Senior Software Engineer (Integrations)

Job Description

Senior Integrations Engineer 🔗 Various integration styles · Build the frameworks · Scale to thousands of feeds At CO3, we are standing up a new team to take technical ownership of a live logistics platform integrated into our ecosystem. The platform lives and dies by integrations: connecting a hyper-fragmented market of heavy fleets, logistics providers, and telematics systems into one unified, real-time data stream. We’re looking for a Senior Integrations Engineer who doesn't just wire up one more API — but deeply understands existing integration flows, maintains system stability, and builds the scalable frameworks to unify and modernize our entire integration pipeline. 🚀 Why this role? Real Platform Evolution: Take ownership of a live production platform—understanding its current integration layer, maintaining production reliability, and modernizing the stack into CO3’s core architecture. Genuine Ownership: Integrations, cloud infrastructure, engineering standards, and the unification strategy are yours to participate in and execute. Scale & Ecosystem Variety: Hundreds of active integrations across the logistics ecosystem, handling high throughput and complex data feeds. Build Frameworks, Not Just Plugs: Build and extend the internal abstractions, tooling, and developer frameworks that make every future integration faster, safer, and easier to maintain. 🎯 Your mission Deconstruct & Maintain: Deeply analyze existing integration pipelines and telematics feeds, keeping them stable, reliable, and performant in production. Tackle Multiple Integrations: Work across diverse integration styles (REST, streaming/Kafka, webhooks, batch, message queues, vendor protocols) and keep high data quality. Build Tooling & Frameworks: Design reusable frameworks and internal developer tooling so the team can scale to thousands of feeds without increasing operational overhead. Design for Scale & Resilience: Build for high throughput, back-pressure handling, retries, and data integrity across distributed data streams. Modernize & Unify: Step-by-step refactor and transition legacy integration flows into CO3's unified, event-driven platform architecture. Work AI-Native: Utilize modern AI tooling to rapidly navigate existing integration codebases, streamline refactoring, and raise development velocity. 🎁 What's in it for you High-Impact Leverage: Build and maintain the core frameworks, abstractions, and developer tooling that power multiple data feeds, ETL pipelines, and data integrations across Europe. Modern & AI-Native Stack: Work with Kafka, AWS/GCP, event-driven architecture, and Java/Spring—backed by a fully AI-integrated daily workflow. Solve Real Data Scale: Tackle heavy data volumes, batch processing, and various integration patterns. True Product Ownership: One long-term evolving logistics platform, no body-leasing or software house setup, and a candid, "No-BS" engineering culture. Flexibility: Remote-first across Poland with an optional Wrocław office setup (Powstańców Śląskich).