Digital

Senior Software Engineer - Contracts.AI

Job ID: 103244
  • Lisbon
  • Wroclaw
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Do you want to work on complex and pressing challenges—the kind that bring together curious, ambitious, and determined leaders who strive to become better every day? If this sounds like you, you’ve come to the right place.

Your Impact

You will be a strong individual contributor to a development team building a high-quality software product. These products are leveraging firm IP to deliver impact to our clients, either during client study or to sustain good practices developed during the engagement. 
You'll be building enterprise-grade B2B software products and platforms for the use of our clients. As part of a development team, you’ll be expected to take the lead in specific technical development components and influence the product design and technical architectures based on your experience. You will use your skills to deliver mature, well-tested software that meets high standards for maintainable, adaptable, scalable and secure software.
You will be an active learner, identifying new cutting-edge libraries, techniques and approaches to solve complex problems, and you'll have the opportunity to use unfamiliar technologies and learn new programming languages to meet technical requirements. You will leverage your strong understanding of key agile engineering practices to model ideal participation within agile teams and contribute to growing and improving our engineering practices.  
You will also contribute code and participate in code reviews, facilitate breaking down user stories into technical tasks, and help manage the process by which code is delivered and its quality. At times, you will need to provide advanced debugging and support for production/live software deployments.  Furthermore, you'll communicate technical and delivery risks to the team and escalate to management when appropriate. 
You'll work with the Ops Tech Enablement team in the biggest functional practice in the firm, focusing on client operations (e.g., supply chain, procurement, product development) improvement and will be in our Lisbon or Wroclaw office.
McKinsey fosters innovation driven by analytics, design thinking, mobile and social by developing new products/services and integrating them into our client work. It is helping to shift our model toward asset-based consulting and is a foundation for –and expands our investment in –our entrepreneurial culture. Through innovative software as a service solution, strategic acquisitions, and a vibrant ecosystem of alliances, we are redefining what it means to work with McKinsey.
Ops Tech Enablement team supports a portfolio of 12 successful assets leveraging benchmarking capabilities, machine learning and data visualization to provide insights on client situations and performance. You will join our community mixing people with business and technical background.

Your Growth

Driving lasting impact and building long-term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture - doing hard things, picking yourself up when you stumble, and having the resilience to try another way forward.
In return for your drive, determination, and curiosity, we'll provide the resources, mentorship, and opportunities you need to become a stronger leader faster than you ever thought possible. Your colleagues—at all levels—will invest deeply in your development, just as much as they invest in delivering exceptional results for clients. Every day, you'll receive apprenticeship, coaching, and exposure that will accelerate your growth in ways you won’t find anywhere else.
When you join us, you will have:
  • Continuous learning: Our learning and apprenticeship culture, backed by structured programs, is all about helping you grow while creating an environment where feedback is clear, actionable, and focused on your development. The real magic happens when you take the input from others to heart and embrace the fast-paced learning experience, owning your journey.
  • A voice that matters: From day one, we value your ideas and contributions. You’ll make a tangible impact by offering innovative ideas and practical solutions, all while upholding our unwavering commitment to ethics and integrity. We not only encourage diverse perspectives, but they are critical in driving us toward the best possible outcomes.
  • Global community: With colleagues across 65+ countries and over 100 different nationalities, our firm’s diversity fuels creativity and helps us come up with the best solutions for our clients. Plus, you’ll have the opportunity to learn from exceptional colleagues with diverse backgrounds and experiences.
  • World-class benefits: On top of a competitive salary (based on your location, experience, and skills), we provide a comprehensive benefits package to enable holistic well-being for you and your family.

Your qualifications and skills

  • 4+ years of experience in Software Engineering
  • Experience with building B2B and enterprise quality products, enabling business capability and objectives through technology
  • Hands-on skills working with relational (SQL) and No-SQL databases; Postgres and MongoDb/CosmosDb experience is a bonus
  • Strong software engineering skills and proficiency in object-oriented programming, functional programming and associated software design patterns.   
  • Experience in Python development is required.
  • Deep experience and proficiency in at least one of the following:  C# (.net), Python, and JavaScript/Typescript. Familiarity and hands-on experience in a second from that list is required.
  • Experience in implementing cloud-native software solutions on AWS, Azure and/or GCP with hands-on experience debugging complex distributed systems using cloud-native observability tooling, experience with cloud-native architecture design a plus
  • Experience in developing software utilizing containers (e.g., Docker / Kubernetes) is preferable.  Experience with serverless (e.g., Lambda, Azure Functions) is a bonus but not required.
  • Experience in engineering practices such as code refactoring, test driven development, design driven development, continuous integration, building highly scalable applications, application security, and building maintainable code
  • Recent experience building software solutions which integrate with GenAI resources, LLMs, or Agentic flows.  Experience in prompt engineering for software development use cases. Experience in implementing GenAI capabilities with cloud-native software using modern frameworks (e.g., langchain, lammaindex) a plus
  • Knowledge of Agile software development process
  • Familiarity with testing frameworks across either C#, Python and or JavaScript; and with continuous integration tools and approaches.
Please review the additional requirements regarding essential job functions of McKinsey colleagues.
Our unwavering commitment to integrity drives everything we do, guiding us to always act in the best interests of our clients, our people, and the communities we serve.
Industries
  • High Tech
Capabilities
  • Technology
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FOR U.S. APPLICANTS: McKinsey & Company is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by applicable law.

FOR NON-U.S. APPLICANTS: McKinsey & Company is an Equal Opportunity employer. For additional details regarding our global EEO policy and diversity initiatives, please visit our McKinsey Careers and Diversity & Inclusion sites.

Job Skill Group - N/A
Job Skill Code - SE3 - Senior Software Engineer I
Function - Technology
Industry - High Tech
Post to LinkedIn - Yes
Posted to LinkedIn Date - Tue Jan 13 00:00:00 GMT 2026
LinkedIn Posting City - Lisbon
LinkedIn Posting State/Province -
LinkedIn Posting Country - Portugal
LinkedIn Job Title - Senior Software Engineer - Contracts.AI
LinkedIn Function - Information Technology
LinkedIn Industry - Computer Software;Information Technology and Services
LinkedIn Seniority Level - Associate