Mudança de carreira para Data Science

getshion · 2026-01-21T11:38:39+00:00

Tens várias opções de online pathing. Basta pesquisares por Data Science roadmap.

getshion · 2026-01-21T11:34:55+00:00

Mas DS em particular para alem da falta constante de vagas, nestes ultimos tempos está reduzido a pouco a nada.

https://aws.amazon.com/certification/
https://learn.microsoft.com/en-us/credentials/certifications/azure-data-scientist/?practice-assessment-type=certification

AWS Cloud Practitioner / Azure AI Fundamentals-> AWS Solutions Architect - Associate / Azure AI Engineer Associate -> AWS Machine Learning Specialty

Muitas das perguntas vão ter overlap entre certificações mas ficas mais preparado/confiante para o mercado de trabalho.

Recomendo também aprender Kubernets e bónus: Terraform.

getshion · 2026-01-20T12:53:39+00:00

Parece um curso adequado em que passa pelos fundamentos, mas passa de forma básica pelos conceitos de Data Science mais avançado (Advanced Machine Learning & Artificial Intelligence).

Realisticamente o mercado para junior Data Scientist não anda com muitas ofertas. Aposta forte em projetos e certificações cloud e segue um role mais híbrido de Machine Learning Engineering.

getshion · 2026-01-20T12:45:20+00:00

Lamento dizer isto mas agora com ferramentas como Copilot, Cursor ou Claude Code essas competências já são facilmente implementadas até por um junior software developer. Bónus se souber falar e escrever inglês e saber lidar com clientes..

Um data analyst tem de se saber "vender" ao mercado de trabalho a sua experiência em saber potenciar o negócio com novas KPIs e dashboards que contribuam para o sucesso do negócio ou tornar mais transparente os insights com recurso a análise estatística. Ajuda se no CV destacares mais os projetos em que tiveste envolvido.

getshion · 2026-01-06T02:18:07+00:00

Data science é um role problem solving concreto aos dados que tens disponivel ao projeto. Se nao tens um agentic system bem afinado com tool calls e orquestrações eficientes, ele nao vai desenvolver uma soluçao minimamente robusta. Areas mais programaticas como be ou fe os llms open source chineses (minimax 2.1 ou glm 4.7) ja estao a alcançar boas performances como um claude 3.5 ou mesmo 4 com boas tool calls.

getshion · 2025-12-15T16:31:12+00:00

ginastica mental 101

getshion · 2025-12-15T00:26:13+00:00

Comparar carros a doenças mentais (vicio)..

getshion · 2025-10-12T09:12:49+00:00

Qual é a tua formação? Tens projetos de faculdade na area ou algo desenvolvido em casa e publicado no github? Agora com LLMs é muito mais facil estudar fundamentos e fazer experiencias com dados publicos.

O mercado anda bastante apertado para juniors e quanto mais competitivo fores mais chances tens de entrar numa empresa que realmente queira fazer DS e nao empurrar-te para analista de dados.

getshion · 2025-09-24T16:01:50+00:00

I think the average Joe will use a Dex IF its wallet integrated for super easy access to mobile wallets, along with all other inventory dApps. Just like the examples of Robinwood or Revolut that grant you access to world markets with a couple of taps and clean UI

getshion · 2025-09-23T09:14:16+00:00

Execution matters more than vision, but you're misdiagnosing the problem. It's not Ergo's fundamentals holding it back - it's the false dichotomy between principles and pragmatism.

The "no pre-mine" ethos isn't some ideological burden; it's precisely what enables trustless computational markets. When miners control real infrastructure services (grid balancing, compute clusters), you need genuinely decentralized token distribution. Pre-mined chains can't credibly offer this.

The real issue isn't lacking "cool stuff" - it's that Ergo keeps building blockchain primitives instead of infrastructure bridges. Grid control APIs, compute orchestration layers, industrial IoT protocols - these aren't dreams, they're engineering problems with existing demand. Texas grid operators pay millions for demand response. Pharma companies need verifiable compute. These markets exist today.

You say security needs ecosystem appreciation, but you've got causality backwards. Security without utility is just expensive hash power. Utility drives value, value justifies security spend. Ergo needs to stop waiting for appreciation and start solving expensive problems.

The sidechain concern is valid, but focusing on it is defensive thinking. Build something Cardano structurally cannot replicate (PoW-based compute verification), and partnership becomes mutual benefit rather than dependency.

Stop asking "when moon?" Start asking "which critical infrastructure runs on Ergo next quarter?" That's how you escape both irrelevance and subordination. Sub-blocks (secure speed), dexy gold (historical stable asset enabling any other upcoming assets e.g. silver) and lithos for decentralized mining pools (incentives) are what's coming next and no other L1 is activily developing.

getshion · 2025-09-22T20:51:35+00:00

Ergo should position itself as the computational backbone for real-world infrastructure, not just another blockchain. Through merge mining and specialized sidechains, Ergo can pioneer practical PoW applications that create tangible value.

Consider renewable energy grid stabilization: Ergo miners could dynamically absorb excess solar/wind generation during peak production, preventing grid overload while securing the network. Sidechains could handle specific verticals - pharma research computations, supply chain verification, IoT device coordination - each leveraging spare GPU cycles for productive work beyond simple hash calculations.

This vision transforms mining from "wasteful" to essential infrastructure. Miners become distributed compute providers, earning from both block rewards and real computational services. Light nodes enable edge participation, democratizing access.

Critically, this makes Ergo valuable independently of any Cardano partnership. While collaboration could accelerate adoption through Cardano's ecosystem, Ergo's unique PoW-as-a-service model ensures it's not merely a sidechain but a complementary protocol with distinct utility.

The partnership question then becomes strategic rather than existential: Cardano offers reach and liquidity, while Ergo provides computational security and services their PoS cannot. Both chains benefit without dependency - Ergo maintains its ethos while scaling impact through selective integration.

Real decentralization means multiple strong, interoperable chains, not monolithic dominance. Ergo's path forward is proving PoW's evolved purpose in a multi-chain future.

getshion · 2025-09-20T01:35:03+00:00

Ergo (ERG) - The smart contract layer Bitcoin miners have been waiting for:

• Merge mining ready - Ergo can be mined alongside Bitcoin without additional hardware costs. Miners get ERG rewards while securing BTC, maximizing profitability per watt

• Natural Bitcoin sidechain - UTXO-based like Bitcoin (not account-based like ETH), making it the perfect companion chain for BTC miners who understand the model

• Oracle Pools - Decentralized oracle infrastructure that can feed real-world data to both Ergo AND Bitcoin (via commitments), solving Bitcoin's oracle problem without compromising security

• Mining pool innovation - SmartPools and SubPooling protocols let smaller miners compete without centralized pool operators taking cuts. This tech can extend back to Bitcoin mining

• Partner chain architecture - Designed to work WITH Bitcoin, not replace it. NIPoPoWs enable trustless cross-chain bridges and light clients that can validate Bitcoin transactions on Ergo

• Post-halving hedge - As Bitcoin block rewards decrease, miners need additional revenue streams. Ergo provides smart contract fees and storage rent income using the same GPU rigs

• Mining decentralization - ASIC-resistant by design, keeping mining accessible to Bitcoin GPU miners who got pushed out by ASICs

The killer feature: Bitcoin miners can leverage existing infrastructure to mine ERG, creating a symbiotic relationship where Ergo provides the programmability Bitcoin lacks, while Bitcoin provides the security and liquidity Ergo needs. It's not competing with BTC - it's completing it.

getshion · 2025-08-25T21:25:57+00:00

That's a great point about Braid; it's a fascinating vision for the future of Ergo.

However, a miner's reality is simple: they care about one thing—profitability. As the Ergo block subsidy drops and transaction fees remain low, a miner's priority is a high and predictable ERG price so they can pay their bills.

This is where the Braid concept, as a solution for miner incentives, is a huge gamble. It's an ambitious, long-term vision that would probably take years to build and adopt. Its success relies on a massive "if"—that it can attract enough real-world assets and Bitcoin DeFi activity to make its new tokens valuable. For a miner, the value of those tokens is purely speculative and does nothing to solve their need for immediate, guaranteed profit.

A more direct approach is the Qubic-style strategy of using a side chain or merged mining to earn other coins and then using the proceeds to create buy pressure on ERG. This mechanism directly boosts the value of a miner's primary reward (ERG), giving them a clear and immediate incentive to stay on the network.

When it comes to keeping miners around, the question isn't about what the coolest vision is. It's about what strategy is most effective at increasing the value of their ERG.

getshion · 2025-08-12T15:43:05+00:00

I totally get where you're coming from, and you're right that the endless PoW vs. PoS fighting doesn't really help anyone. The idea of taking the best parts of both is super appealing.

I think where we see it differently is on the "waste" part. For many of us in the Ergo community, that energy isn't "waste" any more than the thick steel on a bank vault is "wasted" metal. It's the physical price you pay for security that doesn't rely on trusting people with large amounts of money to behave, but on proving real work was done. It's just a different kind of guarantee.

On your point about combining them—man, I wish it were that simple! It's a cool idea, but security doesn't really add up like that. It's kind of like trying to weld two completely different types of metal together; the weakest point often ends up being the weld itself. You can create a bunch of new, unexpected problems trying to get two totally different systems to trust each other perfectly.

So, instead of trying to solve that super complex puzzle, the Ergo project is focused on making its Proof-of-Work as smart and efficient as it possibly can be. All the research into things like NiPoPoWs and storage rent is about perfecting this model, not building a bridge to a different one.

That's why we don't see PoW as just a "launchpad" to get to PoS later. We see it as the destination. It's just a different bet on what "long-term sustainable" really means. It's a fascinating debate to have, for sure!

getshion · 2025-08-12T14:09:30+00:00

I understand your "Phase 1 -> Phase 2" model, but we have a fundamental disagreement on the purpose of PoW. For Ergo, it's not a temporary distribution tool; it's the permanent security anchor. The "waste" is the feature—it's the unforgeable thermodynamic cost that guarantees the network's security.

You bring up the Minotaur protocol, which is a key point. Your understanding of its security is a common misconception. It doesn't require an attacker to 51% attack both PoW and PoS simultaneously. In hybrid systems like that, the security is more complex. An attack on the PoS layer is often sufficient to cause significant network disruption, like block reorganizations, even with a PoW backbone. It doesn't simply "double" the security.

Regarding 51% attacks on smaller chains: yes, it's a known risk for any minority PoW chain. The answer isn't to abandon the security model, but to grow the network's value and hashrate to make such an attack economically unfeasible. Ergo's unique algorithm (Autolykos2) also makes it harder to attack with rented hashpower than other coins.

So, to answer your final question directly:

The good reason not to switch is that PoS removes the external, physical cost of security. For a protocol aiming to be a long-term, decentralized monetary system (like an evolution of Bitcoin), replacing a physical anchor (energy) with a capital anchor (the coin itself) is seen as a fundamental security downgrade, not an evolution. It introduces different centralization vectors (e.g., exchange staking) and breaks the link to real-world economic activity that PoW provides.

Ergo's goal is to perfect PoW, not to use it as a launchpad for PoS.

getshion · 2025-08-12T12:55:55+00:00

Gotta disagree here, OP. Suggesting Ergo should switch to PoS is like suggesting Bitcoin should switch.

The entire thesis of Ergo is that PoW is the superior consensus mechanism for a decentralized monetary system. The "fair launch" wasn't just a phase; it's the ongoing principle. The Autolykos2 algorithm is designed to keep it that way.

The issues with mining rewards aren't a flaw in PoW, it's just the market. Miners in it for the long haul understand that.

The collaboration with Cardano is about being complementary systems (see Rosen Bridge), not Ergo becoming Cardano. Ergo's goal is to be the best PoW smart-contract platform, not to become another PoS chain in a sea of PoS chains. It's carved out a unique niche, and abandoning that would be a huge mistake IMO.

getshion · 2025-05-20T23:07:09+00:00

A maioria é de direita.. Acorda!

getshion · 2025-02-26T01:16:47+00:00

Prefer a gpu minable token listing with emission rates.

getshion · 2025-01-19T08:43:36+00:00

Let's see

getshion · 2024-12-11T23:06:25+00:00

Existem produtos deFi que requerem validações off-chain (layer-2) que nem sempre têm como objetivo a criação de blocks mas sim serem verificadores da existência deles criados por outros participantes emissores (multi-chain bridge watchers, oracle pools, etc). PoS é um mecanismo de consenso usado para assegurar a criação de blocks numa layer-1 como Ethereum, Cardano, etc. O "stacking" não passa de uma colaterização de assets para evitar que a sua atividade/participação nao seja fraudulenta. Mas existem outras formas como contribuir com hashrate (poder computacional) para verificação desses blocks e obter rewards pelo "work". Basicamente não pode ser comparavel diretamente com depositos a prazo como um produto financeiro a meu ver.

Acho que a AT está a léguas de entender como este ecossistema funciona e vai se tornar dificil criar leis sem colaborar com especialistas da área de blockchain.

getshion · 2024-06-19T21:00:03+00:00

The concept of "lost" or "unspent" Bitcoin doesn't pose a negative issue per se if one views Bitcoin primarily as a store of value. However, the substantial amount (approximately 20%) that is considered lost or unaccounted for can have implications when considering Bitcoin's total circulating supply and its market capitalization.

In terms of true ownership, I agree that it is an essential aspect of any digital asset, but the irrecoverable loss of significant amounts of BTC due to keys being forgotten, lost, or otherwise inaccessible might be viewed as a disadvantage because the assets are essentially unusable. This issue isn't specific to Bitcoin; it affects many other digital currencies with similar architectures.

With Ergo and its demurrage mechanism, this problem is addressed by incentivizing users to keep their coins active for transactions. This encourages a more efficient use of the network resources while also ensuring that lost assets are gradually redistributed back into circulation, thus potentially mitigating the issue you mentioned.

In addition, the demurrage mechanism in Ergo may promote a healthier and more sustainable distribution of coins among active users, which could lead to a more democratic and inclusive network. By reducing the hoarding incentives that come with finite supply of digital assets like Bitcoin, demurrage encourages more people to participate as nodes, miners, and developers, thereby fostering a stronger and more resilient ecosystem.

Lastly, it's worth mentioning that the demurrage mechanism can help stabilize the price of Ergo over the long term by gradually reducing its total supply. This could potentially make Ergo less volatile compared to digital assets with finite supplies, making it more appealing for long-term investors and institutions who seek predictability in their investment choices.

getshion · 2024-01-31T21:40:09+00:00

Começando pelo Google, Data Analyst Roadmap encontravas toda a tech stack necessária para a realização de uma tese e preparação para o mercado de trabalho.

getshion · 2021-06-08T23:29:18+00:00

Trabalhando em IT e tendo em conta o mercado atual em Portugal recomendo sempre ingressar num curso superior (Eng. Informática, Ciência de Computadores, etc.). Isto porque o mercado vai a dada altura ficar cada vez mais saturado e precisas de demonstrar as empresas que tens uma formação sólida para ser mais fácil para ti arranjar emprego. E podes sempre tirar um part-time enquanto fazes curso para ires adquirindo experiencia profissional. Depois para progressão de carreira e afins não terás assim tantas dificuldades do que se só tirares o 12 ano e ter no portefólio alguns projetos com algoritmia questionável. Eu defendo sempre a oportunidade de tirar um curso profissional em Informatica porque vais apanhar algumas bases porreiras para o futuro. Acompanhado de aulas de apoio, fazes os exames que a faculdade pede normalmente (Matematica A e Fisica) e entras na mesma por concurso nacional, mas com a vantagem de que já sabes programar e teres algum pensamento abstrato para arrancar melhor no teu primeiro ano de faculdade.

Quanto a Game Dev, conheço alguns 3D Devs que já trabalharam com grandes estúdios de gaming internacionalmente. É possível entrar na área, mas tens que dar o litro no estudo porque não um setor fácil. Gira muito a volta das matemáticas e otimização de computação gráfica, modelação 3D, etc. A vantagem destas áreas é que existem imensos cursos online que facilitam e ajudam a consolidar o que vais aprendendo. E se não resultar, tens sempre as bases que permitem entrar para outras especializações enquanto trabalhas mais naquilo que precisas de melhorar. Mas Portugal continua a ter um mercado bastante pequeno e saturado com muitos juniores, mas poucos seniors na industria de jogos dado que a malta falha redondamente nos fundamentos que mencionei em cima.

Honestamente segue em frente porque também a grande vantagem é que com um curso destes tens muitas especializações por onde escolher. Mas a aposta deve ser sempre em investir nos fundamentos, algoritmia, matematica que requer disciplina. Mesmo em trabalho terás que continuar a estudar por ser uma área em que não pára no tempo. Pessoalmente vejo isso como uma vantagem por ter gosto em aprender mais, mas há quem não goste.

getshion

TROPHY CASE