Golang Engineer – Senior

SOFTSWISS; Warszawa; On-site; PLN 70,000 - 90,000; Full time

Benefits offered by this job

Private health insurance

Sports benefits

Comprehensive Mental Health Program

Free English lessons

Local language courses

Paid time off

Maternity leave support

Referral program rewards

Upskilling workshops

Job summary

SOFTSWISS is expanding and seeking a Senior Go Developer in Warsaw, Poland. The role involves designing and building scalable backend systems in Go, focusing on architecture and code quality. The ideal candidate will have over 7 years of software development experience, with a solid understanding of Go internals and experience in betting-related products.

Benefits include private health insurance, sports benefits, and upskilling opportunities, such as workshops and language courses.

Qualifications

• 7+ years of professional software development experience.
• At least 4 years of recent programming experience with Go as the primary language.
• Hands-on experience with betting-related products is a must.
• Strong understanding of Go internals: data structures, multithreading, memory management.
• Experience with relational databases including complex SQL queries.

Responsibilities

• Design and build scalable backend solutions in Go for a high-load system.
• Collaborate within a team using the Scrum methodology.
• Engage in architectural strategy decision-making.
• Conduct code reviews and document your code.

Skills

Go programming

Software development

Relational databases

Containerization (Docker)

Kafka

Kubernetes

English

Russian

Tools

PostgreSQL

Clickhouse

Job description

Overview:

SOFTSWISS continues to expand the team and is looking for a Senior Go Developer. We need a true, experienced and accomplished professional who shares our culture and values.

About Product:

Example:

SOFTSWISS Sportsbook
The SOFTSWISS Sportsbook is a software platform designed for launching and managing a successful online sports betting business. The Sportsbook team’s goal is to develop truly innovative software that will make the process of creating and running a bookmaker website faster and easier for our clients. We are searching for driven individuals who are passionate about what they do and are ready to work on engaging tasks and exciting projects together.

Purpose of the role:

You’ll design and build scalable backend solutions in Go, helping to shape the architecture of a high-load, business-critical system.

You’ll collaborate closely with the team, contribute to strategic technical decisions, and ensure code quality through thoughtful reviews and clean, testable implementation.

Your deep understanding of system internals, distributed architecture, and data integrity will drive reliability, performance, and long-term maintainability.

Key Responsibilities:

• Collaborating within a team using the Scrum methodology and participating in planning your own workflow
• Engaging in architectural, infrastructure, and other strategic decision-making processes
• Conducting code reviews for other team members and documenting your own code

Required Experience:

• 7+ years of professional software development experience
• At least 4 years of recent programming experience with Go as the primary language
• Hands‑on experience with betting‑related products is a must
• Strong understanding of Go internals: data structures, multithreading, memory management, garbage collection, etc.
• Experience with relational databases, including the ability to write and optimize complex SQL queries
• Solid knowledge of Linux and an understanding of containerization (we use Docker)
• Ability to write testable code and corresponding unit tests
• Experience working with Kafka and Kubernetes
• English - Intermediate
• Russian - Upper-Intermediate

Nice to have:

• Experience in developing applications in finance or other fields where data integrity is a key requirement
• Understanding the principles of distributed applications and microservice architecture
• Familiarity with one or more modern approaches to back-end application design (e.g., DDD, Clean Architecture, Hexagonal Architecture)
• Experience with PostgreSQL and Clickhouse

Our Benefits:

• Private health insurance
• Sports benefits
• Comprehensive Mental Health Program
• Free English lessons (online)
• Local language courses
• Paid time off
• Maternity leave support
• Referral program rewards
• Upskilling, internal workshops, and participation in professional conferences and corporate events