Senior Staff Backend Engineer for AI Applications

BoltWarsaw, Poland

On-site Full-time

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Experience Level

Mid to Senior

Qualifications

We are seeking candidates who possess a strong background in backend engineering, particularly in AI and automation technologies. You should demonstrate experience in designing scalable systems, a solid understanding of distributed computing, and a passion for innovating within the AI domain.

About the job

Join Bolt's Customer Support Automation team as a Staff Backend Engineer specializing in AI Applications. In this pivotal role, you will design and architect the foundational AI agent infrastructure that supports our automation solutions. Leverage your expertise to create multi-agent orchestration frameworks, execution engines, and evaluation pipelines that scale our Customer Support operations. If you are enthusiastic about agentic AI, distributed systems, and building high-performance platforms, this position is tailored for you.

About Bolt

Bolt is a leading tech company, with over 200 million customers across more than 50 countries. Our rapid growth in Europe and Africa is a testament to our dedicated team. We are committed to fostering an inclusive environment where diverse perspectives are valued, and we believe in creating cities designed for people, not vehicles.

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Senior Application Support Engineer at Tripadvisor | Krakow

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Senior Staff Backend Engineer for AI Applications

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Apr 15, 2026

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Our Mission and VisionAt Solidgate, we are driven by a clear mission: to empower exceptional entrepreneurs in building remarkable internet companies. Our goal is to support the builders—those who are defining the digital economy—by providing them with the financial infrastructure they truly deserve. We are ambitiously pursuing our vision to become the world’s leading payments orchestration platform.We believe that the future of payments is shaped by individuals who think big, take ownership, and infuse curiosity and drive into their work. This is the kind of talent we are eager to welcome aboard.About the RoleSolidgate is committed to building a robust financial infrastructure for rapidly growing internet businesses across the globe. Our platform processes millions of payments daily and operates within a highly regulated fintech landscape where security is an integral product requirement—far more than an afterthought.Our engineering team is responsible for constructing and scaling a sophisticated cloud-native platform comprising over 120 microservices. As we continue to expand, we are enhancing our security framework by introducing a dedicated Application Security Engineer position.In this role, you will be pivotal in safeguarding our business and revenue by integrating security into the software development process—starting from initial design decisions through to CI/CD pipelines and live production systems.This position is hands-on and focuses on embedding security within the software development lifecycle while minimizing real product risks.You will collaborate closely with engineering teams to:Design secure application architecturesEnhance secure coding practicesIdentify vulnerabilities early in the development lifecycleContinuously advance application security as a routine aspect of engineering workYour contributions will directly influence the security of software development across a large microservices ecosystem, impacting standards, tools, and the overall engineering culture.Explore our technology stack here.

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Apr 1, 2026

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Engage in continuous collaboration with Business Analysts throughout all phases of implementation projects (Design, Build, Test, Hyper Care) utilizing the SCRUM framework.Configure the Ivalua Buyer application based on the specifications provided by Business Analysts.Prepare and conduct Unit Tests to ensure application functionality.Perform System Integration and/or Regression Tests to validate system performance.Analyze and troubleshoot system bugs to ensure optimal performance.Assist the project team in creating project documentation as required by the Client.

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Full-time|On-site|Warsaw

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Senior Application Security Engineer at Infiterra | Poland (Remote)

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Mar 27, 2026

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Technical Support Engineer

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Full-time|Hybrid|Krakow, Poland

About UsAt Hitachi Vantara, we are the data foundation trusted by innovators worldwide. Our robust and high-performance data infrastructure allows clients—from financial institutions to entertainment venues—to focus on harnessing the power of data. For instance, if you have witnessed the Las Vegas Sphere, you have seen how we enable businesses to automate, optimize, and create memorable experiences for their customers. We are currently laying the groundwork for our next phase of growth and are searching for individuals who thrive in a diverse, global team environment and are passionate about making a significant impact through data. Join Hitachi Vantara’s Global Support Centre and deliver exceptional technical support for our enterprise storage and software solutions. Collaborate with customers and engineering teams globally to tackle complex issues, enhance product experiences, and strengthen our support capabilities.Meet Our TeamAs part of Hitachi Vantara Global Support, we provide remote technical support from Level 1 to Level 3 for all our customers. Collaborating closely with our field support and engineering teams, we ensure comprehensive support for all our solutions across various market segments.This position is based in our Krakow office, following a hybrid model (1 day per month in office), and offers structured training, opportunities for professional development, and the chance to operate within a global, engineering-driven support organization.Your ResponsibilitiesDeliver remote technical support for enterprise storage, software, and infrastructure systems.Diagnose and troubleshoot configuration issues, product failures, and customer technical inquiries.Manage customer cases from initial assessment through to resolution or escalation.Collaborate with global support, engineering, and services teams to solve intricate problems.Ensure service levels are maintained and assist in managing incoming support queues.

Mar 9, 2026

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