Top Software Engineer Jobs in Krakow

Develop backend features for Splunk’s federated query and data lake capabilities. Design and implement secure, maintainable distributed systems using Java or Scala, automated testing, cloud infrastructure, and infrastructure as code. Troubleshoot production issues, conduct root cause analysis, collaborate with product and engineering partners, participate in code reviews, mentor colleagues, and contribute to technical roadmaps.

Design and develop scalable full-stack applications, enterprise service APIs, AI agents, and intelligent self-service portals. Integrate Microsoft Graph, Google Workspace, OAuth 2.0, and Entra ID while applying RAG and prompt engineering. Build MCP servers, orchestrate AI agents, optimize distributed cloud applications, and guide technical architecture and engineering best practices.

Design and deliver full-stack applications using Python, FastAPI, React, and TypeScript. Build production LLM applications with RAG, prompt engineering, structured outputs, OpenAI APIs, vector search, and document processing. Monitor and improve LLM quality, maintain Azure-hosted applications, and integrate authentication. Collaborate with clients and senior stakeholders to translate ambiguous business needs into practical technical solutions.

Designs and builds Notabene’s Go-based transaction platform for secure, scalable, multi-tenant crypto transfers. The role focuses on distributed systems correctness, PostgreSQL performance, cloud infrastructure, observability, auditability, and regulated-data security. The engineer owns production operations, writes technical designs, reviews code, mentors teammates, collaborates with product and compliance teams, uses AI coding agents, and participates in on-call rotations.

Develop resilient backend software for client projects using .NET and C#. Responsibilities include applying design patterns, resolving security and performance issues, writing complex tests, interpreting code metrics, supporting microservice architectures, and collaborating directly with German- and English-speaking clients.

Develop and maintain C++ software for data logging, visualization, and processing on Linux platforms. Design and execute software tests, troubleshoot defects, prepare technical documentation, support deployed tools, and collaborate with software, hardware, and systems integration teams. The role also involves implementing standards-compliant solutions, resolving project technical issues, and continuously improving technical expertise.

Develop and maintain high-availability distributed systems supporting Akamai’s global network. Responsibilities include full product lifecycle ownership, improving testing, deployment, monitoring, and maintenance capabilities, mentoring junior engineers, and evaluating technologies for network operations automation. The role requires Linux/Unix development experience, Python, Go, or shell scripting, knowledge of internet protocols, version control expertise, and strong communication skills.

Design, develop, and maintain high-availability distributed systems supporting Akamai’s global network. Responsibilities include full product lifecycle ownership, improving testing, deployment, monitoring, and maintenance, mentoring engineers, and evaluating network operations technologies. The role requires extensive Linux/Unix development experience, proficiency in Python, Go, or shell scripting, knowledge of internet protocols, and familiarity with multiple version-control systems.

Build and maintain foundational security components for SaaS and on-premise products using Go and/or C++. Develop secure, tested, scalable software; troubleshoot production issues; improve automation, reliability, compliance, and operations. Participate in 24/7 on-call and SRE responsibilities while collaborating with engineering, product, and support teams. Preferred experience includes cloud infrastructure, Kubernetes, Terraform, cybersecurity services, secrets management, cryptography, observability, and HashiCorp tools.

Design, build, and operate highly available backend communications systems across multi-region and multi-tenant environments. Develop messaging infrastructure, APIs, vendor integrations, observability, and resilient distributed services. Define technical goals, service-level objectives, and operational practices; participate in on-call support; collaborate cross-functionally; improve engineering standards; and mentor teammates.

Designs, builds, and operates scalable identity services supporting authentication, authorization, and user lifecycle management across Splunk and Cisco products. The role develops secure APIs, unifies identity systems, implements modern identity protocols and authorization models, and delivers distributed, fault-tolerant services. It also contributes to identity strategy, explores AI/ML-driven security automation, and collaborates with product, security, and infrastructure teams.

Lead software engineering efforts for Samsara’s External Platform EMEA, building scalable distributed systems, APIs, reporting, administration, integrations, and business-critical infrastructure. Lead technical discussions, influence architecture and roadmap, deliver full-stack features, maintain production systems, and support customer-focused iteration. Mentor engineers, hire and develop high-performing teams, and contribute to machine learning-powered products and long-running projects.

Develop and maintain Kotlin applications for a telecommunications client. Responsibilities include improving code quality, implementing functionality with technical and product teams, maintaining documentation, performing integration, regression, and acceptance testing, and supporting production issue resolution.

Build and launch customer-facing AI product capabilities from concept through production, measurement, and iteration. Partner with Product, Design, Data, Security, and platform teams to create reliable, measurable, trusted AI experiences. Responsibilities include evaluating probabilistic systems, designing failure paths, monitoring adoption and quality, supporting production readiness, and using customer feedback to improve, pause, or retire features.

Develop and scale NVIDIA DGX Cloud systems software across Kubernetes, GPU infrastructure, distributed inference, and cloud platforms. Lead performance characterization, benchmarking, monitoring, automated testing, debugging, and root-cause analysis for ultra-large clusters. Build continuous performance testing through CI/CD, optimize AI workloads and cost per token, collaborate with customers and researchers, and engage with Kubernetes, CNCF, and NVIDIA open-source communities.

Design and deliver scalable, distributed, low-latency platform systems and integrations. Build features, improve server and process efficiency, and enhance system scalability, stability, and cost effectiveness. Own projects end to end while collaborating with product, engineering, and partner teams across locations. Work on audience segments, data processing, AI-powered discovery, targeting, and digital advertising technologies.

Design, build, and optimize GPU-accelerated deep learning inference software and frameworks (e.g., SGLang, vLLM). Profile and tune LLM and Generative AI model serving across NVIDIA accelerators, contribute code to inference libraries, and collaborate across teams to deploy high-performance multi-GPU solutions.

Build and launch customer-facing AI product capabilities from concept through production. Translate ambiguous opportunities into testable product slices, use existing retrieval, evaluation, guardrail, prompt, and observability services, and measure adoption and quality. Partner with Product, Design, Data, Security, and platform teams while ensuring reliable failure handling, production readiness, automated testing, observability, and continuous improvement based on customer feedback and business outcomes.

Build and operate backend-first, distributed platform services powering APIs, integrations, eventing, and analytical data systems to enable AI agents and enterprise-scale agentic workflows. Design for high throughput, reliability, security, and observability; apply AI-assisted engineering tools; mentor engineers and influence architecture, tooling, and developer experience.

Administer and maintain Linux server and embedded environments, including configurations, networking, permissions, services, and troubleshooting. Develop, test, and maintain C++ and Python software for data logging, processing, and visualization. Diagnose system, hardware, network, and application issues; create technical documentation; support product tools; and collaborate with software, hardware, and integration teams to improve system quality and efficiency.

Design, build, and operate scalable backend storage services for RelativityOne using C#/.NET and Azure. Develop Blob Storage and Cosmos DB solutions, gRPC and REST APIs, multi-tenant capabilities, lifecycle management, access controls, and observability. Participate in architectural design, production troubleshooting, incident response, roadmap planning, and on-call rotations while collaborating with product engineering, SRE, and security teams.

Develop scalable full-stack applications within a Scrum engineering team on a greenfield project. Responsibilities include designing responsive React interfaces, building NestJS microservices with PostgreSQL, estimating development effort, owning delivery quality and schedules, and optimizing applications for performance, stability, accessibility, mobile devices, and weak network conditions. The role also emphasizes secure development following OWASP guidelines and comprehensive Jest unit testing.

Build and ship production software features in an Agile/Scrum environment, focusing on API-first services and AI-powered functionality. Integrate LLMs and AI APIs, develop with Java, Python, JavaScript, or TypeScript, and work with MongoDB and cloud-native systems. Responsibilities include coding, testing, debugging, code reviews, system design collaboration, observability, secure development, and cross-functional teamwork. The role is designed for an early-career engineer with opportunities to develop expertise in AI, distributed systems, and scalable software architecture.

Develop and maintain secure backend services and full-stack web applications for Akamai authentication platforms. Build scalable Python solutions, REST APIs, and integrations while applying web security and OWASP practices. Participate in system design, deployment, containerization, certificate handling, production support, and post-release troubleshooting. Collaborate across the full software lifecycle and use modern AI-assisted development tools. Optional experience includes frontend development, Java/Spring, NoSQL, and OAuth or SAML authentication systems.

Develop and maintain highly available, mission-critical emergency call-handling platforms using Java and modern DevOps practices. Responsibilities include designing, implementing, testing, deploying, monitoring, and supporting microservices and REST APIs in cloud and private-cloud environments. The role involves Kubernetes, Docker, CI/CD, automated testing, observability, infrastructure automation, and continuous delivery within an agile team supporting 24/7 operations.