Jobs

Description:

Build a multi-step reporting web app with conditional fields, save/restore, preview, and submit. Integrate with REST APIs and support a prefill flow for Excel download and upload.
 

About the client:

We’re partnering with a product company that builds an end-to-end platform for sustainable infrastructure finance. Their software increases deal velocity and portfolio visibility for financiers and developers, while automating compliance and standardized reporting across programs (including new accomplishment-reporting requirements). The platform covers the full deal lifecycle and integrates with existing enterprise systems to reduce manual work and improve data quality.
 

Requirements:

- 5+ years with Vue 3 and modern SPA tooling (Nuxt/Vite)

- Strong experience with complex forms/wizards and state management (Pinia/Vuex)

- REST integration, routing, error handling, and auth flows

- Testing: unit (Vitest/Jest) and e2e (Playwright/Cypress)
 

Responsibilities:

- Implement a 5-phase wizard with conditional show/hide and “required” logic

- Save progress, preview, and submit (including partial/incomplete cases)

- Integrate Excel download (highlight missing fields) and Excel→form prefill

- Handle deep-link access and organization switching

- Ensure performance, accessibility, and automated testing; document UI architecture
 

Nice to have:

XLSX/CSV handling on FE (e.g., SheetJS), i18n, WCAG awareness, design-system experience

We are looking for a System Analyst with experience in telecom and IT projects to join a project for a telecom operator. You will be responsible for analyzing business needs, designing system architectures, and working closely with cross-functional teams to deliver effective solutions.

Key Responsibilities:

• Study and analyze the architecture and interaction of existing telecom, IT, and BSS systems
• Analyze business needs of internal/external clients, consider possible limitations, and design solution architecture
• Provide expert evaluation of project documentation (briefs, concepts, etc.)
• Align requirements between internal/external stakeholders and other involved parties
• Analyze complex business processes and model them using UML or BPMN

• Design system architecture and define detailed system requirements

   

Qualifications:

• Higher education, preferably in Information Technology, Computer Science, or Applied Mathematics
• Experience in telecom domain
• Experience working with systems such as Billing, CRM, DWH, and others
• At least 3 years of experience as a System Analyst in IT projects
• Knowledge of telecommunications networks (GSM, GPRS, EDGE, CDMA, etc.) and TCP/IP, Ethernet, IP infrastructure is a plus
• Understanding of REST architecture and basics of DBMS
• Experience with Jira, Confluence, and Enterprise Architect
• Strong analytical thinking, ability to gather, formalize, and document business requirements within a project/task
• Ability to adapt quickly to changing requirements and technologies
• Project management skills: project planning, RACI matrices, conducting meetings, documenting meeting notes
• Ability to effectively collaborate with different company departments (emails, meetings, tasks) and take responsibility for delivering results

• Strong communication and stakeholder management skills

   

Would be a plus:

• Experience with MS Project
• Experience with large-scale projects and working with multiple enterprise-level systems

Who we are

Xenoss is a leading MarTech/AdTech software development house, recognized among the top software companies. We build complex AI-driven ad-tech solutions for technology vendors, media and gaming companies, agencies, brands, and publishers, including Activision Blizzard, Toshiba, Smartly, Voodoo, and others.

The data platform is a central element of our solutions. Our data team works on challenging projects that involve near-real-time processing of petabytes of high-intensity streaming data. We build scalable and efficient data pipelines using cutting-edge technologies and proprietary solutions.

Required skills:

• Professional Java experience 5+ years
• OOP/design patterns proficiency
• Experience building complex systems
• SQL/NoSQL database experience
• Familiar with AWS or GCP
• Experience in the AdTech domain.

Nice to have:

— Experience with big data
— Experience with OLAP DB (Cassandra, Clickhouse)
— Experience with Neo4J
— English: B1

What will you do

As a Senior Backend Engineer, you’ll play a critical role in building and maintaining the robust foundation of our web applications. You’ll be a technical leader, tackling complex challenges and designing innovative solutions. Here’s a glimpse into what your day-to-day might look like:

— Design and implement backend systems: You’ll dive deep into the server-side, architecting and building the core logic that powers our applications. This includes designing databases, developing APIs, and ensuring scalability to handle high traffic volumes.

— Code quality: Clean, maintainable, and secure code is paramount. You’ll write well-documented, reusable code that adheres to best practices. Your expertise will ensure the long-term health and stability of our backend systems.

— Collaborate across team: You’ll work closely with front-end developers to seamlessly integrate backend functionalities with the user interface. Effective communication and collaboration are key to creating a cohesive user experience.

— Optimize performance and security: You’ll be responsible for ensuring our applications run smoothly and efficiently. This involves performance tuning, troubleshooting, and implementing robust security measures to safeguard sensitive data.

— Embrace innovation and stay ahead of the curve: The tech landscape is constantly evolving. You’ll have the opportunity to explore and implement emerging technologies to keep our backend infrastructure at the forefront.

What you will get

— Teams of people who love programming
— Complex technical challenges with big data/high-load
— Freedom to make your own engineering decisions and broad space for creativity
— Modern technology stack to work with
— Work remotely on a flexible schedule
— Long-lasting projects
— Financial compensation for professional events and education
— Opportunity to choose the equipment you like

We are seeking an experienced Senior Algo Quant Developer to join our innovative and fast-paced team, working to enhance our Algorithmic Trading Platform.

In this role, you will be instrumental in the architecture, development, and optimization of high-performance algorithmic trading strategies and systems. You will collaborate closely with quantitative researchers and engineers, implementing advanced algorithmic solutions to execute trades across global financial markets with minimal latency and maximal efficiency.

The ideal candidate has a solid background in algorithmic trading, quantitative finance, and high-performance computing, combined with expert-level skills in Python or Golang and distributed systems.

Project Stack

- Python, Java, Go, Rust
- Pandas, NumPy, FastAPI
- Kafka, gRPC
- PostgreSQL, Redis, ClickHouse
- Docker, Kubernetes, Ansible, Vault
- Prometheus, Grafana, ELK
- AWS, Linux

Requirements

- 5+ years of experience developing algorithmic trading systems or quantitative trading infrastructure.
- Expert proficiency in Python or Golang and significant experience developing low-latency systems.
- Solid understanding of algorithmic trading concepts including market microstructure, order book dynamics, execution strategies, and quantitative modelling.
- Proven expertise in developing, optimizing, and maintaining algorithmic trading engines and infrastructure.
- Strong experience with SQL and relational databases (Postgres, MySQL, etc.).
- Deep understanding of distributed systems, concurrency, and performance optimization.
- Ability to troubleshoot complex performance issues and identify root causes effectively.
- Strong knowledge of software engineering best practices, including rigorous testing and clean, maintainable code.
- Experience working in a startup environment.

Good to have

- Proficiency in additional programming languages: Java, Go, Rust, Scala.
- Hands-on experience with messaging and streaming frameworks (Kafka, RabbitMQ).
- Practical experience with column-oriented databases: ClickHouse, Vertica, Snowflake.
- Familiarity with NoSQL and distributed coordination systems: Redis, Zookeeper, Consul.
- Experience in cloud infrastructure and DevOps practices (AWS, Docker, Kubernetes).
- Previous mentoring or leadership experience.

Responsibilities

- Architect, develop, and enhance scalable, highly performant algorithmic trading systems and infrastructure.
- Optimize trading algorithms for minimal latency and maximal throughput.
- Collaborate with quantitative researchers to implement, test, and deploy advanced algorithmic strategies.
- Continuously improve system stability, scalability, and availability.
- Engage in R&D, exploring cutting-edge technologies to enhance trading capabilities.
- Maintain rigorous standards for coding, testing, and deployment processes.
- Mentor and support junior team members, fostering a culture of technical excellence and continuous learning.
- Proactively identify and implement improvements across the trading platform.

Terms

- Minimal bureaucracy, direct communication, and rapid decision-making processes.
- Opportunity to lead technological innovation in algorithmic trading with substantial impact on investment strategies.
- Collaborative, innovative, and dynamic working environment.

Duration: long term

We are in need of Senior Drupal developers (1st is long-term and more important.. the 2nd resource is not sure yet).
 

Profile

This is the prior profile:

- PRIMARY ROLE is:  DRUPAL Back End (but experience with Front End is a big plus)

- Tools used: Confluence, Jira, GitHub, AWS, Azure

- Needs proficient English (Client communication in english is needed) / This resource needs to have very solid level knowledge and experience with Drupal 8+

- Specific tool proficiency: Drupal 8+, Docker, Redis, Crons, Salesforce and Magento API integrations w/ Drupal experience.
 

Nice to have tool proficiency: AWS EKS, AWS EC2, Azure pipelines, Jenkins. Akamai.

We are looking for a skilled and motivated Cloud/DevOps Engineer with strong expirience in AWS to support the delivery and operation of a real-time data platform, microservices architecture, and PostgreSQL-based central data storage. You’ll work closely with architects and data engineers to ensure seamless CI/CD, scalable infrastructure, and reliable deployments. 
This role is key to enabling efficient development workflows and high system availability for a multi-tenant platform.
 

Our Client is a transnational company that owns numerous products within the Finance domain. The сlient platform combines market-proven payments and cash management with the customer experience and engagement capabilities that banks can use to manage their own branding, segmentation, and integration with related applications.

Requirements

• Solid Cloud AWS experience with focus on AWS Serverless
• Hands-on experience with Kubernetes, Docker, and container orchestration tools
• Working knowledge of PostgreSQL management in production
• Terraform experience
• GitOps knowledge
• xperience with monitoring, logging, and alerting frameworks
• Solid scripting and automation skills (e.g., Python, Bash, or Go)
• CI/CD tools in production environment
• Experienced building Gitlab or Jenkins pipelines and ArgoCD or Flux
• Strong understanding of networking, security, and system performance tuning.

Job responsibilities

• Collaborate with solution architects and data engineers to design a PoC architecture for migrating on-premises database data to AWS
• Participation in evaluation of different data platforms as per Lakehous criterias
• Responsible for designing, implementing, and maintaining highly available and scalable AWS infrastructure that meets business requirements and performance goals.
• Developing and managing deployment automation pipelines and processes to ensure the rapid, reliable, and secure delivery of software and infrastructure
• Development of AWS DevOps using tools such as Terraform, building CI/CD pipelines.
• Perform other duties as deemed appropriate by the management team.

We’re looking for an experienced Java/Kotlin Engineer with a background in Android development. As part of an innovative team, you’ll dive deep into the inner workings of the Android system and help deliver high-quality, enterprise-grade features based on product requirements.

Customer

Our client is a rapidly growing technology leader in digital accessibility software that helps enterprises make their web and mobile offerings accessible to everyone.

Requirements

• 5+ years of experience with Java/Kotlin
• Background in Android development combined with the ability to perform high-quality research of the Android internals
• Experience with multiple SDKs
• Familiarity with test automation frameworks such as Espresso and Appium
• Strong understanding of Android UI frameworks: Jetpack Compose, XMLs, and WebViews
• Familiarity with SDK development and integration
• Proficiency in using GitHub for version control and collaboration
• Experience with dependency management tools such as Gradle, Maven, and Jfrog
• At least Upper-Intermediate level of spoken and written English

Would be a plus

• Experience with accessibility
• Experience with Flutter and React Native
• CI/CD experience building pipelines using platforms like CircleCI or Jenkins
• Knowledge of NDK / C++ or low-level Android development topics

Personal Profile

• Proactive attitude
• Strong team player with a collaborative mindset
• Independent and self-motivated learner
• Strong problem-solving skills and attention to detail

Responsibilities

• Perform in-depth research on the inner workings of the Android system
• Deliver high-quality, enterprise-grade features according to product requirements
• Collaborate closely with the support and product management teams, as well as other teams within the mobile group
• Stay up-to-date on the latest trends and advancements in mobile development and the accessibility ecosystem to continuously improve our products and processes

At Playtika, you can get: 

• Cutting edge technologies stack as for server as for client sides 
• Amazing tech level of Playtika employees 
• Product mindset, which is felt every single day 
• Unbelievably high (even TOP) level of knowledge, professionalism, and involvements  
• Highly professional management 
• Freedom and responsibility 
• No blaming environment 

Requirements: 

• Deep knowledge of Java Core, Spring Framework Stack 
• Deep knowledge of concurrency, resiliency, caching 
• Experience with Microservice architecture
• Experience with NoSQL DB (key-value based, document-based) 
• Experience with messaging frameworks(like Kafka)
• Experience in testing frameworks 
• Understanding of Clean code principles
• Nice to have experience with reactive frameworks(Project Reactor)
• English Intermediate. 

We offer all our employees:

• Competitive salary, performance-based bonuses and flexible working hours
• Social package, including sports and enrichment classes compensation, medical insurance with dental coverage
• Own educational platform with courses, training programs, certifications
• Annual salary review
• 20 working days paid vacation and sick leave
• Corporate celebrations, team buildings and fun activities
• Free meals twice a day, refreshments
• Technical library with option to order books
• Coaching and reviews to support your career development
• Internal mobility program
• Help and support for candidates from other cities
• Working for one of the top social gaming companies in the world

*Looking for candidates based in Kyiv 

A product company is looking for an Application Security Engineer to join the team in Warsaw.

✔️ About the company:
Global market leader in live-streaming with over 450M registered users. Its B2C mobile platform allows millions of creators worldwide to connect with their fans and monetize their talents. The company was founded in 2018 in the USA and is powered by a team of 350+ employees around the globe.

✔️ What they offer:

• Stock options
• Medical insurance (100% coverage for employees, 75% for family members)
• Office lunches
• Parking
• Multisport card

✔️ Requirements:

• Proven experience in cybersecurity and Application Security
• Hands-on experience with mobile app security
• Spoken English

Description

We are a cross-functional international team collaborating globally on a major insurance product with integrated e-billing functionality. We are seeking a Business Analyst to connect business and technical teams, capturing and refining requirements, supporting backlog prioritization, and helping ensure smooth delivery from concept to implementation.

Requirements

5+ years of experience as a Product Owner, Business Analyst, or similar role in an Agile environment.
Strong experience in defining and prioritizing requirements for software products or systems.
Proficiency in writing user stories, defining acceptance criteria, and managing product backlogs.
Solid understanding of Agile methodologies (Scrum, Kanban, etc.) and ability to work within Agile frameworks.
Excellent communication and stakeholder management skills.
Strong analytical and problem-solving abilities to translate complex business needs into technical requirements.
Experience with business process modeling, requirements gathering, and documenting workflows.
Ability to work with cross-functional teams (developers, QA, designers, etc.) to deliver value-driven solutions.
Experience with tools like JIRA, Confluence, or similar project management and documentation tools.
Ability to manage competing priorities in a fast-paced environment while maintaining a customer-centric focus.
Leadership qualities in driving teams toward product goals, ensuring clear communication, and motivating cross-functional collaboration.

Job responsibilities

Act as the proxy for the Product Owner, representing their interests in day-to-day activities and ensuring product goals are met.
Collaborate with business stakeholders to gather, analyze, and define clear business requirements and transform them into actionable user stories and acceptance criteria.
Prioritize product backlog items based on business value, customer needs, and technical constraints in close alignment with the Product Owner.
Work with development teams to ensure understanding of user stories, addressing any questions and facilitating clarification where necessary.
Analyze and document business processes, workflows, and use cases to ensure the development of features that align with business objectives.
Lead and facilitate requirements workshops, sprint planning, and backlog grooming sessions.
Support release planning and roadmap creation, ensuring that features are delivered on time and within scope.
Monitor product performance and gather user feedback to iterate on features and improve product value.
Act as a liaison between the development team, QA, and business stakeholders to ensure alignment on priorities and timelines.
Contribute to the continuous improvement of Agile practices and processes within the team.
Track and report on product progress, issues, and risks to senior leadership and other stakeholders.
Assist in user acceptance testing (UAT) and ensure that features meet business requirements before release.

Our final client is a US-based Insurtech company, building advanced solutions in insurance technology with a focus on intelligent document processing and AI-powered search.

Requirements

• Experience with AI Foundry.
• Strong background in Content Understanding / Document Intelligence.
• Hands-on expertise in AI Search.
• Proficiency in Python.
• Knowledge of classification modelling.
• Familiarity with Azure services (Blob storage, database storage, functions, etc.).

Responsibilities

• Contribute to the design and implementation of AI-driven solutions for document processing and search.
• Collaborate with cross-functional teams to integrate AI models into production workflows.

• Ensure scalability, reliability, and accuracy of AI-powered services.

   

Nice to Have

• Experience performing complex document AI analysis, including images.
• Background in training machine learning models with new datasets.
• Practical knowledge of data and server security (Azure).
• Strong communication and collaboration skills for working with developers, clients, and managers.
• Understanding of how to test and measure model accuracy.
• A solution-oriented/architecture mindset combined with hands-on delivery skills.

Conditions

• Duration: 3 months (short-term contract).
• Format: Full-time, remote.
• Client domain: Insurtech, USA.

You will own APIs, data models, and Excel import/export pipelines for the reporting platform. Key responsibilities include implementing conditional field rules, secure access control, multi-tenant context, and auditing.

About the project
We are partnering with a product company that is building an end-to-end platform for sustainable infrastructure finance. The platform helps financiers and developers accelerate deal velocity, increase portfolio transparency, automate compliance, and standardize reporting in the field of green finance.

Requirements

• 4+ years of experience with Java 21, Spring Boot (REST, JPA/Hibernate).
• Strong SQL skills (schema design, migrations, indexes).
• Queues / background jobs (Kafka, RabbitMQ, Spring Batch).
• Experience with Excel pipelines (Apache POI or similar).
• AuthN/AuthZ, multi-tenant environments, OpenAPI/Swagger.

• PostgreSQL, JUnit tests.

   

Nice to have

• Rule/policy engines (Drools), ETL/reporting experience.
• AWS S3 / Azure Blob storage.
• Observability (OpenTelemetry), Docker/Kubernetes, Elasticsearch.

Conditions

• Start: September/October.
• Format: Full-time, remote.
• Engagement: B2B contract.

You will build a multi-step reporting web app with complex conditional logic, Excel integration, and REST API connectivity. The solution will enable users to complete accomplishment-reporting flows with save/restore, preview, submit, and prefill options.

About the project
We’re partnering with a product company building an end-to-end platform for sustainable infrastructure finance. Their software helps financiers and developers accelerate deals, increase portfolio visibility, and automate compliance and reporting. The platform covers the full deal lifecycle and integrates with enterprise systems to improve data quality and reduce manual work.

Responsibilities

• Implement a 5-phase wizard with conditional logic and validations.
• Support save progress, preview, submit (including partial/incomplete).
• Integrate Excel download with missing-field highlights and Excel→form prefill.
• Handle routing, deep-link access, and organization switching.

• Ensure performance, accessibility, automated testing, and proper UI documentation.

   

Requirements

• 5+ years with Vue 3 and SPA tooling (Nuxt/Vite).
• Strong experience with complex forms/wizards and state management (Pinia/Vuex).
• REST integration, routing, error handling, and auth flows.
• Testing: unit (Vitest/Jest) and e2e (Playwright/Cypress).

Nice to have

• XLSX/CSV handling on FE (SheetJS or similar).
• i18n, WCAG awareness, design-system experience.

Conditions

• Format: Full-time, remote.
• Engagement: B2B contract.
• Domain: FinTech / Sustainable Infrastructure.

About the Product:
Our client is a leading SaaS company offering pricing optimization solutions for e-commerce businesses. Its advanced technology utilizes big data, machine learning, and AI to assist customers in optimizing their pricing strategies and maximizing their profits.

About the Role:
As a Senior Data Engineer, you will operate at the intersection of data engineering, software engineering, and system architecture. This is a high-impact, cross-functional role where you’ll take end-to-end ownership – from designing scalable infrastructure and writing robust, production-ready code to ensuring the reliability and performance of our systems in production. 

Key Responsibilities:

• Build and maintain ETL/ELT pipelines from APIs, Kafka, and databases.
• Design and manage Airflow DAGs that are modular and observable.
• Optimize our data lake architecture on S3 and Athena for performance and scalability.
• Develop and support real-time and event-driven data flows using Kafka and Spark.
• Implement monitoring, data validation, and alerting to ensure pipeline reliability.
• Expose clean and structured datasets for internal consumption via Athena or APIs.
• Collaborate with DevOps and the architect to evolve data infrastructure.

Required Competence and Skills:

• 5+ years of experience as a data engineer, software engineer, or similar role, with a proven track record of using data to drive business outcomes. 
• Strong Python skills, with experience building modular, testable, and production-ready code.  
• Solid understanding of Databases and SQL, ETL/ELT design, and distributed data processing.
• Experience with Airflow, Kafka, S3, Athena, Glue, and CI/CD practices.
• Excellent communication and collaboration skills, proactive approach.

Nice-to-Haves

• Experience with streaming technologies (Flink, Spark Streaming).
• Experience building internal tools, APIs, or SDKs.
• AWS Certified Data Analytics – Specialty or AWS Certified Big Data – Specialty certification (current or expired).

Job Type: Full-time, Long-term

English level: B2+ (Upper-Intermediate)

Requirements

• 5+ years of overall engineering experience, including 1+ year in AI/ML
• Solid knowledge of Python and Node.js (TypeScript)
• Hands-on experience with LLMs (fine-tuning, deployment, optimization) — OpenAI, Llama, Claude, Gemini, Grok
• Strong background in NLP: prompt engineering, embeddings, semantic search
• Experience with vector databases (Pinecone, Weaviate, Faiss, etc.)
• Familiarity with LLM orchestration frameworks (LangChain, LangGraph, LlamaIndex)
• Experience with containerization tools (Docker, Kubernetes)
• Good understanding of evaluation methods and metrics for LLMs
• Strong communication skills in English (B2+)

Responsibilities

• Design, implement, and optimize LLM-based applications for production use
• Fine-tune, deploy, and monitor models across different providers (OpenAI, Llama, Claude, Gemini, Grok)
• Build and maintain scalable pipelines for embeddings, semantic search, and retrieval
• Integrate and optimize vector databases for large-scale AI applications
• Apply and improve prompt engineering techniques for real-world use cases
• Collaborate with backend engineers to integrate AI services into broader systems
• Define and apply evaluation methods and benchmarks for AI models
• Stay up to date with the latest advancements in AI/ML research and tools

Nice to Have

• Experience with MLOps (CI/CD for ML models, monitoring, logging)
• Knowledge of distributed systems and cloud-native architectures
• Background in computer vision or multimodal AI (images, video, audio)
• Publications, open-source contributions, or personal AI/ML projects
• Familiarity with security and compliance considerations for AI applications