Hire the Best Invoice Processing Freelancers
in the United Kingdom

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers
Oluwasola O.

Llay, United Kingdom

$20/hr
5.0
5 jobs

Message me and I’ll give you a FREE 15-minute GoHighLevel audit to identify gaps in your GoHighLevel CRM, workflow automation, lead management, attribution tracking, and marketing automation systems. Most businesses paying for GoHighLevel are using less than 30% of what the platform can actually do. Leads fall through the cracks, workflow automation breaks, pipelines become disorganized, appointment booking systems fail, and CRM workflows look active without producing measurable revenue. I fix that. I’m a GoHighLevel Automation Specialist and GoHighLevel Expert helping agencies, local businesses, real estate professionals, coaches, consultants, roofers, and service-based businesses build high-converting GoHighLevel automation systems, CRM workflow automation, lead capture systems, sales funnels, AI workflows, and customer journey automation that actually convert. Whether you need a complete GoHighLevel CRM setup, workflow troubleshooting, pipeline optimization, lead scoring system, attribution tracking setup, AI automation, or a scalable multi-location CRM system, I build clean and fully automated GoHighLevel systems that reduce manual work, improve lead conversion, and automate client follow-up from lead capture to closed clients. 🛠️ WHAT I BUILD INSIDE GOHIGHLEVEL ✅ Complete GoHighLevel Account Setup & CRM Setup ✅ GoHighLevel Workflow Setup & Workflow Automation ✅ CRM Workflow Automation & Workflow Optimization ✅ GoHighLevel Workflow Troubleshooting ✅ GoHighLevel Automation Troubleshooting ✅ GoHighLevel Pipeline Organization & Pipeline Management ✅ GoHighLevel Contact Organization & Contact Segmentation ✅ GoHighLevel Opportunity Management ✅ GoHighLevel Lead Management & Lead Nurturing ✅ GoHighLevel Lead Capture Systems & Lead Capture Pages ✅ GoHighLevel Lead Follow-Up Automation ✅ GoHighLevel Automated Follow-Up Systems ✅ GoHighLevel Customer Journey Automation ✅ GoHighLevel Appointment Booking Systems & Calendar Integration ✅ GoHighLevel Funnel Builder & Funnel Automation ✅ GoHighLevel Sales Funnel Implementation ✅ High-Converting Landing Page Design ✅ GoHighLevel Email Automation & SMS Automation ✅ Email Campaign Setup & Email Deliverability Optimization ✅ GoHighLevel Email Outreach & Marketing Automation ✅ Marketing Workflow Setup & CRM Automation ✅ Trigger Automation & Workflow Branching ✅ If/Else Logic & CRM Workflow Logic ✅ Lead Routing & Dynamic Lead Routing ✅ GoHighLevel Lead Qualification Automation ✅ GoHighLevel Lead Scoring & Automated Lead Scoring ✅ Attribution Tracking & Conversion Tracking ✅ GoHighLevel Google Ads Attribution ✅ UTM Tracking & GCLID Tracking ✅ Lead Source Tracking & Marketing Attribution ✅ GoHighLevel Funnel Attribution ✅ Campaign Tracking & Conversion Attribution Systems ✅ GoHighLevel Hidden Form Fields & URL Tracking ✅ Custom Fields Setup & Contact Record Management ✅ JavaScript Form Tracking & CRM Data Capture Automation ✅ Automated Tagging & Workflow Triggers ✅ Roofing CRM Automation & Roofing Lead Management ✅ Roofing Workflow Automation & Roofing Lead Attribution ✅ GoHighLevel Real Estate CRM & Realtor CRM Setup ✅ Realtor Pipeline Automation & Real Estate Workflow Automation ✅ Real Estate Lead Follow-Up Automation ✅ Real Estate Lead Capture & Nurture Campaigns ✅ Buyer Pipeline & Seller Pipeline Setup ✅ Long-Term Nurture Campaigns & Reactivation Campaigns ✅ Missed Call Text Back Automation ✅ Automated Appointment Booking & Booking Automation ✅ AI Automation & AI-Powered CRM Automation ✅ AI Chatbot Development & AI Assistant Development ✅ AI Agent Development & AI Voice Agent Integration ✅ AI Lead Qualification & AI Booking Automation ✅ Vapi AI Integration & Retell AI Integration ✅ SaaS Mode, Snapshot Builder & Cloneable Snapshots ✅ Multi-Realtor CRM System Setup ✅ CRM System Documentation & VA Documentation ✅ Sub-Account & Multi-Location Setup ✅ Zapier Integration, Stripe Integration & API Integration ✅ WordPress Website Design & Funnel Design ✅ A2P 10DLC Setup & Compliance ✅ SMTP, SPF, DKIM & DMARC Configuration ✅ CRM Cleanup & Automation Structure Optimization 🎯 INDUSTRIES I SPECIALIZE IN ◗ Marketing & Digital Agencies ◗ Local Service Businesses ◗ Roofing Companies ◗ Coaches & Consultants ◗ Real Estate Professionals & Realtors ◗ Appointment-Based Businesses ◗ Service-Based Businesses Experienced with: ✔ GoHighLevel CRM Systems ✔ GoHighLevel Workflow Systems ✔ Sales Funnel Builder & Funnel Implementation ✔ Lead Generation & Lead Conversion Automation ✔ Appointment Booking Systems ✔ CRM Attribution Setup & Lead Tracking Systems ✔ AI Voice Automation for Realtors ✔ Google Ads Attribution & Conversion Tracking ✔ GoHighLevel Developer Tools ✔ Zapier Integration & API Connections ✔ Facebook Ads Lead Tracking ✔ GoHighLevel SaaS Setup & White Label Systems I’ll review your current setup, identify exactly where your CRM systems and workflows are leaking leads, and recommend the fastest and most effective strategy to improve, optimize, or fully rebuild your GHL.

  • HighLevel
  • Marketing Automation
  • CRM Automation
  • Sales Funnel
  • Landing Page
  • Email Automation
  • Automated Workflow
  • Lead Generation
  • API Integration
  • Zapier
  • Email Marketing
  • CRM Software
  • Sales Funnel Builder
  • Campaign Management
  • Web Design
  • Make.com
  • Twilio
  • Customer Relationship Management
  • SaaS
  • AI Agent Development
Svitlana H.

Bexhill-on-Sea, United Kingdom

$45/hr
5.0
21 jobs

When you work with me, you keep full ownership of everything. I am a full stack developer, SaaS developer, and dashboard developer based in the UK — Top Rated Plus on Upwork, top 3% globally. I build systems that run businesses. Not prototypes. Not demos. Working platforms with real users, real transactions, and real business impact. As a full stack developer I own the entire stack — PostgreSQL database design, Node.js and Nest.js backend logic, React and Next.js frontend interfaces, REST API integrations, Stripe payment systems, and Vercel deployment. One developer. One point of contact. Everything delivered. My recent full stack developer work includes a SaaS platform for trades businesses — a complete Next.js web application with job management, client records, quoting, and role-based access, built for the specific operational workflows of field service companies. I also built a B2B admin dashboard with role-based access and full stack development across PostgreSQL, Node.js, and React — the kind of internal tool that a team of 20 opens every morning and depends on to run their day. SaaS developer. Multi-tenant. Production-ready. As a SaaS developer I've delivered a multi-tenant SaaS starter on Next.js with Stripe subscriptions, PostgreSQL via Neon, role-based access, billing portal, team invites, and seat management — fully documented, repo transferred to the client on handover. I've built a SaaS analytics dashboard with Chart.js and PDF export so stakeholders can pull reports without touching a developer. I led a full platform rebuild migrating a legacy PHP and WordPress stack to a modern Next.js and Nest.js architecture — 40% improvement in user engagement post-launch. Dashboard developer. Data that changes decisions. As a dashboard developer with a KendoReact commercial licence I build enterprise-grade interfaces that standard React developers can't replicate — advanced data grids, real-time charts, complex form systems, animated interfaces that perform under load. My dashboard developer portfolio includes a marketing analytics dashboard with AI campaign insights that reduced campaign review time by 60% for a British agency. A booking management dashboard built with React and Kendo UI gave an operations team full visibility across scheduling, availability, and resource allocation in one interface. A SaaS analytics dashboard with Chart.js and PDF export replaced a weekly manual reporting process entirely. Stripe. Payments. Automation. Payment systems are a core part of my full stack developer work. I built a Stripe internal payment interface with role-based access on Next.js — manager and staff roles, PaymentIntent flow, full audit log, zero card data stored. I delivered Stripe payment integration with webhooks and subscription billing for a SaaS platform handling upgrades, downgrades, and failed payment recovery automatically. I wire Stripe with Make, GoHighLevel, and Google Sheets so every transaction triggers the right email, CRM tag, and notification — no manual intervention. Integrations. Authentication. Infrastructure. OAuth integration setup and API authentication developer portal configuration — I've built credential flows for Google, GitHub, and custom providers using NextAuth and JWT. Google Tag Manager setup with GA4 and Meta Pixel integration across complex Next.js applications, with GTM as the management layer so non-technical team members can update tags independently. Transactional email setup with contact forms and notifications, wired to Resend and Brevo. Next.js blog and CMS setup with Sanity Studio and scheduled publishing for teams running three SEO articles per week. Technical consultant. Architecture. Audit. I work as a technical consultant for non-technical founders. My tech stack and architecture audit with written report gives founders a clear picture of what they have, what's broken, and what to build next — vendor selection, architecture decisions, developer estimate review, and a prioritised roadmap. Clients come to me as a full stack developer when they need someone who understands both the code and the business problem behind it. Next.js · React · Node.js · Nest.js · PostgreSQL · TypeScript · JavaScript · REST API · Stripe · Kendo UI · Sanity · Make · GoHighLevel · Vercel · NextAuth · Chart.js · GA4 · Meta Pixel · GTM As a Next.js performance optimization specialist I audit and improve Lighthouse scores and PageSpeed results — identifying render-blocking resources, optimising Core Web Vitals, and shipping measurable improvements that affect both user experience and search ranking. Need a mobile-ready platform? I build responsive progressive web applications that work across all screen sizes without a separate native codebase. If you need a full stack developer, SaaS developer, or dashboard developer who takes complete ownership of the technical side — architecture, payments, integrations, deployment — let's talk.

  • Node.js
  • Next.js
  • PostgreSQL
  • TypeScript
  • API
  • Supabase
  • Dashboard
  • SQL
  • PHP
  • HTML5
  • Bootstrap
  • Vue.js
  • MongoDB
  • jQuery
  • CSS
  • WordPress
  • Web Development
  • Web Design
  • Data Analytics
Kris B.

Manchester, United Kingdom

$8/hr
5.0
7 jobs

Hi, I’m Kris, a reliable Virtual Assistant from the UK with experience supporting business admin, invoicing, and online operations. I currently assist a UK business with invoice management and financial record organisation, handling around 80–100 invoices per month. My responsibilities include updating spreadsheets, organising files, tracking payments, and keeping records accurate and easy to access. I also have previous experience in customer service, office administration, and online teaching, giving me strong communication skills and attention to detail. I can help you with: • Invoice processing & organisation • Data entry & admin support • Google Sheets & Excel tracking • File management (Google Drive) • Online research & general VA tasks • Keeping records organised and up to date I’m reliable, detail-oriented, and easy to work with. I understand the importance of accuracy, clear communication, and meeting deadlines. Happy to start with a small task or trial. Let’s work together.

  • Invoicing
  • Data Entry
  • Virtual Assistance
  • Google Sheets
  • Microsoft Excel
  • Administrative Support
  • File Management
  • Copy & Paste
  • Accounts Payable
  • Bookkeeping
  • Light Bookkeeping
  • Financial Reporting
  • Document Management System
  • Data Collection
  • Data Processing
  • Email Communication
  • Customer Support
  • Microsoft Word
  • Accuracy Verification
Seamus W.

Leeds, United Kingdom

$95/hr
5.0
37 jobs

AI-powered document extraction, OCR and scraping is my core specialization. You are not paying me to experiment; you are paying for quick, reliable execution from an engineer who knows this solution space inside and out. While I have a broad background in AI (Master's from King's College London, 5+ years LLM development), my niche is turning messy, unstructured data into clean, validated databases. Why Work With Me? Many developers try to force outdated techniques onto strict data extraction problems, leading to hallucinations, broken schemas, and costly architectural redos. I stay up to date on all modern data extraction literature. I know the pros and cons of every method, from modern vision models for implicit table relationships to custom OCR fallbacks. Because I know the pitfalls of document extraction and web scraping before we even write the first line of code, I can tailor the exact right architecture for your solution from day one. No guessing. No structural redos. Just fast, production-ready execution. Experience: I have built production-grade extraction pipelines and automated scraping architectures across multiple complex domains: - Financial & Invoicing: Engineered invoice extraction pipelines achieving 99%+ accuracy across highly varied layouts, mapping dates, amounts, VAT, and line items. - Procurement & Tenders: Processed 200+ page Brazilian tender documents, identifying and extracting only specific supplier items and complex split tables from hundreds of pages of mixed content. - Sports & Large-Scale Data: Currently building a centralized database of global triathlon results, requiring massive-scale web scraping and data extraction across thousands of poorly formatted, highly variable PDFs. - Legal & Regulatory: Built an AI extraction pipeline using daily cron jobs to scrape government websites, monitor policy updates, version new documents, extract structured changes using AI, and alert affected users. Beyond Extraction: Putting Your Data to Work: Getting the data is only half the battle. I also build the systems that make your newly structured data actionable: - CRM Integrations & Data Enrichment: Automatically routing validated extraction data (like invoice details or scraped leads) directly into Salesforce, HubSpot, or custom databases to enrich your existing records. - AI Chatbots & Knowledge Bases: Building conversational agents that allow your team or your customers to "chat" directly with your extracted document archives, retrieving precise answers with source citations. - Semantic Search Engines: Transforming thousands of static PDFs into fully searchable internal databases using NLP and vector embeddings. - Automated Workflows: Setting up trigger-based logic, such as automatically generating summary reports or flagging anomalies when new documents are scraped. My Methodology: - Gold Standard Datasets: I create a benchmark dataset from day one to prove accuracy across your file types before deployment. This is crucial! - Robust Validation: I build systems with strict confidence scoring, consistency checks, and source citations to catch extraction errors before they hit your database. - Scalable Architecture: Clean, modular, queue-based systems that handle edge cases seamlessly. Core Competencies & Tech Stack: Document Processing: AI PDF Parsing, Modern OCR (Tesseract, AWS Textract, Google Doc AI), Vision Models, Layout Analysis. AI & LLMs: Structured JSON Extraction, RAG, Chatbot Development, Prompt Engineering, Hallucination Mitigation. Web Scraping: Python, FastAPI, Secure Portal Automation, Anti-Bot Bypassing, Proxy Management, Change Detection. Data & Infrastructure: MySQL, Parquet, Docker, AWS, Laravel (APIs/Queues), API Integrations, CRM Pipelines. If you have a complex scraping, document extraction, or AI integration problem, send me a message with a sample document or target website. Let's build a system that works on the first try.

  • Artificial Intelligence
  • Large Language Model
  • AI Agent Development
  • AI Bot
  • AI Chatbot
  • AI Development
  • AI Image Generation
  • AI Implementation
  • AI Model Development
  • AI App Development
  • AI Builder
  • AI Consulting
  • Odoo Development
  • AI Audio Generation
Martin U.

Derby, United Kingdom

$28/hr
4.9
10 jobs

I am a highly organised Administrative Support Specialist with experience providing office, HR, and operational support across fast-paced environments including healthcare, corporate and technology-based organisations. I bring a strong track record of delivering accurate, efficient and reliable administrative assistance while maintaining excellent communication, confidentiality and professionalism. I specialise in helping businesses stay organised, streamline processes and manage their day-to-day administrative tasks so they can focus on growth. Whether you need inbox management, document preparation, scheduling, data entry or customer support, I am committed to providing high-quality work with a fast turnaround. My background includes hands-on experience in: ✔ Administrative support (calendar management, scheduling, coordination) ✔ Document formatting, proofreading & minute-taking ✔ HR support (recruitment assistance, onboarding, compliance checks) ✔ Customer service & client communication ✔ Data entry, data management & reporting ✔ Procurement and invoice processing ✔ Office support in multidisciplinary teams ✔ Maintaining accurate records & managing databases ✔ Use of confidential systems and secure workflows I am highly proficient with: Microsoft Word, Excel, Outlook, PowerPoint, Teams Data entry systems & CRM platforms E-Rostering systems Document formatting & template creation Google Workspace tools PDF editing and file conversion Clients hire me because I am dependable, detail-focused, proactive, and able to work independently with minimal supervision. I understand the importance of deadlines, accuracy, confidentiality and professional communication — especially when handling sensitive information. My goal on Upwork is to provide efficient, polished and dependable administrative support that improves workflow and reduces operational workload for individuals and teams. If you are looking for someone to handle your admin tasks with precision, professionalism and genuine care — I'm ready to help. Let’s work together to make your workload lighter and your operations smoother. 💡 Key Skills (Add as Upwork Skill Tags) Administrative Support Virtual Assistance Data Entry Microsoft Excel Microsoft Word Calendar Management Email Management Customer Service Document Formatting HR Administration Recruitment Support Scheduling & Coordination Invoice Processing Procurement Support Record Keeping E-Rostering Minute-Taking CRM Data Entry Office Administration 📌 Employment History (Upwork-friendly summary of roles) Administrative Support Officer / Healthcare Administrator NHS & Healthcare Sector (Multiple Settings) Dates vary Provided high-level administrative and clerical support in busy healthcare departments. Managed calendars, appointments, meetings and document preparation. Processed invoices, purchase orders, and assisted with procurement tasks. Handled sensitive information, maintained accurate records and ensured compliance. Supported HR processes including recruitment coordination, onboarding and staff documentation. Responded to enquiries via phone, email and face-to-face communication with professionalism. Customer Service & Operations Assistant Private Sector / Hospitality / Retail Delivered excellent customer service in fast-paced environments. Supported daily operational tasks, stock management and communication workflows. Managed client enquiries and resolved issues efficiently. Document Support & Data Entry Specialist Created, formatted and proofread professional documents, reports and spreadsheets. Managed data entry tasks with accuracy and attention to detail. Supported administrative projects and workflow improvements. 🎓 Education & Certifications Relevant qualifications listed from your CV (e.g., Business Administration, Health & Social Care, IT courses) Mandatory training: GDPR, Safeguarding, Fire Safety, Manual Handling

  • Accuracy Verification
  • Data Entry
  • Computer Skills
  • Communications
  • Email Communication
  • PDF Conversion
  • Photo Editing
  • Form Development
  • Administrative Support
  • PDF
  • Google Workspace
  • English
  • Office 365
  • Data Collection
  • Graphic Design
Luisa T.

Banbury, United Kingdom

$35/hr
5.0
3 jobs

I'm an experienced virtual assistant with a knack for creative problem-solving and strategic business support. Proficient in managing diverse administrative tasks and creative design, with a passion for innovation and efficiency. I have experience working in corporate environments and as a freelancer supporting small start-up companies.

  • Virtual Assistance
  • Administrative Support
  • Creative Direction
  • Website Builder
  • Social Media Kit
  • Social Media Imagery
  • Canva
  • Squarespace
  • HR & Business Services
  • Business Coaching
  • Business Consulting
  • Brand Design
  • Brand Identity

How it works

Post a job for free Post a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

How do I hire a Invoice Processing Freelancer in the United Kingdom on Upwork?

You can hire a Invoice Processing Freelancer in the United Kingdom on Upwork in four simple steps:

  • Create a job post tailored to your Invoice Processing Freelancer project scope. We'll walk you through the process step by step.
  • Browse top Invoice Processing Freelancer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Invoice Processing Freelancer profiles and interview.
  • Hire the right Invoice Processing Freelancer for your project from Upwork, the world's largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Invoice Processing Freelancer?

Rates charged by Invoice Processing Freelancers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Invoice Processing Freelancer in the United Kingdom on Upwork?

As the world's work marketplace, we connect highly-skilled freelance Invoice Processing Freelancers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Invoice Processing Freelancer team you need to succeed.

Can I hire a Invoice Processing Freelancer in the United Kingdom within 24 hours on Upwork?

Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Invoice Processing Freelancer proposals within 24 hours of posting a job description.