Jobs

We are looking for a C++ Developer to join our agile, cross-functional team. In this role, you will develop software for wireless satellite communication.

You have the opportunity to be part of a community of over 200 C++ Developers at Sii. Our specialists have the chance to work with the latest technology stack (including C++ 20) for the IoT, automotive, and medical industries.

Sounds interesting? Apply!

Your tasks:

• Developing new functionalities
• Analysing bugs and implementing fixes
• Ensuring integrity and communication between different environments
• Defining architecture and requirements specifications
• Designing software and interfaces
• Participating in software verification activities (inspection and static code analysis)
• Preparing unit, design, and integration tests
• Creating test documentation
• Developing real-time & high-performance systems

• Implementing Networks & Protocol

   

Requirements:

• Minimum 3 years of experience in C++ programming
• Telecoms background
• Hands-on K3GPP / 5G experience
• Familiarity with gNodeB is an advantage
• Previous work in the Agile methodology
• Teamwork and communication skills
• Good knowledge of object-oriented design
• Good verbal and written English and Ukrainian skills

• Tax residence in Ukraine is required

   

About the Company
Client is a Toronto-based technology company operating in the capital markets domain. The team builds and maintains high-performance trading infrastructure supporting large-scale financial operations. The company is now expanding its engineering team to strengthen and enhance its low-latency trading platform.

About the Role
We are looking for an experienced Senior C++ Developer to join the engineering team. The successful candidate will work on improving and supporting an existing low-latency trading platform, focusing on performance optimization, scalability, and reliability.

This role involves significant non-functional work, including redesigning and enhancing core components to meet demanding latency and throughput requirements.

Responsibilities

• Support and enhance an existing low-latency trading system
• Design, develop, and optimize high-performance C++ components
• Collaborate with cross-functional teams to identify and implement system improvements
• Participate in performance profiling, debugging, and fine-tuning
• Ensure software reliability, maintainability, and efficiency
• Follow modern C++ development best practices

Requirements

• Strong experience in C++17 (or later)
• Solid understanding of low-latency design patterns and multi-threaded systems
• Hands-on experience with Boost and Linux (RHEL) environments
• Proven background in performance optimization and system-level programming
• Excellent problem-solving skills and attention to detail
• Ability to work independently and as part of a distributed team

Nice to Have

• Experience in trading systems, market data processing, or exchange connectivity
• Knowledge of FIX protocol, network programming, or real-time data systems
• Familiarity with high-frequency trading or quantitative finance

Being a part of 3asoft means having:
- High level of flexibility and freedom
- p2p relationship with worldwide customers
- Competitive compensation paid in USD
- Fully remote working

Twist Robotics is a defense company that develops unmanned aerial vehicles (FPV, multirotor, and fixed-wing types) and related systems. Among our public products are the UAV mission simulator “Obriy” and the “Saker Scout” drone, which has been successfully operating on the front lines for over two years.

We are looking for a C++/Python developer (Drone simulation & Networking) to help us enhance and expand our UAV simulation ecosystem. The role involves creating and adapting simulation environments for different drone models, developing network and server components, and integrating control protocols.

Key responsibilities:

• creating, configuring, and adapting simulation environments for specific UAV models from scratch;
• developing required network and server components for interaction with the simulator;
• integrating and testing control protocols;
• preparing technical documentation and contributing to training materials for external teams;
• close collaboration with the core simulator development team.

Requirements:

• strong experience with C++ and Python;
• understanding of network protocols (TCP/UDP, HTTP, WebSocket, etc.);
• experience integrating SDKs/APIs into software products;
• solid understanding of server-side principles and embedded systems.

Will be an advantage:

• knowledge of UAV control protocols (MAVLink, CRSF, ELRS);
• basic experience with GStreamer;
• background in SITL, networking, routing, or low-latency streaming;
• experience with simulation systems or training environments;
• understanding of UAV architecture and autopilot systems;
• experience developing under Windows.

We offer:

• the opportunity to apply your skills and experience to strengthen Ukraine’s defense capabilities;
• exciting work at the forefront of technology development, where independence and initiative are valued;
• comfortable working conditions and a competitive salary;
• relocation support to Lviv (if needed);
• paid vacation, sick leave, and other social benefits in accordance with labor law;
• reservation from mobilization.

Work onsite 5 days per week in Krakow.

Job Description:

• Strong knokwledge C/C++14 (or above)
• From 2 years of C++ development experience;
• Experience with Unit Testing
• Experience with Python;
• Experience with CMake;
• Basic experience with Linux
• Understanding SDLC
• Fluetn upper-intermediate English
• Good communication skills
• Willingness to learn
• Team player
• Takes responsibility and gets things done

Would be a plus:

• Experience with: Gerrit, Zuul CI tool, Jenkins, Artifactory, Google Test framework, GCC
• QNX
• Static Code analyzes (Polyspace, QAC, etc)
  Some experience in automotive domain is ok but not eclusively

Job Responsibilities

As per the role of Software Engineer successful candidate will be involved into development of sensor fusion algorithms for an innovative control platform.

• Development of embedded automotive systems for EU OEM.
• Test case creation and test coverage improvement
• Collaboration with customer and teammates
• Study and participate to full cycle development of Automotive SW

Department/Project Description

The project aim is to optimize and extend with new features for next gen vehicle.
Our clients are and OEMs from Europe and development is targeted to Automotive Solution which will be deployed in newest European cars. The project is considered as technical excellence and we are paying huge attention to technical challenge motivation of our team members.

Aristeem  is  looking for a highly skilled Senior C++ Developer experienced in Windows graphics capture and real-time video processing. You will design, optimize, and maintain high-performance capture modules for screen and video pipelines, working closely with GPU APIs, hardware encoders, and complex multi-threaded systems.

Tech Stack

C++17/20, WinAPI, COM, DirectX 11/12, DXGI, WGC, D3D11on12, NVENC, AMF, QSV, Media Foundation, FFmpeg, ETW, PIX, RenderDoc, CMake, MSVC.

Responsibilities

• Develop and optimize image capture modules using DXGI Desktop Duplication API, Windows Graphics Capture, and fallback methods via GDI/DWM.
• Work with DirectX 11/12, shared textures, GPU–CPU synchronization, and zero-copy frame transfers.
• Implement cursor capture, HDR→SDR conversion, scaling, and color correction.
• Integrate with hardware encoders (NVENC, AMF, QSV) and media pipelines (Media Foundation, FFmpeg).
• Support multi-monitor setups, HiDPI, and virtual displays (IDD).
• Ensure optimal performance (≥120 FPS at 4K), resolving bottlenecks and thread race conditions.
• Develop internal SDK interfaces and logging tools (ETW/WPA).
• Participate in architectural discussions and code reviews.

Requirements

• 6+ years of professional experience in C++17/20 development.
• Deep understanding of WinAPI and COM.
• Proven experience with DirectX 11/12, DXGI, IDXGIOutputDuplication, and Windows Graphics Capture (WGC).
• Strong knowledge of multithreading, atomic operations, and GPU/CPU synchronization.
• Experience with Media Foundation, FFmpeg, or hardware video encoders (NVENC/AMF/QSV).
• Proficiency in profiling and debugging tools (ETW, PIX, RenderDoc, WPA).
• Understanding of WDDM, DWM, and Flip Model.
• Ability to write clean, efficient, and leak-free multi-threaded code.

Nice to Have

• Experience developing virtual displays or Indirect Display Drivers (IDD).
• Familiarity with zero-copy frame sharing (D3D shared handles, keyed mutex).
• SIMD optimization (SSE/AVX) for color space and format conversions (e.g., RGBA↔NV12, I420).
• Knowledge of OBS / obs-studio architecture or plugin development.
• Experience with streaming systems (WebRTC, RTSP, RTMP, HLS).
• Understanding of H.264/H.265 codecs, bitrates, and latency presets.

Personal Qualities

• Strong systems thinking and attention to low-level details.
• Commitment to quality, performance, and stability.
• Ability to justify technical decisions and collaborate effectively in a te

We offer

• Competitive Salary
• 15 paid vacation days and 7 sick leaves
• Rezervation if needed
• Blackouts equipped office (heating and electricity)

Your Profile

• Bachelor’s degree in computer science, electronics and communications or relevant field, with strong software interest.
• Minimum of 2 years’ experience in Nokia Mediation or any other mediation product/system.
• Senior expert in Nokia Mediation, Java, C and Perl.
• Working knowledge of Nokia Mediation (or) any other mediation product/system with ability to independently work, write code, test and deliver good quality workflows/nodes/streams and functional tests.
• Working experience on Nokia Mediation product fComptel’s EventLink 7.x and above or Nokia Data Refinery 19.x and above is also a plus.
• Good background and understanding of telecom domain concepts.
• Good debugging, analytical and problem-solving skills.
• Good communications skills (written and verbal).
• Good exposure and working experience in Oracle SQL, PL/SQL, PostgreSQL, Unix.
• Good exposure and Hands on experience on Nokia Mediation (or) any other mediation product/system installation, migration and troubleshooting is also a plus.
• Good exposure and knowledge in C, C++, Perl, Java and XML.
• Working experience in Business Logic Tool (BLT), Times Ten and other product specific features (*Nokia Mediation specific) is also a plus.
• Scripting knowledge in Shell, Bash, Python and Ansible.
• Knowledge on Kubernetes and docker container is a plus.
• Jenkins knowledge.
• Jenkins pipelines creation.

Project Description

The client is a product international company that provides a defense platform that enables development and security teams to protect critical workloads against emerging threats and undiscovered vulnerabilities with a lightweight agent that protects the organization's public, private and hybrid cloud deployments on-premises data centers managed.

Job Description

• Minimum of 3 years of professional experience in MacOS development.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
• Expert proficiency in C++ 11/14/17.
• In-depth knowledge of MacOS internals, system frameworks, and libraries.
• Proven experience in system-level programming, debugging, and performance tuning.
• Familiarity with Xcode, LLDB, and other MacOS development tools.
• Strong understanding of macOS security mechanisms and best practices.
• Excellent analytical and problem-solving abilities.
• Strong communication skills, both written and verbal.
• Ability to work effectively in a remote and collaborative environment.

 
Nice to have:

• Experience with Endpoint Security framework and/or Network Extension framework.
• Experience with System Integrity Protection and System Extensions development.
• Experience with Swift, Objective-C and application development for macOS.
• Understanding of networking protocols and system-level APIs.
• Previous experience in leading projects or teams in a remote work environment.
• Experience in Cyber Security domain.
• Familiarity with XPC, gRPC and protobuf.

Job Responsibilities

We are seeking a skilled and motivated Cross-Platform C++ Software Engineer to join our engineering team focused on building high-quality, maintainable, and scalable applications. You will work on a complex software stack targeting macOS platforms, using modern C++ and industry-standard tooling. This role requires a strong understanding of build systems and crash analysis.

• Be part of the design, development, and optimization of MacOS internals and system components.
• Architect solutions for complex system-level challenges, ensuring robustness and scalability.
• Collaborate with cross-functional teams to deliver high-quality software solutions.
• Mentor junior developers, providing guidance on best practices in system-level programming.
• Conduct code reviews and ensure adherence to industry standards and security protocols.
• Stay current with the latest MacOS developments and contribute to the technical direction of projects.

Summary:
Senior C++ engineer (6+ years) experienced in maintaining and refactoring legacy (pre-C++11) code bases for logistics and shipping platforms. Strong in debugging, profiling, and ensuring system stability under SLA constraints. Comfortable with US time overlap and technical communication in English (B2+).
 

Technical Skills:

• Languages: C++ 98/03/11, STL, Boost
• Legacy & OS: Win32, MFC, COM, POSIX IPC
• Networking: TCP/UDP, HTTP(S), OpenSSL/SChannel, socket programming
• Data formats: XML, JSON, custom binary formats
• Integration: EDI (X12/EDIFACT), FedEx/UPS/DHL/USPS APIs, ZPL/EPL label generation
• DB & Tools: MySQL, PostgreSQL, ODBC, Redis, ELK, syslog, Prometheus
• Debug & Perf: WinDbg, gdb, Valgrind, AddressSanitizer, Perf, Process Monitor
• Toolchains: Visual Studio 2008–2019, CMake, GCC 4.x–12.x
• Other: Docker (CI), basic Kubernetes, PCI-DSS / SSL cert management
   

Key Responsibilities:

• Maintain and evolve legacy modules (pre-C++11) for parcel tracking and rate calculation.
• Investigate production incidents, prepare RCA and safe hotfixes under SLA.
• Perform safe refactorings using seams and characterization tests.
• Profile and optimize memory usage and multithreading performance.
• Integrate external carrier APIs (FedEx, UPS, DHL) and document interfaces.
• Communicate daily with US team (ET timezone overlap 4–6 hours).
   

Bonus Experience:

• Migration from VS2008/2010 to modern toolchains.
• ZPL label templates and barcode generation (Code128/QR).
• Security / Compliance (PII, PCI-DSS).
   

Availability:
Part-time (15–20 hours per week), with 4–6 hour daily overlap with US (ET/PT).

Requirements

• 3+ years of experience in Computer Vision / Image Processing, primarily with C++
• Proven experience developing production-grade image processing
• Solid mathematical foundation in image analysis and color science
• Detail-oriented, creative, and passionate about pushing visual quality
• English: intermediate or higher (technical reading and team communication)

What You’ll Do

• Research and develop image post-processing algorithms: enhancement, artistic effects, filters, relighting, and tone mapping
• Combine traditional CV algorithms with AI-based
• Integrate and optimize AI inference pipelines (ONNX Runtime, OpenVINO, TensorRT) within C++ production code
• Optimize image and AI processing for GPU, SIMD, and multi-threaded environments
• Collaborate closely with AI Research, and Product Design teams to bring new visual technologies into Luminar Neo

Tech Stack

• C++17/20, STL, multithreading, GPU (CUDA / OpenCL / Metal / DirectML)
• OpenCV or similar performance-oriented libraries
• ONNX Runtime / TorchScript / TensorRT / OpenVINO for inference acceleration
• Strong understanding of image processing fundamentals — color spaces, filtering, denoising, edge detection, matting, tone mapping
• Bonus: knowledge of Python + PyTorch/TensorFlow for prototyping or model integration. Experience with segmentation / depth / matting / relighting / enhancement models

What we offer:

For personal growth:

• A chance to work with a strong team and a unique opportunity to make substantial contributions to our award-winning photo editing tools;
• An educational allowance to ensure that your skills stay sharp;
• English and German classes to strengthen your capabilities and widen your knowledge.

For comfort:

• A great environment where you’ll work with true professionals and amazing colleagues whom you’ll quickly call friends;
• The choice of working remotely or in our cozy office space located in Kyiv’s Podil, equipped with everything you might need for productive and comfortable work.
• The office is prepared for productive work in any conditions, including blackouts, since there are Starlinks, uninterruptible network connections, and two internet providers.
• There are also additional co-working spaces for the team in Lisbon and Warsaw.

For health:

• Medical insurance (for UA-based employees);
• Twenty-one days of paid sick leave per year;
• Paid psychological support (6 psychotherapy specialists to choose from)

For leisure:

• Twenty-one days of paid vacation per year;
• Fun times at our frequent team-building activities.

We are looking for a Software Engineer to help us create cutting-edge medical software — Mimics Core, an industry-standard 3D medical image segmentation tool. Your work will directly contribute to improving medical outcomes around the world.

This role is for someone who is passionate about coding, loves solving complex problems, and is ready to work in a high-impact environment. You’ll design, write, and maintain efficient, reusable, and reliable C++ code while ensuring optimal quality and performance.
 

What You’ll Do

• Develop and maintain code for Mimics using C++.
• Fix bugs, improve performance, and suggest solutions.
• Refactor and organise code to meet high-quality (medical) standards.
• Build and support cross-product platforms for seamless integration.
• Review code and offer technical advice to your team.
• Create design specifications
   

What You’ll Need

— A degree in Engineering, Math, Physics, or a related field.
— Proven experience in software engineering, especially in C++ development.
— At least 3 years of hands-on experience in C++ Development.
— Strong skills in code reviews.
— English proficiency (minimum B2) for working in a multinational team.
 

Preferred Skills:

• Experience in building cross-product platforms and cloud integration for desktop applications.
   

Why Join Us:

Mimics isn’t just software — it’s a tool that helps doctors and engineers analyse medical images, design implants, and improve patient outcomes. By working on Mimics, you’re not just writing code; you’re contributing to making healthcare smarter, faster, and more accessible.
 

What We Offer

• Impactful work: Your code directly contributes to saving lives and improving health worldwide.
• High engineering standards: Be part of a team that values clean, efficient, and high-quality code, with a strong focus on best practices and innovation.
• Technical mentorship and support: Learn and grow with the support of experienced technical professionals dedicated to helping you succeed.
• Flexibility and ownership: Flexible hours and a culture that respects and promotes personal ideas and contributions.

Join us to make healthcare smarter and transform medical imaging with Mimics.

Apply now to be part of something meaningful!

Position Overview:
We are seeking an experienced Software Engineer specializing in QGroundControl development. The ideal candidate will have a strong background in C++ and Qt Framework, and experience integrating and maintaining UAV or defense-related control systems.
 

Responsibilities:

• Develop, customize, and maintain QGroundControl-based applications
• Implement new features and improve system reliability and performance
• Collaborate with hardware and embedded teams to ensure system compatibility
• Participate in testing, debugging, and integration processes
   

Requirements:

• Proven experience with QGroundControl
• Strong proficiency in C++ and Qt Framework
• Experience in defense, UAV, or embedded systems is a strong advantage
• Ability to work independently ( freelance)
• Strong problem-solving and communication skills
• English - professional working proficiency
  
   

Project Description

The client is a product international company that provides a defense platform that enables development and security teams to protect critical workloads against emerging threats and undiscovered vulnerabilities with a lightweight agent that protects the organization's public, private and hybrid cloud deployments on-premises data centers managed.

Job Description

• Working on at least one of Mac/Linux/Windows: 4+ years of experience
• At least 4 years of experience in C++.
• Passion for problem-solving and debugging complex issues
• Ability to understand other people's code quickly and effectively
• Experience in Software Design and Object Oriented programming
• Experience with complex SW multi-threaded environments.
• High attention to details
• Good interpersonal and communication skills

Job Responsibilities

We are looking for an experienced Software Engineer for our Anti-Malware engine team. The team is responsible for advanced technologies across our supported platforms - Mac, Linux, Windows.
We supply effective business logic and enhancements for the engines in our system. In this position you will:

• Write high-performance and critical-path code for sensitive situations in production under Linux, Mac and Windows
• Write high-quality code considering as many edge cases as possible
• Investigate complex multiple author code in production & research to understand the full extent and impact of issues found
• Collaborate with various teams and stakeholders across the organization (R&D, Support, Operations, product, etc.)
• Participate in customer and support calls as the technical authority.
• Get familiar with real customer challenges and gain a deep understanding of the balance between UX and security value

Description

The client is a product international company that provides a defense platform that enables development and security teams to protect critical workloads against emerging threats and undiscovered vulnerabilities with a lightweight agent that protects the organization's public, private and hybrid cloud deployments on-premises data centers managed. In addition, it is an advanced endpoint detection and response platform, which gathers as much information as possible to detect and analyze complex threats while being as non-intrusive as possible, minimizing the impact on the network and the endpoint.

Requirements

• Working on at least one of Mac/Linux/Windows: 4+ years of experience
• At least 4 years of experience in C++.
• Passion for problem-solving and debugging complex issues
• Ability to understand other people’s code quickly and effectively
• Experience in Software Design and Object Oriented programming
• Experience with complex SW multi-threaded environments.
• High attention to details
• Good interpersonal and communication skills

Job responsibilities

We are looking for an experienced Software Engineer for our Anti-Malware engine team. The team is responsible for advanced technologies across our supported platforms – Mac, Linux, Windows.
We supply effective business logic and enhancements for the engines in our system.In this position you will:

• Write high-performance and critical-path code for sensitive situations in production under Linux, Mac and Windows
• Write high-quality code considering as many edge cases as possible
• Investigate complex multiple author code in production & research to understand the full extent and impact of issues found
• Collaborate with various teams and stakeholders across the organization (R&D, Support, Operations, product, etc.)
• Participate in customer and support calls as the technical authority.
• Get familiar with real customer challenges and gain a deep understanding of the balance between UX and security value

The client is a product international company that provides a defence platform that enables development and security teams to protect critical workloads against emerging threats and undiscovered vulnerabilities with a lightweight agent that protects the organisation’s public, private and hybrid cloud deployments on-premises data centres managed. In addition, it is an advanced endpoint detection and response platform, which gathers as much information as possible to detect and analyse complex threats while being as non-intrusive as possible, minimising the impact on the network and the endpoint.

Requirements:

• Working on at least one of Mac/Linux/Windows: 4+ years of experience
• At least 4 years of experience in C++.
• Passion for problem-solving and debugging complex issues
• Ability to understand other people’s code quickly and effectively
• Experience in Software Design and Object-Oriented programming
• Experience with complex SW multi-threaded environments.
• High attention to details
• Good interpersonal and communication skills

Job responsibilities:

We are looking for an experienced Software Engineer for our Anti-Malware engine team. The team is responsible for advanced technologies across our supported platforms – Mac, Linux, Windows.
We supply effective business logic and enhancements for the engines in our system. In this position you will:

• Write high-performance and critical-path code for sensitive situations in production under Linux, Mac and Windows
• Write high-quality code considering as many edge cases as possible
• Investigate complex multiple author code in production & research to understand the full extent and impact of issues found
• Collaborate with various teams and stakeholders across the organization (R&D, Support, Operations, product, etc.)
• Participate in customer and support calls as the technical authority.
• Get familiar with real customer challenges and gain a deep understanding of the balance between UX and security value

Audio Identification Platform (Remote, B2B)

We’re hiring on behalf of a product team building large-scale audio identification technology. You’ll help modernize and extend the core engine that powers fast, reliable music recognition.

What you’ll work on

• Evolve the C++ core (heavy use of multithreading) and backend components behind the audio-matching pipeline.
• Partner with the technical lead to plan and deliver architectural updates (including new API integrations).
• Pick up items across development and DevOps to keep delivery smooth and the platform scalable.
• Collaborate across functions to reduce hand-offs and ship end-to-end.

What makes you a great fit

• 10+ years in software engineering with deep C++ (concurrency) and backend experience.
• Comfortable in Linux and fluent with Python, SQL, Bash, Jenkins.
• Understanding of CI/CD and cloud environments (any major provider) is a plus.
• You can drive work independently and also thrive in a fast, collaborative setup.

Why this team

• Work on a mission-critical, tech-first audio intelligence product.
• Real influence on architecture and long-term platform direction.
• Experienced peers who value ownership and pragmatism.
• Flexible setup with shared responsibility across application and infrastructure.
• Remote, B2B contract (no paid vacation or sick leave included).

Interested? Send your CV/LinkedIn and a short note about relevant projects.