Senior Golang Engineer / Backend Engineer

We are seeking highly skilled Golang Engineers to join a fast-paced engineering team responsible for building and enhancing next-generation banking and payment platforms. The successful candidate will play a critical role in designing, developing, and operating scalable backend services supporting high-volume, mission-critical financial transactions. You will work within a modern cloud-native environment, building resilient microservices and event-driven systems that support secure, real-time transaction processing across a complex banking ecosystem. The role requires strong engineering fundamentals, deep Golang expertise, and experience operating distributed systems at scale. Working closely with Architects, Product Owners, SRE, DevOps, and Platform Engineering teams, you will contribute to the end-to-end software development lifecycle while ensuring solutions meet the highest standards of performance, security, resilience, and observability. Key Responsibilities Software Engineering Design, develop, and maintain robust backend services using Golang. Build highly scalable APIs and microservices supporting banking and payment capabilities. Develop reusable libraries, frameworks, and engineering standards. Participate in system architecture and technical design discussions. Ensure code quality through automated testing, code reviews, and engineering best practices. Troubleshoot and resolve complex production issues. Distributed Systems & Scalability Design and implement distributed systems capable of processing high-throughput financial transactions. Optimise system performance, latency, availability, and fault tolerance. Implement resilience patterns including: Circuit breakers Retry mechanisms Dead-letter queues Bulkheads Rate limiting Support multi-service platform architectures operating at scale. Event-Driven Architecture Design and implement event-driven solutions leveraging: Apache Kafka RabbitMQ Streaming architectures Asynchronous processing patterns Develop event producers and consumers supporting business-critical workflows. Ensure reliable event delivery, replay strategies, and idempotent processing. Cloud & Container Platforms Build and operate services running within Kubernetes environments. Develop and maintain Docker containers. Contribute to deployment automation and CI/CD pipelines. Collaborate with Platform and SRE teams on scalability, security, and operational excellence. Data Engineering & Persistence Design and optimise data models for both relational and NoSQL databases. Work with: PostgreSQL MongoDB BigQuery Redis (desirable) Ensure performance, resilience, and data integrity across services. Implement efficient querying, indexing, and transactional processing. Engineering Excellence Promote agile and DevSecOps practices. Support observability through: Logging Metrics Tracing Monitoring Participate in architecture reviews and engineering governance. Mentor junior engineers and contribute to engineering communities of practice. Required Skills & Experience Core Development Skills Strong commercial experience developing backend applications using Golang. Solid understanding of: Goroutines Channels Concurrency patterns Memory management Performance optimisation Experience developing RESTful APIs and service-oriented architectures. Strong understanding of software engineering principles and design patterns. Microservices & Distributed Systems Proven experience designing and operating production-grade microservices. Experience building highly available distributed systems. Strong appreciation of scalability, reliability, and fault tolerance principles. Experience supporting mission-critical production services. Messaging & Event Processing Hands-on experience with: Apache Kafka RabbitMQ Event-driven architectures Message orchestration Stream processing Databases Experience working with: Relational PostgreSQL MySQL (desirable) NoSQL MongoDB Redis BigQuery Strong understanding of: Data modelling Query optimisation Transaction management Performance tuning Cloud & Containers Experience with: Docker Kubernetes Helm CI/CD pipelines Exposure to one or more cloud platforms: AWS Google Cloud Platform (GCP) Azure Operational Excellence Experience with: Monitoring and alerting Distributed tracing Production support Incident management Observability tooling Examples include: Prometheus Grafana ELK Splunk OpenTelemetry Desirable Skills Previous experience within: Banking Payments FinTech Open Banking Financial Services Knowledge of payment processing concepts. Experience with ISO 20022 messaging. Understanding of regulatory and security requirements within financial institutions. Experience with Go frameworks such as: Gin Echo Fiber Experience using Terraform and Infrastructure as Code. Exposure to PHP-based legacy environments. Knowledge of Domain-Driven Design (DDD). Experience implementing API security standards including OAuth2 and JWT. Behavioural Competencies Strong analytical and problem-solving skills. Ability to work within cross-functional agile teams. Excellent verbal and written communication skills. Ability to influence technical decisions and architectural direction. Ownership mindset and commitment to engineering excellence. Passion for continuous improvement and innovation. Preferred Candidate Profile We are particularly interested in engineers who have successfully built and operated large-scale payment or banking platforms, have deep expertise in Golang and distributed systems, and can demonstrate experience delivering resilient, cloud-native microservices supporting high-volume transaction processing in regulated environments. Screening Keywords (for recruiters) Must Have Golang Microservices Kafka/RabbitMQ Distributed Systems Kubernetes Docker PostgreSQL MongoDB Event-Driven Architecture Strongly Preferred Payments FinTech Banking High Throughput Transactions Cloud (AWS/GCP/Azure) CI/CD Observability Pracyva is one of THE FASTEST GROWING specialized RecruitmentConsulting firm in UK and Europe… Pracyva Limited has local presence across UK , Europe ( Ireland, Netherlands , Poland ,Germany ), USA, Middle East  and India , serving Top IT clients for large volumes ..We are currently hiring for our Reputed client