Top Software Engineer Jobs in Leon

Develop and support software features per team guidance; analyze requirements, design system specifications, document solutions, follow SDLC, and maintain/upskill using current development tools.

Embedded with strategic customers to design and deliver end-to-end technical solutions. Architect integrations, write production software (primarily Python), collaborate with customer engineers and executives, and own high-impact projects from design through delivery.

The Software Engineer II will design, develop, and implement software solutions, utilizing accounting experience to enhance financial processes. The role requires collaborating with teams to improve workflows and support software systems.

As a Software Engineer II, you will design, develop, and maintain new features, collaborate with other engineers, and mentor junior staff while ensuring high-quality scalable solutions.

The Software Engineer III will design features, ensure quality standards, optimize performance, collaborate with teams, and maintain code quality in a DevOps environment.

Develop and maintain full-stack applications using Java, TypeScript, and React; collaborate on enhancing customer experience and technical infrastructure.

Design, build, ship, and own high-scale, user-facing product features across frontend, backend, and data systems. Define problems, scope and prioritize work, collaborate with Product, monitor production usage, debug incidents, improve reliability, review code, and mentor engineers. The role requires strong backend expertise alongside React proficiency and ownership from product discovery through long-term maintenance.

Build and ship production AI agents that help mobile app developers manage subscriptions and paywalls. Own agent orchestration, tool execution, context management, evaluation, observability, permissions, and human-in-the-loop controls. Develop reliable, secure, user-facing backend systems, scope projects independently, monitor adoption, improve features after launch, participate in architecture and incident response, and mentor engineers.

Owns product initiatives end to end, including problem framing, architecture, implementation quality, AI-agent workflows, production launches, observability, and post-launch metrics. Partners closely with product managers, designers, engineering peers, and engineering management. Makes autonomous technical decisions, ensures security and performance, and delivers measurable marketplace outcomes across a shared PHP/Laravel and TypeScript/React platform.

Designs and maintains scalable Golang backend services, APIs, microservices, automation tools, and Terraform infrastructure modules. Automates cloud provisioning, collaborates across architecture, DevOps, security, and engineering teams, and participates throughout the software development lifecycle. Responsibilities include code and infrastructure reviews, troubleshooting, performance optimization, production support, and mentoring. The role also promotes practical AI tool adoption, including Claude, while owning deliverables and communicating project risks and dependencies.

Design and implement reliable, high-performance Rust services and libraries powering trading, payments, and crypto products. Build scalable distributed systems, network services, and asynchronous applications for revenue-critical, low-latency environments. Debug issues across the operating system, network, and application layers; collaborate with product teams; own systems end to end; and mentor engineers while contributing to technical culture.

We are seeking a product-minded backend engineer to work on our Customer Studio product, focusing on data performance, analytics, audience syncing, and generative AI. The role requires strong architecture, scalability considerations, and product engagement.

The role involves developing tools for enterprises to manage Hightouch deployments, focusing on access control, change management, and data warehouse performance.

The Software Engineer will work on high-throughput streaming systems, scaling infrastructure to manage billions of events, ensuring low-latency and high performance while delivering projects from start to finish with significant ownership.

The role involves rapid prototyping and architecting production LLM pipelines for AI in marketing workflows. Responsibilities include developing proofs of concept, making AI architecture decisions, building production data agents, and understanding user workflows for seamless AI experiences.

Develop backend systems using C# and AWS, design REST APIs, enhance performance, and automate infrastructure in a remote team environment.

Design and develop robust REST APIs and scalable features utilizing C# and AWS services. Collaborate with a diverse team while focusing on clean code and performance improvements.

As a Backend Developer, you'll create and enhance the backend using Python and TypeScript, design REST APIs, leverage AWS for the platform, and work in a collaborative environment.

Build and ship end-to-end features for internal dashboard and customer portal in a TypeScript/Next.js stack. Design UIs, implement APIs, data models, tests, media playback, embedding-based search, secure access controls, and work with large multimodal datasets across Postgres and AWS.

Own end-to-end features for Clara's Collections squad: design and implement Java Spring Boot backend services for payments and reconciliation, build React+TypeScript frontends, model data with PostgreSQL and Redis, work with event-driven architectures (e.g., Kafka), build secure REST APIs, use CI/CD/Docker/Git on cloud (AWS), and use AI coding tools daily while collaborating with product and pod leads.

Join Aleph's engineering team to develop the Core Product, focusing on user-facing features for financial data insights. Collaborate with leadership, design robust software components, and contribute to system architecture in a fast-paced, remote environment.

Design, build, test, and maintain scalable web applications and backend services. Collaborate with cross-functional teams, write clean production-ready code, integrate APIs and databases, troubleshoot and optimize performance, participate in code reviews, and maintain technical documentation.

Design and scale backend systems, APIs, and services for Nango’s open-source developer infrastructure platform. Build APIs, SDKs, UIs, and runtime systems, optimize performance and reliability, solve integration challenges with customers, shape the roadmap, and maintain the open-source repository. The role requires strong ownership, product thinking, developer empathy, communication, and autonomy in a remote-first startup environment.

Design, build, and maintain consumer-facing features across web (React) and mobile (React Native). Own product lifecycle from discovery through release, monitoring, experimentation, and iteration. Drive A/B testing and feature-flag strategies, make architectural decisions, ensure accessibility/performance/testability, mentor engineers, and collaborate with Product, Design, Data, and Platform teams.

Develop and optimize distributed systems for syncing customer data, focus on scalability, reliability, and performance for global clients.