Full Stack Software Development Engineer React / Node.js

Company Description
At Nielsen, we are passionate about our work to power a better media future for all people by providing powerful insights that drive client decisions and deliver extraordinary results. Our talented, global workforce is dedicated to capturing audience engagement with content - wherever and whenever it’s consumed. Together, we are proudly rooted in our deep legacy as we stand at the forefront of the media revolution. When you join Nielsen, you will join a dynamic team committed to excellence, perseverance, and the ambition to make an impact together. We champion you, because when you succeed, we do too. We enable your best to power our future.

Job Description
As a data entry coder, you will be responsible for identifying, coding and classifying advertising in various media.

Can work 100% fully remote (within Poland)
TASKS

• Identification and classification of relevant advertising from various media (e.g. TV, print, radio, digital, etc.)
• Coding of advertising motifs according to the Nielsen market classification system
• Various tasks for quality assurance and closing deadlines
• Compliance with agreed productivity and quality targets

Qualifications

• Very good written and spoken German
• Good written and spoken English
• Knowledge of German brands and products is an advantage
• Confident handling of PC programs
• Good typing skills (PC keyboard)
• Independent, correct and conscientious way of working
• Ability to work under pressure, flexibility and team spirit
• Willingness to work overtime as needed

Additional Information
What we offer

• Fully remote working
• Additional days off for well-being: Mental Health Day, Birthday day plus December day if all annual leave has been used up
• Nielsen Impact Days - up to 3 days a year for voluntary work on chosen initiative
• Private health care and discounted gym (Multisport), well-being programmes
• Development opportunities: access to courses and webinars

Compensation
The annual salary for this position ranges from
58500 - 97500 PLN gross.
Please be aware that job-seekers may be at risk of targeting by scammers seeking personal data or money. Nielsen recruiters will only contact you through official job boards, LinkedIn, or email with a nielsen.com domain. Be cautious of any outreach claiming to be from Nielsen via other messaging platforms or personal email addresses. Always verify that email communications come from an @nielsen.com address. If you're unsure about the authenticity of a job offer or communication, please contact Nielsen directly through our official website or verified social media channels.

Enabling your best to power a better media future.

Compensation Transparency: The stated salary range represents the full compensation scale for this level. To allow for future progression and development, new employees are typically hired into the lower to middle portion of this range. An individual's exact starting salary at Nielsen depends on several factors, including geographic location, skills, experience, training, certifications, and other business needs.

Project info:

We are looking for an experienced
Build & Platform Engineer
to join a Platform Engineering team responsible for developing and maintaining a platform that supports software build, testing, and delivery processes.

The team works on a large-scale monorepository based on
Bazel
,
Nix
, and
GitHub Actions
, supporting projects developed in
C++, Java, Python, Go, and JavaScript
. The platform provides CIaaS and reusable CD configurations including Kubernetes deployment solutions such as canary releases.

We are looking for someone who builds and maintains the tooling and infrastructure used by engineering teams to compile, test, and ship software efficiently.

Responsibilities:

• Migrate a large monorepository to a new version of
  Bazel
• Optimize and extend the existing monorepo build setup
• Analyze and improve Bazel configurations, including performance optimizations and Remote Execution setup
• Develop and maintain build infrastructure based on
  Nix
• Support C++ and LLVM toolchains for different runtime environments
• Improve dependency isolation for development workflows, Git hooks, and project-specific tooling
• Troubleshoot complex build and infrastructure issues
• Collaborate with engineering teams to improve developer productivity and CI/CD processes

Job requirements:

• Strong hands-on experience with
  Bazel
  (key requirement)
• Experience working with large-scale monorepositories or complex build systems
• Senior-level or
  Tech Lead
  experience
• Ability to work independently after a short technical onboarding
• Strong understanding of Linux environments
• Experience with CI/CD automation and developer tooling
• Good understanding of C++ build processes and toolchains

Nice to have:

• Experience with
  Nix
• Experience with LLVM
• Knowledge of GitHub Actions
• Experience with Kubernetes
• Experience with Bazel Remote Execution
• Experience building and maintaining developer platforms or developer productivity tooling
• Knowledge of glibc overlays and advanced Linux build environments

Must possess a legal work permit in Poland

Benefits:

General benefits - depends on the form of employment

• remote work
• Referral program with financial bonus
• Life Insurance
• Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment
• Access to internal Learning Platform with multiple trainings oriented for professional growth

Lifestyle benefits:

• Access to MyBenefit platform (Multisport included)
• Team Building activities
• Charity initiatives
• Working environment promoting diversity and inclusion

Health benefits:

• Private medical care - Platinum Package

At Mindera, we believe that software is built by people, for people, with high-performance systems that impact users worldwide.

We are looking for a
Senior
Cloud/Platform Engineer
with a strong
Software Engineering foundation
to join an agile team building modern infrastructure and an
innovative agentic AI platform.
Our core philosophy is simple:
Developers first, then Cloud.
We want someone who truly understands software development, clean code and engineering best practices, who has transitioned into (or naturally evolved towards) Cloud Infrastructure, Automation, and Platform Engineering.

The work will focus primarily on using AWS services with delivery through Terraform and automation in Node.js or Python.

The focus will be on our developer platform that our engineering community is using on a day to day basis to deliver and operate hundreds of services on EC2, ECS and Lambda. Some engagement will also support the team to deliver the new agentic platform currently being built with AWS Bedrock AgentCore technology.

We value empathy, self-organization and a positive attitude. If you are approachable, communicate clearly and believe that team fit is just as important as technical prowess, you'll feel right at home here.

At Mindera we encourage the use of AI to assist with coding and related tasks. We find a persons skill in engineering and software craft, has a big impact long term successful delivery, with or without AI. Our goal in the interview process is to understand the candidates knowledge and skill with engineering. If you need to, or plan to use AI, please be transparent with us when you're using it, to avoid issues and misunderstandings that can either: impact your chance of securing the role or impact your success at Mindera.

When you join Mindera we welcome you into a
fun and politics-free work culture
, built on the principles of
lean and self-organisation.
Note:
Depending on the project and our clients' needs, you may get the chance to pack your bags and take off every now and then. Typically, we estimate travel time to be between 0% and 15%.

HOW YOU'LL MAKE AN IMPACT:

• Deliver improvement to our engineering platforms
• Implement infrastructure changes using Terraform following existing module patterns
• Contribute to services written in Node or Python and automation scripts
• Collaborate with the tech lead and delivery manager to achieve defined milestones
• Test, validate, and deploy changes through CI/CD pipelines
• Provide clear delivery updates and proactively highlight blockers or risks

Requirements
YOUR SKILLS & EXPERIENCE:

• Several years of professional experience as a software engineer, writing code with either Python, Node.js, C# or other programming languages
• Solid foundations, experience with unit testing and knowledge of best practices. The programming language is not important, as long as you know how to code and can adapt. Hands-on coding experience is required — not just basic scripting. (We are using Python and Node)
• Strong knowledge of software engineering best practices, writing clean, maintainable and testable code
• Excellent understanding of DevOps practices and CI/CD (e.g. GitHub Actions)
• Strong experience with AWS (with services such as ECS/EKS, Lambda, Cloudfront, IAM, S3 etc...) following operational and security best practices
• Proven delivery experience with Terraform
• Experience leveraging AI tooling in day-to-day work for coding, code review, research and productivity enhancement
• Active user of AI tooling for daily development, research and productivity — with a genuine curiosity about the AI/agentic space
• Strong ability to quickly learn and effectively apply new technologies
• Track record of delivering results within agile, delivery-focused teams
• Excellent communication and collaboration skills
• Fluency in English

We'd love to get to know you better!
Benefits
THE PERKS OF BECOMING A MINDER:

• Private medical subscription
• Private medical subscription for children
• Counseling and psychotherapy services
• Reimbursement for eyeglasses
• Self-proposal salary process
• Annual profit distribution, subject to company performance and board decision
• Mindera Unit Plan
• Flexible benefits options (sports, medical, cultural, donations)
• Trainings and learning opportunities to grow within your role
• Coaching and development guidance
• 25 days holiday
• Flexibility to choose where you work from
• Vacation incentive
• Parties, gatherings & trips

WHY MINDERA?
We're thrilled to have the opportunity to share with you what it's like to be a part of the Mindera community.

We're a group of friendly and talented individuals who work together to bring projects to life, in a fun, politics-free environment.

Our culture is all about being adaptable and self-organized. We want Minders to take risks, make decisions, work together and feel free to be their most authentic selves, every single day.

We work closely with our clients to truly understand their products and develop high-performance, resilient, and scalable software systems that make a real impact for their users and businesses, worldwide.

We are proud of our work, we're always learning and growing in our Agile and collaborative environment, and we hope you'll love it here just as much as we do!

Check out our Handbook & get to know us better:
https://mindera.com/handbook.pdf

Mindera around the world:
Porto, Portugal | Aveiro, Portugal | Coimbra, Portugal | Leicester, UK | San Diego, USA | San Francisco, USA | Chennai, India | Bengaluru, India | Blumenau, Brazil | Cluj-Napoca, Romania | Valencia, Spain | Casablanca, Morocco | Melbourne, Victoria, Australia & Remote

My responsibilities:

• Join our global Agile team and help ensure the quality of our web applications
• Perform manual testing of new and existing features, exploring edge cases and unexpected behaviors
• Write clear, structured test cases and keep them up to date as features evolve
• Create high‑quality bug reports with reproducible steps, expected vs. actual results, and all relevant details
• Support the verification of bug fixes and help prevent regressions in our product
• Learn how to run and interpret automated tests (e.g. Codeception or Playwright) with guidance from experienced QA engineers
• Take part in technical and product discussions to better understand requirements and potential risks
• Actively participate in our regular Scrum ceremonies and collaborate with developers, product owners, and other stakeholders

The knowledge I own:

• Basic understanding of manual software testing (test cases, positive/negative tests, edge cases, regression testing)
• Basic knowledge of how web applications work (HTTP methods like GET/POST, status codes, request/response cycle)
• Basic SQL skills (writing simple SELECT queries to verify data)
• Some prior coding knowledge (in any language, e.g. JavaScript/TypeScript, PHP, or similar) and interest in reading code
• Willingness to learn how to use tools like Jira, Postman, and browser developer tools
• Willingness to learn from reviews, pair sessions, and feedback from more experienced team members
• Confident communication in English and openness to working in an international team
• Naturally curious, eager to learn, and motivated to keep up with the fast‑changing tech and QA landscape

First exposure to any of the following is a plus, but not required:

• Writing or executing automated tests (e.g. Codeception, Playwright, or similar)
• API testing tools (e.g. Postman, Insomnia)
• CI/CD pipelines (e.g. checking pipeline status, understanding failing test reports)
• Docker or containerized environments
• PHP, JavaScript/TypeScript, or other web‑related technologies
• Interested in eCommerce or digital product development

The offer that would convince me:

• Dedicated mentorship and regular feedback from experienced QA engineers and developers to support your growth from day one
• Time and guidance to learn new testing techniques and tools (including automated testing and basic scripting) on real, but safe, tasks before you take over more complex responsibilities
• The chance to work in an international team, collaborating with colleagues from all over the world
• The opportunity to contribute to our own product and learn how to build high‑quality, stable, and well‑tested solutions in a real production environment
• A strong engineering and quality culture where testing and code quality matter, guided by Clean Code, SOLID principles, and a pragmatic approach to automation
• Flexible working hours with a high degree of remote work possibilities (with at least 24 hours per week so you can meaningfully contribute alongside your studies or other commitments)