Senior Backend Engineer

We're looking for a Senior Backend Engineer to take technical ownership of our web scraping platform. This is a hands-on role with real autonomy: you'll shape how we acquire data at scale, have a strong voice in how the system is built and evolved, and be the person the team turns to when hard extraction problems land on the table.

What you will be doing:

• Take ownership of the architecture and reliability of our scraping platform end to end;
• Design, implement, and scale extraction pipelines in Python and Go, choosing the right tool for each job;
• Apply LLMs to extraction and normalisation problems, with evaluation and guardrails so output stays accurate and costs stay predictable;
• Build and run the supporting infrastructure: scheduling and orchestration, proxy and session management, queuing, storage, and observability;
• Solve anti-bot systems, rate limiting, browser automation, fingerprinting, deduplication, and change detection at scale;
• Develop backend services and APIs that deliver structured, well-documented datasets to downstream consumers;
• Contribute to the platform roadmap by surfacing technical priorities, risks, and trade-offs;
• Raise the bar on engineering practice (testing, code review, documentation, monitoring) and share knowledge with less experienced colleagues;
• Take part in architecture discussions and bring well-argued recommendations on build-vs-buy and technical direction.

Requirements:

• Background in Computer Science, Software Engineering, or a related technical field;
• 5+ years of professional software engineering experience, with a substantial part of it in data acquisition or backend systems;
• Strong production experience in Python, and solid working experience in Go (or deep proficiency in one plus demonstrated ability to pick up the other quickly);
• Proven track record building and operating scraping systems at scale — not just scripts, but systems that stay up;
• Deep understanding of HTTP, HTML/DOM parsing, browser automation, and web protocols;
• Hands-on experience with anti-bot countermeasures, proxy infrastructure, and rate-limit strategies;
• Strong grasp of concurrency, distributed systems, and API design;
• Experience with SQL and NoSQL databases, including schema design and query performance;
• Comfortable with Docker, CI/CD, and cloud infrastructure;
• Ownership mindset: you scope your own work, make decisions, and are accountable for what you ship;
• Experience mentoring engineers and influencing technical direction;
• Fluent in English, both written and spoken.

Perks:

• Flexible Hybrid Work System;
• 15th Month Bonus Salary Policy;
• 4 extra vacation days;
• Participation in International Projects;
• Company-Paid Certifications;
• Training, career progression and support;
• Team Building Activities;
• Innovative & Young Culture.

Location:

• We're based in Porto, Portugal. Remote work is possible, but we are only considering candidates located in Portugal.