Jobs Backend

Build data-intensive systems that actually scale. Own distributed processing, not just services. Shape how large-scale data flows power products.
 

We’re looking for a Senior Scala / Data Engineer for one of our clients — a company operating in a data-heavy, distributed systems environment. This is a hands-on role for someone with a strong Scala background who has built and optimized high-performance data systems in production.

This role is for someone who takes full ownership of distributed data systems — from architecture to performance. You’ll work on complex, large-scale data processing challenges where efficiency, scalability, and fault tolerance are critical.
 

Your responsibilities will include:

• Build and optimize distributed data processing systems using Scala;
• Design and implement high-throughput, low-latency data pipelines;
• Work with big data frameworks (e.g., Spark) and distributed architectures;
• Develop and maintain scalable backend services for data-intensive workloads;
• Optimize performance of data processing jobs and infrastructure;
• Ensure fault tolerance and resilience of distributed systems;
• Implement monitoring, logging, and observability for data pipelines;
• Collaborate with engineering teams to design scalable system architectures;
• Contribute to cross-functional backend and data engineering efforts;
• Ensure high standards of code quality, performance, and reliability.
   

What we expect from you:

• Strong experience with Scala in production environments;
• Proven experience as a Senior Data Engineer or Backend Engineer in data-heavy systems;
• Strong understanding of distributed systems and parallel processing;
• Experience with big data technologies (Spark, Kafka, etc.);
• Strong knowledge of JVM ecosystem and performance tuning;
• Experience building high-load, scalable systems;
• Strong system design and architectural thinking;
• Ability to work independently and take ownership;
• Strong problem-solving skills in complex, distributed environments;
• English level: B2+ (C1 preferred);
• Availability to work in EU timezone.
   

Nice to have:

• Experience with functional programming paradigms;
• Experience with cloud infrastructure (AWS / GCP);
• Experience with stream processing frameworks (Flink, Akka Streams);
• Background in low-latency or real-time systems;
• Experience in niche or hard-to-hire tech domains.
   

We offer:

• Six-month full-time contract engagement;
• Remote work with overlap in US business hours;
• High-impact project with direct influence on production AI systems;
• Close collaboration with client’s product and engineering teams;
• Opportunity to build core infrastructure for real-world AI applications — not prototypes.

We’re looking for a Senior Backend Engineer to join a long-term remote role with one of our US-based clients in the hospitality / hotel tech space.

This is not a pure maintenance role. The team is actively evolving the architecture, improving the product, and building scalable solutions for a growing platform.

The ideal candidate is someone who is strong in Python, comfortable working with TypeScript, and able to make solid technical decisions independently.

Main requirements

• 5+ years of professional experience with Python — Django or FastAPI.
• Strong experience with TypeScript.
• Experience working with Google Cloud Platform — GCP.
• Advanced English level — C1.

• Experience with hotel / hospitality management systems is a strong plus.

   

Technical background we’re looking for

Strong understanding of Object-Oriented Programming, including encapsulation, inheritance, polymorphism, abstraction, SOLID principles, design patterns, dependency injection, and inversion of control.

Experience with software architecture concepts, including MVC / MVVM, RESTful API design, microservices vs monolithic architecture, separation of concerns, modular code organization, and Domain-Driven Design basics.

Good knowledge of data structures and algorithms, including arrays, hash tables, trees, graphs, sorting and searching algorithms, Big O notation, and efficient problem-solving.

Strong focus on code quality and best practices, including Clean Code, DRY, KISS, refactoring, code reviews, documentation, and maintainable development practices.

Experience with performance and optimization, including application performance, database query optimization, caching strategies, profiling and debugging tools, and memory management.

Understanding of security best practices, including OWASP Top 10, authentication and authorization, data validation and sanitization, SQL injection, XSS and CSRF prevention, secure data storage, encryption, and API security.

Solid experience with Git and development workflows, including branching, merging, rebasing, conflict resolution, Gitflow or trunk-based development, pull requests, code reviews, and semantic versioning.

Soft skills

• Ability to work independently and make technical decisions.
• Strong analytical and problem-solving skills.
• Self-motivated and proactive mindset.
• High attention to detail and code quality.
• Good time management and prioritization.
• Continuous learning mindset.

• Strong communication skills in English.

   

Nice to have

• AWS services such as S3 or CloudWatch.
• Oracle Hospitality or similar PMS integration experience.
• Previous experience in hospitality / hotel tech.

Work schedule

The schedule is aligned with Hawaii — HST and Pacific — PST time zones.

Work conditions

• Remote, full-time role.
• Diverse and challenging projects.
• Supportive and collaborative team.
• 12 vacation days per year.
• 5 sick days per year.
• English classes.
• Therapist and psychologist support for mental well-being.

About the project
Our client is a global enterprise software company building an AI-powered, RAG-based documentation platform delivered as production-grade SaaS. The platform is a set of ~10 containerized microservices — predominantly Python, with React front-ends — running fully on Microsoft Azure (App Services, Functions, Data Factory, AI Search, Blob Storage, Key Vault).

The team is hardening the platform for production: standardizing CI/CD, consolidating repositories into a single monorepo, introducing observability and a structured test-automation framework, and preparing for multi-region rollout (US, Europe, Asia). Development is heavily AI-assisted — currently 15–20 merge requests per week — so disciplined review and strong test automation are central to keeping quality and velocity in balance.

The client's existing team spans the US and India. This role is intended to anchor delivery from an overlapping European time zone: starting as a hands-on technical lead and growing into a self-managed scrum team of 3–4 engineers over the following one to two quarters, with the client's lead moving toward a product-owner / vision role.
 

What you'll do

• Act as technical lead for an embedded engineering team, starting hands-on and growing it from ~2 to 3–4 engineers toward a self-managed scrum team
• Own technical design and architecture decisions across CI/CD, observability, and platform hardening
• Lead code reviews and raise the quality bar — particularly important given AI-assisted development is generating 15–20 merge requests per week
• Introduce and enforce a pyramid-based test-automation / QA framework (unit → integration → E2E) that makes high merge-request throughput safe and sustainable
• Define and drive non-functional requirements — performance, reliability, scalability — across all services
• Run and support sprint ceremonies, coordinate cross-team dependencies, and act as the delivery anchor so the client's lead can focus on vision, acceptance, and dependency management
• Provide CI/CD and GitLab knowledge transfer to adjacent teams that have skill gaps in pipeline work
• Stay hands-on — write Python, build pipelines, and contribute to the test framework directly (this is a working technical lead, not a pure people-manager)
  
   

Must-have skills

• Senior-level Python — the platform is ~98% Python
• Proven technical leadership of small, distributed teams: design ownership, code review, mentoring, and sprint ceremony facilitation
• Strong CI/CD experience — GitLab CI required; GitHub Actions a strong plus (a migration to GitHub Enterprise is in progress)
• Hands-on Azure experience (App Services, Functions, Key Vault, Storage)
• Test-automation strategy and QA framework design (pyramid model)
• Docker / containers and working knowledge of Infrastructure-as-Code principles (Terraform or Bicep)
• Azure observability with Application Insights
• Strong English and stakeholder communication — comfortable operating across US, European, and Indian time zones

This is a new initiative within a product company, and you'll be the only Node.js developer on the team. You'll take full ownership of the product's backend—from making architectural decisions to delivering features and supporting production.

Product

A B2B SaaS platform used by large media groups to manage and run digital advertising campaigns across their websites. The platform handles real-time ad serving, processes large volumes of impression and engagement events, provides heatmaps, click tracking, engagement analytics, and supports both desktop and mobile environments.

Team

The development team consists of 11 people, including the CTO, Product Director, Project Manager, QA Engineers, and Software Developers.

What You'll Do

• Design and own the backend architecture
• Build and maintain backend services using Node.js and TypeScript
• Design scalable data models and APIs
• Integrate services with AWS infrastructure (EC2, S3, Lambda)
• Debug, optimize, and maintain production services

What We're Looking For

• 4+ years of backend development experience; a true Senior Engineer who is confident making architectural decisions independently
• Strong expertise in Node.js and JavaScript/TypeScript
• Deep understanding of asynchronous programming and REST APIs
• Experience designing backend architectures and scalable services
• Experience with AWS (EC2, S3, Lambda)
• Experience with Docker and containerization
• English level B2+ (the technical interview is conducted in English)

🔹Who we are!
At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?

🔹About the project
Our client is a leading media company in Western Europe, delivering high-quality content across various platforms, including newspapers, magazines, radio, TV, websites, apps, and podcasts. Their brands reach millions of people daily, shaping the media landscape with independent and trusted journalism.
We are collaborating with them to develop a cutting-edge digital advertising solution that optimizes media campaigns and enhances user engagement. The product is already in production, and we are continuously evolving its features to meet the dynamic needs of the market.

🔹Responsibilities
The job in short: join the mature and capable Identity team to work on everything related to login, authentication, and authorization for millions of end-users across numerous brands. As a member of this team, you’ll be responsible for software craftsmanship in the broad sense of the term. You’ll help define and refine solutions to problems in close collaboration with business stakeholders, develop software, and safeguard the technical foundation of our platforms (including automated tests, deployment pipelines, cloud infrastructure, monitoring, and production support). This role comes with full end-to-end ownership — from architecture decisions and implementation to release, production monitoring, operational support, and continuous improvement

🔹Requirements

- Strong backend developer with solid experience in Java and Spring framework ecosystem
- Knowledge of frameworks such as Angular or React is not required, but strong JavaScript fundamentals are essential
- Hands-on experience with AWS, especially with services such as Lambda
- Practical experience building cost-efficient solutions in AWS
- Well-versed in modern web technologies such as HTTP, REST, JSON, authentication flows, and distributed system integrations
- Experience working with both relational databases and non-sql (MongoDB)
- Strong communication skills

🔹Nice to have
- Experience with Playwright, Jest, or Vitest Interest in and/or experience with Identity-related topics such as OpenID Connect, OAuth, JWT, public key cryptography, and authentication platforms
- Experience with Thymeleaf Experience with other cloud providers in addition to AWS

🔹Interview Process
1. Recruitment Interview (30 minutes)
A short introduction to discuss your experience, expectations, and the role.
2. Technical Interview (90 minutes)
A technical discussion focused on your expertise, problem-solving skills, and engineering experience.
3. Take-Home Assignment
Showcase your technical skills by applying engineering best practices and clean code principles.
4. Final Interview (in English)
Present your assignment, explain your technical decisions, and discuss your approach with the team.

🔹9 reasons to join us:
1. Today we're working with the technology of tomorrow
2. We don't wait for a change. We are the change
3. We're experts in creating experts (Levi9 academy, Lead9 program for leaders)
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English courses, Professional trainings)
6. Here you can train your body and mind
7. We've gathered the best locations - comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska subway station) and Lviv (5 minutes from the Opera Theatre) with regular offline internal events
8. We have master's degree in work-life balance
9. We are actively supporting Ukraine with constant donations and volunteering

About Octocrew

Octocrew builds and runs managed AI coworker crews — small teams of specialist AI agents that work inside a company's existing tools and help human teams execute recurring operational and marketing workflows. We are expanding our contractor pool with practical engineers who can implement, integrate, tune, and support client AI agent workflows.

The role in one line

You take an approved requirements spec and turn it into a working agent system that fits the client's tools, data, permissions, and approval process. This is not a prompt-only role and not pure DevOps; it sits between backend engineering, automation, LLM application development, systems integration, and client implementation. You do not need to already know our full agent stack — we have templates and patterns, and we care more about whether you can become reliable fast.

What you will do

Translate a client workflow into a clear implementation plan: tools, data sources, permissions, approval points, edge cases, success criteria.

Build Python glue around AI workflows: API connectors, webhooks, small backend services, scripts, data syncs, and browser automation where APIs are limited.

Configure and tune LLM-powered workflows from our templates.

Integrate Slack, Telegram, Notion, GitHub, CRMs, ecommerce and marketing platforms, helpdesks, analytics, and internal knowledge bases.

Make implementations maintainable: logs, error handling, smoke tests, runbooks, handoff notes.

Support launched workflows: triage issues, debug integrations, fix regressions, and document changes.

What we expect

2+ years of backend, automation, integration, or applied software engineering experience.

Python-first engineering ability.

Solid API fundamentals: REST, webhooks, OAuth basics, retries, rate limits, request debugging, structured logs.

Some hands-on exposure to LLM tools or AI automation, or strong motivation to learn them quickly with guidance.

Comfort working with messy real-world systems: unclear requirements, imperfect docs, partial APIs, edge cases.

Basic DevOps literacy: Linux, Docker basics, environment variables, logs.

Pragmatic scoping and a self-directed work style.

Ukrainian for team communication; working English for documentation and APIs.

Nice to have

Integrations experience (Slack, Telegram, Notion, GitHub, Google Workspace, CRM, helpdesk, ecommerce, analytics); OpenAI / Anthropic / Gemini, RAG, vector search, or agent orchestration; Playwright; client-facing experience; security and data-handling awareness.

Format

Contractor / project-based, remote. Start with a compact paid pilot task that mirrors real client work, then project delivery and/or ongoing support. Compensation hourly or project-based, agreed after technical fit and scope.

Our client is a mobile gaming company building consumer-facing products played by millions of users. Their backend powers real-time game mechanics, player data, in-app economies, and live operations at scale. They move fast, ship often, and rely heavily on AI tooling to stay lean and effective.
 

 We are looking for a seasoned Backend Engineer to join the core platform team. You will design, build, and maintain the services that keep their games running reliably at high load. This is a hands-on engineering role with real ownership, not ticket-pushing.
 

Responsibilities

• Design and develop scalable backend services using Java and Spring Framework
• Build and maintain data pipelines and event-driven systems with Kafka
• Own the reliability and performance of PostgreSQL and Redis-based infrastructure
• Contribute to microservices architecture decisions and cloud (AWS) operations
• Work closely with game, mobile, and DevOps engineers to ship features end-to-end
• Actively use AI coding agents in daily development to increase throughput and quality
   

Requirements

• 5+ years of backend engineering experience
• Strong Java skills with hands-on Spring Framework (Core, Boot, Web, Security)
• PostgreSQL and Redis in production environments
• Kafka for async/event-driven communication
• Docker and containerized deployments
• Microservices design patterns and AWS (any combination of EC2, ECS, RDS, S3, SQS, etc.)
• Daily hands-on use of AI tools and coding agents — this is a hard requirement, not a preference
• English: Upper-Intermediate or higher (B2+)
   

Conditions

• Full-time or part-time (3 days/week)
• Remote with occasional travel to team offsites

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 Strong Middle Java Developer 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.
• Participate in code reviews and contribute to team knowledge sharing.
• Troubleshoot, debug, and resolve software defects and issues.
• Assist in designing and implementing new features.
• Develop unit and integration tests to ensure software quality.
• Document code, processes, and technical specifications.
• Stay up-to-date with Java best practices and emerging technologies.
• Support deployment and maintenance of applications in development and production environments.
• Participate in Agile ceremonies and contribute to sprint planning and retrospectives.

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.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• 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.
• Corporate English lessons.
• 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.

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! 
 

Your Career

As a Backend Engineer within our On-Prem platform team, you play a pivotal role in building a new on-premise platform for running Cortex products - Cortex XSOAR, Cortex XDR, Cortex XSIAM and Cortex Cloud.

You will design and develop an infrastructure that supports billions of events per second, storing, processing and making them accessible and visible to the user while collaborating with the industry’s leading cyber products.

Building a highly available, reliable and secured on-premise platform that performs just as good as the cloud product is a significant challenge. Your crucial role goes beyond development, involving cross-organizational impact collaboration to ensure success.

The great majority of the Cortex engineering group is located in the Santa Clara and Tel Aviv offices allowing us to operate at a high pace.

In this role, you will need to be creative, innovative and demonstrate deep knowledge in Kubernetes, conducting research to find new technologies, with a can-do approach, an internal drive for excellence and improvement, and thrive on bringing value to thousands of customers.

Your Impact

As a Backend Engineer on the team, you will:

• Work on a new product, implement major parts from design to implementation!
• SAAS to on-premise challenge! Building / Enhancing an on-prem platform that will work seamlessly like the SAAS product.
  • Design, build, and optimize data models and queries for speed and scale, using data storage technologies like MySQL and BigQuery
• Who knew? You do! Research new technologies and see how they can be adapted to the product
• Utilize your big-picture perspective to spot existing and impending problems, then work with senior engineers and leadership across the department to analyze and solve them

• Proactively spot, articulate, and mitigate risks in ongoing and planned projects to ensure smooth execution and high output - This may include providing ad hoc mentorship, communicating with project stakeholders, or rolling up your sleeves and stepping in to help move things along

  Kubernetes architecture! Design and implement HA, performance tuning, and disaster recovery strategies for Kubernetes clusters.

  • Design, architect, develop, and maintain Kubernetes architecture product Implement custom Kubernetes operators to automate application lifecycle management and complex deployment scenarios.
  • Automate the deployment and configuration of Kubernetes clusters using infrastructure-as-code (IaC) tools (e.g., Terraform, Ansible) solutions for on-prem Kubernetes clusters and applications.
  • Like CEPH, implements and manages cloud-native persistent storage solutions with Kubernetes clusters.
  • Manage and optimize storage solutions within the Kubernetes environment, including persistent volumes and storage classes.
• Customer First! Provide technical guidance and support to customers deploying our applications in their chosen environments.

Qualifications

Your Experience

• BS/MS in Computer Science or Computer Engineering or related technical degree
• 5+ years of hands-on experience in software backend engineering, with a focus on cloud-native application development, at large organizations or innovative startups
• Strong programming skills in one of Python or Go, with experience in building distributed systems
• Excellent troubleshooting abilities. Isolate issues found during testing and verify bug fixes once they are resolved
• Experience with backend development (Rest APIs, Databases, Serverless computing) of distributed cloud applications
• Strong understanding and applied knowledge of Kubernetes architecture deployments (such as Ansible, Kubespray, Helm, CDK8s, k8s managed and unmanaged) and a variety of Kubernetes distributions such as Rancher Kubernetes Engine (RKE2)
• Experience with database technologies like ElasticSearch, MySQL, BigQuery, cloud technologies like S3, Pubsub, RabbitMQ and caching technologies like Redis.
• Experience with cloud-native storage solutions (e.g. Ceph, Rook) with a Proven ability to develop and manage custom Kubernetes controllers or operators.
• Good understanding of public cloud design considerations and limitations in areas of microservice architectures, security, global network infrastructure, distributed systems, and load balancing with proficiency in at least one cloud provider (AWS, GCP , Azure)
• Strong understanding of principles of DevSecOps, DevOps and Continuous Delivery
• Experience with the agile process and working with software development teams involved with making data-driven decisions for building out full stack products, deployed on the cloud at scale
• Enjoys working with many different teams in a fast-paced environment with strong collaboration and communication skills

PLEASE NOTE that we are searching for candidates who are located in Lviv and are able to visit office in Lviv.

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 Trainee Java Developer to join our team in Lviv!

What You'll get to do:

• Take part in collecting odds data from bookmakers, both from dedicated XML/JSON feeds – using Java – and from websites – site scraping;
• Offer technical support for existing clients.
• Take part in the daily maintenance and monitoring of developed odds collectors and other internal tools.
• In addition, it is of very high importance to maintain the highest possible quality of data collected from existing sources.

What You need to know:

• Java 21: Virtual Threads, Sequenced Collections, Sealed Classes, 
  HttpClient​
• Multithreading: Threads, ExecutorService, ReentrantLock, basic synchronized, CompletableFuture​
• Streams & Optionals: Fluent with Stream API, Optional, aware of OM OptionalUtils​
• Collections: Clear understanding where and how to use List, Set, Map, Queue, Dequee, Collections.synchronizedMap, ConcurrentHashMap, Immutable collections​
• Regex: Basic usage with Pattern and Matcher for text parsing and validation​
• HTTP Basics: Knowledge of HTTP methods – GET, POST, PUT, DELETE, and their typical use cases
• Version Controll - SVN, Git
  
  Nice to Have:
• Java projects from school, personal work, or internships.
• Exposure to Jsoup or similar parsing libraries. Interest in sports or betting.
• Experience building web scrapers.​
• English: A2+

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.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• 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.
• Corporate English lessons.
• 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.

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! 
 

🚀 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:

We are building an AI-first platform that fuses multiple maritime data sources into a unified operational picture. The system builds a digital twin of global maritime activity, applies behavioral analytics and predictive AI models to surface smuggling, illegal fishing, container risk, and other compliance or security threats, and presents mission-grade intelligence to both commercial and government stakeholders. 

Operating at global scale, the platform processes millions of events and terabytes of geospatial data daily. 

About the Role:

You will join an autonomous team formed to pioneer agentic, AI-first workflows within a production-grade maritime intelligence platform.
You will own the design, delivery and operation of backend services that power generative AI agents at scale, influence core architectural decisions, and drive AI-SDLC standards across the organization.

📍 Key Responsibilities:

• Architect and build scalable microservices in Python to support agentic workflows and data pipelines within a distributed system, contributing to frontend development when needed (React).
• Lead integration of generative AI capabilities – LLM APIs, RAG pipelines and autonomous agents – into production environments.
• Implement operational practices and observability for AI components, including monitors for model drift, hallucination detection and performance metrics.
• Establish and enforce AI-SDLC practices: code reviews, automated testing, CI/CD pipelines and continuous trace-based quality evaluations.
• Design and maintain infrastructure as code using Terraform, Kubernetes (K8s) and related AWS services.
• Drive improvements in engineering speed and quality through tooling, automation and architectural enhancements.
• Mentor engineers on emerging AI frameworks, developer tools and best practices for high-scale agentic development.
• Collaborate with product and research teams to translate user requirements into reliable, secure backend services.

📍 Required Competence and Skills:

• 7+ years of professional backend engineering experience, including at least 2 years building agentic or autonomous AI workflows in production.
• Deep experience with Python.
• Hands-on experience in agentic frameworks such as LangChain, LangGraph, DeepAgents, CrewAI, OpenClaw, Hermes (or equivalent).
• Proven track record designing scalable, event-driven architectures on AWS, including messaging (SQS/SNS) and SQL/NoSQL databases.
• Strong understanding of GraphQL or REST API design and DevOps practices, including CI/CD, Kubernetes, and Terraform.
• Skilled in implementing production-grade security, monitoring and incident response for mission-critical systems.

Nice to Have:

• Experience with React.js and full-stack development.
• Familiarity with vector databases and similarity search for AI applications.

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.

About client

Our client Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes. With global headquarters in Dallas, Texas, the Firm provides an integrated suite of federal, state, local, and international tax services on a multijurisdictional basis, including tax recovery, consulting, advocacy, compliance, and technology services. Ryan is a seven-time recipient of the International Service Excellence Award from the Customer Service Institute of America (CSIA) for its commitment to world-class client service.
 

About the project:
A VAT recovery system for Ryan clients in European countries that would help to automate the regular work of VAT specialists at Ryan. The client team is located in Braga, Portugal.

Responsibilities:
• Design, build, and maintain efficient, reusable, and reliable code
• Contribute to the best possible performance, quality, and responsiveness of applications
• Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues
• Help maintain code quality, organization, and automation
 

Requirements:
• Minimum 4 years of commercial experience as a PHP/Laravel developer
• Experience working in the finance domain (or at least education in finance) would be an advantage
• At least upper-intermediate English level
• Solid knowledge and experience with PHP and the Laravel framework
• Confident knowledge of Object-Oriented Design principles
• Experience with LAMP stack (Linux, Apache, MySQL, PHP)
• Experience working with YAML and XML documents and files
• Experience working with 3rd party APIs and web services
• Skilled in using Git or another version control system
• Good theoretical understanding of software development
• Experience working in an Agile (preferably SCRUM) environment
• Strong communication skills
• Team player, responsible, and hardworking
 

Will be a plus
• Good understanding of JavaScript (ES6, TypeScript), HTML and CSS

About Cowchain
Cowchain is a Web3 development company behind PixelVerse, StepApp, RetroBridge, Hybrid, Tenet, and 150+ other blockchain products with $180M+ combined market cap. We're a team mostly based in Ukraine, with some across Europe, fully remote. We build across DeFi, GameFi, cross-chain bridges, AI agents, NFT platforms, and Telegram mini-apps.

We look for people who take ownership, think deeply, and can work independently, ask the right questions, and move through uncertainty without waiting for step-by-step instructions. No unnecessary hierarchy—you talk directly to the founders when it matters. We value what you bring over how long you've been around.

About the role
We're looking for a Backend Developer with strong Node.js experience to build and ship blockchain products, mainly in the Solana ecosystem, with occasional EVM-related tasks. You'll work on real client products: payment flows, swaps, cross-chain bridges, token mechanics, and transaction logic.

We care less about how many years you've logged and more about how you think: how you break down a problem, gather requirements before building, weigh trade-offs, and reason about architecture.

What you'll do

• Build new features and services from scratch, and support existing ones
• Build, sign, and send transfer and swap transactions
• Work with Solana mechanics: token accounts, priority fees, multi-signature transactions, transaction building
• Integrate with Solana/DeFi protocols such as Pump.fun, Jupiter, Raydium, Meteora, and similar platforms
• Take part in architecture discussions—your input on design decisions matters
• Debug, fix, and harden production solutions

What we're looking for

• 3+ years of commercial backend experience
• Strong Node.js experience
• Solid understanding of blockchain mechanics: gas, priority fees, token account creation, multi-signatures
• Hands-on experience with Solana tooling: Solscan, Solana Explorer, transaction analysis and transaction building
• Experience building, signing, and sending transfer and swap transactions
• Comfortable with Bignumber.js / bn.js for safe big-number math
• Experience with Solana/DeFi protocols such as Pump.fun, Jupiter, Raydium, Meteora, or similar
• Familiarity with Jira, Git, and GitFlow

Nice to have

• Experience with EVM-based chains: Ethereum, Polygon, BSC, Arbitrum, Base, Avalanche, etc.
• Experience with cross-chain bridges: lock/mint and liquidity models
• Experience with token launch mechanics or meme-coin creation
• Outsource/agency background

What we offer

• Fully remote work from anywhere
• Competitive salary with activity bonuses
• Paid vacation and sick leave
• AI tool subscriptions: ChatGPT, Claude, Gemini
• Internal knowledge sharing and Personal Development Plans
• Individual onboarding tailored to your role and project
• Direct access to founders and C-level — decisions happen fast, no unnecessary bureaucracy

About the Role:

We are seeking a motivated Junior Verification Engineer to join our VLSI design and verification team.

This is an excellent opportunity for new graduates with strong academic training in digital design, verification methodologies, and SystemVerilog/UVM.

Responsibilities:

Develop and execute verification testbenches using Verilog/SystemVerilog and UVM

Implement functional and constrained-random tests for block-level and SoC-level designs

Create coverage models (functional, code, assertion-based) and drive coverage closure

Debug simulation failures, interface mismatches, and RTL issues

Write and maintain scoreboards, monitors, agents, drivers, and checkers in UVM

Review design specifications, extract test requirements, and build verification plans

Run regressions, triage failures, and document results

Collaborate closely with RTL designers, DFT, backend, and system architects

Required Qualifications:

B.Sc. or M.Sc. in Electrical/Computer Engineering or related field

Strong academic background in digital logic, computer architecture, and VLSI design

Hands-on experience with Verilog and SystemVerilog (labs, projects, internship)

Basic understanding of UVM methodology

Familiarity with simulation tools (VCS, QuestaSim, Xcelium or similar)

Ability to read and understand RTL code

Good analytical and debugging skills

Strong motivation to grow in advanced functional verification

Nice-to-Have Skills:

Coursework or project experience with UVM testbench development

Familiarity with assertion-based verification (SVA)

Basic scripting (Python, Perl, Shell, TCL)

Experience with coverage-driven verification

Exposure to SoC-level interfaces (AXI, PCIe, DDR, Ethernet, SPI, I2C)

What We Offer:

Full training in modern verification methodologies (UVM, SVA, CRV)

Work with cutting-edge IPs and SoC architectures

Mentorship from senior verification and architecture teams

Clear growth path toward UVM specialist, verification lead, or architect

We are looking for highly motivated junior engineers to join our Design-for-Test (DFT) team.

This is an excellent opportunity for graduates who want to build expertise in Scan, Memory BIST, and JTAG within advanced VLSI development.

Responsibilities:

Learn and support implementation of scan insertion and scan chain architecture

Assist in ATPG pattern generation and test coverage analysis

Participate in Memory BIST (MBIST) integration and verification

Work with JTAG / IEEE 1149.1 boundary scan concepts and flows

Help debug test-related issues at RTL and gate level

Collaborate with senior DFT engineers on SoC-level test strategy

Required Background:

Academic knowledge in digital logic, VLSI design, and computer architecture

Basic familiarity with DFT concepts: scan, ATPG, BIST, boundary scan

Understanding of Verilog or VHDL

Scripting basics (Python, TCL, Shell)

Good analytical and problem-solving skills

Strong motivation to learn industry-standard DFT tools and flows

What We Offer:

Full training in Scan, MBIST, JTAG, ATPG, and DFT methodologies

Mentorship by experienced DFT engineers

Exposure to advanced SoC development flows and signoff

Growth path toward senior DFT, test architecture, or silicon bring-up roles