June 8, 2026

Integration Software Engineer

Mid • Hybrid

7,000 - 11,000 PLN

Krakow, Poland

Integration Software Engineer

At AVSystem, we are a Polish-based company behind a telco industry-leadingUnified Management Platform (UMP) product allowing Communication Service Providers automatic setup, upgrades, and monitoring of millions of their client routers.

We are seeking a dedicated Integration Software Engineer with a programming & networking background. Your role will focus on:

  • Writing code & configuring our platform to customize it to our customers’ needs

  • Cooperating directly with our customers during delivery and post-delivery support.

This role is onsite / partially remote, Kraków preferred.

Key Responsibilities:

  • Writing code and platform configuration during project delivery

  • Write project-specific code in our platform GUI to facilitate router configuration

  • Implement REST APIs (servers & clients) integrations with external systems

  • Configure our platform GUI to display, monitor and report on router KPIs

  • Report to Solution Architect and work with Software Engineers (code reviews)

  • Post-delivery technical support

    • Support integrations you've implemented, work with 1st & 2nd lines of support teams to diagnose, troubleshoot, and resolve issues effectively and promptly

    • Ensure documentation & knowledge transfer to customer & support teams

    • Customer accounting - work hands-on with customers via support portal, mails, calls

Qualifications:

  • Fluency in programming is a must

    • Bachelor’s degree in Information and Communication Technology (preferred) or Software Engineering / IT / Electronics and Telecommunications

    • Proficient in at least one programming language (Python preferred)

    • Willing to learn in-house Scala-based functional language

    • Experience in writing REST API integrations (both client & server-side)

  • Familiarity with networking concepts: firewalls, IP, WLAN, TCP/UDP, HTTP(S), SNMP

  • Basic Linux system administration skills such as gathering logs, executing scripts, familiarity with CLI tooling (curl, ssh, ss, tcpdump, traceroute, ping)

  • Fluent in English (B2/C1)

Personality:

  • You’re a rapid learner, analytical, and detail-oriented, excelling in solving complex problems independently within evolving requirements

  • You are comfortable and effective in communicating directly with customers, adept at listening and clarifying their needs and expectations

  • You’re capable of managing deadline pressures & context-switching to progress on multiple projects during a week

Nice to haves:

  • Professional experience in Software Engineer role

  • Experience in network-related role with integrated multi-system environments

  • Past positions in telecom domain (ACS, NMS, OSS, BSS know-how)

What we offer:

  • You’ll have a chance to deepen your expertise in maintenance to help us shape the way we deliver & support critical applications for telecommunications companies

  • You’ll help us grow a leading technology IoT / device management company that creates software used by tier-1 telcos (e.g. Orange, Vodafone, AT&T, TMobile) around the world and makes Internet connection possible for millions of end-users.

  • Our customers depend on the reliability of our products to generate revenue in their business. The telco industry is ever-growing and needs us to support that growth.

  • Open-source contribution opportunities.

  • A team of highly skilled and humorous colleagues.

  • Access to the best tools and equipment available in the market.

  • A MacBook Pro / ThinkPad with 2 monitors.

  • Company events and team building activities.

  • Multiple career paths and employee development options – we want you to develop into a tech lead in the future, but we’ll support you in getting another dream role in site reliability, management, product development or sales.

  • Flexible working hours/remote work when you need it.

  • Training and conferences.

  • Onsite gym and chillout space.

  • Multisport card.

  • Medical care.

  • Kitchen full of snacks and treats (including Good Lood ice cream).

  • Car parking area and bike room.

  • A relaxed work atmosphere – no dress code, no open space.

Come and work with the best!

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Hybrid

Warsaw, Poland

🏢 Summary: Mid Backend Software Engineer role focused on designing, implementing, and maintaining embedded Linux software for IoT networking devices and developing internal API frameworks. The position involves working on industrial networking solutions and collaborating with R&D teams to implement new technologies. The offer targets engineers experienced in C programming and Linux-based systems. 🗂️ Requirements: 2+ years of experience in C programming, 2+ years of experience working with APIs, 2+ years of experience in Shell or Python scripting, Knowledge of Git version control, Knowledge of Linux-based systems, Ability to design and maintain embedded Linux software, Ability to develop and maintain API frameworks, English proficiency (written and spoken) 📃 Skills: C, Linux, Embedded, API, Shell, Python, Git, IoT, Networking, Lua, OpenWrt, Cybersecurity 🏢 Description: We are looking for a Mid Backend Software Engineer to our developers' team in Warsaw, Poland. You will work with the leading networking solutions in the world and master your skills. Teltonika’s networking solutions business unit develops and manufactures industrial and enterprise connectivity equipment, primarily routers, switches, gateways, and modems. Our networking devices serve clients in the most complex areas of Industry 4.0, Smart City, and Green Energy. For more details please refer to the company site: In this role, you will: Design, implement, maintain embedded Linux software of IoT devices Develop and maintain our own API framework that is being used by other R&D teams Analyse and implement new technologies Collaborate with team and solve complex problems What we expect of you: 2+ years of experience in C programming 2+ years of experience working with various API's 2+ years of experience in Shell/Python scripting Knowledge of Git version control system Knowledge of Linux based systems Good written and verbal English skills Ideally, you’ll also have: Technical education Experience in working with IoT devices Knowledge of computer networking Knowledge of cybersecurity Experience in Lua programming Experience of working with OpenWrt What we offer: Great opportunities to grow in a strong and rapidly expanding company Interesting and ambitious projects of industrial networking devices Private medical care (Medicover Premium) and Multisport card Hybrid working model, with arrangements agreed in advance with the line manager Additional day off for your birthday Team building activities

Technology

Cyclad

Integration Engineer (Azure | Kubernetes | DevOps)

Senior

Remote

Warsaw, Poland

100 - 111 PLN/hr

🏢 Summary: Offer for an experienced Integration Engineer to design, implement, and maintain cloud-native integration solutions within a global DevOps team. The role covers full lifecycle delivery of scalable data flows and system integrations in Azure and Kubernetes environments. Work involves workflow orchestration, messaging technologies, and architectural advisory in a fully remote model. 🗂️ Requirements: Experience with Kubernetes and cloud-native architecture, Strong knowledge of Microsoft Azure integration services, Experience with workflow orchestration tools, Knowledge of DAG-based integration patterns, Hands-on experience with messaging technologies, Very good knowledge of Python, Experience with DevOps practices including CI/CD and IaC 📃 Skills: Kubernetes, AKS, Azure, Kafka, Python, Airflow, Argo, Temporal, DAG, DevOps, CICD, IaC, GitOps, Monitoring, EventHub, ServiceBus 🏢 Description: W Cyclad współpracujemy z czołowymi międzynarodowymi firmami IT, wspierając je w dostarczaniu nowoczesnych, przełomowych technologii, które kształtują świat przyszłości. Obecnie dla naszego klienta poszukujemy doświadczonego Integration Engineera, który dołączy do międzynarodowego zespołu Global Integration Hub działającego w modelu DevOps, gdzie odpowiedzialność obejmuje pełen cykl życia rozwiązań – od projektowania, przez wdrożenie, po utrzymanie. Na tym stanowisku będziesz odpowiedzialny/a za projektowanie i rozwój rozwiązań integracyjnych, które łączą systemy, aplikacje oraz przepływy danych w skali całej organizacji. Informacje o projekcie: Budżet: do 111 PLN netto/h (B2B) Model pracy: 100% zdalnie (Polska) Forma zatrudnienia: kontrakt B2B lub umowa o pracę (UoP) Zakres obowiązków Projektowanie, budowa i utrzymanie rozwiązań integracyjnych w środowisku Azure i Kubernetes Tworzenie oraz orkiestracja workflow w oparciu o wzorce DAG (np. Argo Workflows, Airflow, Temporal) Projektowanie przepływów danych i procesów (zarówno w czasie rzeczywistym, jak i wsadowych) Wykorzystanie technologii messagingowych (np. Kafka, Azure Service Bus, Event Hub) Współpraca z zespołami technicznymi oraz interesariuszami biznesowymi Przekładanie wymagań biznesowych na skalowalne rozwiązania techniczne Doradztwo w zakresie architektury integracyjnej oraz dobrych praktyk Praca w środowisku DevOps (CI/CD, Infrastructure as Code, automatyzacja) Wymagania Doświadczenie w pracy z Kubernetes (preferowany AKS ) oraz architekturą cloud-native Dobra znajomość platformy Microsoft Azure , szczególnie w obszarze integracji i messagingu Doświadczenie z narzędziami do orkiestracji workflow (np. Argo Workflows, Airflow, Temporal ) Znajomość wzorców integracyjnych opartych na DAG Praktyczne doświadczenie z technologiami messagingowymi (Kafka, Service Bus, Event Hub lub podobne) Bardzo dobra znajomość języka Python Znajomość praktyk DevOps (CI/CD, IaC, monitoring, GitOps) Oferujemy: Prywatna opieka medyczna wraz z opieką stomatologiczną (pokrycie 70% kosztów), z możliwością rozszerzenia na pakiet rodzinny Karta Multisport (również dla osoby towarzyszącej) Ubezpieczenie na życie Możliwość pracy w 100% zdalnej z terenu Polski Udział w projektach opartych o nowoczesne technologie chmurowe Realny wpływ na rozwiązania techniczne i architekturę Pracę w międzynarodowym środowisku Agile/Scrum Możliwości rozwoju w obszarze integracji systemów i architektury

Technology

KUBO

Software Engineer - Cloud Services & Backend Modernization

Mid

Hybrid

Gdansk, Poland

150 - 190 PLN/hr

🏢 Summary: The offer is for a Software Engineer to modernize and develop cloud-hosted backend services for a mission-critical aviation platform used globally. The role focuses on building scalable, resilient, cloud-native solutions in AWS, improving automation, CI/CD, and Kubernetes-based environments. You will contribute to transforming a legacy system into a modern, secure, and highly scalable ecosystem. 🗂️ Requirements: Experience developing backend applications in cloud environments, Hands-on experience with Linux, Docker, Apache, PHP, Strong knowledge of AWS and cloud-native architectures, Experience with Kubernetes and containerized workloads, Experience with CI/CD and Infrastructure as Code, Knowledge of cloud security and monitoring practices, Ability to troubleshoot production systems, English B2 level or higher 📃 Skills: AWS, Linux, Docker, Apache, PHP, Kubernetes, CI/CD, IaC, SQL, MySQL, SQLServer, AI 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Hands-on experience with Linux, Docker, Apache, and PHP or Java Strong knowledge of AWS and cloud-native architectures Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a week in the office in Gdańsk or less frequently, depending on your availability Salary: up to 190 PLN net/h Benefits: life insurance, private healthcare, Multisport card Recruitment steps Recruitment call with Agnieszka from KUBO Client interview (may require 2 rounds) Feedback and decision

Technology

KUBO

Software Engineer - Cloud Services & Backend Modernization

Mid

Hybrid

Gdansk, Poland

150 - 190 PLN/hr

🏢 Summary: Opportunity to modernize a mission-critical aviation platform by designing and developing cloud-hosted backend services in a scalable, cloud-native AWS environment. The role focuses on building resilient APIs, improving automation and CI/CD pipelines, and managing Kubernetes-based infrastructure to support global aviation data distribution. You will contribute to a large-scale modernization initiative emphasizing scalability, security, and operational excellence. 🗂️ Requirements: Experience developing backend applications in cloud environments, Hands-on experience with Linux, Docker, Apache, and PHP or Java, Strong knowledge of AWS and cloud-native architectures, Experience with Kubernetes and containerized workloads, Experience with CI/CD and Infrastructure as Code, Understanding of cloud security, monitoring, and production support practices, Strong troubleshooting and problem-solving skills, English proficiency at minimum B2 level 📃 Skills: AWS, Linux, Docker, Apache, PHP, Java, Kubernetes, CI/CD, IaC, SQL, SQLServer, MySQL, AI 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Hands-on experience with Linux, Docker, Apache, and PHP or Java Strong knowledge of AWS and cloud-native architectures Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a week in the office in Gdańsk or less frequently, depending on your availability Salary: up to 190 PLN net/h Benefits: life insurance, private healthcare, Multisport card Recruitment steps Recruitment call with Agnieszka from KUBO Client interview (may require 2 rounds) Feedback and decision