Lead Backend Engineer – Python, Security

OANDA Poland sp. z o.o. in Kraków seeks a Team Lead with strong C++ application development experience to lead the backend trading platform team.You will guide, mentor, and contribute to hands-on technical execution while shaping the team’s direction. Collaborate with business and technical leadership to translate requirements into actionable goals, plan...

We are building a financial platform that willresearch and run systematic trading strategies.We collaborate with the quant team on strategiesresearch, risk modeling, and portfolio optimizations. Our software engineering team embeds the correspondinglogic into the platform.Similar systems already exist on the market, butquants need to use several of them to...

OANDA Corporation in Krakow is seeking a Lead Security Engineer to drive secure software and mentor a talented security team. You will design authentication, authorization, 2FA, and protect transaction integrity while guiding DevSecOps across CI/CD and AI governance.Work spans on-premise and cloud-native environments, with Go, Python, JavaScript, C++, and...

Job descriptionUpside is a software consultancy built by engineers, for engineers. We partner with global companies to solve real, complex technical challenges. We’re deep into Applied AI and R&D, building both production-grade platforms for clients and our own open-source tools like Enthusiast (Agentic AI framework).We operate in a Forward-Deployed model....

Job descriptionUpside is a software consultancy built by engineers, for engineers. We partner with global companies to solve real, complex technical challenges. We’re deep into Applied AI and R&D, building both production-grade platforms for clients and our own open-source tools like Enthusiast (Agentic AI framework).We operate in a Forward-Deployed model....

Lead Application Security Engineer ID71664 Full time | AgileEngine | Poland Posted On 08/27/2026 Job Information City Kraków State/Province Malopolskie 30-010 IT Services Job Description AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in...

GFT Poland is seeking a Senior Backend Engineer to build production-grade AI and GenAI solutions using Python and Java in a hybrid Kraków environment. You will contribute to LLM-based capabilities, RAG pipelines and agentic workflows while aligning with security, testing and governance standards.The role emphasizes integrating Python with existing Java...

ITDS in Kraków is seeking a Senior Software Security Engineer – Cloud Native Backend to shape secure, scalable backend services. You will work with Python, Node.js, and Go in a hybrid, cloud-first environment, implementing OAuth2/OpenID Connect flows on GCP and building resilient, cost-efficient systems.The role emphasizes security by design, performance...

Company Descriptiondyvenia supports some of the biggest and most respected organizations in Europe in leveraging Cloud infrastructure, advanced analytics, and solid data foundations so that they can gain actionable insights and make impactful business actions based on their data. We work with state-of-the-art technologies, have some of the best people on our...