Top Software Engineer Jobs in Leon

Build and ship high-quality React Native mobile experiences for Kraken’s consumer financial products. Own features end-to-end, from problem discovery and technical design through implementation, launch, measurement, and iteration. Collaborate closely with Product and Design, work with APIs and real-time data, optimize performance and reliability, and contribute to architecture, code reviews, technical discussions, and product strategy.

Build and maintain Python backend services supporting payment processing, risk controls, and financial transaction flows. Contribute to scalable architecture, cloud-native solutions on GCP, reliability improvements, production troubleshooting, CI/CD, observability, and developer tooling. Collaborate with product managers, designers, and engineers to deliver secure, performant, and maintainable systems.

Develop server-side APIs for user authentication and data management, utilizing AI-assisted tools while ensuring code quality and addressing customer issues at scale.

The Back-End Engineer will design and develop scalable services in a Java ecosystem, integrate AI tools, diagnose issues, and provide technical leadership.

Design and implement robust Rust services and foundational libraries for Kraken’s core infrastructure. Build scalable, observable, secure, and fault-tolerant distributed systems supporting trading and internal platforms. Collaborate on architecture, debug issues across the operating system, network, and application stack, and take end-to-end ownership of long-lived systems and libraries.

Supports the software development lifecycle by designing, developing, documenting, testing, and deploying software solutions. Works with engineering teams to build features, evaluate development tools and processes, monitor metrics, support software system usage, and maintain compliance with project plans and industry standards. The role involves frontend SPA development, backend API development, relational databases, and leveraging AI tools such as Claude.

Own and improve the Command|Alert alerting platform, including rule evaluation, anomaly detection, event correlation, reliable Kafka and OpenSearch pipelines, and downstream notifications. Convert security and network telemetry into usable topologies and dependency maps, support LLM-based alert generation, resolve production issues, lead reliability improvements, deliver independent projects, and mentor engineers while shaping technical direction.

Design, develop, and maintain custom ServiceNow applications, workflows, catalog items, and integrations. Build AI skills, autonomous agents, and agentic workflows using Now Assist. Govern platform changes, manage cross-platform impacts, oversee upgrades, and ensure vendor compliance. Partner with architects and stakeholders to translate requirements into Agile deliverables. Mentor developers and apply ITIL principles while supporting core ServiceNow modules.

Design, develop, and maintain integration services connecting warehouse management systems with ERP platforms, carriers, and trading partners. The role involves solving technical issues, improving integration architecture, debugging distributed systems, delivering reliable software in an Agile environment, and mentoring junior developers. Responsibilities also include technical documentation, code quality ownership, process improvement, stakeholder collaboration, and identifying enhancements to integration reliability and error handling.

Design and develop innovative software solutions, contributing to high-quality releases, code reviews, and continuous improvement in a SCRUM team. Participate in application support and manage deployment processes for production environments.

As a Software Engineer, you will build features, write maintainable Roblox Lua code, collaborate with teams, and enhance gameplay for millions of players.

Participate in all phases of the software development lifecycle using Agile. Translate business requirements into BRDs, design, develop, and maintain .NET applications, debug defects, execute unit/integration/system testing, collaborate cross-functionally, and produce technical documentation and test plans.

Join a distributed team to design, build, and maintain scalable full-stack web applications. Contribute backend and frontend code, follow OOP principles, troubleshoot and optimize performance, participate in code reviews, work in Agile, and learn or use PHP/Laravel as needed. Must overlap Central or Pacific Time and communicate in advanced English.

Early-career engineer role building AI-driven features, prototypes, and production-quality systems using modern AI coding agents. Work closely with founders and senior engineers to iterate fast, direct and evaluate AI agents, and contribute to AI infrastructure and agentic development workflows.

As a Software Engineer, you will develop high-quality software solutions, ensure timely project completion, and participate in the Agile process, improving methods of product development.

Design, implement, and release high-quality software features and bug fixes within a microservices architecture. Follow best practices, participate in Agile, use CI/CD and Kubernetes, and continuously improve development processes and team collaboration.

Design, build, and own backend services for Learning Products. Deliver end-to-end features, design scalable APIs and data models, ensure observability and production readiness, integrate with CI/CD, collaborate with product and QA, mentor junior engineers, and improve engineering practices across the SDLC.

Design and build backend services, drive features independently, collaborate with teams, and mentor junior engineers while ensuring high-quality software delivery.

Build and operate production systems for Juniper Square’s AI Platform, including APIs, infrastructure, reusable frameworks, and AI/LLM capabilities. Own projects end to end, ensure reliability and observability, contribute to technical design, and support incident response. Collaborate with product, design, QA, and engineering teams while applying AI-native development practices. The role requires strong Python backend engineering, cloud-native technologies, databases, production operations, and hands-on experience with RAG, agents, evaluation workflows, or related AI systems.

Build and deliver full‑stack, production-grade features end-to-end. Design, implement, test, deploy, and operate services on AWS. Use AI-assisted tools responsibly, maintain CI/CD and observability, participate in on-call and incident response, and mentor junior engineers while collaborating with product and design.

Design and implement robust Rust services and libraries for trading, payments, and crypto consumer experiences. Build scalable, low-latency distributed systems, write efficient testable code, ensure security and reliability, debug across the stack, collaborate with product teams, own systems end-to-end, and mentor other engineers.

Own and improve enterprise web analytics across thousands of websites. Design, implement, test, monitor, and troubleshoot data layers, tags, pixels, and tag-management systems. Partner with developers, data engineers, IT, and business stakeholders to ensure accurate data collection, integrations, governance, and reporting. Analyze requirements, explain digital analytics concepts, support third-party integrations, and provide technical guidance to development teams. This is a full-time remote role requiring strong communication, problem-solving, and cross-functional collaboration.

Build and maintain full-stack features for a high-volume email and communications platform. Develop .NET APIs, services, data pipelines, and Azure cloud-native systems while improving delivery infrastructure, queueing, deliverability, reliability, observability, and modernization. Collaborate with product and engineering stakeholders, participate in design reviews and incident response, and mentor junior engineers. The role requires experience with email delivery at scale, distributed systems, React/Next.js, SQL Server, event-driven architectures, SaaS platforms, and English-Spanish fluency.

Build and maintain full-stack features for an enterprise reporting platform. Develop .NET APIs, services, data pipelines, and AWS cloud-native systems while optimizing queries, schemas, scalability, and reliability. Collaborate with product and engineering teams, participate in design reviews and incident response, and mentor junior engineers. The role requires ownership across backend, frontend, and infrastructure, with React experience and fluency in English and Spanish.

Own and operate large-scale backend systems supporting network, SD-WAN, SASE, and security infrastructure. Build services, APIs, data pipelines, and automation primarily in Go and Python. Lead system design, incident response, post-mortems, reliability improvements, and greenfield development. Mentor engineers, guide technical decisions, improve engineering productivity, and collaborate across teams on complex platform initiatives.