🚀 ABOUT US

In 10 years, all companies will operate a non-financial system. As we see it, it’s either Dcycle or bust.

Sustainability should not be a cosmetic exercise. 🍃 Dcycle is the startup born to make that happen.

Amidst the regulatory, financial, and technical maze that has attempted to equate sustainability with Non-Financial Statements, the industry has made access to information more complex. When faced with a black box, the keyholder becomes indispensable. In this context, the only way to elevate sustainability to the level it deserves is by adding transparency and eliminating all the bullshit.

At Dcycle, we are determined to fulfill a mission: giving companies control over sustainability.

And we are building an amazing team to make it happen.

💡 What You'll Do

As a Tech Lead, you will:

• Design and lead the implementation of scalable, secure, and maintainable backend services.

• Guide backend initiatives with deep expertise in Python (5-6 years of experience preferred) while supporting architectural decisions across the stack.

• Architect robust microservice solutions using RESTful APIs and event-driven systems (e.g. gRPC, Kafka, SQS), ensuring alignment with product and business goals.

• Oversee and improve CI/CD pipelines (GitHub Actions, AWS CodePipeline) to guarantee reliable deployments and efficient development workflows.

• Ensure best practices in AWS cloud-native infrastructure, leveraging services like EC2, ECS, Lambda, RDS, DynamoDB, and beyond to deliver scalable products.

• Promote and apply infrastructure-as-code principles using CloudFormation and CDK to maintain consistency and security across environments.

• Champion system design excellence, advocating for domain-driven design, CQRS, and event sourcing where they create clear value.

• Collaborate cross-functionally with DevOps, Product, QA, and frontend teams to drive initiatives that span beyond backend boundaries.

• Drive technical innovation, performance, and reliability, creating a culture of excellence and continuous improvement within the engineering team.

• Act as a mentor and technical reference, supporting developers in their growth while fostering ownership and autonomy.

🌐 Tech Stack & Responsibilities

Core Backend & DevOps

• Python (Advanced proficiency)

• REST/gRPC APIs & messaging queues

• Testing frameworks (pytest, unittest) with TDD/BDD methodologies

• CI/CD with GitHub Actions, CodePipeline, containerization via Docker, ECS, Fargate, EKS

• Debugging and performance optimization in staging and production

AWS Cloud Architecture

• EC2, ECS, Lambda, API Gateway, Route 53, ELB

• Databases: PostgreSQL, RDS, DynamoDB, Aurora

• Event-driven design using SQS, SNS, Step Functions, EventBridge

• Infrastructure as Code: CDK, CloudFormation

• Security: IAM, KMS, encryption, least privilege, secret management

• Monitoring & Compliance: CloudWatch, X-Ray, AWS Config, ISO 27001 understanding

Software Architecture & System Design

• Highly available, distributed system design

• Domain-driven design, service boundaries

• Trade-off analysis and cost-aware architectural decisions

Data & API Strategy

• SQL/NoSQL schema design, indexing, migrations (Alembic)

• API lifecycle: versioning, rate limiting, observability

• Idempotency, consistency, and secure access patterns

Leadership & Collaboration

• Lead backend projects end-to-end

• Mentor junior engineers and conduct technical reviews

• Promote engineering best practices, documentation, and innovation

⭐ Who You Are

• Strong problem-solver with ownership mentality

• Autonomous, curious, and driven by impact

• Solid communication skills, written and verbal

• Passionate about clean, testable, and scalable code

• Committed to security and best practices in everything you build

• Collaborative and proactive with a great sense of humor

💸 What Do We Offer?

🏖️ 23 vacation days.
2 weeks of team-building per year.
Cobee card.
Subsidized training.
€70k–€110k gross annual salary depending on seniority.
3 onsite + 2 remote days as a base.
+1 remote day for moms and dads with 0–6 yo children.
+1 remote day if commuting takes longer than 1h (Google Maps base).
-1 remote day for managers.
1-1s will be mandatory onsite.
General All Hands will be mandatory onsite.
Full remote (optional) from the end of the summer team building up to the warm-up week.
Full remote (optional) from Dec 23rd to Jan 6th (both included).

HOW WILL YOU DO IT?

At Dcycle, we take inspiration from models like La Masía at FC Barcelona, one of the most prestigious and recognized football academies in the world. La Masía is much more than just a training facility; it is a true talent factory that has shaped some of the greatest legends in football.

Its success lies in a holistic approach that combines a clear playing philosophy, an innovative methodology, and a long-term commitment to the technical, tactical, and personal development of its players. Beyond football, La Masía also prioritizes the education and well-being of its talents, shaping well-rounded individuals prepared for challenges both on and off the field.

At Dcycle, we embrace a long-term vision and a comprehensive development philosophy. We are not just looking for immediate results, but for people with the potential and determination to make a difference. We prioritize professionals who share our mission: giving companies control over sustainability.

We don’t just evaluate technical skills or past achievements; we focus on individuals with curiosity, critical thinking, and a commitment to continuous learning. We want people who don’t just complete their tasks but challenge ideas, bring new perspectives, and drive change. With this approach, we create an environment where personal and professional growth go hand in hand, and every challenge becomes an opportunity to innovate and make an impact.

The people who belong in Dcycle are:

1. Number 1 → Willing to pay the price to become better, passionate about what we do, energetic, and hungry for challenges.
2. We fix what’s broken → with autonomy and responsibility.
3. We take humor seriously → spending time together is a pleasure.
4. Intelligent → we learn quickly, are versatile, and technically brilliant at something.

The people who belong in Dcycle act:

1. With confidence → whether acting autonomously or seeking opinions and getting involved; we value feedback as the only way to grow.
2. Guided by metrics → we rely on key metrics to evaluate our efforts.
3. Close to the customer → we maintain constant, iterative conversations with our customers and prospects to learn from our experiments (both about the problems and the solutions we create).
4. By taking risks → we understand that failure is the price of learning.

This creates our competitive advantage, which makes us win:

• We are faster.

• We are more demanding.

• We are bolder.