Staff Software Engineer - DSM Team

Cint; España; Presencial; EUR 110.000 - 140.000; Jornada completa

Descripción de la vacante

Cint is seeking a Staff Software Engineer to join the Data Solutions & Measurement team. You will design and scale backend systems powering production data processes, with autonomy to push the boundaries and collaborate with Outcomes, Methodology & Recruitment teams.

You will focus on complex problems, contribute to migrations toward scalable architecture, and work with data science colleagues to deliver high-throughput, low-latency solutions in production environments.

Formación

• 10+ years backend software engineering experience.
• Core language is Java; other languages welcome (Python, Scala, C/C++, etc.).
• Strong understanding of algorithms, data structures, and architecture for scalable systems.

Responsabilidades

• Design, implement, scale, and maintain backend systems processing large data volumes.
• Work on event-driven and API-based integrations.
• Migrate toward domain-based, scalable architecture ideas.

Conocimientos

Backend engineering

Java core language

Algorithms & data structures

Big data tools (Spark, Kafka)

Python / PySpark

REST APIs & event-driven

Docker & SQL/NoSQL

Distributed systems

Performance optimization

Team collaboration

Herramientas

Spark

Kafka

Delta Lake

Parquet

Docker

Descripción del empleo

Company Description

Cint is a pioneer in research technology (ResTech). Our customers use the Cint platform to post questions and get answers from real people to build business strategies, confidently publish research, accurately measure the impact of digital advertising, and more. The Cint platform is built on a programmatic marketplace, which is the world’s largest, with nearly 300 million respondents in over 150 countries who consent to sharing their opinions, motivations, and behaviors.

Job Description

The Cint Technology team is looking for a Staff Software Engineer to join our international Data Solutions & Measurement team.

This position is for a software engineer who wants to raise the bar. Our business has been doubling in the last few years and so our systems need to scale to accommodate this growth.

What You Will Do

Our ideal candidate will have 20% of the time influencing junior/mid-level engineers and 80% focused on complex problems. This candidate considers themselves among the highly technical and likes to push the limits of their knowledge and experience every day.

In this role, you will work on designing, implementing, scaling, and maintaining the code that powers our production systems. You will work with no supervision, ensuring timely and high-quality delivery.

You will communicate and work closely across 3 teams (Outcomes, Methodology & Recruitment) and with related areas like product and data science.

With great autonomy and freedom to innovate, you will play a key role in world-class research building the next generation of Cint products.

Day-Day of a Staff Engineer in the DSM Team:

• Design, implement, scale, and maintain backend systems that process large volumes of data.
• Work on event-driven and API-based integrations.
• Contribute to migration efforts toward a more domain-based and scalable architecture.
• Build and optimize software for performance-sensitive workflows.
• Investigate technical problems and propose solutions together with the team.
• Collaborate closely with data science and engineering colleagues on technical solutions.
• Participate in a collaborative development model where work is shared rather than handled alone.

Qualifications

• 10+ years of backend software engineering experience, with strong technical depth.
• We’re technology agnostic, so, you're more than welcome to switch your main language (Python, Scala, C/C++, Haskell, Elixir, Go, Ruby, etc...) to Java (our core language)
• Solid understanding of algorithms (HashTables, Maps, etc.), data structures (Anomaly Detection, Dynamic Routing, etc.), Big O notation, Architecture (event-drive-architecture).
• Familiarity with heavy data processing tools and technologies such as Spark, Apache ecosystem tools, Delta Lake, Parquet, Kafka.
• Experience with Python and/or PySpark
• Experience building or maintaining complex, real-time, high-volume systems with high-throughput and low-latency
• Experience with Docker, SQL, and NoSQL databases.
• Experience with REST APIs and event-driven integrations.
• Comfortable working in performance-oriented, production-critical environments with high-throughput & low talency systems

Soft Skills:

• Strong problem-solving skills and a proactive, collaborative working style.
• Ability to communicate well with engineers and data science partners.

Academic Background:

• Computer science, computer engineering or a related field is preferred

Nice to Have

• Experience with AWS, GCP or other cloud providers
• Experience with Pandas.
• Experience with Spring framework and microservices.
• Experience working in large-scale data or analytics environments.

Additional Information

Our Values

Collaboration is our superpower

• We uncover rich perspectives across the world
• Success happens together
• We deliver across borders.

Innovation is in our blood

• We’re pioneers in our industry
• Our curiosity is insatiable
• We bring the best ideas to life.

We Do What We Say

• We’re accountable for our work and actions
• Excellence comes as standard
• We’re open, honest and kind, always.

We are caring

• We learn from each other’s experiences
• Stop and listen; every opinion matters
• We embrace diversity, equity and inclusion.

More About Cint

We’re proud to be recognised in Newsweek’s 2025 Global Top 100 Most Loved Workplaces®, reflecting our commitment to a culture of trust, respect, and employee growth.

In June 2021, Cint acquired Berlin-based GapFish – the world’s largest ISO certified online panel community in the DACH region – and in January 2022, completed the acquisition of US-based Lucid – a programmatic research technology platform that provides access to first-party survey data in over 110 countries.

Cint Group AB (publ), listed on Nasdaq Stockholm, this growth has made Cint a strong global platform with teams across its many global offices, including Stockholm, London, New York, New Orleans, Singapore, Tokyo and Sydney. (www.cint.com)

Additionally, in a world of AI, we want our candidates to understand our approach to the use of AI during the interview and hiring process, so we'd appreciate you reading our AI usage guide.