Hire the Best C++ Programmers & Developers
in Portugal

I’m a full-fledged game developer and game designer, handling every part of a game’s pipeline: from first idea to final build. I handle code, game design, systems, and art, shaping them so everything feels intentional, smooth, and connected. I write gameplay code, build systems, tune mechanics, and make the creative calls that keep a game feeling alive and cohesive. I’ve shipped games and I know what it takes to turn ideas into playable polished experiences that players will enjoy and come back to. I live in Unity and Unreal working with C#, C++, Blueprints, and handle gameplay systems, combat, AI, physics, animation, UI, multiplayer and networking. I’ve shipped games for PC, console, and mobile. As a game designer, I'm involved in game mechanics, progression, combat balance, pacing, controls, game design document creation, onboarding and retention. Game design isn't just a title, it's my day-to-day. I also get hands-on with art and presentation: UI, HUD, menus, lighting, scene setup, 2D/3D asset creation and integration. I make sure design, code, and visuals runs smooth and coherent. So, what are we waiting for? Let’s make a game people won't stop talking about! 🚀

I’m a Unity developer working with C#, mainly focused on gameplay systems like abilities, progression, UI, and core game logic. I’ve built features from scratch and also worked inside existing projects, so I’m comfortable both creating systems and improving what’s already there. I’ve worked on multiplayer and system-heavy features, and I care a lot about making things feel smooth, responsive, and easy to iterate on. I also use tools like ChatGPT and Claude to speed up development when it makes sense, while keeping everything clean and properly structured. If you need help building or refining gameplay systems, feel free to reach out.

I code and help translate business needs into technical solutions. With over 15 years of experience, I’ve helped multiple startups solve complex technical challenges. Whether you need someone who can quickly integrate with your team or take ownership as a solo developer, I adapt fast. Here’s what I can help you with: - Integrating APIs into applications - Scraping and structuring data - Extending APIs - Customising Shopify / WooCommerce (custom code, beyond off-the-shelf plugins) - Collaborating with startups as a full-stack developer to create or extend your digital products.

I'm a Geospatial Engineer with 10+ years of experience in web development and spatial technologies, working both in full-time positions and as a freelancer. I specialize in frontend development, particularly for mapping and location-based applications, but I'm also highly capable of handling backend development and non-geospatial projects. I have worked with renowned companies such as Esri and Dotgis—at Dotgis, I co-led frontend development for several key projects, shaping both their current and upcoming solutions. As a freelancer, I have had several clients over the years. Also, I have done other jobs outside of the upwork platform, so not all of them are in my upwork portfolio. Currently, I work with GeoInsight, but I'm open to new opportunities and collaborations. Core Expertise Frontend Development: Expert in JavaScript and React.js, with deep experience building responsive, performant, and interactive web mapping applications. I'm also fully capable of developing non-mapping web apps using vanilla JS and modern frameworks like Next.js. Backend Development: Proficient in building RESTful APIs using Node.js and Rust, with a strong understanding of backend architecture, performance, and deployment. Geospatial Technologies: Strong background in GIS software (ArcGIS, QGIS), remote sensing, spatial databases (PostgreSQL/PostGIS), and various mapping libraries (Mapbox, Leaflet, OpenLayers, Deck.gl, ArcGIS JS API, Google Maps API). I have excellent skills in processing and analyzing location-based and satellite data.. Technologies & Tools Languages: JavaScript, HTML/CSS, SQL, Rust, Python Databases: PostgreSQL/PostGIS, Duck.db Frameworks & Libraries: React.js, Next.js, Mapbox GL, Deck.gl, Leaflet, OpenLayers, ArcGIS API for JavaScript, Google Maps API Tools & Platforms: Docker, Git, Webpack, Node.js, REST APIs, unit/integration testing, git, CI/CD deployment Why Work With Me I'm a versatile developer with a solid blend of geospatial knowledge and modern web development expertise. I'm highly motivated, work well under pressure, and am committed to delivering high-quality, scalable, and efficient solutions. Whether you're building a custom mapping tool, a data visualization platform, or a full-stack web app, I bring both technical depth and domain insight to the table. If you're looking for someone who understands both code and location data, I bring the best of both worlds: full-stack web development + deep geospatial expertise. Let’s work together to bring your project to life!

I am a Game Programmer with over a year of professional studio experience and a successfully published title on Google Play. I specialize in building clean, scalable systems in Unity (C#) and developing platform-specific prototypes. How I can help your project: Core Gameplay Systems: - Architecture and implementation of mechanics, UI, and game logic using C#. Platform Integration: - Experience with specialized frameworks like HighRise (Lua) and mobile deployment. Multiplayer & Web: - Integration of networking via Mirror or database systems using SQL and PHP. Prototyping: - Rapid development of game concepts in Unity, Phaser, or Unreal Engine (Blueprints). I have a "ship-it" mindset, having managed the full development lifecycle of my own solo project, BrainStorm!. I am comfortable working within multidisciplinary teams or taking full autonomy over a technical task. If you're interested, please check my portfolio with some of my projects.

I design and build production-grade AI systems, SaaS platforms, and fintech applications - from architecture to live deployment. Startups, enterprises, and public-sector organizations bring me in when a product requires strong technical decisions, not just execution. I lead from architecture: most engagements start with a design phase that defines system, scope, and roadmap, then convert into fixed milestones so delivery stays structured and budget predictable. Rate $100-140/hr depending on complexity. 25-30 hrs/week, parallel-projects model. Not a fit for quick fixes or one-off tasks. What I specialise in: AI/LLM systems - RAG pipelines, multi-tenant AI assistants, multi-modal generative platforms, Claude/OpenAI integrations, agent orchestration, eval pipelines. SaaS platforms - multi-tenant architecture, subscription billing, RBAC, admin backends, scalable API design across web and mobile. Fintech/compliance - payment integrations, ACH, Stripe Connect, GDPR-compliant data, audit logging. Govtech/regulated - transparency platforms, donor-funded compliance, pseudonymisable schemas, multi-language tools. Blockchain/Web3 - Solana smart contracts, DeFi, SPL tokens, wallet integrations. Selected projects (live demos and portfolio links available in the Portfolio section below): Minerva (active production) - multi-tenant AI assistant platform architected end to end. Organizations upload document libraries and deploy embeddable AI chatbots from their own knowledge base. NestJS, Next.js, Azure OpenAI, Cognitive Search hybrid retrieval (BM25 + dense vector + semantic), Entra ID + RBAC + MFA, Key Vault, App Insights audit logging, full tenant isolation, golden-query eval harness in CI. Diginak.ai (active production) - logistics document-processing automation, lead architect. State-machine workflow engine processes PDF/CSV/Excel with Claude API + tool use, retry/idempotency, structured outputs (Zod), confidence-scored auto-routing to human review, observability per step. ~78% production accuracy. NestJS, PostgreSQL, Docker. Walletta AI cashier PoC (demo) - voice agent with Claude + GPT-4o orchestration, structured tool calls + confidence-scored routing, persistent WebSocket, retry-with-circuit-breaker. LiveKit, Deepgram, ElevenLabs, NestJS. Sub-500ms perceived latency. acti.vet (active production) - multi-tenant VetSaaS, three surfaces (admin/clinic/customer), PostgreSQL RLS tenant isolation, PWA. Next.js, NestJS, Supabase. PulseYourBiz (active production) - all-in-one SaaS for service providers: bookings, payments, invoicing, CRM, analytics. Five-app Turborepo monorepo, React Native mobile, Stripe Connect payouts, idempotent webhooks, audit log, multi-tenant via Docker + GitHub Actions. ProveYourImpact (production) - multi-tenant governance/compliance platform for donor-funded projects in PALOP countries. 20 API modules, 9-role RBAC, configurable workflow engine, audit log, EU/UNDP/World Bank report generators across four languages. NestJS, Next.js, PostgreSQL + RLS, Redis, MinIO. ExtendYourClinic (production) - offline-first clinical decision support SaaS for health workers in underserved regions. React Native tablet for patient triage + AI-assisted assessments, offline + cloud sync. NestJS, PostgreSQL, Stripe, on-device LLM. Full GDPR compliance. ForroAI (Apple App Store + Google Play, beta post-April 2026) - React Native production app for Cape Verdean and Sao Tome cultural language preservation. Shipped to both stores. Damen Capital Portal (concluded May 2026, lifetime $89K+) - private lender loan servicing with full ACH integration: tokenization, NACHA R01-R85, idempotent webhooks (HMAC + unique constraint), append-only audit log, OAuth 2.0 + RBAC, scheduled cron reconciliation. NestJS + Fastify, Supabase. Deepshi AI (production) - generative AI platform combining conversational AI, image, video, music generation with social community. Multi-model chat, AI characters, subscription monetization via Stripe and crypto. Next.js, TypeScript, Vercel. SwapForge (production) - no-code Solana token launch platform. SPL token factory, liquidity management, swaps via Jupiter aggregator. Tech stack: Backend: Node.js, NestJS, FastAPI, Python, REST, GraphQL. Frontend: React, Next.js, React Native, Expo, TypeScript, Tailwind. AI: Claude, OpenAI, RAG, pgvector, Azure Cognitive Search, structured outputs (Zod/Pydantic), prompt caching, tool use, eval harnesses in CI. Cloud: AWS, GCP, Azure (Functions, OpenAI, Entra ID, Key Vault, App Insights, Bicep IaC), Docker, GitHub Actions. Databases: PostgreSQL, MongoDB, Redis, Supabase, RLS tenant isolation. Blockchain: Solana, Anchor, SPL, Jupiter, Solidity, Ethereum, EVM.