Sudoku Solving Projects

I need someone to program a solution to a math/physics problem

Using the pyXSteam library (https://pypi.org/project/pyXSteam/), I need to code the solution to the following problem for my engineering class: "If U = 2841.91 kJ/kg and v = 0.8052 m³/kg, calculate P and also determine the thermodynamic state (quality)". This is basically iterating values from the embedded table, interpolating them and finding the value. Attached to this message is an Excel file, which I have used to solve it - now I need it translated to Python code. In the Excel file, you will see the logic behind solving the problem. In it, I started right away with P = 0,3MPa and P = 0,4MPa. I did that because I looked up the value for U = 2841.91 kJ/Kg in the table and found that it was in the superheated (super aquecimento) table. So, do not start assuming that it is superheated, there needs to be an explanation. The code, through iteration or something else, should be a student looking at the given values and trying to refer from table in order to calculate other values. See if it makes sense, I am here if anything is needed. Attention to nomencalture (found at the bottom of https://pypi.org/project/pyXSteam/). If you could translate everything to portuguese, that would be best, if not that's ok. Also attached is the code that DeepSeek rendered; maybe it could be of use.

opportunity

Documentary editor

Seeking an accomplished documentary editor to complete a feature in the style of Seaspiracy or Filthy Rich. Must demonstrate strong narrative structuring, pacing, sound design integration, color grading sensibility, and experience with long-form investigative or issue-driven films. Provide one relevant work sample and a clear list of assets needed to produce an accurate quote, including preferred workflow and estimated timeline. Professionalism, collaborative communication, and creative problem-solving essential. Please do not respond with a long message. Budget to be confirmed.

Build Research-Grade Coding Tasks for AI Evaluation

I need help building realistic, terminal-based STEM research tasks used to evaluate frontier AI models (GPT, Gemini, etc.). What you'll build: A self-contained coding task that looks like real research work (analyzing datasets, running simulations, validating hypotheses, comparing methods). Not a textbook problem. Each submission must include: instruction.md (workflow, inputs, outputs, success criteria) Reproducible Docker environment with data Oracle solution (solve.sh) that fully solves the task Deterministic tests for verification task.toml metadata All packaged into one zip Quality bar: Multi-step, research-grade workflow Hard enough that frontier models fail more than 80% of the time Oracle passes local tests 3 out of 3 times Objectively verifiable outputs No LLM-generated content allowed Who's a fit: STEM background (biology, chemistry, physics, ML, data science, etc.) with strong Python and Docker skills. Payout: $100 per accepted submission. Please share your research background and a code sample when applying.

Senior full stack developer | client-facing communication

Seeking a seasoned Senior Full Stack Developer with excellent client-facing communication skills. Must architect and implement robust web applications, handle frontend and backend development, optimize performance, ensure security, and integrate APIs. Responsibilities include translating client requirements into technical solutions, leading code reviews, mentoring junior developers, and delivering clear progress updates. Ideal candidate demonstrates strong problem-solving, stakeholder management, and a track record of successful end-to-end project delivery.

Looking for a Web Developer

I’m looking for a skilled and motivated web developer partner to collaborate on building a new project/business idea. I’m seeking someone interested in long-term growth, ownership, and teamwork rather than only freelance contract work. About the Project We are planning to build a modern web-based platform focused on solving real user problems and scaling into a sustainable business. Full project details can be discussed privately after an initial conversation. Who I’m Looking For Strong experience in frontend and backend web development Knowledge of modern stacks such as: React / Next.js / Vue Node.js / Express PHP / Laravel Python / Django SQL / NoSQL databases Experience with deployment, APIs, and scalable architecture Good communication and problem-solving skills Interested in partnership / startup mindset

Frontend Developer (React / Electron / Web3)

We are building a next-generation Web3 decentralized browser and looking for a talented Frontend Developer with strong experience in React.js, Electron, and modern Web3 technologies. You will help create a fast, secure, and modern browser experience connecting users to decentralized applications, blockchain networks, wallets, and privacy-focused services. Responsibilities Develop and maintain browser frontend features using React.js, Electron, and TypeScript Build responsive, scalable, and high-performance UI components Implement Web3 integrations including wallets, blockchain APIs, and smart contract interactions Work closely with backend and blockchain engineers Optimize Electron application performance and memory usage Create intuitive UX for tabs, settings, extensions, wallet management, and decentralized browsing Maintain clean and reusable architecture Participate in code reviews, debugging, and technical decisions Requirements Strong experience with React.js, JavaScript (ES6+), and TypeScript Experience building desktop apps using Electron Experience with Web3 libraries such as ethers.js, web3.js, or WalletConnect Understanding of blockchain, dApps, and crypto wallets Strong frontend architecture knowledge Familiarity with Chromium-based environments Experience with Git and CI/CD workflows Strong problem-solving skills Bonus Skills Experience building browsers or browser extensions Familiarity with IPFS or peer-to-peer technologies Knowledge of browser security and privacy-focused architectures Experience with decentralized identity systems Passion for modern crypto/Web3 UX What We’re Looking For We want someone passionate about the future of the decentralized internet — a developer who enjoys solving challenging frontend problems and building products that redefine how users interact with the web. If you love React, Electron, Web3, and browser technologies, we’d love to hear from you. Apply with: Relevant React/Electron projects Web3 or blockchain-related experience GitHub or portfolio links

STR Property Manager Remote - Europe-The Americas

Remote STR Property Manager for Europe & the Americas: Seeking an experienced remote manager to oversee a small portfolio of short-term rentals. Responsibilities include managing reservations, coordinating guest communications, overseeing maintenance and turnovers, optimizing occupancy and revenue, and upholding high property standards. Ideal candidates are detail-oriented, highly organized, adept at problem-solving, and experienced with booking platforms and local vendors. Proven track record in delivering exceptional guest experiences and efficient remote operations required.

Senior Software Engineer for Technical Interviews

We are looking for a senior software engineer with strong communication skills to support technical interviews and candidate evaluations. Requirements * 5+ years of software development experience * C1–C2 level English communication skills * Experience conducting technical interviews or candidate assessments * Strong analytical and communication abilities * Comfortable discussing software architecture, engineering practices, and technical problem-solving Preferred * Native Spanish speaker (bonus, not required) * Experience mentoring or leading engineering teams Ideal Candidate This role is ideal for experienced developers who enjoy technical discussions, interviewing, mentoring, and evaluating engineers more than daily hands-on coding work. Responsibilities * Conduct technical interviews * Evaluate candidate skills and communication * Provide structured interview feedback * Help improve hiring quality and interview processes Remote work available. ***Prefer*** Latam and Europe developers

Senior Integration Engineer - Remote, Part Time

Description: We are looking for a Senior Integration Engineer with 6+ years of experience designing and implementing cloud-native integration solutions and enterprise platforms. The role involves building scalable data pipelines, event-driven systems, and API integrations using Azure Data Factory, Logic Apps, Service Bus, and Azure Functions. Strong English communication is required. Responsibilities: Architect and develop data pipelines and event-based integrations in Azure. Build secure API-driven integrations using REST, SOA, OAuth2, and JWT. Implement CI/CD pipelines with Azure DevOps or GitHub. Optimize SQL/NoSQL databases and data transformation processes. Integrate enterprise systems including MS 365 and CMS platforms. Collaborate in Agile Scrum teams and ensure high-quality, reliable, and secure solutions. Requirements: 6+ years of experience in cloud integration and enterprise platforms. Strong expertise in Azure Integration Services, Azure Data Factory, Logic Apps, Service Bus, Azure Functions. Proficient in C#, Python, NodeJS, PowerShell, SQL, TypeScript. Fluent in English (spoken and written). Laptop with Intel Core i9 12th gen or higher and NVIDIA GPU higher than RTX 3080. Preferred: Experience with hybrid cloud architectures, DevSecOps, and CI/CD automation. Strong problem-solving skills and attention to detail. Familiarity with Docker, Kubernetes, monitoring, and logging systems. Project Type: Long-term contract with potential for full-time engagement.

Full-Stack Engineer for Scalable SaaS Platform Development

Summary I'm looking for an experienced Full-Stack Engineer to help build and maintain a modern cloud-based SaaS platform used by a large global user base. This is a long-term opportunity for someone who enjoys working on scalable applications, distributed systems, and high-performance web platforms. Project Overview The platform focuses on digital services, customer management, APIs, and modern web experiences. You'll be involved in both frontend and backend development, collaborating closely with me on feature development, production improvements, debugging, and system scalability. The work includes developing user-facing interfaces, integrating APIs, improving system reliability, and contributing to architecture decisions for a growing product. Responsibilities - Develop and maintain frontend applications using modern JavaScript frameworks (preferably Vue.js) - Build backend services and RESTful APIs - Write clean, reusable, maintainable, and well-documented code - Participate in code reviews and debugging production issues - Work with distributed systems and microservice-based architecture - Collaborate on feature planning, implementation, testing, and deployment - Improve application performance, scalability, and reliability - Troubleshoot time-critical production issues when necessary Required Skills - 4+ years of experience with Vue.js or similar modern JavaScript frameworks - Strong experience with TypeScript, Java, or another OOP language - Solid understanding of RESTful APIs - Strong knowledge of modern JavaScript (ES2015+) - Experience with HTML5 and CSS3 - Understanding of distributed systems and microservices - Good communication skills in English Bonus Skills Experience with any of the following is a plus: - AWS - Redis - Kafka - Cassandra - Docker - Jest, Karma, Nightwatch.js, or other testing frameworks What I'm Looking For - Someone proactive who takes ownership of their work - A developer comfortable working independently - Strong problem-solving skills - Ability to suggest improvements and new ideas - Someone who enjoys building scalable systems and learning new technologies Project Details - Remote work - Flexible working hours - Long-term collaboration possible If you have experience building scalable SaaS products and enjoy working across the full stack, I'd love to hear from you. Please include examples of similar projects or platforms you've worked on.

Marketing Assistant - 10 Hours per week - UK Based

About the Role We’re looking for a proactive and detail-oriented Marketing Assistant to support a fast-growing training and coaching business. This is a varied role - working alongside our Marketing Manager - ideal for someone who enjoys both creative and administrative tasks, and thrives in a dynamic, fast-paced and high-performance environment. You’ll play a key role in supporting marketing activity, content delivery, and event coordination - helping ensure everything runs smoothly behind the scenes. ---------- Key Responsibilities Social Media & Content Support - Schedule and manage social media content across platforms (LinkedIn & Instagram) - Assist with content creation (e.g. formatting posts, captions, basic design edits) - Repurpose existing content into different formats (e.g. turning videos into posts) Marketing & Admin Support - Provide administrative support for marketing campaigns and launches - Assist with email marketing setup and scheduling (where required) - Maintain organised systems and files Events & Workshops - Support the coordination of both online and in-person events, workshops, and programmes - Manage attendee lists, communications, and logistics - Assist with post-event follow-ups Ad Hoc Support - Provide flexible support across the business as needed - Help keep projects on track and deadlines met -------- About You We’re looking for someone who is: - Highly organised with strong attention to detail - A clear and confident communicator with excellent written English - Proactive and able to take initiative without constant direction - A strong critical thinker who can problem-solve and make sound decisions - Comfortable managing multiple tasks and priorities - Tech-savvy and quick to learn new tools - Video editing skills appreciated but not necessary Desirable (but not essential) - Experience with social media scheduling tools - Familiarity with the Canva platform - Previous experience supporting events or online programmes - Video editing experience Why Join Us? - Flexible, remote working - Opportunity to work within a high-performance, purpose-driven and exciting brand - Varied role with scope to grow and develop -------- If this sounds like a great fit, we’d love to hear from you. Even if you are just starting out in marketing, but have some of the skills and experience listed, don't hesitate to get in touch. Please send us a proposal with a bit of information about you and your background, as well as your availability. UK Based only, unless you are a native/fluent English speaker based abroad, but willing to work UK hours.

opportunity

CRM & Customer Support System Implementation Specialist

Project Overview We are building a complete customer service operation from scratch and are looking for an experienced professional (or small team) to design, implement, and deploy an end-to-end system. This includes CRM setup, customer support/ticketing system, communication integrations, reporting dashboards, and workflow automation. Scope of Work • Set up and configure a CRM system (HubSpot) • Implement a customer support/ticketing system (Zendesk, Freshdesk, or equivalent) • Integrate communication channels (Email, Phone, Live chat, (WhatsApp/social) Chatbot • Design workflows (Ticket routing, SLA tracking, Escalation processes) • Build reporting dashboards (Response time, Resolution time, KPIs) • Create knowledge base (internal + customer-facing) • Ensure all systems are integrated and working seamlessly Key Deliverables • Fully configured CRM system • Functional support/ticketing platform • Omnichannel communication setup • Automated workflows and SLAs • Reporting dashboards • Documentation (SOPs / system usage guides) • Basic team training (optional but preferred) Required Skills & Experience • Proven experience implementing CRM systems • Strong background in customer support platforms • Experience with API integrations and automation tools • Ability to design scalable workflows and processes • Experience building dashboards and reporting systems • Strong problem-solving and system architecture skills Preferred Experience • Experience building systems from scratch • Knowledge of customer experience (CX) frameworks • Experience working with service-based businesses or contact centres What We’re Looking For • Someone who can take ownership of the full system setup • Practical, solution-focused approach • Clear communication and structured delivery • Ability to recommend the best tools (cost vs performance) Application Requirements • Examples of similar systems built • Recommended tools/platforms and justification • Estimated timeline • Proposed approach • Rate (fixed)

opportunity

Web Designer / WordPress Expert / SEO

⚠️ Important: Only candidates who submit both their resume and a portfolio of their work will be considered for an interview. Applications without a portfolio will not be reviewed. We are a marketing agency based in Boston, MA and proudly serving businesses across the Greater Boston area, from the heart of Downtown Crossing to the innovation hubs of Cambridge and the Seaport District. We're looking for a Master WordPress web designer and SEO professional to join our team and assist with client website maintenance and development along with SEO growth. We are looking for an individual who is passionate, focused, responsible, and professional. We also like self-starters who thrive on problem-solving and seeking new technologies and platforms while performing under pressure. As our company expands we seek a professional web designer who we can count on for timely and professional work. Most importantly, we are looking for an individual who is looking to grow with our company and join our team of experienced business experts. There is no limit with us. As we grow, so you will grow too. What you'll do: ________________ - Create awesome landing pages that drive leads for sales - Visually refresh our websites regularly to take advantage of new technologies and keep visitors engaged - Maintain our clients' sites in WordPress, applying best practices in web compliance and SEO - Troubleshoot all WordPress related issues including front end, server side, hosting, DNS, CPanel etc. Must have: ___________ - Proven work experience as a web designer with a strong portfolio - Strong Elementor theme building skills - Demonstrable graphic design skills - Experience in creating wireframes, storyboards, user flows, process flows and site maps - Proficiency in Photoshop, Illustrator or other visual design and wire-framing tools - People skills and ability to explain complicated aspects of the build to clients - Task, documentation, and time management skills Bonus points if you have the following: _______________________________________ - Knowledge of programming languages including PHP, JavaScript, HTML, CSS Knowledge, skills, and abilities: --------------------------------------------- - Knowledge in Search Engine Optimization - Expert Level in WordPress Customization - Fast learner and able to work with minimum supervision - Have a strong sense of initiative and drive (This is a must!) - Good oral and written English communication skills - Detail-oriented with the ability to work in a fast-paced environment - HTML5, CSS3 knowledge is a bonus Job Duties and Responsibilities: --------------------------------------------- - Website Maintenance (adding new content and products, editing and replacing images for clients) - Designing Promotional Material (banners, icons, logos, e-mail marketing) - Following Search Engine Optimization Guidelines when creating new pages - Using Google Webmaster Tools to analyze keywords and fix any errors - Disavows - 404 Errors - Test and troubleshoot within standards to optimize the layout of materials, site performance, and compatibility with various browsers - Manage DNS, Web Hosting, SSL Certificate, Emails - Manage Shopping Carts - Manage Payment Systems (PayPal, Authorize.net) - Manage Google AdWords and Analytics - Manage Google Local, Yahoo, Bing and other Directories - Optimize WebPages - SEO Research and Analysis, Implementation and Reports - Check Website Ranking - Work closely and cohesively with clients, web developers, content writers, marketing, and other contributors to ensure project release on-time - Collect content and create Newsletter - Responsible for meeting set goals and deadlines as determined by management SEO TOOL: --------------- - Knowledge of using SearchAtlas is plus.

opportunity

React Native Developer for Premium Platform (5+ yrs)

A. Project Overview We are looking for a Senior React Native Developer with 5+ years of experience to support the development of a premium invite-only networking and event intelligence platform. This platform is designed for investors, founders, institutional members, and high-net-worth individuals, combining: 1. Intelligent networking 2. AI-powered matchmaking 3. Event lifecycle management 4. Concierge workflows 5. Secure member-only access This is an MVP-focused project with long-term scalability in mind. B. Required Experience The applicants must have: 1. 5+ years of development experience. 2. Strong hands-on expertise in React Native (Expo). 3. Experience building production-grade mobile applications. 4. Strong API integration experience. 5. Experience with authentication, notifications, and real-time features. 6. Good understanding of scalable application architecture. C. Required Skillset 1. Applicants should have strong hands-on experience with: React Native (Expo) React.js / Next.js TypeScript Node.js / Express.js Supabase & PostgreSQL REST API integration Authentication, RBAC & RLS Tailwind CSS Real time systems & push notifications OpenAI API integrations Git / GitHub Vercel deployment workflows Mobile app deployment (iOS & Android) Scalable full-stack architecture 2. Additional Requirements: 5+ years of professional development experience. Strong React Native expertise. Experience building production-grade applications. Good communication and problem-solving skills. D. Scope of Work 1. Web Application: Member dashboard Event listings & lifecycle workflows Concierge/admin panel Member directory Authentication & onboarding 2. Mobile Application React Native (Expo)-based iOS & Android app Secure onboarding and authentication Member profile flows Event participation experience Push notifications Matchmaking & networking interactions Real time updates and notifications 3. Backend & API Integration Supabase integration PostgreSQL database Authentication & RBAC Row-Level Security (RLS) Real time synchronization API integrations 4. Additional Responsibilities Performance optimisation App Store / Play Store deployment support Collaboration with internal UI/UX and QA team Code quality and scalable architecture implementation E. Important Notes 1. This is a premium-quality platform with strong focus on performance, scalability, security, and polished user experience. 2. UI/UX design and QA/testing support may be partially handled by our internal team. 3. Long-term collaboration opportunity available after MVP delivery. To Apply please share: 1. Relevant React Native projects 2. Portfolio / GitHub / live apps 3. Years of React Native experience 4. Availability NOTE: Only experienced freelancers (5+ Years) with strong React Native expertise should apply.