
Closed
Posted
Paid on delivery
I have an existing n8n workflow that successfully keeps data separated by tenant, yet several key pieces still need work. First, the SQL being built inside the workflow is off; some joins are missing and filters occasionally bleed across tenants. I need you to trace the node logic, fix the query builders or Function nodes involved, and make sure every generated statement respects the current tenant context. Once the data layer is solid, the same workflow must render fully interactive visuals—bar charts, line graphs, pie charts and any other sensible format—directly from the corrected query results. These charts should be clickable and drill-down ready so end-users can explore the data without leaving the n8n front-end or its embedded UI. Finally, I rely on the workflow to spot patterns and produce concise written summaries (trends, anomalies and high-level insights) that can be pushed to Slack or email as plain text or Markdown. What I’m looking for • Proven n8n experience, especially with Function/SQL nodes and custom UI extensions. • Confidence working with Postgres-style SQL and multi-tenant data models. • A demonstrable track record building interactive data visualisations. Deliverables 1. Clean, tenant-safe SQL generation inside n8n. 2. Interactive charts (bar, line, pie and additional useful types) embedded in the existing workflow. 3. Automated trend analysis and short, readable summaries. 4. A brief hand-off note so I can maintain the flow myself. When you apply, focus on relevant experience—screenshots, short videos, or repo links showing similar n8n work are perfect. I’m ready to start as soon as I find the right fit.
Project ID: 40189529
24 proposals
Remote project
Active 4 mos ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
24 freelancers are bidding on average ₹5,664 INR for this job

Hi, I can fix the SQL logic in your n8n workflow to ensure strict tenant isolation and correct joins and filters. I will add interactive charts and drill down visuals directly from the query results. I can also build automated insights and summaries for Slack or email. I have strong experience with n8n, Postgres, and multi tenant automation systems.
₹5,000 INR in 5 days
4.5
4.5

Hi, As a seasoned Full Stack Developer and Automation Expert with over 5 years of experience, I'm the ideal candidate for your n8n Workflow Debug & Visualization project. My proven proficiency in leveraging tools like n8n, Make, and Zapier for workflow automation aligns perfectly with your project requirements. Specifically, my deep understanding of data management and n8n node logic, combined with my extensive experience using Postgres-style SQL will ensure I fix any existing issues with your current workflow and generate clean, tenant-safe SQL. On top of fixing any logical errors in your workflow, I have the expertise to create custom UI extensions and interactive data visualizations tailored to your needs. I've delivered similar data visualization projects in the past - feel free to check out my portfolio for some compelling examples. In terms of deliverables, you can definitely expect clean and optimized SQL generation that respects multi-tenant contexts, interactive charts (bar, line, pie) embedded in your workflow, and concise yet insightful summaries pushed to Slack or email for easy consumption. Let's have a quick chat to discuss your project in detail. Warm regards Usama
₹3,000 INR in 4 days
4.2
4.2

Hi there, I have extensive experience with n8n workflows, including Function and SQL nodes, multi-tenant data handling, and interactive data visualization. I can help trace your existing workflow, fix the SQL generation logic so all joins and filters respect tenant boundaries, and ensure your queries are clean, correct, and maintainable. Once the data layer is solid, I can implement fully interactive charts—bar, line, pie, and additional formats—embedded directly in n8n’s front-end or custom UI. These charts will support drill-down exploration, letting users investigate trends and anomalies without leaving the workflow. I’ll also build automated trend detection and concise written summaries, formatted for Slack or email in plain text or Markdown. I can start immediately and will provide examples of previous n8n SQL/data visualization workflows to demonstrate my approach. Regards, Ahmad
₹5,000 INR in 7 days
4.2
4.2

Hello, While I don’t have direct n8n experience, I have strong full-stack development background using Java Spring Boot with MySQL, along with extensive HTML/CSS/JavaScript experience. This allows me to adapt quickly to n8n’s Function/SQL nodes and build interactive charts with drill-down capabilities. I can debug and enhance your n8n workflow to ensure tenant-safe SQL generation, interactive visualizations, and automated trend summaries. I will: • Trace and fix SQL query builders to guarantee tenant isolation. • Implement interactive charts (bar, line, pie, etc.) embedded in the workflow. • Add automated trend analysis and concise summaries pushed to Slack/email. • Provide a short hand-off note so you can maintain the workflow independently. Timeline: 2 weeks Looking forward to working on your project. Best regards, Somee
₹4,800 INR in 14 days
3.2
3.2

Hi, I’ve reviewed your project and I’m confident I can deliver exactly what you need with high quality and on-time results. I focus on clean execution, smart problem-solving, and clear communication from start to finish. Let’s discuss the details and get started. Abdul Rehman
₹3,000 INR in 7 days
2.6
2.6

Hi, Check my profile i have done many n8n workflow I will debug your flow Let Discuss !!
₹4,000 INR in 5 days
2.5
2.5

Hi, I can help you refine your existing n8n workflow so it works the way you need. Right now the SQL logic is causing issues with joins and filters bleeding across tenants, so the first step would be to trace the Function and SQL nodes, fix the query builders, and make sure every statement respects tenant boundaries. Once the data layer is solid, I’d extend the workflow to generate interactive charts—bar, line, pie, and other useful formatsthat are clickable and drill‑down ready, so users can explore results directly in the n8n front‑end. Finally, I’d add automated analysis that spots patterns, highlights anomalies, and produces short written summaries you can send to Slack or email. I have proven experience with n8n, Postgres‑style SQL, multi‑tenant models, and building interactive visualizations, and I’ll provide a clear hand‑off note so you can maintain the flow yourself after delivery. let's connect! Best Regards, Tamanna Rajput
₹3,000 INR in 10 days
1.8
1.8

Hello, What you are describing is not simply a “bug fix” inside n8n, but a data-logic problem that requires tracing how tenant context flows through the nodes and how SQL is dynamically constructed at each step. The key issue is ensuring that every query respects tenant isolation before any visualization or reporting layer is added on top. Once that logic is corrected, the charts and summaries become stable and trustworthy. My approach will be: • trace the full node logic and identify where tenant filters or joins are breaking • correct the SQL generation inside Function / query nodes so statements are fully tenant-safe • structure the output data so it can reliably feed interactive charts (bar, line, pie and drill-down views) inside the existing workflow UI • implement automated trend detection and short Markdown summaries for Slack/email • provide a short, clear hand-off note so you can maintain the workflow yourself I work extensively with SQL logic, data flows, and visualization layers, and focus on making workflows understandable, maintainable, and logically robust rather than just “working”. Bid: ₹4,800 Delivery: 4 days If you can share the current workflow (export or screenshots of key nodes), I can quickly confirm the exact correction plan before we start. Best regards, Ann-Christin
₹4,800 INR in 4 days
0.9
0.9

Hi! I’ll start by carefully walking through your existing flow and fixing the weak spot first: the tenant isolation. I’ll clean up the SQL logic so every query is built with the correct tenant context, no leaks, no edge cases, and no surprises. Once that layer is solid, everything else becomes reliable. From there, I’ll turn the query results into clear, interactive visuals right inside your setup. Charts won’t just “look nice” — they’ll be practical, clickable, and useful for exploring the data without exporting it somewhere else. Bar, line, pie, and any other format that actually helps tell the story will be included. On top of that, I’ll add an automated insight layer that watches the data and produces short, human-readable summaries: trends, unusual changes, and key takeaways. These will be ready to send to Slack or email so stakeholders get value without opening dashboards. I’ve worked with multi-tenant data, Postgres-style queries, and n8n workflows that mix data processing, visuals, and reporting. I focus on making flows understandable and maintainable, so I’ll leave you with a clean hand-off note and confidence to extend it later. Please let me know Regards
₹23,000 INR in 7 days
0.9
0.9

Dear Client, Good afternoon . I hope this proposal finds you well. This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills, (Data Analysis, Data Management, n8n, Data Processing, PostgreSQL, Data Integration, Data Visualization and SQL), as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.
₹5,000 INR in 1 day
0.0
0.0

I’m interested in supporting and improving your existing n8n workflow. While I’m still early in my professional experience, I’m comfortable working with structured logic, SQL-based data handling, and low-code automation tools, and I learn new systems quickly. I can carefully trace workflow logic, review Function and SQL nodes step by step, and help correct query structure so tenant boundaries are consistently respected. I’m methodical with debugging, validating joins, and checking filters to prevent data leakage across contexts. I’m also keen to help implement visual outputs and summaries once the data layer is stable, documenting each step clearly so the workflow remains easy to maintain. I communicate clearly, follow processes closely, and escalate issues early instead of letting them hide. If you’re open to someone reliable and detail-focused who can grow into the workflow while delivering careful, structured improvements, I’d be glad to contribute.
₹3,000 INR in 7 days
0.0
0.0

I work extensively with n8n workflows involving Function nodes, dynamic SQL generation, and multi-tenant data separation. I’m comfortable tracing node logic end-to-end to identify where joins, filters, or tenant context handling break down, and fixing query builders to ensure every generated SQL statement is tenant-safe and deterministic. Beyond the data layer, I have experience structuring workflows that transform query results into interactive, drill-down–ready visual outputs and concise written summaries that highlight trends, anomalies, and high-level insights for downstream delivery (Slack, email, or embedded UI). I’ve built complex n8n automations including an AI-powered WhatsApp admin chatbot that combines conditional logic, external services, memory/state handling, and maintainable hand-off documentation. I can start immediately and would be happy to review your existing workflow to propose a clear fix-and-improve plan
₹3,500 INR in 7 days
0.0
0.0

Having extensive experience with n8n capabilities, I am confident that I can resolve all the issues you are experiencing in your workflow, and enhance it to be more mind-blowing. I have a profound knowledge of Function and SQL nodes which will come handy in addressing the problems like the missing joins and the bleeding filters across tenants in your SQL nodes. Moreover, what sets me apart from any other candidate you're considering is my expertise in developing compelling data visualizations. Bar charts, line graphs, pie charts are just a few examples; I can conjure up any format that you fancy or might find helpful. These illustrations will be more than static visual displays; they'll be interactive, allowing you and other users to derive actionable insights as they drill down into the data. Finally, regarding the trend analysis and summary generation, automation is key. My proficiency in crafting tailor-made web scraping solutions can simplify your data analysis process while providing high-level insights with pinpoint accuracy. Moreover, these summaries can be delivered to Slack or email directly as per your preference. Also, since knowledge transfer holds paramount importance to me as well, I would provide a brief hand-off note ensuring smooth continuity even after my engagement concludes. I am eager to make your n8n workflow efficient, safe and insightful. Let's begin this journey together!
₹3,000 INR in 7 days
0.0
0.0

I have experience building and fixing n8n workflows using Function and SQL nodes with Postgres and multi-tenant data. I can clean up the SQL so tenant data stays isolated, add interactive charts with drill-downs, and generate clear trend summaries sent to Slack or email. I’ll keep everything clean and easy to maintain, with a short hand-off note at the end.
₹3,000 INR in 7 days
0.0
0.0

Geniunely doable but in this multi-tenant setup there is a very important catch! If your SQL joins aren't strictly scoped within the n8n Function nodes, you risk a "data bleed" where one client sees another's private metrics. I’m saying this because I have 5 years of experience in securing data layers and building complex automated workflows. Most freelancers would just patch the query and hope for the best, but they’d fail because they aren't accounting for the execution context that n8n requires to keep tenants truly isolated. I will rebuild your logic nodes to act as a hard "security gate" so the SQL is perfect every single time. After fixing the data, I'll plug in interactive, clickable charts right into your n8n UI so your users can actually play with their data instead of just looking at a static image. I’ll even throw in a clean Word doc manual for you so you can manage the whole thing yourself without ever needing to hire another developer to fix my work. I can genuinely assure you that this project is right up my alley because I specialize in both the "math" of the data and the "security" of the code. I am available to wrap this up as quickly as possible, likely within 3 to 4 days depending on how many charts you want to start with. Let's do it.
₹4,500 INR in 4 days
0.0
0.0

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Mayank B
₹3,000 INR in 7 days
0.0
0.0

Hello There, I’m Mohammad, an experienced n8n Automation Developer with 10+ years of overall development experience. I help businesses automate workflows, integrate systems, and reduce manual work using n8n. ? What I Can Do with n8n -Build and customize n8n workflows -API integrations using HTTP Request & Webhooks -Automate data sync between apps and databases -Schedule tasks using Cron workflows -Add business logic using IF, Switch, and Function nodes -Integrate AI / ChatGPT / LLM APIs into workflows -Send notifications via Email, Slack, WhatsApp, etc. -Handle authentication (OAuth, API keys, tokens) I’d be happy to discuss your automation needs and build an efficient n8n solution tailored to your business. Best regards, Mohammad J.
₹30,000 INR in 25 days
0.0
0.0

Greetings! my name is Kaya. I've read your project "n8n Workflow Debug & Visualization" brief . I'm an experienced graphic designer with an excellent background of PostgreSQL, Data Processing, Data Analysis, Data Integration, Data Visualization, SQL, Data Management and n8n. We can discuss more details on chat. Please see my works here: https://www.freelancer.in/u/KayaCreation I will start the work instantly, by giving initial designs and will deliver the final files you want in less than 1 day. I'm really interested in this project and like to discuss more about the project. Please drop a message if you are interested in working with me. Thanks Kaya
₹3,330 INR in 1 day
0.0
0.0

Having excelled in sports betting, my expertise has extended to designing and optimising highly valuable n8n workflows, making me an ideal candidate for your project. Working extensively across multiple bookmakers has instilled in me a profound understanding of the complexities of data management and system functioning. I have consistently maximized profitability by creating meticulously detailed, optimized systems that generate actionable insights. My seasoned skills in algorithmic design and data analysis aptly compliment your needs. In conclusion, my deep experience with betting automation speaks volumes about my ability to handle complex data structure, deliver accurate results while enabling meaningful visualizations for users. I am ready to deliver on the 4-key aspects of the project you specified, also ensuring a seamless transition post-completion so you could maintain it confidently. Looking forward to bringing unsurpassed value to your n8n Workflow.
₹3,000 INR in 3 days
0.0
0.0

I’ve built and debugged multiple n8n workflows involving SQL nodes, API integrations, and data visualization. I can quickly identify logic issues, optimize queries, and make the workflow production-ready with proper error handling and logging. I’ve also created dashboards and visual summaries from workflow data, so I can help you visualize key metrics clearly. I’ll deliver a clean, documented solution within 7 days. One of my related project is AI Chart Analytics with Automatic Chart Generation
₹3,500 INR in 7 days
0.0
0.0

Orai, India
Member since May 11, 2019
₹10000-20000 INR
₹7000-10000 INR
₹1500-12500 INR
₹10000-20000 INR
₹10000-20000 INR
$30-250 AUD
$5000-10000 USD
₹12500-37500 INR
$15-25 USD / hour
₹750-1250 INR / hour
₹12500-37500 INR
₹750-1250 INR / hour
₹1500-12500 INR
$15-25 AUD / hour
₹1500-12500 INR
$10-100 USD
₹1250-2500 INR / hour
₹1500-12500 INR
₹600-1500 INR / hour
$15-25 USD / hour
₹1500-12500 INR
$15-25 USD / hour
$30-250 USD
$25-50 USD / hour
$40-55 USD / hour