AI Engineer Jobs in Portugal

974 jobs found

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Mindrift logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Join the innovative team at Mindrift as an AI Workflow Engineer for the Tendem project (https://tendem.ai/). In this dynamic freelance role, you will develop cutting-edge automation systems utilizing Large Language Models (LLMs) within our unique AI + human collaborative environment.As an AI Pilot, you'll work alongside Tendem Agents to streamline repetitive…

May 2, 2026
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toloka-ai logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

toloka-ai seeks Freelance AI Workflow Engineers to help advance the Tendem project. This part-time, remote role focuses on building automation systems that blend large language models (LLMs) with human input. Work supports the development of intelligent workflows for content generation, communication, and process automation. Key responsibilities Design and improve workflows that use LLM APIs for generating content, automating tasks, and facilitating communication Collaborate with Tendem Agents who manage repetitive tasks, ensuring effective cooperation between AI systems and human contributors Apply structured thinking, prompt engineering, and quality assurance to deliver scalable, reliable AI-powered solutions Requirements Hands-on experience integrating LLMs and designing prompts Background in developing or refining AI-driven automation systems Ability to work independently as a remote freelancer Project context The Mindrift platform connects subject matter experts with AI projects from leading technology companies. Tendem aims to unlock Generative AI’s potential by combining global expertise with advanced tools. Location Remote , Porto, Porto District, Portugal

Apr 24, 2026
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Mindrift logo
Part-time|$29/hr - $29/hr|Remote|Remote — Porto, Porto District, Portugal

Please submit your CV in English and specify your English proficiency level.Mindrift connects talented professionals with project-based AI opportunities for leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. This is a project-based opportunity, not permanent employment.Opportunity OverviewEach project presents distinct tasks, and contributors may be involved in:Designing original computational physics problems that mimic real-world physics research workflows;Creating challenges that require Python programming solutions (using libraries such as Numpy, SciPy, Sympy);Ensuring problems are computationally intensive, requiring considerable timeframes (days/weeks) for resolution;Developing scenarios that necessitate complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Grounding problems in actual research challenges or practical applications within physics;Verifying solutions through Python and standard physics simulation libraries;Clearly documenting problem statements and providing verified accurate answers.Candidate ProfileThis role is ideal for optical engineers with Python experience who are interested in part-time, non-permanent projects. The perfect candidate will have:A degree in Physics (Theoretical, Experimental, or Computational) or a related field;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any programming language is also acceptable;A minimum of 2 years of professional experience, whether in applied work, research, or teaching;Experience with numerical simulation techniques;The capability to design problems that reflect real-world physics research workflows;Creative problem-solving skills across various areas of physics;Acquaintance with physics modeling and approximation methods;Strong command of written English (C1+).Process OverviewApply → Pass qualifications → Join a project → Complete tasks → Receive paymentProject Time CommitmentFor this position, tasks are expected to require approximately 10–20 hours per week during active phases, depending on project needs. This is an estimate, not a guaranteed workload, applicable only while the project is active.CompensationContributors can earn up to $29 per hour, depending on their level of expertise and contribution pace. Compensation varies across different projects based on scope, complexity, and required skills. Note that other projects on the platform may offer different payment rates based on their specific requirements.

Apr 30, 2026
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Mindrift logo
Part-time|$31/hr - $31/hr|Remote|Remote — Porto, Porto District, Portugal

We invite you to submit your CV in English, clearly indicating your level of English proficiency.Mindrift is dedicated to connecting talented specialists with project-based AI roles for leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. This position is project-based and does not constitute permanent employment.Key Responsibilities:Design innovative computational engineering challenges that replicate real-world engineering workflows;Craft problems that necessitate Python programming for solving engineering calculations and simulations;Ensure that the challenges are computationally intensive, requiring numerical methods or iterative solutions;Develop tasks related to system design, optimization, and analytical processes;Base challenges on genuine research questions or practical applications from engineering practices;Validate solutions using Python with standard engineering libraries;Clearly document problem statements and provide verified correct solutions.Qualifications:This role is ideal for engineers experienced in Python and open to part-time, non-permanent projects. Candidates should possess:A degree in Mechanical Engineering or a related field;Proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other domain-specific libraries is acceptable;A minimum of 2 years of professional experience, including applied, research, or teaching experience;A strong understanding of practical engineering constraints and approximations;Excellent written English (C1+ proficiency);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are advantageous.How the Process Works:Apply → Pass qualifications → Engage in a project → Complete assigned tasks → Get compensated.Project Time Commitment:Tasks are projected to require approximately 10–20 hours per week during active phases of the project, contingent on project requirements. This is an estimate and not a guaranteed workload, applicable only during the project's active duration.Compensation:Contributors can earn up to $31 per hour, based on their experience and contribution pace. Compensation may vary across projects depending on their scope, complexity, and expertise required. Note that compensation levels may differ in other projects available on the platform.

May 1, 2026
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Mindrift logo
Part-time|$31/hr - $31/hr|Remote|Remote — Porto, Porto District, Portugal

We invite you to submit your CV in English and indicate your English proficiency level. Mindrift connects talented professionals with project-based opportunities in AI for some of the leading tech companies, emphasizing the testing, evaluation, and enhancement of AI systems. Please note that participation is on a project basis, not permanent employment.Opportunity OverviewEach project presents unique challenges, and contributors may be tasked with:Crafting original computational engineering challenges that mirror real engineering workflows;Designing problems that necessitate Python programming for engineering calculations and simulations;Ensuring that challenges are computationally intensive and require numerical methods or iterative solutions;Creating problems focused on system design, optimization, and analysis;Drawing inspiration from real-world research challenges or practical applications within the engineering field;Validating solutions using Python alongside standard engineering libraries;Clearly documenting problem statements and providing verified correct answers.Desired QualificationsThis role is ideal for engineers experienced in Python who are open to part-time, non-permanent projects. The ideal candidate will possess:A degree in Electrical Engineering or a related field;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, or any other programming language will be considered equivalent;At least 2 years of professional experience, including applied, research, or teaching roles;A solid understanding of practical engineering constraints and approximations;Exceptional written English skills (C1+);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects will be advantageous.Process OverviewApply → Successfully complete qualifications → Join a project → Complete assigned tasks → Receive payment.Project CommitmentFor this project, tasks are estimated to require approximately 10–20 hours per week during active phases, contingent on project requirements. This is an estimate and not a guaranteed workload, applicable only while the project remains active.Compensation DetailsContributors for this project can earn up to $31 per hour, depending on their expertise and contribution pace. Compensation may vary across different projects based on their scope, complexity, and needed expertise. Please note that other projects on the platform may offer different earning potentials based on their specific requirements.

Apr 30, 2026
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Indicium AI logo
AI Engineer

Indicium AI

Full-time|On-site|Lisbon

About Indicium AI Indicium AI is a premier consultancy trusted by leading global enterprises to implement AI technologies at scale. As a dedicated AI-native consultancy, we possess extensive experience across various sectors including Financial Services, Energy & Utilities, Healthcare & Life Sciences, Retail & CPG, and Manufacturing. From strategic planning to execution and business outcomes, we deliver AI solutions with unparalleled speed, clarity, and effectiveness.Our team comprises over 600 AI specialists serving more than 50 enterprise clients from five global locations. We collaborate closely with top-tier partners such as Anthropic, Databricks, AWS, OpenAI, and Microsoft to provide cutting-edge AI solutions that yield measurable results. Position Overview We are looking for a skilled AI Engineer to design, build, and deploy robust AI systems powered by large language models (LLMs). This role merges software engineering with AI application, emphasizing the development of reliable and scalable applications instead of model training or research.In this position, you will leverage advanced LLM technologies to create sophisticated AI systems that address complex real-world challenges through multi-agent orchestration, intelligent tool integration, and efficient production workflows. Your primary focus will be on developing the orchestration layer that ensures these systems are production-ready, addressing failure modes, optimizing collaboration between agents, and guaranteeing consistent, dependable outputs at scale. You will blend strong software engineering principles with a profound understanding of LLM capabilities, limitations, and best practices for constructing trustworthy non-deterministic systems.

Mar 17, 2026
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Toloka AI is looking for a freelance Civil Engineer & Python Specialist to support AI model training projects. This role is remote, with candidates expected to be based in Porto, Porto District, Portugal. Role overview This position combines civil engineering knowledge with Python programming to help improve AI systems. The work is project-based and allows for flexible, freelance engagement. Key responsibilities Offer civil engineering insights to guide AI model training Use Python to assist with AI development and related tasks Requirements Professional background in civil engineering Proficiency in Python Interest in artificial intelligence and openness to freelance work Location This is a fully remote freelance opportunity. Applicants must reside in Porto, Porto District, Portugal.

Apr 28, 2026
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Hitachi Digital Services logo
AI Engineer

Hitachi Digital Services

Full-time|On-site|Lisbon, Portugal

About Us At Hitachi Digital Services, we are a global leader in digital solutions and transformation, leveraging our extensive engineering expertise and industry insights to modernize, optimize, and manage mission-critical platforms at scale. Join Our Team Our Center for Artificial Intelligence (CAAI) serves as the engineering and architecture hub for AI at HDS. This practitioner-led center is dedicated to realizing Hitachi’s global AI ambitions through repeatable and governed delivery. Our team is responsible for developing reference architectures, reusable components, and evaluation methodologies that can be deployed across various client environments, including cloud and hybrid solutions. Your Role As an AI Engineer, you will design, build, and operate AI capabilities that can be seamlessly integrated into real-world applications. This includes workflows powered by large language models (LLMs), retrieval-augmented generation (RAG), and agent-based systems, all maintained to production standards. Key Responsibilities Develop end-to-end AI solutions, encompassing data preparation, model integration, evaluation, deployment, and operational monitoring. Translate business and delivery requirements into practical AI designs, collaborating closely with architects, platform engineers, and client stakeholders. Create reusable assets, such as reference implementations, patterns, templates, and internal libraries. Adhere to production best practices, including rigorous testing, version control, CI/CD processes, and performance optimization. Deliver high-quality AI components independently, mentor junior team members, and enhance CAAI’s reusable assets. Manage small to mid-sized AI workstreams from conception through to release and operational transition. Engineer RAG and agent-based features with comprehensive evaluation and failure mitigation strategies.

Mar 2, 2026
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Upwork Inc. logo
Lead AI Engineer

Upwork Inc.

On-site|On-site|Lisbon, Portugal

Join Upwork Inc. (Nasdaq: UPWK), a leader in connecting businesses with top-tier global talent empowered by artificial intelligence. As a Senior Lead AI Engineer, you will play a pivotal role in driving innovation and enhancing AI solutions across various work types, including freelance, fractional, and payrolled talent. Our diverse portfolio includes the Upwork Marketplace, which offers businesses immediate access to a vast pool of skilled professionals worldwide, and Lifted, our dedicated platform for enterprise organizations to efficiently source, manage, and compensate talent for all contingent work needs. From Fortune 100 companies to entrepreneurial startups, businesses depend on Upwork Inc. to discover expert talent, utilize AI-driven solutions, and transform their operations. With expertise spanning over 10,000 skills across AI & machine learning, software development, sales & marketing, customer support, finance & accounting, and beyond, we empower businesses of all sizes to scale, innovate, and adapt in the age of AI and beyond.Since our inception, we have successfully facilitated over $30 billion in transactions and services, embodying our mission to create opportunities in every era of work. Explore more about the Upwork Marketplace at Upwork.com and connect with us on LinkedIn, Facebook, Instagram, and TikTok.

Feb 9, 2026
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Anyone AI logo
Contract|Remote|Portugal

Anyone AI is seeking talented Full-Stack Developers to collaborate on an innovative project with a renowned AI laboratory. This role offers the opportunity to contribute to cutting-edge AI technology development.Qualifications:Exceptional written English communication skills3 to 7 years of experience in software engineeringProficient in Python and JavaScript/TypeScript; familiarity with Java, C#, or Go is a plusExperience in backend or full-stack development within production environmentsKnowledge of testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testingSkilled in debugging and navigating extensive, multi-file codebasesExperience with code reviews, refactoring, and production migrationsEngagement: This is a part-time, project-based expert evaluation position.Work Type: RemoteThe selected contributors will design and evaluate realistic software engineering tasks, including bug fixes, feature implementations, refactoring/migration, and test generation. Responsibilities encompass crafting complex coding scenarios and reviewing peer submissions for quality assurance.Responsibilities:Create and implement multi-file coding tasks for bug fixes, feature development, refactoring, and testingDraft clear natural-language specifications and reference implementationsDevelop and enhance unit and integration test suitesReview peer-generated tasks for accuracy, clarity, and realismIdentify edge cases, ambiguities, and potential failure modesEnsure consistency between specifications, code, and expected outputsExpected Outcomes:Deliver high-quality, production-ready software engineering tasks

May 4, 2026
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Mindrift logo
Contract|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Mindrift is seeking talented DevOps / Automation Engineers (Infrastructure & Scaling) to join our innovative Tendem project (https://tendem.ai/), focused on constructing and sustaining scalable infrastructure for automation workflows in a hybrid AI + human environment.In this engaging role, referred to as an AI Pilot at Mindrift, you will work alongside Tendem Agents who manage repetitive tasks, while you lend your infrastructure expertise, ensuring system reliability and performance optimization to maintain stable and scalable automation pipelines.This flexible part-time remote position is perfect for professionals with hands-on experience in cloud infrastructure, system deployment, and managing high-load automation environments.What We DoThe Mindrift platform connects specialists with AI projects from leading tech innovators. Our mission is to harness the potential of Generative AI by integrating real-world expertise from around the globe.About the RoleThis freelance opportunity involves designing, deploying, and maintaining the infrastructure that supports automation workflows, guaranteeing system stability, scalability, and high availability across various environments.Key ResponsibilitiesDeploy and maintain self-hosted automation environments (e.g., n8n instances or similar systems).Design and manage infrastructure to support high-volume workflows and extensive data processing.Scale automation systems to accommodate concurrent workloads and performance-intensive tasks.Establish monitoring, logging, and alerting systems to oversee workflow performance and detect failures.Implement alerts for critical events (e.g., node failures, performance drops, system instability).Ensure system uptime, reliability, and fault tolerance across automation pipelines.

May 2, 2026
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Datadog logo
Full-time|Remote|Portugal, Remote

Join our innovative Notebooks team at Datadog as a Staff AI Engineer, where your extensive AI/ML experience will play a pivotal role in shaping the future of data analysis tools. Our Notebooks empower users with a versatile platform for ad-hoc data exploration, collaborative investigations, and comprehensive technical documentation. We are dedicated to building AI-driven workflows that enable natural-language data analysis, automated graph generation, and efficient investigative processes. In this leadership role, you will focus on creating cutting-edge AI-powered features that set industry standards. We seek a product-oriented ML engineer with exceptional technical skills, strong communication abilities, and a proven track record of successfully implementing impactful projects end-to-end.At Datadog, we value our office culture which fosters relationships, collaboration, and creativity. Our hybrid workplace model allows team members to achieve a work-life balance that suits their personal needs.

Feb 23, 2026
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Mindrift logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Role overview Mindrift seeks a Freelance Low-Code Automation Engineer to support the Tendem project. This part-time, remote role focuses on building and optimizing automation using Make.com, n8n, and JavaScript. Candidates may work from Porto, Portugal or fully remote. What you will do Design and implement automation workflows with low-code tools such as Make.com and n8n Extend and customize workflows using JavaScript when needed Work alongside Tendem Agents to automate and streamline repetitive tasks Develop reliable and scalable solutions by applying structured problem-solving Maintain high standards for quality and attention to detail in all workflow executions Who thrives in this role Those with hands-on experience in low-code automation platforms Engineers skilled at designing and refining workflow automations Individuals comfortable using JavaScript for custom automation logic People who prioritize quality, reliability, and clear processes The AI Pilot specialist At Mindrift, this specialist is called an "AI Pilot." AI Pilots work closely with human agents, ensuring smooth collaboration between automated systems and manual processes within a hybrid AI and human framework.

Apr 24, 2026
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Mindrift logo
Part-time|$50/hr - $50/hr|Remote|Remote — Porto, Porto District, Portugal

Mindrift is seeking talented Low-Code Automation Engineers proficient in Make.com, n8n, and JavaScript to join our innovative Tendem project. In this dynamic role, referred to as an AI Pilot at Mindrift, you will partner with Tendem Agents to streamline repetitive tasks while applying your automation expertise, analytical approach, and quality assurance to ensure efficient and scalable workflows across diverse systems.This part-time remote position is perfect for individuals with substantial experience in low-code automation platforms, workflow design, and JavaScript customization.About MindriftAt Mindrift, we connect industry specialists with cutting-edge AI projects from leading technology firms. Our goal is to harness the power of Generative AI by leveraging real-world expertise globally.Position OverviewThis freelance role focuses on the Tendem project. As a Low-Code Automation Engineer, you will be responsible for designing, developing, and refining sophisticated automation workflows across various platforms, guaranteeing reliable performance, scalability, and effective data management within integrated systems.Primary ResponsibilitiesDesign and assess intricate automation workflows spanning multiple business tools and platforms.Create and enhance workflows utilizing low-code platforms (Make.com, n8n), APIs, webhooks, and event-driven logic.Incorporate custom JavaScript within automation solutions to manage advanced logic, data transformations, and unique scenarios.Connect and synchronize data across systems such as Airtable, Google Sheets, Notion, CRMs, and more.Ensure dependable workflow execution through appropriate error handling, logging, and fallback strategies.Diagnose and enhance automation performance, minimize failures, and increase operational efficiency.Support the automation of communication and operational processes such as messaging, outreach, and notifications.CompensationContributors on this project can earn up to $50 per hour, based on their experience and contribution speed. Compensation may vary across projects depending on their scope, complexity, and expertise required. Other projects on the platform may offer different earning potentials.

May 2, 2026
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Toloka AI logo
Contract|Remote|Remote — Porto, Porto District, Portugal

Join the Toloka AI team as a Freelance Agent Evaluation Engineer! In this pivotal role, you will contribute to the development and evaluation of AI systems, ensuring their effectiveness and reliability. Collaborate with a team of experts remotely from the beautiful Porto District of Portugal. If you're passionate about technology and eager to make a significant impact in the AI landscape, we want to hear from you!

May 1, 2026
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inetum2 logo
Full-time|On-site|Lisbon

Join inetum2 as a Generative AI Engineer, where you will play a pivotal role in developing cutting-edge AI solutions. In this dynamic position, you will collaborate with multidisciplinary teams to create innovative AI applications that enhance user experiences. If you are passionate about transforming ideas into reality through artificial intelligence, we want to hear from you!

Sep 10, 2025
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Hitachi Digital Services logo
Senior AI Engineer

Hitachi Digital Services

Full-time|On-site|Lisbon, Portugal

About Us Welcome to Hitachi Digital Services, a global leader in digital solutions and transformation. We envision a world filled with potential, driven by innovation and technology. Our mission is to empower positive change by future-proofing urban environments, conserving natural resources, and enhancing lives. Each day, we harness our extensive expertise to transition our clients from the present to a better future. At Hitachi, we value diversity and recognize that your unique life experiences, character, and passion are crucial to our collective success. Join Our Team As part of our global delivery network, Hitachi Digital Services Vietnam collaborates with teams worldwide, including in India, Portugal, and the US. Our workforce is engaged in various projects, from cloud migration to digital modernization. We pride ourselves on our operational excellence and agile delivery as we undertake significant transformation projects for our clients. Your Role In this position, you will design, develop, and manage AI capabilities that are seamlessly integrated into practical applications. This includes LLM-enabled workflows, RAG, and agent-based systems within enterprise platforms, ensuring they meet production standards.

Mar 2, 2026
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Cross Border Talents logo
AI Prompt Engineer

Cross Border Talents

Full-time|On-site|Lisbon, Lisbon, Portugal

Are you ready to shape the future of artificial intelligence?We are in search of a highly skilled and enthusiastic AI Prompt Engineer to join our innovative team. This pivotal role demands a unique combination of technical expertise, analytical prowess, and meticulous attention to detail. The Prompt Engineer will focus on optimizing AI tools, troubleshooting technical challenges, conducting in-depth data analysis, and crafting effective prompts that significantly enhance operational productivity.Key ResponsibilitiesOptimization and Equipment MaintenanceContinuously monitor and maintain AI systems to ensure peak performance.Fine-tune and adjust equipment settings for optimal functionality.Technical Problem SolvingIdentify and rectify errors to elevate overall productivity.Utilize advanced problem-solving techniques to address technical hurdles.Data AnalysisConduct comprehensive data analysis to uncover patterns, trends, and areas for improvement.Communicate findings and recommendations to management for informed decision-making.Prompt Design and DevelopmentAssess organizational needs to create and implement impactful prompts.Leverage prompts to automate repetitive tasks, enhancing operational efficiency.

Jan 30, 2024
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condukt logo
Full-time|On-site|Porto

Position OverviewJoin our dynamic team as the Chief of Engineering and AI at condukt, where you will play an instrumental role in expanding our engineering and machine learning capabilities while actively engaging in development tasks that are crucial to our success.In this leadership position, you will exemplify the right behaviors, cultivate a thriving engineering culture, build a high-achieving team, drive execution, and inspire innovation—all while developing and sustaining cutting-edge infrastructure that supports real-time business data.As the leader of a group of skilled senior engineers with extensive fintech backgrounds, many of whom have previously developed and scaled products at renowned unicorn companies, you will blend your technical expertise with people management. Your role will involve setting strategic direction, optimizing for growth, and participating directly in development when necessary.Being part of an early-stage startup, we value hands-on contributions and building from the ground up. Be prepared to engage deeply with code and systems design. Our leadership team boasts a strong history of product development, team scaling, and growth acceleration, and our ambitious engineers come from top tech companies and unicorns.We prioritize agility, embrace uncertainty, and wear multiple hats to deliver exceptional products. Our commitment to our customers is unwavering. If you are passionate about addressing complex technical challenges, expanding teams, and excelling in a fast-paced, collaborative environment, we want to hear from you!Key ResponsibilitiesShape the technical strategy and long-term architecture of our core platform in close partnership with the Founders.Drive execution with an unwavering focus on delivering customer value while optimizing for efficiency, impact, and speed.Adopt a practical approach to software development, ensuring a balance of scalability, security, maintainability, and performance across our critical systems.Continuously monitor key performance indicators to evaluate team effectiveness, product reliability, and technical outcomes.Lead, mentor, and guide a team of seasoned engineers, promoting a culture of continuous learning, improvement, and technical excellence.Build a high-performing engineering organization, recognizing and nurturing talent through exemplary feedback and hands-on leadership.Ensure the implementation of the right tools, processes, and systems for the swift diagnosis, debugging, and resolution of real-time production issues.

Nov 14, 2025
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Schröder logo
Full-time|On-site|Linda-a-Velha

Join our dynamic team at Schröder as a Principal AI Software Engineer, where your expertise will drive the development of cutting-edge artificial intelligence solutions. You will play a pivotal role in designing and implementing innovative software systems that leverage AI technologies to solve complex problems.Your responsibilities will include leading a team of engineers, collaborating with cross-functional teams, and ensuring the successful delivery of AI projects. Your work will have a significant impact on our mission to enhance technology through intelligent systems. If you are passionate about AI and want to make a difference, we want to hear from you!

Mar 13, 2026

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