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Software Engineer @ Apex Systems US

London, England, GBOnsiteFull-time
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About this role

Salary: £? - ? per year

Requirements

  • Bachelors degree in Computer Science, Computer Engineering, or a related technical discipline, or equivalent practical experience
  • Professional software development experience, including a proven track record of independently owning and delivering software components
  • Proficiency with Java, Kotlin, and TypeScript
  • Experience designing and building distributed systems, backend services, and cloud infrastructure using AWS technologies such as EC2, NLB, ElastiCache, Lambda, and DynamoDB
  • Strong familiarity with infrastructure as code using AWS CDK, networking fundamentals (DNS, HTTP/TLS, and load balancing), and Linux/UNIX command-line tools and shell scripting
  • Experience with high-throughput, low-latency distributed systems operating at scale
  • Advanced coding skills, including concurrency, profiling, and performance optimization
  • Familiarity with CI/CD pipelines and deployment automation technologies
  • Knowledge of network edge security, including DDoS protection, authentication protocols, and TLS termination
  • Commitment to software engineering best practices, including unit testing, code reviews, and continuous deployment
  • Fluency and interest in using generative AI tools and agents to improve engineering productivity

Responsibilities

  • Design, build, and extend features for our remote MCP platform to accelerate and support internal teams
  • Improve operational efficiency while maintaining service availability and network security
  • Participate in on-call rotations and operational excellence practices to support system reliability
  • Independently own and deliver medium-complexity features with minimal guidance
  • Write high-quality, maintainable code and participate in team code reviews
  • Work effectively in ambiguous situations and proactively resolve technical blockers
  • Create and tune dashboards, runbooks, and alarms
  • Clearly communicate progress, blockers, and technical trade-offs to stakeholders and team members

Technologies

  • AI
  • AWS
  • Lambda
  • Backend
  • CI/CD
  • Cloud
  • EC2
  • HTTP
  • Support
  • Java
  • Kotlin
  • Linux
  • Load Balancing
  • MCP
  • Network
  • Security
  • TypeScript
  • Unix
  • DevOps

More

Were hiring a Software Dev Engineer to join our dynamic engineering team in London, working on our remote MCP platform and mission-critical services. This is an on-site role in London, paying £390 per day (£48.75 per hour), on a one-year agency contract inside IR35, with the possibility of extension.

last updated 46 week of 2026

Skills

JavaKotlinTypeScriptAWSAWS CDKLinuxCI/CDDistributed SystemsNetwork SecurityUnit testingCode Reviewgenerative artificial intelligence

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