4 senior full stack developer jobs in Kraków

Job Description We are looking for a Principal Software Engineer to shape the architecture and delivery of our modern, AWS-native platform powering underwriting intelligence, GenAI-driven analysis, and high-volume content processing. Working across Python, .NET, PostgreSQL/Aurora, OpenSearch, and LangGraph-based services , you will own technical direction, system quality, scalability, and reliability across the platform. This is a senior individual contributor role with significant technical leadership responsibility, including setting engineering standards, mentoring engineers, driving architectural decisions, and coordinating across product and platform teams . Responsibilities Shape platform architecture across ingestion, transformation, storage, APIs, and AI-powered services, ensuring scalability, resilience, and maintainability. Own end-to-end technical delivery of AWS Batch content pipelines, Lambda-based workflows, and .NET 8 REST/GraphQL APIs. Drive...

HYBRID MODE: 3 DAYS FROM THE OFFICE IN KRAKOW) (if you live outside of Krakow, relocation is also possible) Project Description: You will be working in the FX Linear Client and Trading Apps crew in Krakow, which is part of a global Investment Bank Technology organization. The team is working using agile principles and is responsible for building and maintaining applications that are essential for FX trading, including supervision and regulatory reporting systems, and possibly others. As a Senior Java Software Engineer, you will play an important role in delivering business value while shaping the future of our technology stack as well as assuring high quality and reducing technical risk for developed solutions. We're looking for a passionate Software Developer with strong Can-Do attitude who: • has strong sense of ownership and drives front-to-back assigned deliveries within a supportive team environment • cooperates with different stakeholders in introduction and...

Fancy helping to shape the future of FinTech? We’ve always been innovators. In 1996 we were the first company to share exchange rate information, free of charge on the internet. Today, we’re a world leading online trading group. Join us to: Help build the future of online trading. Be part of a culture driven by integrity, and global impact. Become part of an award-winning* company. We are only as good as our people. Luckily, our people are the best. Join us! *You can check out our full list of awards here . How do we work? This is a senior leadership role reporting to the CTO, working in close partnership with the heads of product, infrastructure, data, and security. You'll be responsible for the overall health, productivity, and direction of an ~80-person engineering department spanning multiple product areas. We work in a hybrid model from our offices in Krakow or Warsaw. Travel to build relationships with engineering teams and stakeholders in-person further...

So, who are we? IG is a FTSE 100 fintech operating across five continents, serving over 1.3m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always operated. What that means for the people who work here is real: genuinely complex problems to solve, the technology and resources to tackle them properly, and the kind of scope that's rare in established businesses. The bar is high – bring a curious and forward-thinking mindset and we'll give you the platform to define what comes next. Join us at IG – the future gets built here. Your team We are IG UK's Crypto product engineering team, having successfully delivered the company's #1 strategic priority - a fully licensed, FCA-regulated crypto trading platform launched in December 2025. We maintain elite engineering standards through cloud-native AWS architecture, comprehensive observability, and a culture of end-to-end...