NestJS Jobs in Berlin.
All active NestJS roles based in Berlin.
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Senior Software Engineer (TypeScript, NestJS/Node.js) (m/f/x)
Share this job
Atolls is the world’s largest community-driven shopping platform, active in 20+ markets.
We help millions make smarter spending decisions across discovery, evaluation, and (re-)purchase by connecting people with the right brands and retailers.
Our 1,000+ team across 10 countries builds products used every day at global scale, where you’ll have real ownership and see your impact. Want to shape the destinations people rely on to shop with confidence? Keep reading.
About This Role:
We are looking for a Senior Backend Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team in Paris. At Atolls, your role will be instrumental in helping us develop and launch our innovative saving and rewards programs, creating exceptional user experiences and empowering consumers to make informed and confident shopping decisions. As a key part of our team, you’ll be directly involved in building and enhancing the digital destinations our users rely on throughout their shopping journeys.
Your contributions will help shape how millions of consumers interact with our platforms, guiding them to make smart, fair, and rewarding choices.
Our Benefits:
At Atolls, we believe in nurturing both your professional and personal growth. Here’s what you can expect:
- A culture that values personal and professional development, with internal mobility opportunities.
- A supportive and open-minded team that embraces diverse perspectives and innovative ideas.
- 32 days of paid vacation plus your birthday off, giving you the time you need to recharge.
- A flexible hybrid working scheme to balance work and life.
- Access to a learning budget and internal training to help you grow in your role.
- Mental health coaching to support your well-being.
- Regular global and local get-togethers to celebrate successes and build connections.
- The possibility of taking a sabbatical after three years with the company.
- A cloud-based company setup, providing flexibility and collaboration opportunities no matter where you are.
*These are global benefits that apply to all employees, with additional local perks based on your location.
Responsibilities:
In this role, you will:
- Design, develop, and maintain web applications and components using Node.js, TypeScript, NestJS and related technologies, ensuring adherence to coding standards and best practices.
- Collaborate with front-end developers, designers, and engineering and product managers to deliver high-quality solutions, actively participating in the full software development lifecycle.
- Troubleshoot and debug issues in existing codebases, optimizing application performance and scalability to enhance user experience.
- Integrate third-party APIs and services seamlessly, staying updated on the latest web development trends.
- Document code and processes comprehensively for future reference, while following security best practices to safeguard web application integrity and confidentiality.
- Provide technical guidance and support to junior developers as needed, contributing to team discussions and decision-making processes regarding architecture and technology selection.
Your Profile:
- You have 6+ years of experience as a Software Developer.
- Knowledge of AWS technologies such as DynamoDB, Elasticsearch, relational and NoSQL databases, EventBridge and messaging and queuing solutions like SQS, SNS (or any other cloud platform like Google Cloud or Azure).
- General understanding of common design and architectural patterns, with the ability to produce elegant designs in back-end, REST API, EDA and microservice architectures.
- Logical, analytical thinking, with a structured and target-oriented approach and very good problem-solving skills.
- Passion for delivering clean code, unit/integration tests, and maintainable documentation.
- Familiarity with Agile/Scrum methodologies and DevOps best practices.
- Knowledge of common frameworks such as GitLab, Docker, and CI/CD solutions.
- Optionally, experience with GraphQL, federation and Supergraph concepts.
- Good communication skills in English.
Our hiring process:
- TA Call: Meet one of our Talent Experts and get to know Atolls better.
- Technical Round: Focus on the technical aspects of the role (Through a Live Case), and meet your potential manager.
- Final Round: Meet other Atollians 🏝️
It varies from 1 to 3 interviews
*Some processes might slightly change according to needs
Ready to apply?
Be part of a destination where your work helps millions of people make better decisions every day. One focused application is all we need. If you truly fit more than one role, you’re welcome to apply to up to three. This helps us match you with the right opportunity faster.
We review every application with equal care and will reach out if your profile aligns. Apply now with your CV in English.
#LI-AK1
At Atolls, we want to ensure that all employees can thrive in an inclusive environment. Our employment opportunities are open to every gender, race, religion, age, sexual orientation, ability, place of origin, or socioeconomic status. We remain committed to a culture of diversity, equity and belonging, where all employees are welcomed, respected, connected, and engaged.
Ready to apply?
Apply to Atolls
Senior Software Engineer (TypeScript, NestJS/Node.js) (m/f/x)
Share this job
Atolls is the world’s largest community-driven shopping platform, active in 20+ markets.
We help millions make smarter spending decisions across discovery, evaluation, and (re-)purchase by connecting people with the right brands and retailers.
Our 1,000+ team across 10 countries builds products used every day at global scale, where you’ll have real ownership and see your impact. Want to shape the destinations people rely on to shop with confidence? Keep reading.
About This Role:
We are looking for a Senior Backend Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team in Berlin. At Atolls, your role will be instrumental in helping us develop and launch our innovative saving and rewards programs, creating exceptional user experiences and empowering consumers to make informed and confident shopping decisions. As a key part of our team, you’ll be directly involved in building and enhancing the digital destinations our users rely on throughout their shopping journeys.
Your contributions will help shape how millions of consumers interact with our platforms, guiding them to make smart, fair, and rewarding choices.
Our Benefits:
At Atolls, we believe in nurturing both your professional and personal growth. Here’s what you can expect:
- A culture that values personal and professional development, with internal mobility opportunities.
- A supportive and open-minded team that embraces diverse perspectives and innovative ideas.
- 32 days of paid vacation plus your birthday off, giving you the time you need to recharge.
- A flexible hybrid working scheme to balance work and life.
- Access to a learning budget and internal training to help you grow in your role.
- Mental health coaching to support your well-being.
- Regular global and local get-togethers to celebrate successes and build connections.
- The possibility of taking a sabbatical after three years with the company.
- A cloud-based company setup, providing flexibility and collaboration opportunities no matter where you are.
*These are global benefits that apply to all employees, with additional local perks based on your location.
Responsibilities:
In this role, you will:
- Design, develop, and maintain web applications and components using Node.js, TypeScript, NestJS and related technologies, ensuring adherence to coding standards and best practices.
- Collaborate with front-end developers, designers, and engineering and product managers to deliver high-quality solutions, actively participating in the full software development lifecycle.
- Troubleshoot and debug issues in existing codebases, optimizing application performance and scalability to enhance user experience.
- Integrate third-party APIs and services seamlessly, staying updated on the latest web development trends.
- Document code and processes comprehensively for future reference, while following security best practices to safeguard web application integrity and confidentiality.
- Provide technical guidance and support to junior developers as needed, contributing to team discussions and decision-making processes regarding architecture and technology selection.
Your Profile:
- You have 6+ years of experience as a Software Developer.
- Knowledge of AWS technologies such as DynamoDB, Elasticsearch, relational and NoSQL databases, EventBridge and messaging and queuing solutions like SQS, SNS (or any other cloud platform like Google Cloud or Azure).
- General understanding of common design and architectural patterns, with the ability to produce elegant designs in back-end, REST API, EDA and microservice architectures.
- Logical, analytical thinking, with a structured and target-oriented approach and very good problem-solving skills.
- Passion for delivering clean code, unit/integration tests, and maintainable documentation.
- Familiarity with Agile/Scrum methodologies and DevOps best practices.
- Knowledge of common frameworks such as GitLab, Docker, and CI/CD solutions.
- Optionally, experience with GraphQL, federation and Supergraph concepts.
- Good communication skills in English.
Our hiring process:
- TA Call: Meet one of our Talent Experts and get to know Atolls better.
- Technical Round: Focus on the technical aspects of the role (Through a Live Case), and meet your potential manager.
- Final Round: Meet other Atollians 🏝️
It varies from 1 to 3 interviews
*Some processes might slightly change according to needs
Ready to apply?
Be part of a destination where your work helps millions of people make better decisions every day. One focused application is all we need. If you truly fit more than one role, you’re welcome to apply to up to three. This helps us match you with the right opportunity faster.
We review every application with equal care and will reach out if your profile aligns. Apply now with your CV in English.
#LI-AK1
At Atolls, we want to ensure that all employees can thrive in an inclusive environment. Our employment opportunities are open to every gender, race, religion, age, sexual orientation, ability, place of origin, or socioeconomic status. We remain committed to a culture of diversity, equity and belonging, where all employees are welcomed, respected, connected, and engaged.
Ready to apply?
Apply to Atolls
Senior Backend Engineer (TypeScript, NestJS/Node.js) (m/f/x)
Share this job
Atolls is the world’s largest community-driven shopping platform, active in 20+ markets.
We help millions make smarter spending decisions across discovery, evaluation, and (re-)purchase by connecting people with the right brands and retailers.
Our 1,000+ team across 10 countries builds products used every day at global scale, where you’ll have real ownership and see your impact. Want to shape the destinations people rely on to shop with confidence? Keep reading.
About This Role:
We are looking for a Senior Backend Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team based in Berlin or working remotely from Germany. At Atolls, your role will be instrumental in helping us enabling our customers to earn and redeem cashback on our reward platforms, creating exceptional user experiences and empowering consumers to make informed and confident shopping decisions. As a key part of our team, you’ll be directly involved in building and enhancing the digital destinations our users rely on throughout their shopping journeys.
Your contributions will help shape how millions of consumers interact with our platforms, guiding them to make smart, fair, and rewarding choices.
Our Benefits:
At Atolls, we believe in nurturing both your professional and personal growth. Here’s what you can expect:
• A culture that values personal and professional development, with internal mobility opportunities.
• A supportive and open-minded team that embraces diverse perspectives and innovative ideas.
• 32 days of paid vacation plus your birthday off, giving you the time you need to recharge.
• A flexible hybrid working scheme to balance work and life.
• Access to a learning budget and internal training to help you grow in your role.
• Mental health coaching to support your well-being.
• Regular global and local get-togethers to celebrate successes and build connections.
• The possibility of taking a sabbatical after three years with the company.
• A cloud-based company setup, providing flexibility and collaboration opportunities no matter where you are.
*These are global benefits that apply to all employees, with additional local perks based on your location.
Responsibilities:
As a Backend/ Full-Stack Engineer, you will:
- Design, develop, and maintain web applications and components using Node.js, TypeScript, NestJS and related technologies, ensuring adherence to coding standards and best practices.
- Collaborate with front-end developers, designers, and engineering and product managers to deliver high-quality solutions, actively participating in the full software development lifecycle.
- Troubleshoot and debug issues in existing codebases, optimizing application performance and scalability to enhance user experience.
- Integrate third-party APIs and services seamlessly, staying updated on the latest web development trends.
- Document code and processes comprehensively for future reference, while following security best practices to safeguard web application integrity and confidentiality.
- Provide technical guidance and support to junior developers as needed, contributing to team discussions and decision-making processes regarding architecture and technology selection.
Your Profile:
- You have 6+ years of experience as a Software Developer.
- Knowledge of AWS technologies such as DynamoDB, Elasticsearch, relational and NoSQL databases, EventBridge and messaging and queuing solutions like SQS, SNS (or any other cloud platform like Google Cloud or Azure).
- General understanding of common design and architectural patterns, with the ability to produce elegant designs in back-end, REST API, EDA and microservice architectures.
- Logical, analytical thinking, with a structured and target-oriented approach and very good problem-solving skills.
- Passion for delivering clean code, unit/integration tests, and maintainable documentation.
- Familiarity with Agile/Scrum methodologies and DevOps best practices.
- Knowledge of common frameworks such as GitLab, Docker, and CI/CD solutions.
- Optionally, experience with GraphQL, federation and Supergraph concepts.
- Good communication skills in English.
Our Hiring Process:
- TA Call: Meet one of our Talent Experts and get to know Atolls better.
- Technical Round: Focus on the technical aspects of the role (Through a Live Case), and meet your potential manager.
- Final Round: Meet other Atollians 🏝️
It varies from 1 to 3 interviews
*Some processes might slightly change according to needs
Ready to apply?
Be part of a destination where your work helps millions of people make better decisions every day. One focused application is all we need. If you truly fit more than one role, you’re welcome to apply to up to three. This helps us match you with the right opportunity faster.
We review every application with equal care and will reach out if your profile aligns. Apply now with your CV in English.
#LI-AK1 #LI-Hybrid
At Atolls, we want to ensure that all employees can thrive in an inclusive environment. Our employment opportunities are open to every gender, race, religion, age, sexual orientation, ability, place of origin, or socioeconomic status. We remain committed to a culture of diversity, equity and belonging, where all employees are welcomed, respected, connected, and engaged.
Ready to apply?
Apply to Atolls
Senior Backend Engineer (TypeScript, NestJS/Node.js) (m/f/x)
Share this job
Atolls is the world’s largest community-driven shopping platform, active in 20+ markets.
We help millions make smarter spending decisions across discovery, evaluation, and (re-)purchase by connecting people with the right brands and retailers.
Our 1,000+ team across 10 countries builds products used every day at global scale, where you’ll have real ownership and see your impact. Want to shape the destinations people rely on to shop with confidence? Keep reading.
About This Role:
We are looking for a Senior Backend Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team in Munich or working remotely from Germany. At Atolls, your role will be instrumental in helping us enabling our customers to earn and redeem cashback on our reward platforms, creating exceptional user experiences and empowering consumers to make informed and confident shopping decisions. As a key part of our team, you’ll be directly involved in building and enhancing the digital destinations our users rely on throughout their shopping journeys.
Your contributions will help shape how millions of consumers interact with our platforms, guiding them to make smart, fair, and rewarding choices.
Our Benefits:
At Atolls, we believe in nurturing both your professional and personal growth. Here’s what you can expect:
• A culture that values personal and professional development, with internal mobility opportunities.
• A supportive and open-minded team that embraces diverse perspectives and innovative ideas.
• 32 days of paid vacation plus your birthday off, giving you the time you need to recharge.
• A flexible hybrid working scheme to balance work and life.
• Access to a learning budget and internal training to help you grow in your role.
• Mental health coaching to support your well-being.
• Regular global and local get-togethers to celebrate successes and build connections.
• The possibility of taking a sabbatical after three years with the company.
• A cloud-based company setup, providing flexibility and collaboration opportunities no matter where you are.
*These are global benefits that apply to all employees, with additional local perks based on your location.
Responsibilities:
As a Backend/ Full-Stack Engineer, you will:
- Design, develop, and maintain web applications and components using Node.js, TypeScript, NestJS and related technologies, ensuring adherence to coding standards and best practices.
- Collaborate with front-end developers, designers, and engineering and product managers to deliver high-quality solutions, actively participating in the full software development lifecycle.
- Troubleshoot and debug issues in existing codebases, optimizing application performance and scalability to enhance user experience.
- Integrate third-party APIs and services seamlessly, staying updated on the latest web development trends.
- Document code and processes comprehensively for future reference, while following security best practices to safeguard web application integrity and confidentiality.
- Provide technical guidance and support to junior developers as needed, contributing to team discussions and decision-making processes regarding architecture and technology selection.
Your Profile:
- You have 6+ years of experience as a software developer.
- Knowledge of AWS technologies such as DynamoDB, Elasticsearch, relational and NoSQL databases, EventBridge and messaging and queuing solutions like SQS, SNS (or any other cloud platform like Google Cloud or Azure).
- General understanding of common design and architectural patterns, with the ability to produce elegant designs in back-end, REST API, EDA and microservice architectures.
- Logical, analytical thinking, with a structured and target-oriented approach and very good problem-solving skills.
- Passion for delivering clean code, unit/integration tests, and maintainable documentation.
- Familiarity with Agile/Scrum methodologies and DevOps best practices.
- Knowledge of common frameworks such as GitLab, Docker, and CI/CD solutions.
- Optionally, experience with GraphQL, federation and Supergraph concepts.
- Good communication skills in English.
Our Hiring Process:
- TA Call: Meet one of our Talent Experts and get to know Atolls better.
- Technical Round: Focus on the technical aspects of the role (Through a Live Case), and meet your potential manager.
- Final Round: Meet other Atollians 🏝️
It varies from 1 to 3 interviews
*Some processes might slightly change according to needs
Ready to apply?
Be part of a destination where your work helps millions of people make better decisions every day. One focused application is all we need. If you truly fit more than one role, you’re welcome to apply to up to three. This helps us match you with the right opportunity faster.
We review every application with equal care and will reach out if your profile aligns. Apply now with your CV in English.
#LI-AK1 #LI-Hybrid
At Atolls, we want to ensure that all employees can thrive in an inclusive environment. Our employment opportunities are open to every gender, race, religion, age, sexual orientation, ability, place of origin, or socioeconomic status. We remain committed to a culture of diversity, equity and belonging, where all employees are welcomed, respected, connected, and engaged.
Ready to apply?
Apply to Atolls
Senior Backend Engineer (Node.js / NestJS) – Greenfield Product
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Senior Backend Engineer (Node.js / NestJS) – Greenfield Product
Freelance Contract | 9–12 months
Remote from Brazil
About the Project
Castle Tech GmbH is building a new standalone product from the ground up and is looking for an experienced Senior Backend Engineer (Node.js / NestJS) to join us on a freelance basis for 9–12 months.
In this role, you will play a key role in shaping the product's architecture, backend services, and technical direction. You will work closely with frontend engineers, product managers, and stakeholders to turn ideas into reliable, scalable backend systems.
This is an opportunity for engineers who enjoy designing systems, solving complex technical challenges, and taking ownership of meaningful projects from concept to production.
What You'll Work On
- Build and maintain scalable backend services using Node.js and NestJS
- Design a clean system architecture for a new production product
- Take ownership of features from concept through deployment
- Define and implement APIs, services, and backend infrastructure
- Collaborate with frontend engineers, product managers, and designers
- Establish development standards, CI/CD pipelines, and engineering best practices
- Mentor other engineers through code reviews and technical feedback
- Continuously improve workflows using modern tooling and AI-assisted engineering
AI-Augmented Engineering
AI is part of how we work.
We expect engineers to actively use modern AI tools to improve development speed and quality, while maintaining strong engineering judgment.
You should be comfortable:
- Using AI-assisted coding tools in your daily workflow
- Writing effective prompts and critically evaluating AI output
- Identifying AI limitations and failure modes
- Exploring modern AI-driven development workflows
This role is for engineers who see AI as a tool to enhance engineering, not replace good engineering practices.
Your Skills
Must Have
- 5+ years of backend engineering experience
- Strong experience with TypeScript, Node.js, and NestJS
- Experience designing scalable backend architectures
- Strong understanding of software design principles and maintainable systems
- Experience with relational databases (PostgreSQL or similar)
- Experience working with Git, CI/CD pipelines, and Docker
- Experience mentoring or supporting other engineers
- Experience working in agile teams (Scrum or Kanban)
- Strong communication skills in English (written and verbal)
- Availability for 9–12 months, starting as soon as possible
- Comfortable working remotely with European time zone overlap (able to attend meetings during CET/CEST business hours)
Nice to Have
- Experience with microservices or event-driven architectures
- Experience building greenfield or standalone products
- Familiarity with AI-related components such as RAG or vector databases
- Experience integrating AI services or data-driven systems
- Conversational German
- Previous experience working with European clients or distributed teams
What You'll Own
As a Senior Engineer, you will play a key role in shaping both the technology and engineering culture.
You will:
- Design backend systems with clear service boundaries and scalability in mind
- Identify technical risks early and propose effective solutions
- Contribute to architecture discussions and system design
- Improve the team's engineering standards and productivity
- Mentor engineers and contribute to technical decision-making
- Deliver high-impact backend features aligned with product and business goals
Contract Details
- Duration: 9–12 months (with potential for extension)
- Location: Remote from Brazil
- Start date: ASAP
- Engagement type: Freelance / Contract (B2B or international contractor agreement)
- Work arrangement: Fully remote with expected overlap during European business hours (CET/CEST)
- Time zone: Flexible, with core collaboration hours aligned to Central European Time
Why Work With Castle Tech?
- Build something new – work on a greenfield product from the start
- Real technical ownership – influence architecture and system design
- Modern engineering environment – use the latest tools and workflows, including AI-assisted development
- Collaborative team – work with experienced engineers, product managers, and designers
- Remote-first mindset – async-friendly culture with clear communication practices
- International exposure – work with a European tech company from Brazil
Ready to apply?
Apply to CarOnSale
Senior Backend Engineer (Node.js / NestJS) – Greenfield Product
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Senior Backend Engineer (Node.js / NestJS) – Greenfield Product
Castle Tech GmbH – Berlin or Munich (Hybrid)
We are building a new standalone product from the ground up and are looking for a Senior Backend Engineer to help design and build the system's foundation.
In this role, you will play a key role in shaping the product's architecture, backend services, and technical direction. You will work closely with frontend engineers, product managers, and stakeholders to turn ideas into reliable, scalable backend systems.
This is an opportunity for engineers who enjoy designing systems, solving complex technical challenges, and taking ownership of meaningful projects from concept to production.
What You’ll Work On
-
Build and maintain scalable backend services using Node.js and NestJS
-
Design a clean system architecture for a new production product
-
Take ownership of features from concept through deployment
-
Define and implement APIs, services, and backend infrastructure
-
Collaborate with frontend engineers, product managers, and designers
-
Establish development standards, CI/CD pipelines, and engineering best practices
-
Mentor other engineers through code reviews and technical feedback
-
Continuously improve workflows using modern tooling and AI-assisted engineering
AI-Augmented Engineering
AI is part of how we work.
We expect engineers to actively use modern AI tools to improve development speed and quality, while maintaining strong engineering judgment.
You should be comfortable:
-
Using AI-assisted coding tools in your daily workflow
-
Writing effective prompts and critically evaluating AI output
-
Identifying AI limitations and failure modes
-
Exploring modern AI-driven development workflows
This role is for engineers who see AI as a tool to enhance engineering, not replace good engineering practices.
Your Skills
Must Have
-
5+ years of backend engineering experience
-
Strong experience with TypeScript, Node.js, and NestJS
-
Experience designing scalable backend architectures
-
Strong understanding of software design principles and maintainable systems
-
Experience with relational databases (PostgreSQL or similar)
-
Experience working with Git, CI/CD pipelines, and Docker
-
Experience mentoring or supporting other engineers
-
Experience working in agile teams (Scrum or Kanban)
-
Strong communication skills in English
Nice to Have
-
Experience with microservices or event-driven architectures
-
Experience building greenfield or standalone products
-
Familiarity with AI-related components such as RAG or vector databases
-
Experience integrating AI services or data-driven systems
-
Conversational German
What You’ll Own
As a Senior Engineer, you will play a key role in shaping both the technology and engineering culture.
You will:
-
Design backend systems with clear service boundaries and scalability in mind
-
Identify technical risks early and propose effective solutions
-
Contribute to architecture discussions and system design
-
Improve the team’s engineering standards and productivity
-
Mentor engineers and contribute to technical decision-making
-
Deliver high-impact backend features aligned with product and business goals
Why Join Castle Tech?
-
Build something new – work on a greenfield product from the beginning
-
Real technical ownership – influence system design and architecture
-
Modern engineering environment – Node.js, NestJS, and modern tooling
-
AI-forward engineering culture
-
Hybrid work model – office and remote options in Berlin or Munich
-
Your gear, your choice – MacBook or Windows with the tools you prefer
-
Growth and development – structured onboarding and coaching
-
Collaborative team – ambitious engineers who enjoy building great products
Ready to apply?
Apply to CarOnSale
Your Role
You will join our EXP Squad, building the customer-facing APIs and backend systems that power how enterprise customers manage and automate their IoT connectivity. These are production systems that directly impact adoption, scalability, and reliability.
As a Senior Software Engineer, you will operate at the intersection of product thinking and technical excellence. You will not just implement tickets, you will own features end to end. From early discovery and architectural design to rollout and iteration, you will shape scalable, secure, and extensible systems.
Our core stack includes TypeScript, Node.js, and NestJS, running on AWS with Infrastructure as Code.
Your Impact
- Design and deliver scalable, customer-facing backend capabilities from architecture to production.
- Drive API and system design decisions with long-term scalability, security, and maintainability in mind.
- Collaborate closely with Product, Design, and other engineering teams to translate complex requirements into clean technical solutions.
- Improve reliability, observability, testing practices, and architectural standards within your domain.
- Contribute to mentoring, hiring, and raising the engineering bar within the team.
Your Skills
- Strong experience building scalable backend systems with TypeScript and Node.js, ideally using NestJS.
- Proven track record designing and evolving REST APIs in production environments.
- Solid experience with AWS and Infrastructure as Code, especially Terraform.
- Hands-on experience with data modeling and performance optimization in SQL or NoSQL databases.
- Demonstrated ability to own features end to end and make sound architectural trade-offs.
Ready to apply?
Apply to emnify
Senior Fullstack Developer (AIR Automations)
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At JetBrains, code is our passion. Ever since we started in 2000, we have strived to make the strongest, most effective developer tools on earth. Our tools speed up production by automating routine checks and corrections, freeing developers to grow, discover, and create.
We are looking for a talented Full Stack Engineer to join our team and help build an innovative agentic-driven product. In this role, you’ll work across the entire stack – frontend, backend, and cloud infrastructure – designing, developing, and maintaining high-quality features. You’ll collaborate closely with product managers, designers, fellow engineers and AI-agents to deliver scalable, reliable, and user-friendly solutions.
Our tech stack:
- Primary: TypeScript, Node.JS, Nest.JS, React, Vitest (no legacy tech)
- Secondary: Kotlin/Java (for some backend services)
In this role, you will:
- Design, develop, and maintain end-to-end features across the frontend and backend.
- Collaborate with product and design teams to translate user needs into technical solutions.
- Write clean, efficient, and well-documented code.
- Integrate our product with internal and external APIs and services.
- Contribute to architecture decisions, scalability, and performance improvements.
- Participate in code reviews to ensure quality and best practices.
- Debug, troubleshoot, and resolve issues quickly.
- Optimize applications for speed, usability, and scalability.
- Stay up to date with emerging technologies, tools, and industry trends.
- Continuously improve development processes and practices.
We will be happy to have you on our team if you have:
- 6+ years of proven experience as a Full Stack Engineer or in a similar role.
- Solid engineering and architecture skills and ability to build reliable solutions.
- Focus on customer-oriented delivery and understanding of user needs and requirements.
- Deep understanding of backend & frontend development.
- Proficiency in multiple programming languages (e.g. TypeScript, Kotlin, Java, Python).
- Experience with relational and/or NoSQL databases (e.g. PostgreSQL, MongoDB, and MySQL).
- Understanding of cloud platforms (e.g. AWS, GCP, or Azure) and containerization (Docker or Kubernetes).
- Proficiency with version control systems (e.g. Git).
- Experience with testing frameworks (e.g. Jest, Vitest, and Playwright).
- Familiarity with authentication, authorization, and security best practices.
- Experience with AI agent development
- Strong problem-solving skills and attention to detail.
- Excellent communication and collaboration abilities.
- A bachelor’s degree in computer science or engineering (or equivalent practical experience).
Why join JetBrains?
- Strong base salary. We offer competitive pay that reflects your skills and experience.
- Flexible work location. Enjoy the freedom to work from home or from the office.
- Remote work. Spend up to 30 days per year working remotely from abroad.
- Extra time off. More days to relax, recharge, and do the things you love.
- Medical insurance allowance. Enjoy peace of mind for you and your family.
- Learning and development opportunities. Access to conferences, courses, and language classes.
- Relocation support. We help make your move as smooth and stress-free as possible.
- Language classes. Pick up the local language or sharpen your English skills.
- Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays.
- Mental health support. To help you feel your best, we provide easy access to professional mental health services.
- Sports benefit. Enjoy an on-site gym or sports club stipend.
- Internal events. Join company-wide celebrations and team gatherings.
*Some benefits may vary depending on location.
#LI-IM1
We are an equal opportunity employer
We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation.
We process the data provided in your job application in accordance with the Recruitment Privacy Policy.
Ready to apply?
Apply to JetBrains
Senior Backend Engineer – Logistics, Payment & Invoicing (Berlin)
We’re CarOnSale—a Berlin-based startup on a mission to shake up automotive trading across Europe. We’re growing fast, building some seriously cool stuff, and we want you to help us create next-level B2B solutions with real impact.
Here’s what we’re hoping you’ll do with us:
- Build What Matters: Work super closely with product and design so we ship stuff that makes a real difference for our customers (and for the whole business).
- Think Big, Build to Last: Take the lead on designing and running backend systems. Distributed? High-volume? Need to scale or evolve? You’re the expert who makes it work (and keeps it working).
- Set the Bar High: Clean code, solid tests, systems that don’t go down in a stiff breeze—we want you to set the standards and keep us honest. Lead the tough architectural reviews, too!
- Let the Data Speak: You care if features really deliver. So you measure, you learn, you iterate—and you insist we don’t stop until we see results.
- Mentor, Teach, Repeat: Help others get better. Review code, guide junior folks, set the example for learning & ownership. Don’t just help the team—level up the team.
- From Idea to Production (& Beyond): Own your work, front to back. Ideate, design, launch, monitor—and fix/improve what’s needed. No unfinished business left in the backlog!
- Make Us Sharper: Bring better processes, contribute in planning, doc, testing, incident retros—you see something broken or slow, you fix it!
- Plug Us In: Build slick, safe integrations (like with Stripe and friends)—our backend should play nicely with the whole ecosystem.
Here’s what we’re looking for:
- Battle-Tested: 5+ years in backend, you’ve led big projects, owned distributed or microservice systems, and made architectural calls.
- Deep Tech Skills: TypeScript, Node.js, NestJS, PostgreSQL—these are your bread and butter. Plus: queues, caching, monitoring, system design—you know how all the pieces fit together.
- Results, Not Just Code: You don’t just deploy features; you care that they move the needle for the business or product. Show us how your work made a real impact!
- Mentor Mode On: Examples where you didn’t just deliver, but also helped others step up—across teams, in reviews, leading by example.
- Think Product, Think Customer: You connect what you build to what users and the business actually need.
- No Shortcuts on Quality: Automated tests, operational excellence, rollout discipline—you don’t cut corners.
- Great Communicator: You break down complex stuff for anyone (tech or not) and earn trust everywhere you go (in English).
- Learner & Challenger: You’re always growing, questioning, teaching—and you raise the bar for everyone around you.
Why you might love it here:
- Shape the Future: Your ideas actually matter (a lot). You’ll have real influence on where we go.
- 25 Days Work-From-Anywhere: Pack your laptop and go—you can work from wherever inspires you, for 25 days a year.
- Private Pension Plan: We help you plan for your future, right from day one.
- Deutschland Ticket: Get around the city (and beyond!) on us—you’ll always have a ride.
- VSOPS: Share in the success you help create with our Virtual Stock Option Plan.
- Autonomy & Support: You’ll steer things, but also get feedback and coaching to help you grow as a leader.
- Your Tech, Your Way: Mac or Windows? Up to you—we want to set you up for success.
- Superb Team Spirit: Ambitious, helpful colleagues, team events, and a truly collaborative vibe. We call it being a “COSie.”
- You Belong: We’re building an open, high-performing team—your perspective is needed and welcomed.
Sound interesting? Drop us a line. We’d love to meet you!
Ready to apply?
Apply to CarOnSale