Senior Software Engineer

36.63 - 47.90 USDNet per hour - B2B
Java

Senior Software Engineer

Java
-, Poznań +9 Locations

Link Group

Full-time
B2B
Senior
Remote
36.63 - 47.90 USD
Net per hour - B2B

Job description

Senior Software Engineer (Kotlin / AI Integration / Large-Scale Systems)


We are looking for a highly experienced Senior Software Engineer to join a large-scale product ecosystem operating in a complex, distributed environment.

This role is designed for a strong Individual Contributor who thrives on solving high-complexity problems, influencing architecture, and delivering scalable, production-grade solutions. You will work at the intersection of modern backend engineering and AI-driven capabilities, helping evolve systems that operate at significant scale.

The ideal candidate combines deep Kotlin expertise with curiosity and practical interest in AI-powered solutions — particularly LLM integrations and agentic frameworks — and understands how to translate technical decisions into real user impact.


What You’ll Be Responsible For

  • Designing and delivering high-complexity features and system components

  • Driving architectural decisions and evaluating technical trade-offs

  • Ensuring quality, scalability, reliability, and observability of delivered solutions

  • Taking end-to-end ownership of implementation, from concept to production

  • Identifying and managing technical risks, dependencies, and technical debt

  • Integrating AI-driven capabilities (LLMs, agentic systems) into production workflows

  • Collaborating closely with Engineers, Product Managers, and Designers

  • Evaluating technical decisions based on measurable user impact

  • Operating with high autonomy and accountability in a mature engineering environment


Must Have

  • Proven experience as a Senior Software Engineer delivering complex, high-scale solutions

  • Deep hands-on experience with Kotlin

  • Basic commercial experience and strong interest in AI-driven solutions, especially LLM integration and Agentic Systems/Frameworks

  • Strong architectural mindset and ability to drive system design

  • Experience managing scalability, performance, stability, and observability

  • Ability to identify technical debt and proactively address system risks

  • Strong collaboration and communication skills

  • High level of ownership and autonomy


Nice to Have

  • Experience with Cloud environments (GCP preferred) and Kubernetes

  • Experience working with large-scale distributed systems

  • Cross-team collaboration in complex organizational structures

  • Providing technical consultancy and knowledge sharing within teams

  • Advising on engineering standards and continuous optimization of development practices

Tech stack

    Java

    advanced

    Kotlin

    advanced

    AI

    advanced

    LLM

    advanced

    Kubernetes

    nice to have

Office location

Published: 12.02.2026

Senior Software Engineer

36.63 - 47.90 USDNet per hour - B2B
Summary of the offer

Senior Software Engineer

-, Poznań
Link Group
36.63 - 47.90 USDNet per hour - B2B
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