Senior Software Engineer

Who you are

• You have 5+ years of experience as a backend software engineer, with a strong track record of designing, shipping and operating production-grade distributed systems
• You bring strong technical judgment, ownership and attention to reliability, data consistency, edge cases and operational workflows
• You are comfortable integrating with third-party systems and APIs, and you know how to keep internal data coherent when external partners are slow, unreliable or non-compliant
• You are a fast learner, comfortable entering a complex domain (EV roaming, payments, invoicing) and collaborating closely with product, operations, finance and external partners
• Experience with Go, Ruby on Rails, AWS, event-driven architectures, OCPI/OICP or invoicing systems is a plus, not a hard requirement
• You are fluent in both English and French
• This role is based in Paris
• Even if your profile doesn't match 100% of every criterion, we encourage you to apply

What the job involves

• Join Electra's Roaming squad in Paris as a Senior Software Engineer Backend
• The squad owns everything that lets a driver charge beyond our own network and get billed correctly: OCPI/OICP roaming with dozens of partner operators, our Go-based eMSP service, payments, invoicing and dynamic pricing at European scale
• Your mission: build and operate the backend systems that make Electra's roaming reliable, interoperable and ready to scale to thousands more charging points across Europe
• Design, ship and maintain the backend services and APIs behind roaming and our eMSP: OCPI 2.2.1 and OICP integrations, real-time synchronisation of partner networks (locations, tariffs, sessions, CDRs) and the flows that turn a charging session into a correct invoice
• Work hands-on across our stack: Go for performance-critical services, Ruby on Rails for business logic, PostgreSQL and TimescaleDB, NATS and Redis for messaging and caching, all deployed on AWS with Datadog observability
• Take interoperability, data-consistency and reliability challenges from discovery through rollout: partners with variable uptime, non-compliant protocol implementations, high-volume real-time updates, and follow through after release with Ops, Finance and partner teams
• Make pragmatic technical trade-offs, strengthen observability and incident prevention, and keep the roaming platform available and accurate as volumes grow
• Simplify architectures, improve performance and reliability, and mentor peers while staying a hands-on individual contributor
• Use modern engineering practices and AI-assisted tooling responsibly to accelerate delivery while protecting quality, maintainability and technical judgment

Benefits

• An attractive fixed + variable package (assessed and paid quarterly) + BSPCE
• New offices in the 2nd arrondissement in Paris
• Alan Mutual (50% covered by Electra)
• Restaurant vouchers (Swile Card: €10/day covered at 50%)
• 25 days of CP + 12 days of RTT
• Collective agreement (SYNTEC: holiday bonus, exceptional leave days, etc.)
• An event every quarter with the entire Electra team
• CSE platform, with lots of advantages (culture, sport, etc.)