Jobs

The Opportunity

We are looking for a skilled and driven Backend Developer to join our team. As a Backend Developer, you will be responsible for building and maintaining secure, scalable, and high-performance server-side applications and APIs that power our core software products.

The ideal candidate will have hands-on experience with modern backend technologies, a strong understanding of system architecture and data management, and a passion for clean, efficient code. You will collaborate closely with frontend developers, DevOps engineers, and product managers to deliver high-quality, integrated solutions that support our expanding user base.

Office Hours and Location

• Full-time, Monday to Friday
• Location: Argyle, TX – Onsite

Key Responsibilities and Duties

• Design and develop RESTful APIs and microservices using Python, Node.js, migrating from .NET technologies, ensuring optimal performance, security, and scalability.
• Build and maintain integrations with third-party services, payment gateways, and external APIs, implementing proper error handling and monitoring.
• Develop and optimize database schemas, queries, and data models for both SQL and NoSQL databases, ensuring data integrity and performance.
• Implement containerized applications using Docker and deploy them using Kubernetes orchestration, following DevOps best practices for CI/CD pipelines.
• Collaborate with AI and machine learning teams to integrate AI Agentic software development tools and automated code generation systems into the development workflow.
• Write comprehensive technical documentation, including API specifications, system architecture diagrams, and deployment guides.
• Participate in code reviews, maintain coding standards, and mentor junior developers on best practices and emerging technologies.
• Monitor application performance, troubleshoot issues, and implement solutions to ensure high availability and reliability of backend services.
• Work with cross-functional teams to gather requirements, estimate development efforts, and deliver features within agreed timelines.
• Stay current with industry trends, evaluate new technologies, and contribute to technical decision-making processes.
• Implement security best practices, including authentication, authorization, data encryption, and vulnerability assessments.

Skills and Qualifications

• At least 3 years of professional backend development experience with strong proficiency in Python and Node.js.
• Experience with C#, VB.NET, or C++ for enterprise-level applications and system integrations/modernization.
• Hands-on experience with Kubernetes container orchestration, Docker containerization, and cloud deployment strategies.
• Proven track record of building and maintaining RESTful APIs and microservices architectures.
• Experience with AI Agentic software development tools such as Windsurf, GitHub Copilot, ChatGPT, or similar AI-powered development assistants.
• Strong knowledge of database technologies including PostgreSQL, MySQL, MongoDB, and Redis, MSSQL, with experience in query optimization.
• Proficiency with version control systems (Bitbucket, Git), CI/CD pipelines (Jenkins, GitLab CI), and automated testing frameworks.
• Experience with cloud platforms (AWS, Azure, GCP) and infrastructure as code tools (Terraform, CloudFormation).
• Strong problem-solving skills and ability to debug complex distributed systems and performance issues.
• Excellent written and verbal communication skills, with ability to explain technical concepts to non-technical stakeholders.
• Experience with agile development methodologies and collaborative development practices.
• Knowledge of security principles, NIST (SSDF/CSF), and secure coding practices.

As a Plus

• Experience/knowledge in the Aerospace domain/operations.
• Experience with message queuing systems (RabbitMQ, Apache Kafka) and event-driven architectures.
• Familiarity with monitoring and observability tools (Crashlytics, Prometheus, Grafana, ELK stack).
• Knowledge of serverless computing (AWS Lambda, Azure Functions) and edge computing technologies.
• Experience with performance testing, load testing, and system optimization techniques.
• Understanding of machine learning workflows and MLOps practices.
• A BS degree in Computer Science, Software Engineering, or related field is preferred.
• Experience with performance simulation of full interconnect solutions using both transaction-level and processor/software-driven models.
• Familiarity with containerization technologies like Docker and Kubernetes, and automation tools like Jenkins.
• A BS degree in Computer Science or a related field is preferred.

Preferred Qualifications

• Experience with enterprise integration patterns and API gateway technologies.
• Familiarity with real-time communication protocols (WebSockets, Server-Sent Events).
• Experience with data pipeline development and ETL processes.
• Understanding of distributed systems design patterns and microservices best practices.
• Expertise in modern SQL and NoSQL databases, including MySQL, PostgreSQL, Redis, and or MongoDB.
• Strong experience in full-stack development and system architecture in a fast-paced, innovation-driven environment.

Aircraft Performance Group (APG)

Aircraft Performance Group, LLC (APG) is a flight operations performance engineering firm, established in 1999, that specializes in Runway Analysis, Weight and Balance, and Flight Planning solutions for the airline and corporate flight operations industry. We maintain a current worldwide database of airport information and provide data based on FAR, EASA, and CASA requirements. APG is headquartered in Castle Rock, Colorado. Learn more at flyapg.com.

In Competera, we are building a place where optimal pricing decisions can be made easily. We believe that AI technologies will soon drive all challenging decisions and are capable of helping humans be better. We are now looking for a Senior Software Engineer to take ownership over Data Delivery engineering growth and direction.

Our stack:
Programming Languages: Python.

Tech Stack: PostgreSQL, asyncio, FastAPI, Apache Kafka, ClickHouse, BigQuery, GCS, Scrapy, Selenium, Pyppeteer.

Infrastructure: Kubernetes, Helm, ArgoCD, Grafana, Prometheus, Sentry, OpsGenie.

You could be a perfect match for the position if

You want to:

• Design and implement scalable and efficient services for a web scraping system using Python and relevant libraries.
• Lead the development team in overcoming anti-scraping measures such as CAPTCHAs, rate limiting, and dynamic content loading.
• Mentor and guide junior engineers in the team, fostering their growth and development.
• Automate existing scraper development processes using tools and frameworks to improve efficiency and maintainability.
• Monitor system performance and proactively identify and address any issues.
• Design and implement microservices architecture for modularity and scalability.
• Apply Domain-Driven Design (DDD) principles to ensure clean and maintainable code.
• Stay up-to-date with the latest advancements and best practices in web scraping.

You have:

• 5+ years of experience as a Software Engineer with a strong track record in web scraping.
• Proven expertise in Python and relevant libraries like Scrapy, Selenium, Pyppeteer, Playwright.
• In-depth understanding of web protocols and how modern web works (SSL, proxies, cookies, headers, browsers).
• Experience with anti-scraping detection and bypass techniques.
• Experience with Kafka, Redis, and microservices architecture.
• Familiarity with Domain-Driven Design (DDD) principles.
• Eng — interm +

Pleasant extras:

• Experience with cloud platforms like AWS or GCP.
• Experience with data quality and cleaning techniques.
• Knowledge of machine learning and data analysis techniques.

Soft skills:

• Ability to lead and mentor junior engineers in overcoming technical challenges.
• Proactive approach to identifying and solving problems, seeking out new opportunities.
• Ability to work independently and as part of a team in a fast-paced environment.
• Ability to learn new technologies and adapt to changing web scraping landscapes.

You’re gonna love it, and here’s why:

• Rich innovative software stack, freedom to choose the best suitable technologies.
• Remote-first ideology: freedom to operate from the home office or any suitable coworking.
• Flexible working hours (we start from 8 to 11 am) and no time tracking systems on.
• Regular performance and compensation reviews.
• Recurrent 1-1s and measurable OKRs.
• In-depth onboarding with a clear success track.
• Competera covers 70% of your training/course fee.
• 20 vacation days, 15 days off, and up to one week of paid Christmas holidays.
• 20 business days of sick leave.
• Partial medical insurance coverage.
• We reimburse the cost of coworking.

Drive innovations with us. Be a Competerian.

We seek a talented Middle Python Engineer to join our fully remote Ukrainian team.
 

We’re building scalable, high-performance backend systems and looking for a Middle Python Engineer to help shape the architecture, implement robust solutions, and influence technical strategy. If you love solving complex engineering problems and want real ownership in a small, supportive team – this is for you.
 

What You’ll Do

• Design, build, and maintain backend services with Python and Django.
• Collaborate with engineers, PMs, and designers to define technical solutions.
• Contribute to architectural decisions and long-term platform strategy.
• Write clean, testable, and maintainable code following internal quality standards.
• Integrate with third-party APIs and manage backend infrastructure.
• Optimize performance, scalability, and security.
• Document work and share knowledge with the team.
   

What We’re Looking For

• 3+ years in backend development with Python & Django.
• Strong understanding of REST API design principles.
• Experience with relational databases (PostgreSQL preferred).
• Familiarity with Docker and containerized development.
• Proficiency with Git, API tools (Postman), and basic Bash scripting.
• English level B1+.
   

Nice to Have:

• Experience with CI/CD, cloud platforms (AWS, GCP).
• Exposure to AI/ML integrations.
   

What we offer:

• Fully remote – team distributed across Ukraine.
• 20 paid vacation days per year.
• Flexible working hours to promote a healthy work-life balance.
• Collaborative culture with space for autonomy and learning.

About:
We are looking for a skilled Middle Python Engineer to join our team. 
It's a tech company focused on enhancing the customer experience within the residential construction industry. Their solutions are designed to help home builders better understand and respond to buyer needs throughout the entire homeownership journey from purchase to post-move-in.
The company’s core platform enables builders to gather and analyze customer feedback at key interaction points. It integrates seamlessly with tools like Google, Zillow, and Salesforce, and empowers teams to drive service improvements and higher satisfaction rates.

What We’re Looking For:
 

• 2+ years of development experience in an Agile/Scrum environment
• Proficiency in Python and Flask
• Solid knowledge of MSSQL
• Strong communication skills, capable of effectively discussing technical concepts
• Upper-intermediate level of English 

Responsibilities:

• Design, develop, and maintain backend services and APIs using Python and Flask, and build integrations with the UI part
• Develop new features and components, refactor, debug, and maintain software
• Analyze and optimize application performance, troubleshoot issues, and implement effective solutions
• Work with MS SQL databases: write and optimize complex queries
• Ensure high code quality with unit/integration testing
• Participate in team ceremonies, including sprint planning, daily stand-ups, and code reviews

Would be a plus:

• Experience with microservice architecture
• Eager to learn and work with innovative AI technologies

Detection Engineer (with Python knowledge)

Our client, a Cybersecurity Company, leverages massive amounts of data to construct the valuable insights that keep our customers safe. As cyber threats evolve, so must our detection capabilities. We continuously create and refine detection rules to stay ahead of emerging threats, and these detections must be tailored to the unique environments and needs of our customers for maximum impact. We are seeking a Detection Engineer to lead efforts in automating, scaling, and assuring the quality of our detection content. Your work will directly support the delivery of high-fidelity, SIEM-ready detection rules, ensuring our customers receive timely, relevant, and actionable protection through our product platform.

Responsibilities:

• Lead the development and maintenance of CI/CD pipelines that automate the translation of Sigma rules into SIEM-native detection formats such as KQL, SPL, and ECS-based syntaxes.
• Design and implement robust validation, linting, and QA workflows to ensure the syntactic correctness, logic integrity, and coverage quality of detection rules before they are delivered to customer systems.
• Collaborate closely with detection content authors, threat researchers, and product engineering to align rule logic with attacker behaviors and customer environments.
• Contribute to a centralized detection-as-code platform that manages lifecycle, version control, testing, and release of detections to downstream products.
• Investigate new approaches to detection normalization, enrichment, and telemetry alignment that improve detection effectiveness and cross-SIEM portability.
• Provide mentorship on detection rule structure, QA practices, and platform compatibility.
  
   

Requirments:

• 2+ years of experience in detection engineering, security operations, or threat detection development, ideally within product or platform teams.
• Hands-on experience building or contributing to CI/CD pipelines (e.g., GitHub Actions, GitLab CI, CircleCI) that include automated testing, validation, and deployment.
• Strong understanding of Sigma rule format and its translation mechanisms (e.g., sigmac) into target SIEM languages such as Kusto Query Language (KQL), Splunk Processing Language (SPL), and Elastic DSL.
• Proficiency in Python or Go for automation and tool integration; experience with YAML, JSON schema, and detection-as-code practices.
• Familiarity with cloud-native detection environments (e.g., Azure Sentinel, Chronicle, Elastic Security).
• English - upper-intermediate, Ukrainian - advanced or higher

Would be a plus:

• Experience with Infrastructure-as-Code (e.g., Terraform), container orchestration (Docker/Kubernetes), or QA frameworks for content validation.

We offer:

• Flexible working format - remote, office-based or flexible
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Other location-specific benefits

Job Description

• 5+ years of web development experience
• Strong knowledge of Python
• Strong OOP knowledge
• Experienced in REST API
• Good understanding of complex web services
• Hands-on experience in using Docker and GoogleCloud will be a plus
• Intermediate English is a must

Job Responsibilities

• Developing new modules and features
• Fixing defects
• Writing unit tests
• Performing code review
• Testing the code on all levels (unit, integration, system, e2e)
• Take part in calls with customer

Department/Project Description

Project for one of the largest multinational corporations that specialize in Internet-related services. The project consisted of two independent multi-service/multi-cluster applications focused on advertising technologies and analytics. Applications used many Google APIs and Cloud Platform services, such as Kubernetes orchestration system, Cloud Storage (including storage triggers), Cloud Functions, Cloud Scheduler, Pub/Sub communication, Big Query, CloudSQL (Postgres), Google App Scripts, Google Ads API, Google Adwords API

The company is looking for a Senior Python Engineer (Gen AI) for remote work.

This is home to 200+ engineers, designers, analysts, and advisors solving complex business challenges through technology.

Our client is a global software-as-a-service company that builds a cloud-based data platform that enables the use of connected data and automation of reporting across finance, accounting, risk, and compliance, offering services to 85% of FORTUNE® 500 companies.

We’ve built a data service that stores, modifies, and queries graph data structures. This service is utilized by a large number of enterprise clients to manage, retrieve, and audit their financial data.
We handle financial records for hundreds of millions of clients across Asia, Europe, and the Americas.

As a Senior Python Engineer, you will design and build the Platform for the Augmented Retrieval Generation (RAG) solution for the ecosystem of software products developed by the company internally.

Must have experience in Python development, LLM integration (OpenAI API or equivalent), and RAG implementation.

As a plus: expertise in AWS cloud services.

As a Python  Developer, you will support our AI projects with backend skills. As you grow with us, you'll have the opportunity to work on diverse projects, potentially transitioning to our AI team or collaborating with other departments on cutting-edge technologies.

Key Responsibilities

• Design, implement and maintain Python microservices that power our AI pipelines
• Write clear, maintainable code and comprehensive unit/integration tests
• Collaborate with ML engineers to integrate prompt-engineering workflows into production APIs
• Automate routine tasks and monitor service health using our CI/CD and observability tools
• Participate in code reviews, design discussions, and sprint planning
• Contribute to internal tooling, documentation, and “best-practice” guides

Hard Skills

• 1–3 years of professional Python development experience
• Solid understanding of RESTful API design (FastAPI, Flask, or Django REST Framework)
• Experience with asynchronous programming (asyncio, aiohttp, Celery, etc.)
• Strong test-driven development skills (pytest, mocks, CI pipelines)
• Comfortable with SQL and at least one ORM (SQLAlchemy, Django ORM, Prisma client)
• Good command of Git workflows and code review processes

• Written and spoken English

   

Nice-to-Have

• Hands-on with STT/TTS or other voice-AI frameworks
• Experience fine-tuning LLMs or working with large-language models
• Exposure to monitoring/logging stacks (Prometheus, Grafana, ELK)

Soft Skills

• Strong problem-solving and analytical abilities
• Passion for AI and continuous self-learning (paper reading, experimentation)
• Effective communicator; thrives in a fast-paced, collaborative startup environment
• Proactive mindset: identifies gaps and drives improvements

On behalf of our customer we are seeking for a Senior Software Engineer. You will play a pivotal role in shaping the foundation of the security platform.
 

Our customer is a unified AI security platform that covers the entire lifecycle of artificial intelligence systems — from development to production deployment.
 

Your responsibilities:

• Take ownership of building our platform from the ground up, from architecture to deployment.
• Collaborate with the R&D team to architect, design, and develop the Pillar platform.
• Refine product features based on user feedback and ensure technical requirements align with user needs.
• Contribute to full-stack development, working across both front-end and back-end systems.
• Innovate and solve cybersecurity challenges with a talented team of engineers.
• Establish and promote our R&D culture and best practices.
   

Qualifications:

• 6+ years of Software Engineering Experience
• Hands-on experience building production grade SAAS systems
• Experience with Python - must, TypeScript - advantage. React and Node.js is an advantage
• Working experience with Postgres or other relational databases, experience with data modeling
• A strong passion for the LLM space and AI engineering, with a focus on contributing to the development and evolution of AI-driven security solutions
• Familiarity with AWS services (e.g., EKS, ECR) is a plus
• Deep understanding of cloud architecture and modern system design principles, experience working with k8s is an advantage
• Strong ability to take ownership and manage tasks autonomously, ensuring accountability for features from start to finish
   

What we can offer you:

• Remote work from Ukraine or Poland or other EU countries
• Accounting support & consultation
• Opportunities for learning and developing on the project
• 20 working days of annual vacation
• 5 days paid sick leaves/days off; state holidays
• Provide working equipment

We are Performa, an HR agency, and we're excited to find a top-notch professional for one of our clients. We're currently seeking an experienced Game Mathematician.

Aceroll.io is an independent game studio and technology provider focused on building high-quality online slot games and iGaming infrastructure. We combine deep mathematical expertise, modern development frameworks, and a cross-functional team of product managers, engineers, designers, and legal experts to deliver scalable, certified gaming solutions tailored to global markets.

Our platform supports full flexibility in game configuration, regulation, and integration - from custom slot mechanics to certified RGS/API distribution for operators and aggregators.

About the project:
We’re building certified slot games with innovative mechanics and dynamic volatility. You’ll be working with a Python-based mathematical SDK used to design, simulate, balance, and optimize games across multiple jurisdictions and configurations.

Your responsibilities:
● Design and balance math models for slot games (RTP, volatility, feature frequency, symbol distributions).
● Analyze game performance through simulation data, logs, and visual outputs.
● Configure parameters and constraints for game behavior (payout curves, hit frequency, bonus entry logic).
● Test and validate the math behind all game modes: base game, bonuses, free spins, and modifiers.
● Use and expand our internal Python SDK to simulate and fine-tune game behavior.
● Work closely with game designers and developers to implement, test, and optimize mechanics.
● Create mathematical documentation and certification sheets for external labs (GLI, BMM, etc.).

Tech stack & tools:
● Python-based SDK tailored for slot math modeling and simulation.
● NumPy, pandas, matplotlib for analysis and visualization.
● AWS for simulation batches (EC2 / Lambda / Batch / S3).
● Version control via Git (GitHub).
● Optionally: Jupyter, Excel, or your favorite analysis tools.

What kind of background we’re looking for:
● Strong background in mathematics, statistics, or physics.
● Experience designing and balancing slot or casino games is highly preferred.
● Solid Python skills - especially with data analysis and numeric computation.
● Deep understanding of RTP, volatility, win distribution, paytable mechanics.
● Ability to work independently, run large batches of simulations, and interpret results.

Bonus: experience with certification processes and lab requirements.

We offer:
● Remote work or working from our offices in Lisbon, London, or Warsaw.
● 20 paid vacation days annually.
● Direct influence on the shape of every game we build.
● Close collaboration with developers and designers.
● A stable pipeline of creative, math-heavy projects.
● Opportunities to shape our internal math tools and workflows.

We are seeking an experienced Senior Backend Engineer to join our dev department. Our backend is developed all in Python running in the cloud over k8s. It's not a typical backend interacting with a UI frontend, handling audio streams in real-time. Our systems integrate with a large number of third party services. Because of the myriad of challenges and the fast pace of a startup, each team member gets to experience a lot of professional growth and ownership. About the role:

In this role, you will:
● Integrate with new POS systems and digital menu boards
● Build data pipelines to process restaurant menus
● Support existing integrations and pipelines
● Debug and solve complex customer issues
● Lead communication with integration partners to deliver the integrations
● Estimate, plan and deliver the integration projects
● Handle a large set of complex and diverse customer issues
● Create documentation for integrations

Qualifications:
● BSc in Software Development or equivalent industry experience
● 5+ years experience in Python
● Strong backend development and software architecture skills
● Experience in developing and deploying multiple projects used in production
● Proficient with Async IO
● Experience with CI/CD, Clouds (AWS/GCP/Azure), Linux, Docker, Kubernetes, 3rd Party API integrations
● Experience with Data Pipelines, ETL
● Prior experience working in startups
● 2+ years of experience as a tech lead or team lead

Bonus:
● Knowledge of concurrency
● Experience with React

Qualities We're Looking For
● Resilience – being able to balance planned work with real-time issues in a fast-paced, high-pressure environment
● Strong communication skills – in both written and verbal communication, with the ability to produce crisp and clear documentation
● Problem solver
● Strong ownership and independence
● Team player
● Fast
● Star Performer
● Passionate about their work

Looking for Senior Python Engineer with GenAI Experience
 

• Start: ASAP
• Duration: Long Term

• Type: Remote / EU preferred but offshore also possible

   

Tech Requirements:

• 5+ years’ experience as a Python Engineer
• Strong experience with API frameworks (Flask, FastAPI, Django)
• Experience with GenAI, LLMs, RAG (Traditional & Agentic)
• Good front-end skills: HTML, CSS, JavaScript, React
• Docker, CI/CD pipelines, Git
• Familiarity with Elasticsearch
   

Nice to have: Next.js, strong interest in AI, academic background in Computer Science or related field

Job description

 

About Fulcrum: 

We’re a team of tech-savvy, creative & passionate IT professionals. We’ve created a vibrant and performance-driven culture for ourselves where everyone is free to think & act outside the box. There are literally no limits to what you can do here, as long as we WOW our clients and OVER deliver what we promise.

About the role:
 

We are looking for a skilled Python developer (preferably with Angular experience)
 

The project develops software solutions for business administration and accounting practice management. One product streamlines equity management, shareholder communication, board meetings, digital signing, and compliance reporting for companies with multiple investors. The other is a practice management platform for accounting firms, designed to optimize workflows, client communication, and operational efficiency, currently piloted by several large accounting companies with thousands of expected daily enterprise users.

 

Job requirements:
 

• 3+ years of experience as a Python developer
• Django Framework Proficiency
• Databases (MySQL or PostgreSQL)
• REST API (design and development)
• WebSockets for real-time features
• Familiarity with base AWS services (S3, RDS, etc.) or other cloud platforms
• Async Django (asgiref, Channels, async views)
• Proficient English communication skills

Nice-to-have skills:

• Angular experience
• Previous work in complex, high-quality codebases
• Experience with B2B SaaS platforms
  
   

Main tasks:

 

• Develop and maintain backend features in Django
• Contribute to system architecture and design decisions
• Collaborate with the team on feature implementation and problem-solving
• Work in a complex and challenging codebase
• Participate in pair programming with lead developer when required

What we offer:

— Flexible schedule & opportunity to work remotely or workspace in Kyiv (kooperativ.cc);
— Friendly & open team who have fun creating cool projects together;
— Opportunity to boost your professional & personal growth;
— Regular team gathering activities;
— 20 business days of paid vacation + UA national holidays;
— Medical insurance full coverage;
— 10 + 5 days paid sick leave;


How we operate:

— We promise dramatic professional growth & interesting work;
— Bring ideas that will change how Fulcrum operates, and you will receive our gratitude and rewards;
— Your opinion matters. Fulcrum is not a typical ’bureaucratic company, and our employees are our core value;
— Your compensation grows with your responsibility zone;
— If something doesn’t go smoothly or can be simplified, just let us know — you are welcome to do so;
— You have a say in everything we do, starting from the roadmap, creating requirements, sprint planning, etc.;
— If you feel that everything above is about you, get in touch. We’re always glad to welcome stubborn, enthusiastic, and result-oriented buddies to our team.

 

Are you interested in working with us?

LET’S MOVE THE WORLD TOGETHER!

On behalf of our Client from the USA, Mobilunity is looking for a Senior Backend Engineer (Python/Go) for a long-term engagement.

This company specializes in developing innovative digital solutions for businesses, focusing on modular e-commerce, web performance optimization, and AI-driven retail technologies. They create flexible, API-first architectures that enhance scalability and user experience. Their expertise includes AI-powered recommendations, conversational commerce, and tailored digital experiences across various industries. With a customer-centric approach, they integrate artificial intelligence to drive efficiency and growth. 

As a Senior Backend Engineer on the Messaging team, you will be responsible for the entire lifecycle of the services that power our communication platform. You will tackle challenges in scalability, real-time data processing, and cross-platform compatibility. You will work closely with a talented team of engineers, product managers, and mobile developers to deliver a seamless and reliable messaging experience that sets new industry standards. Your architectural decisions and hands-on coding will be pivotal in shaping the future of our platform.

We are seeking a highly skilled and experienced Senior Backend Engineer to architect and build the core of our next-generation messaging infrastructure. This role is a unique opportunity to work on complex, large-scale systems that power modern communication experiences, directly impacting how millions of users connect. You will be at the forefront of designing and implementing robust services that handle iMessage and RCS protocols, ensuring reliability, speed, and security.

Responsibilities:

• Architect, develop, and maintain highly scalable, low-latency backend services and APIs for our messaging platform.
• Lead the technical design and implementation of features for messaging protocols, with a strong focus on iMessage and RCS.
• Collaborate with mobile engineering teams (iOS and Android) to ensure seamless integration between the client-side applications and backend services.
• Drive technical decisions around our backend stack, database choices, and deployment strategies to ensure performance and reliability at scale.
• Establish and champion best practices for coding, testing, and CI/CD within the backend engineering team.
• Mentor junior and mid-level engineers, fostering a culture of technical excellence and continuous learning.
• Monitor, troubleshoot, and resolve production issues, ensuring the high availability and performance of our messaging systems.

Requirements:

• 5+ years of professional experience in backend software development.
• Strong proficiency in a modern backend language, preferably Python or Go.
• Proven, non-negotiable experience in architecting or developing systems that integrate directly with large-scale messaging platforms and protocols like RCS, iMessage, or comparable third-party services (e.g., WhatsApp Business API, Telegram Bot API).
• Demonstrated experience designing and building distributed systems, microservices, and RESTful APIs.
• Solid understanding of real-time communication technologies (e.g., WebSockets, gRPC).
• Experience with cloud infrastructure and services (AWS, GCP, or Azure).
• Proficiency with both SQL and NoSQL databases (e.g., PostgreSQL, Cassandra, Redis).

• Level of English – Upper-Intermediate and higher

   

Advanced Technical Knowledge

• In-depth knowledge of message brokers and event-streaming platforms (e.g., Kafka, RabbitMQ, SQS).
• Familiarity with telecommunication standards and protocols (e.g., GSMA Universal Profile, SIP, XMPP).
• Experience with containerization and orchestration technologies (Docker, Kubernetes).
• Deep understanding of network protocols and security best practices, including transport-level security and end-to-end encryption.

• Experience with performance tuning and optimization of high-throughput, low-latency systems.

   

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Paid sick leaves, including 5 paid days per year that don’t require a sick note
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups

🐳Come on board, and let’s grow together!🐳

We create slots that deliver true excitement and a premium experience to players 🎰. Our team works on the full cycle of RMG slot game development 🎮🎮🎮🎮 🚀.

We're looking for a talented specialist to join our team in creating innovative slots. You will implement mathematical models for games, ensuring a balance between engagement, rewards, and profitability 🧠.

If you love game development, know how to turn an idea into a thoughtful game experience, and want to work with cutting-edge technologies — this role is for you! 💻

Our key expectations 🎯:

• Higher education in computer science, technology, engineering, or mathematics;
• 3+ years of commercial experience with Python as the main programming language;
• Experience with RMG Slot Games;
• Attention to detail and ability to identify and fix even minor errors in mathematical models;
• Analytical thinking and data-driven decision-making approach.

Your daily tasks will include 🔧:

• Analyze GDD to define mathematical models of the base game for future projects;
• Implement mathematical models and game logic based on the Game Design Document;
• Optimize backend, perform testing, create cheat codes for QA, and collect statistics;
• Collaborate with mathematicians and game developers to configure mathematical functions according to predefined rules;
• Ensure backend stability and security, and respond to live incidents;
• Verify the correctness of game rules via simulation of the game’s mathematical model;
• Support client developers during integration and provide regular feedback;
• Prepare for deployment of game modules and ensure correct backend rollout.
•  

Would be a plus ✨:

• Basic understanding of client-side development;
• Experience with game deployment, live environment monitoring, basic JavaScript skills;
• English proficiency for communication with the team and partners.

We value our team and create comfortable conditions to bring your ideas to life 📈:

• Collaboration with senior-level specialists: work in a team where every idea matters and your contribution shapes the result;
• Product impact: participation in all stages of game development, from the first concept to release. You’ll be able to realize even the boldest ideas;
• Freedom to work comfortably: flexible working hours and remote work opportunity.
•  

And we have some bonuses for you ✅:

• Paid sick leaves so you always feel in the game;
• 20 working days of paid vacation per year 🏖️;
• Access to conferences, training, and events for professional development;
• Equipment and everything necessary for productive and comfortable work.
•  

Location: Remote 💻

Join our team! And remember: The only thing we take seriously is fun 🌍.