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’ needsCooperating directly with our customers during delivery and post-delivery supportKey Responsibilities:Writing code and platform configuration during project deliveryWrite project-specific code in our platform GUI to facilitate router configurationImplement REST APIs (servers & clients) integrations with external systemsConfigure our platform GUI to display, monitor and report on router KPIsReport to Solution Architect and work with Software Engineers (code reviews)Post-delivery technical supportSupport integrations you've implemented, work with 1st & 2nd lines of support teams to diagnose, troubleshoot, and resolve issues effectively and promptlyEnsure documentation & knowledge transfer to customer & support teamsCustomer accounting - work hands-on with customers via support portal, mails, callsQualifications:Fluency in programming is a mustBachelor’s degree in Information and Communication Technology (preferred) or Software Engineering / IT / Electronics and TelecommunicationsProficient in at least one programming language (Python preferred)Willing to learn in-house Scala-based functional languageExperience in writing REST API integrations (both client & server-side)Familiarity with networking concepts: firewalls, IP, WLAN, TCP/UDP, HTTP(S), SNMPBasic 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 roleFluent in English (B2/C1)Personality:You’re a rapid learner, analytical, and detail-oriented, excelling in solving complex problems independently within evolving requirementsYou are comfortable and effective in communicating directly with customers, adept at listening and clarifying their needs and expectationsYou’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 companiesYou’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-usersSome usual stuff: Kitchen full of snacks and treats (including Good Lood ice cream)Car parking area and bike roomMultisport card, medical careRelaxed work atmosphere – no dress code, no open spaceCome join the best!