Senior Full-Stack Engineer Job at Darwin Recruitment GmbH (Cologne)

New

Senior Full-stack Engineer, Product Partnerships

Braze's open and flexible customer engagement platform is designed to seamlessly...

Location

United States , New York City

Salary:

154800.00 - 275400.00 USD / Year

Braze

Expiration Date

Until further notice

Requirements

6+ years of full-stack development experience
Strong understanding of design, data structures, and algorithms
Excellent communication and organizational skills
Proven track record of tackling ambiguous and complex problems
Professional experience in Ruby, Ruby on Rails, React, SQL, and NoSQL databases, distributed systems, API design/monitoring/best practices
Professional experience building software at scale
Experience with agile processes

Job Responsibility

Take ownership of large-scale projects, from expanding our e-commerce offerings to optimizing the performance and resiliency of our complex backend systems that power integrations like Shopify
Be a driving force behind our most critical initiatives
Shape the future of our integration platform
Design and code high-impact, foundational features
Contribute to the team's technical and product strategy
Lead by example, mentoring other engineers and ensuring the work of the team is maximally effective

What we offer

Competitive compensation that may include equity
Retirement and Employee Stock Purchase Plans
Flexible paid time off
Comprehensive benefit plans covering medical, dental, vision, life, and disability
Family services that include fertility benefits and equal paid parental leave
Professional development supported by formal career pathing, learning platforms, and a yearly learning stipend
A curated in-office employee experience, designed to foster community, team connections, and innovation
Opportunities to give back to your community, including an annual company-wide Volunteer Week and donation matching
Employee Resource Groups that provide supportive communities within Braze

New

Senior Full Stack Engineer, Data Platform - Experimentation

We are looking for an experienced Senior Full Stack Software Engineer to join ou...

Location

Germany , Berlin

Salary:

Not provided

Bolt

Expiration Date

Until further notice

Requirements

A full-stack engineer with 5+ years of tech experience, including 2+ years in frontend/full-stack roles
Strong Front-end skills: JavaScript/TypeScript, CSS, and HTML
Solid Back-end understanding: experience building APIs and using relational databases (SQL)
Excellent communication and above-average soft skills for collaborating with cross-functional teams and talking to users
A strong UX mindset to ensure simple, self-explanatory design and intuitive interfaces
Proactive problem-solving with a product mindset, focused on value and driving impact

Job Responsibility

Take full ownership of the UI/UX of the AB Platform, including redesign of the existing tools and adding AI capabilities
Contribute directly to improving key features, focusing on performance and user experience
Collaborate with the team to build and optimise the Experimentation Platform used by hundreds of internal users
Work closely with product teams and users to ensure the platform is intuitive and easy to use for non-technical users, including conducting user interviews
Help maintain and evolve high-traffic (200k RPS) back-end services

What we offer

Get a rewarding salary and stock option package that lets you focus on doing your best work

New

Founding Full-Stack Software Engineer – AI for Biopharma

Founding Full-Stack Engineer role at Equator, an AI-native startup building next...

Location

Spain , Barcelona

Salary:

70000.00 EUR / Year

Blu Selection

Expiration Date

Until further notice

Requirements

4–6 years of software engineering experience (mid to senior level)
Strong backend engineering skills with Python
Proficiency in React, Next.js, TypeScript, Node.js
Experience building data-heavy or versioned backend systems
Strong clean-code discipline and architectural thinking
English (Advanced/C1+)
Valid Spain work permit (no sponsorship available)

Job Responsibility

Architect scalable, auditable backend systems (Python, PostgreSQL, modern frameworks)
Build APIs enabling seamless collaboration between humans and AI agents
Develop clean, modular frontend interfaces using React, Next.js, and TypeScript
Implement and maintain data-heavy systems and structured knowledge frameworks
Write clean, precise code and contribute to strong engineering standards
Collaborate closely with founders, designers, and early users to deliver impactful features
Influence product, technical direction, and architectural decisions as a founding engineer

What we offer

Gym membership

Fulltime

New

Senior Full-Stack Engineer (Python + React)

We are looking for an experienced Senior Full-Stack Engineer (Python + React) to...

Location

Ukraine

Salary:

Not provided

Binariks

Expiration Date

Until further notice

Requirements

5+ years of experience with Python, Django, and Django REST Framework
Solid knowledge of React
Experience building and maintaining microservices-based architecture
Experience working with Microsoft Azure
Experience with MS SQL
Experience or strong interest in Agentic Frameworks, specifically BMAD Method (v6)
Experience working in the healthcare domain
English Upper-Intermediate or higher
Strong collaboration and communication skills
Technology-oriented mindset with the ability to proactively suggest solutions and contribute to technical decisions

Job Responsibility

Design, develop, and maintain backend services using Python, Django, and Django REST
Implement and support microservices-based solutions
Contribute to frontend development using React where needed
Work with MS SQL database, ensuring efficient data access and well-structured schemas
Collaborate closely with product managers, business analysts, and engineers to clarify requirements and propose technical solutions
Write clean, maintainable, and well-tested code
Participate in code reviews and contribute to architectural discussions
Take initiative in improving code quality, system design, and development practices

What we offer

18 days of paid annual leave
10 sick leaves
Additional days off for special occasions
Medical Care
Health check-up
English Class
Play Room
IT Cluster membership
Business Trip
Tech Talks

New

Senior Full-Stack Engineer (Python + React)

We are looking for an experienced Senior Full-Stack Engineer (Python + React) to...

Location

Ukraine

Salary:

Not provided

Binariks

Expiration Date

Until further notice

Requirements

5+ years of experience with Python, Django, and Django REST Framework
Solid knowledge of React
Experience building and maintaining microservices-based architecture
Experience working with Microsoft Azure
Experience with MS SQL
Experience or strong interest in Agentic Frameworks, specifically BMAD Method (v6)
Experience working in the healthcare domain
English Upper-Intermediate or higher
Strong collaboration and communication skills
Technology-oriented mindset with the ability to proactively suggest solutions and contribute to technical decisions

Job Responsibility

Design, develop, and maintain backend services using Python, Django, and Django REST
Implement and support microservices-based solutions
Contribute to frontend development using React where needed
Work with MS SQL database, ensuring efficient data access and well-structured schemas
Collaborate closely with product managers, business analysts, and engineers to clarify requirements and propose technical solutions
Write clean, maintainable, and well-tested code
Participate in code reviews and contribute to architectural discussions
Take initiative in improving code quality, system design, and development practices

What we offer

18 days of paid annual leave
10 sick leaves
Additional days off for special occasions
Medical Care
Health check-up
English Class
Play Room
IT Cluster membership
Business Trip
Tech Talks