Jobs

Turnitin is seeking a Principal Fullstack/Backend Engineer with a strong focus on backend development, particularly in Java and serverless architectures. This role is ideal for engineers passionate about building scalable distributed systems, data modeling, and delivering high-performing, reliable software solutions for our award-winning educational platform.

As a core contributor to our shared services team, you will play a key role in developing and enhancing the foundational systems that power both existing and new applications. This role is fully hands-on, requiring active involvement in coding, development, and implementation of technical solutions.

Responsibilities: 

• Lead and design, development, and optimization of scalable backend services using Java and serverless technologies (e.g., AWS Lambda).
• Architect and implement RESTful APIs and event-driven systems to support high-performance, distributed applications.
• Provide technical leadership to the team, ensuring alignment with architectural standards and best practices.
• Contribute to the development and integration of user-facing frontend components when needed.
• Analyze and optimize existing services to enhance performance, scalability, and cost-efficiency.
• Collaborate with cross-functional teams, including Architects, Product Managers, and engineering leads, to deliver innovative and impactful solutions.
• Mentor and guide junior developers, fostering a culture of continuous learning and knowledge sharing.
• Oversee the implementation and maintenance of CI/CD pipelines to ensure efficient and reliable software delivery.
• Maintain high standards of code quality through rigorous peer reviews, comprehensive testing, and adherence to industry best practices.
• Create comprehensive documentation for the developed shared components, including usage guidelines and examples.

Requirements:

• Over 10 years of experience in backend development with deep proficiency in Java and extensive hands-on experience with serverless frameworks (e.g., AWS Lambda, Google Cloud Functions).
• Solid understanding of frontend technologies, including React and Web Components, with the ability to contribute when needed.
• Expertise in designing and managing distributed systems, ensuring scalability, and advanced data modeling techniques.
• Demonstrated ability to lead and collaborate effectively with cross-functional teams and stakeholders across multiple locations, including distributed teams in Europe and the USA, to deliver impactful, high-quality solutions.
• Practical expertise in cloud technologies, specifically developing serverless applications on AWS using services such as Lambda, DynamoDB, API Gateway, SNS/SQS, and EventBridge.
• Deep understanding of software development best practices, including design patterns, test-driven development (TDD), and clean code principles.
• Experience implementing and managing CI/CD pipelines for automated build, deployment, and testing.
• Familiarity with modern DevOps practices and infrastructure-as-code (IaC).
• Proven ability to conduct comprehensive system design reviews, ensuring architectural alignment, scalability, performance, and adherence to best practices.
• Proven experience as a Tech Lead, with a strong track record of mentoring and coaching junior engineers, promoting skill development, and driving adherence to best practices to ensure team growth and technical excellence.
• Exceptional collaboration skills, working effectively across cross-functional teams, including Product Managers, Architects, and other engineering leads.
• Ability to communicate complex technical concepts clearly to both technical and non-technical stakeholders.
• Strong problem-solving skills, with a track record of troubleshooting and optimizing existing systems for performance, scalability, and cost efficiency.
• Ability to make strategic technical decisions while balancing project deadlines and business goals.

• Preferred Skills:
• Experience with frontend technologies such as React, Angular, or Web Components is a plus.
• Familiarity with monitoring and observability tools (e.g., CloudWatch, New Relic, Datadog).
• Knowledge of data modeling and working with both NoSQL databases.
• Understanding of agile methodologies, including Scrum and Kanban.
• Understanding or experience with AI/ML.

👨‍💻We invite a Junior/Middle Java Developer to join our team for long-term cooperation.  
 
Gransoft develop an international health insurance portal.  
 
Our project has become especially important at this time.  
 
 

▪️Office Location: Uzhhorod or Gdansk 

(our company provides a relocation assistance, expenses reimbursement and accommodation if required)  
 
 

Requirements:  
 
— Strong and confident knowledge of Java, Hibernate, Spring, MySQL

— Experience with any software development 2+ years 
 Experience with Java provides a significant advantage
 
— An intermediate-level proficiency in English: reading, writing and speaking 
 
— Responsible attitude to the tasks and deadlines  
 
— Work from office only  

We offer:  
 
— Interesting and challenging project
 
— Creative and friendly atmosphere 
 
— Our company policy is to welcome your ideas and suggestions 
 
— An international team of experienced Java developers  
 
— Paid vacations and days off during national holidays  
 
— Flexible work schedule  
 
— 8-hour workday  
 
— Office in Uzhhorod or Gdansk 
 
— Paid English language courses
 
— Our company provides a relocation assistance, expenses reimbursement and accommodation if required 
 
 

More details could be given during an interview  
 
Please include your Telegram username in CV

The client is looking for a Java backend developer to accelerate product development and get more done for the overall roadmap for their flagship workforce management offering HotSchedules Labor. Currently, the team is international with Engineers and QA Engineers from Ukraine, Latin America, and the US. This will be a perfect opportunity to master your English language skills, as many meetings are conducted in English. Most developers in the team are full-stack developers, although the backlog is heavier on backend tasks.
 

Tech stack - Java 11/17, Spring: Databases: MS SQL, DynamoDB, clouds - Azure and AWS. 
 

Requirements:

• Strong expertise in Java 11; exposure to Java 17 or newer versions is a plus
• Practical experience with the Spring Framework
• Good knowledge of JavaScript, HTML, and CSS
• At least 2 years of hands-on experience with ReactJS is an advantage
• Proven experience with cloud platforms such as AWS or Azure
• Solid understanding of Kubernetes and Terraform (mandatory)
• Experience in deploying and managing infrastructure, including serverless solutions and Kubernetes services (mandatory)
• Strong ability to diagnose and resolve infrastructure issues is highly desirable
• Familiarity with a variety of AI tools
• Upper-intermediate English proficiency or higher
   

Responsibilities: 

• Develop new features from the product backlog
• Develop REST services to support high-volume, low-latency web and mobile apps
• Design and implement DB schema to allow new functionality
• Maintain existing codebase
• Define and evolve infrastructure to host various Java services
   

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

*not applicable for freelancers

About the Client and Product:

Our client provides one of the world’s leading online video platforms, designed to power live streaming, online presentations, live conferences, events, tutorials, and training sessions. Leveraging cutting-edge browser-based video capture technologies, the platform can support thousands of simultaneous viewers during live events.

Built with advanced video pipeline technologies used by leading organizations like Amazon Video and Netflix, the platform encodes and streams millions of minutes of video content annually, making it a key player in the digital video space.

 

About the Role:

We are seeking a GenAI-focused Engineering Lead to drive the design and implementation of cloud-native software solutions enhanced by generative AI capabilities. In this role, you will collaborate with clients, product teams, and developers to deliver high-quality architectures that are scalable, intelligent, and future-ready.

You will guide and mentor a team of engineers, ensuring alignment with architectural vision and best practices, while spearheading the adoption of modern GenAI technologies to unlock automation, personalization, and next-gen product experiences.

Requirements:Key ResponsibilitiesTechnical Leadership

• Collaborate with clients and stakeholders to gather technical and business requirements, with a focus on GenAI-driven opportunities.
• Define robust, scalable solution architectures that incorporate generative AI models (e.g., LLMs, RAG pipelines, embeddings).
• Select appropriate technologies, cloud services, and AI/ML frameworks to achieve product goals.
• Lead technical discussions and trade-off analysis related to GenAI integration, cloud-native design, and system scalability.

Solution Design & Development

• Provide high-level effort estimations using standard methodologies.
• Define implementation roadmaps and maintain clear, prioritized technical backlogs.
• Lead the development of prototypes and PoCs integrating GenAI capabilities such as conversational agents, content generation, and intelligent automation.
• Actively participate in development activities, contributing hands-on to model integration, vector database design, and inference optimization.

Product Oversight

• Review and document solution architecture, ensuring optimal performance, reliability, and AI model lifecycle management.
• Oversee development teams to ensure implementation aligns with architectural and GenAI standards.
• Support long-term product strategy by evolving AI-powered features and continuously aligning with business and user needs.

Mentorship & Knowledge Sharing

• Mentor engineers on architecture principles, software development best practices, and GenAI design patterns.
• Translate complex GenAI concepts into clear, actionable guidance for both technical and non-technical audiences.
• Foster a learning culture by promoting experimentation, AI literacy, and knowledge exchange within the team.

Desired QualificationsCore Expertise:

• 7+ years of professional software development experience.
• 3+ years in a technical leadership or software architecture role.
• Proven experience designing scalable and maintainable system architectures.
• Strong backend engineering skills with Java, Spring, AWS, REST APIs, and relational databases (e.g., MySQL).
• Practical experience deploying GenAI solutions in production (e.g., LLM integration, RAG, model tuning, prompt engineering).

Technical Skills

• Strong grasp of object-oriented and functional programming concepts.
• Deep understanding of architectural patterns, system design principles, and trade-offs.
• Familiarity with modern software development methodologies and clean coding practices.
• Advanced knowledge of UML and documentation standards.
• Foundational understanding of front-end technologies (HTML, CSS, JavaScript) and user-centered design principles.
• Experience with AI/ML platforms and tools such as TensorFlow, PyTorch, AWS SageMaker, HuggingFace, or LangChain.
• Ability to assess AI model performance and suggest enhancements or fine-tuning strategies.

Soft Skills

• Strong leadership, mentorship, and team coaching abilities.
• Clear communication and interpersonal skills, especially in cross-functional environments.
• Upper-Intermediate or higher level of English proficiency.

Analytical & Organizational Abilities

• Ability to analyze, monitor, and optimize system and model performance.
• Solid decision-making and risk management capabilities.
• Strong planning and estimation skills to drive delivery and stakeholder alignment.

Preferred Skills

• Hands-on experience with the AWS ecosystem (Lambda, ECS, S3, DynamoDB, etc.).
• Familiarity with agile development methodologies and frameworks.
• Experience building AI copilots, chatbots, or GenAI-powered automation flows.

Benefits

We gladly offer:

• Work in a flexible, Agile, and multinational team where innovation and collaboration drive success.
• Leverage your skills and experience to develop state-of-the-art software products while expanding your expertise in cutting-edge technologies.
• Gain access to training and learning opportunities to grow your skillset and stay ahead in the ever-evolving tech landscape.
• Work with leading global clients across industries and become a domain expert in AWS and cloud-based solutions.
• Enjoy a modern office located in the city center, providing a dynamic and inspiring workspace.
• Benefit from the flexibility to work both remotely and on-site, allowing you to balance professional and personal commitments effectively.

We are seeking an experienced Lava Lead with a strong Java and distributed systems background to lead our cross-functional team based in Poland. This role combines deep technical expertise with people leadership responsibilities across backend and mobile engineering.
Our client, headquartered in California, is a global e-commerce leader connecting millions of buyers and sellers in over 190 markets. You will lead a team delivering cutting-edge AI/ML-powered experiences that transform the way people shop and sell online.

Your Role:
As an Java Lead, you will be responsible for the technical direction, people development, and delivery execution of a high-performing team. You will collaborate closely with product, AI/ML, and platform teams to design and deliver scalable features, ensuring operational excellence, clean architecture, and reliable services.

Key Responsibilities

• Lead and mentor a cross-functional team of backend (Java/Kotlin) and mobile engineers (iOS/Android)
• Drive architecture and design decisions for large-scale, distributed systems
• Provide technical leadership in areas such as API contracts (FGQL, REST, WebSockets), service integration, and performance optimization
• Promote best practices in observability, including metrics, tracing, and alerting
• Organize and lead on-call rotations, ensuring effective incident response and root-cause analysis
• Partner with product and ML stakeholders to define scope, set priorities, and ensure delivery of impactful solutions
• Conduct regular code and design reviews, contributing hands-on when needed to guide complex implementations

• Foster a culture of ownership, technical excellence, and continuous improvement

   

Qualifications:

• 2+ years of experience as Tech Lead with direct team leadership responsibilities
• 7+ years of backend development experience with Java or Kotlin
• Deep expertise in designing scalable distributed systems and microservices architectures
• Strong understanding of API contract design and maintenance: FGQL, REST, WebSockets
• Solid experience with Spring Framework and related Java/Kotlin tooling
• Hands-on experience leading teams through operational responsibilities, including on-call rotations
• Proficiency in modern observability practices: logs, metrics, tracing, incident response
• Excellent English communication skills (C1 level or above)

• BSc or MSc in Computer Science, Engineering, or a related technical field.

   

Preferred Qualifications:

• Experience with Apache Kafka or other real-time streaming systems
• Knowledge of reactive programming (e.g., Project Reactor)
• Experience with Docker and Kubernetes in a production environment
• Exposure to AI/ML-based applications or infrastructure

• Experience in e-commerce or consumer-facing platforms operating at scale

   

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

*not applicable for freelancers

About Us

wallee is a payment technology company that enables merchants to accept omnichannel payments - whether online in web shops, on mobile devices, unattended kiosks or in physical outlets with terminals. Our software engineers are working on a variety of projects ranging from big data systems to dedicated merchant integrations. We’re driven by constantly improving the customer experience and enhancing the customer journey to satisfy our customers and consumers. We’re using the latest technologies and tools.

wallee requires a team of experienced and versatile software engineers to achieve our mission of providing the best payment experience to customers on the market. We use Scrum processes to organize our teams in multiple countries. We build technology leading payment systems that require a high degree of robustness, scalability and security. As we’re disruptors of the payment market we’re constantly pushing our solutions into new areas.

We are looking for a Java Software Engineer to join our team.

Requirements

Your Role

As a Java Engineer, you will:

• Lead and mentor junior team members by acting as a technical point of contact and guiding stream and chapter initiatives.
• Collaborate with the technical leader and the other senior engineers to architect and develop robust, scalable Java applications while ensuring adherence to industry best practices and coding standards.
• Collaborate with product owners and cross-functional teams to translate requirements into technical designs and actionable sprint tasks.
• Drive continuous improvement by identifying process enhancements and integrating modern Java technologies into the development workflow.
• Facilitate knowledge sharing and technical discussions, fostering a culture of collaboration and innovation within the agile environment.
• Oversee the end-to-end development lifecycle, ensuring quality, performance, and timely delivery of mission-critical features.

What We’re Looking For

We’re looking for someone eager to learn and grow and ready to impact our team significantly. You should have:

• Java Expertise (4+ Years): Proven experience building complex back-end systems using Java, with a firm grasp of modern frameworks and best practices. Familiarity with Java 21 (or similarly recent versions) is highly preferred.
• A Bachelor’s / Master's degree in Computer Science, Software Engineering, or a related field.
• Extensive hands-on experience with the Spring Framework to develop scalable, high-performance applications.
• A solid SQL foundation and practical experience using ORM tools such as Hibernate or JPA. Familiarity with RDS, PostgreSQL, or other RDBMS is a plus.
• Deep understanding of API-first development, including RESTful principles, proper versioning, and strategies for ensuring scalability and maintainability.
• Practical knowledge of Docker and containerisation practices to streamline development and deployment workflows.
• Experience architecting and deploying software in distributed, highly available environments.
• A commitment to writing clear, maintainable code and leveraging appropriate design patterns to ensure robust solutions.
• Excellent communication skills, a strong sense of ownership, and the ability to thrive in our small, close-knit team environment.

Bonus Points

While not required, the following skills and experiences would make you stand out:

• Hands-on experience with AWS services to seamlessly integrate with our cloud infrastructure.
• A proven track record in designing or managing multi-tenant architectures and payment platforms demonstrates your ability to handle complex, high-transaction environments.
• Proficiency in reactive programming using Java frameworks (e.g., Spring WebFlux, Quarkus) to develop resilient, scalable, and responsive applications.

Benefits

• A modern, safe working environment with flexible structures and flat hierarchies.
• Opportunities to work on innovative technologies and shape our products with your expertise.
• Collaboration with motivated colleagues in an agile and forward-thinking environment.
• Numerous personal and professional development opportunities.

Description

Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.

At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. As additional there are opportunities to work with medical devices, in scope of end-to-end testing.

Requirements

• Minimum of 7 years of experience in software development, with a focus on designing and implementing highly scalable web applications, data pipelines, and cloud-based microservices
• Proficiency in Java programming language and related technologies. Experience with frameworks such as Spring, Hibernate, and Apache Kafka, and cloud-native services is highly desirable
• Proven experience in UI/Angular development
• Strong understanding of database concepts and experience with SQL and NoSQL databases (e.g., MySQL, Oracle, Cassandra, DynamoDB, Redis).
• Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and experience deploying applications in cloud environments is advantageous
• Experience with microservices and event-driven architectures
• Strong analytical and problem-solving skills with the ability to troubleshoot complex issues and implement effective solutions
• Excellent written and verbal communication skills with the ability to articulate technical concepts clearly and effectively
• Ability to work both independently and collaboratively in a fast-paced, agile environment. Strong team player with a positive attitude and a passion for technology

Job responsibilities

• Architect, design, and develop highly scalable, reliable web scale applications, tools, and automation frameworks to meet business requirements.
• Implement cloud-based microservices leveraging event-driven architectures.
• Collaborate with cross-functional teams to design and build efficient and robust data pipelines for batch, near-real-time, and real-time processing using Java technologies.
• Optimize applications, data pipelines, and microservices for scalability, performance, and efficiency to handle large volumes of data and traffic in a cloud environment.
• Ensure adherence to coding standards, best practices, and software development methodologies. Perform code reviews and provide constructive feedback to team members.
• Implement monitoring and alerting solutions to ensure the reliability and availability of applications, data pipelines, and microservices. Participate in troubleshooting and resolution of production issues.
• Create and maintain technical documentation, including design documents, architecture diagrams, and system documentation.
• Collaborate effectively with cross-functional teams, including product management, QA, and operations. Communicate technical concepts and solutions to both technical and non-technical stakeholders.

Project Description:

One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
Work supposes close cooperation with Customer team located in Houston and following Agile principles.
Our team is senior, supportive and friendly.

Responsibilities:

• Collaborate closely with geophysicists, data scientists, and software engineers to
translate scientific domain requirements into robust on-prem or Cloud software
solutions.
• Design, develop, and maintain high-performance applications for geophysical and
geological data analysis, interpretation and visualization (e.g., seismic, horizon,
fault, velocity model, etc.)
• Present architectural designs and technical proposals to the architecture review
board.
• Ability to break down development tasks and lay out clear implementation
roadmaps.
• Implement and optimize computation algorithms
• Design and develop both thin and thick client applications that interact with cloud-
based microservices.
• Ensure high code quality through unit testing, code reviews, security hardening and
continuous integration with other domain tools
• Provide technical support and lead user troubleshooting sessions to resolve issues
and ensure smooth operation of DSG application.
• Mentor junior developers and actively contribute to architectural and
implementation decisions.
• Embrace Agile/Scrum methodologies, delivering and demonstrating working
solutions at the end of each sprint
• Stay current with emerging technologies and trends in geophysical computing and
software development.

Mandatory Skills Description:

5+ years in Java development
Strong Java Core knowledge
Experience with desktop development (Swing, SWT or Eclipse RCP)

Nice-to-Have Skills Description:

Practical experience with Eclipse RCP framework
OpenGL
OSGI knowledge is a plus
Oil&Gas domain experience is a plus

Languages:

English: B2 Upper Intermediate

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

We are looking for a passionate and dedicated Middle Java Developer (Rules Engine) to join our team in Lviv!
 

About the job:

It is a part of EveryMatrix platform that is responsible for collecting, storing, processing and utilizing hundreds of millions of transactions from the whole platform every single day. We develop Business Intelligent solutions, reports, 3rd party integrations, data streaming and other products for both external and internal use. The team consists of 35 people and is located in Lviv.
We are looking for motivated, proactive developers willing to learn modern technologies, working in a challenging and fast-paced environment. You will be working in small cross-functional Agile teams responsible for the end-to-end development and component support using the You Build It, You Run It’ principle.
 

    What You'll get to do:

• Extend and optimize the Rules Engine.
• Collaborate with cross-functional teams to deliver innovative solutions.
  
  What You need to know:
   
• Java Core: Deep understanding of collections, performance tuning, type systems, garbage collection, and exception handling.
• Multithreading & Concurrency: Expertise in managing asynchronous computations and ensuring thread safety.
• HTTP & RESTful Services: Strong experience in developing and consuming RESTful services.
• RDBMS & SQL: Proficiency in writing complex SQL queries and a solid understanding of RDBMS theory.
• Spring Boot: Practical experience with the Spring ecosystem, including a strong theoretical foundation.
• Apache Kafka: Proven experience with Kafka, including both practical application and theoretical knowledge.
• Unit/Integration Testing: Demonstrated ability to write testable code with adequate coverage.
  
  Nice to Have:
  • Experience with Docker & Kubernetes.
  • Experience with the Google Cloud platform.
  •Knowledge of Online Casino/Sports Systems.
   

Here's what we offer:
 

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• Stay Healthy: 10 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.
 

Benefits & Perks:
 

• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference!

• We are building the platform, which supports various information gathering and processing across the bank and providing access to this data through both private and public cloud approach. The solution will be built from the scratch using the latest technologies.

• Responsibilities:

  - Write good and well-tested code using Java
  - Write Test Cases and User/Supporter Documentation of your code
  - Development environment support (mostly automation using Jenkins CI, Bash)
  - Evaluate and adopt new development tools, libraries and approaches to improve quality
  - Perform peer code review of project codebase changes

   

• Mandatory Skills Description:

  - At least 6+ years of experience in the industry of software development
  - At least 6+ years of experience in Java
  - Deep knowledge and usage of SQL (Oracle or PostgreSQL dialects is preferable)

   

• Nice-to-Have Skills Description:

  - Experience with Messaging Systems: RabbitMQ, Kafka, etc.
  - Experience with Kubernetes and Docker
  - Linux user

   

• Languages:
  • English: B2 Upper Intermediate

Project Description:

We are building the platform, which supports various information gathering and processing across the bank and providing access to this data through both private and public cloud approach. The solution will be built from the scratch using the latest technologies.

Responsibilities:

- Write good and well-tested code using Java
- Write Test Cases and User/Supporter Documentation of your code
- Development environment support (mostly automation using Jenkins CI, Bash)
- Evaluate and adopt new development tools, libraries and approaches to improve quality
- Perform peer code review of project codebase changes

Mandatory Skills Description:

- At least 6+ years of experience in the industry of software development
- At least 6+ years of experience in Java
- Deep knowledge and usage of SQL (Oracle or PostgreSQL dialects is preferable)

Nice-to-Have Skills Description:

- Experience with Messaging Systems: RabbitMQ, Kafka, etc.
- Experience with Kubernetes and Docker
- Linux user

Languages:

English: B2 Upper Intermediate

Our Mission and Vision

At Solidgate, our mission is clear: to empower outstanding entrepreneurs to build exceptional internet companies. We exist to fuel the builders — the ones shaping the digital economy — with the financial infrastructure they deserve.

Key facts:

—Offices in Ukraine, Poland, and Cyprus
—250+ team members
—200+ clients went global (Ukraine, US, EU)
—Visa and Mastercard Principal Membership
—EMI license in the EU
 

Solidgate is part of Endeavor — a global community of the world’s most impactful entrepreneurs. We’re proud to be the first payment orchestrator from Europe to join — and to share our expertise within a network of outstanding global companies.

We believe the future of payments is shaped by people who think big, take ownership, and bring curiosity and drive to everything they do. That’s exactly the kind of teammates we want on board.

Our advantages:

—A product with impact: Work on a product with a powerful backend architecture, complex business logic, and a modern tech stack
—A strong engineering culture: Our engineers don’t just maintain systems; they design them from the ground up
—Rapid growth: You’ll be part of a fast-scaling product, creating features that solve real business challenges
—Meaningful challenges: Tackle complex problems and see your direct impact on the company’s growth
—An A-player team: Join a team that is passionate about a common goal, united by a shared vision and values.

We’re on the lookout for a motivated and decisive Java/Kotlin Engineer to join the Core Team. You’ll have a unique chance to boost our team both in terms of capacity and quality, and make a real impact on a product currently in active development.

Our Tech Stack: Kotlin (K/JVM), Spring Boot, PostgreSQL, Hibernate, Elastic, RabbitMQ, AWS, Docker, GitLab.

Your Role:
 

—Develop key features like payment routing between providers, 3DS payment processing, payment synchronization solutions, BIN services, and asynchronous financial reporting
—Participate in designing new payment architecture
—Find robust architectural solutions for processing financial transactions within our product ecosystem
—Work on the reliability of the entire payment system
—Take ownership of critical services
—Write unit and functional tests to ensure top-notch quality

What You Need:
 

—5+ years of experience with Kotlin (K/JVM) or Java
—Knowledge of PostgreSQL or MySQL
—Experience with Spring Boot and Spring Framework
—Background in working with large systems and complex databases
—Experience with microservices architecture
—Proactive attitude and results-oriented approach
—Understanding of business processes

Bonus Points:
 

—Experience with RabbitMQ
—Knowledge of Apache Kafka
—Familiarity with GRPC
—Experience with Golang
—Background in fintech or financial sectors

At Solidgate, you’ll work on an intriguing and challenging product, contribute to building its architecture, and have a real impact on our company’s future! Join us and make a difference!

Competitive corporate benefits:
 

—more than 30 days off during the year (20 working days of vacation + days off for national holidays)
—health insurance and corporate doctor
—free snacks, breakfasts, and lunches in the office
—full coverage of professional training (courses, conferences, certifications)
—annual performance review
—sports compensation
—competitive salary
—the ability to work remotely
—Apple equipment

📩 Ready to become a part of the team? Then cast aside all doubts and click “apply”.

 

Backend Team Lead (Java)

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 

Over the past few years Coro has received $175M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role: 

This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while staying directly involved in coding, architecture, and delivery.You’ll lead Coro’s EDR (Endpoint Detection & Response) team, working on real high-load systems that process millions of telemetry events daily from customer devices and cloud providers. These systems detect anomalies, identify malicious processes, and trigger automated remediation — making this a mission-critical leadership role at the core of Coro’s product.

If you are looking for a role where you can combine leadership with coding, shape team culture, and build highly scalable backend services for a fast-growing global cybersecurity platform — this is the role for you.

Key Responsibilities: 
 

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team's various services and features
• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it

Required Competence and Skills:
 

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:
 

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 

Over the past few years Coro has received $175M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role: 

This is a hands-on role for a Senior Backend Engineer who wants to work on meaningful, high-scale systems. You’ll design, build, and maintain backend services in Java and Spring, contributing across all stages of the software development lifecycle. Coro’s backend engineers are at the heart of its EDR (Endpoint Detection & Response) and Security teams, building systems that handle millions of telemetry requests per day, processing device- and cloud-level data in real time to detect anomalies and trigger remediation.

If you’re looking for a role where you’ll solve complex challenges in distributed systems, work with modern technologies, and have a direct impact on a product protecting thousands of organizations worldwide — this is the role for you.

Key Responsibilities: 
 

• Design, implement, and maintain backend services that are reliable and scalable
• Contribute to system architecture and participate in design reviews
• Work on improving performance, scalability, and resilience of existing services
• Ensure high-quality code and take ownership from development through production support
• Collaborate with cross-functional team members (product, QA, frontend) to deliver features end-to-end
• Apply best practices in software engineering, including concurrency and performance optimization

• Actively participate in agile ceremonies and contribute to continuous improvement of team processes

   

Required Competence and Skills:
 

• 5+ years of backend/server-side development with Java
• Strong hands-on experience with Spring
• Practical experience with MongoDB
  Deep understanding of multithreaded programming and concurrency
• Solid knowledge of OOP concepts and design patterns
• Experience working with high-load systems and microservices architecture

Nice to have:
 

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with cloud-native environments (preferably AWS)
• Background in cybersecurity

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 
Over the past few years Coro has received $175M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role: 
This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while staying directly involved in coding, architecture, and delivery.You’ll lead Coro’s EDR (Endpoint Detection & Response) team, working on real high-load systems that process millions of telemetry events daily from customer devices and cloud providers. These systems detect anomalies, identify malicious processes, and trigger automated remediation — making this a mission-critical leadership role at the core of Coro’s product.

If you are looking for a role where you can combine leadership with coding, shape team culture, and build highly scalable backend services for a fast-growing global cybersecurity platform — this is the role for you.

Key Responsibilities: 

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team's various services and features

• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it

   

Required Competence and Skills:

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.