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ioBuilders

Senior Golang Developer

ioBuilders
Spain · Full-time · Mid-Senior

We’re looking for a Senior Golang Developer to join a high-performing technical team working on licensable B2B products. You’ll be involved in the design, development, and evolution of solutions built on modern, scalable, and maintainable architectures.


Blockchain experience is a plus, but not a requirement.

You’ll have real impact: taking part in technical decision-making, shaping architecture, and setting engineering best practices.


🔧 What you’ll do


  • Design, develop, and maintain backend services using Golang
  • Apply Hexagonal Architecture (Ports & Adapters) and Domain-Driven Design (DDD)
  • Design and implement event-driven architectures
  • Build scalable and resilient solutions for licensable B2B software
  • Define and promote quality standards, testing, and observability
  • Review code and mentor mid-level and junior developers
  • Collaborate closely with Product, Architecture, and DevOps teams
  • Continuously improve the tech stack and development processes


✅ What we’re looking for


  • 5+ years of experience in backend development
  • Strong, hands-on experience with Golang in production
  • Solid knowledge of:

Hexagonal Architecture

Domain-Driven Design (DDD)

Event-driven systems

  • Experience designing APIs (REST, gRPC)
  • Strong testing practices (unit and integration)
  • Experience with distributed systems
  • Knowledge of relational and/or NoSQL databases
  • Experience with cloud environments and containers (Docker, Kubernetes is a plus)
  • Good backend security and performance practices


⭐ Nice to have


  • Experience with blockchain (Ethereum, Hedera, Solana, etc.)
  • Smart contracts or blockchain integration experience
  • Background in SaaS / licensable B2B products
  • Messaging & streaming platforms (Kafka, RabbitMQ, NATS, etc.)
  • CI/CD knowledge
  • High-availability environments experience


⚙️ What we offer


  • Challenging projects and a great environment.
  • Innovation and building new business with your own hands.
  • Flat organization and short decision paths.
  • Flexible working hours.
  • Remote working (Based on the team needs).
  • Remote Work Allowance.
  • We are challenge oriented.
  • Social benefits: Flexible Payment Plan, medical insurance and others.
  • 25 vacation days.
  • 2 free days for conference/courses + Budget.


We are an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religio, colour, national origin, gender, sexual orientation, age, marital status or disability.

Key Skills

Ranked by relevance

blockchain golang kubernetes rabbitmq docker devops nosql kafka cloud saas
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Posted
May 23, 2026
Type
Full-time
Level
Mid-Senior
Location
Spain
Company
ioBuilders

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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