Skip to content
Backend Engineer

The week's list

Every role like this one, in one letter

You are reading one posting. There are hundreds like it on the board, and new ones every week. Pick what you want, leave an email, and the list comes to you — no searching, no coming back here.

Counting what came out this past week…

The first letter arrives right away, then one a week. Unsubscribe in one click from any letter — the address goes nowhere else.

Backend Engineer

AI Engineer

Infosys

Bucharest

Apply on the employer's site

Role description

Location
– Bucharest,Timisoara,Cluj,Sibiu

Business Unit
– ADM

Job Description
Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you.

At Infosys, we assure that your career will never stand still, we will inspire you to build what’s next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people.

Your role

  • Autonomous task agents that plan, reason, and use tools to complete multi-step workflows -campaign QA, comms research, briefing preparation, document workflows.
  • Multi-agent systems where specialized agents collaborate under an orchestrator (e.g. researcher / writer / reviewer patterns).
  • Long-running agents with persistent memory, human-in-the-loop checkpoints, and approval gates suitable for enterprise use.

Required

  • Strong programming skills in Python (typed, tested, production-ready). TypeScript / Node.js a plus.
  • Hands-on production experience with LLM APIs (OpenAI, Anthropic, Azure OpenAI, or open-weight models).
  • Demonstrated experience designing agentic systems - fluency with at least one agent framework (LangGraph, AutoGen, CrewAI, Semantic Kernel) AND practical familiarity with multiple agent design patterns (ReAct, plan-and-execute, reflection, multi-agent).
  • Practical experience with retrieval systems and at least one vector database (pgvector, Pinecone, Weaviate, Azure AI Search, Qdrant).
  • Demonstrated ability to design and run AI evals -not just "it looked good in the demo".
  • Understanding of the security and data-protection considerations of building with AI (PII handling, data minimisation, prompt injection, output validation).

Preferred

  • Domain context in corporate communications, employee experience, brand, marketing, or media.
  • Experience operating inside large industrial / regulated organisations (energy, manufacturing, finance, pharma).
  • Familiarity with Microsoft 365 / SharePoint as a delivery surface.
  • Track record of building eval/observability tooling, not just consuming it.
  • Open-source contributions, technical writing, or conference talks on AI systems.
  • Working knowledge of fine-tuning and model adaptation - useful but not core.

Personal
Besides the professional qualifications of the candidates we place great importance in addition to various forms personality profile. These include:

  • High analytical skills
  • A high degree of initiative and flexibility
  • High customer orientation
  • High quality awareness
  • Excellent verbal and written communication skills

About Infosys
Infosys is a global leader in next-generation digital services and consulting. We enable clients in 46 countries to navigate their digital transformation. With over three decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through the many next of their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise and ideas from our innovation ecosystem.

Visit www.infosys.com to see how Infosys can help your enterprise navigate your next.

All aspects of employment at Infosys are based on merit, competence and performance. We are committed to embracing diversity and creating an inclusive environment for all employees. Infosys is proud to be an equal opportunity employer

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 Software Engineer, StudioWeb

UiPath

Bucharestsenior

Apply on the employer's site

Role description

Life at UiPath
The people at UiPath believe in the transformative power of automation to change how the world works. We’re committed to creating category-leading enterprise software that unleashes that power.

To make that happen, we need people who are curious, self-propelled, generous, and genuine. People who love being part of a fast-moving, fast-thinking growth company. And people who care—about each other, about UiPath, and about our larger purpose.

Could that be you?

Your mission
StudioWeb is a complex cloud project, comprising multiple services that work together to deliver a fast and stable product to the end user. With over 10,000 monthly active users and more than 200,000 total projects created across production and enterprise environments, you will be exposed to cutting-edge technologies, such as Kubernetes, Elasticsearch, .NET 8, and Microsoft Azure.

As a
Senior Software Engineer
you'll encounter complex and interesting challenges, from scaling infrastructure to ensuring high availability and performance.

What You'll Do At UiPath

  • Design, build, and maintain efficient, reusable, and reliable code
  • Ensure the best possible performance, quality, and responsiveness of applications
  • Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues
  • Collaborate with teams across UiPath to design and engineer areas of our product and services
  • Help establish effective and agile engineering practices.
  • Identify bottlenecks and bugs, devise solutions to mitigate and address these issues
  • Help maintain code quality, organization, and automation

What You'll Bring To The Team

  • 6+ years of experience in a software engineering role, using one or more high level programming languages (C#, Java, etc.)
  • Proficient in at least one programming language and its ecosystem
  • Experience working with Cloud Systems (Azure preferred, AWS, GCP)
  • Strong grasp of object-oriented programming and architectural design patterns
  • Very good grasp of multithreading, synchronization, TPL, asynchronous programming
  • Deep understanding of data structures (list, vector, stack, heap), algorithms (sort, search, etc.), and associated time/memory complexity
  • Broad understanding of their role and function within the overall business strategy, helping drive decision making on projects
  • Experience working with globally distributed teams, planning feature development, designing system components, and building engineering roadmap

Nice to have

  • Hands-on experience with C# or related frameworks is a plus

Maybe you don’t tick all the boxes above—but still think you’d be great for the job? Go ahead, apply anyway. Please. Because we know that experience comes in all shapes and sizes—and passion can’t be learned.

Many of our roles allow for flexibility in when and where work gets done. Depending on the needs of the business and the role, the number of hybrid, office-based, and remote workers will vary from team to team. Applications are assessed on a rolling basis and there is no fixed deadline for this requisition. The application window may change depending on the volume of applications received or may close immediately if a qualified candidate is selected.

We value a range of diverse backgrounds, experiences and ideas. We pride ourselves on our diversity and inclusive workplace that provides equal opportunities to all persons regardless of age, race, color, religion, sex, sexual orientation, gender identity, and expression, national origin, disability, neurodiversity, military and/or veteran status, or any other protected classes. Additionally, UiPath provides reasonable accommodations for candidates on request and respects applicants' privacy rights. To review these and other legal disclosures, visit our privacy policy.

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 Python Engineer

N-iX

Bucharestcontractsenior

Apply on the employer's site

Role description

We are looking for a Senior Python engineer to join our team.

Our client is an established market leader, has been processing over 18 million vehicle claims per year since 2002 with more than 1,000 employees worldwide. In our role as a digitalization expert, we combine AI-based processes and the latest technologies with the knowledge of our automotive experts.

Responsibilities:

  • Focus on backend development, designing and implementing software solutions in Python (especially FastAPI) and C# in the field of artificial intelligence and machine learning
  • Conceptualize and test scalable applications and services that meet the requirements of our customers
  • Work closely with Data Scientists, the DACE department, and other Developers to seamlessly integrate AI models into existing systems and bring them into production
  • Analyze and optimize the performance of our AI-Applications to maximize their efficiency and effectiveness
  • Apply your expertise and contribute to the continuous development and improvement of our development processes and methods

Requirements:

  • Qualification: A degree in IT, physics, mathematics, or a related field, preferably complemented by a computer science degree, as well as three or more years of experience in development with C# and Python
  • Experience & Know-how: Solid backend experience, hands-on knowledge of FastAPI and core Python, experience in hosting AI models, as well as a basic understanding of machine learning and SQL
  • Personality & Working method: Excellent analytical abilities and problem-solving skills, able to work independently and stay well-organized, good team player
  • Technical skills: Experience with Python (NumPy, OpenCV, FastAPI), AWS ML services, DevOps (GitLab CI/CD, Docker, Kubernetes, NVIDIA Triton), and backend development (REST API, OpenAPI, Swagger)
  • Language: Fluent in written and spoken English

Nice-to-have:

  • Experience in LLM frameworks such as Haystack/LangChain, PyTorch as well as good in written and spoken German
  • C# (Entity Framework Core, ASP.NET Core)

We offer*:

  • Flexible working format - remote, office-based or flexible
  • A competitive salary and good compensation package
  • Personalized career growth
  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
  • Active tech communities with regular knowledge sharing
  • Education reimbursement
  • Memorable anniversary presents
  • Corporate events and team buildings
  • Other location-specific benefits
  • not applicable for freelancers

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 Software Developer (m/f/d) - Bucharest

IGEL Technology

Bucharestsenior

Apply on the employer's site

Role description

LOCATION:
Bucharest, Romania

THE ROLE:

In our Software Development department, we build applications in the environment of the endpoint management solution. Our developers accompany the entire software development process and are responsible for the development of various front-end, back-end and web applications. They also contribute to discussions about software architecture.

As a Software Developer Java, you are our specialist in the field of Java and work on projects in back-end mainly.

TASK AND RESPONSIBILITIES:

  • Design complex features with large scope and implement them with the team
  • Create software architecture proposals for team tasks and discuss them with peers
  • Lead smaller development projects or feature implementations
  • Process support requests with high complexity and footprint
  • Maintain and optimize development and build environment (CI pipelines, release process)

EXPERIENCE AND QUALIFICATIONS:

  • University degree in computer science, mathematics, IT or relevant professional experience with qualified technical training
  • Minimum 5 years of professional experience
  • Expert in object-oriented programming in Java
  • Experience in using AI in complete development process
  • Proficient in Spring (Spring Boot, Spring MVC, Testing) and JPA
  • Experienced in service architecture / domain driven design
  • Good knowledge of development tools (IntelliJ IDEA, Maven, Git).
  • Knowledge of cloud deployment technologies (Docker)
  • Knowledge of continuous integration and build & release management
  • Defines structures and algorithms himself for new types of problems in existing projects
  • Willing to take project responsibility on a regular basis
  • Willing to familiarize yourself with new topics and to design and implement new solutions as part of a team
  • The development of high-quality code is important to you
  • You have no problem grasping complex contexts and working out content independently

Interested? Apply now via our online applicant portal!

If you have any questions about the position or application process, our Talent Acquisition Team is happy to assist.

Please note that we are unable to hire applicants residing in countries outside our legal entity countries. Please note that IGEL does not currently have a sponsorship license and is regrettably unable to offer sponsorship.

We celebrate tolerance and diversity, and we are committed to building teams that represent a variety of backgrounds, skills and perspectives.

IGEL is an equal opportunity employer and makes employment decisions on the basis of merit. We want the best available person in every job. Our policy prohibits unlawful discrimination based on color, creed, sex, religion, marital status, age, national origin or ancestry, physical or mental disability, medical condition, sexual orientation, or any other consideration made unlawful by federal, state or local laws.

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 Java Developer

Worldline

Bucharest

Apply on the employer's site

Role description

x

Long Description

This is Worldline.
Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

The O
pportunity
As an experienced developer, you will be responsible for delivering high-quality software solutions while actively contributing to a positive and dynamic team environment.

You will coach and guide other developers and support the onboarding of new team-members

If needed you will directly interact with clients.

You will take ownership of the product increment in each delivery, ensuring usability and adherence to coding standards. Your role will involve collaborating with Product Owners and technical teams to clarify requirements and providing technical solutions to support the agile development process.

You will also facilitate knowledge sharing within the team and effectively communicate changes and impacts to stakeholders. Your proactive approach and commitment to excellence will drive continuous improvement within the team and contribute to the overall success of the development initiatives.

Activity

  • Day-to-Day Responsibilities
  • Designing and developing modern and modular Java/Spring boot applications using current coding and testing standards.
  • Working collaboratively and closely with a global team of technologists.
  • Strong ability to lead with ideas and innovation.
  • Participating in agile ceremonies and actively driving towards the team's goals.
  • Collaborate with development, operations, and QA teams
  • Conduct root cause analysis of application performance issues and recommend solutions or optimizations.
  • Optimize application deployments, configurations, and resource allocations for improved performance and scalability.
  • Stay current with industry’s best practices and emerging trends in application performance management and monitoring

Who Are We Looking For
We look for big thinkers. People who can drive positive change, step up and show what’s next – people with passion, can-do attitude and a hunger to learn and grow. In practice this means:

  • 4+ years of relevant experience in developing enterprise applications.
  • Experience developing enterprise Java 11 applications or higher versions.
  • Hands-on Experience in Spring applications, JPA, Hibernate.
  • Should have a working knowledge of XML, JSON, web services (SOAP & REST).
  • Should be a independent contributor
  • Familiar with various design patterns and techniques
  • Database-related technologies : ORACLE, PL/SQL, Postgres
  • Basic Linux and basic Linux Scripting
  • Experience with tools: Cloud, CI/CD, Git, Gitlab, JIRA, Maven, Nexus repository Manager, SonarQube, Postman,Developer Studio – Eclipse /IntelliJ
  • Spring/Spring boot framework, Microservice, Kafka.
  • Working knowledge of Azure/Amazon Web Services (AWS)/GCP, with experience of hosting software solutions on the platform
  • Strong interpersonal and communication skills.
  • Highly initiative-taking and solution-oriented approach.

Perks & Benefits
At Worldline you’ll get the chance to be at the heart of the global payments technology industry and shape how the world pays and gets paid. On top of that, you will also:

  • Hybrid Working Policy
  • Gift vouchers on the occasion of Christmas/Easter Holidays
  • Private medical services
  • 21 vacation days/year
  • Referral bonuses for new hires recommended by you
  • WFH & Flexible Working Hours
  • Full access to the “Learning” platform

Shape the evolution.
We are pushing towards the next frontiers of payments technology, and we look for big thinkers to join our journey. People with passion, can-do attitude and a hunger to learn and grow. Here you’ll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. And with our empowering culture, strong technology and extensive training opportunities, we help you accelerate your career. Wherever you decide to go. Join our global team of over 18,000 innovators across 40+ countries, and shape a tomorrow that is yours to own.

Learn more about life at Worldline at
jobs.worldline.com
We are proud to be an Equal Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any applicable legally protected characteristics.
x

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.

157 more openings in this category and country

AI EngineerInfosys · Romania

Apply on the employer's site