Top Software Engineer Jobs in Krakow

Design, implement, test, and support scalable web and backend services. Collaborate with product, design, and ops to deliver features, improve performance and availability, troubleshoot production issues, and maintain high-quality code and testing practices.

Join Ericsson as an intern in RAN Traffic Control to develop and support 5G Radio Access Network software. Participate in the full software lifecycle—study, coding, testing, documentation—troubleshoot issues, reproduce faults, manage configurations, and explore AI/ML solutions to improve operations while being mentored by experienced engineers.

As a Software Engineer, you will implement and maintain scalable, reliable components for the Akamai Inference Cloud platform, focusing on cloud-native technologies, distributed systems, and API development.

As a Full-stack Software Engineer, you will develop backend systems, integrate frontend applications, and solve complex problems in a collaborative team environment.

Build end-to-end full-stack AI features on a Ruby on Rails backend and React frontend, design and run experiments (A/B tests and AI evaluations), implement AI infrastructure for reliable LLM inference, and iterate quickly to scale production-ready LLM-powered products.

The Infrastructure Software Engineer will build and optimize systems managing vast data, collaborate with teams for reliability, and handle operational issues.

The Senior Infrastructure Software Engineer will build scalable systems, manage large data, and innovate solutions for performance and reliability, impacting millions of users.

Develop, implement, test and integrate software from structured requirements (primarily in Ada). Prepare and review software requirements, perform code and requirements reviews, improve development methodologies and coding practices, and communicate status and issues with stakeholders.

As a Software Engineer in Infrastructure Reliability, you'll build distributed systems that enhance platform reliability, implement traffic control mechanisms, and develop monitoring tools, working closely with diverse teams.

Design and develop scalable, high-quality backend systems for traffic automated road closure detection, handling the full software development lifecycle.

As a Software Engineer at Coupa, you'll design and develop platform systems, advocate best practices, and improve operational processes, contributing to a collaborative team focused on creating high-quality SaaS solutions.

Build and maintain backend Collections platform to manage delinquent loans, develop recovery strategies, ensure high availability and reliability, implement monitoring and metrics, support operations and on-call, collaborate with product, risk, design and analytics, write well-tested extensible code, perform code reviews and debugging, and participate in team growth activities.

Join the Collections backend team to design, build, and maintain scalable, highly available systems that manage delinquent loans and recovery strategies. Collaborate with product, risk, and engineering teams to implement reliable, well-tested backend solutions, debug large codebases, and contribute to team growth and operational excellence.

Senior Software Development Engineer on the Regional Growth team responsible for designing large-scale web and mobile architectures, integrating regional identity and payment systems, improving fraud prevention, owning customer-facing features, mentoring engineers, improving code quality and observability, collaborating cross-functionally, and participating in on-call rotation.

Design and implement large-scale web and mobile architectures, integrate with local payment and identity services, optimize web performance, build fraud prevention systems, collaborate across product and marketing, own customer-impacting features, and participate in an on-call rotation.

As a Staff Software Engineer, you will participate in agile practices, design, develop, and deploy scalable software, mentor junior engineers, and ensure code quality in a collaborative team environment.

Develop and implement 5G RAN baseband scheduler (UPC) features across design, architecture, and testing. Improve scheduling software quality, collaborate with architects, implement domain backlog, and support product roadmap and customer feedback.

Develop and maintain C++ software (C++17+) for radio base station control and supervision. Write unit tests (Google Test), integrate tests in Java/Erlang, perform manual hardware testing and troubleshooting, work in Agile, create technical documentation, drive product-related activities, handle requirements and contribute from study to feature delivery while using AI-assisted development tools.

Design and build LLM-based autonomous security agents and self-healing remediation pipelines. Integrate AI-driven threat detection into CI/CD and GitOps workflows, automate vulnerability research, patching, and security orchestration across cloud-native infrastructure.

Lead development and evolution of Java-based NDS/NDS.Live compiler and validation toolchains. Own architecture, performance, scalability and quality; lead and mentor an agile team; engage customers to define requirements and drive engineering best practices and technical roadmap.

Lead design and development of pipeline management services and APIs for large-scale batch and streaming data pipelines. Own orchestration, scheduling, workflow state management, and platform reliability. Drive architecture for high-throughput, low-latency distributed systems, mentor engineers, collaborate with product and engineering teams, and improve CI/CD, automation, and observability for production services.

Build and evolve Remitly's shared mobile and web platform, including architecture, component library, design system, CI/CD and release pipelines. Enable product teams via tooling, documentation, architecture reviews, and mentor junior engineers while ensuring accessibility, localisation, observability, and regulatory quality standards.

Build core ledger services and APIs for Remitly’s UFA platform, focusing on correctness, atomic money movement, distributed-systems guarantees, idempotency, and production readiness. Design, implement, and operate scalable cloud services, collaborate with partner teams and external banking partners, and help bring regulated markets live while ensuring reliability, observability, and compliance.

Build and maintain Marketing AI platform components end-to-end: gather partner requirements, design and implement backend services, integrate LLMs and AI tooling, analyze data to inform decisions, ensure production reliability and security, and collaborate across teams to deliver production-ready capabilities.

Join a cross-functional product team as a Senior Backend Engineer to design and implement resilient, secure .NET microservices. Responsibilities include building and maintaining APIs, diagnosing performance issues, writing comprehensive tests, addressing security vulnerabilities, interpreting code metrics to improve maintainability, and collaborating directly with clients while staying current with technical trends.