Senior Software Engineer

We're partnering with a
rapidly scaling and innovative leader
in the
FinTech
sector, dedicated to
building the next generation of real-time financial platforms
and
delivering seamless, high-volume digital experiences
. This client is a
product-led company
that thrives on
technical excellence, continuous innovation, and a collaborative spirit
. You'll be part of a team pushing the boundaries of what's possible, tackling complex engineering challenges, and
making a tangible impact
on their core transaction processing and data analytics systems.

We're seeking a highly skilled and experienced
Senior Lead Software Engineer
to join their dynamic Core Platform Engineering team. This is a critical role where you'll be instrumental in
designing, developing, and optimising the foundational backend systems and shared platform services
that power their high-frequency trading and digital payment infrastructure. You'll lead by example,
driving technical design, ensuring ultra-low latency, guaranteeing system scalability and resilience
, and
mentoring
their talented engineers. If you're passionate about building robust, high-performance distributed systems at an enterprise scale, this is your chance to shine.

What You'll Do

• Architect and develop scalable, resilient, and ultra-high-performance backend services
  and APIs using
  Go (Golang)
  and
  Rust
  , with a strong focus on concurrent and distributed programming.
• Lead technical design discussions
  and contribute significantly to the architectural roadmap, emphasizing
  event-driven architectures, microservices, and highly decoupled systems
  on cloud-native patterns.
• Optimise existing systems
  for extreme performance, reliability, and cost-efficiency, identifying and resolving bottlenecks in high-throughput environments.
• Build and maintain robust platform components
  and internal tooling using technologies like
  Crossplane for infrastructure management
  and
  Backstage for internal developer portals
  , empowering other engineering teams.
• Champion advanced DevOps and Site Reliability Engineering (SRE) practices
  , including sophisticated CI/CD pipelines with
  ArgoCD
  , automated infrastructure provisioning with
  Terraform
  , and comprehensive observability (metrics, logging, tracing) using
  Prometheus, Grafana, and OpenTelemetry
  .
• Collaborate closely with quantitative analysts, product managers, and other engineering teams
  to translate complex business requirements into elegant, high-performance technical solutions.
• Mentor and provide technical guidance
  to junior and mid-level engineers, fostering a culture of continuous learning, code quality, and engineering best practices.
• Proactively troubleshoot and resolve complex production issues, contributing to on-call rotations to maintain system uptime and performance SLAs.

What You'll Bring

• 6+ years of progressive hands-on experience
  in backend software engineering, with a significant focus on building and scaling complex distributed systems in a senior or lead capacity.
• Expert-level proficiency in Go (Golang) and/or Rust
  for building high-performance, concurrent applications.
• Deep understanding of distributed systems concepts
  including consensus algorithms (e.g., Raft, Paxos), eventual consistency, and fault tolerance patterns.
• Extensive experience with cloud platforms (AWS strongly preferred)
  , including advanced services related to serverless computing (e.g., Lambda, Step Functions), managed databases (e.g., Aurora, DynamoDB), and messaging/streaming services (e.g., Kafka, Kinesis).
• Proficiency with containerisation and orchestration technologies
  like Docker and
  Kubernetes
  , including designing and deploying resilient applications on Kubernetes.
• Strong knowledge of NoSQL databases
  (e.g., Cassandra, MongoDB, Redis) and experience optimising data models for high throughput and low latency.
• Proven track record of implementing and advocating for
  GitOps principles
  and
  Infrastructure as Code (IaC)
  .
• Experience with Service Mesh technologies
  like Istio or Linkerd is highly desirable.
• Exceptional problem-solving skills
  and the ability to diagnose and resolve complex technical issues in high-pressure production environments.
• Excellent communication and interpersonal skills, capable of clearly articulating complex technical concepts to both technical and non-technical stakeholders.
• Relevant certifications (e.g., AWS Certified Advanced Networking - Specialty, Certified Kubernetes Application Developer (CKAD), Certified Kubernetes Administrator (CKA)) are a strong plus.
• Bachelor's or Master's degree in Computer Science, Engineering, or a related field is preferred.

Next Steps

• If you're a seasoned Senior Software Engineer who thrives on technical challenge, seeks to push the boundaries of distributed systems, and wants to make a significant impact, we encourage you to apply