Backend Entwicklung Jobs in Köln

Senior Software Engineer (gn) - GenAI // 100% remote

Easy Apply

workidentity

Freiburg im Breisgau, Baden-Württemberg, Germany, Heidelberg, Baden-Württemberg, Germany, Karlsruhe, Baden-Württemberg, Germany, Mannheim, Baden-Württemberg, Germany, Stuttgart, Baden-Württemberg, Germany, Ingolstadt, Bavaria, Germany, Munich, Bavaria, Germany, Nuremberg, Bavaria, Germany, Peiting, Bavaria, Germany, Würzburg, Bavaria, Germany, Bremen, Bremen, Germany, Frankfurt, Hesse, Germany, Wiesbaden, Hesse, Germany, Brunswick, Lower Saxony, Germany, Hanover, Lower Saxony, Germany, Oldenburg, Lower Saxony, Germany, Wolfsburg, Lower Saxony, Germany, Rostock, Mecklenburg-Vorpommern, Germany, Bielefeld, North Rhine-Westphalia, Germany, Cologne, North Rhine-Westphalia, Germany, Dortmund, North Rhine-Westphalia, Germany, Dusseldorf, North Rhine-Westphalia, Germany, Saarbrücken, Saarland, Germany, Leipzig, Saxony, Germany, Kiel, Schleswig-Holstein, Germany, Lübeck, Schleswig-Holstein, Germany, Berlin, Germany, Hamburg, Germany

Festanstellung

EUR75,000 - EUR85,000

5 months ago

JavaJavaScriptGenAIClaude CodeAI OrchestrationPrompt EngineeringContext EngineeringSoftware ArchitectureQuality AssurancePerformance OptimizationAgileScrumBackend DevelopmentFrontend DevelopmentTechnical Consulting

Software Engineering Consultant (2026/27 Graduate)

Netlight

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

2 months ago

Full-Stack DevelopmentBackend DevelopmentData ScienceData EngineeringCloud SolutionsSoftware ArchitectureWeb DevelopmentArtificial IntelligenceDevOpsSoftware EngineeringGermanEnglish

Backend & Platform Engineer (AI-Native) (m/w/d)

E.ON Deutschland

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

4 weeks ago

KotlinSpring BootAWSCloud-Native ArchitectureRESTGraphQLOpenAPIOAuth 2.0GitLab CI/CDOpenTofuInfrastructure As CodeBackend DevelopmentOperations EngineeringAI-Native EngineeringClaude CodeCodex

GRAS Global Risk Assessment Services GmbH

(Senior) DevOps Engineer with Backend Development

Easy Apply

GRAS Global Risk Assessment Services GmbH

Cologne, North Rhine-Westphalia, Germany

Permanent Employee

Salary not specified

4 months ago

DockerLinuxShell ScriptingAWSGCPCI/CDPythonTerraformAPI DesignBackend ArchitectureISO 27001PostGISGeoPandasGeospatial DataPlatform EngineeringInfrastructure as Code

Senior Backend Engineer - Run & Grow

SumUp

Team +20%

Cologne, North Rhine-Westphalia, Germany

Type not specified

Salary not specified

2 weeks ago

GoBackend engineeringDistributed systemsKafkaAPI designPostgreSQLSnowflakeEvent-driven architectureSystem designObservabilityIncident responseFintechPaymentsData modelingSecurityMentoring

Backend & Platform Engineer (AI-Native) (m/w/d)

E.ON

Cologne, North Rhine-Westphalia, Germany

Type not specified

Salary not specified

4 weeks ago

KotlinSpring BootAWSCloud-native architectureRESTGraphQLOpenAPIOAuth 2.0GitLab CI/CDOpenTofuInfrastructure as CodeAI-Native EngineeringClaude CodeCodexCursorBackend development

(Senior) DevOps Engineer with Backend Development

Easy Apply

ISCC, Meo, 4C, GRAS, ClimatePal & TYC

Team +11%

Cologne, North Rhine-Westphalia, Germany

Permanent Employee

Salary not specified

4 months ago

DockerLinuxShell ScriptingAWSGCPCI/CDPythonTerraformAPI DesignBackend ArchitectureISO 27001PostGISGeoPandasGISInfrastructure as CodeContainerisation

Data & Backend Engineer (f/w/d)

Instaffo

Cologne, North Rhine-Westphalia, Germany

Full-time

EUR74,000 - EUR79,000

3 weeks ago

Data EngineeringData WarehousingDatabase DesignSQLETL/ELT PipelinesRESTful APIsBackend ArchitectureDevOpsCI/CDAzure DevOpsAI Data InfrastructureLLM IntegrationsData QualityData GovernanceCommunicationTeamwork

Data & Backend Engineer (f/m/d)

Inverto | A BCG Company

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

6 months ago

Data EngineeringDatabase DesignAPI DevelopmentDevOpsSQLETLELTAIData GovernanceCI/CDAzure DevOpsBackend ArchitectureData WarehouseData PipelinesTeam CollaborationCommunication

Senior Backend Engineer (all genders)

Easy Apply

envelio

Team +35%

Cologne, North Rhine-Westphalia, Germany, Netherlands

Festanstellung

Salary not specified

6 months ago

PythonFastAPISQLAlchemyCeleryPostgreSQLRabbitMQRedisDockerKubernetesAPI DesignData ModelingBackend DevelopmentEnglish (C1)

Senior Software Engineer Backend API (all genders) Senior Software Engineer Backend API (all genders)

Adesso SE

Karlsruhe, Baden-Württemberg, Germany, Stuttgart, Baden-Württemberg, Germany, Ulm, Baden-Württemberg, Germany, Walldorf, Baden-Württemberg, Germany, Munich, Bavaria, Germany, Nuremberg, Bavaria, Germany, Bremen, Bremen, Germany, Frankfurt, Hesse, Germany, Hanover, Lower Saxony, Germany, Aachen, North Rhine-Westphalia, Germany, Bonn, North Rhine-Westphalia, Germany, Cologne, North Rhine-Westphalia, Germany, Dortmund, North Rhine-Westphalia, Germany, Dusseldorf, North Rhine-Westphalia, Germany, Essen, North Rhine-Westphalia, Germany, Münster, North Rhine-Westphalia, Germany, Paderborn, North Rhine-Westphalia, Germany, Siegen, North Rhine-Westphalia, Germany, Koblenz, Rhineland-Palatinate, Germany, Leipzig, Saxony, Germany, Jena, Thuringia, Germany, Hamburg, Germany

Type not specified

Salary not specified

7 months ago

Java.NETBackend API DevelopmentCI/CDKubernetesCloud ArchitectureContainer ArchitectureAPI ManagementAI ExpertiseGermanEnglish

AI Solution Architect / Senior Engineer Financial Services (w/m/d)

Capgemini

88% recommend

Stuttgart, Baden-Württemberg, Germany, Munich, Bavaria, Germany, Frankfurt, Hesse, Germany, Hanover, Lower Saxony, Germany, Cologne, North Rhine-Westphalia, Germany, Düsseldorf, North Rhine-Westphalia, Germany, Berlin, Germany, Hamburg, Germany

Type not specified

Salary not specified

5 months ago

Generative AIAgentic AILLM APIsRAGPrompt EngineeringSoftware EngineeringBackend DevelopmentAPI DevelopmentMicroservicesAWSAzureGCPDevOpsKubernetesLLMOpsSolution Architecture

Senior AI Platform Engineer (m/w/d)

Easy Apply

Leadvise Reply GmbH

Munich, Bavaria, Germany, Frankfurt, Hesse, Germany, Cologne, North Rhine-Westphalia, Germany, Düsseldorf, North Rhine-Westphalia, Germany, Berlin, Germany, Hamburg, Germany

Full-time

Salary not specified

5 months ago

PythonFastAPIFlaskDockerKubernetesCloud EngineeringPlatform EngineeringBackend DevelopmentAPI DevelopmentOrchestrationModel ManagementObservabilityPerformance OptimizationMLOpsAI WorkloadsInfrastructure

Senior Consultant / Manager Software Engineering & Architektur (m/w/d) in Köln

Deloitte

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

6 days ago

JavaSpring BootQuarkusSoftware EngineeringSoftware ArchitectureSolution ArchitectureBackend DevelopmentCloud ApplicationsPublic CloudGoogle CloudCI/CDContainer TechnologiesSQLDatabasesAPIsAgile Project Delivery

Engineering Lead (d/f/m)

paymenttools

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

1 day ago

People LeadershipCoaching and MentoringPerformance ManagementDelegationSoftware EngineeringBackend SystemsDistributed SystemsDelivery PlanningStakeholder ManagementTechnical Decision-MakingTestingMonitoringOperational ReliabilityIncident ManagementPayment SystemsCross-Functional Collaboration

Full Stack Developer (AI SaaS)

Clera

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

3 weeks ago

NestJSTypeScriptMongoDBLarge Language ModelsAISaaSAPI IntegrationBackend DevelopmentGerman Language

AI Solution Architect / Senior AI Engineer (w/m/d)

Capgemini

88% recommend

Stuttgart, Baden-Württemberg, Germany, Munich, Bavaria, Germany, Frankfurt, Hesse, Germany, Hanover, Lower Saxony, Germany, Cologne, North Rhine-Westphalia, Germany, Düsseldorf, North Rhine-Westphalia, Germany, Berlin, Germany, Hamburg, Germany

Type not specified

Salary not specified

3 months ago

Generative AIAgentic AICloud platformsSoftware engineeringBackend developmentAPI developmentMicroservicesDistributed systemsAWSAzureGCPDevOpsCI/CDKubernetesLLMOpsRAG

Senior Backend Product Engineer (Elixir)

Tellent

Cologne, North Rhine-Westphalia, Germany

Full-time

EUR69,000 - EUR85,000

2 months ago

ElixirBackend DevelopmentTypeScriptMastraArtificial IntelligenceLarge Language ModelsProduct ThinkingFull-Stack DevelopmentFeature OwnershipTestingScalabilityReliabilityMaintainabilityTechnical Decision-MakingCommunicationMentoring

Staff Fullstack Engineer, Retail (m/f/d)

Redcare Pharmacy

Team +15%

Cologne, North Rhine-Westphalia, Germany

Full-time

Salary not specified

3 weeks ago

ReactTypeScriptFrontend EngineeringBackend DevelopmentJavaSystem ArchitectureDistributed SystemsTechnical LeadershipCross-Team CollaborationMentoringProduct JudgmentCheckout SystemsE-CommercePaymentsAPI DevelopmentNative Mobile Development

Test Automation Engineer Payments (w/m/d)

Capgemini

88% recommend

Stuttgart, Baden-Württemberg, Germany, Munich, Bavaria, Germany, Frankfurt, Hesse, Germany, Hanover, Lower Saxony, Germany, Cologne, North Rhine-Westphalia, Germany, Dortmund, North Rhine-Westphalia, Germany, Düsseldorf, North Rhine-Westphalia, Germany, Berlin, Germany, Hamburg, Germany

Type not specified

Salary not specified

3 weeks ago

Test automationSeleniumJavaCucumberToscaPlaywrightISO 20022Instant paymentsClearing and settlementCross-border paymentsPCI complianceEMVFraud preventionAPI testingBackend testingQuality engineering

Backend Entwicklung Jobs in Köln

Offene Stellen

Senior Software Engineer (gn) - GenAI // 100% remote

Software Engineering Consultant (2026/27 Graduate)

Backend & Platform Engineer (AI-Native) (m/w/d)

(Senior) DevOps Engineer with Backend Development

Senior Backend Engineer - Run & Grow

Backend & Platform Engineer (AI-Native) (m/w/d)

(Senior) DevOps Engineer with Backend Development

Data & Backend Engineer (f/w/d)

Data & Backend Engineer (f/m/d)

Senior Backend Engineer (all genders)

Senior Software Engineer Backend API (all genders) Senior Software Engineer Backend API (all genders)

AI Solution Architect / Senior Engineer Financial Services (w/m/d)

Senior AI Platform Engineer (m/w/d)

Senior Consultant / Manager Software Engineering & Architektur (m/w/d) in Köln

Engineering Lead (d/f/m)

Full Stack Developer (AI SaaS)

AI Solution Architect / Senior AI Engineer (w/m/d)

Senior Backend Product Engineer (Elixir)

Staff Fullstack Engineer, Retail (m/f/d)

Test Automation Engineer Payments (w/m/d)

Senior Software Engineer (gn) - GenAI // 100% remote

Key Skills

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