Top Software Engineer Jobs in Seville

As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.

As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.

As a Senior Blockchain Engineer, you will design and optimize smart contracts and blockchain infrastructure, collaborate with teams to ensure secure solutions, and lead development efforts in the DeFi ecosystem. You will analyze technologies, mentor staff, and enhance performance while maintaining security best practices.

The role involves designing and implementing Python services and AI solutions, leading technical engagements, and mentoring engineers. Responsibilities include production-level coding, architecture decisions, and client interaction.

Design, build, and optimize high-performance, scalable backend services. Work with event-driven architectures and streaming, ensure reliability under high concurrency, use observability and profiling tools, collaborate cross-functionally, own core components, review and mentor, and drive architecture and system improvements.

Build and operate geo-localized, multi-region backend services focusing on data residency, reliability, scalability, and privacy. Design and implement features, participate in architecture, work with event-driven systems, contribute to observability and CI/CD, and mentor peers while owning core components.

Responsible for building scalable distributed systems, mentoring teammates, innovating on technical solutions, and improving team processes. Requires expertise in backend languages, especially Golang and Typescript.

The Principal Software Engineer will design scalable backend services, implement AI integration, mentor peers, and enhance team workflows within an Agile environment.

Support community-driven development by reviewing community PRs, improving contribution processes, debugging issues, and enhancing documentation. Collaborate with contributors and maintainers for reliable product improvements.

Join Reedsy to develop and improve a collaborative word processor, adding features and ensuring performance and security for users.

Lead design and implementation of an automation platform to orchestrate package creation, test generation, and image builds. Build LLM-integrated tooling, write production Go for CLIs and services, develop test generators and validation frameworks, and drive roadmap and engineering quality across a small team.

As a Senior Software Engineer at Rewardful, you'll improve infrastructure, optimize performance, implement scalable solutions, and develop new features for our SaaS affiliate management platform.

Senior Software Engineer to design and implement C++/Python software, accelerate workloads with CUDA, develop and maintain Linux kernel modules and system services, optimize system and GPU performance, manage Linux systems, mentor junior engineers, and integrate AI technologies across products.

Lead design and improvements for Elasticsearch distributed systems, focusing on scalable, performant, and resilient indexing, cluster coordination, replication, and debugging of concurrency and performance issues. Own projects end-to-end and support cross-team engineering and support staff.

Build core components of a diagnostic and personalization platform: backend data pipelines, frontends, services for genomic data ingestion, ML model integration, APIs, and cloud infrastructure. Collaborate with product and ML teams, iterate on prototypes and MVPs, and make architectural decisions supporting scalability and reliability.

Design and build the on-prem software stack for ModelVault appliances: containerized inference engines, model integration (LLMs/vision), deployment tooling, CLIs/GUI/APIs, OS and GPU setup, remote updates, telemetry, and collaborate with customers and founding team to iterate and scale the engineering org.

Develop and enhance MAAS core components, improve architecture, collaborate across teams, and ensure high standards in documentation and CI practices.

As a Staff Unity Client Engineer, you will own game features and collaborate across teams for high-quality game client development, focusing on full lifecycle responsibilities.

The role involves improving Firefox development workflows, mentoring team members, collaborating across teams, and analyzing development data.

Design and implement core Web3 protocol features and secure smart contracts in Solidity. Integrate blockchain solutions with cross-functional teams, ensure scalability and performance, stay current on EVM internals, conduct code reviews, and mentor junior engineers.

Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.

Design and build key features for an AI coding platform, focusing on user experience and product growth in a collaborative environment.

Be the hands-on technical owner of the LiteAPI product: design, implement, and operate backend/API infrastructure, lead technical decisions, work closely with product, stakeholders, and customers, and mentor engineers while shipping high-impact features in a fast-moving startup.

Design, develop, and maintain Python and Go microservices for data ingestion and processing; integrate backend services with BigQuery and cloud data platforms; implement REST APIs; build scalable data processing pipelines using Apache Beam and Dataflow; test and troubleshoot distributed systems; review designs, estimate work, mentor junior developers, and drive performance and reliability improvements.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.