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Benefex

Senior Backend Engineer, Python

Benefex

. Design and build features for Brain, Benifex’s flagship AI product for Reward Directors .

Posted 11/2/2026full-timeLondon • United KingdomSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in Python and backend development, with a strong focus on AI product features and GenAI solutions. Proven ability to collaborate effectively with cross-functional teams while ensuring code quality, performance, and security.

Highest-signal resume keywords
Python Backend DevelopmentGenAI ExperienceSQL ProficiencyAI Security KnowledgeCollaboration Skills

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Backend DevelopmentGenAI SolutionsSQLClean Code PracticesDebuggingContainerizationCI/CD PipelinesMicroservicesEvent-Driven SystemsAI Coding Assistants
Soft Skills
CollaborationCommunicationProblem-SolvingDocumentation
Tools & Technologies
MCPLangfuseGrafanaGoogle Pub/SubRedisGCP
Industry Keywords
AI Product DevelopmentAgentic OrchestrationRAG-Based SolutionsObservabilityPerformanceSecurityMaintainability

Tech Stack

Tools & technologies
Google Cloud PlatformGrafanaJavaMicroservicesPythonRedisSpringSpring BootSpringBootSQL.NET

About the role

Key responsibilities & impact
  • Design and build features for Brain, Benifex’s flagship AI product for Reward Directors
  • Use Python/.NET engineering experience to understand the Benefits product and APIs
  • Own feature quality by testing work, fixing defects, and improving team practices
  • Write clear, convention-following code and provide actionable pull-request feedback
  • Improve accessibility, performance, security, and maintainability
  • Strengthen alerts and runbooks, improve observability, and help resolve production incidents
  • Collaborate with Product, Design, and Engineering colleagues to deliver the right outcomes
  • Work effectively with remote teams, including Java Spring Boot engineers
  • Support onboarding of new engineers
  • Use and evolve Benifex’s AI-assisted development practices
  • Participate in the interview process as specified

Requirements

What you’ll need
  • Must be based in the UK, Ireland, Germany, or the Netherlands
  • Visa sponsorship is unavailable
  • 6+ months of commercial production GenAI experience
  • Experience using MCP, orchestrating multiple agents, RAG-based solutions, evals, and agentic observability with Langfuse
  • Experience with AI security and responsible AI
  • Track record of delivering features end-to-end
  • Solid commercial backend development experience with Python
  • Confidence working with SQL
  • Knowledge of clean, maintainable code and non-functional concerns including performance, security, and testability
  • Comfortable debugging and diagnosing issues in running systems
  • Exposure to containerisation and CI/CD pipelines
  • Awareness of agentic orchestration, microservices, and event-driven systems
  • Experience with AI coding assistants such as Claude Code, Copilot, or Cursor
  • Interest in AI Native engineering practices
  • Strong collaboration, communication, problem-solving, and documentation abilities
  • Bonus: A2A integrations, Google Pub/Sub, Redis, GCP deployment and scaling, observability tools such as Grafana, and mentoring junior engineers

Benefits

Comp & perks
  • Tech setup of your choice (MacBook Pro or equivalent, monitors, etc.)
  • £/€800 annual learning budget
  • Two hours per week as “Focus Fridays”
  • Flexible work setup
  • 25 days holiday plus local bank holidays
  • Birthday off
  • Two half-day wellbeing days
  • Healthcare cash plan
  • Employee Assistance Plan with 24/7/365 support
  • Income Protection (75%)
  • Life assurance (4x salary)
  • Pension scheme
  • Enhanced parental leave package: 26 weeks fully paid maternity leave and 4 weeks fully paid paternity leave
  • £50 monthly allowance via Benifex card