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Senior Software Engineer | Platform

Join ARQ as a Senior Software Engineer to design and implement secure infrastructure for a high-growth fintech company.

Location
London, United Kingdom
Compensation
Not disclosed
Level
senior
Type
full time

Posted by employer 19 hours ago

First seen on Joblaze 1 hour ago

Last verified on the company career page 1 hour ago

Apply at ARQ → Save job Scanned from arqfinance.com

What you'll build

  • Design and implement secure infrastructure layer
  • Ensure rapid infrastructure setup for product engineering
  • Problem-solve and debug infrastructure issues
  • Orchestrate multi-region infrastructure and deployments
  • Build and maintain high-volume CI infrastructure

Must have

  • Strong background in full-cycle software development
  • Experience with large-scale distributed production systems
  • Fluent in at least one modern typed language
  • Hands-on experience with Kubernetes and CI/CD
  • Deep understanding of modern cyber-security attack vectors

Nice to have

  • Experience with TypeScript
  • Experience in regulated environments
  • Familiarity with scaling data engineering pipelines
  • Experience with ArgoCD or Flux

Not disclosed in this posting: compensation, years of experience, work arrangement, visa sponsorship.

Benefits

Discretionary performance bonus (stock options) Own the platform that directly impacts customer experience Paid annual leave Work with modern DevOps practices and cutting-edge technology Sign-on stock options bonus Influence technical direction and architecture decisions Strong team focused on continuous learning and knowledge sharing Competitive salary commensurate with experience

Joblaze summary

In this role, the Senior Software Engineer will focus on designing and implementing a secure, highly-available infrastructure that supports ARQ's financial services. Key skills include proficiency in modern programming languages like TypeScript or Go, along with hands-on experience in Kubernetes, CI/CD, and infrastructure as code tools. This position is ideal for someone with a strong software engineering background and a passion for building scalable systems, particularly in regulated environments. ARQ's engineering culture emphasizes collaboration and continuous improvement, making it a fitting environment for those who thrive on complex challenges.

Joblaze insights

  • Listed today — first seen on Joblaze October 21, 2026. Last confirmed on ARQ's careers page October 21, 2026.

Quick facts

What's the tech stack?
Joblaze extracted these technologies from the posting: CDK, CI/CD, Datadog, Go, Grafana, Java.
What seniority level is this role?
ARQ targets senior candidates for this position.
Is this full-time or contract?
Full-time for this Senior Software Engineer | Platform role at ARQ.

From the original posting

 

What we're looking for

We’re looking for a world-class, hands-on Senior Software Engineer to join our Platform team who takes a software engineer’s approach to architecting and building engineering infrastructure.

Our engineering culture is focused on fully type-safe, declarative & testable infrastructure as code and we’re looking for like-minded engineers who also value these properties to join us.

The ideal candidate will have a raw passion for programming, a broad knowledge base and the ability to dig deeply into any technical area required to enable our product engineering team to deliver the best product on the market for managing modern finances.

We architect extreme-quality, automated systems to orchestrate hundreds of backend services & databases across tens of kubernetes clusters, tens of thousands of data processing jobs and tens of thousands of CI/CD builds per week - if that excites you, we want to talk to you.

 

What you'll be doing

  • The design and implementation of the secure, highly-available infrastructure layer that powers a modern, high-growth, financial services company.

  • Ensure our product engineering organisation can spin up new infrastructure in an unimpeded and rapid manner, through the careful design and implementation of shared IaC libraries, cli tools and codebase patterns.

  • Problem-solve, analyse and debug infrastructure issues & opportunities with members of the wider engineering team.

  • Strategise & execute on the rollout techniques for making sweeping infrastructure changes as we constantly integrate new best practices & security improvements into our setup.

  • Orchestrate multi-region infrastructure and deployments to meet security, availability and compliance requirements.

  • Build, maintain & optimise high-volume CI infrastructure, along with reusable pipeline templates suitable for a microservices architecture.

  • Implement GitOps workflows for declarative application deployments.

  • Improve application monitoring and alerting with Datadog, Prometheus, and Grafana.

 

What you'll need

Required Experience

  • Software Engineering Foundation: Strong background in full-cycle software development. You should be as comfortable building a customer-facing API as you are provisioning a Kubernetes cluster.

  • System Design: Experience driving the architecture and implementation of large-scale, distributed production systems.

  • Strong Programming Skills: Fluent in at least one modern typed language (e.g., TypeScript, Go, Rust, or Java). We write code, not just config.

  • Modern Infrastructure Stack: Hands-on experience with Kubernetes, CI/CD, and sophisticated IaC (Pulumi, Terraform, or CDK).

  • Security Mindset: Deep understanding of modern cyber-security attack vectors and how to bake "secure-by-default" patterns into the platform.

Nice to Have

  • TypeScript Fluency: Experience with TypeScript and systems to ensure infrastructure safety.

  • Fintech Expertise: Experience working within regulated environments or high-compliance industries.

  • Data Infrastructure: Familiarity with scaling data engineering pipelines and distributed databases.

  • GitOps: Experience with ArgoCD or Flux for declarative, state-driven deployments.

What We Value

  • Systems thinking - understanding how distributed systems work end-to-end

  • Problem-solving - methodical debugging of complex infrastructure issues

  • Collaboration - working with engineering teams to understand their needs

  • Documentation - clear runbooks, technical documentation, and knowledge sharing

  • Pragmatism - balancing technical excellence with practical delivery

Benefits

  • Competitive salary commensurate with experience

  • Sign-on stock options bonus

  • Discretionary performance bonus (stock options)

  • Paid annual leave

  • Own the platform that directly impacts customer experience

  • Work with modern DevOps practices and cutting-edge technology

  • Strong team focused on continuous learning and knowledge sharing

  • Influence technical direction and architecture decisions

Standard company text repeated across ARQ's postings is omitted here.