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JJACOB
Karlsruhe, Germany9 months ago
Grade
Middle
Experience
from 2 years
Work format
Hybrid
English level
B2, upper-intermediate
An email or a Telegram message to the recruiter
In the world of IT retail, we are breaking new ground: the largest selection, personal advice, and deep expertise in solutions – all from a single source. We work with over 300 employees across Germany and operate one of the largest online shops in Germany. Our extensive manufacturer portfolio and our combined know-how ensure that we can always offer the right solution for individual needs. Since its founding in 1990, JACOB has come a long way: over the decades, we have grown from a local store in Karlsruhe into a significant IT service provider for companies. Our strong commitment to constantly seeking innovative approaches has made this development possible. And we carry this creativity combined with professional competence into the future. We want to grow further while preserving what makes us unique. Will you go this path with us?
AI-First Software Engineer (m/f/d) Speed instead of rituals: Requirements are implemented in days. We consistently work towards this. Functionality instead of polish: 90% functionality and a working product are better than 100% perfect code in code review. Designer instead of coder: AI generates. You understand what it does, design systems around it, and evaluate quality. Few meetings: clear responsibility, short paths, no PO/PM theater.
who uses Claude (or comparable models) as a central engine for software development – and who also possesses sufficient classic programming craft to critically evaluate AI output.
You use Claude (and comparable models) as the standard for code, tests, and documentation. You transform functional requirements into precise prompts and orchestrate complete solutions from them – APIs, services, integrations, automations. You bring AI-generated code to production level: tests, security, maintainability, architecture. You develop in C#, Go, or PHP/Symfony – depending on the context. You create reusable prompt structures, workflows, and AI templates for our engineering and e-commerce applications. You collaborate closely with functional departments and regularly deliver products.
You have a completed university degree in computer science, mathematics, or a comparable technical degree. You have at least 2 years of hands-on experience in software development, with a significant portion written by hand. You can tell good code from bad – because you've written it yourself. You have solid experience with at least one of our languages (C#, Go, PHP/Symfony). You have real project experience with Claude Code, Codex, Cursor, or comparable tools – not just demo tutorials. You have basic knowledge of software architecture, APIs, and relational databases (MySQL/MSSQL). You have experience with Docker and first steps in CI/CD. You can critically evaluate AI output and troubleshoot independently. You are fluent in German (minimum B2) and have good command of English. You enjoy working onsite in Karlsruhe (2 days a week on-site required).
What sets you apart as a personality: You want to complete things and see them in production – not endlessly refine them. You are curious about AI as a way of working and want to consistently integrate it into your daily routine. You constructively question processes without making them an end in themselves. You take responsibility for your tasks, rather than breaking them down. You see legacy code as a starting point, not an excuse.
Experience in e-commerce. Experience with Klaviyo, CDP, marketing automation. Kubernetes, AWS, Terraform, Camunda/BPMN, xUnit.net
At JACOB, a modern work environment awaits you that gives you the freedom for your own ideas and new challenges. This means specifically: You receive our benefits: employee discounts on our huge product selection, JobRad, company pension plan, work glasses, free drinks, and Ticket-Restaurant. Of course, you receive modern IT hardware for your work. The reality of development where AI is actually the standard – not an innovation project. High degree of freedom in architecture, tools, and processes. Direct access to management and all functional departments. Our People Development supports you in developing in your role and as a person. Direct address (using "Du") is part of our culture: from the start – from the interview to communication with management. Cold start? – We don't have that. You will be well-prepared, and your colleagues will intensively support you in familiarizing yourself with your diverse and interesting tasks.
In the world of IT retail, we are breaking new ground: the largest selection, personal advice, and deep expertise in solutions – all from a single source. We work with over 300 employees across Germany and operate one of the largest online shops in Germany. Our extensive manufacturer portfolio and our combined know-how ensure that we can always offer the right solution for individual needs. Since its founding in 1990, JACOB has come a long way: over the decades, we have grown from a local store in Karlsruhe into a significant IT service provider for companies. Our strong commitment to constantly seeking innovative approaches has made this development possible. And we carry this creativity combined with professional competence into the future. We want to grow further while preserving what makes us unique. Will you go this path with us?
AI-First Software Engineer (m/f/d) who uses Claude (or comparable models) as a central engine for software development – and who also possesses sufficient classic programming craft to critically evaluate AI output.
You use Claude (and comparable models) as the standard for code, tests, and documentation. You transform functional requirements into precise prompts and orchestrate complete solutions from them – APIs, services, integrations, automations. You bring AI-generated code to production level: tests, security, maintainability, architecture. You develop in C#, Go, or PHP/Symfony – depending on the context. You create reusable prompt structures, workflows, and AI templates for our engineering and e-commerce applications. You collaborate closely with functional departments and regularly deliver products.
What skills you should bring: You have a completed university degree in computer science, mathematics, or a comparable technical degree. You have at least 2 years of hands-on experience in software development, with a significant portion written by hand. You can tell good code from bad – because you've written it yourself. You have solid experience with at least one of our languages (C#, Go, PHP/Symfony). You have real project experience with Claude Code, Codex, Cursor, or comparable tools – not just demo tutorials. You have basic knowledge of software architecture, APIs, and relational databases (MySQL/MSSQL). You have experience with Docker and first steps in CI/CD. You can critically evaluate AI output and troubleshoot independently. You are fluent in German (minimum B2) and have good command of English. You enjoy working onsite in Karlsruhe (2 days a week on-site required).
What sets you apart as a personality: You want to complete things and see them in production – not endlessly refine them. You are curious about AI as a way of working and want to consistently integrate it into your daily routine. You constructively question processes without making them an end in themselves. You take responsibility for your tasks, rather than breaking them down. You see legacy code as a starting point, not an excuse.
Desirable: Experience in e-commerce. Experience with Klaviyo, CDP, marketing automation. Kubernetes, AWS, Terraform, Camunda/BPMN, xUnit.net
At JACOB, a modern work environment awaits you that gives you the freedom for your own ideas and new challenges. This means specifically: You receive our benefits: employee discounts on our huge product selection, JobRad, company pension plan, work glasses, free drinks, and Ticket-Restaurant. Of course, you receive modern IT hardware for your work. The reality of development where AI is actually the standard – not an innovation project. High degree of freedom in architecture, tools, and processes. Direct access to management and all functional departments. Our People Development supports you in developing in your role and as a person. Direct address (using "Du") is part of our culture: from the start – from the interview to communication with management. Cold start? – We don't have that. You will be well-prepared, and your colleagues will intensively support you in familiarizing yourself with your diverse and interesting tasks.
Then send us your documents (CV, salary expectations, earliest possible start date) and 3-5 sentences about the last real project you implemented with Claude Code (or comparable coding agents) – what worked, what didn't, and what you learned from it. Better honest than embellished.
Questions in advance? Erwin Kurtic from People & Talent is available for this at 0721/94176-2700.
Speed instead of rituals: Requirements are implemented in days. We consistently work towards this. Functionality instead of polish: 90% functionality and a working product are better than 100% perfect code in code review. Designer instead of coder: AI generates. You understand what it does, design systems around it, and evaluate quality. Few meetings: clear responsibility, short paths, no PO/PM theater.
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