Jobs Backend

Build the most meaningful apps on the latest web technologies!

ABOUT ELEMENTICA

Welcome to Elementica! We are excited to see you on our profile. Elementica is a leading global software development company – expert in delivering web development, mobile application development and IT consulting services of any complexity to clients worldwide.

www.elementica.io

JOB POSITION

We are looking for a talented Python Developer to join our Development Team on a full time long term basis. You will be at the core of our talented Web Apps teams and focus on building the most advanced and meaningful apps and workflows on the latest web technologies.

RESPONSIBILITIES AND DUTIES

As a Python backend engineer, you will play a key role in further ecosystem technical implementation and enhancement. We expect and encourage you to take initiative and be result-oriented and proactive in communication, architecture design, technical implementation, testing and reporting.

We are Product oriented developers with a growth mindset. We are curious problem solvers and we like to collaborate, communicate, share knowledge and technical ideas and grow together.

What you’ll do:

• Comunicate with the product owner and internal management team to perfectly understand domain area, specific tasks and their end goals proir to technical implementation
• Design and document architecture of the module / feature prior to its actual coding
• Write clean, well documented Python code, covered with the end-to-end and unit tests, following clearly defined internal style guides and best practices
• Do thorrough testing of the written code and implemented functionality in order to make sure it works according to the requirements and doesn`t produce new bugs
• Participate in regular stand ups with the end client.

What we look for in you:

• Results-orientation, collaborative, pragmatic and agile mindset
• Strong knowledge in working with FastAPI
• Independence and responsibility
• Working proficiency in English (written and verbal)
• Continuous learning

We are looking for these skills/experience:

• Strong knowledge of FastAPI Python framework
• Understanding of new Python features, 3.12+ versions are used on our projects
• Strong knowledge of Alembic & SQLAlchemy ORM v2.+
• Experience working with OpenAI and similar APIs (Prompt engineering, integrations)
• Experience or at leats clear understanding in writting both end-to-end and unit tests using PyTest
• Understanding of common development principles and best practices (SOLID, DRY, YAGNI), design patterns and Modular Monolithic Architecture
• Experience working with Docker and Docker Compose
• Experience in CI/CD processes is a plus
• Experience with web performance optimizations

What we offer:

* The opportunity to drive the development of cutting-edge software products

* The chance to work on interesting technical challenges such as advanced algorithms, wide integrations or scalable content management

* A positive, highly skilled, young team with a focus on quality

* Hybrid working possibility / Home-office friendly / Flexible working hours

* Pick your own gear: Linux or IOS - whatever works best for you

* A lot of room for your own ideas. We always highly encourage you to work on them together with the team.

* Outstanding compensation based on experience and 20 days vacation

* Sponsored training opportunities with Udemy

Our job offer Python Developer sounds interesting? Then we are looking forward to receiving your application!

We are looking for Junior / Middle Python Developer to join our company GoBoutique in Lviv and work on interesting projects for our USA based clients.

Required knowledge and skills: OOP, Python, Fast API, REST API, Git, PostgreSQL, IntelliJ IDEA, Linux, Data pipeline building / data ETL, AWS, HTML, CSS

We offer:
— Competitive salary
— Paid vacations

If you are interested, please send us your CV. Please include your salary expectations.

If you have any questions, let's talk!

Regards,
Olya

Developing a software platform for the automated analysis and visualization of cyberattacks in safety-critical systems. The goal is to efficiently support companies in regulated industries – from automotive and energy to the security and defence sector – in implementing complex cybersecurity requirements, the deal is to distributed a micro-service based application for real-time system design and threat modelling.
Based on best practices of Domain Driven Design.

Technology:
- C# / .Net Core;
- Rest Api / Json;
- NuGet / Packages;
- Ado.Net / EntityFramework / Dapper; 
- Sql (relational design understanding);
- Windows / Linux;
- Message broking;
 

Would be a plus:
- Html / Css / JS;
- Sass / Less;
- Anguler | React | VueJs (some of);
 

Architecture:

- Multi- (micro-/macro-) services;
- System complexity management;
- Testing approaches understanding;
- CI/CD concepts understanding; 
- Clean coding / Refactoring;
- Ability to keep architecture consistency;
- DDD, SOLID, KISS

General .net:

- Keep development process clean and transparent for project management and rest of the team;
- Integrate FE development process with existing project parts;
- Be aware in full-stack scope of product development;

General BA:

- Solid understanding of software architecture concepts (layers, microservices, APIs, data models, integration patterns);
- Experience translating business requirements into technical constraints and design principle;
- Strong analytical, communication, and documentation skills;

Tools:
- Git;
- Postman / Fiddler (or any other utility); 
- Docker;
Other:
- English - upper intermediate (C1 equivalence);

About The Project
We are building a large-scale automated advertising platform that powers the buying and selling of digital ads globally. The solution is used by leading publishers and applications to connect with brands and deliver ads to a massive audience worldwide.

The platform operates as a high-load, distributed system that supports multiple ad formats (including display, video, and digital out-of-home) across various devices. It focuses on real-time transactions, scalability, and efficient data processing to ensure seamless ad delivery and optimization.

Job Description

- Experience building and operating large-scale, high-throughput, enterprise apps
- Experience in real-time systems or data engineering (ETL / Streaming) as opposed to simple API development.
- 6+ years coding experience in server-side Java
- Excellent Java Core knowledge (Java 8 or higher, Collections, Exceptions, Concurrency)
- Experience with RDBMS (MySQL, PostgreSQL), native SQL, ORMs (Hibernate)
- Experience with automated testing frameworks (TDD, Mocking, Unit/Functional/Integration)
- Hands-on in AWS cloud services 
- Understanding of VCS (Git)
- Experience working in a Linux environment.
- Fluent English verbal and written communication skills
- Shifted working hours 1pm till 9pm EEST timezone

- Shifted working hours 1pm till 9pm EEST time zone

Nice to have experience with:
- Familiar with Scala, Spark
- Commercial experience with Spring Framework (Boot, Core, MVC, Data)
- Experience with Redis, Aerospike, RabbitMQ, Kafka, Camel
 

Job Responsibilities

- Write production-ready code and unit tests that meet both system and business requirements.
- Respond to feature requests, bug reports, performance issues, and ad-hoc questions.
- Work collaboratively with multiple teams to deliver quality software.
- Comfortable in multi-tasking and fast-pacing dev process.
- Support operation of services in production.

We're looking for an experienced Team Lead Developer with strong technical expertise in Node.js and a solid background in leadership, to join our growing fintech development team in Lisbon, Portugal. You will lead a cross-functional team working on a payment integration platform, contributing directly to architecture, delivery, and team growth.

✅ Responsibilities:
✔️ Being transparent with the team about challenges, failures, and successes.
✔️ Hiring and training technical personnel.
✔️ Determining project requirements and developing work schedules for the team.
✔️ Delegating tasks and achieving daily, weekly, and monthly goals.
✔️ Liaising with team members and management to ensure projects are completed to standard.
✔️ Motivating staff and creating a space where they can ask questions and voice their concerns.
✔️ Delegating work and assignments to team members.
✔️ Collaborating with their team to identify and fix technical problems.
✔️ Lead the development of our in-house fintech platform with a focus on performance, scalability, and security.
✔️ Build and manage complex payment API integrations with banks, PSPs, and third-party services.
✔️ Contribute to full-stack development, ensuring consistency and stability across the product.
✔️ Actively participate in developing new features from concept to production.
✔️ Collaborate with product managers, designers, and stakeholders in agile workflows to ensure technical feasibility and business alignment.
✔️ Support the evolution of the architecture towards modern patterns (microservices, messaging systems, and scalable infrastructure).

✅ Requirements:
✔️ At least 8+ years of professional experience in the IT field.
✔️ 3+ years of experience in leadership positions.
✔️ 3+ years of commercial experience with Node.js and React.
✔️ 5+ years of commercial experience in web development.
✔️ Knowledge of JavaScript and the ECMAScript 6 standards.
✔️ Commercial experience in implementing REST and WebSockets.
✔️ Experience with Git version control system.
✔️ Experience with commercial databases, MySQL.
✔️ Experience with RabbitMQ.
✔️ Experience with Redis.
✔️ B2 level of English.
✔️ Excellent technical, diagnostic, and troubleshooting skills.
✔️ Strong leadership and organizational abilities.

✅ We offer excellent benefits, including but not limited to:
🧑🏻‍💻 Learning and development opportunities and interesting, challenging tasks.  
✈️ Relocation package (tickets, staying in a hotel for 2 weeks). 
🏋️‍♂️ Company fitness corner in the office for employees. 
📚 Opportunity to develop language skills and partial compensation for the cost of language classes. 
🎁 Birthday celebration present. 
🏝 Time for proper rest and 24 working days of Annual Vacation. 
🍲 Breakfasts and lunches in the office (partially paid by the company).

What is important:

• The candidate has the right to official employment in a Cypriot company as a Ukrainian with temporary protection status in Cyprus

• Citizen of Ukraine

   

You will join the Data365 team, a product that helps extract data from online platforms and social media. Data365 solutions are used by international companies for social listening, media monitoring, brand reputation management, and digital content analytics.

We are looking for a Python developer with at least 4 years of commercial development experience, knowledge of data scraping tools in Python, and experience scraping data from web pages and APIs to help us complete our ongoing tasks of data scraping, parser support, and development of data collection functionality. We keep up with the latest technological trends in the project, and soon we plan to upgrade our stack to modern tools — FastAPI, Elasticsearch and RabbitMQ. This will open up new opportunities for developers and allow us to be even more efficient in collecting and analyzing data from social networks.


 

Hard Skills

1. At least 4 years of commercial experience in Python development.

Web Scraping:

• Proficiency with data scraping tools and techniques.
• Experience writing parsers to scrape data from web pages and private APIs.
• Knowledge of XPath and regex for data extraction.

2. Browser Automation:

• Hands-on experience with headless and stealth browser frameworks (Playwright, Puppeteer, Selenium, or similar).
• Understanding of anti-detection techniques: fingerprint management, proxy rotation, and user-agent spoofing.
• Proficiency with XPath and CSS selectors for DOM interaction.

3. Async Python:

• Deep practical experience with asyncio and concurrent Python — not just surface-level async/await.
• Track record of building and maintaining complex, long-running async systems in production.
• Comfortable debugging concurrency issues: race conditions, resource leaks, task lifecycle problems.

4. Databases:

• Strong SQL skills, including writing complex queries without using an ORM.
• Experience with relational databases such as PostgreSQL or MySQL.

5. Infrastructure:

• Strong Linux systems knowledge: display servers (X11/Xvfb, Wayland), process management, networking, and troubleshooting.
• Solid Docker experience: writing Dockerfiles, multi-stage builds, composing services, debugging containerized environments including GUI/display forwarding.
• Proficiency with Git for collaboration and version management.

6. Web frameworks Experience with one of the popular frameworks like Django, Flask, FastAPI, Litestar

7. Writing tests/ Practical experience (e.g., Pytest) and using linters for clean code.

Soft Skills

• Ability to take ownership of tasks and meet deadlines with minimal supervision.
• Strong time management skills, especially when handling multiple priorities.
• A systematic approach to identifying and resolving technical challenges.
• Clear and professional communication for effective teamwork and collaboration.
• Willingness to work collaboratively and support peers when needed.

Nice-to-Have

• Experience scraping data from platforms such as Twitter, TikTok, or Facebook.
• Understanding or experience working with microservice architecture.
• A solid foundation in solving data-intensive challenges, including knowledge of algorithms and data structures.
• Experience deploying and managing applications in Kubernetes.
• Familiarity with Prometheus and Grafana for monitoring and visualization.
  
   

Job benefits:

• Pure in-house product, highly loaded system. In a product, response time is important, the load is increasing and will continue to increase. And it’s not outsourcing.
• If you like a high degree of independence and autonomy, this is super for you. There are few calls, this work is calm: no blown minds, no constant tracking or micromanagement.
• You are doing a really useful service that people really need. You could see the result every day and you can be proud of it.
• Non-standard technical tasks. Opportunity to meet and use AI
• The opportunity to learn how to prepare products for deployment into a modern cloud infrastructure. In terms of infrastructure, Kubernetes, Docker and Helm are used.
• This is exactly the work for the result. You have time to perfectly polish to the shine — the result matters and quality is more important than timing. For people who like to love their product and dive deep.

Details:

• Flexible working hours: 8-hour workday within the time window of 9:00 AM—9:00 PM (GMT+2), (5/2 schedule)
• 20 paid working days (4 weeks) of annual leave
• Full package of statutory benefits in accordance with Cyprus labor law, including health insurance, paid sick leave, maternity leave, and pension contributions
• Long-term employment contract
• Annual salary review.

We are an international IT company with our primary operational entity based in Cyprus, uniting and supporting a group of product-based IT businesses. The company specializes in building and developing B2B SaaS solutions in the areas of APIs and integrations, data processing, analytics, infrastructure services, mapping/geodata, and related data-driven fields. We are actively growing and value an engineering mindset, proactivity, and the desire to drive product and process development.

It will be great to hire an adult conscious specialist to our team

Resumes will be reviewed with a cover letter.

Please include your location, current citizenship, scraping experience, and salary level. 

Thank you!

ASAP Hiring
Long notice periods won't be considered.

We're building a new AWS-based logistics platform that centralizes operational workflows and business data.

Our immediate focus is integrating existing operational systems (Monday.com, Trucker Tools) into a unified backend environment, synchronizing data with AWS-hosted databases, and building scalable services for logistics operations.
 

What You'll Do

• Build and maintain backend services using .NET / ASP.NET Core
• Integrate Monday.com and Trucker Tools APIs
• Design and optimize PostgreSQL / SQL database structures
• Implement data synchronization and webhook-based integrations
• Develop backend logic for orders, loads, routes, delivery tracking, and operational reporting
• Collaborate closely with frontend and AWS infrastructure teams
   

What We Expect

• Strong commercial experience with C# and .NET
• Solid REST API development experience
• Strong SQL and relational database design skills
• Experience integrating third-party APIs
• Experience with webhooks and event-driven systems
• Hands-on experience with AWS environments
• Strong understanding of scalable backend architecture
   

Nice to Have

• Experience in logistics, transportation, fulfillment, or supply chain products
   

Tech Stack

.NET Core • C# • PostgreSQL • REST APIs • AWS • Monday.com API • Trucker Tools API • Webhooks • GitHub • CI/CD

We are looking for an experienced Senior Java Full Stack Engineer to join our development team.
 

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services, and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.
 

Responsibilities:

• Hands-on full-stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, and DevOps
• Working in XP with Remote pairing
   

Requirements:

• BS degree in Computer Science or equivalent combination of education and experience
• 5-6+ years of full-stack development
• 5-6+ years of experience in the following technologies: Java, Spring
• Experience with Functional Programming and Java Streams
• 2+ years of experience in front-end development with React
• Experience with developing a reactive UI (Reactive JS)
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins
• Experience in development in Kotlin – an advantage
• Experience in designing, developing, and deploying cloud/hybrid-based solutions
• Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry)
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker
• Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment
• Versatility and the capability to switch easily between different tasks and technologies
• Experience in assessing a broad range of information solutions and products
• Strong critical thinker with problem-solving aptitude
• Good English - verbal and written

Cropwise Operations is a global leader in digital agritech solutions, operating in over 50 countries and helping optimize business processes and improve the efficiency of agronomic decision-making.  

We are looking for a skilled Ruby on Rails Developer to join our team.

What we expect from a candidate:

- Preferably 3+ years of Ruby on Rails development experience.

- Strong knowledge of Rails.

- Experience with testing frameworks like RSpec and Capybara.

- Testing with RSpec/Capybara.

- Basic knowledge of ES6 + React.js.

- Experience with JavaScript.

- Standard Rails application deployment stack (Git, CI, Capistrano, *nix).

- Knowledge of HTML/CSS.

What exactly will you need to work with:

- Backend on Ruby on Rails 7.0 (Ruby 3.2).

- PostgreSQL + PostGIS database (handling large geospatial datasets).

- Job processing with Resque + Redis.

- Testing on RSpec + Capybara + CI.

- Partially frontend on React.js (ES6, JSX).

What else can you work with?

- Algorithms for processing large amounts of geodata.

- Reception and processing of binary data (Ruby eventmachine).

- Working with RabbitMQ.

- AWS, Google Cloud, Kubernetes.

- Visualization and work with geodata on the frontend (Mapbox GL JS).

Hiring process:

- Intro call;

- Test Task;

- Final Interview;

- Offer.

The company offers:

- Opportunity to be a part of a best-in-class product that is used by thousands of companies around the world.

- Participation in complex technical tasks and challenges.

- Environment where you need to seek and implement unique engineering and technical solutions.

- Trainings and development programs.

- Flexible work formats: remote, office or hybrid.

- Health and life insurance for employees and your family members.

- 32 working days of paid annual leave and sick leave.

About Cropwise Operations

Cropwise Operations is a SaaS platform for farmers, leveraging cutting-edge technologies such as computer vision, big data, and AI to deliver actionable insights and improve agricultural outcomes.

For seekers, cooperation with Cropwise Operations is an opportunity to be part of a best-in-class product used by hundreds of companies around the world, and to deal with complex technical tasks in the field of neural networks and machine learning with the need to constantly improve their knowledge and skills, to find and implement unique engineering and technical solutions.

Are you a Java Backend Developer who enjoys building clean, reliable backend systems, working with integrations, and taking ownership of your tasks?

We are looking for a Java Backend Developer to join our team and work on a new CRM product as well as existing backend systems and integrations. You should be comfortable with Java, Spring Boot, REST APIs, SQL, and daily communication with the team in English.

What You'll Do

• Develop and maintain backend applications using Java and Spring Boot
• Build and support REST APIs and backend integrations
• Work with SQL databases using native queries and JPA/Hibernate
• Help improve existing backend services, refactor code where needed, and keep solutions maintainable
• Participate in technical discussions, clarify requirements, and suggest practical solutions
• Work with Jira, Git, code review, and Agile/Scrum processes
• Communicate clearly with the team in English on a daily basis

Your Skillset

Core

• Java
• Spring, Spring Boot
• SQL
• JPA / Hibernate
• REST APIs
• Git
• Understanding of OOP and SOLID principles
• Basic understanding of data structures and algorithms
• Understanding of SDLC and Agile/Scrum workflows
• English level B1 or higher

Soft Skills

• Responsible and ownership-oriented
• Able to work independently and ask relevant questions when needed
• Attentive to details
• Able to receive and use feedback
• Clear communicator
• Team-oriented attitude
• Practical problem-solving mindset
• Willingness to learn and improve

Would Be a Plus

• Docker
• Basic CI/CD knowledge
• Unit and integration testing
• Kafka or other messaging systems
• Cloud platform basics, such as AWS, Azure, or GCP
• Database modelling experience
• Understanding of frontend/backend API contracts
• Experience with third-party integrations

Applications submitted through other channels will not be reviewed. In addition, we do not appreciate individual emails or messages sent to personal or alternative email addresses.

Working hours: 14:00-22:00 CET

As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features in software products. You will play a key role in ensuring that our client's storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK.

You will enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You will collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks
• Guide and mentor other engineers through design and code reviews

Required Qualifications:

• Extensive experience developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs
• Knowledge of data storage best practices, including security, availability, and compliance

Preferred Qualifications:

• Familiarity with integrating orchestration tools into enterprise software environments
• Experience with performance optimization, cost management, and designing for high availability
• Excellent communication and collaboration skills
• Prior experience mentoring engineers and conducting design/code reviews
• Background in supporting analytics and business intelligence integrations

Are you a Java Backend Developer who enjoys building clean, reliable backend systems, working with integrations, and taking ownership of your tasks?

We are looking for a Java Backend Developer to join our team and work on a new CRM product as well as existing backend systems and integrations. You should be comfortable with Java, Spring Boot, REST APIs, SQL, and daily communication with the team in English.

What You'll Do

• Develop and maintain backend applications using Java and Spring Boot
• Build and support REST APIs and backend integrations
• Work with SQL databases using native queries and JPA/Hibernate
• Help improve existing backend services, refactor code where needed, and keep solutions maintainable
• Participate in technical discussions, clarify requirements, and suggest practical solutions
• Work with Jira, Git, code review, and Agile/Scrum processes
• Communicate clearly with the team in English on a daily basis

Your Skillset

Core

• Java
• Spring, Spring Boot
• SQL
• JPA / Hibernate
• REST APIs
• Git
• Understanding of OOP and SOLID principles
• Basic understanding of data structures and algorithms
• Understanding of SDLC and Agile/Scrum workflows
• English level B1 or higher

Soft Skills

• Responsible and ownership-oriented
• Able to work independently and ask relevant questions when needed
• Attentive to details
• Able to receive and use feedback
• Clear communicator
• Team-oriented attitude
• Practical problem-solving mindset
• Willingness to learn and improve

Would Be a Plus

• Docker
• Basic CI/CD knowledge
• Unit and integration testing
• Kafka or other messaging systems
• Cloud platform basics, such as AWS, Azure, or GCP
• Database modelling experience
• Understanding of frontend/backend API contracts
• Experience with third-party integrations

Applications submitted through other channels will not be reviewed. In addition, we do not appreciate individual emails or messages sent to personal or alternative email addresses.

What you’ll do

• Own and drive the backend direction of the company as one of the key technical leaders;
• Design and implement new game mechanics on top of our existing PGS, extend its capabilities, and contribute to core gameplay engine development;
• Architect scalable, secure, and high-performance backend services using Node.js and TypeScript;
• Work closely with Game Logic, Frontend, and DevOps teams to ensure seamless integrations, real-time performance, and platform-wide consistency;
• Define backend engineering standards and enforce best practices across code quality, architecture, and performance;
• Design and maintain backend infrastructure: schemas, caching, messaging flows, microservices, gateways;
• Participate in roadmap planning, technical decision-making, and architectural discussions as the platform evolves;
• Support a rapidly growing product and engineering environment — we are scaling fast, and you will play a major role in that growth.

What you bring

• 5+ years of backend development experience, including ownership of complex systems or features;
• Strong expertise with Node.js + TypeScript and modern frameworks (Fastify, Nest.js);
• Advanced knowledge of SQL and NoSQL databases: PostgreSQL, MongoDB, Redis;
• Solid experience with message brokers (RabbitMQ or Kafka) and queue-based, event-driven design patterns;
• Deep understanding of distributed systems, microservices, and real-time communication (WebSocket, Socket.io);
• Experience building high-performance APIs, async flows, caching strategies, and scalable architectures;
• Confident with CI/CD, Git, automated testing (Jest), and monitoring/observability tools (Grafana, Loki, Tempo).

Nice to have

• Knowledge of PHP/Laravel or experience with other backend ecosystems;
• Familiarity with AWS, Docker, Kubernetes, containerized deployments;
• Experience with RNG, platform integrations, or the iGaming ecosystem.

Benefits

• 21 vacation days + 5 extra day-offs annually;
• 12 paid sick days;
• Fully remote format — work from anywhere you feel productive;
• Flexible schedule: start your day anytime between 08:00–12:00 CET;
• Fixed budget for health insurance and gym/fitness;
• Provided all required work equipment;
• Zero bureaucracy and direct communication with founders and C-level;
• Minimal meetings, async-friendly workflow;
• Startup energy: fast motion, creativity, and tight-knit communication;
• Business trips and team meetups several times per year;
• Multiple salary payout options (flexible formats);
• …And many more perks unlocked after we hit break-even.

We are looking for a Middle-level developer to participate in migrating a system from a legacy stack to a modern framework.

About the project: The system is written in C with embedded SQL. The task is to migrate the core business logic to Python (Frappe, MariaDB).

Responsibilities: 

• Analyze legacy C code and extract business logic 

• Migrate business rules to Python 

• Work with data models and application logic 

• Ensure correct data processing 

• Write clear and maintainable code

Requirements: 

• Solid knowledge of Python (experience with Django / Flask / ORM) • Ability to read C code 

• Strong SQL skills 

• Ability to understand complex logic

Nice to have: 

• Experience with Frappe / ERPNext 

• Experience working with legacy systems 

• Experience in project migration