Senior Software Engineer
Hirewell
About Hirewell
Senior Software Engineer
Staff Software Engineer – Platform & Distributed Systems$85-100k GBP
We are looking for a Staff Software Engineer to help lead the evolution of a highly scalable distributed data platform powering large-scale enterprise systems. This role is ideal for someone who enjoys solving complex backend and infrastructure challenges, influencing technical strategy, and mentoring engineers while remaining hands‑on with architecture and development.
You’ll work across engineering teams to design and build high-performance distributed systems, scalable data pipelines, and cloud-native services operating at massive scale. This position plays a key role in shaping long‑term platform architecture, improving system reliability and observability, and driving engineering best practices across the organization.
What You’ll Do
Lead the design and development of scalable backend systems and distributed data platforms
Architect and optimize high-performance, high-availability cloud-native services
Build and maintain large-scale ETL and data processing pipelines
Design APIs, microservices, and service-to-service communication frameworks
Develop scalable systems for processing large, streaming, and multi-tenant datasets
Drive technical strategy and influence architecture decisions across teams
Improve platform observability, monitoring, reliability, and operational performance
Collaborate closely with engineering leadership, product teams, and stakeholders
Mentor engineers and contribute to engineering standards and best practices
Participate in system troubleshooting, root cause analysis, and performance tuning
Create and maintain technical documentation and architectural standards
What We’re Looking For
10+ years of backend or platform engineering experience
Strong experience building and operating distributed systems at scale
Deep understanding of microservices architecture and service-oriented design
Experience with containerized environments using Docker and Kubernetes
Strong cloud experience with AWS, Azure, or GCP
Expertise with relational and non-relational databases such as PostgreSQL, MySQL, Cassandra, or Elasticsearch
Experience designing scalable APIs and backend services using gRPC and Protocol Buffers
Strong programming experience with Java/Kotlin, Python, C#, or similar backend technologies
Experience with CI/CD pipelines, automated deployments, and infrastructure automation
Strong understanding of system design, scalability, security, and observability
Ability to lead complex technical initiatives while collaborating across multiple teams
Nice to Have
Experience working with large-scale data platforms or multi-tenant systems
Familiarity with feature flags and release toggle strategies
Experience evaluating or integrating third-party platforms and services
Experience with service mesh technologies such as Envoy or AWS App Mesh
Background in highly regulated or enterprise-scale environments
Familiarity with Agile development practices
What’s Offered
Opportunity to work on highly complex distributed systems and platform challenges
Strong engineering culture focused on collaboration, scalability, and innovation
High‑impact role with influence on technical direction and architecture
Growth opportunities within a fast-moving engineering organization
Flexible and collaborative work environment
Must be able to work in the UK without any sponsorship!
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