The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Performance Tuning is the process of evaluating and improving the efficiency of a system, such as a computer, engine, or other machine, to ensure that the system is running at its best possible performance. It involves analyzing the overall performance of a system to identify any issues that can be improved upon, such as identifying areas of improvement in software code or hardware configurations. A Performance Tuning Specialist can help you maximize your system’s performance by providing strategic advice and recommendations on how to improve the speed, reliability and scalability of your hardware and software. By identifying issues within your hardware or software, our specialist can devise an optimal performance tuning strategy that ensures your system functions at its highest level.
Here's some projects that our expert Performance Tuning Specialists made real:
Performance Tuning can help you get the best out of your existing systems and ensure that they operate optimally so you can benefit from an efficient setup. Our Performance Tuning specialists have the experience and skill necessary to help you get the most out of your system. So if you're looking to improve the speed, scalability and reliability of your system, then it's time to hire one of our Performance Tuning Specialists on Freelancer.com today!
Daripada 6,625 ulasan, klien menilai Performance Tuning Specialists 4.92 daripada 5 bintang.Performance Tuning is the process of evaluating and improving the efficiency of a system, such as a computer, engine, or other machine, to ensure that the system is running at its best possible performance. It involves analyzing the overall performance of a system to identify any issues that can be improved upon, such as identifying areas of improvement in software code or hardware configurations. A Performance Tuning Specialist can help you maximize your system’s performance by providing strategic advice and recommendations on how to improve the speed, reliability and scalability of your hardware and software. By identifying issues within your hardware or software, our specialist can devise an optimal performance tuning strategy that ensures your system functions at its highest level.
Here's some projects that our expert Performance Tuning Specialists made real:
Performance Tuning can help you get the best out of your existing systems and ensure that they operate optimally so you can benefit from an efficient setup. Our Performance Tuning specialists have the experience and skill necessary to help you get the most out of your system. So if you're looking to improve the speed, scalability and reliability of your system, then it's time to hire one of our Performance Tuning Specialists on Freelancer.com today!
Daripada 6,625 ulasan, klien menilai Performance Tuning Specialists 4.92 daripada 5 bintang.I need a small-scale adventure game that runs smoothly on PC. The heart of the project is an engaging, story-driven experience: short narrative arcs, simple yet satisfying mechanics, and a clean UI that invites players in without overwhelming them. Unity is my preferred engine, though I’m open to comparable tools if they let us iterate quickly and keep performance solid. Scope • Core loop: movement, interaction, and light puzzle elements that advance the story. • Visuals & UI: lightweight 2D or low-poly 3D assets, intuitive menus, and dialogue boxes that fit the narrative tone. • Optimization: quick load times, stable frame rate on mid-range hardware. • Build & hand-off: a playable PC executable, organized source project, and brief setup notes so ...
I’m putting together a story-driven role-playing game for PC and I need an experienced developer who can take it from concept to a solid, playable build. The core pillars are exploration, character progression, and choice-based narrative, so you should be comfortable implementing complex dialogue trees, an XP/skill system, and an expansive overworld that loads seamlessly on desktop hardware. Unity or Unreal familiarity is essential, and I’ll expect clean, well-documented code that I can review in Git. Asset creation will largely be handled on my side, but you’ll need to integrate animations, shaders, and audio cues so the world feels alive. Here’s how I see the collaboration working: • First milestone: project architecture, input handling, and a small vertic...
My dedicated Linux server suddenly jumped to 100 % CPU, cPanel accounts refuse to load, and nothing has been tweaked recently—no software updates, no new scripts, no configuration edits. I suspect something malicious slipped in or a runaway process is exhausting resources, but I need solid confirmation and a clean-up fast. What I need you to do • SSH in, profile the load, and isolate the exact processes or connections causing the spike. • Scan thoroughly for root-kits, malware, or hidden cron jobs (tools such as maldet, rkhunter, chkrootkit are welcome, but feel free to use your own). • Patch or remove whatever you find, harden the box, and restart services so every cPanel account comes back online. • Hand me a concise report detailing the root cause, the...
I need an experienced SAP professional who can walk a small group of working professionals (no more than five people) through both the fundamentals and the deeper, real-world techniques of SAP Neptune Fiori. All sessions will be delivered live over a web-conferencing tool (Zoom, Teams, or similar), so your ability to explain concepts clearly on-screen and guide hands-on exercises remotely is essential. Scope We want to start with the core architecture, basic app creation, and standard Fiori design guidelines, then progress to advanced Neptune features, custom plug-ins, performance tuning, and deployment best practices. Each topic should be illustrated with practical examples and short labs so attendees can apply what they learn straight away in their own SAP environments. Key Deliverab...
i'm attaching my project description.
What I am NOT looking for • A web designer • A theme installer • A basic WordPress developer • Someone who only works with off-the-shelf plugins • Someone without real experience integrating external REST APIs • Someone who has never handled large product catalogs (5,000+ SKUs) If you do not have real experience with API integrations and inventory synchronization, please do not apply. Project Overview I am building a B2B ecommerce. The website (WooCommerce) currently exists as a basic structure. I am looking for a senior developer who can build the technical engine of the project, not just configure plugins. The goal is to integrate supplier APIs (inventory + pricing), implement automated filtering and pricing logic, and build a scalable system. T...
Microsoft Outlook Classic on my Windows 11 laptop has reached the point where downloading new mail can literally take hours. I run two POP accounts that feed into separate .PST files (18 GB and 1.14 GB respectively). Internet speed is a steady 60 Mbps, so bandwidth is not the culprit. Steps I have already taken: • Repaired both data files with • Started Outlook in safe mode to rule out add-in conflicts • Built a fresh mail profile—though I’m not convinced I did that part correctly (I chose “Yes, I have tried this” when asked). The main pain point remains slow email download; no frequent crashes or rule failures. I’m also unsure how to archive or compact my .PST files, so they have never been trimmed. What I need: remote a...
My WordPress site needs a thorough clean-up. I have broken links scattered across the homepage, several inner pages, and even the main navigation. At the same time the site crawls on load, crashes at unpredictable moments, and the layout becomes unresponsive on some devices. These issues started after a few recent plugin updates, so conflicts are likely at the core. Here is what I need from you: • Identify and repair every broken link on the homepage, inner pages, and menu. • Diagnose plugin conflicts, update or replace problem plugins, and restore full compatibility. • Optimise performance to remove slow load times, stop the random crashes, and make sure the theme responds correctly on all screen sizes. • Deliver a concise report summarising what was found, w...
My WordPress store needs a full refresh that places great images and graphics front-and-center while loading noticeably faster on every single page. Here is what I want to achieve: • Design overhaul – apply a clean, contemporary theme, refine the colour palette, and showcase high-impact product imagery without sacrificing performance. • Site-wide speed optimisation – compress and serve images in next-gen formats, implement caching and a lightweight page-builder (or migrate away from any bloated one), fine-tune database queries, and configure a CDN so the homepage, product pages and every other view hit top scores on Google PageSpeed. • Smart internal linking – tighten up menus, breadcrumbs and cross-links so visitors reach key products in fewer clicks,...
(Solo perfiles con experiencia demostrable en diseño de esquemas PostgreSQL en producción. No busco desarrollo web, sino arquitectura y consistencia relacional.) Tengo una base de datos PostgreSQL alojada en Supabase que recoge partidos, goles, tarjetas, convocatorias, sustituciones y más. Ya está conectada a Power BI y funciona, pero quiero garantizar su integridad antes de seguir creciendo. Lo que necesito • Revisar el esquema actual y unificar los tipos de clave (codigo_equipo, codigo_jugador, codigo_acta). • Definir y aplicar PK, UK, FK e índices que mejoren consistencia y tiempos de consulta. • Detectar registros duplicados y proponer claves naturales para cada tipo de evento. • Renombrar o re-codificar columnas problem&aa...
My Wix site loads far slower than I’m comfortable with, especially on the homepage and our product pages. I can see three obvious culprits: oversized images, too many installed apps, and some animation-heavy sections with embedded video. I’d like you to go through the site and cut the bloat without hurting the design or functionality that shoppers expect. Think smart image compression, app rationalisation, and trimming or replacing animations so the visual impact remains but the weight drops significantly. A lean build that still feels branded is the goal. To keep us aligned, here’s what I need from you: • An initial speed audit (Google PageSpeed Insights or similar) establishing current load times for the homepage and a representative product page. • A ...
My niche wellness site has been live for about a year and already attracts a steady stream of visitors from around the world. The core content is in place, but it now needs a true polish—and, most importantly, a fully-functional merchandise store—to turn it into the one-stop hub I first envisioned. Here is what I need: • Merchandise store – end-to-end setup that lets visitors browse products, add to cart, and check out smoothly with Stripe / PayPal. I am flexible on platform (WooCommerce, Shopify buy-button integration, or a lightweight custom solution) as long as it blends seamlessly with the current tech stack and design. • Navigation overhaul – clearer menu structure and internal linking so users can reach any key page within two clicks. • Perf...
I need an experienced Proxmox engineer to stand up a 3-to-4-node cluster and tune it for true high availability and fast replication. All hosts will run Proxmox VE on hardware RAID 10 arrays (we are intentionally staying away from ZFS for now). The cluster must serve both Linux and Windows virtual machines and allow live migration without interruption. Each node has two network interfaces: • the primary 1 Gb/2.5 Gb port that will remain on the main LAN for user traffic • a dedicated 10 Gb card reserved exclusively for inter-node traffic and for talking to a Synology NAS. That 10 Gb backplane needs to be the path for corosync traffic, VM replication and storage I/O so bandwidth is never a bottleneck. Your work will cover the clean installation of Proxmox VE, creation of the ...
I’m looking for a seasoned Power Platform professional who can step in for 2–3 hours every day and work side-by-side with me on real production workloads. You’ll be my go-to expert for everything from sketching out fresh Canvas apps to tightening the screws on long-lived solutions in SharePoint and Dataverse. Day to day you’ll help me: • Design and build new Canvas-based Power Apps that feel polished and performance-tuned • Keep existing apps humming—bug fixes, enhancements, refactoring, and incremental feature work • Troubleshoot gnarly issues across Power Apps, SharePoint lists/libraries, Dataverse tables, and companion Power Automate flows • Experiment with Copilot and other new platform features so we can fold AI assistance into...
I'm looking for an experienced Minecraft server setup specialist to create a robust server for more than 50 players. The server should include the following custom modes: oneblock, realm, and lifesteal. Key Requirements: - Setup of oneblock, realm, and lifesteal modes - Configuration for over 50 concurrent players - Ensure server stability and performance - Provide guidance on server management Ideal Skills and Experience: - Expertise in Minecraft server setup and configuration - Experience with custom game modes - Knowledge of server optimization for high player counts - Strong problem-solving skills and reliability Please share your relevant experience and approach to this project.
I am seeking a skilled PHP Ecommerce developer to build a custom module for a third party ecommerce shopping cart. This module will maintain full sync with an external product source via API. Scope of work - Develop a custom PHP module for ecommerce site. - Implement full sync with external product source via API. - Ensure reliable data transfer and synchronization between the source and module. Developer expertise: Performance, Security, Testing procedures Programming language: PHP Ideal candidate Skills and experience: - Skilled in PHP development. - Experience with API integrations. - Knowledge of ecommerce platforms.
I’m looking for an experienced aftermarket specialist to help me squeeze more performance out of my sports car. The priority is performance upgrades, starting with an aggressive body-kit package and any complementary tweaks that will genuinely improve aerodynamics, handling, and acceleration without compromising reliability. Here’s what I have in mind: • Custom-fit body kit installation and precise alignment • Suggestions on any additional performance parts that pair well with the kit (intake, exhaust, ECU remap, suspension fine-tune, or upgraded brakes if they add measurable gains) I’ll provide the car, workspace access, and all agreed-upon parts in advance. Your role is to advise on the optimal kit, confirm compatibility, carry out the install, and road-te...
I need to move real-time data back and forth between an existing OpenVMS node and a current Windows machine, and I want to keep the link native by running it over DECnet rather than tunnelling everything through TCP/IP work-arounds. The job is purely about data transfer—no remote console work, no print or disk sharing—so the deliverable is a clean, documented method that lets the Windows side read from and write to the VMS system with minimal latency and full reliability. I am open to Phase IV or Phase V, as long as the end result connects the two operating systems seamlessly on today’s hardware or virtual infrastructure. What I expect from you • A working configuration (scripts, command procedures, small utilities—whatever you decide is most efficient) t...
I need a senior Delphi mind to craft a clear-cut strategy for moving an existing application from the Borland Database Engine to FireDAC with SQL Server as the back end. The objective is full modernization: cleaner code, easier maintenance, and freedom from legacy BDE constraints. I will spin up a dedicated testing environment first, so your plan must assume zero changes touch production until every issue is ironed out. Please lean on practical experience—show me similar projects you have already steered; past work is my main filter when choosing who to collaborate with. Deliverables • A written migration roadmap outlining phases, timelines, and required tooling • A checklist for preparing the test instance (drivers, FireDAC components, SQL Server settings, connec...
I keep seeing high RAM utilisation on both Oracle Linux and Red Hat Enterprise Linux servers and I want to understand, in depth, what is really happening inside the memory subsystem. More than a quick fix, I need a knowledgeable administrator who can walk me through each layer—kernel, user space, buffers, cache, swap—so I can read the numbers with confidence and spot the true culprits when usage spikes. Here is what I expect from our collaboration: • A live, step-by-step session (or series) where we run commands such as free, top, vmstat, sar and others you recommend, interpret every column, and relate the output to the kernel’s behaviour. • Practical explanations of how Oracle Linux and RHEL may differ in their memory reporting and tuning parameters. &bull...
I have an existing UNX universe already in daily use by the Sales team and I need an experienced SAP IDT developer who is equally comfortable with SAP S/4 HANA reporting to extend it and refresh our Web Intelligence sales dashboards. Scope of work • Universe updates: the job is strictly about modifying the current universe, not creating a new one. You will add the objects the analysts keep asking for—new dimensions, measures and hierarchies—so they can slice revenue, margin and forecast data the way they need. • S/4 HANA alignment: everything you add must pull from the correct CDS views or calculation views in S/4, with naming and aggregation rules that match the existing data model. • Report enhancement: once the universe is updated, I want at least three...
UNI Business Solutions Pvt. Ltd. is organizing a face-to-face SAP BASIS up-skilling program in Noida and is looking to hire an experienced freelance SAP BASIS trainer to lead this program. This is a classroom training engagement for a structured 4-week program designed for freshers and early-career professionals, with a strong focus on practical learning, system administration, and real-world exposure. Mode: Classroom Training (Face-to-Face) Location: Noida, India Engagement Type: Freelance Duration: 4 Weeks Participants: Freshers / Entry-level professionals Program Type: Corporate/Classroom Training UNI Business Solutions will arrange the venue and basic infrastructure. Trainer must specify technical prerequisites (systems, internet, software, VM requirements, access needs, etc.) ...
We're hiring a skilled developer with strong experience in and/or HTML5 Canvas to help build and enhance an interactive web application for front office. If you're confident working with dynamic rendering, rich text editing on canvas, and performance optimization in canvas-based environments, we'd love to hear from you. Experience with real-time collaborative editing is a plus.

 Please send over your (or Canvas) portfolio.
Wordpress website is already live, need some more work, please see attached doc for all specs. Please message me directly if you have any Qs. For Qs please prepare a full list and send at once. Thanks a lot.
I'm looking for an expert to optimize the performance of my web application. Key focus areas include: - Application performance enhancement - Resolving specific performance issues (to be discussed) Ideal skills and experience: - Proven track record in web app performance optimization - Expertise in identifying and resolving slow loading times, high memory usage, and crashes - Strong knowledge of web technologies and optimization tools - Ability to analyze and improve application performance metrics Please provide relevant experience and approach in your bids.
I want someone to fix my site optimization again. There are issues with layout shift on the page, and Elementor isn’t running reliably. It shifts all the containers every time the page loads. The site optimization is handled via Perfmatters, and caching is done with the LiteSpeed Cache plugin. Even if both are disabled, the issue still happens. So it must be related to WordPress and Elementor.
I’m integrating a small yet critical X86 routine into a larger, production-grade application and need a seasoned assembly programmer to jump in quickly, finish the code, and prove it works with a clear screenshot of the routine executing correctly. You will receive my current source and a brief on the expected behaviour. Tweak, extend, or completely rewrite the segment—whatever delivers a clean, working solution that slots straight into our existing build. Accuracy matters more than elegance, but if you can squeeze in a performance gain, all the better. Please return: • The updated .asm (or .s) file and any supporting files • A short note on what you changed and why • A screenshot of the program running and producing the expected output in a terminal or d...
Komputer saya tiba-tiba tidak lagi responsif—sistem operasi sering hang dan butuh waktu sangat lama untuk memuat aplikasi dasar. Saya membutuhkan bantuan ahli perbaikan komputer yang bisa: • Mendiagnosis penyebab utama OS tidak responsif, baik melalui kunjungan langsung maupun remote troubleshooting • Memulihkan atau memasang ulang sistem operasi tanpa menghilangkan data penting • Mengoptimalkan kinerja setelah perbaikan (update driver, pembersihan file sampah, pengaturan startup) • Memberikan panduan singkat agar masalah serupa tidak terulang Saya sudah mencoba langkah dasar seperti restart berulang dan safe mode, namun masalah tetap ada. Harap jelaskan metode kerja Anda dan perkiraan waktu penyelesaian.
Necesito ayuda especializada para resolver incidencias de software en equipos con Windows. Me interesa alguien que domine soporte de software: desde instalar y configurar programas hasta diagnosticar y solucionar fallos que afecten el rendimiento o la estabilidad del sistema operativo. Qué espero: • Sesiones remotas seguras para revisar y corregir problemas de Windows. • Explicaciones claras de cada paso aplicado, de modo que pueda replicar soluciones en el futuro. • Recomendaciones de buenas prácticas y ajustes que prevengan futuros errores. Valoro experiencia demostrable con las distintas versiones de Windows, habilidades de comunicación paciente y la capacidad de actuar con rapidez cuando surja un incidente crítico.
I run a data platform built on Spark and Python, and I need an experienced engineer who can sit with me in Pune three to four times a week (hardly 2 hours in a day) to keep it running smoothly. Most of the immediate work revolves around tracking down bugs in existing PySpark jobs, but the role naturally extends to writing fresh code when gaps appear, tightening our data-pipeline orchestration, and mapping end-to-end data lineage so every downstream consumer stays confident in their numbers. Typical day-to-day work you will tackle: • Debug production PySpark jobs and accompanying Python utilities • Refactor or rewrite modules where quick fixes will not suffice • Optimise and monitor pipeline schedules (Palantir Foundry) • Document lineage and hand off clear, repro...
Hi, I'm looking for an experienced React developer to help fix and improve my existing website. The site is already built with React, but there are some bugs, layout issues, and areas that need optimization. I'd like someone who can review the current code, identify problems, and make the necessary improvements to ensure everything works smoothly and looks good across all devices. What I need: - Fix existing bugs and errors in the React app - Improve responsiveness and UI layout - Optimize performance and code quality - Ensure compatibility across major browsers and devices You won't need to build the project from scratch - this is mainly about fixing and refining the current website. I'll provide the source code and details after hiring. If you have solid experien...
My SharePoint 2019 farm has suddenly lost its Distributed Cache functionality. AppFabric is reporting corruption, user profiles refuse to provision, and overall farm performance has taken a noticeable hit. I have not changed any system configurations nor applied any patches or updates before the failure occurred. I need an expert who can: • Diagnose and repair the AppFabric installation that underpins Distributed Cache. • Re-provision and bring the Distributed Cache service online so user profile synchronization works again. • Validate that cache hosts are correctly joined to the cluster and confirm no residual data loss or throttling issues remain. • Document the steps taken and any PowerShell commands used so I can replicate the fix in a disaster-recovery sce...
We run a webshop on WordPress + WooCommerce (Avada theme). We need an experienced performance specialist to push our Core Web Vitals clearly into the green, with a strong focus on reducing TTFB and mobile LCP, while keeping INP/CLS perfect.
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
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