Remote Backend Developer jobs open to Poland.

Kubernetes

Elixir or Erlang, Distributed systems, Real-time, low-latency systems, Kubernetes, CI/CD, Observability mindset, Networking fundamentals, Backend systems ownership, Service-oriented architectures, Logging, metrics, dashboards, alerting

TelnyxTelnyx is a global telecommunications B2B company specializing in cloud-native VoIP solutions and connectivity applications, headquartered in an undisclosed location, serving businesses worldwide.

Rust · Kubernetes

5 years of experience, Rust, Kubernetes Control Planes, DPU architectures, Datacenter Networking, gRPC/Protobuf, OpenTelemetry, async concurrency models, mock-driven testing, custom Kubernetes operators, high-density infrastructure

MirantisMirantis is a Campbell, California-based B2B company specializing in open source cloud computing and Kubernetes-native AI infrastructure, serving diverse sectors including automotive, healthcare, and financial services.

PHP

PHP, SOLID principles, NoSQL (Redis, MongoDB), AI-assisted engineering tools, Cloud-native infrastructure, High-volume transaction applications, Technical documentation, Agile environment, Problem-solving mindset, Empathy in teamwork

Java · AWS

5 years of experience, Java 7, Java 8, Oracle, Progress, Liquibase, AWS, Enterprise application design, Object-oriented programming, Agile methodologies, Oil & Gas Upstream knowledge

Netrix GlobalNetrix Global is a global B2B IT consulting and managed services company headquartered in an unspecified location, specializing in cybersecurity, cloud migration, and digital workplace solutions for various industries.

Deep Architecture Experience, Modularization in Production, Cross-Team Technical Leadership, Agentic AI Leadership, Influence Without Authority, Mentorship, Product Judgment

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Ruby · Kubernetes · Docker

Ruby/Rails, Go, AI fluency, Feature ownership, Clear communication, Production backend applications, Observability, Docker, Kubernetes, PostgreSQL

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Ruby

3 years of experience, Ruby on Rails, PostgreSQL, REST APIs, Sidekiq, Scalable backend development, Debugging, Performance optimization, Clean code practices

2 years of experience, Technical document analysis, Cloud infrastructure experience, Attention to detail, Ability to interpret technical concepts, Experience reviewing engineering reports, Familiarity with technical architecture documentation

Python · Kotlin · AWS

8 years of experience, Python, Kotlin, AWS, MySQL, Spark, Kubernetes, Distributed systems, Technical strategy, KYC Verification, Identity Data Management

AffirmAffirm is a U.S.-based fintech company offering a buy now, pay later (BNPL) service that allows consumers to make purchases in installments, primarily targeting the retail sector with both B2C and B2B business models.

SQL

4 years of experience, Scala, Functional programming, Distributed backend services, SQL databases, MySQL, Kafka, Redis, Clickhouse, Mentorship, Technical initiatives

Sprout SocialSprout Social, Inc. is a Chicago-based B2B social media management platform that helps brands communicate with customers and measure their social media effectiveness.

Python · Java · SQL

2 years of experience, Java, Python, AWS, Kubernetes, MySQL, NSQ, Hbase, Object-oriented programming, Building resilient systems, Using third-party APIs, SQL/NoSQL databases

Sprout SocialSprout Social, Inc. is a Chicago-based B2B social media management platform that helps brands communicate with customers and measure their social media effectiveness.

Python · Java · SQL

4 years of experience, Java, Python, Scalable backend services, SQL, NoSQL, Mentorship, Technical architecture, Agile methodology

Sprout SocialSprout Social, Inc. is a Chicago-based B2B social media management platform that helps brands communicate with customers and measure their social media effectiveness.

SQL

7 years of experience, Scala, Distributed systems, Functional programming, Technical mentoring, SQL databases

Sprout SocialSprout Social, Inc. is a Chicago-based B2B social media management platform that helps brands communicate with customers and measure their social media effectiveness.

Python · Java · SQL

7 years of experience, Java, Python, AWS, Kubernetes, Distributed systems, Technical leadership, SQL, NoSQL, Cloud computing

Sprout SocialSprout Social, Inc. is a Chicago-based B2B social media management platform that helps brands communicate with customers and measure their social media effectiveness.

Python · Ruby

Ruby on Rails, Python, PostgreSQL, API design, AI-assisted development, Full stack background, Mentoring engineers, Driving substantial projects

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

TypeScript

TypeScript, Command-line tool development, Technical leadership, Architectural decision-making, Developer tooling design, IDE extension development

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Ruby

Go, Distributed systems, Technical project ownership, Systems design, Performance optimization, Incident response, Mentoring engineers, Ruby, gRPC, Git internals

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Deep Backend Expertise, Agentic AI Expertise, Architectural Judgment, High-throughput distributed systems, Containerized production operations, Database performance knowledge

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Go · Kubernetes

Go, Kubernetes, Kubernetes architecture, Kubernetes APIs, Cloud-native technologies, Problem-solving in distributed systems, AI inference and model training

GcoreGcore is a Luxembourg-based B2B cloud and edge computing company specializing in web performance, content delivery, and security solutions for global industries.

Linux kernel development, x86 computing architecture, Virtualization technologies, Open-source software development, Performance optimization, Low-level debugging tools, Memory management, Collaboration with open-source communities

Java · Kubernetes · Docker

5 years of experience, Java 11/17+, Spring Boot, Apache Kafka, PostgreSQL, Docker, Kubernetes, Deep JVM internals, AI tools proficiency, Distributed systems experience, Microservices architecture, Event-driven patterns

InPostInPost is a Kraków-based logistics company specializing in out-of-home delivery solutions through a network of Automated Parcel Machines, serving the e-commerce industry across Europe with both B2B and B2C services.

Go · Kubernetes

Slurm production experience, Go proficiency, Kubernetes operators experience, Diagnosing performance issues, Product mindset for Slurm, Observability with VictoriaMetrics and Grafana

GcoreGcore is a Luxembourg-based B2B cloud and edge computing company specializing in web performance, content delivery, and security solutions for global industries.

AWS · Kubernetes · Docker

5 years of experience, Distributed backend systems, Web3 platform components, AI-assisted workflows, Strong ownership mindset, Client collaboration, Fast-paced startup environment, High code quality standards, Algorithms and data structures, Containerized systems: Docker & Kubernetes, AWS

ZerionZerion is a decentralized finance (DeFi) platform and Web3 wallet that enables global crypto investors to manage, trade, and track their assets across multiple blockchain networks.

Ruby

Go, Distributed storage, Complex project ownership, Systems design, Performance optimization, Incident response, Mentoring engineers, Ruby, gRPC, Git internals

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Unreal Engine, C++, Streaming solutions, Memory system, Physics (ChaosPhysics), World building tools, AAA title experience, Multithreaded programming, System architecture, Debugging and optimization

CD PROJEKT REDCD PROJEKT RED is a Warsaw-based video game developer specializing in story-driven RPGs, including The Witcher series and Cyberpunk 2077, operating primarily in the B2C gaming industry with a global target market.

Unreal Engine, C++, Streaming solutions, Memory system, Physics (ChaosPhysics), World building tools, Multithreaded programming, System architecture, Debugging and optimization

CD PROJEKT REDCD PROJEKT RED is a Warsaw-based video game developer specializing in story-driven RPGs, including The Witcher series and Cyberpunk 2077, operating primarily in the B2C gaming industry with a global target market.

Python · AWS · Azure

FastAPI, asynchronous programming, Docker, Kubernetes, cloud providers (AWS, Azure, Google Cloud), logging and monitoring tools (ELK, Loki, Prometheus, Grafana), problem-solving skills

GcoreGcore is a Luxembourg-based B2B cloud and edge computing company specializing in web performance, content delivery, and security solutions for global industries.

Python

5 years of experience, Strong Python, AI-assisted development, Healthcare experience, Flask, SQLAlchemy, PostgreSQL, Redis

CollectlyCollectly is a San Francisco-based B2B SaaS healthcare technology company specializing in AI-driven patient billing and revenue cycle management solutions for healthcare organizations.

TypeScript · JavaScript · SQL

3 years of experience, C#, ASP.NET, MS SQL Server, T-SQL, JavaScript, Typescript, Troubleshooting tools, Git, Agile, AI tools usage

Aras CorporationAras Corporation is an Andover, Massachusetts-based B2B SaaS provider specializing in open-source product lifecycle management (PLM) solutions for engineering and manufacturing sectors, including automotive and aerospace.

RTL design, CPU architecture, Microarchitecture development, Power-saving techniques, High-speed processor design, Design verification, Synthesis and timing closure, Problem-solving skills