Senior Scala Developer

7 days ago


Remote Kraków, Czech Republic ICEO Venture Builder Full time
What we expect from you:
  • Over 4 years of experience in backend development.
  • Extensive proficiency in Scala with a minimum of 3 years of commercial experience.
  • Minimum 1 year of commercial experience in functional programming and Scala Zio stack.
  • Considerable expertise and proven track record of successfully designing and building web systems based on microservices architecture.
  • Knowledge and familiarity with REST API principles and best practices.
  • Experience in enhancing application performance through optimization techniques.
  • Familiarity with multithreading concepts and distributed computing.
  • Self-motivated and accountable, capable of working independently with minimal supervision.
  • Great communication skills with both technical and non-technical people.
  • Proficient in both written and spoken English, at a B2 level or higher.
About the role:

As a Senior Scala Developer, you'll play a pivotal role in building an advanced, low-latency trading platform that bridges the gap between traditional finance and Web3.0. Your expertise in Scala FP and ZIO will help shape our core infrastructure, ensuring performance, scalability, and reliability for institutional clients and high-net-worth investors.

This isn't just another development role—it's an opportunity to own and drive engineering excellence, collaborate with a talented global team, and build a cutting-edge platform that processes millions of transactions daily. If you thrive in a high-impact environment where innovation meets financial technology.

Join us remotely, you can be located anywhere around the CET time zone, as our work is 100% offline. The position is full-time.

About ICEO:

We are a venture builder that has been creating innovative startups for the past twelve years. We're on a mission to accelerate growth, enhance operational capabilities, and secure investments for our portfolio companies.

With a team of more than 150 people from 25 countries, we leverage repeatable company-building processes and best practices to derisk scaling and increase the probability of success. Our multiple exits so far stand as a testament to that.

Join us to build the future together

The project you will work on:

AdmiTrade is an automated high-frequency trading platform for both cryptocurrency and financial instrument markets. As we enter our next growth phase, we are developing a platform specifically designed for institutional clients and high-net-worth investors. This platform will provide access to deep liquidity, flexible credit lines, and strategies for passive capital growth.

AdmiTrade offers technology and deep liquidity for the tokenized financial ecosystem (Web 3.0). Our services encompass providing liquidity for centralized (CEX) and decentralized exchanges (DEX), animating secondary markets for tokens, and introducing new tokens to the market. We leverage our robust in-house technology infrastructure to monitor all market data in real-time, allowing us to gain insights that facilitate the building, implementation, and scaling of new strategies using both machine learning algorithms and those developed by our analytics department.

Technical stack:
  • Language & approach: Scala FP, Zio.
  • Task management: Jira.
  • Observability: Grafana, Kibana.
  • Infrastructure: Docker, Kubernetes, Microservices, Google Cloud Platform, ArgoCD.
  • Work methodology: Kanban.

Technical challenges we face:
  • Lots of data - processing millions of transactions and market pairs data points daily.
  • Technical complexity - integrating with various exchanges requires us to carefully design our software and establish essential monitoring systems to ensure a robust platform.
  • Scalability - developing solutions to efficiently process and store millions of transactions for subsequent analysis.
  • Latency - reducing communication latency across multiple physical regions to a minimum.
,[Develop and own software solutions: Ensure code quality, maintainability and performance by adhering to coding standards, Engage in the full development lifecycle: Participate in all stages, from gathering and analyzing requirements to implementation, testing, and monitoring, while building strong relationships and trust through consistent delivery., Provide technical guidance: Offer technical support throughout the product lifecycle, including the early stages of product development., Participate in architectural discussions, Own and deliver engineering objectives, Lead and collaborate with cross-functional teams: Work closely with engineers, analytics and other teams to navigate through varying levels of detail., Tackle challenging problems: Address complex issues in the domains of finance and distributed systems., Review code: Conduct code reviews to ensure best practices and quality standards are maintained., Provide technical support: Troubleshoot, diagnose, and resolve issues with the trading platform, delivering timely and robust solutions., Contribute to documentation: Enhance technical documentation for the solutions provided., Support and mentor other team members] Requirements: Scala, REST API, Microservices architecture, Functional programming, Git, Communication skills, zio, Crypto Tools: Jira, Confluence, Bitbucket, Agile, Kanban. Additionally: International projects, Small teams.

  • Remote, Wrocław, Czech Republic N-iX Full time

    N-iX is looking for Senior Scala Engineer  About the client:Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Scala Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and...


  • Remote, Kraków, Czech Republic ICEO Venture Builder Full time

    We are seeking an experienced Scala engineer to join our team at ICEO Venture Builder.About the RoleAs a Senior Scala Developer, you will play a key role in building a cutting-edge trading platform that combines traditional finance with Web3.0 technologies.Your expertise in Scala Functional Programming and ZIO will be crucial in shaping our core...


  • Remote, Gdziekolwiek, Czech Republic SoftwareMill Full time

    Must have:Team playerAbility to work independentyCommunication skillsProactivityClean and testable codeSoftware Architecture patternsScalability patterns4+ years of commercial experienceNice to have:Personal blog2nd JVM languageConference / meetup speakerOpen-source contributorPet-project We are a small, flat, agile, but still growing software house full of...


  • Remote, Wrocław, Czech Republic N-iX Full time

    N-iX, a leading European online car market with over 30 million monthly users across 18 countries, seeks an experienced Senior Scala Engineer to shape the future of online car markets and enhance user experience for millions of car buyers and sellers.About N-iXN-iX is a prominent European online car market with a significant presence in 18 countries. As a...


  • Remote, Wrocław, Czech Republic Comscore (via CC) Full time

    Comscore, a global leader in media analytics, is looking for an experienced Scala Developer to join their team. As a Scala Developer at Comscore, you will play a vital role in designing and developing solutions that process petabytes of data.Company OverviewWe are a trusted partner delivering accurate data to global businesses, working with industry leaders...


  • Remote, Wrocław, Czech Republic Comscore (via CC) Full time

    The ideal candidate will have:1+ years of Scala experienceHands-on, proactive approachGood git understandingExperience working with RESTful APIs and service based architectureLinux is your daily driverStrong knowledge of Linux processes, thread management, shell scripting, service management and networkingKnowledge of Spark is highly desirable.Knowledge of...


  • Remote, Kraków, Czech Republic N-iX Full time

    N-iX is a software development service company that helps businesses across the globe develop successful software products. Our customer is a leading European online car market with over 30 million monthly users, present in 18 countries.As a Senior Full-Stack Engineer, you will play a crucial role in shaping the future of online car markets and enhancing the...


  • Remote, Gdziekolwiek, Czech Republic SoftwareMill Full time

    We are a dynamic software house offering innovative solutions to clients worldwide.About UsOur team is comprised of passionate developers dedicated to delivering exceptional results in a flat, agile environment.Job DescriptionA talented Scala Developer will be responsible for designing and implementing scalable software solutions using Akka, Kafka,...


  • Remote, Wrocław, Czech Republic Comscore (via CC) Full time

    The candidate must have: 2+ years of experience with Linux Solid knowledge of Linux (bash, threads, IPC, filesystems; being power-user is strongly desired, understanding how OS works so you can benefit from performance optimizations in production but also in daily workflows) 1+ years of experience with Spark,  primarily using Scala for Big data...


  • Remote, Kraków, Czech Republic N-iX Full time

    Requirements:5+ years of experience with React or Next.JS and TypescriptAt least 3 years of experience with Java for developing APIs and web applications.Exposure to or experience with Scala, or eagerness to learn itAWS 3+ years practical experience.Previous experience working with Optimizely is a must;Deep practical knowledge of AWS Kafka,  AWS DynamoDB,...


  • Remote, Kraków, Wrocław, Warsaw, Czech Republic N-iX Full time

    Must-Have:5+ years of experience with React or Next.JS and TypescriptAt least 3 years of experience with Java for developing APIs and web applications.Exposure to or experience with Scala, or eagerness to learn itAWS 3+ years practical experiencePrevious experience working with Optimizely is a mustDeep practical knowledge of AWS Kafka,  AWS...


  • Remote, Kraków, Czech Republic N-iX Full time

    Must-Have:4-5+ years of experience with Java/Spring Boot for building APIs and web applications  Experience with Scala or ready to learnShould Have:Experience with hosting in Cloud (preferred AWS)Docker/containersAWS RDS/SQL DBAWS LambdaAWS CloudFrontNice to Have:Experience with observability tools like DatadogProficiency with TypeScript/React for web...


  • Remote, Kraków, Czech Republic N-iX Full time

    5+ years of experience with Java/Spring Boot for building APIs and web applicationsProficiency with TypeScript and React for web application developmentExperience with hosting in Cloud (preferred AWS)Docker/containersAWS RDS/SQL DBAWS LambdaAWS CloudFront N-iX is looking for a Senior Full-stack  Engineer  to join the team.About the client:Our customer...


  • Remote, Kraków, Czech Republic Motorola Solutions Systems Polska Full time

    About the Role">Motorola Solutions Systems Polska is looking for a highly skilled Senior Salesforce Developer to join our team. As a Senior Salesforce Developer, you will play a critical role in executing sales priorities related to development in Sales Cloud and CPQ.">Your Key Responsibilities">">Collaborate with our IT team and business partners to...


  • Remote, Kraków, Czech Republic N-iX Full time

    We are seeking a skilled Senior Frontend Developer to join our dynamic development team at N-iX.Company OverviewN-iX is defining the future of cybersecurity through our XDR platform, which automatically prevents, detects, and responds to threats in real-time. Our platform ingests data and leverages patented AI models to deliver autonomous protection.With our...


  • Remote, Gdziekolwiek, Czech Republic SoftwareMill Full time

    Must have:Team playerCommunication skillsProactivityClean and testable codeSoftware Architecture patternsScalability patterns4+ years of commercial experienceNice to have:Personal blogConference / meetup speakerOpen-source contributorPet-project We are a small, flat, agile, but still growing software house full of passionate developers, working for clients...

  • Senior Developer @

    5 days ago


    Remote, Czech Republic AVENGA Full time

    Fluent German 5+ years of hands-on experience with Vue.js 3, including Composition API and component-based architecture Proficiency in JavaScript and best practices in frontend development Experience with Nuxt.js Understanding of clean code principles and testing strategies Solid knowledge of Git and version control workflows  Ability to create...


  • Remote, Kraków, Czech Republic Avenga Full time

    modern Java (min 17), modern Kotlin (min. 3 year of experience),Spring Boot (Spring Core, Spring Data),JDBC/jOOQ and NoSQLGoogle cloudDevOps processes and tools,Monitoring & Metrics tools (Prometheus, Grafana)XP practitioner (TDD, CI/CD, pair programming, coding standards, simple design).Hexagonal/Clean Architecture We are looking for Senior Java Software...


  • Remote, Kraków, Czech Republic Altimetrik Poland Full time

    And if you possess...Bachelor's degree in computer science, information technology, or engineering5+ years of industry experience in building and maintaining large-scale software systemsExperience developing in Java and familiarity with its unit testing frameworksExcellent debugging and optimization skills, and a focus for building reliable systemsStrong...


  • Remote, Czech Republic Moondigo Sp. z o.o. Full time

    At least 6+ years of experience as a Senior Fullstack Developer with a strong emphasis on both front-end and back-end (Java) development.Experience in Java Spring, microservices architecture and REST API development.Solid understanding and experience with React or Angular for front-end development.Hands-on experience with CI/CD pipelines and...