Senior Back End Developer designing and implementing backend services for a data-heavy product at CoLab, an AI platform transforming engineering decisions.
Responsibilities
Own the backend architecture for a new data-heavy product offering
Design and implement services in Python that are reliable, scalable, and maintainable
Model, query, and optimize complex datasets in Postgres
Identify and resolve performance bottlenecks in data-intensive workflows
Collaborate closely with frontend developers to shape APIs and user-facing functionality
Make pragmatic tradeoffs between speed of delivery and long-term scalability
Establish patterns and standards that future backend developers can build on
Requirements
7+ years of backend development experience in a production environment
Strong experience with Python and relational databases (Postgres preferred)
Proven ability to design data models and optimize query performance
Experience building and maintaining APIs for data-heavy applications
Comfortable owning systems end-to-end, from design through production
Senior backend engineer owning critical, high - throughput systems for Helius, a Solana developer platform. Driving architecture, optimization, reliability, and developer infrastructure at scale.
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Backend Developer building Camunda workflow and orchestration solutions for insurance - sector digital services. Integrating Java microservices, APIs, messaging, and backend systems in an Agile squad.
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