Senior Integration Software 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 Senior Integration Software Engineer with a programming & networking background. Your role will focus on:

• Acting as a principal system engineer, designing and architecting robust integration solutions

• 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

• Lead the full project lifecycle, from initial system analysis and design to implementation, deployment, and post-delivery support.

• Act as a principal system engineer, designing and architecting robust integration solutions that include our platform's GUI.

• Serve as a primary technical point of contact for clients, managing expectations and ensuring seamless collaboration throughout the entire project.

• Drive the implementation of complex REST API integrations (both client & server-side) with external systems, ensuring high-quality, scalable code.

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

• Define and configure platform GUI elements to display, monitor, and report on key router performance indicators (KPIs) in line with customer business needs.

• Act as a key liaison between the engineering team and business stakeholders, translating complex business requirements into technical specifications.

• Ensure comprehensive documentation and facilitate knowledge transfer to both customers and internal support teams.

• Report to the Solution Architect, providing mentorship and conducting code reviews for other Software Engineers to maintain high code quality standards.

  
  

Qualifications

• Minimum of 3+ years of professional experience in a Software Engineer or similar role, ideally with a proven track record of delivering complex, multi-system integration projects.

• Deep expertise in writing code and platform configuration during project delivery.

• Extensive experience in designing and implementing REST API integrations.

• Demonstrated ability to work directly with customers, managing project scope and technical expectations.

• Proficiency in at least one programming language (Python preferred), with a willingness to learn our in-house Scala-based functional language.

• Strong background in system engineering, including architecture and design of integrated, multi-system environments.

• Deep knowledge of networking concepts such as TCP/UDP, HTTP(S), and SNMP, and the ability to apply these in real-world integration scenarios.

• Professional experience in the telecom domain, with specific know-how of systems like ACS, NMS, OSS, or BSS.

• Fluency in English at a B2/C1 level or higher.

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:

  • 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 join the best!