instinctools** is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements.
instinctools is looking for a Senior Golang Developer for one of our clients.
Location: EU, Poland, Kazakhstan, Serbia, Georgia
Client: is a global mobility and urban services platform that allows users to book rides or other services and negotiate the fare directly with the service provider. It offers a variety of services including ride-hailing, intercity travel, delivery, and task assistance, operating in over 700 cities across 47 countries and is the second most downloaded mobility app in the world.
Duration of cooperation: 4-6+ months
Responsibilities and tasks:
- Design, develop, and maintain backend services using Golang, delivering scalable, high-performance, and reliable solutions
- Design optimal database structures (SQL), manage indexes, and optimize query performance
- Build and maintain asynchronous communication between services (e.g., Kafka)
- Take end-to-end ownership of backend services, including development, deployment, monitoring, and production support
- Set up observability for services (metrics, logging, alerts), respond to production incidents, conduct root cause analysis, and participate in post-mortem processes
- Write clean, maintainable, and well-structured code; perform code reviews and follow architectural guidelines and engineering best practices
- Collaborate with cross-functional teams during planning and refinement sessions, validate requirements, and contribute to defining technical solutions
- Proactively identify and implement improvements in system design, performance, and user experience
Our expectations of the ideal candidate:
- 7+ years of commercial backend engineering experience, including solving complex problems in high-load environments
- 5+ years of hands-on experience with Golang, including practical use of advanced features in production systems (generics, reflection, unsafe, custom synchronization primitives)
- Strong SQL expertise, including schema design, scaling strategies (replication, partitioning, sharding), and query optimization for high-load environments
- Deep understanding of Redis, including effective use of data structures and performance optimization in high-load systems
- Experience with Docker and CI/CD pipelines; knowledge of Kubernetes (or similar orchestration tools) and cloud platforms (e.g., AWS)
- Solid experience with synchronous and asynchronous inter-service communication patterns, with a focus on reliability and fault tolerance
- Strong understanding of microservice architecture patterns and the ability to design efficient client-server interactions while accounting for system limitations
- Experience in product-led environments and a proven track record of building and scaling high-load distributed systems
- Proven ability to design and implement observability solutions, including metrics, logging, dashboards, and distributed tracing
- Ability to write maintainable, testable code with solid unit/integration test coverage
Nice to have:
- Experience with event-driven architectures (Kafka, NATS, RabbitMQ)
- Familiarity with IaC tools (Terraform, Pulumi)
- Experience with performance profiling/optimisation of Go services (pprof, trace)
- Familiarity with design handoff tools (Figma) and cross-platform collaboration
- Experience using AI-assisted dev tools (GitHub Copilot, ChatGPT, Claude) to speed up coding/testing/code review
English: Intermediate
Soft skills:
- Highly proactive – ability to figure out who to reach out to and how to get things done independently
- Stakeholder management – comfortable interacting with various stakeholders, from senior developers to product managers
- Curious mindset – challenges existing processes and looks for continuous improvement
- Strong communication – able to have project-related conversations with product managers and other team members
- Time management – organized and reliable
We offer:
- flexible working time
- professional and ambitious team
- learning opportunities, seminars and conferences and time for exploring new technologies
- co-funding for language courses (English)
