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
Only candidates based in UK and eligible to work in UK are allowed