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Solaris Experts in Frankfurt

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Hire experts who keep Solaris stable across legacy Unix servers, Oracle Solaris zones, SPARC systems, patching, and incident recovery. Get fast, precise matching with vetted, available freelancers.

Meet FRATCH Experts in Frankfurt, who have recently used Solaris

Verified expert

Mustafa Kederoglu

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Senior Network Design and Engineer

Frankfurt
Mustafa Kederoglu

Last position:

Senior Network Design and Engineer at Helaba

  • Designed and specified the technical network integration of a new business-critical application system (MUREX) in the capital markets area in a complex interface and outsourcing environment.

  • Created component specifications, a catalog of measures and an implementation plan.

  • Ensured proper integration of the developed results in line with the bank’s framework: IT compliance, IT security, change and release management.

  • Selected and integrated a new service provider for the bank; moved critical bank applications to the provider.

  • Designed, implemented and supported the new Cisco network and Fortinet security setup at the service provider data center.

  • Acted as technical interface between the bank, service providers and consulting partners.

  • Supported and further developed the network and security infrastructure (clients, servers, networks); performed error analysis and implemented solutions within agreed service levels.

  • Analyzed and diagnosed all security and network failures, glitches and malfunctions.

  • Initiated continuous improvements to ensure efficient resource use and acceptable response times for users.

  • Provided network support in a financial services organization and prepared operational changes on production banking network infrastructure for both large and small projects within strict change management discipline.

  • Designed, defined, tested, governed and improved engineering standards.

  • Performed the role of network architect for medium to large projects involving team resources.

Verified expert

Minh Doan

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Project Manager / Business Analyst / Application Manager

Bad Vilbel
Minh Doan

Last position:

Project Manager / Business Analyst / Application Manager at Finance and Insurance

  • Introducing 5 different process applications for various teams

  • Release planning: scope and time management

  • Resource/capacity planning

  • Conducting sprint planning / retrospectives

  • Increment planning (multiple sprints)

  • Preparing steering committee meetings / reporting to the executive board

  • Coordinating / aligning with external suppliers / deliveries

  • Multi-project resource planning

  • Aligning with the business unit and development team

  • Identifying best practices with IBM BAW

  • Cost control and planning for the project team and external service providers

  • Collecting KPIs using LogScale

  • Analyzing application errors with LogScale / queries

  • Defining user stories / aligning requirements with the business unit and development team

  • Testing and defect tracking

  • UI/UX design of the application

  • Preparing and facilitating brown-paper workshop

  • Test concept, test data, test organization, test execution

  • Recording team velocity / metrics

  • Executing tests

  • Scripts for automated testing

  • Organizing tests with the business unit and IT

  • Recording and prioritizing defects

  • Setting up and operating the application

  • Setting up application monitoring with LogScale dashboards

  • Checking health endpoints with PowerShell

  • Post mortem analysis

  • Setting up incident management

  • Setting up problem management

  • Analyzing errors using LogScale queries and dashboard

  • Pre-processing data for AI

  • Conducting evaluation with AI language models (Meta Llama 3.3 LLM and deepset Haystack) and RAG

  • Installing runtime environments for LLMs (large language model)

  • Evaluating various LLMs

  • Installing RAG (retrieval augmented generation) and integrating with LLM

  • Extracting unstructured data with LLM and RAG

  • Project based on IBM BAW (Business Automation Workflow), WebSphere Liberty, Domea, d.3, REST, LogScale (formerly Humio), Swagger, PowerShell, JIRA, Confluence, Lucom Interaction Platform (LIP), Mattermost, Jabber

Verified expert

Ulm Paunel

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Freelance IT Specialist

Steinbach (Taunus)
Ulm Paunel

Last position:

DataStage ETL Expert at ING Bank

  • Datastage 11.7, dbt, Oracle 19, Python 3.12 / PySpark 3.5, Azure GitHub, Azure DevOps, Automic
  • Development of migration jobs to transfer data from the collection DWH to the new Risk Mart, as well as development of ETL pipelines to migrate historical data from the old Mart to the new Risk Mart.
  • Storage of the silver layer on Hadoop and the gold layer in Oracle.
  • Translation of DataStage jobs into dbt to publish reporting data in Google Cloud to a PostgreSQL database.
  • Creation and optimization of complex SQL queries for data extraction from a data vault, taking into account historical data in the point-in-time tables.
  • Creation of Oracle table definitions (DDL) and adjustment of existing stored procedures.
  • Versioning changes in GitHub and deployment via the CI/CD portal.
  • Refactoring long-running DataStage jobs into Python using PySpark to reduce server load.
  • Migration of SAS scripts to PL/SQL, including new development of distribution functions that have no direct equivalent in Oracle.
  • Development of Automic jobs to run DataStage pipelines and Python scripts (PySpark jobs) that control the population of the SME and institutional risk tables in the Risk Mart and perform business calculations.
  • Participation in the agile process, including creating user stories, estimations, and planning in Azure DevOps.
  • Handling Azure DevOps tickets and close collaboration with testers and business teams for error analysis and resolution.
Verified expert

Jakub Szepietowski

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Oracle Consultant

Kronberg im Taunus
Jakub Szepietowski

Last position:

Oracle Consultant at Airline Sector

  • Microsoft Azure: design, sizing, and capacity analysis including PoC
  • Microsoft Azure: final implementation for migration from on-prem RAC to single instance Data Guard
  • Performance tuning and troubleshooting for crew management systems (pilots and briefings)
  • Design and implementation of a disaster recovery-aware system based on RAC Extended Cluster and Data Guard
  • OEM: Oracle Cloud Control maintenance, installation and upgrades (12.1.0.5 > 13.3 > 13.5)
  • OEM: creating an agent golden image with new RU and security fixes for a full-scale environment
  • OEM agent upgrade
  • OEM: developing custom metric extensions and reports
  • OEM: full monitoring setup with template collection and monitoring templates and incident rule configuration
  • Upgrades: GI from 11.2.0.4 to 12.1.0.2, to 18.4, to 19.6+
  • Upgrades: databases from 11.2.0.2 to 12.1.0.2, to 19.18+
  • Redesign and license optimization based on Oracle SE on ODA and DBVisit
  • Design of a virtualized platform based on OLVM and license optimization using hard partitioning
  • Migration of databases from bare metal to OLVM
Verified expert

Andreas Schenk

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Project Management, Development and Test- (Defect-) Management

Offenbach
Andreas Schenk

Last position:

Project Management, Development and Test- (Defect-) Management at safarica.com

  • Creation and implementation of a multilingual, relational MariaDB database to reflect the requirements of a booking system designed for safaris in Africa
  • Testing the front- and backend functionality, registration of clients and suppliers, the editorial system and the payment workflow
  • Defect management and documentation via BugHerd
  • Implementation of an automatic internal deployment of deliveries provided by an external company via bash scripts
  • Coordination of external companies in the function of a project manager (Stakeholder Management)
Verified expert

Jochen Hinrichsen

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Managing Director

Eschborn
Jochen Hinrichsen

Last position:

DevSecOps Expert at DB InfraGO

  • Central build and delivery for 20+ applications, 100+ pipelines/day, 700+ GitLab projects
  • Build pipelines for Go, Java and JavaScript
  • Provisioning of 100+ components
  • Quality assurance via GitLab Code Quality and SonarQube
  • Checks for dependencies, licensing and vulnerabilities
  • Release creation via Jira and ServiceNow
  • SBOM, Supply Chain Security, distroless images
  • PoC GitLab Runner: Nomad vs. Kubernetes
  • Technologies: Artifactory, buildah, GitLab Premium, Go, Gradle, Jenkins, Mend, Podman
Verified expert

Ralf Köster

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Senior Java Developer, Consultant

Frankfurt am Main
Ralf Köster

Last position:

Senior Java Developer, Consultant at Dataport AÖR

  • Maintenance and further development of the Java/Swing-based @rtus FormsEditor
  • Design and development of a graphical formula editor based on Google Blockly to map a project-specific DSL, including parsing and code generation
  • Implementation of pixel-perfect synchronization between editor and print preview to improve user experience
  • Technologies: Java 17/21, Swing, JavaFX, JBoss/Wildfly, JUnit, Mockito, Blockly, JPedal, ICEPDF, Eclipse
Verified expert

Serkan Kaya

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Operation and Maintenance of Oracle Middleware Products

Hanau
Serkan Kaya

Last position:

Operation and Maintenance of Oracle Middleware Products at LBV - Landesamt für Besoldung und Versorgung Baden-Württemberg

  • Patch management
  • Support in database development
  • Installation and upgrades of the following Oracle systems:
  • Oracle Analytics Server (6.4)
  • Oracle Enterprise Manager Fusion Middleware Control
  • Oracle Data Integration Server
  • Oracle BI Administration Tool
  • Oracle WebLogic
Verified expert

Christopher Eshemokhai

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Senior Oracle DBA and WebLogic Administrator, Oracle Business Intelligence for Applications

Eschborn
Christopher Eshemokhai

Last position:

Senior Oracle DBA and WebLogic Administrator, Oracle Business Intelligence for Applications

  • Oracle databases 11g, 12c and 19c RAC
  • Installation, configuration and deployment of Oracle Fusion Middleware 11g & 12c (WebLogic, SOA, Oracle Forms and Report Server, etc., OBIA)
  • Administration of Oracle 11g, 12c, RAC and 19c
  • Applying patches
  • Installation, configuration and deployment of Tomcat
  • Oracle tuning
  • The system includes several production, QA, test & development Oracle databases and WebLogic application servers 11g & 12c
Verified expert

Jörg-Ulrich Hammerbacher

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BigData Engineer

Friedrichsdorf
Jörg-Ulrich Hammerbacher

Last position:

Data flows for health insurance providers

  • Further development and creation of data flows for health insurance providers
  • Data management across various storage systems (DB2, MSSQL, PostgreSQL, S3, custom APIs, ...)
  • Documentation and training
  • Planning and deployment of NiFi 2.x (major upgrade)
  • Integrating Grafana for visualization, monitoring, and alerting
  • Extensive use of the NiFi API to continuously monitor the system and its components

Discover over 15,000 top freelancers

Statistics of experts using Solaris

Aggregated from the professional profiles of matched freelancers.

Experience

28 years (Germany: 30 years)

Position duration

2.6 years (Germany: 3.5 years)

Positions per freelancer

23 (Germany: 21)

Top business areas

Information Technology, Project Management, Business Intelligence

Top industries

Banking and Finance, Information Technology, Transportation

Certification focus areas

Information Technology, Project Management, Business Intelligence

Bachelor's degree or higher

71% (Germany: 75%)

Master's degree or higher

57% (Germany: 43%)

Certifications per freelancer

5 (Germany: 4)

Most common languages

German, English, French

Speak two or more languages

100% (Germany: 98%)

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 2 4 6 8
<€640 €720-​800 €800-​880 €960-​1040 €1040+

The chart shows how the daily rates of freelancers in this technology in Frankfurt are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.

Average rates of experts in Frankfurt using Solaris

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Rate comparison chart
Daily rate avg. 789 €
Germany avg. 781 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 800 €
Germany median 800 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

About the technology

What Solaris is

Solaris is a Unix operating system used on enterprise servers where stability, security, and long support cycles matter. It is still found in environments built around Oracle Solaris and older Sun Solaris installations. Companies hire specialists when the operating system itself is part of the business-critical stack.

Where it is used

  • Core database and application servers
  • Legacy enterprise workloads that still run well on SPARC or x86
  • Systems that need strong process isolation and controlled patching
  • Infrastructure tied to storage, backup, and recovery workflows

Solaris often appears in banks, telecom, public sector, and large internal IT estates. In Frankfurt, it is common where long-lived systems must stay available while the wider platform changes around them.

Tooling and ecosystem

Strong Solaris work goes beyond basic shell access. Specialists should know SMF, ZFS, DTrace, zones, package management, networking, and service recovery, plus how Oracle tools fit around them. They also need solid Bash, ksh, and Unix troubleshooting habits.

When to bring in help

  • A server no longer boots cleanly after a patch
  • An old Solaris release must be stabilized or documented
  • Zones, storage, or network settings need review
  • Migration planning has to respect existing Unix dependencies

Freelance expertise is useful when the in-house team is stronger in modern systems than in Solaris. It is also valuable for short recovery work, audits, upgrades, and transition planning.

What strong specialists do

Good Solaris professionals work methodically. They read logs, isolate service failures, check filesystem health, and verify kernel, storage, and network behavior before making changes. They leave systems easier to support, not just temporarily fixed.

How companies should assess fit

Ask for real experience with the exact Solaris version, the hardware or virtual setup, and the operational task at hand. Look for clear explanations, disciplined change control, and comfort working with legacy Unix environments. For Frankfurt-based teams, remote support is often enough, but on-site help can matter when hardware, storage, or restricted access is involved.

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Frequently asked questions

Key details about Solaris, drawn from the questions we get asked most.

Solaris is used to run stable server workloads, especially where long-lived Unix systems still support core business services. It is common in database hosting, legacy application platforms, and infrastructure that depends on SPARC or Oracle Solaris features such as zones and ZFS.

Solaris is the operating system family many people still mean when they say Sun Solaris or Oracle Solaris. Sun Microsystems originally developed it, and Oracle later continued the product line. In practice, the exact version matters because administration and support details can differ.

Solaris is usually chosen for existing estates, not for most greenfield builds. Linux has a broader modern ecosystem, while Solaris still stands out for certain enterprise features, mature Unix behavior, and continuity with older installations. A specialist can help decide whether to maintain, modernize, or migrate.

A strong Solaris specialist usually brings solid Unix shell skills, networking knowledge, storage troubleshooting, and familiarity with Oracle tooling. Experience with ZFS, SMF, zones, backups, and log analysis is especially useful. For migration work, Linux and scripting knowledge also help.

A Solaris project needs someone who has worked on the exact type of task, not just general Unix theory. Basic maintenance may need a broad operator profile, while patch recovery, zone design, or migration planning calls for deeper platform knowledge. The older and more business-critical the system, the more specific the expertise should be.

Yes, many Solaris tasks can be handled remotely, including troubleshooting, configuration review, documentation, and upgrade planning. On-site work becomes more important when access is restricted, when hardware replacement is involved, or when a data center visit is required. For Frankfurt teams, a mixed setup is often the most practical.

Look for clear explanations of root cause, not just quick fixes. A good Solaris freelancer can describe service management, storage, networking, and patch impacts in plain language and should be comfortable with change windows and rollback planning. Relevant version experience matters more than generic seniority.

Companies bring in Solaris experts for failed patches, unstable services, storage issues, zone configuration, and aging systems that still need to run reliably. They are also useful during audits, documentation work, and migration preparation. In many cases, the goal is to keep a critical system safe while a longer-term plan is developed.

The average hourly rate of freelancers in Frankfurt, Germany who have used Solaris in their recent projects is 99 €, which corresponds to a daily rate of about 789 € based on an 8-hour working day.

Of the freelancers in Frankfurt, Germany who have used Solaris in their recent projects, 71% hold at least a Bachelor's degree and 57% hold at least a Master's degree.

On average, freelancers in Frankfurt, Germany who have used Solaris in their recent projects have 28 years of professional experience, with a single engagement typically lasting around 2.6 years.

The most common languages among freelancers in Frankfurt, Germany who have used Solaris in their recent projects are German (100%), English (100%), and French (18%).

The most common industries among freelancers in Frankfurt, Germany who have used Solaris in their recent projects are Banking and Finance (100%), Information Technology (91%), and Transportation (64%).

The most common business areas among freelancers in Frankfurt, Germany who have used Solaris in their recent projects are Information Technology (100%), Project Management (82%), and Business Intelligence (73%).

Main locations of FRATCH Experts, who have recently used Solaris

Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.

Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg

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