Technology Jobs in Barcelona, Spain (Now Hiring) — 2,338 open — Page 89

ABOUT CODEWAY

Codeway is a global consumer tech company with more than 400M users worldwide.

Since 2020, we’ve built and scaled 60+ mobile apps across creativity, productivity, wellness, language learning, and entertainment.

Our flagship apps — Retake AI, Cleanup, Learna, and DramaPops — and many of them lead their categories globally. In 2024, we became the most downloaded app publisher on iOS, driven by cutting-edge AI research, sharp data-driven execution, and a relentless focus on product and marketing.

We’re a team of 300+ people across İstanbul and Barcelona who bring curiosity, passion, trust, and ownership to everything we build. Recognized as a #1 LinkedIn Top Startup and a Great Place to Work in Europe, Codeway is where ambitious people do their life’s best work.

We’re building the next generation of consumer tech and reimagining what mobile apps can be.

This is Codeway. This is our way. Join us.

ABOUT WISHLABS

Wishlabs is the parent company of Codeway, building consumer generative-AI mobile apps used by millions worldwide. Our flagship product, Retake AI, is a mature product with millions of users, powered by in-house AI models alongside frontier model capabilities. We ship fast, work directly with the models, and turn new capabilities into products people actually use. Our Applied AI team sits at the center of that: close to the models, close to the products.

ABOUT THE ROLE

We’re looking for an Applied AI Engineer to join our team in Barcelona.

This is a hands-on, product-focused AI engineering role for someone who can explore ambiguous product and business areas, identify where AI and agents can create real impact, and build those solutions end to end.

The core of the role is discovery. You won’t only be working from clearly defined tickets. You’ll be expected to proactively spot opportunities, propose new AI capabilities, and shape solutions based on what frontier models now make possible.

You’ll work closely with Product and internal stakeholders to build AI-powered tools, agentic workflows, and internal products that are reliable, useful, and measurable. The work spans internal AI tooling and product-facing capabilities across our apps.

WHAT YOU'LL DO

• Explore product and business areas to identify where AI, agents, and frontier model capabilities can meaningfully improve outcomes.

• Propose and shape new AI-powered capabilities that may not already be clearly defined.

• Build end-to-end AI products, internal tools, and agentic workflows.

• Work directly with model APIs such as Claude, OpenAI, Gemini, or similar.

• Build agent harnesses, tool integrations, context flows, and custom scaffolding where needed.

• Connect agents to tools, data, internal systems, and workflows using MCP or similar integration patterns.

• Build usable interfaces and prototypes, particularly using TypeScript/Next.js.

• Create repeatable evaluation systems to measure quality, reliability, cost, latency, safety, and regressions over time.

• Work closely with Product and internal stakeholders to turn ambiguous opportunities into working solutions.

• Think carefully about safety when agents interact with real tools, data, triggers, and internal systems.

OUR STACK & APPROACH

We build close to the models rather than relying heavily on all-in-one frameworks.

Our current approach includes:

• Models: Claude as the primary model, plus OpenAI and Gemini depending on the task.

• Languages: Python for AI and agent work; TypeScript/Next.js for interfaces.

• Agent harnesses: Claude Code / Agent SDK, Codex CLI, OpenClaw, Hermes Agent, and custom scaffolding.

• Tool integration: MCP for connecting agents to tools, data, and internal systems.

• Memory and retrieval: Vector and memory layers such as Mem0, Zep, or similar when the use case requires it.

Experience with frameworks like LangChain or LangGraph is welcome, but we care more about your ability to work directly with model APIs, reason about tools and context, and build reliable systems from first principles.

WHAT YOU'LL DO

• Strong experience building and shipping end-to-end software products, internal tools, or AI-powered systems.

• Strong Python skills for AI, backend, or agentic workflows.

• Experience with TypeScript and frontend/product engineering, ideally with Next.js or similar.

• Experience working directly with LLM/model APIs such as Claude, OpenAI, Gemini, or similar.

• Active interest in the frontier of AI, including new models, agentic systems, and emerging patterns like Claude Code-style harnesses and loop engineering

• Understanding of how AI agents work in production, including tool use, context, memory, loops, triggers, and harnesses.

• Experience building or contributing to evaluation systems for AI products, including test sets, graders/evaluators, LLM-as-judge, tracing, or regression tracking.

• Strong product sense and the ability to identify what should be built, not just execute predefined requirements.

• Comfort working with ambiguity and proactively shaping solutions.

• Practical awareness of agent safety, including permissions, approval gates, logging, prompt injection risks, and limiting blast radius.

• English fluency.

NICE TO HAVE

• Experience with MCP or similar tool/data integration protocols.

• Experience with memory or retrieval systems such as vector databases, Mem0, Zep, or similar.

• Experience with generative AI beyond text, including image or multimodal systems.

• Experience building internal AI tools, productivity systems, or workflow automation.

• Basic knowledge of Docker and relational databases such as MySQL.

• Turkish language skills.

• Previous experience in a fast-moving product, startup, or scale-up environment.

WHAT WE OFFER

· A Competitive Compensation Package. Long story short, we take care of you.

· A Meal Compensation. That is actually enough for a decent & nutritious lunch, we’re not following the industry standard.

· Full Health Benefits. To keep you away from all the trouble, we provide unlimited private health insurance and cover the HPV vaccine.

· Pet Adoption Support. We cover the primary healthcare expenses, parasite vaccinations, and microchip costs that may arise within the first year after employees adopt a pet.

· Cool Tech Stack. Macbook, iPhone 15 Pro, magic mouse, magic keyboard; an adjustable desk with a 4K screen and any other gadget you may need in your job.

· Sport Activities Support. We care about your physical wellbeing and support your gym membership.

· Flexible Schedule. This isn’t a “clock in, clock out” company. We care about your productivity, not tracking every minute you’re on site. It’s up to you to always be responsible with your work, no matter where you are or what schedule you’re keeping.

· English Course Support. Be more global and perform best at your work.

· A Top-Notch Office. Located at the heart of Barcelona in the iconic Edifici Estel.

· Codebrew. Yes, you’ve heard it right: We love coffee so much that we’ve built our own coffee shop inside our office, where we also provide healthy snacks at all hours.

· Free Breakfast & Lunch. At Codebrew - every day.

· No Dress Code. Dress as you like.

· Dream Team. Average Codeway member is young, talented, and passionate - which makes our working environment extremely dynamic. Need proof? Take a look at our Instagram.

· Gaming Area. Whenever you need to take a break from hard work and relax with your favorite games, our PS5 corner will be waiting for you.

· Software Support. Subscription to any software you might need to perform at your best.

· Public Transportation Support. Daily public transportation support is on us, covered by an additional monthly compensation.

THE RECRUITING PROCESS

We are committed to keeping our recruitment process short and transparent. Here’s how it looks like:

1. Application: Send us your CV or LinkedIn profile. You can also just write a few words about yourself.

2. Talent & Culture Interview: Let’s talk about your experience & expectations and see what we can achieve together.

3. Technical Interview: You will meet with future team lead to go over the case and your technical capabilities in detail.

4. Case Study: We might send you a task to solve.

5. Final Interview: A final interview with one of our senior leaders.

6. Welcome Aboard! You are now a part of the team.

Your personal data that will be collected through your applications made due to this advertisement will be processed automatically by the data controller Codeway in accordance with the Personal Data Protection Law No. 6698 ("KVKK") and relevant legislation for the purpose of conducting job application processes. You can access detailed information on this matter from the "Candidate Information Notice"page at https://www.codeway.co. Codeway processes the personal data of job applicants in accordance with relevant legislation. "Privacy Notice for Employee Candidate" summarizes the data processing procedures during the application process.