Backend Engineer Mid

Hands-on Principal Full-Stack Engineer role building a next-generation multi-tenant SaaS using C#, .NET, Entity Framework, Angular, SQL Server/PostgreSQL, and AWS. Responsibilities include end-to-end feature delivery, designing architectures (DDD, CQRS, event-driven, BFF), leveraging AI coding assistants, mentoring engineers, and applying modern DevOps and testing practices. Requires 10+ years of professional software engineering experience.

Lead end-to-end development of a scalable, secure multi-tenant SaaS product using .NET, Angular, SQL Server/PostgreSQL, and AWS. Responsibilities include architecture and design (DDD, CQRS, event-driven patterns), delivering frontend and backend features, mentoring engineers, implementing automated testing and CI/CD, and leveraging AI-assisted coding tools to accelerate delivery.

Hiring for a Senior Android Engineer responsible for designing and implementing scalable Android architectures, leading/semi-senior and junior developers, performing code reviews, collaborating with Product/Design/QA, and improving code quality and delivery. Requires 5+ years Android development experience, Kotlin expertise, knowledge of design and architectural patterns, Git/Gitflow, SCRUM/agile, CI/CD tools, testing, concurrency, SQLite and performance tooling. English intermediate (B1-B2) is desirable.

Twilio is hiring a Staff Engineer, Security Engineering Partners to bridge security and engineering teams by designing and implementing scalable security solutions, leading security reviews, driving risk reduction, and mentoring engineers. Required: 8+ years in security engineering (application/cloud/product security), threat modeling, experience using LLMs in security solutions, strong software development skills (Python required; Go/Java a plus), CI/CD and IaC familiarity, and working knowledge of containers and AWS. Role is remote for candidates based in Canada (Ontario, British Columbia or Alberta) and may require occasional travel.

Lead Veeva's Managed Services delivery and act as the local cultural/administrative representative in Poland. Responsibilities include hiring and people management for the Poland Managed Services team, resource and capacity planning, performance management, collaborating with Professional Services teams, and serving as escalation/delivery lead on strategic accounts. Role is fully remote in Poland, requires up to 15% travel across EMEA, 10+ years of IT consulting experience and 5+ years managing a billable services team of at least 30 people. Total compensation advertised: 240,000–380,000 PLN.

Hands-on contract role (100% remote) to design, build and implement security-focused platform capabilities for a cloud-native payments system. Responsibilities include implementing API security, cryptographic controls, AI governance, software supply chain security, CI/CD automation and observability using technologies such as Go, Kubernetes, AWS/GCP/Azure, CockroachDB, NATS, Vault, Terraform and SecDevOps practices. Contractors must be based in one of the listed European countries; all contractors start their first day in-office to collect equipment.

Build and optimize RL post-training infrastructure that scales from single-GPU experiments to production across thousands of nodes. Work includes tuning training-inference-rollout loops on GPUs/CPUs/LPUs, contributing to open-source RL frameworks (e.g., VeRL, Miles, TorchTitan), ensuring fault tolerance and elastic scaling, and collaborating with cross-functional teams on networking, libraries, and hardware integration.

Role to develop and optimize PyTorch components that run on large GPU clusters, collaborate with NVIDIA hardware/software teams and the PyTorch community, and support production AI solutions. Requires BS in CS/Engineering or equivalent, 3+ years in deep learning, strong C++, distributed/threaded programming and systems software experience. US-based (hybrid/remote) position with a specified annual salary range.

Build and ship internal tools, automations and AI-driven platforms (web apps to distributed async job systems). Requires 5+ years building end-to-end web applications, experience with Go and HTMX (plus Python), hands-on knowledge of LLMs, RAG (e.g., pgvector), LangChain, model routing and prompt engineering, and experience shipping AI features to production. Role includes stakeholder discovery, designing reliable distributed architectures, mentoring, and full ownership from scoping to production.

Cribl is hiring a Staff Software Engineer to work remotely (US) on cloud infrastructure and telemetry products. Responsibilities include designing, building, and operating scalable, highly-available systems and tools (including Terraform and Azure), improving service reliability, automating toil, and participating in on-call rotation. Required experience includes JavaScript/Node.js/TypeScript development, Linux-based deployments, and public cloud infrastructure.