Senior/Staff Software Engineer (d/f/m)

Entrix; München; On-site; EUR 95,000 - 135,000; Full time

Benefits offered by this job

Development budget €3,000 for coach/培训

Health & Sport subsidy

Public transport subsidy

Lunch/dinner vouchers

MacBook/ergonomic setup

Regular team events

Job summary

Entrix in Munich seeks a Senior/Staff Software Engineer to own the technical vision of our optimization platform, guiding data processing, algorithmic logic, and battery operation across teams. You will mentor engineers, drive scalable patterns, and ensure pragmatic delivery in a fast-paced energy-tech environment.

The role emphasizes cross-functional collaboration with Product and Data Science, strong English communication, and a hands-on approach to long-term architectural decisions.

Qualifications

• 5+ years experience in Software Engineering (Backend and algorithmic) in the cloud.
• 2-3 years experience with Python including object-oriented design
• 2+ years experience in onboarding, mentoring and coaching colleagues in junior positions
• Evidence of pragmatic delivery
• Experience working cross-functionally, especially with Product and Data Science teams
• Team player to effectively bring across complex ideas and concepts with an ability to work on solutions individually
• Experience and desire to work in a dynamic, fast-paced environment
• Strategic and analytical thinking, with the ability to zoom out to long-term vision and zoom in to implementation detail
• Full business proficiency in English

Responsibilities

• Drive the technical vision and long-term architectural strategy for our optimization platform end-to-end, across data ingestion and processing, optimization logic, battery control, automated power trading, accounting and settlement
• Lead complex, cross-system initiatives spanning multiple teams and engineering domains, owning design decisions with organization-wide impact
• Mentor senior and junior engineers, elevate engineering capabilities, establish patterns that scale beyond immediate projects
• Define, evangelize, and enforce engineering best practices; lead technical design reviews and coach engineers and data scientists
• Identify and resolve systemic technical issues, debt, and bottlenecks before blockers
• Support onboarding, daily operations, and strategic tasks; act as go-to technical authority for critical decisions
• Implement optimization and trading algorithms with focus on go-lives and long-term platform advancement
• Maintain and improve tech stack, dev environments, and build/integration/monitoring of services

Skills

Backend engineering

Python OO design

Mentoring juniors

Cross-functional collab

English proficiency

Cloud architecture

Tools

AWS

Lambda

ECS

Job description

Short Facts

• Employment Type: Full-Time, indefinite term
• Salary Range: € 95.000 - 135.000 per year gross depending on the seniority level
• Office-first work setup

Join us on our journey

A driven Senior/Staff Software Engineer (d/f/m) with a deep technical understanding of your craft and a strong curiosity to understand the solution space to deliver the best possible solution paired with strong pragmatism and inert need for delivery now and iteratively. You share our vision and values and are committed to our goals.

• Location: Munich, Germany
• Employment Type: Full-Time, indefinite term
• Salary Range: € 95.000 - 135.000 per year gross depending on the seniority level
• Office-first work setup
• Language Requirement: C1 Level English

Your Responsibilities

• Drive the technical vision and long-term architectural strategy for our optimization platform end-to-end, across dimensions such as data ingestion and processing, optimization logic implementation, battery control, automated power trading, accounting and settlement
• Lead complex, cross-system initiatives that span multiple teams and engineering domains, owning design decisions that have organization-wide impact
• Act as a force multiplier: mentor senior and junior engineers alike, elevate the engineering capabilities of the broader team, and establish patterns that scale beyond your immediate projects
• Define, evangelize, and enforce engineering best practices across teams; lead technical design reviews and coach engineers and data scientists on how to design and deliver well-built, maintainable, iterable solutions
• Identify and resolve systemic technical issues, technical debt, and architectural bottlenecks before they become blockers for the organization
• Support colleagues during onboarding, daily operations, and strategic tasks; serve as a go-to technical authority for critical decisions
• Implementation of our optimization and trading algorithms with focus on immediate go-lives as well as strategic, long-term focussed advancement of our platform
• Maintain and improve our tech stack and development environments and build infrastructure, from how services are developed and tested, to how they are built and integrated, to how they are monitored

Your Profile

Mandatory Requirements

• 5+ years experience in Software Engineering (Backend and algorithmic) in the cloud
• 2-3 years experience with Python including object-oriented design
• 2+ years experience in onboarding, mentoring and coaching colleagues in junior positions
• Evidence of pragmatic delivery
• Experience working cross-functionally, especially with Product and Data Science teams
• Team player to effectively bring across complex ideas and concepts with an ability to work on solutions individually
• Experience and desire to work in a dynamic, fast-paced environment
• Strategic and analytical thinking, with the ability to zoom out to long-term vision and zoom in to implementation detail
• Full business proficiency in English

Skills to Set You Apart

• Familiarity with AWS cloud platform, and services like Lambda, ECS, and other core AWS services used to build scalable, reliable backend systems.
• Energy industry experience
• Design thinking/sprint experience

This role may not be a fit for you if…

• You don’t have the habit of defining your own tasks and expect other functions to do them
• You are used to working in clear separate functions (software engineering, data science, product, ...)

Your Benefits

• Competitive Compensation Package: Including salary, benefits and options
• Professional Development: Annual development budget of 3,000 € for coachings, trainings, books, etc.
• Health & Sport Subsidy: Company subsidised sports facilities membership
• Public Transportation Subsidy: Monthly subsidy to your public transport ticket
• Lunch/Dinner Allowance Vouchers: Allowance for meals on working days as digital meal vouchers
• Work Equipment: Mac Book or Windows Laptop and ergonomic workplace
• Regular Team Events: Knowledge Sessions, Afterwork, Sports, Offsites, Halloween, Pride Month, etc.

A Short Note from Your Future Lead

Matt Fei

Manager Software Engineering - Entrix

Hi there!

I’m an engineering leader with 20+ years of software engineering experience across enterprise software, cloud platforms, developer tools, remote desktop, and engineering management. I have worked as an individual contributor, tech lead, and people manager, giving me a strong balance of hands-on technical depth and leadership experience.

Most recently, I led a 13-engineer team at Microsoft, delivering flagship features for Windows 365 and Azure Virtual Desktop, including Windows App, Windows 365 web client, Boot-to-CloudPC, and Windows 365 Switch, while maintaining Remote Desktop clients used by millions of users.

My leadership style focuses on clear ownership, customer impact, pragmatic engineering standards, and growing engineers through trust, feedback, and meaningful challenges.

• At Microsoft(2011 - 2024), I grew from senior software engineer to tech lead and principal engineering manager. Most recently, I built and led a 13-engineer team delivering key Windows 365 and Azure Virtual Desktop experiences, while maintaining Remote Desktop clients used by millions. Earlier, I worked on Azure IoT, ASP.NET, Entity Framework, Linq2Sql, ClickOnce, Visual Studio, open-source projects, and developer experience improvements.
• At Wicresoft(2004 - 2011), I grew from software engineer to engineering lead and senior group manager. I led enterprise software delivery teams, managed Microsoft outsourcing projects with 50+ developers, built new products from the ground up, supported business planning, managed project delivery and margins, and mentored junior engineers.

At Entrix, we believe that our success is built on the strength of our team. We foster a collaborative, forward-thinking environment where everyone can thrive and make a meaningful impact. Having spent over eight years working for Silicon Valley companies, I bring that experience to help shape our innovative culture.

If you're passionate about pioneering technological solutions and eager to be part of a dynamic and international team, I encourage you to explore the opportunities we offer. Together, we can drive innovation and achieve remarkable milestones.

Thank you for considering a future with us. I look forward to the possibility of working together to shape the future of technology,

Matt

Your Contact in our People Team

Your contact person is Carolin Starke ([e-mail])

About Us

We are an energy trader and market leader for trading flexible energy systems in Europe.

Beyond AI-powered trading, Entrix provides innovative solutions for long-term revenue security and grid-supportive battery operation. With our full-service package, we support customers throughout every project phase - from technical design and integration, to continuous optimization, all the way to 24/7 operational support. That includes adapting to changing market conditions and unlocking new revenue opportunities.

Entrix is active in Germany, Poland, Italy, Spain, and Portugal, with offices in Munich, Warsaw, Milan, and Madrid. Since 2022, Entrix has been pioneering battery optimization in Germany by managing one of the country’s first large-scale storage projects - and is now the trusted partner of leading infrastructure players such as Encavis, MEAG (Munich Re), as well as a wide range of local utilities.