QA Lead, Cozero
+ VSOP
Carbon accounting and climate management solution
Be an early applicant
Carbon accounting and climate management solution
21-100 employees
Be an early applicant
+ VSOP
21-100 employees
Company mission
To enable companies to effectively decarbonize and transform their business sustainably in light of financial implications.
Role
Who you are
- Bring 8+ years of experience in Software Engineering with 3+ years in QA/quality engineering
- Are a QA-centric Software Engineer that understands code and architecture
- Are DevOps-first, and have experience embedding QA practices with tools, scripts and frameworks
- Have built QA practices from scratch, or significantly matured them
- Think about quality as data correctness, not just "no bugs" - you've tested systems where wrong output is worse than a crashed page
- Are hands-on with test automation - you write and maintain E2E and integration tests, not just test plans
- Understand async and event-driven systems - you know how to test pipelines where data flows through queues and gets processed asynchronously
- Care about developer experience - the test infrastructure you build is fast, reliable, and something engineers actually want to use
- Can work across the full stack - comfortable validating frontend behavior, API responses, database state, and calculated outputs
- Communicate clearly with both engineers and product - you can explain what's risky about a release and what needs more validation without creating bottlenecks
Desirable
- Experience with TypeScript/Node.js test frameworks (Jest, Playwright, Cypress)
- Familiarity with AWS services from a testing perspective(Lambda, SQS, ECS)
- Experience testing data pipelines, ETL, or analytics systems
- Climate tech, carbon accounting, or compliance-grade data systems
- Series A/B startup experience
What the job involves
- If you want to build QA practices that directly impact how companies measure and reduce their carbon footprint, keep reading
- We are looking for a QA Lead to build and own the quality discipline across our engineering team from the ground up. Your mission is to build test automation, data validation frameworks and quality practices that scale with us
- We need someone who can define what "quality" means for a data-intensive platform, build the testing strategy and tooling to enforce it, and partner with engineers to make quality a habit rather than a gate
- Define and own the testing strategy across the platform - unit, integration, E2E, and data validation testing for a system that spans APIs, async pipelines, and analytics layers
- Build test automation that gives engineers fast, reliable feedback - so quality is caught before production, not after
- Establish data correctness validation - our platform calculates CO2 emissions from raw activity data, and the numbers must be auditable and accurate
- Partner with engineers to embed quality into their development workflow - not as a gate at the end, but as a practice throughout
- Own the QA process for releases - coordinate validation across review environments, define what "ready for production" means, and make sure nothing ships without confidence
- We are not looking for a tester. You’ll create a robust QA framework that supports engineers to test their own work, and embeds testing and automation into our delivery lifecycles, so that manual testing is the fallback mechanism and not the norm
Our take
Conflicts in the 2020s and climate change are challenging energy companies, leading to an unprecedented demand for more commitment to renewable raw materials from all stakeholders. For companies, this means it is now no longer a luxury to save CO2 emissions where possible.
Cozero is a software company that creates products to fit that need. The startup was founded to enable companies to effectively decarbonise and it differentiates itself from competitors by framing these CO2 savings in the language of business - each measure details CO2 saved per Euro invested.
With over 70 enterprise customers, the company's next steps will involve accelerating its international expansion and advance its Climate ERP solution. Having already helped cut Vodafone's media carbon footprint by a third, the company is well set for even greater success as it continues to grow.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (1 round)
Apr 2024
$7.7m
SERIES A
Total funding: $7.7m
Company benefits
- VSOP: As a valued team member, you'll have the opportunity to join our VSOP pool, allowing you to share in the company's financial success
- 27 days of vacation: We offer 27 days of paid time off on top of national holidays, no matter where you are based
- Flexible working hours: Trust is the backbone of our culture, so you have the autonomy to set your own work hours. We recognize that work-life balance varies for each individual, so you are encouraged to adjust your schedule to suit your personal needs, whether that's spending time with family or focusing on your health and well-being
- Learning budget: You will have a budget of EUR 500 per year to allocate towards any learning and development activities of your choice. You have the freedom to select whatever you believe is best for your growth
- Work from home budget: You will receive a one-off payment of EUR 500 to purchase any equipment you need for your remote office. We provide you with a Mac
- Work from anywhere: We fully embrace remote work and its flexibility. However, we must adhere to the tax regulations specific to each country
- In-person Gatherings: There's nothing like in-person connections to boost team spirit. That's why we organize two types of gatherings: company-wide events twice a year and team-focused meetups twice a year
Company HQ
Prenzlauer Berg, Berlin, Germany
Leadership
Fabian Schwarzer
(Co-Founder & COO)Previously a Senior Consultant at Roland Berger.
Helen Tacke
(Co-Founder & CEO)Preciously a Partner at a family office investment fund. Also previously Co-founded VEECEE, a networking platform for Venture Capitalists.
Tiago Taveira
(Co-Founder & CTO)8+ years experience as a Full-Stack Developer and Product Manager prior starting Cozero.
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