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Senior Flight Software Engineer at Varda Space develops reliable C++ flight software (bare metal, RTOS, or Linux) that governs how the spacecraft, satellite bus, and reentry capsule operate, owning the full lifecycle from requirements capture through testing, V&V, and flight operational support. On-site in El Segundo, CA.
A global travel technology company is hiring a Senior Java Software Engineer for its SaaS cloud-based backend team, on-site in Warsaw. The work centers on building scalable, high-performance features with Java, Spring Boot, JPA/Hibernate, microservices, and MySQL/DynamoDB, plus API development and integration.
Senior Backend Engineer shaping a brand-new telemetry and analytics platform from day one — designing performant Node.js REST APIs on PostgreSQL, gathering requirements from internal clients, and building prototypes. Hybrid role in Kraków (2 days/week in office); Go and AI/agentic experience are pluses.
Senior Java developer building and maintaining microservices for a financial-sector client's trading platform (credit and IR derivatives). Hybrid role in Kraków (2 days office, 3 remote) using Java, REST APIs, microservices, SQL (PostgreSQL/Sybase), with day-to-day use of AI tooling.
Builds an enterprise browser that unifies AI enablement, network access, data protection, identity, and endpoint control into a secure, Chromium-based workspace for large organizations.
A mid-level systems engineer at a Rochester, NY MSP acting as a versatile 'jack of all trades': configuring firewalls/switches, deploying Windows Server and virtualized servers, administering Microsoft 365/EntraID/Intune, running backups and cloud migrations, and providing escalated client support on hybrid onsite/remote engagements.
A senior Java developer at RippleHire who designs, develops and implements complex applications, provides technical direction and system architecture for initiatives, and may lead project teams—all without direct reports. Core technology is Java, working independently with minimal supervision.
Designs, develops, and supports Microsoft SQL Server database solutions across production and development environments for a payments/fintech company — writing T-SQL, stored procedures, and ETL pipelines, tuning performance, and enforcing database security, while mentoring junior staff. Core stack: SQL Server, T-SQL, .NET, Entity Framework, TFS.
Leads a technical team building profiling and optimization tools for the Neuron ML accelerator fleet (Annapurna Labs/AWS), working with hardware and software teams to profile large ML workloads, identify bottlenecks, and deliver automated performance improvement recommendations.
Senior software engineer on AWS's Neuron Collectives team (within Annapurna Labs) optimizing collective operations for AWS Trainium AI training accelerators. The role involves building low-level hardware/software systems that serve as building blocks for EC2 infrastructure powering frontier AI model training.
Senior software engineer on Amazon's Annapurna Labs Graviton team, driving performance optimization for AWS Graviton chips across open-source projects, internal services, and customer applications — spanning Linux kernel development and C++ work to deliver best-in-class price/performance in AWS data centers.
Toshiba Global Commerce Solutions seeks a hands-on Senior Software Engineer in Guadalajara to own end-to-end delivery of retail platform solutions (POS, store operations). Daily work spans coding in Java/Spring Boot, TypeScript, and React/Vue on Azure cloud-native systems, prototyping in Dual-Track Agile, mentoring, and applying AI/agentic tools like Copilot and Claude Code.
12-month contract for a Senior Java Developer in Birmingham (hybrid, multiple UK offices), inside IR35 at £700–£750 per day. The engineer designs, builds and supports digital user-focused services, leads strategy for reusable Java components, and mentors teams using Java, Spring Boot, AWS, Kafka and MongoDB.
An 18-month contract role (hybrid, weekly pay) serving an Australian federal government client: a hands-on CIAM Tech Lead who leads implementation of customer identity and access management solutions while contributing directly to software development. Requires baseline security clearance.
Designs, optimizes, and maintains large-scale MySQL databases and ETL pipelines for an AdTech platform, using Hadoop, Spark, and related big data tools to process and analyze advertising data.
A senior backend engineer role building and maintaining systems in C#, modern .NET and ASP.NET Core. Day to day involves working with APIs, SQL relational databases and large or legacy codebases, including modernisation/migration work, with an interest in AI-assisted development. Based in Hazel Grove, Stockport at £75,000 per year.
Senior full-stack developer role in Holbeck, Leeds: build applications using modern .NET on the back end with Entity Framework for data access, and Angular on the front end (strong React also considered), with cloud development experience — Azure desirable, AWS/GCP relevant.
Senior Python developer on a 12-month hybrid contract in central Glasgow, translating regulatory, risk, and metadata requirements into asset models and governance tooling for a client, using Python, FastAPI, Pydantic, and Collibra.
Senior .NET/C# developer based in Covent Garden, Central London, focused on modernising legacy systems on Azure. Day to day involves building Blazor front ends and REST APIs, and working with App Service/Container Apps, Azure SQL, API Management and Azure DevOps pipelines.
Salary: £130,000 - 143,000 per year Requirements: Strong Linux engineering experience, including system configuration, troubleshooting, diagnostics, and operational support. Solid understanding of distributed systems…
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