Jobs

Infozahyst is a Ukrainian scientific and production center that has been developing software and hardware solutions for Ukraine’s security and defense forces for over 20 years.
We are engineers, analysts, and researchers united by a common goal: to create technologies that ensure Ukraine’s security.

Requirements: 

• 8+ years of professional C# / .NET, 4+ years in a Senior, Tech Lead or Architect role with cross-team
scope.
• Deep knowledge of the CLR (memory model, GC, JIT, allocation patterns, finalization) and core C#
(generics, LINQ, expression trees, async/await internals, synchronization contexts, etc).
• Working knowledge of modern C# (8+): pattern matching, nullable reference types, records,
switch expressions, etc.
• Practical experience with .NET Framework → modern .NET migrations.
• Strong expertise in WPF (MVVM) and data-intensive desktop applications: virtualization, binding
cost, Freezable, Dispatcher patterns, custom controls and ControlTemplate, high-DPI and screen
scaling, UI Automation.
• Solid experience with multithreading: TPL, TPL Dataflow, synchronization primitives, lock-free
patterns, ThreadPool tuning.
• Experience building applications that process real-time streaming data from devices, sensors, or
network endpoints.
• Solid understanding of network programming: TCP/UDP, binary protocols, framing, backpressure,
reconnect logic.
• Hands-on experience with low-allocation patterns and SIMD in .NET: Span<T>, Memory<T>,
ArrayPool<T>, System.Numerics.Vector<T>, hardware intrinsics.
• Strong database skills: MS SQL Server, T-SQL, execution-plan analysis, EF Core, Dapper.
• Strong grasp of software design and architectural review: SOLID, GRASP, DDD, separation of
concerns, clean architecture, design patterns, focus on maintainability, testability, performance.
• Solid foundation in algorithms and data structures: big-O notation, collections trade-offs, graph
and dynamic-programming techniques where applicable to signal-processing tasks.
• Experience with profiling and diagnostics: dotTrace, dotMemory, Visual Studio Profiler, ETW /
PerfView, BenchmarkDotNet.
• Hands-on experience with unit / integration testing (including TestContainers), CI/CD pipelines,
quality gates.
• Proficient with Git and modern branching / code-review practices.
• Track record of horizontal expert work: setting standards, cross-team reviews, mentorship,
ownership of domain artifacts (competency matrix, tech radar, coding standards, lessons learned,
etc).
• Experience as an independent technical evaluator in hiring and Performance Review.
• Excellent communication and mentoring, able to defend technical positions in writing and in
discussion.
• English: B2 or higher.

Preferred Skills:

• DSP fundamentals: FFT, windowing, FIR / IIR filtering, spectral analysis, I/Q data.
• Radio engineering and SDR: modulation types, channel and noise models, baseband vs passband,
link-budget analysis, SDR architecture and sample-streaming interfaces.
• GPGPU (CUDA, OpenCL, ILGPU) for signal-processing workloads.
• Native interop in .NET: P/Invoke and C++/CLI for performance-critical code and hardware
integration.
• Public technical activity: articles, conference talks, open-source contributions, etc.
• Agile (Scrum / Kanban) with release-based planning.

Key Responsibilities:

• Co-own the .NET competency matrix and domain tech radar with the Head of Engineering
Excellence Center.
• Author coding standards, review templates, checklists and reference solutions contributing deep
cross-domain expertise.
• Build and run internal enablement: lectures, workshops, mentorship.
• Provide expert consultation and architectural review across projects.
• Drive root-cause analysis of complex defects across .NET projects.
• Define release-readiness criteria within the domain.
• Design and run technical interviews, calibrate ratings across interviewers.
• Act as independent technical evaluator in Performance Review, support IDP design.
• Support pre-sale (assumptions, risks, recommendations), contribute to Project Brief and Project
Cost without owning delivery.
• Surface project problems suitable for a research track and hand them to the Head of Research
Programs.
• Represent the domain externally (articles, talks, meetups, recruiting brand, etc).

Benefits:

• Employment in a stable and reliable company;
• Working remotely, but available to visit office in Kyiv once a month;
• Competitive salary;
• A 5-day work week with an 8-hour workday within the 9:00–20:00 time window;
• Support for personal and professional growth, including opportunities for training and reimbursement of its cost;
• Care for employee health through medical insurance, 18 working days of paid vacation, and sick leave coverage;
• Openness to new ideas and approaches, with healthy communication within the team;
• Unique and exciting projects;
• Involvement in a mission that brings us closer to victory!

Dear candidates, we will review your resume within 10 business days, and if the decision is positive, we will definitely contact you. If you do not receive feedback from us, it means that we are not ready to offer you this position at the moment.

We’re looking for a Senior Engineer who thrives on unfamiliar problems — someone who can land in a customer’s environment, reverse-engineer poorly-documented vendor APIs, and ship a working integration end-to-end, solo.

What makes you a great fit:

• 5+ years of professional software development experience, including 3+ years of hands-on experience in Python.
• Proven track record in designing and building integrations against third-party REST APIs.
• Comfortable working in unfamiliar codebases and picking up new stacks as engagements demand.
• Upper-intermediate written and spoken English.
• Self-managed in an async remote setting — strong ownership, communication, and time management.
• Curiosity and dive-deep mentality — comfortable when documentation is incomplete or absent.

• AI-as-tool fluency — productive use of Claude code, Copilot, Cursor, or similar for research and implementation.

   

Will be a plus:

• Prior customer-facing engineering experience (joining technical calls, gathering requirements).
• Familiarity with security products (SIEM, EDR, vulnerability management, threat intel, firewalls, etc.).

• Experience working in or alongside a SOC.

   

Why work with us?

• People-first management with minimal bureaucracy
• A friendly company culture, proven by employees who choose to return
• Flexible working hours
• 29 days of PTO (18 working days per year, plus all national holidays)
• 10 paid recovery days
• Full financial and legal support for independent contractors
• Free English classes, with native speakers or Ukrainian teachers

• Dedicated HR support

   

Your day-to-day in this position:

• Design and build bespoke integrations between our products and customer-specific security stacks — primarily in Python, occasionally in whichever stack the engagement demands.
• Tackle the hardest integration problems: the non-conventional, “out-of-the-books” engagements that standard product connectors can’t cover.
• Own each engagement end-to-end — discovery and technical scoping through implementation, testing, and handover.
• Join customer technical calls alongside PM/CSM to sharpen requirements; drive written follow-up between sessions.
• Reverse-engineer poorly-documented vendor APIs and build robust integrations against them.

• Capture learnings from each engagement and feed them back to the product and integration teams so the next engagement is easier.

   

What is your new project?

• Domain: Computer and network security
• Location: Israel
• Company size: 51-200 employees
• Founded in: 2009
  
  Our next steps:

✅ Intro call with a Recruiter — ✅ Tech livecoding interview — ✅ Tech theoretical + system design interview — ✅ Managerial interview — ✅ HR client interview — ✅ Reference check — ✅ Offer

 Hi! We are looking for a Senior Node.js Backend Developer to join our pack at SharksCode 🦈💙
 SharksCode is a Ukrainian IT company that develops high-tech software solutions and B2B platforms, particularly in the iGaming industry.
 We are looking for a Senior Node.js Backend Developer who will work on building scalable backend services and integrations within a distributed architecture. In this role, you will participate in designing and developing platform services, integrating external systems, and contributing to technical decisions that impact the overall product architecture.

We expect that you:
– Have 5+ years of commercial experience with Node.js development.
– Have experience developing REST APIs and/or GraphQL services.
– Have strong proficiency in TypeScript.
– Have hands-on experience with MySQL or PostgreSQL.
– Have experience integrating third-party APIs and services.
– Have experience working with message queues (RabbitMQ, Kafka, or similar).
– Understand distributed systems architecture.
– Have experience using Redis for caching or Pub/Sub mechanisms.

Your future responsibilities:
– Design and develop backend services and product functionality.
– Build and maintain integrations with third-party financial and technical services.
– Develop public payment APIs and internal microservices.
– Participate in technical discussions and architecture decisions related to platform development.
– Ensure high code quality and follow engineering best practices.
– Share knowledge and contribute to the development culture within the team.

Nice to have:
– Experience working with high-load systems, especially with live or real-time data.
– Experience writing automated tests (Unit, Integration, E2E).
– Experience with WebSocket, gRPC, or other real-time technologies.
– Knowledge of architectural patterns such as CQRS, Event Sourcing, or DDD.
– Experience with Docker, Kubernetes, or CI/CD pipelines.
– Experience working in the iGaming or betting industry.

Interview stages:
🤝 Interview with Recruiter.
🧠 Technical Interview.
💙 Offer.

We offer:
🌴 24 paid vacation days, 14 sick days, and 5 days off.
⏰ Flexible start of the working day — from 9:00 to 11:00.
🏥 Medical insurance.
💰 Bonuses and performance-based rewards.
🐶 Office in the center of Kyiv — pets are welcome, we are pet-friendly.
💆 Lounge area in the office to recharge during the day.
🎾 Padel tennis, football, and training at the polygon for those who enjoy active leisure.
📚 Learning compensation, internal meetups and workshops, as well as access to the corporate LMS with courses.
🎁 Corporate currency that can be exchanged for merch, gifts, or additional benefits.

Our Customer:

Our client is a technology company developing a digital platform for insurance-related services in the travel domain. The product combines real-time customer support, automated operational workflows, claims processing, and data-driven tools to improve the overall user experience.

Your tasks:

• Design, develop, and deploy scalable, high-performance backend services for web and mobile applications;
• Take ownership of backend features end-to-end;
• Write clean, maintainable, and well-documented TypeScript code;
• Build and optimize PostgreSQL schemas, queries, and data flows;
• Perform code reviews, troubleshoot production issues, and improve system reliability and performance.

Required experience and skills:

• 6+ years of experience in backend development;
• 5+ years of hands-on experience with Node.js;
• Experience working with cloud platforms (AWS);
• Strong proficiency in TypeScript;
• Experience with Nest.js;
• Experience with PostgreSQL or other relational databases;
• Experience working in scalable production environments;
• Excellent troubleshooting and problem-solving skills;
• Strong communication skills;
• English level: C1 for direct communication with the client;

📍 Location: EU only
🕒 Full-time | Long-term project (initially 6 months+)
🕘 Working hours: 9:00–18:00 CET
 

We’re looking for a strong Senior NLP & Python Developer to join an innovative AI-powered healthcare product focused on clinical trial automation and protocol intelligence.

The product is a next-generation Clinical Trial Management System (CTMS) that uses AI to analyze complex medical protocols (100–400+ page documents) and transform them into structured, executable workflows for research sites and clinical operations teams.

You’ll work on advanced NLP/RAG pipelines, scalable backend architecture, and AI systems that must meet strict healthcare compliance and auditability requirements.

What you’ll work on

• Designing and optimizing RAG pipelines for medical protocol parsing
• Building AI-powered extraction systems using LangChain, LangGraph, LLMs, and VLMs
• Improving AI traceability, reproducibility, and deterministic outputs
• Developing scalable backend services with FastAPI and PostgreSQL
• Working with vector databases (pgvector) and embedding pipelines
• Implementing document classification and extraction workflows
• Enhancing observability, validation, monitoring, and testing
• Supporting validation-ready and compliance-oriented architecture
• Improving performance and scalability of AI/ML infrastructure

Tech Stack

• Python 3.14
• FastAPI
• SQLModel / SQLAlchemy / Pydantic v2
• PostgreSQL + pgvector
• LangChain / LangGraph
• Docker / Docker Compose
• Celery
• Redis
• RabbitMQ
• NLP / LLM / VLM pipelines

Requirements

• 5+ years of commercial Python development experience
• Strong experience with FastAPI and SQLAlchemy
• Deep knowledge of PostgreSQL (schema design, indexing, optimization)
• Experience with Docker and microservice architecture
• Hands-on experience with LangChain and RAG systems
• Experience with vector databases (preferably pgvector)
• Strong understanding of embeddings, prompt engineering, and AI orchestration
• Experience with Celery, Redis, RabbitMQ
• Practical experience with document extraction / NLP systems
• Experience working in regulated industries (healthcare, fintech, life sciences, etc.)
• Strong architectural and system-design mindset
• Upper-Intermediate+ English

Nice to have

• Experience with GxP or healthcare-compliant AI systems
• Experience with AI explainability and auditability
• Familiarity with Ruff, Poetry, pre-commit hooks
• Experience scaling AI-heavy platforms

Team

You’ll collaborate with:

• ML Architect
• Senior ML/Python Engineer
• Frontend Engineer
• QA Engineer
• BA & PM

This is a high-impact role where you’ll directly influence the architecture of a complex AI healthcare platform.

📩 If you have strong Python + NLP/RAG expertise and want to work on meaningful AI systems in healthcare — apply now.

Location: Remote (Europe)
Experience Level: 5+ years

About the Project
We are looking for a Senior Backend Developer (close to Architect level) to design and build core backend services for the ORA platform. The role is focused on secure cloud integration using KMIP and Barbican, with strong involvement in cryptography, Kubernetes, and open-source technologies.

Key Requirements

Must have:

• Senior-level experience in backend development with Java, Golang, or Python
• Proven hands-on experience in crypto-related projects (clearly visible in CV)
• Strong understanding of cryptography, including TLS and data encryption
• Practical expertise with Kubernetes (infrastructure and management layers)
• Experience working with OpenStack
• Solid background in unit and integration testing
• Experience designing and maintaining distributed systems and core backend services
• English level: Upper-Intermediate / Advanced (C1+)

Nice to have (at least one of):

• Experience with KMIP and key management systems
• Knowledge of Barbican or similar solutions
• Understanding of cloud convergence and ORA architecture
• Experience with microservices scalability and performance optimization
• Familiarity with open standards and open-source integrations

Tech Stack
Java, Golang, Python, Kubernetes, OpenStack, Unit Testing, Integration Testing

Responsibilities

• Design and develop core backend services for ORA
• Integrate with KMS via KMIP (e.g., Barbican, Ceph)
• Build and manage Kubernetes-based infrastructure (CRDs, operators, controllers)
• Implement secure communication using TLS and encryption mechanisms
• Collaborate with architecture and infrastructure teams
• Develop and maintain unit and integration tests
• Participate in architectural decisions and provide technical leadership

Senior Python Engineer (AI-driven Recommendation Platform, iGaming domain)

About the Product

We are developing an AI-powered performance optimization platform for online casinos and sportsbooks. The solution helps operators improve key business metrics by increasing player engagement and loyalty through personalized recommendations and predictive analytics.

The platform collects and processes player behavior data across multiple systems, builds detailed user profiles, and generates actionable insights, including:

• identifying players who misuse bonus programs without long-term retention
• detecting patterns of risky or excessive gaming to support responsible play
• recommending relevant games and activities based on user preferences and behavioral history

You will join a team building scalable recommendation systems, working with large volumes of data, and implementing ML-driven personalization to enhance user experience within iGaming products.

Requirements

• 5+ years of backend development experience with Python
• Strong foundation in mathematics, statistics, or computer science
• Hands-on experience with FastAPI, Django, or Flask
• Solid knowledge of data structures, algorithms, and distributed systems
• Experience with SQL and NoSQL databases (PostgreSQL, Redis, DynamoDB, MongoDB, etc.)
• Practical experience with Kafka or RabbitMQ and asynchronous architectures
• Cloud experience with AWS (Lambda, S3, RDS, SQS, etc.)
• Experience designing and maintaining high-load, scalable systems
• English level — B2 or higher

Nice to Have

• Experience with recommendation systems, data analysis, or ML-based personalization
• Understanding of data pipelines and ETL processes
• Experience with Kubernetes, Docker, and CI/CD pipelines
• Familiarity with Elasticsearch and monitoring/visualization tools (Grafana, Kibana)

Responsibilities

• Design and develop scalable backend services for AI-powered recommendation systems
• Collaborate with data scientists and ML engineers to deploy models into production
• Optimize data storage, processing, and retrieval for large-scale user datasets
• Ensure system reliability, performance, and scalability
• Take part in architectural discussions, code reviews, and mentoring
• Contribute to new features aimed at increasing player engagement and retention

Tech Stack

Python, FastAPI, Django, Flask, Kafka, RabbitMQ, PostgreSQL, Redis, DynamoDB, AWS (Lambda, S3, RDS, API Gateway, CloudWatch), Kubernetes, Pandas, NumPy, SQLAlchemy, Celery, Elasticsearch, Prometheus, Grafana.

Company
The company specializes in lead generation within the iGaming domain, primarily through SEO-driven solutions. They work on long-term client projects and are currently expanding their internal development team.

Position Overview

We are looking for a Lead / Senior Full-Stack Engineer who operates at a true senior / lead level — not by years of experience, but by depth of expertise and ownership.

This role is for someone who:

• takes full ownership of complex systems
• makes architectural decisions
• builds scalable solutions (not just features)
• sets and raises engineering standards within the team

Location & Format

• Remote
• EU time zone required
• Full-time, long-term cooperation

Language Requirements

• English — required for daily communication
• Strong English is a significant advantage

Team & Projects

You will join a stable team working on long-term lead generation platforms.

This is not a task-execution role. We expect you to:

• take ownership of complex technical decisions
• improve architecture and system performance
• raise the overall engineering bar within the team

Tech Stack

• PHP (Symfony)
• WordPress
• JavaScript
• HTML / CSS

Key Requirements

WordPress (must-have, advanced level)

• Experience building complex, large-scale WordPress systems (not content websites)
• Hands-on experience with WordPress Multisite (production)
• Strong experience with custom plugin development, including:
  • OOP
  • Composer / autoloading
  • Typed properties
• Experience with:
  • custom database structures
  • custom caching strategies (not plugin-based)
  • advanced use of WP_Query
  • improving developer & admin tooling

👉 If your experience is mostly theme customization or plugin usage — this role is not a fit.

PHP (strong senior level required)

• 5+ years with modern PHP (8+)
• Ability to design abstractions, libraries, and internal frameworks
• Experience with:
  • phpcs / phpcbf
  • custom sniffs OR PHPParser / AST
  • reflection & introspection
  • DTOs, Value Objects, clean architecture principles

Frontend / CSS

• Strong modern CSS skills (must-have)
• Understanding of browser rendering, layout, and performance

Performance & Optimization (critical)

• Deep understanding of Core Web Vitals
• Real experience with performance optimization (not just tools/plugins)
• Ability to identify bottlenecks and design custom solutions

Mindset & Approach

We are looking for engineers who:

• think analytically and architecturally
• deeply understand systems, not just tasks
• challenge “working solutions” and improve them
• proactively raise engineering standards

👉 If you mainly execute tasks and rely on predefined solutions — this role is not a fit.

AI Usage

• AI is allowed, but must not be a dependency
• Strong preference for engineers with deep system understanding
• AI-generated communication is discouraged

Start Date

• ASAP

Domain: iGaming / Gambling
Format: Product company
Experience: 5+ years

About the Company

We are an international product company operating in the gambling sector. Our platform delivers real-time personalization for casino and sportsbook products using advanced machine learning. The solution processes live behavioral, transactional, and contextual data to improve player engagement, retention, and overall performance for operators worldwide.

Our focus is on building production-grade ML systems that directly influence what users see in real time — from game recommendations to personalized content and promotions.

Role Overview

We are looking for a Senior Data Scientist to join a product-focused team working on real-time personalization and recommendation systems for iGaming platforms.

This is a hands-on role that combines modeling, experimentation, and close collaboration with engineering and product teams in a high-load, real-time production environment.

Main Responsibilities

• Develop ML-driven features for casino products using supervised learning (regression, ranking, classification)
• Maintain and improve existing recommendation systems in production
• Enhance models using gradient boosting and other supervised approaches
• Perform data cleaning, preprocessing, and feature engineering
• Design and maintain pre- and post-processing workflows
• Optimize training and inference pipelines for performance and reliability
• Integrate ML models into Airflow pipelines in a multi-tenant environment
• Adapt and configure the solution for different clients (tenants)
• Collaborate closely with product and engineering teams on experimentation and feature delivery

As Part of the Team You Will

• Work cross-functionally with data scientists, engineers, product owners, designers, and researchers
• Analyze large-scale datasets to extract insights for product and business decisions
• Propose, implement, and evaluate ML approaches to solve real business problems
• Support and evolve a recommendation solution used across multiple tenants
• Influence product strategy through research, experimentation, and data-driven insights into user behavior

Experience & Education

• 5+ years of professional experience in data science
• Degree in a quantitative field (Mathematics, Statistics, Computer Science, or similar)

Core Skills

• Strong proficiency in Python and SQL
• Hands-on experience with data processing tools (Pandas, Polars)
• Solid engineering skills for building and maintaining scalable ML systems
• Experience implementing observability in ML pipelines (metrics, logging, alerting)
• Knowledge of Docker and Kubernetes
• Strong analytical mindset with the ability to solve loosely defined problems
• Hands-on experience with supervised ML techniques, including:
  • Regression and ranking models (XGBoost, LightGBM, CatBoost, neural networks)
  • Feature engineering and model evaluation (AUC, NDCG, MSE, uplift metrics)
  • Personalization or recommendation systems
• Proven experience deploying ML models to production (near real-time or batch)
• Solid understanding of statistical methods (A/B testing, significance testing)

Nice to Have

• Production experience with large-scale recommendation systems
• Experience with Airflow, Valkey/Redis, FastAPI in production
• Familiarity with contextual bandits or reinforcement learning
• Experience with AutoML tools

We're looking for a talented QA Automation Engineer to help us deliver reliable, high-quality products in the cybersecurity field.  You'll own the automation layer for our cybersecurity platform: designing test frameworks from scratch, running performance and load tests, and building realistic environments that mirror production. This isn't a "write test scripts and call it a day" role - you'll be shaping QA strategy and working deep in the stack.

What you'll do:

• Build and scale API & backend automation frameworks for a complex security platform
• Automate testing for detection, protection, and response workflows
• Design end-to-end test environments using Kubernetes (K8s)
• Own performance, load, and stress testing
• Embed automation into CI/CD pipelines alongside dev and DevOps teams

• Help define QA best practices and mentor engineers as we grow

   

What you bring:

• 3+ years in API/backend automation testing
• Strong hands-on with Postman/Newman, REST Assured, Playwright, or similar
• Performance testing chops (JMeter, Locust, k6)
• Experience with Kubernetes for test environment orchestration
• Cybersecurity product testing experience is required 
• Go programming experience - big plus
• Cloud (AWS/GCP/Azure) and GitOps familiarity is a bonus

What we offer:

• Competitive compensation based on your skills and experience
• Paid vacation, sick leave, and additional holidays
• Exciting projects with the newest technologies
• Accounting as a service

• Long-term employment

   

Our recruitment process:

•  Screening call (30 min)
• Interview with VP of R&D (45 min)
• Technical interview with QA TL (60 min)
• Reference checks

Timeline: We'll get back to you within one week of receiving your resume.

We're looking for a Middle/Middle Strong Node.js developer with 3+ years of experience to join our team and contribute to an innovative project focused on transforming HR operations with AI. This is a fantastic opportunity to work on a platform that integrates with existing HR systems, handles a significant volume of employee requests, and automates various HR tasks, ensuring 24/7 personalized support across multiple communication channels.

Must have:

• Strong experience with TypeScript, Node.js, and PostgreSQL.
• Proven experience with AI/LLM integration.
• Solid understanding of backend architecture and API design principles.
• Product mindset with the ability to think beyond implementation details.
• Proactiveness and ownership mentality.
• Strong communication skills and ability to collaborate with cross-functional teams.
• Ability to work effectively in ambiguous environments and help define clear requirements.
• Experience working in startup environments.

• Upper - Intermediate or Advanced English communication skills.

   

Will be a plus:

• Experience with Microservices architecture;

   

Responsibilities:

• Develop and maintain high-quality backend services using Node.js and TypeScript.
• Design and implement robust integrations with AI/LLM models to enhance platform capabilities.
• Work with PostgreSQL to manage and optimize application data.
• Collaborate with cross-functional teams to deliver seamless and efficient HR solutions.
• Ensure the scalability, performance, and security of the platform.

• Participate in code reviews, contribute to architectural discussions, and drive continuous improvement.

   

 About the Project:

This intelligent HR automation ecosystem is designed to modernize workforce management by offloading high-volume administrative tasks. By syncing with internal directories and knowledge hubs, the system autonomously resolves nearly three-quarters of routine employee inquiries regarding compensation, corporate policies, and internal workflows. Beyond simple Q&A, it orchestrates end-to-end processes—from record updates to document generation—across global communication channels like Teams and Slack. The result is a 24/7 support layer that provides data-driven organizational insights while escalating high-priority cases to human experts.

Interview Stages

• 1-st stage - call with Recruiter
• 2-nd stage - Technical interview with our Senior developer
• 3-rd stage - Client interview

We are looking for a Software Engineer with strong backend expertise to strengthen our engineering team at a successful web project from the USA.

As a Software Engineer, you will contribute to building and enhancing the platform within a collaborative engineering team. While the current stack includes Angular and Node.js, the strategic goal is to expand backend capabilities and strengthen collaboration with engineering and ETL teams.

Depending on project priorities, you may initially focus on Angular/Node.js features, while gradually contributing more to backend services and integrations, where .NET/C# experience will be valuable. You should be comfortable working across the stack when needed.

Our ideal candidate:

• Is comfortable working across both frontend and backend when needed
• Brings strong backend engineering experience
• Can help increase the technical seniority of the team
• Is proactive and capable of contributing to technical direction and system design
• Demonstrates strong ownership and problem-solving skills
• Is collaborative, comfortable working in ambiguous environments, able to mentor others, and raise the overall technical maturity of the team

Requirements

Must have

• 5+ years of professional software development experience.
• Strong experience in backend development.
• Hands-on experience with Node.js and Angular.
• Previous or current experience with .NET / C#.
• Experience designing and implementing backend services or APIs.
• Strong problem-solving skills and the ability to work with complex systems.
• Upper-Intermediate English (B2+) or higher.
• Proactive mindset and ability to take ownership of technical solutions.

Will be a plus

• Experience with AWS or other cloud platforms
• Experience working with healthcare systems or regulated environments
• Experience with SQL and/or NoSQL databases (e.g., MySQL, MongoDB)
• Mentorship or technical leadership experience

Responsibilities

• Develop and maintain features using Angular and Node.js (Express).
• Contribute to backend services and system architecture where applicable.
• Strengthen the team's backend expertise and engineering maturity.
• Collaborate with engineering and ETL teams on integrations and data-related workflows.
• Participate in architecture discussions, code reviews, and technical decision-making.
• Identify opportunities to improve system scalability, reliability, and maintainability.
• Share knowledge and support other engineers when needed.

About Project

Our client is a Software company from the USA.

Product

This platform is dedicated to ensuring payment integrity for health payers. Our project focuses on creating and implementing cutting-edge technology solutions to tackle current and future challenges in the healthcare industry for health plans. By bringing together payers, providers, and business partners on one technology platform, we aim to facilitate transparent communication and support collaboration.

Stage

Active phase of development

Project team

Existing team on the client side. We work with the US team (Eastern and Central time zones) — around 10 people. Our team is 17 people (9 MEAN stack developers, 8 QA, 1 PM)

Project Technologies

MEAN (MongoDB, Express. js, Angular and Node.js)

Work schedule

Full-time working day (flexible hours), possibility to work remotely or visit our offices in Lviv, Kyiv or Krakow.

Interview Stages

1-st stage — Call with Recruiter (30 minutes)
2-nd stage — Interview with our Senior Engineer (1 hour)
3-rd stage — Client interview

TechMagic is launching a product-focused division to build and scale B2B SaaS applications alongside our core software development services business.

We are looking for our first Product Marketing Manager to take full ownership of product-led revenue growth (MRR) across our growing portfolio of SaaS products, including:

• Invoice Generator
• MagicCV
• MagicScreen

This is a foundational role. You will define how product marketing works at TechMagic - from positioning and go-to-market to experimentation, analytics, and growth loops. The right person will have the opportunity to build and lead the product marketing direction as the portfolio and team expand.

What You’ll Own

You will be responsible for turning our products into clear, differentiated, revenue-generating SaaS businesses.

Product Marketing & Positioning

• Define product positioning, messaging, and value propositions for each product and target segment
• Translate product capabilities into clear customer benefits and use cases
• Own ICP definition, segmentation, and JTBD frameworks
• Develop and maintain core PMM assets: messaging frameworks, landing page narratives, onboarding flows, and sales enablement materials

Go-To-Market & Growth

• Build and execute go-to-market strategies for new launches, features, and pricing experiments
• Partner with SEO, PPC, and SDR teams to drive trial, activation, conversion, and expansion
• Own activation, conversion, retention, and monetization hypotheses
• Collaborate with Product and Engineering to influence the roadmap based on market and revenue insights
  
  Revenue & Data Ownership
• Be accountable for MRR growth metrics, including conversion rates, churn, and LTV
• Define and track north-star and supporting metrics for each product
• Use data to prioritize experiments and double down on what works
• Turn analytics into insights and insights into action

Experimentation & Optimization

Run fast, structured experiments across:

• Pricing & packaging
• Onboarding & activation
• Messaging & positioning
  Channels & funnels

Build repeatable experimentation frameworks and learning loops

Balance speed with rigor—test often, learn fast, scale what wins

AI-First & Modern Marketing Execution

• Leverage AI marketing tools for research, messaging, experimentation, analytics, and automation
• Continuously improve speed, efficiency, and output quality using AI-powered workflows
• Stay ahead of modern PMM and growth tooling trends

Why This Role Is Unique

• You will be the first Product Marketing hire for TechMagic’s product division
• You will shape the entire product marketing function from zero
• Direct influence on product direction, pricing, and revenue growth
• Clear path to becoming Head of Product Marketing as the portfolio scales
• Work closely with C-level leadership and a strong in-house growth team

Requirements

• 3+ years of Product Marketing experience for digital products (SaaS, B2B/B2C apps, or software platforms)
• Proven ability to own product positioning, messaging, and go-to-market strategy end-to-end
• Strong revenue and funnel mindset, with experience impacting activation, conversion, retention, and MRR
• Hands-on experience working closely with Product, Engineering, Growth Marketing, and Sales/SDR teams
• Strong analytical and data-driven mindset, able to translate insights into growth actions and experiments
• Experience running fast, structured experiments across messaging, onboarding, pricing, and channels
• High level of autonomy and ownership - comfortable being the first PMM and building the function from scratch
• AI-first marketer who actively uses AI tools to improve speed, quality, and efficiency of work
• Strategic thinker who is also highly execution-oriented

Foundational Product Marketing Skills

• Market, competitor, and customer research (qualitative & quantitative)
• ICP definition, segmentation, personas, and Jobs-To-Be-Done frameworks
• Messaging frameworks, value propositions, and narrative development
• Funnel and lifecycle thinking (acquisition → activation → revenue → retention)
• Cross-functional alignment and influence without direct authority
• Strong written communication for landing pages, onboarding, lifecycle messaging, and enablement
• Ability to simplify complex products into clear, compelling customer stories

Tools & Platforms Experience

• Analytics & Product: GA4, Mixpanel, Amplitude, Hotjar, Looker, or similar
• Paid Acquisition: Google Ads, Meta Ads, LinkedIn Ads (hands-on or in close collaboration)
• Marketing Automation & Email: HubSpot, Customer.io, Braze, Intercom, Mailchimp, or similar
• Experimentation & CRO: A/B testing tools (VWO, Optimizely, Google Optimize, etc.)
• Design & Collaboration: Figma, Canva, Miro, Notion
  AI & Productivity: ChatGPT, Claude, Jasper, Midjourney/DALL·E, or other AI-powered marketing tools

Nice to Have

• Experience in B2B SaaS, especially product-led growth (PLG) models
• Experience with freemium, trial-based, or self-serve SaaS products
• Experience supporting multiple products or a product portfolio

Interview Stages

1. Pre-screening with the Recruiter
2. Test task
3. Interview with the Head of Marketing and the Recruiter
4. Final interview with CEO

TemaBit Fozzy Group is an IT company that develops unique solutions for more than 40 businesses of Fozzy Group. We specialize in web and mobile development, as well as software for managing business processes and infrastructure projects.

In addition, we experiment and care about the team and the Guest, we value cooperation, we preach honesty and openness.

You will play a key role in the development and evolution of a large-scale enterprise platform focused on backend services, business process automation, and integrations between multiple internal and external systems.

The project combines existing enterprise applications with modern backend services developed using .NET 6–10. While the system heavily relies on Microsoft SQL Server, the strategic direction is to gradually move business logic from database-level implementations into maintainable and scalable C# backend services.

This role is primarily focused on backend development using modern .NET technologies, with SQL Server serving as an important part of the overall architecture.

Key Responsibilities:

• Design, develop, and maintain backend services and APIs using modern .NET technologies (.NET 6+)
• Implement and maintain business logic in C#
• Collaborate with engineering teams on system design, integrations, and modernization initiatives
• Work with Microsoft SQL Server and existing database-level business logic
• Analyze existing SQL-based processes and participate in migrating business logic into backend services
• Develop and maintain integrations using REST APIs and other enterprise integration patterns
• Participate in architecture discussions and implementation of microservice-based solutions
• Follow engineering best practices including code reviews, testing, and CI/CD processes
• Support junior and middle developers through technical guidance and collaboration

• Leverage AI-powered development tools (e.g. GitHub Copilot, ChatGPT, Amazon Q) to improve productivity and development workflows

   

Requirements:

• 5+ years of commercial .NET development experience
• Strong experience with modern .NET (.NET 6/7/8+)
• Strong understanding of backend application architecture and API development
• Solid experience with C#
• Good practical knowledge of Microsoft SQL Server and Transact-SQL
• Experience working with existing SQL-based business logic and integrations
• Experience with EF Core and/or Dapper
• Experience with REST APIs and backend integrations
• Experience with unit/integration testing
• Experience using AI-powered development tools to enhance productivity, code quality, and testing efficiency
• Experience with Docker
• Understanding of software architecture and modernization approaches
• Understanding of Agile/Scrum methodologies and experience working in an Agile environment
• Intermediate/B1 English level

• Strong communication and problem-solving skills

   

Nice-to-have Skills & Experience:

• Experience with AWS Cloud Native development and familiarity with AWS services (e.g. Lambda, API Gateway, S3, Fargate)
• Experience with .NET Framework 4.8
• Experience with Windows Forms applications
• Experience with WCF services
• Experience with DevExpress UI components
• Experience with GitLab CI/CD pipelines

We propose:

• The ability to generate and influence decision-making
• Competitive salary discussed based on the results of the interview with the successful candidate
• Medical insurance
• Discounts for network employees
• Remote work mode, and if you want to work in the office — there is a cozy co-working space in the Silver Breeze business center in Kyiv

TemaBit Fozzy Group is an IT company that develops unique solutions for more than 40 businesses of Fozzy Group. We specialize in web and mobile development, as well as software for managing business processes and infrastructure projects.

In addition, we experiment and care about the team and the Guest, we value cooperation, we preach honesty and openness.

You will play a major role in our engineering team by designing, developing, and maintaining high-quality backend systems and applications. Your expertise in .NET and Cloud Native development, coupled with a solid understanding of backend architectures, will drive the creation of scalable, efficient, and secure software solutions.

In this role, you will also leverage modern AI-powered tools and practices to improve productivity, code quality, and decision-making across the software development lifecycle.

Key Responsibilities:

• Develop backend systems using .NET (with focus on Cloud Native development), ensuring code quality, performance, and scalability
• Collaborate within cross-functional engineering team to design and develop high-quality web applications
• Drive engineering excellence by adopting and following engineering best practices in your team
• Participate in the entire software development lifecycle, from concept to deployment
• Contribute to the architecture and implementation of scalable and efficient solutions
• Support junior and middle developers, guiding them through code reviews, and fostering a culture of continuous learning and improvement
• Leverage AI-driven tools (e.g., GitHub Copilot, Amazon Q, ChatGPT) to assist in coding, documentation, testing, troubleshooting, and optimizing development workflows
• Promote responsible and ethical AI usage, ensuring compliance with company policies and data privacy standards

Requirements:

• 4+ years of .NET development
• Proficiency in .NET 8+
• Experience using AI-powered development tools to enhance productivity, code quality, and testing efficiency
• Experience of AWS Cloud Native development, familiarity with AWS services (i.e. Lambda, API Gateway, S3, Fargate)
• Track record of implementing microservices based back-ends
• Knowledge EF Core / RDS Postgres
• Knowledge of messaging (preferable Kafka) 
• Knowledge of DDD, Event Sourcing, CQRS
• Understanding of relational and non-relational databases
• Experience with Unit/Integration testing
• Experience with containerization technologies (Docker)
• Understanding of Infrastructure as Code principle (experience with CDK will be a plus)
• Understanding of Agile/Scrum methodologies and experience working in an Agile environment
• Intermediate/B1 English Level, ability to read & write tech documentation
• Strong communication skills

Nice-to-have Skills & Experience:

• Experience building Gitlab CI/CD pipelines
• Experience with DynamoDB
• TypeScript

We propose:

• The ability to generate and influence decision-making
• Competitive salary discussed based on the results of the interview with the successful candidate
• Medical insurance
• Discounts for network employees
• Remote work mode, and if you want to work in the office — there is a cozy co-working space in the Silver Breeze business center in Kyiv