Hire the Best Functional Programmers

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Rating is 4.5 out of 5.
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Vladimir S.

Kharkiv, Ukraine

$25/hr
4.1
18 jobs

ISTQB-certified QA Automation Engineer | Top Rated Plus | 100% JSS | 8+ Years I help SaaS companies ship with confidence. From catching edge cases before users do, to building automation suites that run in CI/CD on every commit. Core work: - Test automation: Playwright, Cypress, Selenium, REST Assured, k6 - AI product testing: LLM output validation, hallucination detection, prompt regression, AI pipeline QA - Manual QA: user flow testing, cross-browser/device, regression, exploratory - API testing: REST, GraphQL, SOAP - Mobile: React Native, iOS, Android (BrowserStack, real devices) - Accessibility: WCAG 2.1, ADA compliance Results from recent work: - 30% reduction in post-release defects for an AI-powered SaaS platform - 20% faster release cycles through structured QA process ownership - 100% JSS across 7,500+ hours billed I write bug reports developers can act on in minutes, not hours. I work async-first and integrate cleanly with Linear, Jira, GitHub Issues, or whatever you use. Available for ongoing retainers and fixed-scope projects.

  • Regression Testing
  • Functional Testing
  • API Testing
  • Web Testing
  • Software QA
  • Smoke Testing
  • Usability Testing
  • Cross-Browser Testing
  • Test Case Design
  • Bug Reports
  • Manual Testing
  • QA Testing
  • HubSpot
  • AI Platform
  • BrowserStack
  • Docker
  • CI/CD
  • Cypress
  • Automated Testing
Bilal B.

Algiers, Algeria

$3/hr
5.0
26 jobs

TLDR: Check reviews ! :) portfolio: bilalbelli.eu ๐Ÿ‘ˆ Why hiring me ? because i provide a high quality job and get the job done real quick ! Iโ€™m an experienced Software Engineer (with diploma) and Developer (not a vibe coder ! i understand and i can do everything) specializing in Python, Java, Javascript, Typescript, and modern Web technologies (Angular, Spring Boot, Node.js, Flask, Wordpress, Bootstrap, Next.js, Nuxt.js, Electron.js), and I also provide tutoring and mentoring in programming and computer science topics. I hold a strong Computer Science and Systems Engineering background, with solid experience in software development, backend & frontend engineering, system design, machine learning (AI, ML, DL, Agents) and applied problem-solving. I enjoy tackling non-standard and real-world problems, covering application design, algorithmic thinking, system architecture, and production-ready implementations, from initial analysis to clean, documented, and maintainable code. I regularly work on full-stack engineering problems, including: - Coding, - Documentation, - Manual Creation, - Scientific & Technical Writing, - Tutoring, I have hands-on experience with a wide range of technologies and tools, including Python, Java, C, JavaScript, TypeScript, HTML, CSS, SQL, and frameworks such as Spring Boot, Node.js, Flask, Electron, and Angular. I also work with relational databases (PostgreSQL, MySQL, SQL Server), and modern DevOps & infrastructure tools like Git, Docker, Jenkins, Ansible, Jira, as well as Linux environments and networking solutions (Nginx, HAProxy, DNS, virtualization). Iโ€™m comfortable learning and adapting to new technologies quickly, and my broad technical foundation allows me to switch tools and frameworks efficiently to best fit project requirements.

  • Programming Bug Fix
  • Desktop Application
  • Web Development
  • Java
  • JavaScript
  • RESTful API
  • Python
  • SQL
  • Node.js
  • Spring Boot
  • Angular
  • Tutoring
  • Full-Stack Development
  • Lead Generation
  • Back-End Development
Mian Mansoor A.

Islamabad, Pakistan

$25/hr
5.0
31 jobs

โญ 5 years building AI systems โ€ข 30+ projects โ€ข 20+ clients across US, UK, UAE, Australia & Europe I'm an AI Product Lead and Engineer who bridges the gap between business vision and technical execution. I don't just build. I own. From defining architecture and leading teams to stakeholder communication and compliance-aligned delivery, I operate as a senior member of your team, not a hired hand. If you need someone to take an AI product from idea to production and keep it running, I'm built for that. โธป ๐Ÿ’ผ What I Bring to Your Team โœ… End-to-end product ownership: requirements โ†’ architecture โ†’ delivery โ†’ iteration โœ… AI systems that are production-grade, monitored, compliant, and built to scale โœ… Team leadership and cross-functional coordination (engineers, PMs, stakeholders) โœ… Governance-aligned design: audit logging, traceability, access controls, compliance guardrails โœ… Clear communication with both technical teams and non-technical executives โธป ๐Ÿ”ง What I Build โœ… Agentic AI & Conversational Systems Multi-agent architectures (LangGraph, LangChain, RASA) with reasoning and memory Customer support bots, sales assistants, internal knowledge agents Voice AI (Retell, LiveKit, Vapi) and omnichannel deployment โœ… Full-Stack AI Applications Backend APIs: FastAPI, Django, async pipelines, microservices Frontend: React, Next.js for interfaces that make AI accessible RAG pipelines with vector DBs (FAISS, Chroma, PGVector) โœ… Production & Compliance Infrastructure Observability: OpenTelemetry, LangSmith, structured audit logging Security-first: access controls, guardrails, data traceability Docker, Kubernetes, CI/CD on AWS / GCP / Azure โธป ๐Ÿค How We Work Together I'm best suited for engagements where you need: A contract-based product lead who operates like a senior team member Someone to build and own an AI product or platform long-term A technical bridge between your business goals and engineering execution Not a good fit if you need a one-off task completed quickly. I invest in understanding your product deeply and work best in ongoing, high-ownership relationships. โธป โœจ Why Me? I've led delivery of HIPAA-compliant healthcare AI, founded and ran my own AI consultancy (15+ projects), and operated as a senior lead across enterprise and startup environments. I understand what it takes to ship responsibly: on time, at scale, and with the governance your stakeholders expect. ๐Ÿ“ฉ Tell me what you're building. I'll tell you honestly whether I'm the right fit and exactly how I'd approach it.

  • Python
  • Natural Language Generation
  • Chatbot
  • Natural Language Processing
  • Machine Learning
  • Deep Learning
  • CI/CD
  • Kubernetes
  • Artificial Intelligence
  • Chatbot Development
  • Large Language Model
  • Automation
  • AI Agent Development
  • LangChain
  • ElevenLabs
  • AI Speech-to-Text
  • AI Text-to-Speech
  • AI Builder
  • AI Product Management
KHOKON M.

Dhaka, Bangladesh

$15/hr
4.8
165 jobs

Hi, Iโ€™m a Senior WordPress Developer with 14+ years of experience specializing in Elementor, Divi, and WordPress Bug Fixing. I deliver fast, secure, and high-converting websites for businesses worldwide. I have built, redesigned, and fixed hundreds of WordPress websites, including WooCommerce stores, portfolio sites, blogs, and corporate websites. I work with all major page builders like Elementor, Divi, WPBakery, or any other you prefer. I also provide custom theme customization based on your specific needs, ensuring timely delivery at an affordable price. When I design websites, I make sure they are fast, secure, and error-free. ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€ ๐—œ ๐—ข๐—ณ๐—ณ๐—ฒ๐—ฟ: ๐Ÿ”น WordPress Website Design (Fast, Secure & Mobile-Friendly) ๐Ÿ”น WordPress Elementor Pro, Divi, & WPBakery Specialist ๐Ÿ”น Figma/PSD to WordPress Conversion ๐Ÿ”น WordPress Maintenance & Bug Fixing ๐Ÿ”น WordPress Multisite Setup & Management ๐Ÿ”น WordPress Migration & Hosting Setup ๐Ÿ”น WordPress Membership Sites ๐Ÿ”น WordPress Malware Removal & Security Hardening ๐Ÿ”น WooCommerce Store Design & Optimization Whether you need a brand-new website from scratch, cloning a competitorโ€™s site, or improving your existing siteโ€™s design and security, I provide reliable solutions that exceed expectations. ๐—ช๐—ต๐˜† ๐—ช๐—ผ๐—ฟ๐—ธ ๐—ช๐—ถ๐˜๐—ต ๐— ๐—ฒ? โœ… 14+ years of hands-on WordPress experience โœ… Delivered 1500+ Website โœ… 100+ happy clients and 5-star reviews โœ… Skilled in design, security, and hosting. So you get everything in one place โœ… Fast response and clear communication โœ… Long-term support. Many clients work with me for years Hereโ€™s what one client said: "Of all the programmers I have worked with, Khokon is simply the best. I will work with no other. He does excellent work, is an absolute pleasure to work with, always available to discuss the work and deadlines. I look forward to hiring him again!" If youโ€™re looking for a trustworthy WordPress expert to design, secure, fix, or optimize your website, letโ€™s connect and start your project today.

  • WooCommerce
  • WordPress
  • Ecommerce Website
  • WordPress Migration
  • WordPress Malware Removal
  • cPanel
  • Web Hosting
  • Website Migration
  • WordPress Multisite
  • WordPress Security
  • WordPress Bug Fix
  • WordPress Website Design
  • Elementor
  • Divi
  • WordPress Customization
Aljon S.

Rizal, Philippines

$45/hr
4.4
21 jobs

More than 11 years of working in various aspects of ERP, Retail, Accounting, and Financial Procedures. Flexible, trustworthy, proactive and results-oriented with solid accounting and computer skills. Acumatica ERP Functional Consultant โ€ข Conduct clientโ€™s business process review and system analysis to align clientโ€™s operation using ERP functionalities. โ€ข Recommends standard business practice and necessary automation to optimize operations โ€ข Prepare project documentation for a report, process and integration customizations. โ€ข Data build-up, Uploading , Configuration and Set-up and other technical function โ€ข Facilitates user training and support on how to use ERP software modules and vertical solutions. โ€ข Responsible for meeting directly with clients ERP โ€“ related needs and issues and provide the best possible solutions to enable collaborative working relationship with clients. โ€ข Support system maintenance on ERP software as well as assistance on new upgrades and testing. โ€ข Quality assurance testing of system development by programmers before actual deployment to clients. โ€ข Escalating bugs to product support for fixes and document resolution references. โ€ข Conduct status update meetings to stay informed. about the current state of the project, steering committee, project timeline, and project closeout. โ€ข Conducts Acumatica pre-sales product demonstration and facilitates POC. Acumatica Badges โ€ข Business Consultant โ€ข Inventory and Order Management โ€ข Project Accounting โ€ข Advanced CRM โ€ข Manufacturing โ€ข Field Service Business Consultant โ€ข Construction Pre-Sales Techniques โ€ข Pre-Sales Engineer EDUCATION: June 2018 โ€“ March 2012 University of Rizal System Bachelor of Science in Accountancy TRAINING ABROAD: Field Service Business Consultant March 2019 Jakarta, Indonesia

  • Finance & Accounting
  • ERP Software
  • Business Applications Consultation
  • Project Management
Mert Savas O.

Ankara, Turkey

$15/hr
5.0
99 jobs

Full-Stack Developer | Next.js, React & Excel Automation Specialist I help businesses save time and make better decisions by building web apps and automation tools that actually work. With a high Job Success Score and Top Rated status, I've delivered solutions ranging from custom Next.js dashboards to complex Excel/VBA automation systems always on time, always clean. What I do best: Excel & VBA Automation turning manual, repetitive workflows into one-click solutions Data Scraping & Processing extracting, cleaning, and structuring data from any source Next.js / React Web Apps fast, modern frontends connected to real backends Custom Dashboards & Reports making raw data actually readable and actionable I'm not the right fit for every project but if you need someone who writes clean code, communicates clearly, and delivers without hand-holding, let's talk.

  • Next.js
  • React
  • Visual Basic for Applications
  • Excel Formula
  • Microsoft Excel
  • JavaScript
  • Spring Boot
  • Desktop Application
  • Oracle
  • PostgreSQL
  • REST API
  • C#
  • Data Entry
  • Data Scraping
  • Selenium

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