Top Software Engineer Jobs in Leon

Design, develop, and maintain cross-functional software components; define technical requirements and architecture; resolve complex bugs and performance issues; apply best coding and testing practices; design scalable data models; work in Agile/Waterfall environments; review code; and mentor junior developers.

Lead architecture and development of scalable legal tech solutions; act as technical lead with external partners; mentor developers; collaborate with customers; write and review technical specifications and complex code; resolve advanced bugs and performance issues; design and manage complex data models; participate in cross-functional planning and execution.

Build and scale the internal developer platform: create tools, services and automation (CI/CD, canaries, feature flags, access workflows) using IaC (Pulumi/Python) and Kubernetes to enable safe, fast shipping. Drive platform initiatives, mentor teams, lead AI tool adoption for engineering, participate in on-call and design/code reviews, and ship major improvements across the organization.

Own and evolve the security product end-to-end: API, UI, data contracts, and ingestion. Integrate telemetry from diverse sources, shape enriched entities and alerts, drive architecture and standards, mentor engineers, and operate autonomously to deliver production-grade, scalable security features.

Lead design, development, and delivery of scalable, secure API and platform services for third-party and automotive integrations. Act as technical lead for partner-enablement, mentor junior engineers, architect high-availability systems, and collaborate with product, BD, and Alexa platform teams to shape technical strategy.

Design, develop, test, integrate, and commission control software, PLC/HMI, and SCADA solutions for energy storage and power infrastructure. Implement control algorithms, CI/CD and version control, support FAT/SAT, troubleshoot systems on-site and remotely, ensure compliance with standards, and collaborate across electrical, mechanical, firmware, and field teams.

The role requires a Junior Software Engineer with accounting experience to develop and maintain innovative software solutions, enhancing financial processes in a dynamic team environment.

Looking for a Senior Software Engineer with 10+ years in delivering software solutions, overseeing feature design, performance optimization, and driving code quality within a team.

As a Data Engineering Architect, lead the transformation of data engineering into a modern platform, oversee architecture and technical leadership, design scalable systems, ensure data quality and governance, and mentor teams for a data-driven culture.

Lead architecture and evolution of Juniper Square’s distributed services, cloud infrastructure, and developer platform. Design scalable, multi-tenant, event-driven systems; build paved-road developer tooling, CI/CD, and observability. Hands-on coding, prototyping, and performance troubleshooting. Enable production AI/LLM workloads, ensure security/compliance, support enterprise upmarket needs, and mentor engineering teams to raise operational excellence and reliability.

Lead decomposition of a PHP monolith into Go microservices, design and operate scalable distributed systems (Kafka, Temporal, OpenSearch, Memgraph), integrate network telemetry and third-party APIs, maintain Terraform-managed cloud infrastructure, enforce SLAs/SLOs and CI/CD quality, mentor engineers, participate in on-call rotations, and drive platform architecture and reliability.

As a Sr. Software Engineer, you will design and develop software features, manage services, and solve complex problems for a digital work platform used by Fortune 500 companies.

Design, build, and operate production AI systems, enhance backend services, improve reliability, and collaborate on technical projects within the AI-native engineering team.

As a Staff Software Engineer at Juniper Square, you'll lead architectural decisions and develop AI-powered systems, mentoring engineers and ensuring high-quality technical standards while collaborating with cross-functional teams.

Lead and mentor developers to design and build scalable eCommerce solutions using a modern JavaScript stack. Collaborate with product and design, engage clients, write and review code, document architectures, and responsibly apply AI-assisted tools to improve velocity, quality, and automation across development workflows.

Lead the design, architecture, and migration of Sezzle's authentication and authorization platform. Build scalable auth services and an API gateway in Golang on AWS, enforce OAuth2/OIDC/SAML/JWT standards, ensure fintech-grade security and observability, mentor engineers, participate in on-call and incident response, and drive cross-team adoption and CI/CD best practices.

The Senior Software Engineer will develop financial systems, mentor junior engineers, and collaborate with finance teams, leveraging their accounting knowledge to enhance automation and reconciliation processes.

Design, implement, and scale robust Rust services and libraries for trading, payments, and crypto. Build low-latency distributed systems using RPC, Kafka, and event-driven patterns. Write testable, high-performance asynchronous network code, debug across OS/network/application stacks, own systems end-to-end, and mentor other engineers while collaborating with product teams.

Build and deploy end-to-end features across web and backend: implement React/TypeScript frontends, Java/Node.js microservices, integrate GraphQL/REST APIs, run experiments, monitor production, participate in on-call, mentor juniors, and collaborate with product, design, and data.

Design, implement, and maintain scalable brokerage systems and middle/back-office services (gRPC microservices, React admin UI). Lead regional recruitment and reliability, mentor engineers, act as incident commander, collaborate with global teams, troubleshoot issues, and build solutions supporting multi-language/currency markets and regulatory requirements.

The Senior Software Engineer will design, implement, and optimize software solutions, collaborate with stakeholders, lead technical reviews, and ensure quality and performance through best engineering practices.

Lead technical strategy and execution across multiple teams by designing, building, and operating large-scale distributed systems and backend services. Drive cross-functional initiatives from design to production, improve reliability, scalability, observability, and developer productivity, mentor engineers, and apply AI-enabled tools and automation where appropriate. Collaborate with Product, Data, Risk, and business stakeholders and participate in incident response and long-term reliability improvements.

Lead architecture and development of legal tech solutions, act as technical lead with external partners, design data models, resolve complex bugs and performance issues, mentor developers, and drive cross-functional project execution.

Lead design and development of complex software features, translate product requirements into designs, write and review specifications, fix bugs, implement best practices, design data models, collaborate across teams, and stay current with new technologies to support products such as Lexis+ AI.

Design, build, and maintain scalable software components; contribute to architecture decisions; resolve complex bugs and performance issues; review code; apply best practices and TDD; design data models; mentor junior developers; collaborate with stakeholders across Agile, Waterfall, or hybrid environments.