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Builds and maintains scalable backend systems in Rust/C++ and Python, integrating AI workflows with databases like PostgreSQL and Kubernetes, to deliver enterprise-grade solutions.
Backend engineer designing and building features in PHP 8.1 with Symfony 5 and Laravel on MSSQL/PostgreSQL, plus Redis, Elasticsearch, AWS/GCP and Docker. Day to day includes estimation, writing tested robust code, and communicating with stakeholders; ~40 hrs/week flexible, offices in Iași and Bucharest, Romania.
Senior backend engineer who designs, delivers, and maintains .NET Core services and APIs powering Cognitiv's ContextGPT pixel-less ad targeting platform, with a focus on scalability, reliability, and observability. Works hybrid from Bellevue, WA (3 days in office) alongside cross-functional partners.
Lead Backend Engineer at Algoworks integrating and scaling two large healthcare data platforms (~500 TB, ~50 GB ingested daily). Day to day: build Python data ingestion/enrichment pipelines, design a metadata-driven attribute framework, and redesign SolrCloud search architecture, with some Java/Spring API work. Remote within India, 8+ years experience.
Senior Java backend engineer who architects scalable, cloud-native microservices and event-driven Kafka pipelines for high-throughput systems. Day to day involves Java 17/21 with Spring Boot, Kubernetes/Docker on AWS/Azure/GCP, database and caching optimization (PostgreSQL, MongoDB, Redis), plus CI/CD and mentoring.
Senior backend engineer at an AI-centric tech startup: build and maintain backend services, APIs, webhooks, and automations using TypeScript, Node.js, PostgreSQL, and Supabase, while integrating AI models, agents, RAG, and tool calling into products serving regulated sectors. 100% remote from Mexico, full time.
On-site backend developer in Medellín who builds and maintains server logic, SQL/NoSQL databases, and secure RESTful APIs, collaborating with frontend developers across the full software lifecycle. Requires solid knowledge of at least one of Java, Python, Ruby, .NET, Node.js, or PHP and 1+ year of backend experience.
Senior backend developer on Dialogue's Client Experience team, building and operating mission-critical applications and API services for a Canadian virtual care platform serving ~3 million members. Core stack is Python with PostgreSQL and AWS on cloud infrastructure, with React experience a plus.
Staff backend engineer on HighLevel's Trust, Controls & Safety team, architecting a real-time control plane that protects signups, SaaS billing, and messaging from abuse and accidental surges. Day-to-day work spans database architecture (MongoDB, Firestore, ElasticSearch), system design, observability, and hands-on coding at massive scale.
Back-end software engineer at Kin (home insurtech) building products and features in small Agile teams on a Ruby on Rails stack with a TypeScript front-end and PostgreSQL. Day to day: writing maintainable Rails code, pairing with teammates, and collaborating cross-functionally.
Senior Java backend developer in Singapore's Central Area who designs, builds, and maintains enterprise Java services plus Oracle database business logic. Heavy focus on PL/SQL (stored procedures, packages, functions, triggers) and SQL performance tuning, using Java SE/EE, Spring Boot/MVC, MyBatis, and RESTful APIs; MongoDB/ClickHouse exposure is a plus.
Senior backend engineer on Fetch's Data & Agentic Context Platforms team, designing and operating the APIs, data pipelines, and storage/retrieval systems that serve trusted organizational and user context to AI agents at scale. Work centers on distributed systems, streaming/batch data infrastructure, and vector/search retrieval on AWS.
Staff Backend Engineer on Altruist's Platform team, designing and scaling shared Java/Spring Boot REST services on Postgres, deployed on AWS and Kubernetes. A hybrid role (3 in-office days/week in Culver City or San Francisco) building cross-team infrastructure, tooling, and mentoring on secure, performant code.
The Backend Integrations Engineer helps design, build, and maintain pipelines and platforms that power our data-driven decisions across the enterprise. This role will work across cloud platforms, digital systems, and…
Backend specialist (Python/Node.js) at beauty group Grupo Boticário, working in a Direct Sales digital product squad to build Generative AI solutions that support the sales force. Day to day: technical leadership, backend development, GenAI PoCs, automated testing, observability, and CI/CD on AWS. Remote within Brazil; affirmative vacancy for diverse talent.
Für ein renommiertes Unternehmen aus dem maritimen Industrieumfeld in Kiel suchen wir zum nächstmöglichen Zeitpunkt einen Spezialist Datenbanken & Backend-Entwicklung (m/w/d). In dieser anspruchsvollen Position…
Senior backend developer working remotely from Brazil, building and maintaining internal systems and tools for a multinational packaging company's multidisciplinary team. Core stack is .NET Core, MVC, C#, Entity Framework, and SQL Server, with Git and agile practices.
Tutor position at UTN FRBA's e-Learning Center to design and teach a Java & Spring Boot enterprise backend training track: building course materials, giving weekly synchronous evening classes, and evaluating students asynchronously. Core stack: Java, Spring Boot, microservices, Spring Security, Docker/Kubernetes.
Copello is hiring a Senior Backend Engineer in London to build cloud-based distributed systems and scalable microservices using Java, Python, Rust, and C++. The role involves maintaining CI/CD pipelines, working in a mature agile environment, and exploring AI/ML innovations for its product range.
Senior backend engineer at Navan scaling the core services behind its AI-first corporate travel and expense platform — building payments, card issuing, and accounting integrations plus automated policy and admin controls, with a focus on reliability, testing, and monitoring on a global cross-functional team.
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