Back-End Developer (Go) - Krakow

Ubiquiti Inc.; Kraków; Hybrid; PLN 246,000 - 312,000; Full time

Benefits offered by this job

Hybrid office in Kraków

Private medical insurance

Flexible work hours

Competitive salary package

Job summary

Ubiquiti Inc. in Kraków is seeking an experienced Backend Engineer with 5+ years of Go expertise to design and implement robust RESTful APIs for embedded and cloud platforms.

You will work across hardware and software teams to optimize data storage with relational databases and apply AI development techniques to scale services. Fluent English is required; hybrid Kraków office availability.

Qualifications

• 5+ years in Go in a production environment.
• 5+ years of experience with relational databases (PostgreSQL or MySQL).
• Proven expertise in designing and developing RESTful APIs.
• Strong analytical and problem-solving skills; proactive mindset.
• Proficiency in AI development environments and techniques; English fluency.

Responsibilities

• Design and implement robust, scalable RESTful APIs for embedded and backend platforms.
• Develop applications on embedded platforms and integrate with hardware and network systems.
• Architect and document backend systems focusing on performance and maintainability.
• Perform network programming and system-level integration across subsystems.
• Collaborate with Frontend, UX and QA to ensure cohesive product development.
• Ensure high-quality deliverables and meet project timelines.

Skills

Go (Golang) back-end

Relational databases (PostgreSQL/MySQL

RESTful APIs design

AI development environments

English fluency

Job description

About Ubiquiti

At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity.

Responsibilities

• Design and implement robust, scalable, and secure RESTful APIs;
• Develop applications on embedded platforms, integrating closely with hardware and network systems;
• Architect and document backend software systems with a focus on performance, maintainability, and scalability;
• Perform network programming and system-level integration across multiple subsystems;
• Collaborate with cross-functional teams including Frontend Engineering, UX Design, and QA to ensure cohesive product development;
• Ensure high-quality deliverables and meet project timelines consistently;
• Participate in code reviews and actively share knowledge to foster a culture of continuous improvement.

Requirements

• 5+ years of experience with Golang in a production environment;
• 5+ years of experience working with relational databases (RDBMS) such as PostgreSQL or MySQL;
• Demonstrated expertise in designing and developing RESTful APIs;
• Strong analytical and problem-solving skills, with a proactive and adaptable mindset;
• Proficiency in AI development environments (e.g., Cursor, Claude Code) and expertise in AI development techniques, such as Spec-Driven Development, are required;
• Fluent in English.

Nice To Have

• Experience developing or maintaining IoT platforms or connected device ecosystems;
• Knowledge of IoT protocols such as MQTT, CoAP, or WebSockets for efficient communication;
• Familiarity with Matter and Thread protocols, including their architecture, security, and implementation considerations;
• Understanding of device provisioning, firmware over-the-air (OTA) updates, and device lifecycle management;
• Exposure to edge computing paradigms and cloud-to-device integration patterns;
• Proficiency in asynchronous programming and event-driven systems;
• Experience with telemetry data collection, real-time data processing, and time-series data stores;
• Working knowledge of IoT security best practices, including authentication, encryption, and secure communication;
• Familiar with Debian/Ubuntu, Linux application/service development, and CLI environment;
• Familiar with Linux networking stack, routing, packet analysis (tcpdump/Wireshark), and firewall management.

Benefits

• International work environment and work with global development teams;
• Ability to deliver software that is used by millions of people across the globe;
• Opportunity to leverage and integrate modern AI tools into product development;
• Access to all Ubiquiti products;
• Private Medical insurance (UoP only);
• Hybrid approach - office in Krakow;
• Flexible work hours;
• Compensation package matching global standards, including competitive salary depending on your qualification and background;
• UoP: 22,000–28,000 PLN gross monthly;
• B2B: $6,000–$8,500 USD gross monthly;
• A-class office with all the necessities - snacks, drinks, free parking, etc!