การปรับแต่งประสิทธิภาพ Jobs

We are looking for an expert full-stack developer or digital agency to build a premium, conversion-optimized local service platform from scratch, eliminating structural limitations with a robust custom implementation. Key Functional Scope: • Interactive Estimator / Cost Calculator: Multi-step dynamic calculation tool for cost estimation before lead submission. • Rigorous B2C & B2B Separation: Dedicated landing pathways for residential and commercial clients. • Advanced Project Portfolio: Filterable category grids with "Before/After" interactive visual sliders. • Local SEO Framework: Structured architecture for regional service area pages. Technical Requirements & Constraints: • Zero Page Builders Policy: Absolute prohibition of visual builder pl...

我目前在重构一套核心业务系统，后端数据库将全部改用 MySQL。为了确保这一次升级既稳又快，我需要一位真正熟悉关系型数据库的高级开发人员全程协助。 主要工作内容 • 数据库设计 – 根据现有业务逻辑，梳理并重新设计表结构、索引与约束，确保高并发下的可扩展性与数据一致性。 • 性能优化 – 对现有查询与存储过程做 Profiling，调整索引、SQL 语句与服务器参数，给出量化的性能提升报告。 • 数据迁移 – 从旧库安全迁移到新库，编写脚本、制定回滚方案，并在迁移后进行完整校验。 验收标准 1. 提供完整的 ER 图、DDL 脚本以及相关文档。 2. 在测试环境下，比现状平均查询延迟至少降低 30%。 3. 迁移过程零数据丢失且可追溯。 开发与测试均以 MySQL 8.x 为准，常用工具（如 MySQL Workbench、Percona Toolkit、pt-online-schema-change 等）请自备。沟通语言可中文或英文，期待与你一起把这套数据库做到极致。

Please guide me through the entire workflow of capturing and interpreting Windows Performance Recorder (WPR) traces with an emphasis on CPU-usage investigation. We will use Windows Performance Recorder and Windows Performance Analyzer, starting from creating the right capture profile, through loading the ETL file, to drilling into CPU Sample stacks, hotspots, and thread activity. Along the way I want clear explanations of what each graph means, how to filter noise, and how to translate the results into actionable optimization steps. To make sure the learning sticks, I’d like: • A live screen-share or recorded walkthrough (your choice) covering at least one real trace • A concise, step-by-step cheat-sheet I can reference later • A short sample report showing how...

My corporate website feels sluggish across every page, not just the homepage or a few heavy sections. I have already run detailed tests on Google PageSpeed Insights and GTmetrix, so I can share concrete metrics for you to benchmark against. What I need now is a precise, hands-on optimisation that moves those numbers into the green. Whether the fixes involve image compression, script minification, server-side caching, database tuning, or a smarter CDN setup, I’m open to the most effective path—provided the final result is a visibly faster experience for end-users on both desktop and mobile. Deliverables I will use to sign-off the project: • Updated site files or configuration changes applied to production. • Before-and-after test reports from the same tools I sup...

Ho bisogno di dare una rinfrescata al mio sito e, soprattutto, renderlo molto più veloce nel caricamento. Cosa va fatto • Aggiungere alcuni nuovi servizi, eliminarne altri non più attuali e riorganizzare le relative pagine. • Aggiornare testi e immagini per riflettere la nuova offerta e migliorare la leggibilità. • Ottimizzare le prestazioni (tempi di caricamento, weight delle immagini, caching, eventuale minificazione di script e CSS). Mi aspetto: 1. Mappa delle modifiche proposte con tempistiche realistiche. 2. Implementazione delle nuove sezioni servizi con layout coerente con il resto del sito. 3. Revisione dei contenuti esistenti: riscrittura di copy e sostituzione/ottimizzazione immagini. 4. Report finale con prima/dopo sui principal...

I run a real estate business website and need ongoing, hands-on help keeping it healthy and discoverable. The core of the job is twofold: technical upkeep and search-engine optimisation. Technical maintenance • Set up and monitor dependable, versioned backups so I can roll back instantly if something breaks. • Continually profile the site, database and server, then apply tweaks (caching, image compression, query tuning, CDN settings, etc.) that cut load time and keep Core Web Vitals in the green. SEO optimisation Alongside the engineering work, I want regular on-page SEO improvements—meta tags, structured data, keyword alignment, internal-link pruning and the like—plus concise performance reports that show ranking movement and traffic trends. Tools you’...

I need an experienced sales specialist who can position and sell infrastructure or full-scale cloud migration services to clients that want better performance from their workloads. Our technical team can execute on AWS, Azure, or GCP, so you’ll have the flexibility to tailor each pitch to the platform that best fits the prospect’s needs. Scope of work • Analyse incoming leads and identify prospects whose primary driver is performance improvement. • Shape migration proposals that clearly show the performance gains we can deliver. • Handle the full sales cycle—discovery calls, solution positioning, objection handling, and closing. • Coordinate with our engineers so that scoping documents, timelines, and estimates line up with what we promise in th...

Saya mencari montir berpengalaman yang benar-benar paham modifikasi kendaraan, khususnya modifikasi mesin. Fokus pekerjaan ini adalah meningkatkan performa mesin mobil harian saya tanpa mengorbankan keandalan maupun efisiensi bahan bakar. Ruang lingkup yang saya butuhkan: • Diagnosis kondisi mesin saat ini dan diskusi target performa. • Rekomendasi serta pemasangan komponen performa (turbo, camshaft, intake, dll.). • Penyetelan ulang ECU atau remap agar setiap komponen bekerja optimal. • Pengujian dyno atau metode serupa untuk memastikan peningkatan tenaga tercapai. • Dokumentasi rinci modifikasi dan panduan perawatan pasca-pekerjaan. Saya terbuka berdiskusi mengenai merek suku cadang, waktu kerja, serta strategi upgrade bertahap jika diperlukan. Be...

My Windows PC stutters constantly, regardless of whether it's during startup, while running programs, or even while playing games. This issue started after I recently installed new hardware. I'm looking for an experienced technician who can diagnose and fix this problem. The ideal freelancer should have: - Expertise in Windows operating systems - Experience troubleshooting hardware-related stuttering issues - Knowledge of system performance optimization - Ability to work with various hardware components Please include in your bid any relevant experience you have and an estimated timeline for completion.

I run several online projects and need an experienced developer I can count on to build, customise and keep our sites running smoothly. Each site will be responsive, fast and user-friendly, with a medium level of interactivity—think well-designed forms, dynamic elements and other user-focused features that stop short of full account systems. You’ll take a project from brief to launch, write clean HTML, CSS and JavaScript, and work comfortably in PHP or WordPress whenever that stack makes sense. Beyond the initial build you’ll handle bug fixes, performance tuning, security hardening and feature upgrades, always aiming for lean code, quick load times and rock-solid cross-device behaviour. Typical deliverables for a single assignment: • Fully responsive pages matching...

Senior Firebase, Azure Data Integration & Power Platform Automation Engineer Enterprise Project Overview The project focuses on designing, automating, deploying, and supporting enterprise-scale integrations between Firebase Firestore, Azure Data Factory (ADF), Microsoft Dataverse, Power Platform, ServiceNow, REST APIs, and enterprise cloud services. Responsibilities include secure CI/CD deployments using GitHub Actions, ARM templates, and environment-specific configuration management across Dev, Test, UAT, and Production. Core Expertise Azure Data Factory: Metadata-driven ETL, Copy Activities, Mapping Data Flows, Lookup, ForEach, Until, Execute Pipeline, Stored Procedures, REST APIs, Azure Functions, CDC, Incremental Loads, Monitoring, Triggers, Performance Tuning. Firebase Firestore...

Our job portal’s search results page is being dragged down by slow data retrieval, and it’s directly affecting the overall speed and load time of the site. I need someone who can dive in, pinpoint the bottlenecks, and deliver measurable gains without disrupting existing features. Here’s how I see the engagement: • Analyse current queries, API calls, and any middleware that sits between the database and the front-end to uncover why the data feed to the search results is sluggish. • Optimise what you find—whether that means rewriting SQL, adding smart indexing, implementing server-side caching, or fine-tuning backend code. • Validate improvements with before-and-after metrics: Time To First Byte, total page load, and server response time for typic...

Home Assistant Smart Home Integration Technical Requirements I am looking for an experienced Home Assistant developer to integrate and configure my smart home system. Scope of Work 1. Install and configure all required Home Assistant integrations. 2. Integrate the Viessmann heating system with Home Assistant. 3. Connect and configure the Viessmann actuator controller. 4. Integrate BTicino thermostats and verify reliable communication with Home Assistant. 5. Test heating zone control and ensure proper synchronization between thermostats and the heating system. 6. Integrate the UniFi network for presence detection and network-based automations. 7. Integrate the Sonos audio system into Home Assistant. 8. In a later stage, integrate the Bosch Smart Home system. 9. Create reliable automatio...

I run several production workloads on Oracle 19c and need an expert DBA who can handle three core activities for me around the clock: building new databases from scratch, tuning performance on existing instances, and carrying out version or patch upgrades without downtime to the business. Here is what I expect from you: • Database creation – end-to-end installation and configuration of fresh Oracle 19c environments, including listener setup, tablespaces, and all basic security hardening. • Performance tuning – proactive monitoring and remediation using AWR/ASH reports, SQL Tuning Advisor, indexing strategies, and statistics management to keep response times low. • Upgrade & patching – planning and executing PSU/RU installs or full-version upgrades...

I’m looking for a seasoned database administrator to take charge of our SQL Server environment for a Bank of India–related platform. The immediate focus is on keeping the core banking data layer fast, resilient, and secure. Here’s what the assignment covers: • Database optimisation – analyse slow queries, tune indexes, and improve overall throughput without disrupting live operations. • Backup & recovery – design and automate point-in-time backups, test restores regularly, and document the full recovery strategy. • Security management – harden user roles, apply the latest patches, set up auditing, and make sure compliance standards are met. You’ll be handed full access to a staging instance first, followed by production onc...