April 8, 2026

Scala Engineer (Senior/Staff)

Senior • Remote

21,000 - 31,080 PLN

Krakow, Poland

We are #VLteam – tech enthusiasts constantly striving for growth. The team is our foundation, that’s why we care the most about the friendly atmosphere, a lot of self-development opportunities and good working conditions. Trust and autonomy are two essential qualities that drive our performance. We simply believe in the idea of ​​“measuring outcomes, not hours”. Join us & see for yourself!

Project Scope

We offer a range of Scala projects spanning Security, Core Development, and complex Algorithmic challenges.

We are working together with a partner from the Smart Contracts industry. We are developing our own language for defining contracts, ensuring consistency and security of transactions, as well as infrastructure for their launch. We are also creating components that enable the integration of the above-mentioned language with new and existing solutions in the area of Distributed Ledger Technology (DLT). The work is divided between several teams responsible for individual components and the performance of the solution. The product is used by large international companies in the financial industry.


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Krakow, Poland

160 - 195 PLN

🏢 Summary: Development of an AI-driven financial platform using advanced NLP to deliver real-time market data through natural language queries for institutional investors. The role covers end-to-end ownership from analysis to production and support within a microservices architecture. You will design and build scalable backend systems using Java and Python in a high-frequency deployment environment. 🗂️ Requirements: Minimum 5 years of software development experience, Strong knowledge of SOLID, Strong knowledge of CleanCode, Strong knowledge of DDD, Strong knowledge of BDD, Proven experience with Java, Proven experience with Python, Experience with Spring, Experience with SQL, Experience with NoSQL, Experience with PostgreSQL, Experience with MongoDB, Experience with Microservices, Experience with EventStreaming, Very good English skills 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, Kafka, Hibernate, AWS, Azure, GCP, Terraform, Docker, Kubernetes, NLP, AI, MachineLearning, LangChain, LangGraph, React, Vue, Clojure, Kotlin, Bash 🏢 Description: O PROJEKCIE Dołączysz do zespołu, który buduje platformę AI w obszarze finansowym. Tworzymy rozwiązanie oparte o zaawansowane NLP i AI , które pozwala instytucjonalnym inwestorom zadawać pytania w języku naturalnym i w czasie rzeczywistym otrzymywać dane rynkowe. To realny produkt używany globalnie - nowa generacja bankowości cyfrowej . Aktualnie używane technologie: Java, JavaScript, Clojure, Kotlin, Bash, Python. Frameworki wybiera zespół (często React i Vue ). KOGO SZUKAMY Osoby, która bierze odpowiedzialność end-to-end (analiza → development → testy → produkcja → support), pracuje blisko produktu i biznesu, Osoby, która będzie miał realny wpływ na architekturę, jakość i tempo delivery ciekawej nowych technologii i eksperymentów ludzi, którzy akceptują „kontrolowane porażki” jako element nauki developerów, którzy lubią się uczyć nowych języków i narzędzi osób, które chcą budować realny produkt W P RAKTYCE OZNACZA TO Pracę w małym zespole (4–6 osób) z dedykowanym Product Ownerem Przekładanie wymagań biznesowych na stories i iteracyjne wypuszczanie ich na produkcję Projektowanie i rozwijanie nowych elementów systemu zgodnie z ograniczeniami technologicznymi Świadome zarządzanie długiem technicznym (balans między „nowe” a „naprawiamy”) Pair programming i realną współpracę przy projektowaniu rozwiązań Aktywne wsparcie produkcji – bo to, co budujesz, faktycznie żyje i jest używane WYMAGANIA (MUST HAVE) Min. 5 lat doświadczenia w tworzeniu oprogramowania Bardzo dobra znajomość SOLID, Clean Code, DDD, BDD Java + Python (udokumentowane doświadczenie) Spring Framework Bazy danych SQL i NoSQL (PostgreSQL, MongoDB) Mikroserwisy i event streaming Bardzo dobra znajomość języka angielskiego (mówienie + pisanie) Chęć dzielenia się wiedzą i współpracy przy projektowaniu systemów Nie wymagamy doświadczenia w bankowości – świeże spojrzenie jest mile widziane . Duży plus , jeśli masz doświadczenie w: Machine Learning / NLP / AI / Data Science NICE TO HAVE Prompt Engineering LangChain LangGraph Clean Architecture JAK PRACUJEMY Zespoły samoorganizujące się , hybrydowy model pracy Nie pracujemy w sprintach – stawiamy na flow : małe, niskiego ryzyka zmiany częste wdrożenia na produkcję tysiące deploymentów rocznie (np. 32 tys. zmian w 2021 ) Produkcja i klienci są na pierwszym miejscu Specjalizacja jest OK, ale cenimy elastyczność i wyjście poza strefę komfortu Zawsze możesz liczyć na pair programming i wsparcie zespołu Sam/a zobacz, dlaczego warto być w j-labs! Dołączysz do firmy stworzonej przez inżynierów dla inżynierów , która istnieje na rynku od 15 lat. Obecnie zatrudniamy ponad 500 osób . j-labs to stabilność i długofalowa współpraca – około 25% załogi to osoby pracujące już ponad 5 lata! Możesz zmienić projekt – rób to co lubisz, rozwijaj swoje kompetencje, zdobywaj nowe. Robimy dobre IT albo wcale . Technologie, w których pracujemy to m.in. Java 17/21,  Spring, Hibernate, Mikroserwisy,  AWS/Azure/GSP/,  Terraform, Docker, Kubernetes,Kafka Eksperci przyciągają ekspertów - średnie doświadczenie naszych inżynierów wynosi 12 lat , a 30% zostaje zatrudnionych z polecenia . Stawiamy na knowledge sharing i rozwój . Organizujemy Talk4Devs, meet’upy , dajemy Ci przestrzeń do budowania swojej marki osobistej jako prelegent, czy prowadzenia własnych projektów, których rezultaty możesz przedstawiać m.in. na naszym blogu. Dołącz do Gildii Technologicznej l ub stwórz własną - nasze community zrzeszają specjalistów w obszarach : Java , Kotlin, .NET, Frontend, Management, DevOps, Quality Assurance Mamy zakodowane, że jest czas pracy i czas nie pracy, więc bardzo dbamy o to, aby work life balance został zachowany. Otrzymaliśmy w tym roku certyfikat Great Place to Work (aż 80% odpowiedzi w ankiecie dotyczącej różnych obszarów wybierało najwyższe noty, jesteśmy w pierwszej 10 firm z najlepszym wynikiem)

Technology

VirtusLab

Data Engineer/Consultant (Senior/Staff)

Senior

Remote

Krakow, Poland

21,000 - 31,080 PLN

🏢 Summary: Design and build a modern Data Platform from scratch for an insurance client, establishing a governed, production-ready Snowflake environment and enabling AI capabilities. The role covers full lifecycle ownership from architecture and data modelling to pipeline implementation and post-launch operations. You will develop scalable data ingestion and processing solutions while promoting best practices, automation, and CI/CD standards. 🗂️ Requirements: Hands-on experience with Python, Proven experience with data warehouse solutions (Snowflake, BigQuery or Redshift), Experience with Databricks or data lakehouse platforms, Strong expertise in data modelling and ETL/pipeline design, Experience with cloud platforms (AWS, GCP or Azure), Experience with cloud data services (S3, GCS, ABS, EMR, Dataproc, MWAA, Composer, ADF or AWS Glue), Ability to design and maintain data quality and governance standards, Experience working in Agile environments 📃 Skills: Python, SQL, Snowflake, Databricks, BigQuery, Redshift, Azure, AWS, GCP, Terraform, dbt, Spark, PowerBI, ADF, Glue, EMR, Dataproc, MWAA, Composer 🏢 Description: We are #VLteam – tech enthusiasts constantly striving for growth. The team is our foundation, that’s why we care the most about the friendly atmosphere, a lot of self-development opportunities and good working conditions. Trust and autonomy are two essential qualities that drive our performance. We simply believe in the idea of ​​“measuring outcomes, not hours”. Join us & see for yourself! About the role The majority of these roles will be at the forefront of client collaboration and building VL positions in the industry (spearheading projects). You will work closely and directly with a different specialist from the client side. Collaborate with stakeholders to define requirements, develop data pipelines and data quality metrics. You will participate in defining the requirements and architecture for the new platform, implement the solution, and remain involved in its operations and maintenance post-launch Your work will also introduce data governance and management, laying the foundation for accurate and comprehensive reporting that was previously impossible. Build data ingestion & processing pipelines. All of the above with a strong focus on the customer’s needs. Flexibility in action and the ability to overcome obstacles are highly valued in this role. View available projects: Project JetBrains Projectt scope The client is introducing Atlan as a new internal Data Catalogue solution and uses Glean as a company-wide unified search platform for thousands of employees. To ensure a smooth transition from our existing Knowledge Base and OpenMetadata setup, we need to index Atlan assets into Glean so that metadata for databases, tables, metrics, and reports is easily discoverable through search. Tech stack Python,  System & Data Integration, Kubernetes, System design, Infrastructure mindset Skills We’re looking for a Data Platform Engineer with experience in data platforms and system design at scale. We expect a track record in designing integration architectures for external systems and streamlining data migration/ingestion. As a Data Platform Engineer, you will design and implement a solution that: Periodically indexes Atlan metadata assets into Glean, runs on a configurable schedule (hourly/daily), is production-ready, observable, and maintainable by our DevOps team after handover. Moreover, ensure compliance and data governance at the appropriate level in line with the company’s standards. What we expect in general A proactive approach and flexibility in action were a must Very good command of English (written and spoken) Hands-on experience with Python Proven experience with data warehouse solutions (e.g., BigQuery, Redshift, Snowflake) Experience with Databricks or data lakehouse platforms Strong background in data modelling, data catalogue concepts, data formats, and data pipelines/ETL design, implementation and maintenance Ability to thrive in an Agile environment, collaborating with team members to solve complex problems with transparency Experience with AWS/GCP/Azure cloud services, including: GCS/S3/ABS, EMR/Dataproc, MWAA/Composer or Microsoft Fabric, ADF/AWS Glue Experience in ecosystems requiring improvements and the drive to implement best practices as a long-term process Experience with Infrastructure as Code practices, particularly Terraform, is an advantage Proactive approach Don’t worry if you don’t meet all the requirements. What matters most is your passion and willingness to develop. Apply and find out! A few perks of being with us Building tech community Flexible hybrid work model Home office reimbursement Language lessons MyBenefit points Private healthcare Training Package Virtusity / in-house training And a lot more! Apply now

Technology

Scalo

Staff Software Engineer

Senior

Remote

Wroclaw, Poland

29,400 - 31,920 PLN/hr

🏢 Summary: Role focused on designing and evolving large-scale distributed and microservices architectures for a high-traffic investment platform in the financial sector. The position involves building and maintaining cloud-native, mission-critical systems with strong emphasis on reliability, security, and observability. It includes technical leadership, architectural decision-making, and close collaboration with cross-functional teams in a fully remote model. 🗂️ Requirements: Minimum 6+ years of experience in designing and building high-availability distributed systems, Strong knowledge of Java and/or Kotlin with Spring Boot, Experience with microservices architecture and cloud-native systems, Hands-on experience with AWS (ECS, Fargate, Lambda or similar services), Ability to design systems and make architectural trade-offs (REST vs gRPC vs GraphQL, sync vs async, SQL vs NoSQL), Experience working with high-scale production environments, Experience with DevOps practices, CI/CD and Docker, Knowledge of security practices (JWT, OAuth2, Shift Left Security), Experience in regulated environments (fintech or banking), English proficiency at minimum B2+ level, Experience in mentoring and operating at Senior/Staff/Principal level 📃 Skills: Java, Kotlin, Spring, SpringBoot, AWS, ECS, Fargate, Lambda, Microservices, Cloud, REST, gRPC, GraphQL, SQL, NoSQL, Docker, CI/CD, DevOps, JWT, OAuth2, AI, ML 🏢 Description: W Scalo zajmujemy się dostarczaniem projektów software'owych i wspieraniem naszych partnerów w rozwijaniu ich biznesu. Tworzymy oprogramowanie, które umożliwia ludziom dokonywanie zmian, działanie w szybszym tempie oraz osiąganie lepszych rezultatów. Jesteśmy firmą, która wykorzystuje szerokie spektrum usług IT, żeby pomagać klientom. Obszary naszego działania to m.in .: doradztwo technologiczne, tworzenie oprogramowania, systemy wbudowane, rozwiązania chmurowe, zarządzanie danymi, dedykowane zespoły developerskie. Cześć! U nas znajdziesz to, czego szukasz - przekonaj się! W Scalo czeka na Ciebie: projekt dla branży finansowej / inwestycyjnej (platforma inwestycyjna o dużej skali, obsługująca miliony klientów), projektowanie i rozwój architektury systemów rozproszonych i mikroserwisowych o wysokiej skali i niezawodności, udział w budowie i rozwoju systemów krytycznych, definiowanie i rozwój długoterminowej strategii technicznej oraz roadmapy architektonicznej, projektowanie rozwiązań cross-systemowych w środowisku cloud-native, zapewnianie wysokich standardów w obszarze bezpieczeństwa, observability i reliability, współpraca z zespołami Product, Design, Security oraz DevOps przy dostarczaniu rozwiązań end-to-end, mentoring Senior Engineerów i podnoszenie standardów technicznych w organizacji, udział w inicjatywach zero-to-one oraz refaktoryzacjach krytycznych systemów, promowanie nowoczesnych praktyk inżynierskich: DevOps, AI automation, security by design, praca w modelu 100% zdalnym, stawka: 240 PLN/h netto + VAT (B2B). Ta oferta jest dla Ciebie, jeśli: masz minimum 6+ lat doświadczenia w projektowaniu i budowie systemów rozproszonych o wysokiej dostępności, bardzo dobrze znasz Java i/lub Kotlin oraz Spring Boot, masz doświadczenie z architekturą mikroserwisową i systemami cloud-native, pracujesz z AWS (ECS, Fargate, Lambda lub podobne usługi chmurowe), rozumiesz system design i potrafisz świadomie podejmować decyzje architektoniczne (trade-offy: REST vs gRPC vs GraphQL, sync vs async, SQL vs NoSQL), masz doświadczenie w środowiskach produkcyjnych o wysokiej skali i wymaganiach niezawodności, stosujesz podejście „you build it, you run it” oraz masz doświadczenie z DevOps, CI/CD i Dockerem, znasz praktyki bezpieczeństwa (JWT, OAuth2) i podejście Shift Left Security, masz doświadczenie w pracy w środowiskach regulowanych (fintech / banking- duży atut), potrafisz komunikować złożone zagadnienia techniczne zarówno do zespołów technicznych, jak i biznesowych (angielski min. B2+), masz doświadczenie w mentoringu i pracy na poziomie Staff / Principal / Senior- o wysokim wpływie, mile widziane doświadczenie w wykorzystaniu narzędzi AI/ML w procesie developmentu (np. code generation, test automation, CI/CD automation). Co dla Ciebie mamy? Stabilną współpracę i różnorodne projekty (Software, Embedded, Data, Cloud Services), możliwość rozwoju kompetencji jako Ambasador Scalo - doskonal skille techniczne i presalesowe w społeczności naszych ekspertów, wpływaj na rozwój organizacji, wspieraj innych, przestrzeń do budowania marki osobistej - twórz wartościowe treści, dziel się wiedzą i doświadczeniem, występuj jako prelegent na wydarzeniach (np. ProMeet), prywatną opiekę medyczną - Luxmed, kafeteryjny system benefitów - Motivizer, dostęp do karty Multisport, program poleceń pracowniczych z nagrodami, integracje i wydarzenia firmowe.