Senior Go Developer

Bonapolia; Warszawa; Remote; PLN 180,000 - 300,000; Full time

Job summary

Bonapolia is looking for a Senior Go Developer to join a data-collection platform spanning worker applications, back office, and backend services for a global mobility and urban services project.

You will work with Go, SQL, Redis, Docker, Kubernetes and AWS to design microservices, enable observability, handle multi-country campaigns and data workflows. Start ASAP; preliminary 3 months with potential extension; CET time zone, Poland-based/remote.

Qualifications

• 5+ years of commercial backend engineering experience in high-load environments.
• Advanced Go expertise.
• Strong SQL skills: schema design, replication, partitioning, sharding, and query optimisation.
• In-depth Redis knowledge and efficient use in high-load systems.
• Docker, CI/CD, Kubernetes or equivalents, and cloud infrastructure such as AWS.
• Synchronous and asynchronous inter-service communication patterns.
• Microservice architecture, client-server interaction design, and observability: metrics, logging, dashboards, and tracing.

Responsibilities

• Develop backend services for orders, multi-country campaigns, task templates, and pull-based task queues.
• Build submission workflows for media uploads, metadata, versioned storage, and audit trails.
• Implement automated quality control, duplicate detection, consensus workflows, and review flows.
• Develop payment, consent, data retention, and record-erasure functionality.
• Build dataset export capabilities and integrations with consumer applications, CRM, payout, and LLM providers.

Skills

Go

SQL

Redis

CI/CD

Observability

Microservices

Cloud AWS

Tools

Docker

Kubernetes

AWS

Job description

We are looking for a Senior Go Developer:

Language Proficiency: Intermediate

Employment type: Full time

Candidate Location: Poland, Kazakhstan, Serbia, Armenia, Georgia

Working Time Zone: CET

Start: ASAP

Planned Work Duration: Preliminary 3 months with potential for extension

Customer Description:

The customer is a global mobility and urban services platform offering ride-hailing, intercity travel, delivery, and task assistance services.

Project Description:

A data-collection platform spanning a worker application, back office, and backend services.

Project Phase:

Ongoing

Soft Skills:

• Strong interest in emerging technologies and continuous professional development.
• Collaborative mindset and ability to work effectively within a team.

Hard Skills / Must Have:

• 5+ years of commercial backend engineering experience in high-load environments.
• Advanced Go expertise.
• Strong SQL skills: schema design, replication, partitioning, sharding, and query optimisation.
• In-depth Redis knowledge and efficient use in high-load systems.
• Docker, CI/CD, Kubernetes or equivalents, and cloud infrastructure such as AWS.
• Synchronous and asynchronous inter-service communication patterns.
• Microservice architecture, client-server interaction design, and observability: metrics, logging, dashboards, and tracing.

Hard Skills / Nice to Have (Optional):

• Experience with LLM-based quality checks and event-driven architectures.

Responsibilities:

• Develop backend services for orders, multi-country campaigns, task templates, and pull-based task queues.
• Build submission workflows for media uploads, metadata, versioned storage, and audit trails.
• Implement automated quality control, duplicate detection, consensus workflows, and review flows.
• Develop payment, consent, data retention, and record-erasure functionality.
• Build dataset export capabilities and integrations with consumer applications, CRM, payout, and LLM providers.

Technology Stack:

Go, SQL, AWS

Interview stages:

• English check (15 minutes)
• internal technical interview (1-1,5 hour)
• client interview – (1 hour)
• client interview – cultural fit (45 minutes)

What we offer

• Model: B2B contract with Bonapolia - one contract, one monthly invoice
• Rate: negotiated per candidate seniority and client budget
• Payment: monthly invoice, paid on the same schedule the client pays us (usually 30 days)
• Contract written under your country's law
• We handle the client-side paperwork: MSA, NDA, invoicing

About Bonapolia

Bonapolia is a family-owned IT staff augmentation team based in Lisbon. We build engineering teams for product companies and IT consultancies across Europe and the US.

More at bonapolia.com