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Backend Engineer

Backend Engineer

Senior Backend Developer for NATO

WLG

Bucharestsenior

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Role description

Would you like to build the backend behind maritime geospatial analytics, from wherever you already live?

This role sits with an international scientific and technology centre working on maritime research. The work is remote in full, on a cloud based collaboration platform, and it runs from the beginning of September to the end of December. You would design, build and operate the services and data pipelines that carry geospatial and temporal analytics across the platform: production grade APIs and microservices, a graph layer in Neo4j, and data engineering and machine learning workflows on Databricks.

It is hands on, and the ownership is real. You lead features end to end, from technical discovery and design through implementation, testing, deployment and runtime monitoring. You review code, mentor the people around you, contribute to architectural decisions, and say early when something is heading the wrong way.

What You Will Be Doing

  • Designing and building production grade APIs and microservices in Python
  • Modelling the domain with Domain Driven Design: bounded contexts, aggregates, repositories, domain services and a shared language everyone actually uses
  • Integrating Neo4j for graph centred work, including Cypher query optimisation and graph data modelling
  • Building data engineering and machine learning workflows on Databricks
  • Working with geospatial and temporal data: spatial indexing, time series, geospatial standards and tools
  • Keeping services reliable, fast and secure, and watching them once they are live

What You Will Need

  • Advanced Python: clean idiomatic code, virtual environments, packaging, type hints, async and await
  • Production experience with FastAPI and async best practice
  • Solid object oriented design and the common patterns: factory, strategy, repository, dependency injection
  • Strong practical Domain Driven Design, including event driven domain modelling
  • RESTful API design: resource modelling, versioning, error handling, pagination, OpenAPI
  • Event driven systems: Kafka, MQTT or Azure Event Hubs, publish and subscribe, asynchronous task processing
  • Strong SQL with PostgreSQL or SQL Server, and strong hands on experience with Neo4j
  • Docker, a working understanding of Kubernetes, and comfort on the Linux command line
  • Testing and CI/CD: pytest, TDD, and GitHub Actions, GitLab CI or Azure DevOps
  • Secure coding: OWASP Top 10, OAuth 2.0, OpenID Connect and JWT
  • Excellent written and spoken English in an international setting

Nice to have

  • Microsoft Azure: Entra ID, Azure DevOps, Key Vault
  • Structured logging, Prometheus or Grafana, and OpenTelemetry tracing

Why this one is worth a look
It is remote in full, the domain is genuinely interesting rather than another internal CRUD application, and the ownership is real: you take features from discovery into production and you have a say in how the architecture goes.

Apply with your CV and we will come back to you quickly.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

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  • A resume for this exact role, not a universal one
  • Answers are kept: edit any one, not the whole conversation
  • All in your account — open it from any device

On the wheel

A discount on mentoring

Winners are drawn at random among entries with a confirmed email. The date and the full rules are on the draw page.

Draw rules

Backend Engineer

Data Platform Expert

Undelucram.ro

Bucharestfulltimelead

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Role description

Undelucram.ro on behalf of:

Capgemini Romania
Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world.

About The Job
The Data Platform Expert is responsible for leading the strategy, architecture, and management of an organization's data infrastructure. Responsible with overseeing teams that build and maintain data platforms, ensure data quality and security, and enable data-driven decision making across the company.

YOUR ROLE

  • Enterprise Data Platform architecture documentation
  • Cloud-based data platforms and modern analytics architectures definition & implementation
  • Data modelling (Conceptual, Logical and Physical models).
  • Data Warehouse, Data Lake, Lakehouse and Data Product architectures.
  • Data Governance and Data Management principles.
  • Data ingestion, transformation, storage, exposure and consumption patterns.
  • Security, access management and operational considerations for data platforms.
  • Monitoring

YOUR PROFILE

  • Experience 8+ years on a similar role
  • Tech skills: Datalake, DWH, Lakehouse
  • Strong problem-solving and cross-functional communication skills to align infrastructure with business goals

WHAT YOU'LL LOVE ABOUT WORKING HERE:

  • Flexible and dynamic work environment involving teams spread across different global locations;
  • Communities with shared interests and identities, all working together to advance diversity, equity and inclusion within the workplace and society;
  • Do you want to learn more? You will have access to various training programs and platforms (e.g.: content provided by Pluralsight, Harvard and Coursera);
  • Attractive benefits package (meal tickets, medical services, Benefit online, Employee Share Option Plan).

Capgemini is an equal opportunity employer. We promote equality and dignity in all aspects of recruitment and employment, and all offers of employment and promotions are made on the basis of performance, competence and ability.

About Us
Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2024 global revenues of €22.1 billion.

Make it real | www.capgemini.com

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Senior Backend Developer

Danfoss

Bucharestsenior

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Role description

The Impact You'll Make
Danfoss Group IT is seeking an
experienced developer
to forefront our integration initiatives and drive the continued improvement of our application portfolio in
Azure cloud.
In this pivotal role, you will be responsible for designing, developing, and deploying robust and scalable enterprise-level integrations.

You will be part of the Digital Customer Experience (DCE) team, with more than 125 international colleagues, where we develop, support, and lead the digital customer experience in Danfoss. We connect business needs and IT into digital solutions.

If you are passionate about building innovative solutions on Azure and have a proven track record of delivering high-quality results, we encourage you to apply with your cv in the English language.
The position is open in our locations in Slovenia, Croatia, Poland and Romania.
The job shall be hybrid.
What You’ll Be Doing

  • Design and implement event-driven integrations (Azure Event Grid and Azure Service Bus) and serverless functions following MACH principles.
  • Utilizing Azure CDN to serve assets and ensure the best possible user experience.
  • Develop and maintain Infrastructure as Code (IaC) solutions using Bicep.
  • Ensure adherence to Microsoft Azure security best practices and industry standards including access controls, data encryption, and vulnerability management.
  • Establish and maintain a robust CI/CD pipeline using Azure DevOps to automate the build, test, and deployment processes.

What We're Looking For

  • Proven professional experience in Azure integration technologies, including Azure Functions, Azure Event Grid, Azure Service Bus, and Azure API Management.
  • Strong proficiency in .NET development and C#.
  • Solid understanding of serverless architectures and cloud-native principles.
  • Expertise in Infrastructure as Code (IaC) using Bicep or Terraform.
  • Experience with CI/CD pipelines and tools like Azure DevOps.
  • Deep knowledge of security best practices and compliance standards.
  • Strong communication and collaboration abilities.
  • Proficiency in spoken and written English.

What You'll Get From Us

  • We promote from within and support your learning with mentoring, training, and access to global opportunities.
  • You’ll have flexibility, autonomy, and support to do your best work while maintaining a healthy work-life balance. Your well-being matters to us.
  • We strive to create an inclusive work environment where people of all backgrounds are respected, and valued for who they are.
  • Together with your employment we provide non salary benefits that we share with your during the recruitment process.

Ready to Make a Difference?
If this role excites you, we’d love to hear from you! Apply now to start the conversation and learn more about where your career can go with us.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or other protected category

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Backend Software Engineer

VOIS

Bucharestsenior

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Role description

Who We Are
VOIS (Vodafone Intelligent Solutions) is a strategic arm of Vodafone Group Plc, creating value for customers by delivering intelligent solutions through Talent, Technology & Transformation.

As the largest shared services organisation in the global telco industry with 30,000 FTE, our portfolio of next-generation solutions and services are designed in partnership with customers across Vodafone Group, local markets, and partner markets to simplify and drive growth. With our strategic partner Accenture, we work alongside our Vodafone customers, other Telco and tech companies to drive transformation, meet the challenges of our industry and ensure we stay relevant and resilient. This partnership is a unique, industry-first model which brings together the best of in-house and 3rd party capability.

We work with customers across 28 countries from 10 VOIS locations: Albania, Egypt, Hungary, India, Romania, Spain, Turkey, UK, Germany, Ireland, and with a network of teams in Czech Republic, Italy, Greece, and Portugal.

#VOIS #BeUnrivalled #CreateTheFuture

About This Role
We are seeking a Senior Software Developer to design, build, and support scalable software solutions within VOIS Technology. This role involves end-to-end development, from implementation and configuration to testing and operational support, with a strong focus on code quality, collaboration across distributed teams, and delivery of robust backend services.

What You’ll Do

  • Develop well-structured, maintainable, and documented code in line with organisational standards
  • Document system improvements, enhancements, and technical changes
  • Collaborate effectively within distributed, cross-country and cross-time-zone teams
  • Contribute to multiple projects simultaneously while ensuring timely delivery
  • Provide accurate time and effort estimates for implementing technical specifications

Who You Are

  • Experienced in Java (11+) and Spring Boot for backend development
  • Skilled in designing, developing, and integrating RESTful APIs
  • Knowledgeable in backend security best practices
  • Strong understanding of unit testing and Test-Driven Development (TDD)
  • Familiar with microservices architecture and event-driven systems
  • Solid foundation in object-oriented programming principles.In-depth understanding of the software development lifecycle
  • Proven experience (minimum 5 years) across technologies including Java Enterprise, Python, JavaScript, TypeScript, Node.js, React, Angular, and working with both relational and non-relational databases

Not a perfect fit?
Concerned you may not meet every requirement? Vodafone is committed to creating an inclusive workplace where everyone can thrive. If you are excited about this role but your experience does not align exactly with every aspect of the job description, you are encouraged to apply. You may be the right candidate for this or another opportunity, and the recruitment team will support you in exploring where your skills fit best.

What's In It For You

  • Hybrid way of working: 2 days per week/ 8 per month
  • Medical and dental services
  • Life and hospitalization insurance
  • Dedicated employee phone subscription
  • Take control of your benefits and choose any of the below options: meal tickets/private pension/vacation vouchers/cultural vouchers within the budget
  • Special discounts for gyms and retailers
  • Annual Company Bonus
  • Ongoing Education – we continuously invest in you to ensure you have everything needed to excel on the job and enhance your skills
  • You get to work with tried and trusted web-technology
  • We let you write your own story by planning vacations: go for a trip, experience new things, have fun and enjoy your 23 days off
  • Special Paternal Program - 4 months of paid paternity leave

What Skills You Will Learn

  • Advanced backend development techniques using modern Java frameworks
  • Scalable system design and distributed architecture patterns
  • Practical application of security standards in enterprise environments
  • Strengthened collaboration and communication in global, agile teams
  • Estimation, planning, and delivery of complex technical solutions

VOIS Equal Opportunity Employer Commitment
Vodafone recognises and celebrates the value of diversity in building a workforce that reflects the customers and communities it serves. No form of discrimination is tolerated. This includes, but is not limited to, discrimination based on race, colour, age, veteran status, gender identity, gender expression, sexual orientation, pregnancy, maternity or parental status, ethnicity, disability, religion or belief, political affiliation, trade union membership, nationality, citizenship, indigenous status, medical condition, HIV status, neurodiversity, social origin, cultural background, marital or civil partnership status, or socio-economic background.

Join Us
At Vodafone, we’re working hard to build a better future. A more connected, inclusive and sustainable world. As a dynamic global community, it's our human spirit, together with technology, that empowers us to achieve this.

We challenge and innovate in order to connect people, businesses, and communities across the world. Delighting our customers and earning their loyalty drive us, and we experiment, learn fast and get it done, together.

With us, you can truly be yourself and belong, share inspiration, embrace new opportunities, thrive, and make a real difference.

Alert
Apply for Vodafone jobs only through the official Vodafone Careers website to avoid job scams and fraud.

#JDEnhancedByTARA

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This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Java Developer | Build Systems That Guide Aircraft, Not Ads

Thales

Bucharestlead

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Role description

Location: Bucharest Orhideea, Romania

Thales is a global technology leader trusted by governments, institutions, and enterprises to tackle their most demanding challenges. From quantum applications and artificial intelligence to cybersecurity and 6G innovation, our solutions empower critical decisions rooted in human intelligence. Operating at the forefront of defence and security, aerospace and space, cybersecurity and digital identity, we’re driven by a mission to build a future we can all trust.

In Romania, we are advancing innovation through software engineering, research and development, delivering solutions in key markets in which Thales Group operates. Our engineers design, develop and integrate solutions that impact global industries – from fully operational systems and subsystems for naval warfare and maritime security operations, to air traffic management systems, satellite-based solutions, tactical indoor simulations, identity and biometric technologies and more.

🛫
Your code will run where failure isn't an option
We're Thales ECC Bucharest, one of the fastest-growing engineering centers in the city. We build software for air traffic, defence, and critical infrastructure across Europe. Not another CRUD app. Systems that stay up when everything else goes down.

THE WORK:
Java backend engineering across the full lifecycle, on long-horizon European programs. REST APIs, services, and platforms with real domain complexity, real users, real stakes.

YOUR STACK:
Java 11+, Spring / Spring Boot, microservices, REST, CI/CD. Kafka, Docker, K8s are a plus, not a gate.

YOU:
2+ years as a Java or backend engineer, curiosity about the domain, and the patience to build things that last a decade, not a sprint. Not ticking every box? Apply anyway. We hire for trajectory, not checklists.

🤝🧑‍💼
WHAT'S IN IT FOR YOU:
Competitive package, private medical care, meal tickets, flexible/hybrid working, learning budget and certifications, and the stability of a group that has been building critical technology for 130 years.

🗼
FRENCH TRACK:
French is a multiplier here, never a requirement. Our French-language programs are growing quicker than we can staff them, and if you speak it, we pay attention to that in the offer.

🚀
WHAT HAPPENS NEXT:
This is an open door, not a single vacancy. We hire Java continuously across our programs. Apply in five minutes, no cover letter. Answer a few short questions about your stack and seniority, and a recruiter dedicated to your domain takes it from there. When the right project opens, you're matched first, at your level, on your timeline.

5️⃣⏱️
One application. Five minutes. No cover letter.
At Thales, we’re committed to fostering a workplace where respect, trust, collaboration, and passion drive everything we do. Here, you’ll feel empowered to bring your best self, thrive in a supportive culture, and love the work you do. Join us, and be part of a team reimagining technology to create solutions that truly make a difference – for a safer, greener, and more inclusive world.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

261 more openings in this category and country

Senior Backend Developer for NATOWLG · Romania

Apply on the employer's site