• We are looking for a passionate and committed Backend Developer to join the UpCities team in our mission to improve people's lives and positively impact society.

• Architect, Build and launch full-stack features and products with an emphasis on backend technologies. • Optimize and scale existing products and services for speed and reliability. • Develop infrastructure to improve and encourage agile, rapid development.

• You’ll own core systems inside the Agent Runtime — the infrastructure that prevents autonomous agents from destroying capital. • Hyperfeed data pipeline — executing the enrichment roadmap: OI velocity, funding history, liquidation data, cross-asset flow detection. Server-side computation at scale. • Runtime execution layer — serial signal processing, atomic state management, idempotent order submission, risk enforcement against live exchange state • DSL exit engine — the trailing stop-loss state machine that protects every open position. Two-phase architecture, exchange reconciliation, state recovery • Scanner subsystem — building new scanner types, optimizing the provider layer, wiring new Hyperfeed signals into the confluence scoring system • Learning agent infrastructure — building the systems that let agents observe every trade, identify failure patterns, propose runtime improvements, and launch new experiments autonomously • Scale — taking the runtime from hundreds of agents to tens of thousands

• Interact with business and technical stakeholders to understand requirements, challenges and expectations • Ensure quality of deliverables to the satisfaction of the customer and end user expectation • Collaborate with the product team to implement robust, high performance, data-driven web applications • Design, build, and maintain the core infrastructure with a focus on extensibility and scalability • Provide insight into modernizing legacy platforms to the latest and greatest technologies • Solve complex problems with innovative and elegant design and delivery • Integrate third party technology into Coiniflow’s tech stack, or vice versa • Enforce coding standards and set a high standard for code quality