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421 Developer Tools jobs

Open tech roles at companies in developer tools and platforms.

421 jobs

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421 jobs Posted Sort

Senior Backend Engineer (Platform Team)

On-siteEuropeSenior

Senior backend engineer on Kombo's horizontal Platform team, working where application code meets infrastructure: scaling services, fixing Postgres and Node.js performance bottlenecks, running risky migrations, building developer tooling, and handling on-call/incident response. Kombo builds a unified API and data-sync infrastructure for HR tech providers.

API Automation Backbone.js CI/CD Cloud +14 skills

Senior Site Reliability Engineer (all genders)

HybridEuropeSenior

As a Senior Site Reliability Engineer at FACT-Finder, you will ensure the reliability, availability, and scalability of their product-discovery platform during its transition to a Kubernetes-based hybrid cloud. You will define SLOs, lead incident response, automate with GitOps, build observability, and manage capacity across on-premise and cloud environments.

AI Argo CD Ceph Cloud E-commerce +10 skills

Systemadministrator Microsoft 365 (m/w/d)

RemoteEuropeInternship

As a Microsoft 365 System Administrator at InSys AG, you plan, implement, and operate Microsoft 365 collaboration platforms for clients, focusing on Exchange Online, Teams, and SharePoint Online. You handle tickets, advise customers, and support presales, working with Microsoft cloud products like Active Directory and Intune.

Active Directory Intune Microsoft 365 Microsoft Dynamics Microsoft Exchange +2 skills

VoIP System Engineer (m/w/d)

VoIP System Engineer at aconitas, an IT service provider, responsible for maintaining, optimizing and migrating customer VoIP systems based on 3CX, supporting SME and enterprise clients. Requires completed IT training, several years of IT experience (ideally one year in VoIP), and strong German (C1+) and English (B2+) skills.

Systemadministrator (m/w/d)

Systemadministrator role at KeySolution IT focused on Windows system administration, Microsoft Server and Active Directory environments, plus private cloud and Microsoft 365 landscapes. The person advises on and implements IT infrastructure projects, supports greenfield and migration projects, and helps ensure IT security aligned with ISO/IEC 27001.

Active Directory Cloud Microsoft 365

IT-Support 1st & 2nd Level, IT-Benutzerberater/in (m/w/d)

First and second-level IT support role handling incoming fault reports and customer requests via phone and email using a ticket system, installing and configuring hardware/software, monitoring customer IT infrastructure, and maintaining Windows clients. Core technologies include Microsoft Windows and Office plus basic networking (DHCP, IP, TCP/UDP, DNS).

ARX Robotics GmbH

Senior Simulation Platform Engineer, Cloud & Robotics (m/f/d)

HybridEuropeSenior

Builds and operates the cloud and infrastructure backbone for a large-scale robotics simulation platform: distributed job orchestration, Kubernetes/GPU compute, CI/CD integration, and developer-facing APIs and CLI tools that let engineering teams run automated simulation and validation workloads for autonomous robots.

API AWS Azure Backbone.js CI/CD +10 skills

Actionet Review

System Administrator | Req#4314

ActioNet seeks a System Administrator with an active Secret clearance to provide on-site end-user support and maintain secure enterprise IT infrastructure, including software installs, patching, backups, and system monitoring. Requires DoD 8140/8570 IAT Level II certification and US citizenship.

Agile Cloud Customer Retention Cybersecurity DevSecOps +2 skills

IT System Administrator (3rd Level / Cloud Infrastructure), Munich (Hybrid Role)

Third-level IT system administrator and cloud infrastructure engineer for an owner-managed German IT systems integrator, designing and implementing secure cloud and hybrid architectures (Azure, Intune, Defender, Zero Trust) and acting as escalation point for complex incidents across customer projects.

Azure Cisco Meraki Cloud DLP Firewall +17 skills

QA Automation & DevOps Engineer (m/f/x)

QA Automation & DevOps Engineer at Lawo in Rastatt, Germany, designing and automating tests for hardware, firmware and software in professional broadcast audio/video/control products, maintaining test tools and environments, and helping move infrastructure toward containerized cloud (Docker, Kubernetes).

Acceptance Criteria Automation CLI Cloud Confluence +7 skills

DATAGROUP Rhein-Main GmbH

(Senior) System Engineer (all genders) – Microsoft Infrastructure

RemoteEuropeSenior

As a (Senior) System Engineer at DATAGROUP Rhein-Main, you will implement, operate, and develop Microsoft infrastructures for public-sector clients, covering installation, configuration, administration, migration, and project work. Core technologies include Windows Server, Active Directory, GPO, virtualization (VMware vSphere, Hyper-V), and PowerShell automation.

DHCP DNS Group Policy Hyper-V ISO 27001 +5 skills

AIML - Product-Minded Frontend Engineer, Annotation Platform & Agentic UI Experiences

Senior frontend engineer on Apple's central AIML Annotation Platform team, building the React/TypeScript web UI for a complex multi-role data annotation and quality platform used across Apple products. Focus on component architecture, design systems, performance, and agentic/LLM-driven UI patterns.

Accessibility Agentic AI AI API Api Design +20 skills

System Engineer Security (w/m/d)

As a Security System Engineer at Bechtle's Munich/Regensburg IT system house, you advise clients on designing and implementing hybrid IAM/PAM and Microsoft security architectures (Active Directory, Entra ID, Defender, Zero Trust), run vulnerability assessments and security reviews, and derive hardening and tiering concepts. Core technologies: Active Directory, Entra ID, Conditional Access, PIM, Mi

Active Directory Cloud Entra ID ERP Group Policy +7 skills

BASYS Brinova GmbH

Netzwerkadministrator / Network Engineer (m/w/d)

Network administrator/engineer managing and developing customer network environments: configuring, administering and troubleshooting LAN/WAN/WLAN infrastructure, handling 2nd/3rd-level support, and planning and delivering network projects with switches, routers and WLAN solutions from vendors such as Aruba, Cisco, HPE and Juniper.

Cisco Microsoft 365 Sophos TCP/IP VLAN +3 skills

BASYS Brinova GmbH

IT Support Engineer - 2nd/3rd Level (m/w/d)

IT Support Engineer providing 1st/2nd/3rd level support for external customers, handling tickets via phone, email and ticketing system. Troubleshoots Windows client/server, Microsoft 365/Exchange, network and printer issues, manages users and permissions (Active Directory, M365), and maintains documentation and knowledge base while meeting SLAs.

Active Directory Microsoft 365 Service Desk

BASYS Brinova GmbH

IT-Administrator (m/w/d) Onsite

Onsite IT administrator providing 1st and 2nd level support for 4-5 client environments, handling Windows clients and servers, Active Directory, Microsoft 365, networking (DNS, DHCP, VLAN, WLAN), IT security, and workplace setup. Core technologies include Windows 10/11, Windows Server, Active Directory, M365, and ticketing systems.

Active Directory DHCP DNS Firewall Fortinet +12 skills

BASYS Brinova GmbH

IT-Administrator – Endpoint & Monitoring (m/w/d)

IT administrator role focused on operating and developing the NinjaOne RMM platform, building automations and scripts (e.g. PowerShell), optimizing monitoring, alerting and patch management, and standardizing customer environments for an IT service provider.

ITIL Microsoft 365 Patch Management PowerShell Service Desk

Software Python Engineer (GPU Cloud)

Builds Python services and APIs that manage the lifecycle of GPU virtual machines and bare-metal servers on Gcore's cloud, including provisioning, capacity scheduling, OpenStack/Kubernetes integration, and automation of host validation and driver setup. Core stack: Python, OpenStack, Kubernetes, Linux, and GPU hardware tooling.

Ansible API Ceph CI/CD Cloud +17 skills

Systems Engineer

Systems engineer role at KAZIMI owning and maintaining the core mobile library that powers privacy-preserving, first-party data collection for app developers. Work spans protocol design, applied cryptography, adversarial security thinking, and low-level optimization in C/C++ across many mobile platforms and toolchains.

Analytics Android Big Data C++ Cryptography +9 skills

System Engineer

System Engineer role at Broadcom in Regensburg, Germany, focused on optical sensor system design — including Time-of-Flight/LiDAR, spectrometers, and detector technologies. Involves sensor physics modeling, optical/mechanical/firmware integration, system specification, project management, lab characterization, and production process definition.

C++ C# Firmware LiDAR Prototyping +1 skills