Senior Node.js Back-End Engineer

In The Pocket
Bucharest, Romania

Who this role is best for

Strong fit for experienced Node.js engineers who lead backend API development and mentor teams, working in a collaborative, cloud-focused environment in Bucharest.

Best fit for

  • Candidates with 5+ years of TypeScript expertise and a history of working with AWS and containerization tools.
    — “Excellent knowledge of TypeScript (5+ years of experience).”
  • Individuals who are fluent in English and comfortable with AI-assisted development workflows.
    — “You communicate fluently in English. Use AI tools (e.g., Claude, Codex, etc) to support your daily development work and improve code quality.”

Things to consider

  • The role requires fluency in English for daily collaboration and communication.
    — “You communicate fluently in English.”
  • Candidates should be prepared to work with AI tools as part of their development workflow.
    — “Use AI tools (e.g., Claude, Codex, etc) in your development workflow to enhance code writing, support code reviews, and improve productivity.”

How to stand out

  • Highlight your experience mentoring engineers and leading backend API design in your resume and interviews.
    — “You should also be a strong technical mentor, supporting and guiding colleagues to help the team grow.”
  • Emphasize your hands-on experience with cloud infrastructure migration and management on AWS.
    — “Migrate and manage cloud infrastructure on platforms like AWS.”
  • Showcase your ability to optimize cloud resources for scalability and cost-effectiveness.
    — “Optimize cloud resource utilization for cost-effectiveness and scalability.”
  • Demonstrate your expertise in both relational and NoSQL databases with concrete examples.
    — “Strong knowledge of database technologies, both relational and NoSQL (MySQL, PostgreSQL, MongoDB, Redis).”
  • Include specific experience with messaging systems like Kafka or RabbitMQ in your profile.
    — “Good understanding of messaging and broker systems (Pub/Sub, RabbitMQ, Kafka, SNS, SQS).”
Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • designing and implementing backend services
  • optimizing cloud resource utilization
  • troubleshooting complex issues
Typical background
5+ years of experience in backend developmentcloud platforms experience

Skills & requirements

Required

Node.jsCloud InfrastructureAutomationSecurityDatabase TechnologiesMessaging Systems

Preferred

AI ToolsDomain-driven Design

Stack & domain

Node.jsTypeScriptAWSDockerKubernetesOAuthOpenid ConnectSAMLMySQLPostgreSQLMongoDBRedisRabbitmqKafkaSNSSQSOwaspDevOpsInfrastructure-as-codeTerraformAI ToolsDigital ProductAI

About the role

Original posting from In The Pocket via Greenhouse

About us

We're an independent European digital product studio with a strong track record of delivering market-defining strategies and products for enterprises and governments. With about 200 talented people across three countries, premium AI capabilities and a diverse portfolio of international clients, we define, design and ship high-quality digital products, strategies and software. From global cloud-based platforms and large-scale apps to medical devices, banking software and augmented reality experiences. In a nutshell: if it lives and breathes digital, it’s what we do best.

Become a part of our team

At In The Pocket, you join a multidisciplinary team of designers, engineers, strategists and data specialists who care about the work as much as the people they work with. We work in small, autonomous teams that stay close to our clients and their users, and we give everyone the space to take ownership, speak up and grow. You’ll learn from colleagues across our studios, ship products that reach thousands or even millions of people and help shape what digital can do for leading organisations in Europe.

What you’ll do 

In this role, you will be responsible for designing, developing, and maintaining robust backend services that power our applications. You will work closely with frontend engineers, DevOps professionals, and cloud architects to ensure a seamless and efficient development process. You should also be a strong technical mentor, supporting and guiding colleagues to help the team grow.

Design, develop, and implement backend APIs using secure and efficient programming languages and frameworks.

Migrate and manage cloud infrastructure on platforms like AWS.

Automate backend deployments and infrastructure provisioning using infrastructure-as-code (IaC) tools like Terraform.

Optimize cloud resource utilization for cost-effectiveness and scalability.

Implement robust security measures to protect applications and data in the cloud (OWASP).

Troubleshoot and debug complex backend issues.

Stay up-to-date with the latest trends and innovations in cloud technologies.

Use AI tools (e.g., Claude, Codex, etc) in your development workflow to enhance code writing, support code reviews, and improve productivity.

Act as a mentor for colleagues, providing guidance, support, and knowledge sharing to help the team grow.

Who you are 

Excellent knowledge of TypeScript (5+ years of experience).

Proven experience working with cloud platforms like AWS.

Experience with containerization technologies such as Docker and Kubernetes.

Good knowledge of authentication technologies, including OAuth, OpenID Connect, and SAML.

Strong knowledge of database technologies, both relational and NoSQL (MySQL, PostgreSQL, MongoDB, Redis).

Good understanding of messaging and broker systems (Pub/Sub, RabbitMQ, Kafka, SNS, SQS).

Solid understanding of security concepts and best practices (OWASP).

Familiarity with DevOps practices, including infrastructure-as-code, observability, and CI/CD.

Good understanding of quality engineering practices.

Excellent problem-solving and debugging skills.

Strong communication and collaboration skills.

Passion for building high-quality, scalable, and secure software.

Use AI tools (e.g., Claude, Codex, etc) to support your daily development work and improve code quality.

Knowledge of Domain-Driven Design (DDD) is an asset.

You communicate fluently in English.

What we offer  

Joining In The Pocket means becoming part of a team that shapes the future of our clients’ businesses across Europe. Here’s what you can look forward to:

You’ll start with a permanent contract in a role that comes with responsibility and the opportunity to make a real impact from day one.

We offer a competitive salary that reflects your experience and the value you bring.

Our benefits package has you covered with medical insurance, meal vouchers, and more.

Life at In The Pocket isn’t just about work, we host team events throughout the year to celebrate, connect, and have fun together.

Learning never stops here, so after six months, you’ll receive a dedicated learning and development budget to keep growing your skills and exploring new horizons.

Source: In The Pocket careers (Greenhouse)

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