Hire the Best KDB/Q Professionals

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Sheetal R.

Google NAP Local Business Citations, Local Citation Builder & Cleanup

Hyderabad, India
$5 per hour
927 jobs
$100K+ total earnings

Labdhie Is one of the THE top provider for citation building. Not just any citations, but quality and complete ones. We provide outstanding existing citation audit, NAP correction, build citations with professional reporting and a complete quality check. Pay ONLY if you are satisfied. I believe to be culturally competent enough to work as a virtual assistant along with my husband to provide various small business support services. Some of the tasks we as a team could handle are internet based research, local citation building, Amazon FBA virtual assistant, Amazon optimization, shopify store management, Squarespace website creation and also data entry and data mining work. Though there are a whole lot of people who could do the same, I assure a honest and dedicated work. I am also quite Flexible to work with and get along. Most of my work is same day turnaround within reason. I work weekends and holidays to meet tight demands.

Reazul I.

Local Citations Expert | Audit, Cleanup, New Builds & GBP Optimization

Babuganj Upazila, Bangladesh
$15 per hour
689 jobs
$600K+ total earnings

Need accurate local citations, citation cleanup, data aggregator submissions, or Google Business Profile optimization? I specialize in manually building, auditing, and correcting business listings while maintaining consistent NAP information and preventing duplicate profiles. For the past 10 years, I have completed 1,000+ projects for businesses and agencies across the USA, UK, Canada, Australia, and Ireland. My Upwork record includes $600K+ earned, Top Rated Plus status, a 98% Job Success Score, and more than 430 client reviews. I currently support agencies including Mapranks, Icepick, and The SEO Syndicate, and I have previously worked with Local SEO Guide and LocalSpark.ai. My team and I also supported a large LocalSpark.ai project involving more than 6,000 businesses. My core services include: • Citation audits using BrightLocal, Yext, Moz Local, Whitespark, RankIntel, and manual research • Citation cleanup, including incorrect NAP, duplicate listings, outdated profiles, and unclaimed listings • New citation building across general, local, and niche-specific directories • Data aggregator and major network submissions, including Data Axle, Neustar, Foursquare, and YellowPages • Directory claiming, verification, correction requests, and follow-ups • Google Business Profile setup and optimization • White-label citation support for agencies and multi-location businesses Every project begins with checking existing listings to prevent duplicates. I manually review the business information, select relevant directories, and optimize each profile with the correct categories, descriptions, services, hours, logo, photos, and social links when supported. I also handle email verification and clearly identify listings that require phone verification, business documents, client approval, or a paid plan. I do not promise directory approval or indexing because each platform controls its own process, but I document every submission and follow up on pending listings. You will receive a detailed Google Sheet containing the directory name, submission status, live URL, login information, submission date, and notes. For larger or multi-location projects, I can also provide scalable support through my Upwork agency while remaining your main contact and handling final quality checks. If you need reliable citation or GBP support for one business, multiple locations, or ongoing agency work, please send me your project details.

Iqra A.

Data Entry Specialist | Data Annotation Expert, Image & Video Labeling

Bahawalpur, Pakistan
$7 per hour
10 jobs
$2K+ total earnings

Your model is only as smart as the person labeling its data! Bad training data is the #1 reason ML projects miss the accuracy targets. Mislabeled frames and skipped edge cases compound into models that fail on real-world inputs. I am Iqra and I treat your annotation guidelines as a contract. My passion for AI is reflected in my role as a Data Annotation Specialist with hands-on CVAT experience labeling images and video for computer vision models. I deliver pixel-accurate bounding boxes, polygons, and segmentation masks that train production-ready AI not "good enough" data that breaks your model in deployment. ✅ WHAT I ANNOTATE IMAGE ANNOTATION — Bounding boxes, polygons & polylines — Semantic & instance segmentation — Object detection & classification labeling — Landmark & keypoint annotation — Image tagging and categorization TEXT ANNOTATION — Named entity recognition (NER) — Sentiment analysis & intent labeling — Text classification & topic tagging AUDIO & VIDEO ANNOTATION — Transcription and speaker diarization — Audio event tagging & classification — Subtitle alignment and timestampin ✅ Tools I work with daily: CVAT • LabelBox • Label Studio • Roboflow • SuperAnnotate • V7 Labs • Amazon SageMaker Ground Truth • Encord ✅Who I work best with: — ML/AI startups building computer vision or NLP products — Companies running ongoing annotation pipelines who need a reliable long-term labeler — Teams doing RLHF or LLM evaluation work ✅How I work: — I start every project by reviewing your guidelines and annotating a small test batch (20-50 items) so you can verify quality before scaling — I document edge cases as I find them and ask clarifying questions in batches — not one-by-one interruptions → I deliver in your preferred format with a short QA summary noting any uncertain labels for your review — I'm available 30+ hours/week and respond to messages within a few hours during my workday. ✅What you actually get when you hire me: — 98%+ annotation accuracy verified through QA review cycles — Edge cases flagged and discussed — not silently guessed at — Consistent labeling logic across large datasets — Fast turnaround on bulk work without quality drop-off in the last 10% Send me your annotation guidelines and a sample batch — I'll return a labeled test set within 24 hours so you can verify accuracy before committing to a larger contract. Looking forward to helping you build training data your model can actually learn from. Iqra Akram

Shad Leander D.

Local Citation Builder / Link Building Specialist

Antipolo, Philippines
$6 per hour
2 jobs
$20K+ total earnings

My name is Shad and I am looking for a job where I can use my skills and expertise for Data Entry/ Directory Listing/ Local Business/ Google Places & Citation Expert. I know how to do correcting, fixing, claiming and updating already listed citations. I will make sure that I can contribute productively to your company, by taking responsibility and doing my duty.

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What does a KDB/Q freelancer do?

A kdb/q freelancer writes high-performance code in the q programming language to process and analyze massive volumes of time-series data within the kdb+ database environment. This specialist builds systems that handle real-time streaming data alongside historical records, enabling financial institutions and tech firms to query market ticks or sensor logs with microsecond latency. The work centers on optimizing columnar storage structures and crafting efficient queries that scale across distributed computing nodes. You translate complex analytical requirements into executable q scripts that power trading platforms, risk engines, and monitoring dashboards.

  • Develop and optimize q scripts, functions, and applications that execute complex analytics on large datasets. You write code that leverages the vectorized nature of the q language to perform calculations on millions of rows without iterative loops, ensuring minimal memory overhead and maximum throughput for intraday trading or industrial monitoring use cases.
  • Architect and maintain kdb+ environments that separate real-time data capture from historical storage. You configure the realtime database component to ingest live streams via TCP/IP or other protocols while managing the historical database partitions on disk, allowing users to query current market conditions and multi-year backlogs through a unified interface without performance degradation.
  • Build data ingestion pipelines and interoperability layers that connect kdb+ to external systems. You import raw datasets from CSV files or binary feeds into the workspace, then export processed results to downstream applications using tools like the KX Developer importer, ensuring data integrity and format consistency across the entire analytics workflow.
  • Test, debug, and profile q code to guarantee correctness and speed before deployment. You use integrated development environments such as KX Developer or the kdb Visual Studio Code Extension to step through logic, identify bottlenecks in query execution plans, and apply static checking or unit tests that prevent runtime errors in production trading or monitoring systems.
  • Integrate kdb+ processes with broader technology stacks using supported interfaces like Python or PyKX. You enable data scientists and analysts to run queries from Jupyter notebooks or custom Python applications, bridging the gap between specialized q logic and general-purpose data science workflows while maintaining secure and stable connections to the database server.

How to hire a KDB/Q freelancer on Upwork

Step 1: Post a job

Define your time-series data requirements clearly to attract specialists who write q code and manage kdb+ architectures. The Job Post Generator powered by Uma™, Upwork's Mindful AI helps you draft this post by interpreting a few sentences about your needs. You can write a new post, update a saved draft, or reuse an existing post to start the search.

  • Specify whether the work involves building realtime streaming processors or querying historical columnar databases to filter for relevant experience.
  • List required integrations such as Python interfaces or VS Code extensions so candidates know which development environments they must support.
  • Describe the volume of data ingestion and export tasks to help freelancers estimate the complexity of the q scripts they will author.

Step 2: Evaluate candidates

Look for portfolios that demonstrate tested q applications and working kdb+ components for both intraday and historical analysis. Uma can run instant video interviews and build shortlists with side-by-side comparisons to speed up this review process.

  • Check for evidence of debugging and profiling q code using tools like KX Developer to ensure performance and correctness in high-volume settings.
  • Verify experience with data interoperability flows where the freelancer imported datasets into kdb+ workspaces and exported results to other systems.
  • Review samples of qSQL-style queries to confirm the candidate writes expressive and efficient logic for complex analytics tasks.

Step 3: Interview your top choices

Discuss specific technical challenges related to your data architecture during interviews scheduled within Upwork Messages. Each session generates an immediate transcript and summary to help you compare responses accurately.

  • Ask how they structure q scripts to handle realtime data feeds versus batch historical loads to test their architectural understanding.
  • Request examples of how they connect external tools like Python to kdb+ processes to validate their integration skills.
  • Inquire about their approach to linting and unit testing q code to gauge their commitment to maintainable and error-free deliverables.

Step 4: Agree on scope and begin work

Set clear milestones for delivering q functions and configuring kdb+ components before starting the contract. Use Upwork Messages and the contract workroom for all communication and project management needs.

  • Define deliverables such as tested q modules or configured realtime engines to create measurable outcomes for each milestone.
  • Rely on identity verification and Hourly Payment Protection to secure your project funds while tracking work progress.
  • Establish a workflow for exporting final datasets and documenting code changes within the shared workroom for future reference.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring a KDB/Q freelancer cost?

$500-$1,500 per project is a typical range for focused KDB/Q freelancer work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

q script development

$500-$1,200/project

Entry-level to mid-level
  • Written q functions and query scripts
  • Debugged and linted code modules
  • Usage notes for implemented logic

Data ingestion setup

$1,200-$2,500/project

Mid-level
  • Configured data import flows into kdb+
  • Verified dataset integrity in workspace
  • Formatted output files for external systems

Realtime component configuration

$2,500-$4,500/project

Mid-level to senior-level
  • Set up RDB and HDB storage layers
  • Connected streaming data sources
  • Enabled intraday data access

Python interface integration

$4,500-$7,000/project

Senior-level
  • Established PyKX or API links
  • Scripted remote query capabilities
  • Validated cross-environment data flow

Full kdb+ application build

$7,000-$12,000/project

Expert-level
  • Built end-to-end analytics platform
  • Optimized q code for speed and memory
  • Deployed production-ready kdb+ instance

Frequently asked questions

Is hiring a KDB/Q freelancer worth it?

For most businesses, yes: hiring a KDB/Q freelancer is worthwhile. These specialists build high-performance time-series analytics systems that handle massive data volumes in real time. You gain access to niche q programming expertise without the overhead of maintaining a full-time team for specialized infrastructure.

How do I evaluate KDB/Q freelancer candidates?

Review their experience with kdb+ architecture, specifically how they separate realtime and historical data components. Ask them to share a sample q script that demonstrates efficient memory usage or complex data ingestion logic.

What tools do KDB/Q freelancers use?

Freelancers write code in the q language using IDEs like KX Developer or the kdb Visual Studio Code Extension. They often connect these environments to Python interfaces for broader system integration and testing.

Can KDB/Q freelancers integrate with Python?

Yes, they use PyKX or other documented Python interfaces to query kdb+ processes from external applications. This workflow allows you to leverage Python libraries while keeping heavy data processing within the kdb+ engine.