Support
  • Online Research
  • Canva
  • QuickBooks Online
  • Order Processing
  • Product Catalog Update
  • Adobe Illustrator
  • Transaction Data Entry
  • Order Entry
  • Order Fulfillment

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