Expert Go Engineer

Ciklum; Polska; Hybrid; PLN 120,000 - 180,000; Full time

Job summary

A custom product engineering company in Poland is looking for an Expert Go Engineer to join their team. You will work on complex backend systems as part of a leading cybersecurity initiative, driving architecture for scalable and reliable services. The ideal candidate has over 4 years of experience in backend development and strong knowledge of Go. This role offers a hybrid model with comprehensive support and professional growth opportunities in a collaborative environment.

Benefits

Company-paid medical insurance

Mental health support

Financial & legal consultations

Tailored learning opportunities

Flexible work arrangements

Qualifications

• 4+ years of experience developing backend systems.
• Strong knowledge and proficiency with Go programming language.
• Extensive experience with large-scale databases like PostgreSQL and Neo4j.
• Familiarity with microservices architecture and cloud design patterns.
• Broad knowledge of container ecosystem and orchestration tools.

Responsibilities

• Design and lead complex backend systems in Go.
• Drive architecture for scalable, concurrent, distributed services.
• Build reliable services running on Kubernetes-based infrastructure.
• Mentor engineers and influence long-term technical direction.

Skills

Go programming language

Backend system development

Large-scale databases (PostgreSQL, Neo4j)

Microservices architecture

Cloud design patterns

Container ecosystem (Docker, Kubernetes)

AWS cloud services

REST API

gRPC

Message brokers (Kafka/NATS)

Cybersecurity

Linux

Networking

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.