Spoki is a Conversational Platform that helps companies build authentic relationships with their customers through WhatsApp and Artificial Intelligence. We believe in the value of genuine connections and provide tools that enable marketing, sales, and customer care teams to communicate in a direct, effective, and personal way.Our culture is built on four key principles: an unwavering passion for what we do, putting customer success first, working as a united and collaborative team, and approaching challenges with an entrepreneurial and results-driven mindset.Key Responsibilities
Design, build, and maintain scalable, high-performance APIs using
Python
and
Django .Or Contribute to backend services written in
Golang
where performance and concurrency are critical.Define and optimize
PostgreSQL
schemas, queries, and indexes for efficiency and scalability.Integrate with third-party APIs and external systems.Ensure robust authentication, authorization, and data protection mechanisms.Manage and optimize
AWS
environments (EC2, Lambda, RDS, S3, API Gateway, ECS).Its a plays if you know how to Automate deployments using
CI/CD pipelines
(GitHub Actions, or similar).You are a unicore if you know hot to apply
infrastructure-as-code
practices, like Terraform.Having a hands on expereince in Monitor, log, and troubleshoot distributed systems in production environmentsusing tools grafana, promtheus.Its a big plus if you have experience with clickhouseAI-Driven Development (Vibe Coding):Work closely with AI coding assistants to generate, refactor,



and maintain production-ready code.Focus on
architecture, orchestration, and review
rather than manual coding.Design effective prompts, validate AI-generated code, and ensure compliance with performance and security standards.Help evolve our internal
“Vibe Coding”
workflows and best practices for human–AI collaboration.Collaborate cross-functionally with other team developers, designers, and product owners.Participate in code reviews and architectural discussions.Write clean, maintainable, and well-tested code aligned with project goals.Must to Have
Experience:
3+ years in backend development with production-grade systems.Languages:
Strong proficiency in
Python, or working knowledge of
Golang .Databases:
Experience with
SQL Databases.APIs:
Proven experience designing and consuming RESTful APIs.DevOps:
Experience with
Docker and Docker ComposeTesting:
Familiarity with testing frameworks (such as PyTest, unittest).Collaboration:
Strong communication and teamwork in Agile environments.Redis
knowledge as a mustNice to Have
AI & Automation Tools:
Experience using
Cursor ,
Windsurf ,
GitHub Copilot, or other AI-assisted development tools.Prompt Engineering:




Ability to craft effective prompts for AI code generation, debugging, and optimization.Cloud-Native Mindset:
Experience with
serverless architectures
(AWS Lambda, Fargate) and
Terraform .Performance Optimization:
Understanding of data structures and algorithms, concurrency, async processing, caching, and load balancing.Security Awareness:
Knowledge of OAuth2, JWT, and best practices for secure API design.Monitoring & Logging:
Experience with
Grafana ,
Prometheus, or
AWS CloudWatch .Open Source:
Contributions or side projects showcasing backend, AI, or automation expertise.Multilingual Environment:
Comfortable working in an international, English-first team with async communication.Cloud:
Solid understanding of
AWS services
(EC2, Lambda, RDS, S3, etc.).DynamoDB is a big plusWhat we offer
Be part of building a cutting-edge Conversational Commerce platform poised for general expansion.Salary range:
€45,000 – €68,000 gross annual salary, based on experience.Work with an international, passionate, supportive, and talented team dedicated to excellence.The latest Apple MacBook and all necessary tools.Career Levels: continuous growth with clear milestones to help you design your personal and professional development path.Permanent, full-time contract (based on experience)Regular team-building events and celebrations.Access to cutting-edge technologies and resources to stay at the forefront of engineering and innovation.

📌 Senior Back End Developer (Madrid)
🏢 Spoki
📍 Madrid