Jobs at DefTech companies

Role overview

Our client is a fast-moving deep-tech startup (founded in August 2024) building next-generation AI-powered SAR sensing systems for exploration, reconnaissance, and ground-penetrating applications. They develop production-grade airborne SAR systems that push the limits of what radar can detect—even through soil and complex materials. You will join a small, elite technical team where your decisions have immediate real-world impact in both defense and humanitarian projects.

Role OverviewWe are looking for a SAR System Engineer with end-to-end experience building airborne SAR systems (UAV, aircraft, or satellite). This is a strictly "hands-on" role, not a theoretical one. You will design, build, integrate, test, and optimize real SAR payloads and processing pipelines, transforming raw radar returns into high-quality imagery ready for AI-based analysis.

Key Responsibilities

• System Design & Testing: Design, assemble, and test airborne SAR systems, primarily UAV-based ground-penetrating SAR (GP-SAR).
• Pipeline Ownership: Own the full SAR processing pipeline—from raw radar (Level 0) data to final SAR images.
• Algorithm Optimization: Develop and optimize SAR imaging algorithms, including Back-projection, Range-Doppler, and Omega-K.
• SAR Corrections: Implement motion compensation, time-zero alignment, calibration, geometric spreading correction, and background subtraction.
• Production Frameworks: Build production-ready, scalable processing frameworks for real-time or near-real-time operation.
• Collaboration: Work closely with RF, hardware, and AI engineers to deliver clean SAR data for automated detection and classification tasks.
• Full Lifecycle Support: Support the entire journey from simulation and integration to field testing and final deployment.

Required Qualifications

• Experience: Minimum 5+ years of hands-on experience in Synthetic Aperture Radar (SAR).
• Track Record: Proven experience delivering complete, deployable SAR systems on airborne platforms (UAV, aircraft, or satellite).
• Technical Depth: Deep understanding of SAR image formation, radar systems, RF fundamentals, and signal processing.
• Software Skills: Solid software engineering skills in Python and/or C++.
• Mindset: A system-level thinker capable of bridging the gap between research algorithms and deployable production code.
• Education: Strong academic background in a relevant field, but with a focus on practical application.

Preferred Qualifications

• Experience with GPU / CUDA for high-performance computing.
• Background in ground-penetrating or material-penetrating SAR (soil, foliage, etc.).
• Previous experience with defense or government SAR programs.
• A valid driving license (valid in Germany) for field operations.

Why Join Our Client?

• Cutting-Edge Tech: Work directly with the founders on revolutionary SAR, RF, and AI technology.
• Unique Workspace: The base is located at a former Berlin airport, featuring a massive on-site outdoor testing area for immediate field validation.
• Impact: Be a core engineer in a well-funded startup where your work saves lives and makes the world a better place.
• Equity: Competitive compensation package including VSOP/equity options.

How to Apply.Even if you don’t match every requirement perfectly, we encourage you to apply if you have real SAR experience and a hands-on engineering mindset. Please contact our recruiters.

Requirements
SAR

About the Role
 

At ARX Robotics, you will help keep the software behind our autonomous ground systems reliable, correctly configured, and ready for real-world use. 
Your work will connect software, hardware, and user needs, directly contributing to products built for demanding operational environments.

You will join an experienced team that will support your development while giving you practical responsibility from the start. This role is a strong fit if you enjoy hands-on troubleshooting, working with both technology and people, and seeing the impact of your work in the field.
 

Key Responsibilities:

• Configure systems, flash firmware, and support software-related service tasks.
• Diagnose and resolve system issues onsite and remotely.
• Provide practical technical support that helps users operate our systems effectively.
• Deliver technical training and explain system functionality in a clear, accessible way.
• Contribute to product improvements through bug fixes and software optimization.
• Turn field feedback into practical updates together with Hardware, Customer Operations, and engineering teams.
• Create and maintain clear technical and user documentation.
• Travel to user locations across Ukraine to support system setup, maintenance, and issue resolution when needed.
   

Candidate Requirements:

• Basic confidence working in a Linux environment.
• Basic Bash knowledge and the ability to write simple scripts.
• A practical, systematic approach to troubleshooting and problem-solving.
• Clear, structured communication and the ability to explain technical information and user needs.
• A dependable approach to completing clearly defined tasks and seeking support when needed.
• Basic understanding of English and willingness to improve.
• Curiosity, initiative, and a collaborative mindset.
   

Nice to have:

• A valid driving licence and experience driving a manual vehicle.
• Experience in miltech, defense, software, technical support, or another technology-focused environment.
• Basic knowledge of hardware systems and hardware troubleshooting.
• Knowledge of C++ or Python.

Please note: You do not need to meet every single requirement to apply. We welcome motivated candidates who are eager to grow into the role and develop their expertise further.
 

We Offer:

• Competitive salary and benefits package
• Opportunity to work with a highly innovative, international, and dynamic team
• Room for professional growth and development
• Participation in the company’s success, with access to regular events, knowledge exchange and meetups

The Defense Procurement Agency (DOT) is a national agency responsible for procuring ammunition, UAVs, military equipment, fuel, food, clothing, and other critical supplies for the Armed Forces of Ukraine and the Defense Forces.

Our mission: Strengthening Ukraine by ensuring reliable support for the Defense Forces while fostering the development of the national defense industry.

Our vision: To become the driving force behind the transformation of Ukraine's defense procurement ecosystem—not only operating the system, but continuously improving it.
 

We are looking for a System Administrator / Infrastructure Engineer who will be responsible for administering, maintaining, and developing our Microsoft-based IT infrastructure, ensuring system stability and availability, and supporting network infrastructure and security solutions.

Responsibilities

• Administer and maintain Microsoft-based IT infrastructure.
• Install, configure, and maintain software, server systems, and hardware components.
• Configure and maintain backup procedures to ensure data integrity, availability, and recoverability.
• Implement and maintain security solutions, including firewalls, antivirus software, and Endpoint Detection and Response (EDR) tools.
• Monitor systems for potential vulnerabilities and security threats, investigate issues, and ensure timely remediation.
• Administer and maintain server infrastructure, cloud environments, and virtualization platforms.
• Configure and support network infrastructure, VPNs, firewalls, and DNS.
• Respond promptly to system alerts and incidents, troubleshoot technical issues, and minimize service downtime.
• Create and maintain up-to-date technical documentation.
• Develop, test, and maintain disaster recovery plans and procedures.
• Automate routine administrative tasks using scripts.

• Provide technical support to users and help resolve IT-related issues.

   

Requirements

• Hands-on experience administering and supporting Microsoft 365, Exchange, Active Directory / Microsoft Entra ID, Intune, and IIS.
• Experience working with cloud infrastructure based on Microsoft Azure and the VMware virtualization platform.
• Experience administering Windows Server. Linux administration skills will be an advantage.
• Practical experience writing PowerShell scripts to automate routine administrative tasks.
• Understanding of networking fundamentals and the OSI model.
• Experience configuring and managing network equipment from vendors such as MikroTik, Cisco, or Aruba.
• Experience configuring and maintaining VPNs, firewalls, and DNS.
• Understanding of backup, recovery, and system restoration procedures.
• Ability to independently troubleshoot technical issues, analyze root causes, and implement effective solutions.

• Strong sense of responsibility, attention to detail, and readiness to respond to incidents promptly.

   

Will be a plus:

• Experience working with Docker and containerized environments.
• Experience administering and supporting security solutions such as DLP, NGFW, EDR/XDR, PAM, and SIEM.
• Experience working with relational databases, including Microsoft SQL Server and MySQL.
• Experience with infrastructure automation and Infrastructure as Code (IaC) tools such as Ansible and Terraform.
• Experience developing, testing, and improving IT infrastructure disaster recovery procedures.

What We Offer

• Meaningful work that directly contributes to strengthening Ukraine's defense capabilities.
• Official employment with competitive salary and full social benefits.
• Professional development, learning opportunities, and career growth.
• Structured onboarding and dedicated mentorship.
• A collaborative, supportive, and mission-driven team.
• Modern office near the metro with reliable internet and equipped shelter.

By joining our team, you will contribute to one of Ukraine's largest digital transformation initiatives in the defense sector and help build the future of defense procurement.

Ready to make a real impact? We'd love to hear from you. Apply today!

* By submitting your CV, you consent to the processing of your personal data in accordance with applicable legislation.

** Due to the high volume of applications, only candidates whose qualifications best match the position will be contacted.

Our partner is an innovative technology company specializing in the development and implementation of cutting-edge solutions in embedded systems and radio frequency (RF) engineering.

We are currently seeking an experienced Firmware Engineer to join our team.

Key Qualifications:
BA or Master’s degree in computer science
Strong level of C/Embedded programming (FW, drivers)
5+ years of experience in industrial or embedded software development
Excellent debugging skills
Familiarity with embedded firmware design
Expertise in hardware components and design
Programming under Linux environment
Advanced experience with Git tools and workflows

Responsibilities:
Developing and implementing software for industry specific hardware
Designing firmware solutions based on company or project needs
Designing detailed firmware plans
Ensuring that firmware is always functional and up-to-date
Troubleshooting and optimising firmware

The Defense Procurement Agency (DOT) is a national agency responsible for procuring ammunition, UAVs, military equipment, fuel, food, clothing, and other critical supplies for the Armed Forces of Ukraine and the Defense Forces.

Our mission: Strengthening Ukraine by ensuring reliable support for the Defense Forces while fostering the development of the national defense industry.

Our vision: To become the driving force behind the transformation of Ukraine's defense procurement ecosystem—not only operating the system, but continuously improving it.
 

We are looking for a BI Analyst / BI Developer to help turn data into actionable insights, develop BI solutions, and provide teams with reliable analytics to support informed business decisions.

Responsibilities

• Build and maintain BI solutions, from data sources to dashboards and reports.
• Analyze business needs, explore data, and translate stakeholder requests into effective analytical solutions.
• Develop and optimize data models, Power BI reports, and SQL queries.
• Improve and evolve our analytics infrastructure using modern data tools and approaches.
• Work with dbt and Airflow to build and maintain analytical workflows.
• Ensure data quality and contribute to monitoring processes and early detection of data issues.
• Review existing BI solutions, identify weaknesses, and propose improvements.

• Collaborate with business and technical teams to ensure that analytical solutions meet users’ needs and support decision-making.

   

Requirements

• At least 1 year of experience in BI, business analytics, or data analytics.
• Hands-on experience with Power BI and SQL, including report and query optimization.
• Understanding of data modeling principles and how to build high-quality data models.
• Experience building end-to-end BI solutions, from data sources to dashboards.
• Understanding of modern approaches to analytics infrastructure and data workflows.
• Experience working with dbt and Airflow.
• Understanding of data quality assurance and monitoring principles.

• Strong analytical thinking, attention to detail, and the ability to investigate problems independently and find solutions.

   

We’d also love to work with someone who:

• Enjoys exploring new challenges and learning about unfamiliar business domains.
• Is comfortable tackling problems where not everything is clear from the start.
• Is curious, asks questions, and enjoys investigating data and testing hypotheses.
• Communicates effectively with people without a technical background.
• Can propose multiple approaches to a problem and explain why one solution is better in a given context.
• Takes ownership of outcomes, not just individual tasks.
• Wants to understand how the business works and how data can improve decision-making.
• Is eager to improve existing solutions, identify gaps, and suggest meaningful enhancements.

What We Offer

• Meaningful work that directly contributes to strengthening Ukraine's defense capabilities.
• Official employment with competitive salary and full social benefits.
• Professional development, learning opportunities, and career growth.
• Structured onboarding and dedicated mentorship.
• A collaborative, supportive, and mission-driven team.
• Modern office near the metro with reliable internet and equipped shelter.

By joining our team, you will contribute to one of Ukraine's largest digital transformation initiatives in the defense sector and help build the future of defense procurement.

Ready to make a real impact? We'd love to hear from you. Apply today!

* By submitting your CV, you consent to the processing of your personal data in accordance with applicable legislation.

** Due to the high volume of applications, only candidates whose qualifications best match the position will be contacted.

We are looking for a Field Integrations Engineer to integrate our radar systems into clients’ autonomous platforms, from protocols and firmware to debugging hardware right in the field.

If you are strong in embedded and you’re not afraid of live testing, complex integrations or working with clients, you will get to work with real systems, not just lab prototypes. The role is based in our Kyiv lab, with the option to move between the Kyiv and Vilnius offices later.

Main Responsibilities
– Leading integrations of the radar platform with client systems

– Adapting communication protocols and data structures

– Writing and modifying firmware and drivers in C / Rust (bare-metal)

– Writing Python scripts for data conversion

– Debugging hardware and software on-site at the client

– Working with PCB schematics, oscilloscopes and measurement equipment

– Analyzing Ethernet traffic and locating points of failure

– Taking part in field tests

– Communicating with the client’s engineers and management

– Passing integration findings to the internal engineering team

Mandatory Requirements
– Hands-on experience integrating hardware and software systems in the field

– Strong C for embedded; experience with Rust

– Experience with bare-metal firmware and drivers

– Python for scripting and automation

– Ability to read electrical schematics and work with an oscilloscope

– Experience debugging network communication (Ethernet, packet analysis)

– High emotional intelligence and the ability to work with clients under pressure

– Readiness for frequent travel and on-site work

Nice to have
– Experience with radar or sensor systems

– Background as a Field Application Engineer (FAE) or Integration Engineer

– Knowledge of CAN, UART, SPI, I2C

– Experience in defense tech, UAV, aerospace, automotive or robotics

– Real cases of deploying hardware and software in the field

We offer
– Hands-on work with real hardware in the field, not just behind a screen

– Top-of-market salary

– Founding equity

– Relocation bonus, company housing and daily allowance

– Full logistics coverage

– Work in our Kyiv lab, with the option to work between Kyiv and Vilnius later

– A fast-moving team without unnecessary bureaucracy

– Your work will operate in real-world conditions

We are looking for Talent Sourcer for an IT product company that is rapidly growing and delivering a unique, cutting-edge solution in the defense tech industry. 

Talent Sourcer will support the expansion of the company during this period of rapid growth. You will be responsible for attracting and identifying potential candidates, finding effective ways to connect with them, and continuously improving sourcing strategies and processes. 

Key Responsibilities: 

• Develop and implement effective sourcing strategies for roles across various levels. 

• Utilize a wide range of sourcing techniques, including Boolean/X-ray search on different platforms such as LinkedIn Recruiter, GitHub, social media and alternative sources. 

• Craft personalized and multi-channel outreach campaigns to increase candidate response rates and engagement. 

• Analyze sourcing data and recruitment funnel metrics, including interview conversion rates, response rates, and others. 

• Conduct market mapping and competitor research to identify talent pools and hiring trends. 

• Collaborate closely with hiring managers to ensure alignment and effectiveness in recruiting efforts. 

Skills and experience: 

• Minimum of 2 years of hands-on experience as a Sourcer. 

• Demonstrated expertise in sourcing across both technical and non-technical roles. 

• Knowledge of different sourcing tools and techniques, including Boolean search, and sourcing across various platforms (e.g., LinkedIn, GitHub, etc.). 

• Strong understanding of diverse job roles and the ability to quickly understand and adapt to new job requirements. 

• Results-oriented mindset with a proactive approach, creative problem-solving, and a high degree of flexibility. 

• Proficiency in English at an intermediate level or higher. 

• Experience sourcing candidates in the EU and USA markets will be a plus. 

What company offers: 

• A dynamic and innovative work environment that supports professional growth. 

• The opportunity to make an impact on the company’s processes and outcomes. 

• Work with Ashby ATS and the latest sourcing tools. 

• Competitive salary, official employment, employee military deferral (if applicable), and stable working conditions. 

• Flexible working arrangements (office / hybrid, flexible working hours). 

• A chance to contribute to the development of a cutting-edge and fast-moving product. 

If you're passionate about identifying top talent and enjoy using innovative sourcing strategies to find the perfect fit, we'd love to hear from you!

About the Role

We’re looking for a hands-on engineer to take ownership of incoming drones from OEM partners — confirm they’re fit to fly, resolve or escalate issues, and hand them over to pilots in a ready and reliable state.

This role sits between OEM supply, engineering, testing and pilot operations. You’ll be the person who makes sure aircraft arriving into Occam aren’t just present, but actually usable. When it’s done well, pilots don’t lose time on issues that should have been caught earlier, engineering gets clear feedback on recurring defects, and OEM quality improves.

This is a hands-on engineering role in a fast-moving defence-tech environment. It takes strong technical judgement, attention to detail, practical problem-solving and the confidence to say when something isn’t ready.

What you’ll own

Incoming drone acceptance

• Run structured acceptance checks on UAS platforms arriving from OEMs
• Inspect airframes, wiring, connectors, batteries, payload interfaces and control systems for defects, missing parts or poor build quality
• Confirm each aircraft matches the required build standard, configuration and documentation
• Record acceptance status clearly before it moves to the next stage

Integration and configuration

• Prepare drones for use with Occam’s systems, software and procedures
• Carry out configuration, calibration and setup before test or handover
• Apply approved software, firmware and configuration updates with engineering
• Keep every change recorded and traceable

Flight readiness and functional testing

• Run pre-flight functional checks to confirm the aircraft can fly safely and reliably
• Support ground testing, systems checks and controlled test activities
• Work with pilots and test teams to confirm readiness before handover
• Maintain a clear pass / fail / hold status for each drone

Defect management and OEM feedback

• Log quality issues found during inspection, integration, testing or handover
• Capture defects clearly — photos, notes, serial numbers, evidence
• Keep the OEM quality tracker updated so recurring problems get spotted and escalated
• Work with engineering and supplier teams on root causes, and track fixes to closure

Handover to pilots

• Hand drones over in a clear, consistent, ready-to-use state
• Confirm the pilot has the correct aircraft, equipment, documentation and known-status info
• Brief pilots on relevant configuration notes, limitations or recent fixes
• Record every handover — who took the aircraft and when

Process and workspace discipline

• Keep accurate records of status, defects, fixes, test outcomes and handovers
• Keep the Kanban / tracking board current and drones stored by status
• Maintain labelling, tagging and inventory control
• Help improve the acceptance process as volumes grow

Required experience

• Hands-on experience with drones, UAVs, UAS platforms, robotics, electronics or aviation systems
• Strong practical skills: inspection, troubleshooting, configuration and repair
• Experience with structured checks, acceptance testing or quality control
• Good grasp of flight readiness, equipment safety and technical handover
• Ability to diagnose issues across hardware, software, configuration and build quality
• Strong attention to detail and accurate record-keeping
• Comfortable working with pilots, engineers, operations teams and suppliers
• Able to work in a fast-moving, sensitive, high-pressure environment
• Based in and eligible to work in Ukraine; able to travel within Ukraine when required

Desirable experience

• Military drones, FPV systems, fixed-wing or autonomous aerial platforms
• OEMs, supplier quality processes or incoming-goods inspection
• Flight testing, field trials or operational deployments
• Airframes, batteries, radio systems, ground control and onboard electronics
• Configuration management, serial tracking and defect reporting
• Defence, aerospace, robotics or mission-critical hardware
• Ukrainian language skills and strong English

Clearance and location

• Must be based in and eligible to work in Ukraine, and able to travel within the country
• Comfortable in a highly confidential defence-tech environment
• Eligible to obtain and maintain relevant security clearance where required (existing defence/government/military clearance is a plus)

Do you want to make a significant contribution to the victory? Do you want to help win success on the frontline by applying AI to our nation’s drone fleet?

Occam Industries delivers autonomy to the battlefield. We are purely software; we partner with some of the most major OEMs and brigades.

If you want a senior role that still means being one of the best engineers in the business, this is it.

Your Mission

Lead our engineering team to build, integrate, and ship reliable autonomy software to the frontline at speed and scale.

What You’ll Own

• System architecture across our modular autonomy stack.
• Technical direction for the Pilot and Platform engineering teams.
• Hands-on engineering to solve the hardest problems. Expect to spend half of your time in the codebase.
• Working with Product, OEMs and brigades to turn frontline needs into things we can actually build and ship.
• Technical trade-offs across performance, reliability, hardware constraints and speed of delivery.
• Hiring the engineers we need to move faster.

What You Bring

• Deep hands-on engineering — you will need to be credible working in the codebase, not only above it.
• Experience owning system architecture across complex, hardware-adjacent software systems.
• A track record of driving engineering teams to ship, without relying on formal management authority.
• Comfort working closely with product and OEM stakeholders on real-world tradeoffs.
• A build-first mentality. You want to solve hard engineering problems, not manage them from a distance.
• Basic English required; fluent English is a plus.
• Based in Kyiv or within daily commuting distance.

What You Get

• Work that matters: Build products that directly strengthen Ukraine’s defence capability.
• Top-of-market compensation plus equity.
• A senior technical role designed to keep you close to the code and end users
• Direct influence over the architecture and product that drives Occam autonomy into combat.
• We are able to discuss reservations for critical candidates with significant experience.

How We Work

We value speed, judgement and ownership. If you prefer clear boundaries, slow decisions and layers of approval, OCCAM is probably not for you. We want people who build, solve hard problems and adapt when reality changes — not people who wait to be told what to do.

Interview Process

• Typically four stages, completed within a few weeks.
• Offer conditional on a background check by security services.

We like hitting the enemy. You do too? Join us.

Office location: 
Eindhoven, the Netherlands

Project Foundation launched by The Fourth Law and Odd Systems is a semiconductor initiative to mass-produce thermal imaging sensors for Ukraine, the rest of Europe and the United States.

The initiative covers the development of LWIR sensors and the deployment of a network of partner-operated and in-house manufacturing facilities. It will create a new industrial base for defense and civilian needs and supply affordable sensors to manufacturers of drones, vehicles, and robotics.

The first sensors under the initiative are expected as early as 2027.

The Fourth Law is a leading Ukrainian manufacturer of autonomy technologies for drones. Our solutions are codified according to NATO standards and are currently utilized by over 50 units of the Security and Defense Forces of Ukraine, as well as 20+ drone manufacturers.

Odd Systems is a defense technology company specializing in the development and manufacturing of thermal imaging cameras. It was founded by a group of entrepreneurs, engineers, managers, and tech enthusiasts with prior experience at a number of international technology companies.

Purpose of the Role: The MEMS / Semiconductor Processing Specialist develops and owns the step-by-step cleanroom process flow that takes the microbolometer from deposited films to a released, suspended structure. This is a hands-on process engineering role covering photolithography, thin-film deposition, and sacrificial layer etching — both isotropic and anisotropic — with direct responsibility for releasing delicate suspended structures without damage or collapse. The role works in the Eindhoven R&D lab alongside the IC/MEMS Integration and Simulation Engineer and the wider technical cohort, and reports to the CTO.

 

Key Responsibilities:

•  Develop and document the end-to-end cleanroom process flow for microbolometer fabrication, from film deposition through structure release.

•  Own photolithography process steps: mask design coordination, exposure and develop parameters, and critical-dimension control.

•  Own thin-film deposition steps for sacrificial and structural layers, optimizing for uniformity, stress and compatibility with downstream process steps.

•  Develop and tune sacrificial-layer etch processes, both isotropic and anisotropic, to reliably release suspended microbolometer structures without stiction or membrane damage.

•  Troubleshoot yield and process excursions, working from wafer inspection and test data back to root cause.

•  Support equipment procurement, installation and commissioning in the new R&D lab, in coordination with the Technical Programme Manager.

Experience and skills we are looking for:

•  A degree in materials science, microelectronics, physics, or a related field, with hands-on cleanroom process experience.

•  Direct experience with photolithography, thin-film deposition (e.g. PECVD, sputtering) and wet/dry etching in a MEMS or semiconductor cleanroom.

•  Working knowledge of sacrificial-layer release processes and common MEMS failure modes, including stiction and stress-induced curling.

•  Comfortable developing new process flow from first principles, not just running an established recipe.

•  Fluent English, with the communication maturity to work with an international, partly Ukrainian team.

It’s a plus if you have: 

•  Prior work specifically on microbolometers, uncooled IR detectors, or other suspended-membrane MEMS devices.

•  Experience commissioning cleanroom process equipment as part of a new lab or fab standup.

•  Familiarity with ISO Class 7 or better cleanroom operating discipline.

•  Based in, or willing to relocate to, Eindhoven for the Odd Factory One R&D lab.

We are not just looking for employees, but for like-minded individuals who share our values and are ready to build the future of Ukrainian MilTech.

We are looking for an experienced QA Engineer to join a growing DefTech company. In this role, you will be responsible for ensuring product quality throughout the software development lifecycle by validating requirements, identifying risks, improving testing processes, and collaborating closely with cross-functional teams. You will also play an active role in leveraging AI-powered tools to increase testing efficiency and product quality.
 

Responsibilities:
 

• Analyze business and technical requirements to identify gaps, risks, ambiguities, and potential issues.
• Plan and execute functional, integration, regression, end-to-end, and exploratory testing activities.
• Create, maintain, and review test documentation, including test cases, checklists, and regression test suites.
• Define testing scope and ensure adequate test coverage based on product risks and business impact.
• Collaborate closely with developers, business analysts, product owners, and other stakeholders throughout the development lifecycle.
• Participate in release validation and support software delivery processes.
• Drive improvements in QA processes, testing practices, and overall product quality.
• Leverage AI-assisted tools to increase testing productivity and effectiveness.

• Proactively identify opportunities where AI can optimize QA workflows and reduce repetitive manual work.

   

Requirements:
 

• 6+ years of experience in software quality assurance and testing.
• Strong experience with functional, regression, integration, exploratory, and end-to-end testing.
• Ability to independently analyze business and technical requirements, identify risks, gaps, and edge cases.
• Hands-on experience with API testing using tools such as Postman and Swagger/OpenAPI.
• Good understanding of CI/CD pipelines and software release processes.
• Ability to work independently, take ownership, and make quality-related decisions.
• Experience using AI-assisted tools to improve testing efficiency and productivity.
• Strong problem-solving, communication, and analytical skills.
• Upper-Intermediate (B2) or higher English level.
   

Nice to have:
 

• Experience with test automation tools such as Playwright, Cypress, or Selenium.
• Experience with performance and load testing tools such as JMeter or k6.
• Experience with security testing of web applications and APIs.
• Ability to identify potential security risks during requirements analysis and functional testing.
• Experience working in Agile/Scrum environments.
   

The company offers:
 

• Official employment and a competitive compensation package.
• 24 calendar days of paid annual leave, paid sick leave, and all statutory social benefits.
• Medical insurance.
• A strong values-driven culture and a team of highly motivated professionals.
• Opportunities for professional growth and career development.
• Modern work equipment (MacBook or other preferred hardware).
• English language classes and professional workshops.
• Compensation for educational and professional development programs.

Bavovna Defence is a company operating in the miltech sector, specializing in the development of electronic devices for the frontlines. Our products include munition drop controllers, remote detonation systems, target tracking systems, communication systems, and more.

For the past 3.5 years, we have been fully dedicating ourselves and our work to bringing Ukraine’s victory closer and strengthening its defense capabilities.

We are not planning to stop—only to expand! That’s why we are currently looking for a skilled Hardware Engineer, whose responsibilities will include:

• Developing technological maps for the production of electronic devices.
• Designing electronic devices, as well as physical and mathematical models of systems.
• Creating physical models for simulating control systems for electronic devices and aerial vehicles in MATLAB/Simulink.

• Researching and adapting new production technologies (related to development).

   

Requirements:

• Strong knowledge of physics and mathematics.
• Experience working with safety systems.
• Understanding of analog and digital circuit design.
• Knowledge of electromagnetic compatibility (certification experience is a plus).
• Understanding of PCB manufacturing/assembly and knowledge of IPC standards.
• Experience with Git.
• Proficiency in Altium Designer / OrCad / Eagle.
• Ability to read blueprints and work with STEP models.
• Experience with SPICE simulators: LTSpice, PSpice, Multisim, Microcap, Proteus.

• English proficiency (spoken skills are preferred).

   

Bonus points for:

• Experience with BGA packages / multilayer (8+) PCBs.
• Experience with STM32 controllers / FPGA.
• Experience in RF circuit/antenna/SDR system design.
• Experience with instrumentation amplifiers.
• Experience in designing switching power supplies.
• Experience in Safety-Critical / Mission-Critical system development.

What we offer:

• Competitive salary (at or above market level, depending on technical interview results).
• Remote work format.
• Flexible schedule (we prioritize task completion within deadlines rather than fixed working hours).
• A truly friendly team of professionals and like-minded individuals who will support, assist, and eagerly share their expertise with new team members.

We look forward to having you on board! 🚀

We are looking for an Application Security Engineer to help build security into the software development lifecycle across our products and platforms.

In this role, you will work closely with Engineering, DevOps, Architecture, and Security teams to integrate security controls into development processes, identify risks early, and help teams build secure solutions without unnecessary bureaucracy.
 

Responsibilities

• Define and validate security requirements for applications, APIs, integrations, and new services.
• Participate in architecture and design reviews to identify security risks at early stages.
• Build and improve Secure Software Development Lifecycle (SSDLC) practices.
• Integrate security controls into CI/CD pipelines, including SAST, DAST, SCA, Secret Scanning, Container and IaC Scanning.
• Perform security assessments of web applications, APIs, backend services, and AI-driven solutions.
• Support development teams with remediation activities, secure coding practices, and security best practices.
• Develop security standards, baselines, templates, and engineering guidelines.
   

Requirements

• 2+ years of experience in Application Security, DevSecOps, Security Engineering, or a similar role.
• Strong understanding of SSDLC and secure development practices.
• Hands-on experience with SAST, DAST, SCA, threat modeling, and security reviews.
• Good knowledge of OWASP Top 10, OWASP ASVS, API Security, Authentication, Authorization, and Secure Design principles.
• Experience integrating security controls into CI/CD pipelines.
• Familiarity with container security and Kubernetes environments.
• Experience with Infrastructure as Code security (Terraform is a plus).
• Scripting skills in Python and/or PowerShell.
• Understanding of software supply chain security and dependency management.
• Strong communication skills and ability to work effectively with engineering teams.
   

Nice to Have

• Experience with Bug Bounty programs or CTFs.
• Experience securing AI/ML systems and services.
• Experience with Azure, AKS, GitHub Enterprise, Checkmarx, Trivy, or similar tooling.

As a Lead Embedded Software Engineer you are a key part of our Architecture team to develop and implement the core features and functionalities to have our drones operate safely and autonomously in the air.
 

Together with our world-class team, currently seven team members, you will take an empowering role: pushing the boundaries of drone technologies. You will be working closely with stakeholders in Germany and US from the System architecture and Hardware development departments.
 

This is a full-time office job. Candidates must be located in Kyiv.
 

What is your Day to Day Mission:

• Lead a team of embedded engineers
• Implementation, maintenance, and optimization of the Quantum-Systems autopilot firmware and firmware stack
• Design, Conception, implementation, and testing of new autopilot functionalities
• Export of flight control and navigation algorithms from Matlab / Simulink and integration into the autopilot’s embedded framework
• Implementation, maintenance, and optimization of BSP / peripheral and external sensor drivers and their optimized operation in the scope of the real-time operating system
• Building, documenting, and maintaining autopilot firmware for flight tests. Creation of flight test tickets, support of flight tests, and post-flight data analysis
• Creating unit tests, debugging/tracing of the code base for code coverage/functionality testing
• Maintenance of the firmware update eco system, including bootloaders & firmware updates
• Support in the implementation and maintenance of production tools

What you bring to the team:

• You have completed a degree in the field of bachelor’s or master’s degree in software engineering / electrical engineering and you have several years of experience working with embedded systems.
• You have a deep understanding of embedded systems and you are a senior in designing, implementing and optimizing embedded systems.
• You have strong knowledge of microcontrollers (ARM, Cortex-M), real-time operating systems and hardware and communication interfaces interfaces (UART, I2C, SPI, CAN, ETH ...)
• You are experienced with real-time operating systems like FreeRTOS or uCOS II and knowledge of multi-threading, task scheduling, and inter-task communication.
• You have the ability to bridge the gap between hardware and software, understanding the electrical and physical constraints, profound understanding of electronic schematics and efficiently utilizing available hardware resources
• You master version control and collaboration tools such as git and gitlab and you have experience in working in collaborative development environments with agile methodologies.
• You are highly self-motivated and drive your area of responsibility independently
• Due to your open, communicative, friendly, and competent attitude, it is easy for you to be considered as an internal expert

• English level at least B2

   

Why Quantum-Systems:

• We Stand with Ukraine!
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.
• We promise to be your runway for individual and professional growth.

The role is based in the Kyiv region, and we will expect you to work full-time in the office. We have a shuttle service from the nearest metro station.

About the Job

As Linux Software Engineer, you will be a key part of our System Architecture team to develop and maintain the Linux-based systems powering our unmanned aerial vehicles at Quantum-Systems. Together with our World-Class-Team, currently 3 team members, you will take an empowering role: pushing the boundaries of drone technologies.

You will be working closely with stakeholders from the Avionics, Systems Engineering, and Flight Testing departments to integrate hardware, third-party software, and onboard applications into a high-performance Linux platform.

Providing a reliable, scalable, and mission-critical software environment is essential to Quantum-Systems – your mission will have a powerful impact.

What is your Day to Day Mission:

• Maintaining existing as well as creating new Linux applications on the unmanned aircraft
• Designing and coordinating interfaces between teams, documenting the architecture and design decisions
• Integration of hardware and 3rd-party software into the Linux system, aligning with suppliers and other teams
• Testing of existing and new applications. This includes writing unit tests, integration tests, functional tests, and acceptance tests
• Analyzing logs from flights, both from test flights as well as real-world customer issues
• Debugging and finding solutions for software and hardware issues related to the Linux system
• Maintaining and extending the build system, pipeline, and tooling. Creating releases with release notes
• Working in an agile environment and following the defined development process

What you bring to the team:
 

• 3+ years of experience in Linux software development, preferably in embedded or robotics systems
• Strong proficiency in C/C++ (14 or newer) with proven experience developing Linux applications
• Understanding of Linux internals, including system services, device trees, and kernel modules
• Experience with cross-compilation, Yocto, Buildroot, or similar build systems
• Hands-on experience with debugging tools (e.g., GDB, strace, perf) and log analysis
• Familiarity with testing methodologies, including writing and executing unit, integration, and system-level tests
• Experience with CI/CD pipelines, version control systems (e.g., Git), and release management
• Strong problem-solving skills, with the ability to debug both software and hardware integration issues
• Proficiency in technical documentation, including interface definitions and architectural decisions
• Excellent communication and teamwork skills to work effectively across multiple engineering disciplines
• English Intermediate+

Nice to Have:

• Familiarity with middleware and interface standards such as DDS, MAVLink, CAN, or Ethernet
• Knowledge of containerization technologies (e.g., Docker) and virtualization
• Prior experience working in an Agile/Scrum development environment
• Exposure to real-time Linux or safety-critical software development is a plus

Why Quantum-Systems:

• We Stand with Ukraine
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.

• We promise to be your runway for individual and professional growth.

   

About us:

Quantum Systems specialises in the development, design, and production of small Unmanned Aerial Systems (sUAS). The company’s range of electric vertical take-off and landing (eVTOL) sUAS are built to maximize range and versatility and to provide operators with a seamless user experience. By integrating cutting-edge software capabilities, like edge computing and real-time AI-powered data processing, Quantum Systems is building next-generation UAS for clients in defence, security, public sectors.