> Markdown version of [/jobs/ext/1494318-go-engineer-payment-gateway-solutions](https://www.wearedevelopers.com/jobs/ext/1494318-go-engineer-payment-gateway-solutions). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Go Engineer (Payment Gateway Solutions) - **Company:** Colibrix One - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Profiling, Code Review, Continuous Integration, Distributed Systems, Fault Tolerance, PostgreSQL, Message Broker, MongoDB, MySQL, NoSQL, Payment Gateway, PCI Data Security Standards, Performance Tuning, Redis, Prometheus, Standard Sql, Systems Integration, Data Logging, Load Balancing, Data Storage Technologies, System Availability, Grafana, Caching, Gitlab, Gitlab-ci, Integration Tests, Apache Kafka, Api Design, Microservices - **Published:** July 30, 2026 - **Apply:** https://www.jobleads.com/es/job/eba817c52d6f8032deb14caefe7b6850d ## About the Role We're seeking an experienced Go Engineer to join our team and contribute significantly to our payment gateway product. The ideal candidate will bring deep technical expertise, a collaborative mindset, and the ability to influence and mentor team members through knowledge and experience rather than formal authority., * PostgreSQL/MySQL * MongoDB/Redis * Kafka * NATS * REST/gRPC * AWS * GitLab CI/CD * Prometheus * Grafana, * 3-5 years of Go development experience focused on backend systems, and around 5 years of experience working with fintech applications * Understanding of distributed systems, microservices architecture, and API design, including REST/RPC transports * Experience working with SQL and NoSQL databases, message brokers (Kafka, NATS), and caching systems * Familiarity with CI/CD practices and tools, preferably GitLab * Experience working with the AWS cloud platform * Ability to contribute expertise and collaborate with the team on technical solutions * Strong communication skills and the ability to explain complex technical ideas to colleagues with varying levels of technical background * Fluency in written and spoken English and Russian * Experience in the fintech domain * Security-by-design mindset: ability to design solutions with security considerations built in at every stage * Understanding of regulatory requirements in the fintech space (e.g., PCI DSS, GDPR) * Experience in performance optimization and building high-availability systems * Experience with observability tools: logging, metrics, tracing (Prometheus, Grafana, OpenTelemetry) * Experience integrating with external payment providers, processors, or anti-fraud systems ## Description Payment gateway solutions - fintech product that securely connects merchants and financial institutions to process online payments in real time. It handles transaction routing, encryption and tokenization, fraud and risk checks, and integration with acquirers, payment aggregators and alternative payment methods. The Payment Gateway supports high availability, scalability, and compliance with PCI DSS and PSD2., * Design and develop Go-based services for the payment gateway and related fintech systems, focusing on stability, fault tolerance, and correct handling of financial operations * Translate business requirements into clear technical specifications and propose concrete solutions at the service and module level, including API design, data models, and integrations with external providers * Build solutions in compliance with security requirements, including PCI DSS, proper handling of sensitive data, and secure inter-service communication * Analyze and optimize service performance, including code profiling, concurrency handling, and efficiency of data storage and network interactions * Participate in the architecture of microservices: service boundaries, communication patterns, load balancing, error handling, queues/streaming, and data storage approaches * Produce maintainable, testable code with appropriate unit and integration test coverage, following team development standards * Participate in code review as part of the development process: evaluate implementations, identify issues, and provide constructive feedback aligned with technical requirements * Contribute to technical discussions by offering concrete, practical solutions within the current architecture and development processes ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023)