Senior Software Engineer (mfd) Remote (DE, the UK or PT)
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Monthly Salary:
Posted on:
11 hours ago
Vacancies:
1 Vacancy
Job Summary
About us - Join our mission to fight climate change
Were building the carbon accounting platform that enterprises use for compliance reporting and decarbonization strategy. Our platform processes millions of data points to calculate auditable CO2 emissions helping companies understand and reduce their climate impact.
We are looking for a Senior Software Engineer who will play a key role in shaping and building a core product domain within our carbon accounting platform working on complex backend systems that ingest validate and process large volumes of data.
This is a highly hands-on role where you will collaborate closely with other engineers on architecture decisions design reliable systems and deliver features in fast iterations.
Youll work across the full lifecycle of your systems: from design and implementation to deployment and monitoring in a team that values pragmatism ownership and shipping impact to production.
We are open to hiring fully remotely for this role but require you to be located in one of the following countries: Germany United Kingdom or Portugal.
What youll do:
Contribute to the development of a core product domain: collaborating on architecture decisions feature delivery reliability and operational health for your area of the platform.
Design and build data validation and processing capabilities: helping ensure customers can trust the numbers they see.
Ship features in fast iterations: break down projects into small deliverables write technical documentation and deliver them to production.
Contribute to technical discovery for your projects: shaping implementation approaches testing strategies rollout plans and identifying risks in collaboration with peers.
Take responsibility for what you build in production: supporting deployment monitoring and incident response.
Tech Stack
TypeScript / Node. js
NestJS
PostgreSQL
React
AWS (ECS Lambda SQS Aurora)
Data pipelines / ETL
Youll thrive in this role if you:
Bring 5 years of experience in software engineering.
Have experience with data-intensive backend systems in B2B SaaS.
Are a strong backend engineer fluent in TypeScript/ experienced with NestJS or similar frameworks; solid with PostgreSQL and comfortable navigating a React frontend when needed.
Have worked on complex product domains - contributing to architectural decisions and understanding how different parts of the system interact.
Care about data correctness - youve built systems where wrong output is worse than no output and you think naturally about validation idempotency and edge cases.
Ship small and often - youre uncomfortable when PRs sit for days and you treat in production as the only definition of done.
Have a DevOps mindset - you take responsibility for the components you build from technical design to release monitoring and maintainability.
Debug across layers - when somethings wrong you trace it end-to-end rather than pointing at someone elses service.
Write clear technical documentation that other engineers actually use.
Familiarity with AWS (ECS Lambda SQS Aurora).
Nice to have:
Experience with data ingestion pipelines or analytics tooling ( Snowflake)
Exposure to climate tech sustainability or compliance-grade data systems
Experience improving or incrementally modernizing legacy systems
Startup experience (Series A/B stage)
Why Join Cozero
Real impact - Your domain directly enables enterprises to measure and reduce their carbon footprint. Actual tons of CO2.
Right timing - Series A funded (6.5M from Kvanted and ENV) growing fast working with enterprise customers who trust us with their decarbonization journey.
Exceptional team - Work directly with our founders Helen Fabian and Tiago. Multicultural collaborative and actually passionate about climate actionnot just talking about it.
Youll grow fast - Flat hierarchy. Your ideas ship. Direct impact on product and strategy.
Where Youll Work
Fully remote within Germany Portugal or the UK.
Benefits
27 vacation days 1 day life event leave (Wedding Birth of child etc.) national holidays (Depends on location)
500 EUR annual learning and development budget
500 EUR one-time home office setup
100 EUR monthly coworking budget (for those outside Berlin headquarters)
VSOP (Virtual Stock Options) - share in Cozeros success
Regular team events every year
Were committed to building diverse teams and creating an inclusive workplace. We welcome applications from all qualified candidates regardless of ethnic origin gender religion or belief age or sexual identity. Our recruitment process is fair objective and based solely on the skills and qualifications required for this role.
Key Skills
- Laboratory Experience
- Vendor Management
- Design Controls
- C/C++
- FDA Regulations
- Intellectual Property Law
- ISO 13485
- Research Experience
- SolidWorks
- Research & Development
- Internet Of Things
- Product Development
About Company
Carbon management solution to help enterprises continuously control, reduce, and report their emissions.
