Jobs Spain

Quantum is a global technology partner delivering high-end software products that address real-world problems. 

We advance emerging technologies for outside-the-box solutions. We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

Here at Quantum, we are dedicated to creating state-of-the-art solutions that effectively address the pressing issues faced by businesses and the world. To date, our team of exceptional people has already helped many organisations globally attain technological leadership.

We constantly discover new ways to solve never-ending business challenges by adopting new technologies, even when there isn't yet a best practice. If you share our passion for problem-solving and making an impact, join us and enjoy getting to know our wealth of experience!

About the position

Quantum is expanding its team in Central Europe and is looking for talented Data Science Engineers to join us. Our projects span multiple domains, including data analysis, fintech, computer vision, image processing, edge-device solutions, Large Language Models (LLMs), and classical Machine Learning applications. We build custom Data Science solutions for clients across various industries, combining strong engineering practices with a research-driven mindset.

Joining Quantum means becoming part of a team that values solid technical fundamentals, continuous learning, and practical problem-solving. You'll collaborate on impactful products, work with cutting-edge technologies, and contribute to projects that turn complex ideas into real-world solutions.

Must have skills:

• 3+ years of commercial DS/ML experience
• Solid foundation in linear algebra, statistics, and probability
• Strong Python, including NumPy, Pandas, and scikit-learn
• Hands-on experience with PyTorch (or TensorFlow)
• Deep experience in at least one of: 
  • Computer Vision (modern DL: detection, segmentation, classification - ViT, YOLO, SAM); 
  • LLMs / NLP (fine-tuning, RAG, prompt engineering, embeddings, evaluation); 
  • Classical ML at scale (tabular, time series, recommender systems)
• Working knowledge of Transformers and attention; familiarity with CNNs
• Experience deploying models to production (Docker, REST/gRPC serving, basic monitoring)
• Experience with at least one cloud platform (AWS, GCP, or Azure)
• Clean code and Git workflow
• Experience with SQL
• Upper-Intermediate English (B2+) - you'll communicate directly with clients

Nice to have skills:

• Cross-domain exposure: if your main strength is CV, some LLM exposure is a plus (and vice versa)
• Edge deployment: TensorRT, OpenVINO, ONNX, quantisation, model distillation, mobile/embedded inference
• LLM tooling: LangChain/LlamaIndex, vector databases (pgvector, Pinecone, Weaviate, Qdrant), LoRA/QLoRA fine-tuning, agentic frameworks
• MLOps & model monitoring: MLflow, DVC, Weights & Biases, CI/CD for ML
• Classical CV with OpenCV (still relevant for hybrid pipelines and edge work)
• Ability to read recent papers and implement methods in new domains
• Experience working with external clients
• Participation in Kaggle competitions

Your tasks will include:

• Own full-cycle DS projects: scoping with the client, data prep, modelling, evaluation, deployment
• Build solutions across CV, LLM/NLP, and classical ML depending on the project pipeline
• Deploy models to production - cloud, edge, or hybrid, depending on client needs
• Read recent research and adapt methods to client problems
• Communicate technical decisions and trade-offs directly to clients

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.

We are looking for an experienced .NET Engineer to join our team and work on a healthcare research portal, following best Agile practices (two-week sprints, code review, daily standups).

You'll design, build, and own backend services on a modern .NET 10 stack running in Azure, working across the full lifecycle — from architecture and design through implementation, deployment, and production support. This is a hands-on role: you'll spend most of your time writing and reviewing code, but you'll also shape technical decisions, drive best practices, mentor other engineers, and partner closely with product, architecture, and other engineering teams.

About the Project

The project we are working on is a web-based application with over 25,000 current users, developed for the entire research community to review, monitor, and manage research portfolios. The main goal of the project is to unite distributed and complex organizational processes into one application and help alleviate administrative burdens.

A key focus of this role is modernizing this complex enterprise system — updating its architecture, platform, and data foundations to make it AI-ready and enable future AI-driven capabilities.

Requirements:

• 5+ years of professional software engineering experience, with strong proficiency in C# and the .NET platform (.NET Core / .NET 5+; .NET 10 a plus).
• Deep experience building backend services with ASP.NET Core.
• Strong SQL Server skills: schema design, complex queries, and query performance tuning. Experience with Azure SQL Managed Instance is a strong plus.
• Hands-on experience deploying and operating applications on Microsoft Azure.
• Solid grasp of asynchronous programming (async/await), dependency injection, and the ASP.NET Core request pipeline.
• Experience with Entity Framework Core, including migrations and performance tuning.
• English — Upper Intermediate or above
  
   

Will be a plus:

• Frontend or full-stack experience with React (a strong plus); experience with Blazor or Angular is also welcome.
• Observability: structured logging, distributed tracing, and metrics.

Responsibilities:

• Design, architect, and implement high-performance, scalable, and secure enterprise applications using the modern .NET ecosystem (e.g., .NET 8/10, ASP.NET Core).
• Architect and optimize database schemas, write complex queries, and manage data persistence using SQL Server, alongside ORMs like Entity Framework Core
• Establish development patterns and standards that enable AI empowered development across the platform.
• Lead and participate in rigorous peer code reviews to ensure adherence to coding standards, security protocols, and best practices
• Coach, mentor, and guide junior and mid-level developers, fostering a culture of continuous learning and technical growth within the team.
• Collaborate closely with Product Owners, Business Analysts, Scrum Masters, and UI/UX designers to translate complex business requirements into clear technical specifications
• Serve as an escalation point for complex production issues; perform root-cause analysis and implement long-term stability fixes.
• Set up and monitor system health, logging, and observability metrics using tools like Application Insights, ELK stack, Datadog, or Prometheus.

About Us

CareerOS is a B2B2C career platform serving 100+ top MBA programs worldwide — including Oxford, INSEAD, London Business School, Georgetown, and Notre Dame — along with 30+ employers. We help 500K+ users land jobs they love, and we're growing with real revenue (not just runway).

We're a small, high-output team of 5 engineers based in Barcelona, scaling to 10+. We work in small squads, each owning their area of the product end-to-end. We ship fast, own our decisions, and push each other to do great work.
 

The Role

We're looking for a full-stack engineer to help build the services that power CareerOS. You're a few years into your career, you ship solid work, and you're ready to level up fast — this is a role you grow into.

You'll own whole features from database to API to UI, with the team backing you up. You'll work directly with the squad lead and product owner responsible for the domain - in the room when decisions get made, with real input on what we build. And because we deploy continuously, the code you merge today is live for real users today.

We're also an AI-native team, and that's central to how we work — see below.

Tech stack: Node.js (primary for new code), React/TypeScript on the frontend, some legacy Go. Infrastructure on GCP.

Typical split: backend-leaning, with real frontend work in React — it varies by project.

We Build With AI — and We Love It

We use AI coding tools every day, on real production code. It's one of the best parts of working here: you move faster, you build more, and you spend your energy on the interesting problems.

The thing that makes it work is you. The best AI output comes from engineers who direct it well, read what it produces, and catch it when it's off. You bring the judgment; the AI brings the speed. If that's already how you like to work — bonus points if you've used a structured or spec-driven workflow — you'll feel right at home.

What You'll Actually Do

• Ship full features, end-to-end — schema design, API, and the React UI on top. You own the vertical, with support when you need it.
• Work with data — write real queries, design schemas, reason about migrations.
• Build across the stack — backend-focused, but you'll ship real frontend in React/TypeScript too.
• Help move our Go services to Node — read existing Go to understand the logic, rebuild it cleanly in TypeScript with time. (You won't write new Go.)
• Build with AI tools — we use Claude Code, Cursor, and others daily. You should be comfortable, or excited, to work this way.
• Own your code in production — continuous deployment means what you merge today is live today. You debug it, monitor it, improve it.

What We're Looking For

Must-haves:

• 3+ years building production systems
• Strong TypeScript
• Solid Node.js backend experience building HTTP APIs
• Comfortable in React for real web apps
• Good SQL — you write real queries and think about schema design
• A real AI-assisted workflow — you can walk us through a feature you shipped with AI: what you delegated, and how you caught its mistakes
• Excellent communication and fluent English — we're distributed
• Eagerness to own features and grow fast

Strong signals:

• Experience with a spec-driven or structured AI workflow
• You've read Go before, or can pick it up enough to understand existing logic
• tRPC, Zod, Drizzle, or any modern ORM (concepts transfer)
• GCP, Docker, or monorepo tooling
• You've worked at an early-stage startup before (and liked it)
• You care about craft — clean code, good abstractions

What This Role is NOT

Let's be honest about fit:

• ❌ Not a backend-only seat — you'll spend real time in React.
• ❌ Not "paste into a chatbot and ship it" — AI is a power tool here, and you read and understand what you ship, whether you or the AI wrote it.
• ❌ Not a chill 9-to-5 — startup means more ownership and higher stakes. We respect personal time, but when we ship, we ship hard.

Your First 30 Days

We don't expect magic on day one. A great first month looks like:

• Week 1 — Local environment running, first small PR merged to production. Meet the team and get a feel for the codebase and how we use AI.
• Week 2 — Own a well-scoped feature end-to-end, schema to UI, with guidance and review.
• Weeks 3–4 — Take a scoped feature from idea to production with lighter support each time.

By day 30 you're shipping steadily, you know the patterns, and the team trusts you with real work.

Growth

You'll join as one of 5 engineers, growing to 10+. As we scale, there's a clear path to senior engineer and beyond for the right person. You'll help shape engineering culture and how we work with AI — not just inherit it.

What You Get

• Competitive salary + stock options possible — we'll discuss based on experience and location
• Remote-friendly — Barcelona hybrid optional, remote within CET ±2 hours
• Small team, visible impact — 500K+ users, real revenue, your work matters
• Quick decisions and fast moving — fast decisions, no layers, real influence
• AI-native team — AI-assisted development encouraged, never restricted

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. ‍Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.

❗️Please note that this role is office-based for Spain.

❗️If you need to be relocated, we take care of the process.

✅ Requirements:

✔️Strong knowledge of JavaScript and the ECMAScript 6 standards;

✔️5+ years of commercial experience with Node.js and Nest.js;

✔️5+ years of commercial experience in web development;

✔️Commercial experience of working with high-load SQL or NoSQL databases;

✔️Commercial experience of implementing the REST, GraphQL, and WebSockets;

✔️Understanding of the TDD principles and experience of writing tests;

✔️Understanding of microservice architecture principles;

✔️Experience of GIT version control system;

✔️Experience with RabbitMQ;

✔️Experience with Redis;

✔️Experience with databases MongoDB, MySQL;

✔️At least an Intermediate level of English.

✅ Will be a plus:

✔️2+ years of hands-on experience developing over CI/CD/Micro Services architecture/Containers;

✔️Experience with Kubernetes;

✔️Experience with Nats;

✔️Experience with TypeScript.

✅ Duties and opportunities:

✔️In-house platform development;

✔️3rd party API integrations;

✔️Actively participate in developing new features from scratch.

✅ We offer excellent benefits, including but not limited to:

🧑🏻‍💻 Learning and development opportunities and interesting, challenging tasks;
📝 Official employment following Spain/EU laws, including registration of family members;
✈️ Relocation package (flight tickets + 2-week hotel stay);
📚 Language development support and partial compensation for classes;
🎁 Birthday celebration gift;
🏝 23 working days of Annual Vacation for proper rest;

🏋️‍♂️Social Club and more than 50 events per year - coming soon;

⚖️ Competitive remuneration level with annual review;

🏄🏻‍♂️ Teambuilding activities.

Bold moves start here. Make yours. Apply today! 

❗️Please note that this role is office-based for Spain.

❗️If you need to be relocated, we take care of the process.

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. ‍Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.
 

❗️ Important: This is an On-Site Position in Spain❗️

This is an on-site position based at our office in Spain, Valencia. Remote or hybrid arrangements are not available once you join the team.

Are you ready for an international move? We are looking for candidates who are either already based in Lisbon or are eager to relocate to Portugal.
To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates ❗️

⚡ We are looking for an experienced Senior Backend Developer (Node.js) to join our development teams in Valencia and lead the backend technologies of our systems. This is a highly hands-on role: you will be actively writing and reviewing code, shaping architecture, and driving technical excellence while mentoring your team.

✅ Requirements:

✔️Strong knowledge of JavaScript and the ECMAScript 6 standards;

✔️5+ years of commercial experience with Node.js and Nest.js;

✔️5+ years of commercial experience in web development;

✔️Commercial experience of working with high-load SQL or NoSQL databases;

✔️Commercial experience of implementing the REST, GraphQL, and WebSockets;

✔️Understanding of the TDD principles and experience of writing tests;

✔️Understanding of microservice architecture principles;

✔️Experience of GIT version control system;

✔️Experience with RabbitMQ;

✔️Experience with Redis;

✔️Experience with databases MongoDB, MySQL;

✔️At least an Intermediate level of English.
 

✅ Will be a plus:

✔️2+ years of hands-on experience developing over CI/CD/Micro Services architecture/Containers;

✔️Experience with Kubernetes;

✔️Experience with Nats;

✔️Experience with TypeScript.
 

✅ Duties and opportunities:

✔️In-house platform development;

✔️3rd party API integrations;

✔️Actively participate in developing new features from scratch.
 

✅ We offer excellent benefits, including but not limited to:

🧑🏻‍💻 Learning and development opportunities and interesting, challenging tasks;
📝 Official employment following Spain/EU laws, including registration of family members;
✈️ Relocation package (flight tickets + 2-week hotel stay);
📚 Language development support and partial compensation for classes;
🎁 Birthday celebration gift;
🏝 23 working days of Annual Vacation for proper rest;

🏋️‍♂️Social Club and more than 50 events per year - coming soon;

⚖️ Competitive remuneration level with annual review;

🏄🏻‍♂️ Teambuilding activities.
 

Bold moves start here. Make yours. Apply today! 

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. ‍Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.
 

❗️ Important: This is an On-Site Position in Spain❗️

This is an on-site position based at our office in Spain, Valencia. Remote or hybrid arrangements are not available once you join the team.

Are you ready for an international move? We are looking for candidates who are either already based in Lisbon or are eager to relocate to Portugal.
To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates ❗️

⚡ We are looking for an experienced Team Lead Backend Developer (Node.js) to join our development teams in Valencia and lead the backend technologies of our systems. This is a highly hands-on role: you will be actively writing and reviewing code, shaping architecture, and driving technical excellence while mentoring your team.

✅ Responsibilities:

• Lead, mentor, and manage backend engineers through regular one-to-one sessions, feedback, performance evaluations, and individual development plans.
• Actively write, review, and refactor code and directly contribute to building and improving our systems.
• Participate in agile ceremonies (Scrum/Kanban) to ensure team alignment and adherence to agile best practices.
• Enhance system quality by resolving technical debt, optimizing architecture and flows, and performing data cleaning and restructuring.
• Design solutions and make key technical decisions for changes and enhancements.
• Assign tasks and balance workloads within the team to ensure efficient delivery.
• Collaborate with Engineering Managers to adopt the latest technologies and drive company-wide engineering initiatives.
• Document domain knowledge, improve engineering standards, and contribute to initiatives that enhance the broader engineering organization.

✅ Requirements:

• Bachelor’s, Master’s, or higher degree in Computer Engineering, Computer Science, Applied Mathematics, or a related field.
• 8+ years of professional backend development experience.
• 3+ years of experience in leadership positions.
• Strong experience with Node.js and modern web development.
• Knowledge of Kubernetes, containers, infrastructure, system design, SQL, and NoSQL databases.
• Experience with RESTful APIs, message brokers, 3rd party integrations, and secure development practices.
• Familiarity with CI/CD, microservices, cloud-based development, and test-driven development is a plus.
• Deep understanding of data structures, coding patterns, and algorithms.
• Experience with agile methodologies, ideally Scrum.
• Excellent problem-solving, diagnostic, and troubleshooting skills.
• Strong leadership, organizational, and mentoring abilities.
• Upper-intermediate or advanced English.
 

✅ We offer excellent benefits, including but not limited to:

🧑🏻‍💻 Learning and development opportunities and interesting challenging tasks;

✈️ Relocation package (tickets, staying in a hotel for 2 weeks);

🏋️‍♂️ Company fitness corner in the office for employees;

📚 Opportunity to develop language skills and partial compensation for the cost of language classes;

🎁 Birthday celebration present;

🏝 Time for proper rest and 24 working days of Annual Vacation;
 

Join BrainRocket and rock with us! 🚀

Bold moves start here. Make yours. Apply today!

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. ‍Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.

❗️ Important: This is an On-Site Position in Spain❗️

This is an on-site position based at our office in Valencia, Spain. Remote or hybrid arrangements are not available once you join the team.

Are you ready for an international move? 
To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates ❗️

⚡ We are looking for an experienced Team Lead Backend Developer (Node.js) to join our development teams in Valencia and lead the backend technologies of our systems. This is a highly hands-on role: you will be actively writing and reviewing code, shaping architecture, and driving technical excellence while mentoring your team.

✅ Responsibilities:

• Lead, mentor, and manage backend engineers through regular one-to-one sessions, feedback, performance evaluations, and individual development plans.
• Actively write, review, and refactor code and directly contribute to building and improving our systems.
• Participate in agile ceremonies (Scrum/Kanban) to ensure team alignment and adherence to agile best practices.
• Enhance system quality by resolving technical debt, optimizing architecture and flows, and performing data cleaning and restructuring.
• Design solutions and make key technical decisions for changes and enhancements.
• Assign tasks and balance workloads within the team to ensure efficient delivery.
• Collaborate with Engineering Managers to adopt the latest technologies and drive company-wide engineering initiatives.
• Document domain knowledge, improve engineering standards, and contribute to initiatives that enhance the broader engineering organization.

✅ Requirements:

• Bachelor’s, Master’s, or higher degree in Computer Engineering, Computer Science, Applied Mathematics, or a related field.
• 8+ years of professional backend development experience.
• 3+ years of experience in leadership positions.
• Strong experience with Node.js and modern web development.
• Knowledge of Kubernetes, containers, infrastructure, system design, SQL, and NoSQL databases.
• Experience with RESTful APIs, message brokers, 3rd party integrations, and secure development practices.
• Familiarity with CI/CD, microservices, cloud-based development, and test-driven development is a plus.
• Deep understanding of data structures, coding patterns, and algorithms.
• Experience with agile methodologies, ideally Scrum.
• Excellent problem-solving, diagnostic, and troubleshooting skills.
• Strong leadership, organizational, and mentoring abilities.
• Upper-intermediate or advanced English.

✅ We offer excellent benefits, including but not limited to:

🧑🏻‍💻 Learning and development opportunities and interesting challenging tasks;

✈️ Relocation package (tickets, staying in a hotel for 2 weeks);

🏋️‍♂️ Company fitness corner in the office for employees;

📚 Opportunity to develop language skills and partial compensation for the cost of language classes;

🎁 Birthday celebration present;

🏝 Time for proper rest and 23 working days of Annual Vacation;

Join BrainRocket and rock with us! 🚀

Bold moves start here. Make yours. Apply today! 

N-iX is looking for Senior Full-Stack Engineer (Spanish-speaking) to join the team

Our client is one of the world’s leading global fashion retailers operating in more than 200 markets through both e-commerce platforms and thousands of physical stores worldwide. The company manages the full fashion value chain – from design and manufacturing to distribution and retail – with a strong focus on flexibility, digital integration, and sustainability.

Technology plays a critical role across all business areas including stores, e-commerce, logistics, and supply chain. Engineering teams work in small, autonomous product teams that own the full lifecycle of the solutions they build. Engineers are encouraged to understand the broader business context, collaborate directly with stakeholders and users, and actively contribute to technical and product decisions.

Responsibilities:

• Participate actively and constantly in the design and development of APIs
• Ensure the availability and resilience of its services that help the development of the company’s business
• Ensure the quality of development and code cleanliness (Clean Code)
• Continuously perfect our style guides, design, and code patterns as well as our React component library
• Implement the scripts for the automation of the test cases
• Automatic and manual exploratory execution during the development to verify that the acceptance criteria are covered
• Maintain and evolve automated test cases with QA
• Work in close contact with the Product Owner and support in the technical definition of product backlog items
• Guarantee continuous deployment, write qualitative, maintainable code with extensive test coverage in a fast-paced professional software engineering environment
• Suggest technical and functional improvements to add value to the product

Requirements:

• 5+ years of software development experience
• 4+ years of strong Java development experience with Maven
• 2–3 years of experience with Spring framework and building Spring-based web applications
• Solid understanding of microservices architecture and RESTful APIs (OpenAPI)
• Experience with modern frontend technologies including React, Redux, Redux-Saga, TypeScript, ES6
• Experience with HTML5, CSS3/SCSS, responsive design techniques, and frontend performance optimization
• Strong knowledge of OOP, OOD, DDD, and design patterns
• Experience with relational databases and NoSQL solutions (e.g., MongoDB)
• Experience with Kafka and event-driven architectures 
• Experience working with cloud platforms such as AWS or Azure
• Experience working in Agile environments and understanding Agile development practices.
• Experience actively using AI tools in the development workflow is required.
• Spanish – Upper-Intermediate or higher (required)
• English – Upper-Intermediate or higher

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

You will become a part of Trinetix Presale Team, working together with Sales and Delivery to design compelling and technically credible solutions for our potential clients. 

As a Presale Architect / Technology Consultant you will engage with potential clients from the earliest stages to shape solution architecture, validate feasibility, and translate business challenges into robust, scalable technical proposals.   

You will take part in building AI-augmented Presale Function together with Trinetix presale and technology experts. 

Your key responsibility will be owning the technical vision of the proposed solution and ensuring it is architecturally sound, commercially competitive, and clearly communicated to both technical and business audiences. 

Requirements: 

• 8+ years of experience in the IT sector, with at least 3 years in a Software Architect or Technical Lead role 
• Strong background as a software architect or senior technical consultant with proven experience designing end-to-end enterprise-grade solutions 
• Proven consulting experience in client-facing roles; skilled at facilitating technical discovery sessions, architecture workshops, and solution design reviews with both business and engineering stakeholders 
• Deep expertise in solution architecture, system design, and architectural patterns (SOA, Microservices, event-driven, cloud-native); solid understanding of UX/UI, data, and integration concerns at an architectural level 
• Strong experience leading architecture-level conversations with engineering teams; ability to convert ambiguous business challenges into well-structured technical proposals, reference architectures, and PoC plans 
• Solid understanding of presales dynamics: ability to produce high-quality architectural output under time pressure and ambiguity, making pragmatic trade-off decisions without sacrificing credibility 
• Experience contributing to both informal discovery-driven engagements and formal RFP/RFI responses, including authoring technical sections of proposals 
• Excellent written and verbal communication skills; proven ability to explain complex technical concepts clearly to non-technical audiences and to craft compelling architecture narratives 
• Experience engaging with technical and non-technical stakeholders from the USA and/or Europe; comfortable presenting to architects, CTOs, and VP-level executives 
• Proven experience presenting architectural proposals and facilitating technical deep-dives with VP- and CxO-level client stakeholders, including handling tough architecture-related questions on the spot 
• Ability to independently produce well-structured, visually clear architecture documents, diagrams (e.g. C4, UML), and presentation decks — including when design support is not available 
• Advanced level of English or higher  

Nice-to-haves: 

• Experience with cloud platforms (Azure preferred, AWS or GCP as a plus) and cloud-native architecture patterns 
• Experience or strong interest in AI/ML solution architecture and its practical implications for enterprise systems 
• Hands-on experience using AI tools to accelerate solution design, documentation, and presales deliverables 
• Practical knowledge of DevOps, infrastructure-as-code, and CI/CD concepts at the architecture level 
• Domain expertise in Healthcare, Fintech, Logistics, or Telecom would be a strong plus 

Responsibilities: 

• Serve as the technical lead within the presale process, owning the architecture vision and acting as the primary technical point of contact for potential clients 
• Engage with potential clients early in the presale cycle to conduct technical discovery, clarify architectural requirements, evaluate constraints, and validate solution feasibility 
• Design and present high-level solution architectures, technology stack recommendations, integration approaches, and non-functional considerations (scalability, security, reliability) for proposed solutions 
• Collaborate with UX experts and delivery teams to produce architecture vision documents, reference diagrams, prototypes, and POC plans that substantiate the proposed solution  
• Lead technical estimation sessions: decompose the proposed solution into workstreams, define architectural assumptions, and ensure engineering estimates are grounded in realistic scope and risk assessment 
• Author the technical sections of presale documents (proposals, architecture decks, RFP/RFI responses, financial models) balancing depth of detail with clarity and persuasiveness 
• Participate in proposal presentation meetings as the primary technical presenter; lead architecture deep-dives and confidently handle technical questions from client engineering and leadership teams 
• Balance the needs and expectations of internal stakeholders (Sales, Delivery, Practice Leads) to ensure technically sound, commercially competitive proposals free of risky over-commitments 
• Contribute to Presale Function development: build and maintain reusable architecture assets, solution templates, technology playbooks, and estimation frameworks 
• Take ownership of key technical decisions during the presale phase and communicate associated risks and trade-offs clearly to both internal teams and clients 
• Continuously collaborate with Trinetix Solution Architecture Practice and Technology Functions contributing into the companies expertise and capabilities 

What we offer   

• Continuous learning and career growth opportunities 
• Flexible working hours 
• Inclusive and supportive culture 

We are seeking an experienced PLM Solution Architect with strong German language capabilities to lead enterprise-level Product Lifecycle Management initiatives for one of our biggest-scale customers in the automotive sector. This role requires a strategic thinker who can bridge technical architecture with business requirements while effectively communicating with German-speaking stakeholders across the organization who will have the opportunity to work on strategic PLM initiatives for a global organization being the key-decision makers. 

Do you have strong presentation and facilitation capabilities along with the ability to communicate complex technical concepts to diverse audiences and influence on them with proven stakeholder management skills across multiple organizational levels?

And all that while being experienced with mentoring technical teams and junior architects, and at the same time being able to work independently while time management is your best friend... sounds like you? Then look no further, if multitasking is not a word that scares you, should you match the following:

Key Responsibilities

Solution Architecture & Implementation

• Lead end-to-end PLM solution architecture design, development, and implementation
• Define and maintain PLM architecture standards, best practices, and technology roadmap
• Conduct solution design sessions, architecture reviews, and technical assessments
• Ensure system scalability, data governance, and regulatory compliance
• Support deployment activities, system migrations, and platform upgrades

Stakeholder Engagement

• Engage directly with German-speaking business stakeholders to gather, analyze, and refine requirements
• Facilitate workshops and design sessions in the German language
• Translate business needs into technical solutions and architecture blueprints
• Present technical concepts to both technical and non-technical audiences

System Integration

• Drive integration strategies with enterprise systems, including: ERP Systems: SAP; CAD Tools: Siemens NX, CATIA, and other design platforms; PLM Platforms: Teamcenter, Windchill, or similar
• Design and implement API-based integrations across the enterprise ecosystem
• Ensure seamless data flow between PLM and other business-critical systems

Required Skills & Qualifications

Education & Experience

• Bachelor's or Master's degree in Engineering, Computer Science, Information Technology, or related field
• 8–12+ years of progressive experience in the PLM domain and solution architecture

Technical Expertise

• Deep expertise in at least one major PLM platform: Siemens Teamcenter; PTC Windchill or an equivalent enterprise PLM solution
• Proven track record in solution architecture and enterprise system integration
• Strong understanding of core PLM concepts: Bill of Materials (BOM) management, Engineering Change Management (ECM/ECO), Product Data Management (PDM), Configuration management, Workflow and lifecycle management
• Experience with APIs, web services, and integration technologies
• Knowledge of enterprise architecture frameworks and methodologies

Language Requirements

• German: B1/B2 level (CEFR) – mandatory
  • Ability to conduct business meetings and technical discussions
  • Comfortable facilitating workshops and presenting in German
• English: Fluent (written and spoken) for international collaboration

Nice to Have

Industry & Domain Knowledge

• Experience in the automotive or manufacturing industries
• Understanding of industry-specific compliance and standards (e.g., IATF 16949, ISO 9001)

Emerging Technologies

• Knowledge of cloud platforms (Microsoft Azure, AWS)
• Familiarity with digital thread and digital twin concepts
• Experience with IoT, Industry 4.0, or smart manufacturing initiatives
• Understanding of Agile/DevOps methodologies in the PLM context

Middle Software Engineer (Computer Science Educator – Innovative STEM School, Spain)

Location: Southern Spain
Job Type: Full-time
Start Date: September 2026

🚀 About the Role

We are looking for a passionate Middle-level Software Engineer who is excited not only about building technology, but also about shaping the next generation of innovators.

Join a forward-thinking international STEM school where Computer Science is taught as a tool to understand and transform the world. This is a unique opportunity to combine your engineering expertise with mentoring, problem-solving, and real-world application of technology.

💡 What You’ll Do

• Design and deliver engaging Computer Science learning experiences based on real-world challenges
• Mentor students in programming, algorithms, and software development practices
• Contribute to building a modern, innovation-driven curriculum
• Inspire problem-solving, critical thinking, and creativity
• Support students in projects, competitions, and research initiatives
• Collaborate with an international team of educators and tech enthusiasts

🧠 What We’re Looking For

• 2–5 years of experience in software development (any modern stack)
• Strong understanding of Computer Science fundamentals (algorithms, data structures, systems thinking)
• Passion for sharing knowledge and mentoring others
• Experience with project-based or collaborative environments
• Strong communication skills in English
• Interest in education, innovation, or EdTech is a big plus

🌍 Why This Role is Different

• Work in a startup-like educational environment with freedom to innovate
• Combine software engineering + impact-driven work
• Live and work in Southern Spain 🌞
• Be part of building a next-generation learning model
• Opportunity to grow into leadership, curriculum design, or tech-education hybrid roles

🎯 Ideal Candidate

You’re a developer who:

• Enjoys solving real-world problems
• Wants to go beyond routine coding
• Is curious, creative, and impact-driven
• Would love to inspire others while continuing to grow technically

For our partners, we are currently looking for an experienced HR Director to join a fast-growing international company in the fintech industry.
 

📍 Location: Barcelona| Spain (office-based format)
🕒 Employment type: Full-time
🌍 English level: Upper-Intermediate / Advanced — mandatory
 

Key expectations:

• Building and scaling HR processes within a dynamic fintech environment
• Developing and implementing HR strategy aligned with business goals
• Managing recruitment, onboarding, performance management, and employee engagement processes
• Supporting leadership and department heads in people-related decisions
• Building strong corporate culture and internal communications
• Experience working in fast-paced international environments will be a strong advantage
   

Requirements:

• Proven experience in a senior HR leadership role (HRD / Head of HR / People Partner Lead)
• Experience in fintech, IT, crypto, payments, or related tech-driven industries
• Strong understanding of modern HR practices and people management
• Excellent communication and leadership skills
• High level of ownership and strategic thinking
• Fluent English is required for daily communication with international teams and partners
   

We are looking for someone proactive, business-oriented, and capable of building effective HR infrastructure in a scaling international company.

We are looking for a Team Lead who will take ownership of the architecture and technical evolution of our web platform, while leading a small team of full-stack engineers. In this role, you will be responsible for the full delivery cycle  from database design and REST API architecture to building modern Vue.js interfaces ensuring scalability, performance, and maintainability of the system. You will establish engineering standards, mentor developers, and shape the platform’s direction through thoughtful architectural decisions, performance optimization, and gradual modernization of legacy code. This is a high-impact role with cross-team collaboration, fast decision-making, and an AI-first approach to development.

Requirements
- 5+ years of full-stack web development experience with PHP and JavaScript
- Deep knowledge of Laravel: Eloquent, queues, events, middleware, service providers, testing with PHPUnit/Pest.
- Strong frontend skills with Vue.js 3 (Composition API, Pinia, Vue Router) and TypeScript.
- Experience leading a team (2+ people): code reviews, task planning, growing engineers, establishing standards.
- Solid understanding of relational database design and PostgreSQL: query optimization, migrations, indexing strategies.
- Experience with REST API design: versioning, error handling, authentication (JWT/OAuth), pagination.
- Familiarity with Docker and CI/CD pipelines.

Nice to Have
- Experience with GCP or comparable cloud (AWS/Azure) at the service level. 
- Knowledge of Vite build tooling, SSR, or micro-frontend patterns.
- Experience with real-time features (WebSockets, broadcasting).
- Familiarity with Pulumi / Terraform for IaC.
- Understanding of healthcare / pharma ad-tech domain.
- Experience with Playwright or Cypress for E2E testing.

Responsibilities
Own the architecture and technical direction of the web platform (Laravel backend + Vue.js frontend).
- Lead a team of 2-3 full-stack engineers: code reviews, sprint planning, mentorship, and career development.
- Drive feature delivery end-to-end: from API design and database schema to Vue.js components and user experience.
- Ensure code quality, test coverage, and maintainability across the full stack.
- Design and evolve the REST API layer: versioning, authentication, rate limiting, and documentation.
- Optimize application performance: query tuning, caching strategies, frontend bundle optimization.
- Collaborate with Product and Design to translate requirements into well-architected, scalable solutions.
- Manage technical debt and drive incremental modernization of legacy code.
 

What We Offer

- Fully remote with flexible hours (aligned with EU timezones for syncs).
- Influence on the quality assurance strategy across the entire engineering department.
- A cross-team role with visibility into every part of the product.
- AI-first tooling.
- Claude Code licenses and cutting-edge AI development workflows. 
- A team with no bureaucracy, decisions are made fast.
 

We are looking for a .NET C# Developer with expertise in building robust APIs using OData and Entity Framework. The ideal candidate will also have strong proficiency in writing efficient SQL queries and an understanding of best practices for data modeling, performance tuning, and security. 

As a part of our development team, you will work closely with cross-functional teams to design, build, and maintain scalable and secure APIs that integrate seamlessly with our services and data sources. 

Requirements: 

• Proven Experience: 3+ years of experience in .NET C# development, with a focus on building APIs and working with web services. 
• OData Expertise: Solid understanding and hands-on experience in implementing and consuming OData APIs. 
• Entity Framework: Experience working with Entity Framework to map data models to database schemas and interact with relational databases. 
• SQL Proficiency: Strong ability to write and optimize complex SQL queries and work with relational databases (e.g., SQL Server, PostgreSQL, etc.). 
• Web API Knowledge: Familiarity with RESTful API principles and experience working with technologies like JSON, HTTP, and Web API frameworks. 
• Version Control: Experience using version control systems like Git or SVN. 
• Problem Solving: Strong analytical and debugging skills, with the ability to troubleshoot and optimize code for performance and reliability. 
• Collaboration Skills: Excellent communication and teamwork skills to collaborate effectively with cross-functional teams. 

Key Responsibilities: 

• API Development: Design, develop, and maintain RESTful APIs with a focus on OData integration, enabling efficient querying and data retrieval. 
• OData Implementation: Utilize OData to expose data from various sources, allowing clients to query and manipulate data efficiently via HTTP requests. 
• Entity Framework: Work with Entity Framework to create, update, and query data models, ensuring efficient database interactions and optimal performance. 
• SQL Query Writing: Write complex SQL queries to interact with relational databases, optimize performance, and ensure data consistency. 
• System Design & Architecture: Participate in designing scalable, high-performance architectures for APIs and backend systems. 
• Code Quality: Write clean, maintainable, and well-documented code, following industry best practices and company standards. 
• Collaboration: Work closely with other developers, product managers, and QA engineers to deliver high-quality features on time. 
• Troubleshooting & Debugging: Identify, troubleshoot, and resolve technical issues, bugs, and performance bottlenecks in a timely manner. 
• Continuous Improvement: Stay up-to-date with the latest developments in .NET technologies, OData, Entity Framework, and SQL, and apply best practices to improve system performance, reliability, and scalability. 

Preferred Qualifications: 

• Cloud Experience: Familiarity with cloud platforms like Azure or AWS for hosting and scaling web applications.  
• Unit Testing: Experience writing unit tests and using frameworks like NUnit, MSTest, or xUnit.  
• Microservices: Understanding of microservices architecture and how APIs fit into distributed systems.  
• CI/CD: Familiarity with continuous integration/continuous deployment (CI/CD) pipelines and automated testing.  
• Real-Time Communication: Experience developing real-time applications and APIs using SignalR or similar technologies.  
• Messaging & Integration: Experience with Azure Service Bus or other enterprise messaging platforms for asynchronous communication and system integration.  
• Event-Driven Architecture: Understanding of event-driven architecture, messaging patterns, and distributed system design principles.  
• Event-Driven Development: Experience implementing event-driven solutions using queues, topics, publish/subscribe patterns, and asynchronous processing workflows.  
• Azure Ecosystem: Familiarity with Azure integration services and cloud-native development patterns, including messaging, event processing, and scalable backend services. 
• Experience leveraging AI-assisted software development tools such as Claude Code, GitHub Copilot, ChatGPT, or similar platforms to enhance developer productivity, code quality, troubleshooting, testing, and documentation.  
• Familiarity with modern AI-driven development workflows, including prompt-based code generation, code review assistance, refactoring, and automated test creation. 

We are looking for a skilled and driven DevOps Engineer to join our growing team. In this role, you will take ownership of building, maintaining, and scaling the infrastructure that powers our platform. You will ensure our systems are secure, performant, and highly available, while enabling seamless development and deployment workflows.

Responsibilities:

• Design, implement, and manage scalable infrastructure using Kubernetes and AWS.
• Optimize CI/CD pipelines to improve build and deployment times and reduce friction.
• Monitor and troubleshoot infrastructure performance and availability.
• Manage and maintain relational databases, primarily PostgreSQL.
• Implement and support secure authentication systems using SSO protocols (e.g., SAML, OIDC, OAuth2).
• Enhance infrastructure as code using tools like Terraform and Ansible.
• Ensure security best practices are applied across all infrastructure components.
• Collaborate cross-functionally with development, QA, and product teams.

• Drive automation of operational tasks to increase team efficiency and reduce manual toil.

   

Required Skills:

• BA/BS in a technical or engineering discipline or equivalent experience
• 5+ years of experience in a DevOps, SRE, or Infrastructure Engineering role.
• Strong experience with Kubernetes (EKS, GKE, or self-managed).
• Deep knowledge of AWS core services (EC2, S3, IAM, RDS, etc.).
• Knowledge of containerization technologies (e.g., Docker, Kubernetes, Helm)
• Solid understanding of networking concepts (VPCs, subnets, routing, firewalls, DNS).
• Proficiency with infrastructure-as-code tools (Terraform, Pulumi, or CloudFormation).
• Comfortable with monitoring tools (Prometheus, Grafana, CloudWatch, etc.).
• Strong scripting or programming ability (Python, Bash, or Go).

• Solid understanding of system security and best practices.

   

Preferred Skills:

• Familiarity with SSO protocols such as SAML, OAuth2, and OpenID Connect.
• Experience managing and tuning PostgreSQL in production environments.
• Exposure to log aggregation tools (ELK, Loki, or Fluent Bit).
• Experience with CI/CD tools like GitHub Actions, Jenkins, or CircleCI.