Expert Go Engineer

Description Ciklum; Remote; PLN 120,000 - 180,000; Full time

Job summary

A custom product engineering company is seeking an Expert Go Engineer to join its talented team in Poland. The ideal candidate will lead the design of complex backend systems for a cybersecurity platform serving Fortune 100 companies, ensuring high standards of code quality and system performance. The role offers opportunities for professional growth, flexibility with remote work options, and support in continuous learning. Join a collaborative environment and contribute to impactful solutions in a rapidly evolving market.

Benefits

Company-paid medical insurance

Mental health support

Financial & legal consultations

Access to internal events and workshops

Flexibility for remote work

Qualifications

• 4+ years of experience developing backend systems.
• Strong knowledge and proficiency with Go programming language.
• Extensive experience with large-scale databases (PostgreSQL, Neo4j).
• Familiarity with microservices architecture and cloud design patterns.
• Background in cybersecurity, Linux, and networking.

Responsibilities

• Design and lead complex backend systems in Go.
• Drive architecture for scalable, concurrent, distributed services.
• Build scalable, reliable services running on Kubernetes-based infrastructure.

Skills

Go programming language

Backend systems development

PostgreSQL

Microservices architecture

AWS cloud services

REST API

Kafka/NATS

Docker

Kubernetes

Job description

Ciklum is looking for a Expert Go Engineer to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Expert Go Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.

Our Client is a cybersecurity company that secures private cellular (solo) networks used by large enterprises, including Fortune 100 companies. Its platform provides purpose-built security and operational visibility for isolated cellular networks that traditional security solutions cannot protect.

Join our talented R&D team to create groundbreaking products in a rapidly growing market. You'll collaborate closely with the Client’s product team to develop and implement innovative features from conception to deployment. As a key contributor, you'll build and maintain our core product offering, ensuring scalability, performance, and stability.

Responsibilities:

• Design and lead complex backend systems in Go as part of a large-scale cybersecurity product
• Drive architecture for scalable, concurrent, distributed services
• Work on an event-driven backend architecture, leveraging message brokers (e.g. Kafka / NATS)
• Implement and optimise Go concurrency mechanisms (goroutines, channels, synchronisation primitives)
• Build scalable, reliable services running on Kubernetes-based infrastructure
• Own code quality end-to-end: design, implementation, testing, and production readiness
• Collaborate within a cross-functional squad (backend, frontend, QA, DevOps as enablers)
• Mentor engineers and influence long-term technical direction
• Follow and help shape engineering standards and best practices
• Participate in technical discussions, reviews, and architectural decisions within the team

Requirements:

• 4+ years of experience developing backend systems
• Strong knowledge, experience, and proficiency with Go programming language
• Extensive experience with large-scale databases (PostgreSQL, Neo4j)
• Familiarity with microservices architecture and cloud design patterns
• Broad knowledge of container ecosystem and orchestration tools (Docker, Kubernetes)
• Experience with AWS cloud services
• Proficiency in REST API, gRPC, message brokers (Kafka/NATS), and server-side API integration
• Background in cybersecurity, Linux, and networking

What`s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands‑on experience with cutting‑edge technologies
• Flexibility: Enjoy flexibility – full remote working possibilities
• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.