Jobs Scala

Requirements:
5+ years of overall commercial software development experience
Scala: 4+ years of experience
C++: 2+ years of experience
Java: 2+ years of experience
В2+ English

Responsibilities:
Own SQL acceleration features end-to-end — from design to implementation and measurable performance impact
Implement and optimize Big Data processing algorithms across Scala, Java, and C++
Develop performance-critical components at the intersection of Big Data and compilers
Work with custom DSL and code generation systems to extend query execution capabilities
Contribute to cross-language integrations (Java  C++ via JNI) and overall system performance improvements

US Company is searching for a Senior Scala/Java developer with BigData skills to join a development team for an enterprise level platforms and services. Interesting project, distributed team, full-time, an official contract. Remote work, flexible schedule (CET business hours).

Brief project description:

• The product is a complex platform with applications realized like SaaS, which perform multiple functions for improving Safety, Sustainability and Productivity (works planning / incident management / monitoring & analytics) on high-risky industries: oil & gas gathering and transportation, chemical, building, energy market.

Required Skills and Experience:

• Experience building applications with Scala/Java
• Experience with Spark and Delta Lake
• Experience with multithreading in cloud computing environments
• Good understanding of Big Data concepts such as Data Lake and Data Streaming
• Experience with ETL processing, including data ingestion, transformation, and reporting
• Fluent written and spoken English
• It would also be a plus to have experience with the Akka Framework, especially Actor Systems.

Work conditions:

• Distributed team, remote work.
• Scrum approach, 5-7 team members / team.
• Full-time (40 hours per week), CET business hours.
• Official contract: salary, sick-leave days, holidays, vacations.

Hiring process:

• Step 1 - preliminary interview (main questions) - 30 mins
• Step 2 - internal tech interview (tech questions) - 40-50 mins
• Step 3 - tech interview with team leader and architect - 1 hour

Responsibilities:

 Develop and maintain high-performance, scalable, and fault-tolerant systems using Scala;
- Collaborate with cross-functional teams to design and develop software solutions that meet business needs;
- Design, develop, and test software components, services, and APIs;
- Write clean, efficient, and maintainable code;
- Troubleshoot and debug production issues, collaborate with the DevOps team;
- Working proactively on code quality, observability and best practices held across the company.

Hard Skills:

- Proficiency in Scala and its ecosystem (sbt, ZIO, PlayFramework, Sangria, and other libraries). At least 3 years of experience is desired;
- Experience with functional programming and distributed systems;
- Understanding how the JVM, JDK/JRE, and accompanying technologies work;
- Familiarity with database technologies (SQL, NoSQL);
- Hands-on experience using Kafka;
- Knowledge of web technologies (HTTP, REST, GraphQL) and microservice architecture (service mesh);
- Experience with software testing and debugging tools.

Nice to Have:

- Familiarity with Kubernetes and Docker.
- Experience with Aerospike or other KV database.
- Experience with FP paradigm and other JVM languages.
- Understanding of CI/CD tools and methodologies.

What We Offer:

- A job in a stable company – we have been in the market for over 13 years;
- Truly engaging tasks – take part in creating the media service of the future;
- Relationships built on trust and plenty of opportunities for growth;
- Table tennis lessons, and piano classes;
- Free English lessons;
- A corporate psychologist;
- Discounts from partner brands and our service.
 

By applying for the vacancy and submitting your resume to the Company (LLC “MEGOGO”), registered and operating in accordance with the legislation of Ukraine, registration number 38347009, address: Ukraine, 01011, Kyiv, Rybalska Street, 22 (hereinafter referred to as the “Company”), you confirm and agree that the Company processes your personal data provided in your resume in accordance with the Law of Ukraine “On Personal Data Protection” and GDPR regulations.

We’d appreciate it if you could take a moment to fill out a short survey about what matters most to you. It will help us better understand candidates’ expectations and create an even more comfortable environment at MEGOGO. Here’s the link: bit.ly/43YaxBH

Client

Our client is a European vacation package provider focused on offering affordable travel packages. The project involves integrating new travel content suppliers (primarily for flights) into the client’s existing product. A Scala developer will join the team responsible for implementing integrations with travel systems supporting air booking.

Project overview

The goal of the project is to enable the client to integrate with various travel content providers—primarily offering flights and hotels—in order to create and manage their own custom tour packages.

Team

The team consists of 1 Team Lead, 1 Project Manager, 6 Developers, 1 Business Analyst, and 1 Solution Architect.

Position overview

The Scala Developer will be responsible for tasks related to the integration with Amadeus, a global travel technology provider.

Responsibilities

• Demonstrate competence in containerization technologies, including Docker, Kubernetes, and OpenShift
• Possess knowledge of version control systems, particularly Git
• Apply experience in network security to enhance project integrity
• Work collaboratively in agile methodologies, contributing to the efficient development and delivery of projects

Requirements

• Minimum 4 years of experience working with Scala
• Hands-on commercial experience with the ZIO framework
• Proficiency in one or more leading cloud platforms (GCP preferred)
• Experience with Redis for caching and data storage
• Strong knowledge of REST and SOAP web services
• Background in network security principles and practices
• Familiarity with Agile methodologies and workflows
• Experience with Google BigQuery for data analytics
• Solid understanding of Data Warehousing (DWH) concepts
• Experience building and managing data pipelines
• Proficiency in SQL for querying and data manipulation

Nice to have

• Hands-on experience with MySQL DB
• Experience with Kubernetes, OpenShift
• Experience working with Docker
• Experience with Terraform
• Experience with GitHub Actions
• Basic knowledge of Ruby, Ruby on Rails, Python

Please note, 2+ years of experience in C++ is a mandatory for this position.

Requirements:

• 7+ years of hands-on commercial software development experience
• 3+ years of strong Scala experience
• 2+ years of solid C++ experience
• Upper-Intermediate (B2+) English with confidence in active communication (meetings, discussions)
   

Responsibilities:

• Take full ownership of SQL acceleration features — from architecture and design to implementation and measurable performance gains
• Design, build, and optimize Big Data processing algorithms using Scala, Java, and C++
• Develop high-performance, low-latency components at the intersection of Big Data and compiler technologies
• Work with custom DSLs and code generation frameworks to extend and enhance query execution capabilities
• Contribute to cross-language integrations (Java ↔ C++ via JNI) and drive system-wide performance improvements
  
   

N-iX is looking for a Lead Backend (Scala) Engineer to join our team.

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead 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 sellers.

Responsibilities:

• Developing scalable backend services
• Designing complex database solutions
• Designing fast, scalable, and responsive APIs
• Day-to-day work with AWS
• Working in cross-functional teams

• Ready to take ownership and independently drive topics 

   

Requirements:

• At least 6+ years of hands-on coding experience
• Java Spring Boot or Scala knowledge 
• Experience with Object-Oriented/Functional Programming
• Experience in designing fast, scalable, and responsive APIs
• Experience developing cloud-native apps - AWS is preferable
• Experience with SQL and NoSQL (DDB) databases
• Experience with Kafka
• Good communication skills (fluent English, at least Upper-Intermediate)
   

Nice-to-Have:

• Experience with Search databases - ElasticSearch (using it as a search engine);
• Frontend experience - JavaScript or Typescript 
• DevOps Experience - DataDog, Opsgenie, etc.

On behalf of our client, we are looking for a Senior Backend Engineer (Java, C++, Scala).

About the Project

Apache Spark powers data infrastructure worldwide, but at petabyte scale, performance bottlenecks translate directly into massive infrastructure costs.

The company is building a novel engine designed to dramatically accelerate Spark jobs at their core without requiring data teams to change how they work.

The startup has raised $4.5M in seed funding to build a next-generation data infrastructure optimization engine for the AI era.

Responsibilities:

- Own SQL-acceleration projects end-to-end from planning to implementation and measurable outcomes

- Implement algorithms (targeting a custom DSL) for complex SQL functions within a Scala codebase

- Drive performance optimizations for Big Data processing algorithms primarily in Java but also C++

- Research and develop new greenfield development lying at the intersection of Big Data analytics and compilers

- Implement (in a custom DSL) a major SQL operator (e.g. Window aggregate) or smaller SQL expressions

- Migrate a complex code-generated algorithm in a custom DSL to a C++ equivalent

- Invoke Java code via C++ JNI to provide execution of a SQL function for compatibility reasons

- Implement a variant of repartitioning algorithm optimized for edge-case application configurations

- Refactor existing code generation algorithms to accommodate new improvements of a custom DSL

- Improve GitHub actions workflows to accommodate new build options or new comparative benchmarks

Requirements:

- 5+ years of experience with Java

- 3+ years of experience with C++

- 2+ years of experience with Scala

- Experience working with Big Data processing systems (Apache Spark or similar)

- Strong understanding of SQL processing and data processing algorithms

- Experience working with performance optimization and low-level system improvements

- Upper - Intermediate or higher level of English

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

Ready to level up your career? 

Playtech's GPAS unit is looking for an experienced Scala Developer with excellent engineering skills.

Your influential mission. You will...  

• Participate in software design, development, refactoring, support, and code reviews to maintain high development standards.
• Collaborate with platform teams to deliver great results.
• Work autonomously on your tasks with little or no supervision.
• Optimize the platform to achieve maximum throughput and scalability.
• Be proactive and go beyond expectations.

Components for success. You...

• Bring at least 3 years of hands-on experience developing server-side applications in Scala.
• Have a strong working knowledge of Scala (preferably Scala 3) and SBT (Scala Build Tool).
• Demonstrate solid experience with Pekko/Akka, including HTTP, Actors, Cluster, Persistence, Streams, and connectors.
• Possess a strong understanding of the JVM, data structures, and algorithms.
• Exhibit excellent knowledge of parallel and concurrent programming principles.
• Have practical experience building high-scale, distributed systems with complex interfaces and integrations.
• Think like an engineer - taking ownership, driving solutions forward, and continuously improving systems and processes.
• Demonstrate exceptional problem-solving skills and critical thinking.
• Show a willingness to document solutions and actively share knowledge with colleagues.

• Communicate clearly and effectively in English.

   

You'll get extra points for...

• Previous experience in the iGaming domain.
• Experience working with Typesafe Config.
• Hands-on experience with Couchbase or other document-based NoSQL databases.
• Familiarity with AWS services such as S3 and DynamoDB.
• Experience using Play JSON.
• Proficiency with ScalaTest for testing.
• Experience with containerization and orchestration tools such as Docker, Nomad, or Kubernetes.
• Confidence working in Linux environments.

Thrive in a culture that values...   

• A friendly, cooperative, and goal-oriented team of experienced professionals.
• Clear goals and a results-driven environment.
• Open communication, knowledge sharing, and mutual support across teams.
• Initiative-taking and a confident approach at the workplace.
• Collaborative and supportive culture as well as stable long-term career opportunities.
• Global scope and inclusive working environment where you can engage with diverse teams and perspectives.
• Constant learning and development opportunities and professional growth programs.

• An active lifestyle and mental well-being supported through sports classes, master classes, and monthly well-being activities.

   

GPAS UNIT

We invite an experienced Scala Developer to become a part of Playtech as a new member of the GPAS product team. Gaming Platform as a Service aka GPAS is Playtech’s exclusive distributed games delivery platform that currently has more than 1000 games running on it. GPAS is a highly accessible, multi-tenant, scalable, distributed and event-driven system written in Scala with the help of the Akka framework. We use Couchbase as a hot storage and AWS S3/DynamoDB as our cold storage to ensure we can handle nearly a billion transactions per day. We have a complex solution that provides capabilities to run various types of online casino games. We adopt Scrum methodology to deliver new features on time.

Playtech is an equal opportunities employer. Our mission is to welcome everyone and create inclusive teams. We celebrate differences and encourage everyone to join us and be themselves at work.

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 sellers.

Responsibilities

• Design and implement scalable backend services in Scala
• Work extensively with Typelevel libraries (Cats, Cats Effect, FS2, Http4s, etc.)
• Build and maintain event-driven and distributed systems
• Contribute to architectural decisions around concurrency, streaming, and data consistency
• Improve CI/CD pipelines, observability, and system reliability

Tech Stack

• Scala (2.13 / 3)
• Cats / Cats Effect / FS2 / Http4s
• Kafka (event-driven architecture)
• PostgreSQL 
• Docker / Kubernetes
• AWS
• CI/CD (Github Actions)

Required Experience

• 4+ years of backend development experience (Scala)

• Strong production experience with Java

• Java Spring Boot knowledge 

• Hands-on experience with the Typelevel ecosystem

• Familiarity with event-driven architectures (Kafka)

• Experience building distributed systems

• Strong understanding of concurrency and asynchronous programming

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 sellers.

Responsibilities

• Design and implement scalable backend services in Scala
• Work extensively with Typelevel libraries (Cats, Cats Effect, FS2, Http4s, etc.)
• Model complex business domains using strong type systems
• Build and maintain event-driven and distributed systems
• Contribute to architectural decisions around concurrency, streaming, and data consistency
• Write clean, testable, and maintainable code
• Improve CI/CD pipelines, observability, and system reliability
• Collaborate closely with product and platform teams

Tech Stack

• Scala (2.13 / 3)
• Cats / Cats Effect / FS2 / Http4s

Kafka (event-driven architecture)

• PostgreSQL 
• Docker / Kubernetes
• AWS
• CI/CD (Github Actions)

Required Experience

• 4+ years of backend development experience (Scala)
• Strong production experience with Java
• Java Spring Boot knowledge 
• Hands-on experience with the Typelevel ecosystem
• Familiarity with event-driven architectures (Kafka)
• Deep understanding of: Effect systems (Cats Effect); Functional programming principles; Type classes, higher-kinded types; Pure vs impure boundaries
• Experience building distributed systems
• Strong understanding of concurrency and asynchronous programming
• At least upper-intermediate English level 

Nice to Have

• Experience with Scala 3
• Knowledge of tagless-final patterns
• Experience in fintech or high-integrity domains
• Experience contributing to open source

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

About Digis:

Digis is a European IT company with 200+ specialists delivering complex SaaS products, enterprise solutions, and AI-powered platforms worldwide. We ensure transparency, stability, and professional growth opportunities for all our team members.

About the Project:

The Project is a fast-growing UK-based startup building a next-generation acceleration engine for Apache Spark, used in large-scale data infrastructure worldwide.

At petabyte scale, even small inefficiencies in data processing translate into massive infrastructure costs. The Project is solving this by developing a novel engine that dramatically accelerates Spark workloads without requiring changes from data teams.

• $4.5M seed funding
• Founded in 2021, already in production
• Founders from top-tier tech companies (including Apple)
• Focus: Big Data, performance optimization, compilers
• Full-time, remote

Requirements:

• 7+ years of overall commercial software development experience
• Scala: 3+ years of experience
• C++: 2+ years of experience
• В2+ English (active communication in meetings)

Responsibilities:

• Own SQL acceleration features end-to-end — from design to implementation and measurable performance impact
• Implement and optimize Big Data processing algorithms across Scala, Java, and C++
• Develop performance-critical components at the intersection of Big Data and compilers
• Work with custom DSL and code generation systems to extend query execution capabilities
• Contribute to cross-language integrations (Java ↔ C++ via JNI) and overall system performance improvements

Why This Role is Exciting:

• Real impact on petabyte-scale data processing
• Combination of high-level (Scala/SQL) and low-level (C++) engineering
• Work on cutting-edge challenges at the intersection of Big Data + compilers
• Product already in production with strong funding and growth potential

If this sounds like the right opportunity for you, apply now! We look forward to discussing this further.

In a partnership with a global consulting company we are looking for a skilled Scala Engineer to join our team and help build high-performance, scalable backend systems. You’ll be working with a modern functional stack to solve complex data challenges and optimize our distributed architecture. The client is a British multinational enterprise software company.

The Tech Stack:

• Language: Scala 2.13
• Framework: Play Framework (Pekko-based)
• Data: MySQL, Redis
• Infrastructure: AWS Services
• Monitoring: Grafana, Kibana

Core Responsibilities:

• Design and maintain robust backend services using Scala and the Pekko-based Play Framework.
• Write clean, testable code emphasizing immutability and functional programming principles.
• Optimize database performance through SQL profiling, indexing, and query refinement.
• Manage and deploy cloud-native applications within the AWS ecosystem.
• Collaborate through a structured CI/CD pipeline and Git-based PR workflow.

Technical Requirements:

• Scala Mastery: Deep knowledge of the Scala standard library, specifically collections, Futures for concurrency, and pattern matching.
• Database Expertise: Strong proficiency in SQL. You should be comfortable explaining execution plans and optimizing slow queries.
• Cloud Proficiency: Hands-on experience with core AWS services (e.g., EC2, RDS, S3, or Lambda).
• DevOps Mindset: Solid understanding of version control (Git) and automated deployment flows.

Nice to Have:

• Experience with functional persistence libraries like Doobie or Squeryl.
• Familiarity with observability tools; specifically building Grafana/Kibana dashboards and configuring alerts.
• Direct experience with horizontal scaling and managing state in large-scale distributed Pekko systems.
  
   

We are looking for a Senior Scala Engineer to join a data-driven engineering team working on large-scale distributed data processing platforms. The role focuses on building, optimizing, and maintaining high-performance data pipelines using Scala, Apache Spark, and Databricks within a Microsoft Azure cloud environment.

You will work closely with data engineers, architects, and product teams to deliver reliable, scalable solutions that process massive volumes of data and support business-critical analytics and decision-making.

Details

Location: Remote 

Employment Type: Full-time

Start Date: ASAP

Language Requirements: English — Upper-Intermediate or higher

Key Responsibilities

Design, develop, and maintain scalable data processing solutions using Scala and Apache Spark

Build and optimize ETL / ELT pipelines on Databricks

Work with large datasets, ensuring performance, reliability, and fault tolerance

Deploy and operate data workloads in Azure (ADLS, Azure Data Factory, Azure SQL, etc.)

Collaborate with data architects on data modeling and pipeline design

Optimize Spark jobs for cost, performance, and scalability

Implement best practices for data quality, monitoring, and logging

Participate in code reviews, technical discussions, and architectural decisions

Troubleshoot and resolve production data issues

Requirements

Strong hands-on experience with Scala in production environments

Solid expertise with Apache Spark (batch and/or streaming)

Proven experience working with Databricks

Experience with Microsoft Azure data services

Strong understanding of distributed systems and data processing concepts

Experience with SQL and data warehousing concepts

Familiarity with CI/CD pipelines and version control (Git)

Ability to work independently and take ownership of complex components

Strong communication skills and ability to collaborate in cross-functional teams

Nice to Have

Experience with Spark Structured Streaming

Knowledge of Delta Lake

Experience with data governance and security in cloud environments

Background in analytics, fintech, AdTech, or large-scale enterprise data platforms

Exposure to Infrastructure-as-Code (Terraform, ARM, Bicep)

At BetSymphony, we are embarking on an ambitious project to revolutionize the online gambling industry. Our vision is to develop a cutting-edge gambling platform that will serve as the backbone for multiple different brands, each with its unique identity and target audience. This platform will leverage the latest technologies to ensure a seamless, secure, and engaging experience for users across the globe.

As a Scala Tech Lead on our team, you will play a pivotal role in bringing this vision to life. You will be involved in every stage of the development process, from initial design to deployment, focusing on creating a scalable, high-performance backend system that can support the diverse needs of multiple brands.

Working on this project will expose you to the latest technologies and challenges in software development, offering ample opportunities for growth and innovation. You will be part of a dynamic team that values creativity, collaboration, and a commitment to excellence.