Backend & Integration Engineer

At AVSystem, we are a Polish-based company behind a telco industry-leading Unified Management Platform (UMP) product allowing Communication Service Providers automatic setup, upgrades, and monitoring of millions of their client routers. We are seeking a dedicated Backend & Integration Engineer with a programming and 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 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) • Professional experience in Software Engineer role • 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 have] Experience in network-related role with integrated multi-system environments • [Nice to have] 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 • Some usual stuff: • Kitchen full of snacks and treats (including Good Lood ice cream) • Car parking area and bike room • Multisport card, medical care • Relaxed work atmosphere – no dress code, no open space Flexible working hours/hybrid work from our Kraków office Come join the best!