--- title: 'Hackers wanted – Senior Software Engineer at freiheit.com technologies' canonical: 'https://feeny.ai/job/hackers-wanted-senior-software-engineer-freiheit-com-technologies-lisbon-6wq6xkcbeyh3' type: 'job' last_seen: '2026-09-11' --- # Hackers wanted – Senior Software Engineer at freiheit.com technologies - **Company:** freiheit.com technologies - **Location:** Lisbon, Portugal - **Employment:** full-time - **Work type:** onsite - **Posted:** 2020-06-18 - **Last confirmed live:** 2026-09-11 - **Apply:** https://jobs.lever.co/freiheit-2/8edd3ac5-cf10-4dfe-927b-8e7c31f78d9d ## Job description ## ABOUT OUR COMPANY We are an engineering organization. Our mission is to “Ship great software” and build custom, large-scale software platforms on time, on budget and on target. In over two decades, we have never failed to deliver what we promised. 85% of our members are software engineers with a background in computer science, physics or mathematics, many also with a strong background in machine learning. freiheit.com technologies was founded in Hamburg in the midst of the first internet boom in the last millennium in 1999. Since then, we’ve been building custom software platforms and helping our clients to create their future business models based on software. For over a quarter of a century, we have been working for the "Who's Who" of German and European industrial and commercial companies. Retail, automotive, e-commerce, healthcare and more. Our large-scale software platforms are used by millions of users every day. Each product has a business-critical, strategic relevance for our customers. We have a team of 250+ employees from 30+ nations in our engineering hubs in Hamburg and Lisbon. We make “mission impossible” possible and very often create things that no one has ever built before. Our teams work data-driven to constantly optimize their own productivity by removing friction from their work. Each member takes on end-to-end responsibility for their work. To be successful, you need to be productive. To be productive, you need to be efficient and effective. Technology never rests. Neither do we. ## ABOUT YOUR JOB - You start in one of our engineering teams. Team size is maximum five people. - You will receive a lot of introductory training in the first weeks about the technologies you are going to use in your project. - The trainings are conducted by software engineers from our own company. - You are involved in every part of the software engineering process and in the lifecycle of the services that your team is building - design, development, testing, deployment, maintenance, operations and improving software based on user feedback and usage data. - You work closely with our customers to iteratively improve their product offering by conceiving, refining and delivering new ideas. ## ABOUT YOU Qualifications: - Bachelor’s degree in Computer Science or related fields like Mathematics or Physics - Experience in C/C++, Python or Java - Ability to learn fast - Algorithms and data structures, understanding time & space complexity - 5+ years of experience as a software engineer (writing code every day) - Worked in teams of at least five members - Delivered 2-3 projects from first line of code to production launch - Stayed on at least 1-2 years in each team/project - High influence on the technical success of their past projects Bonus skills or interests: - Master or PhD in Computer Science or related fields like Mathematics or Physics - Experience in Go, Kotlin, TypeScript or JavaScript - Experience in front end development, like ReactJS, Angular, Vue or Flutter/Dart - Functional programming with Common Lisp, Clojure or Haskell - Experience working with distributed systems in the Cloud - Experience in Machine Learning and Data Science - Competitive Programming ## ABOUT OUR COMMUNITY If you ask anyone why they work here, it's pretty likely that they will say “because of the people” and “because I've never learned so much in my life”. We believe that productive people are happy people. In our engineering hubs in Hamburg and Lisbon, you will meet smart, nice, ambitious people from all over the world. Becoming a well-rounded professional in your field of expertise is a long journey that takes many years of hard work and learning. Our company is the best place to become that person. Being a member of our company will ask a lot of you and no one can do the work for you. We will set high expectations for you and provide you with the skills and successful behaviors needed to meet them. Here you have the opportunity to work with intelligent people on interesting tasks and complete projects from idea to operations - end to end. Our company is a place where you can become the best version of yourself. DO YOU WANT TO BE PART OF OUR TEAM? Then send us your complete application documents (curriculum vitae and references) via our application portal. And if you have any questions about your application or the application process, Bianca Mioc is available to you personally on +49 40/890584-0. Privacy policy ## About freiheit.com technologies ## Company Overview - **One-liner**: A custom software engineering company that builds large-scale, business-critical software platforms for enterprises. - **Entity Type**: Private (bootstrapped) - **Headquarters**: Hamburg, Germany (with a second engineering hub in Lisbon, Portugal) - **Founded**: 1999 - **Founders**: Two founders (names not publicly disclosed) ## Core Business - **Primary industry**: Software Engineering / Custom Software Development - **Target customers**: B2B, large enterprises across retail, healthcare, mobility, logistics, and other industries - **Mission or purpose**: To build scalable, long-lasting software systems that are business-critical for clients, delivered on time, on budget, on target, and on quality. ## Products & Services - **Custom Large-Scale Software Platforms**: End-to-end development of new digital business models (e-commerce, marketplaces, IoT platforms) or replacement of legacy systems with no downtime. - **Legacy System Modernization**: Replacing old, outdated systems while they remain in production. - **Business Process Efficiency Software**: Custom internal workflow applications, often leveraging AI for automation or intelligence amplification. - **Big Data & Cloud Migrations**: Data engineering, data warehouse migrations (e.g., from Teradata to cloud), and real-time data processing systems. - **AI & Machine Learning Platforms**: Building decision support systems and AI agents (e.g., their own planning platform “Revolution” fed by their internal knowledge base). ## Market Standing - **Valuation/Market Cap**: Not publicly available (private, bootstrapped) - **Key Metric**: Headcount of 300+ employees (as of 2026); LinkedIn reports ~216 employees with +18.7% yearly growth and +1.5% monthly growth. - **Notable Investors/Partners**: None disclosed (bootstrapped, no external funding) - **Growth Signals**: Consistent headcount growth; established presence in two European hubs; long-term client relationships spanning 25+ years; adoption of AI agents to increase engineering efficiency. ## Competitive Advantages - **Engineering-Driven Culture**: 85% of members are engineers (CS, physics, math backgrounds, many with PhDs). Minimal management – engineers own projects end-to-end. - **Proven Track Record**: 25+ years delivering large-scale systems for enterprise clients across multiple industries and continents. - **Knowledge Base & AI Augmentation**: Decades of internal best practices codified in a knowledge base, now used to train AI agents on their “Revolution” planning platform – increasing speed and quality. - **Lean & Iterative Approach**: “Agile” before it was a buzzword; daily increments, simplicity, and focus on delivery. ## Strategic Focus - **AI Integration**: Feeding internal knowledge into AI agents to automate repetitive tasks and allow engineers to focus on cognitively challenging work. - **Continuous Knowledge Sharing**: Maintaining and expanding a company-wide knowledge base via RFC processes and engineering task forces. - **Scaling Engineering Talent**: Growing both hubs (Hamburg and Lisbon) while preserving the same organizational principles and team structures. ## Why Work Here - **Culture**: Engineer-first, flat hierarchy, end-to-end ownership, and a strong emphasis on learning and knowledge sharing. - **Work Model**: On-site in Hamburg or Lisbon (both hubs are physical offices; remote work not mentioned). - **Perks**: Opportunity to work on challenging, large-scale projects; daily collaboration with highly skilled peers; access to a vast internal knowledge base; AI tools to enhance productivity. - **Engineering Environment**: Small, efficient teams; no unnecessary management; focus on simplicity and quality. ## Sources 1. [freiheit.com](https://freiheit.com/) 2. [freiheit.com – What we do](https://freiheit.com/what-we-do/) 3. [freiheit.com – Join us](https://freiheit.com/join-us/) 4. [LinkedIn – freiheit.com technologies](https://linkedin.com/company/freiheit-com-technologies) 5. [Jobs at freiheit.com (Lever)](https://jobs.lever.co/freiheit-2) ## Other roles at freiheit.com technologies - [Senior IT Projekt Manager](https://feeny.ai/job/senior-it-projekt-manager-freiheit-com-technologies-hamburg-kny1eszd7ga5) — Hamburg, Germany - [Recruiter](https://feeny.ai/job/recruiter-freiheit-com-technologies-hamburg-rbt15bhyvfv0) — Hamburg, Germany - [Commercial Associate](https://feeny.ai/job/commercial-associate-freiheit-com-technologies-hamburg-q579ws0h6v2f) — Hamburg, Germany - [Commercial Manager](https://feeny.ai/job/commercial-manager-freiheit-com-technologies-hamburg-y26zh7zse835) — Hamburg, Germany - [Hackers wanted – Software Engineers](https://feeny.ai/job/hackers-wanted-software-engineers-freiheit-com-technologies-lisbon-nkaydn9yb66n) — Lisbon, Portugal - [Hackers wanted – Senior Software Engineer](https://feeny.ai/job/hackers-wanted-senior-software-engineer-freiheit-com-technologies-hamburg-y4s70cs27fhn) — Hamburg, Germany - [Hackers wanted – Software Engineers](https://feeny.ai/job/hackers-wanted-software-engineers-freiheit-com-technologies-hamburg-m69hc1r4rc6w) — Hamburg, Germany