Jobs

Job Summary

Our embedded software engineering team's mission is to craft reliable, high-performance solutions that reach millions of homes worldwide within the home security market. We follow agile development methodologies with regular sprint cycles, code reviews, and continuous integration practices. The team's established approach emphasizes comprehensive testing, rigorous security standards, and close collaboration with hardware engineering, product management, and customer support teams. We pride ourselves on writing clean, maintainable code and fostering a culture of knowledge sharing and technical excellence.

We're seeking a skilled C++ Embedded Engineer to take ownership of critical software components in our camera-based security devices. This role involves maintaining existing products through comprehensive debugging and bug fixing, as well as developing innovative new features.

Responsibilities and Duties

— Design, develop, and maintain high-quality embedded software in C++ for camera-based security devices.

— Debug and resolve complex software, hardware, and network connectivity issues across the entire software stack.

— Develop new features and improve existing codebases for the product line.

— Optimize software performance for resource-constrained embedded environments.

— Conduct code reviews and provide technical mentorship to team members.

— Participate in architecture discussions and technical decision-making processes.

— Collaborate with QA teams to develop comprehensive testing strategies.

— Document software designs, APIs, libraries, and troubleshooting procedures.

Qualifications and Skills

— At least 5+ years of commercial experience in embedded development, with expertise in C++ (C++17 standard) and deep knowledge of RTOS and microcontroller architectures (ARM, RISC-V).

— Proficiency in the full SDLC, including professional engineering practices like Git, CMake, code reviews, and continuous integration.

— Solid understanding of network programming and experience with multithreading on multicore microcontrollers.

— Expertise in communication interfaces (I2C, SPI, UART, and Wi-Fi) and experience writing device drivers and libraries.

— Hands-on experience with hardware troubleshooting and debugging tools (oscilloscopes, logic analyzers, etc.) and cross-compilation tool chains.

— Ability to work independently and take ownership of complex projects.

— Excellent communication skills for technical discussions and documentation, with a collaborative mindset for cross-functional team environments.

— At least an Intermediate level in both written and spoken English (B1).

Nice to have

— Experience with Python for scripting and automation

— Experience with C in embedded development

— Understanding of security protocols and encryption methods

— Experience using AI-powered tools to enhance productivity and code quality

We offer multiple benefits that include

— The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member.

— Competitive compensation and perks. Annual performance review.

— Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company.

— Gig-contract.

— 21 paid vacation days per year, paid public holidays according to Ukrainian legislation.

— Development opportunities like corporate courses, knowledge hubs, and free English classes as well as educational leaves.

— Medical insurance is provided from day one. Sick leaves and medical leaves are available.

— Remote working mode is available within Ukraine only.

— Free meals, fruits, and snacks when working in the office.

We are looking for a Senior or Lead Software Development Engineer to join a cloud data platform initiative focused on managed Kafka connectors. The role centers on accelerating onboarding of first-party connectors, improving reliability and launch readiness, and helping expand a managed connector ecosystem used in data-intensive cloud services.

Tasks

• Accelerate onboarding of new first-party managed Kafka connectors;
• Improve connector quality, reliability, and operational readiness;
• Integrate authentication and platform-specific cloud requirements;
• Translate connector behavior into implementation details, UI specs, and documentation inputs;
• Support launch gates such as probers, load testing, playbooks, and launch reviews.

Responsibilities

• Strong Java experience, as the core workers and connectors are implemented in Java;
• Practical Go experience for API-facing changes and service integration work;
• Practical experience with GCP cloud;
• Experience integrating, debugging, and improving connector-based or data integration systems;
• Ability to work across performance, stability, authentication, and network-compatibility concerns;

• Strong engineering ownership across delivery, launch readiness, and operational quality.

   

Nice to Have:

• Experience with Kafka Connect ecosystems;
• Experience with CDC-oriented connectors or sink/source integrations;

• Exposure to cloud data systems such as BigQuery, Spanner, Bigtable, Iceberg, or Debezium-based workflows.

   

Engagement Type

• B2B contract.

   

Location / Timezone

• Priority location is Krakow, Poland;
• On-site presence at the Akvelon office

We are looking for a Senior or Lead Software Development Engineer to join a cloud data platform initiative focused on managed Kafka connectors. The role centers on accelerating onboarding of first-party connectors, improving reliability and launch readiness, and helping expand a managed connector ecosystem used in data-intensive cloud services.

Tasks

• Accelerate onboarding of new first-party managed Kafka connectors;
• Improve connector quality, reliability, and operational readiness;
• Integrate authentication and platform-specific cloud requirements;
• Translate connector behavior into implementation details, UI specs, and documentation inputs;
• Support launch gates such as probers, load testing, playbooks, and launch reviews.

Responsibilities

• Strong Java experience, as the core workers and connectors are implemented in Java;
• Practical Go experience for API-facing changes and service integration work;
• Practical experience with GCP cloud;
• Experience integrating, debugging, and improving connector-based or data integration systems;
• Ability to work across performance, stability, authentication, and network-compatibility concerns;

• Strong engineering ownership across delivery, launch readiness, and operational quality.

   

Nice to Have:

• Experience with Kafka Connect ecosystems;
• Experience with CDC-oriented connectors or sink/source integrations;

• Exposure to cloud data systems such as BigQuery, Spanner, Bigtable, Iceberg, or Debezium-based workflows.

   

Engagement Type

• B2B contract.

   

Location / Timezone

• Priority location is Krakow, Poland;
• On-site presence at the Akvelon office

🔹Who we are!

At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?

🔹About the project

Backbase is a Dutch banking software financial technology company that provides a banking infrastructure software platform that it calls engagement banking. The system is used by financial institutions globally from large banks to credit unions and community banks.
 

🔹Requirements

• 5+ years of hands-on experience building and maintaining complex Android applications in production environments.
• Experience in the banking or financial domain is a strong plus.
• Skilled at translating high-level business requirements into secure, scalable, and maintainable technical solutions.
• Strong engineering mindset and follow modern Agile practices throughout the entire software development lifecycle.
• Continuous Integration and Continuous Deployment (CI/CD) are part of your core workflow, ideally using tools like Bitrise or GitHub Actions.
• Mobile development expert who’s always ready to share best practices and lead by example — not just follow them.
• Strong technical expertise in Android architecture patterns such as MVI or MVVM.
• Experience with Jetpack Compose (at least on pet projects) and understanding of its role in modern Android UI development.
• Deep knowledge of Kotlin, especially Coroutines and Flows, and how to use them effectively in real-world applications.
• Solid grasp of Dependency Injection, with hands-on experience using frameworks like Koin (or similar).
• Strong understanding of Android security best practices, including SSL Pinning, secure data storage, encryption, etc.
• Hands-on proficiency with AI tools like GitHub Copilot, Cursor, Claude Code.
• Practical experience with agents, skills, MCP servers, agentic SDLC.
• Practical AI leverage for increasing productivity

🔹9 reasons to join us:

1. Today we're working with the technology of tomorrow.
2. We don't wait for a change. We are the change.
3. We're experts in creating experts (Levi9 academy, Lead9 program for leaders).
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English courses, Professional trainings).
6. Here you can train your body and mind.
7. We've gathered the best locations - comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska subway station) and Lviv (5 minutes from the Opera Theatre) with regular offline internal events
8. We have master's degree in work-life balance.
9. We are actively supporting Ukraine with constant donations and volunteering

Our client build autonomous navigation for UAVs - systems that actually fly, in real conditions, without GPS as a crutch. The team is small, the problems are hard, and the code ends up on hardware. 

If you've worked on vision systems that had to work in the field - not just in simulation - this might be worth a look.

What we're looking for

• 5+ years in computer vision, with real experience in robotics, UAVs, or autonomous systems.
• Shipped real-time vision algorithms — detection, tracking, segmentation, or navigation — not just research code.
• Hands-on with edge deployment and model optimization for resource-constrained hardware.
• Strong Python and/or C++. Comfortable with PyTorch or TensorFlow, and OpenCV.
• Master's or PhD in CS, Robotics, EE, or related field.
• You can own a problem and communicate clearly

Nice to have

• Hands-on SLAM experience (ORB-SLAM, VINS, or similar).
• Familiarity with MAVLink protocol, ArduPilot, or PX4.
• Real-world UAV testing - not just Gazebo.
• Publications or open-source contributions in vision or robotics.

What you'll do

• Design and optimize CV algorithms for localization, mapping, and navigation -own this end-to-end.
• Work on detection, segmentation, SLAM, 3D scene reconstruction, visual odometry, and sensor fusion (cameras, LiDAR, IMUs).
• Deploy and optimize vision models on embedded platforms — Jetson, Raspberry Pi class devices.
• Integrate CV modules with flight controllers and navigation systems via MAVLink/ArduPilot/PX4.

• Work closely with hardware and software teams - this is a cross-functional role, not a silo.

  Run experiments, analyze results, iterate. Ship things that fly.

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

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

Responsibilities:

• Hands-on full-stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, and DevOps

• Working in XP with Remote pairing

   

Requirements:

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

• Good English - verbal and written

   

We offer*:

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

*not applicable for freelancers

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is looking for a Product Marketing Manager with a strong content mindset, sharp market instincts, and the ability to turn ideas into awareness, credibility, and demand.
This role is for someone who understands that great marketing starts with great narratives. Someone who knows how technical audiences think, how modern software teams operate, and how to create content that feels relevant, credible, and worth reading.
You’ll help define how the market sees us, shape our category, and make sure we consistently show up in the right places.

The platform is already live and has paying customers, helping R&D teams significantly increase development speed and efficiency by reducing manual work and enabling engineers to focus only on high-impact tasks.

Key Requirements:
🔹 4+ years of experience in Product Marketing, Content Marketing, Brand, Growth or related roles;
🔹 Strong understanding of LinkedIn, Reddit and modern organic distribution channels;
🔹 Background in software development or experience in engineering environments;
🔹 Understanding of developer workflows, SDLC and R&D processes;
🔹 Experience creating content for B2B / technical audiences;
🔹 Exceptional English writing and storytelling skills;
🔹 Experience marketing to engineers, product teams or technical leaders;
🔹 Ability to translate technical concepts into clear messaging;
🔹 High ownership, self-direction, builder mentality;
🔹 Strong judgment in tone, positioning and narrative;
🔹 Startup experience, ability to build from zero;
🔹 Strong communication skills and comfort working with international teams;

Big Advantage:
🔹 Experience marketing to CTOs, VP Engineering, or R&D leaders;
🔹 Experience with AI products, developer tools, DevOps, or engineering platforms;
🔹 Community-building experience;
🔹 Design, video, or creative production skills;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Define and refine positioning, messaging and category narrative;
🔹 Build awareness on LinkedIn, Reddit and other relevant channels;
🔹 Create and publish content: founder posts, thought leadership, product stories, campaigns;
🔹 Translate product features into business value for technical and business audiences;
🔹 Develop brand voice, tone and narrative across all touchpoints;
🔹 Manage and grow communities (Reddit, Discord, Slack, etc.);
🔹 Work with founders, customers and prospects to understand market language and pain points;
🔹 Test and scale growth ideas based on performance;
🔹 Support go-to-market strategy and sales materials (case studies, decks, etc.);
🔹 Gather customer feedback to influence positioning and product direction;
🔹 Measure and analyze marketing performance (awareness, engagement, conversion);
🔹 Help build demand in an emerging market;
🔹 Act as a bridge between product and market, deeply understanding SDLC and developer needs;

Interview stages:
🔹 HR Interview;
🔹 Screening Call;
🔹 Technical Deep Dive;
🔹 Team Fit Conversation ;
🔹 Final Review & Decision;
🔹 Reference Check;
🔹 Offer;

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe.

About the role: 
We are looking for a Full Stack Engineer to join the CTO Office and take ownership of our client’s product development lifecycle. You'll work hand-in-hand with the CTO Office team, taking initiatives that have been validated as POCs and leading them into production-grade, scalable solutions.

Responsibilities:
- Take validated POCs from the CTO Office and architect, build, and ship them as production-ready applications
- Design and develop full-stack solutions — modern frontends paired with robust, scalable backends
- Build and deploy within the AWS ecosystem (Lambda, ECS/EKS, DynamoDB, S3, RDS, API Gateway, CDK/CloudFormation, and more)
- Own the CI/CD pipeline — design, build, and maintain automated workflows using GitHub Actions
- Design and build internal agentic AI solutions using LangChain and LangGraph — from multi-step agent orchestration to RAG pipelines and tool-augmented workflows
- Leverage Agentic IDE tools (Cursor, Claude Code, and similar) as a core part of your development workflow, applying best practices around skills, MCPs, agents, and prompt engineering to accelerate delivery
- Collaborate closely with the CTO Office, product stakeholders, sales, and pre-sales teams to translate business needs into elegant technical solutions 
- Make pragmatic technology decisions that balance speed, quality, and maintainability

Requirements:
Must-Have:
- 5+ years of professional full-stack development experience
- Frontend: Strong proficiency with Vue.js or React (with modern tooling such as Nuxt/Next.js, TypeScript, Vite, Tailwind CSS)
- A builder's mindset — you thrive on taking something from prototype to production
- Understanding of system design principles — you can architect scalable, reliable distributed systems and make sound trade-offs
- Grasp of data structures and design patterns — to work alongside your Agentic IDE you write efficient, well-structured code
- Backend: Solid experience with Python and modern frameworks — primarily FastAPI, or Django/Flask
- Hands-on experience with the AWS cloud ecosystem — you've built and deployed real workloads on AWS
- Hands-on experience building agentic AI systems with LangChain and LangGraph — including multi-agent orchestration, tool use, and RAG patterns
- Proven experience designing and maintaining CI/CD pipelines with GitHub Actions including automated PR based Code Reviews.
- Working knowledge of Agentic IDEs and AI-assisted development (Cursor, Claude Code, Windsurf, or similar) — including familiarity with skills, MCP servers, agents, and AI-driven development best practices
- Strong understanding of RESTful API design, relational and NoSQL databases, and cloud-native architecture patterns

Nice-to-Have:
- Experience with Amazon Bedrock and/or Azure AI Foundry for building and deploying AI/ML solutions on managed cloud platforms
- Experience with Infrastructure as Code (AWS CDK, Terraform, CloudFormation)
- Experience in security infrastructure (IDP, authentication protocols - S) and writing secured applications 
- Security & Identity - understanding of application security, including SSL/TLS certificates, secret management, and identity providers (IDP). Experience implementing authentication and authorization protocols such as SAML, OAuth2, and JWT.
- Foundational SRE knowledge, including monitoring, logging, and observability (e.g., CloudWatch, Prometheus, ELK) to ensure production stability and performance.
- Familiarity with FinOps concepts, cloud cost management, or multi-cloud environments
- Experience building data-driven tools — predictive models, analytics dashboards, or recommendation engines
- Exposure to Azure services alongside AWS
- Experience with containerization and orchestration (Docker, Kubernetes)
- Background in B2B SaaS or enterprise software development

At Promova, we’re redefining language education for the AI-powered era — making learning accessible, personal, and inspiring for millions of people worldwide. Our 150+ teammates unite around one mission: to connect people, bridge cultures, and empower lifelong learners — in every country except aggressor states (yes, even Antarctica).

We blend AI innovation with human creativity to help people speak with confidence and truly belong anywhere. If you want to test bold ideas, move fast, and make an impact — you’ll feel right at home.

About the Role

We're looking for a User Acquisition Manager to launch and scale paid acquisition from scratch for a new live education product within the Promova ecosystem. 

You will be the first UA specialist on this project — owning the full cycle from day one: tracking setup, campaign launches, global scaling. 

No bureaucracy, no approval chains — just a fast-moving setup where you can influence everything.

Sounds like what you've been looking for? It is.

Why This Role is Your Next Challenge

• You're the first UAM on this product — and the one deciding how to grow it from zero to millions of users. Full autonomy and real ownership.
• No gap between marketing and product — campaign insights go straight into development; the focus is on LTV and retention, not just performance.
• No dark monetization practices. No 6-step upsell funnels. A customer-centric product built to deliver real value.
• The infrastructure is already there — Claude integrations, marketing auto-rules, bulk campaign setup, creative agents, and others. Not built from scratch, built to scale.

Your Areas of Impact

• Set up and run paid campaigns in Meta: from account preparation and audience targeting to scaling performance.
• Support the analytics system: set up Appsflyer, Pixel and CAPI, and turn data into actionable marketing insights.
• Achieve sustainable profitability by meeting ROI/ROMI targets and controlling CPA.
• Search for the growth opportunities by testing new audiences, markets, and marketing approaches.
• Test initiatives: develop hypotheses, run experiments, and scale successful strategies.
• Partner with cross-functional teams to align objectives, exchange insights, and enhance overall performance.

What We’re Looking for

Core experience:

• 1+ year in performance marketing with hands-on Meta Ads experience.
• Proven expertise in mobile direct-buy UA: you know how to run and scale app campaigns.
• Deep understanding of AppsFlyer, SKAN, and CAPI. 
• Testing mindset: ability to form hypotheses, run experiments, and scale what works.
• English B1+.

Bonus points:

• Experience with Tiktok Ads, Google Ads, Apple Search Ads.
• Background in EdTech or language learning products.
• Already built app tracking from zero — Pixel, CAPI, full setup.

Corporate Benefits

🎓Growth — offered to help develop your skills, advance your career, and reach your full potential: сompensation for additional training at external events and seminars; access to a large electronic library; paid online courses and conferences;

🧘🏼Wellbeing — offered to support your overall health, happiness, and resilience: work remotely from any safe location worldwide; flexible work schedule; 20 paid vacation days per year; an unlimited number of sick days, medical insurance coverage; mental health support; power station reimbursement; employee discounts and special benefits for remote employees.

🏄🏼‍♂️Fun & Activities — offered to foster informal communication and strengthen social connections among teammates: remote team compensation for gathering and team-building episodes.

Interview Process

• Intro-call with Recruiter
• Meeting with the Hiring Manager
• Test Task
• Bar-raising

Interested? Apply now and let’s make the growth happen!

Not your thing? Got a recommendation? Check this out!

We’re looking for a dynamic and enthusiastic Project Manager to join our Design & Web Solutions Business Unit. In our fast-paced environment, things move quickly, so you’ll need to stay ahead by adapting to new tools and technologies with ease. Being results-driven and able to manage multiple tasks simultaneously will be key to your success.

Our Project Managers are professionals at bringing ideas to life. They not only understand the underlying business goals behind requirements but also provide teams with valuable user insights, drive projects to completion, and ensure we deliver exceptional experiences that delight our customers.

Requirements:

• At least 3 years of project management experience in a dynamic environment
• Proficiency in Agile, Scrum, and Kanban methodologies and tools
• Strong organizational and multitasking skills
• Critical thinking and problem-solving abilities
• Experience managing stakeholders and aligning team capabilities with client needs
• Excellent verbal and written communication skills
• Ability to meet tight deadlines while maintaining quality
• Quick learner, adaptable to new tools and processes
• Proven track record of delivering projects aligned with business objectives
• Strong interpersonal skills and ability to lead cross-functional teams
• Upper-Intermediate or higher level of English

Will be a plus:

• Knowledge of design workflows and tools (Figma, Sketch, Adobe Creative Suite)
• Experience communicating effectively with design teams

Personal Profile:

• Results-driven and proactive
• Flexible and adaptable to change
• Strong leadership and team motivation skills
• Detail-oriented with a focus on quality
• Excellent collaboration and interpersonal skills

Responsibilities:
 

Project estimation and planning:

• Lead the estimation process, defining project scope, timelines, and resource requirements for creative, graphic design, and web development projects (WordPress, WebFlow, etc.)
• Develop detailed project plans and schedules, ensuring all phases are accounted for — from concept to delivery

Project activities control, time, and effort tracking:

• Monitor project progress, ensuring tasks are completed on time and within budget
• Track team effort, project hours, and deliverables to ensure efficient use of resources and adherence to timelines
• Provide regular project status updates to stakeholders and management

Team coordination:

• Coordinate with cross-functional teams, including designers, developers, and marketing specialists, ensuring smooth collaboration
• Ensure all team members are aligned with project goals, timelines, and deliverables

People management:

• Lead and motivate the project team, providing guidance and support to ensure high performance
• Foster a positive work environment where team members can collaborate, solve problems, and grow professionally

Team utilization:

• Ensure optimal utilization of team members by assigning tasks based on skills, availability, and project needs
• Balance workloads across the team to prevent burnout and maintain productivity

Project risk management:

• Identify potential project risks early on, assess their impact, and develop mitigation strategies to minimize risks
• Proactively address issues as they arise, ensuring projects stay on track

Successful execution and delivery of projects:

• Ensure projects are executed efficiently and delivered within the agreed scope, budget, and timelines
• Maintain a high standard of quality in all deliverables, ensuring they meet both client and internal expectations

Customer business needs identification and product solution selection:

• Work closely with clients to understand their business needs and goals
• Collaborate with internal teams to recommend optimal solutions that align with client objectives and add value to their business

Support in developing marketing strategies:

• Contribute to the creation of marketing strategies, especially concerning internal branding and Sigma Software’s identity.

Are you the kind of person who instinctively tries to break things just to make them better? Do you enjoy uncovering hidden edge cases, questioning assumptions, and ensuring users get a seamless experience every time?
 

They are looking for a QA Engineer who thrives on exploratory testing, adversarial thinking, and delivering exceptional product quality. In this role, you’ll work closely with Product, Engineering, and Design teams to shape reliable, user-centric experiences across web and mobile platforms.
 

This is an opportunity to have a real impact - not just by finding bugs, but by influencing quality standards, improving testing processes, and helping teams ship with confidence.

 

What You’ll Do
 

• Design, maintain, and execute detailed manual test plans for new features and releases
• Dive deep into exploratory and adversarial testing to uncover edge cases, usability gaps, and unexpected behaviors
• Identify, document, prioritize, and track issues throughout the development lifecycle
• Investigate API logs and network traffic using tools like Charles Proxy, Fiddler, or Chrome DevTools to pinpoint front-end vs. back-end issues
• Validate complex user flows, backend data integrity, and database states
• Partner closely with developers to troubleshoot problems and verify fixes
• Clearly communicate testing progress, known risks, and release readiness across teams
• Ensure flawless functionality, UI/UX consistency, and responsiveness across web, iOS, and Android platforms
• Maintain clean and actionable bug reports and testing documentation
• Collaborate cross-functionally with Product, Design, and Engineering to continuously improve product quality
• Contribute to evolving QA practices, workflows, and testing standards
• Use AI-powered tools and workflows to improve testing efficiency, bug analysis, and quality processes
  
   

What They’re Looking For
 

• 4+ years of experience in manual QA or software testing
• Strong experience creating and executing comprehensive manual test plans
• A curious, detail-oriented mindset with a passion for finding issues before users do
• Solid understanding of web and mobile technologies, including:
  • HTTP
  • HTML
  • Client-server architecture
  • Caching
  • SQL & NoSQL databases
• Strong troubleshooting, bug tracking, and prioritization skills
• Experience validating APIs, backend flows, and complex data interactions
• Excellent communication and collaboration skills in cross-functional environments
• Comfortable working in fast-paced product and engineering teams
• Experience using AI tools to improve productivity, workflows, or testing efficiency
• Bachelor’s degree in Computer Science, a related technical field, or equivalent practical experience
   

Nice to Have

• Experience coding in Java, Python, or JavaScript
   

Why This Role Stands Out

You won’t just execute test cases - you’ll help shape product quality from the ground up. They value people who think critically, challenge assumptions, and bring a strong sense of ownership to the user experience. If you enjoy solving complex problems, collaborating with smart teams, and making products better every day, this could be the right fit for you.

Ever worked in an environment where engineers are expected to challenge bad code instead of silently accepting it?
Where spotting hidden bugs, architectural problems, and security risks matters more than shipping features fast?
Where your opinion is valued specifically because you can say: “this implementation is wrong and here’s why”?

If you’re confident reviewing unfamiliar systems, care deeply about engineering quality, and prefer direct technical communication over corporate politeness - this role is for you.

About the Company

Our client is a Switzerland-based trading technology company building a stock trading platform used for real-time trading operations and financial workflows.

The platform includes: real-time market data, order entry & order management, portfolio management, watchlists & alerts, trading dashboards, internal CRM systems.

The Role

We’re looking for a Senior Software Engineer focused on architecture review, code quality, reliability, and technical evaluation across multiple systems.

This is not primarily a feature-development role.

You’ll work with existing production systems, reviewing and evaluating code written in Python, TypeScript/React, and partially Rust-based environments.

What You’ll Do

Review & Evaluate Engineering Quality

• Analyze backend and frontend codebases critically
• Review architecture using Clean Code, SOLID, and DDD principles
• Detect technical debt and maintainability risks
• Evaluate pull requests and engineering decisions

Hunt Bugs & Reliability Problems

• Detect race conditions and async issues
• Identify off-by-one errors, null/None problems, and memory leaks
• Review concurrency behavior and hidden edge cases
• Identify production risks early

Improve System Performance

• Analyze scalability and Big-O complexity
• Detect N+1 queries and inefficient backend logic
• Identify unnecessary React re-renders
• Find bottlenecks affecting reliability or responsiveness

Review Security & Infrastructure Risks

• Evaluate systems against OWASP Top 10 risks
• Detect SQL injection vulnerabilities and secret leaks
• Review unsafe input handling and path traversal risks
• Evaluate dependency vulnerabilities (CVEs)
• Review Tauri IPC sandbox/security issues

Evaluate Testing Standards

• Review pytest, vitest, and cargo test implementations
• Identify weak coverage and missing edge cases
• Evaluate TDD quality and mocking approaches
• Detect gaps between “tests passing” and real reliability

Work Across Modern Tooling

• Use ruff, mypy, eslint, and clippy
• Review Git diffs and PR workflows
• Read and evaluate API integration code
• Detect misuse of OpenAI, Anthropic, or Gemini SDKs
• Review REST/WebSocket reliability patterns (retry logic, idempotency, etc.)

What You Bring

• Strong experience as a Senior or Staff-level Software Engineer
• Deep expertise in Python 3.11+
  • Typing
  • Async programming
  • Pydantic
• Strong TypeScript 5+ and React 19 experience
• Ability to read and evaluate Rust code (Tauri 2 ecosystem)
• Strong understanding of software architecture and engineering quality
• Experience reviewing unfamiliar codebases quickly
• Strong debugging and analytical skills
• Confidence giving direct, critical technical feedback
• Ability to prioritize issues by severity (Critical / Major / Minor)
• Upper-Intermediate English or higher
• German reading skills required (comments, commits, and technical discussions may partially be in German)

Nice to Have

• Experience reviewing ffmpeg or Pillow pipelines
• Familiarity with Vector DB or ONNX-related code patterns
• Experience in trading, fintech, or high-reliability systems

What You Get

• Engineering-First Environment: Work with teams that care about architecture, maintainability, and technical correctness - not just feature velocity.
• Real Technical Influence: Your feedback will directly impact engineering standards, code quality, and technical decisions.
• Complex Systems: Trading infrastructure, async workflows, performance-sensitive systems, and real-world scalability challenges.
• Direct Communication Culture: The company values honest technical feedback, critical thinking, and engineering maturity over hierarchy or corporate formalities.
• Strong Autonomy: No micromanagement. Engineers are trusted to make technical judgments and take ownership.

Ready to Work Where Code Quality Actually Matters?

If you enjoy analyzing complex systems, identifying critical issues before production does, and working in a direct, high-level engineering environment —

👉 Apply now and help improve systems built for reliability, performance, and scale.

About the role

We are building a revolutionary system at the frontier of technology and AI.

As a AI-native Engineer, you won’t just write code — you will shape the future of how apps are built. You’ll be part of the early execution engine—shipping core capabilities, refining the experience, and elevating reliability. Expect tight loops, clear ownership, and visible impact. You'll engage directly with first clients, adapt the platform to their needs, and set the stage for the next generation of software creation.

What we’re looking for

We want someone who doesn’t just “fit the role” but defines it:

• Open-minded explorer: ready to try bold ideas, new approaches, and cutting-edge tools.
• Hacker mindset & problem solver: able to connect the dots across complex systems and find elegant solutions.
• Analytical and resilient: thrives in debugging intricate, interconnected architectures.
• Startup speed enthusiast: comfortable hacking fast, shipping early, learning from feedback, and polishing later.
• Experienced in Cursor, Claude Code or other AI coding assistants.
• Passionate about AI-driven Engineering: turning AI into your engineering team-mate.
• Natural leader: with the drive to inspire and guide people.

Why join us?

• Be among the first engineers driving a bold, world-changing vision.
• Work at the bleeding edge of technology and AI, where experimentation is not just allowed but expected.
• Direct influence on product.
• A chance to build something that reshapes how things get done in today’s world.
• A team that values curiosity, creativity, and the pure joy of hacking together the future.

This isn’t just another job. This is your chance to engineer the future of software itself.

Technical stack 

!Prior experience with these technologies isn't mandatory, provided you demonstrate a strong willingness to learn and leverage AI tools. At the end of the day, we consider these to be just tools wielded by a SE.

Core technologies:

• TypeScript, React.js, Next.js, Bun.
• ClickHouse, PostgreSQL, Redis
• Docker / Kubernetes
• Kafka
• Supabase, Inngest, Posthog

Nice to have:

• Vue.js
• Python
• Go
• Ruby

Hiring Process

Stage 1: Interview with HR (1h).

Stage 2: Interview with VP of Engineering.

Stage 3: Tech. Interview

Stage 4: Interview with the team.

What we offer for your success

• Very warm and friendly working environment and flexible working schedule.
• 20 days off + paid national holidays, and 12 sick days paid by the company per year.
• Medical insurance, and health protection programs (with COVID-19 and dental coverage).
• Continuous professional development and growth opportunities.

Senior Full Stack Engineer

We’re building the Production ready system from the PoC and looking for a Senior Full Stack Engineer who enjoys creating scalable products and taking ownership of real technical decisions. You’ll work closely with product and design teams, shape parts of the architecture, and help turn ideas into a production-ready platform.

Requirements:

• 5+ years of software development experience with JavaScript, TypeScript, and modern ES6+
• Strong experience with React and Next.js
• Strong experience with backend development using Node.js / NestJS
• Hands-on experience with MongoDB and PostgreSQL
• Hands-on experience with MQTT
• Experience building applications that can be deployed on both OnPrem and Cloud platforms
• Experience building scalable applications and contributing to system architecture
• Ability to take ownership of features and technical solutions
• Comfortable working in fast-paced, product-driven environments
• Strong communication skills and ability to collaborate with both technical and non-technical stakeholders
• Upper-Intermediate English (B2+)

Nice to Have:

• Experience with React Native or WebSockets
• Experience working in startup or early-stage environments
• Experience with Azure, IoT Hub, Microsoft Entra ID
• Previous experience mentoring engineers or contributing to technical leadership

Responsibilities:

• Develop and deliver key features of a new product from concept to launch
• Contribute to the design and implementation of scalable frontend and backend architecture
• Collaborate closely with product, design, and engineering teams
• Take ownership of technical solutions and help drive implementation
• Participate in code reviews and maintain high engineering standards
• Contribute to development best practices and team workflows
• Support and mentor less experienced engineers when needed
• Continuously improve performance, reliability, and scalability of the platform.

Department: Data Platform
Reports to: Data Engineering Lead
Employment Type: Full Time
Work Model: Fully Remote
Location: Remote EMEA

 

About Traffic Label

Traffic Label is a fast-growing, data-driven technology company operating in the iGaming and affiliate marketing space, building scalable products focused on performance, analytics, and automation across global markets.

What we’re building
We’re building a Customer Data Platform: one unified player profile across our group of brands. The platform should help the business:

 

• Improve acquisition. Understand who actually converts, and why others don’
• Increase conversion. Replace generic flows with journeys built for the specific player in front of us.
• Segment players properly. Who’s a high-value player? Who’s at risk of leaving? Who’s a VIP?
• Reactivate before churn. Spot players who are about to leave and bring them back with offers that match what they actually want.

Tech stack:

• Snowflake (with Snowpipe and Cortex Analyst LLM agent).
• dbt, Python.
• Airflow (Astronomer), AWS (S3, Lambda), Terraform, GitHub Actions.
• Omni BI on top. Reverse ETL into marketing platforms.
• Medallion architecture: bronze, silver, gold.

We’re early in the build, and the person we hire helps shape the foundation.

Role Overview
You sit between the business (Product Owner, stakeholders) and the engineering team.
About 30% of your time is practical data work: validating that CDP capabilities behave as specified, exploring data before specs are written, testing hypotheses for new capabilities, building shared gold layer models that consumer teams use, and helping those teams understand what data is available. It is not business reporting or analytics built for individual brands.

The other 70% is Systems Analysis: turning what you find into specs engineers can build from, owning data quality from symptom to root cause, raising what isn’t right before it ships, and shaping the semantic layer so other business lines can find and trust the data.

Four things define the systems analysis side:

1. Turn business intent into specs that engineers can build from. Talk to stakeholders, figure out what they actually need, and write it down. Each spec covers source schema, target model, transformation logic, business glossary, schedule, data quality checks, consumer, and use case. Stay reachable through development. Engineers will have questions.
2. Find and fix data quality problems at the root, alongside the engineering function. Trace lineage, identify the cause, work with the data source owner on the fix, check downstream impact, and close the loop.
3. Confirm what’s delivered does what we said it would. Validate against the spec you wrote. When the data isn’t right, you raise it before it ships.
4. Make data usable beyond the team that asked for it. Contribute to the semantic layer, data descriptions, and shared definitions so other business lines can find what they need, understand what it means, and trust it without going through you each time.

You work on the Data Platform layer: CDP build, identity resolution, data quality, semantic definitions, and governance. Business analytics on top of the platform, such as dashboards and performance reports for specific brands, is produced by analyst teams aligned to those brands. Your job is to make sure those teams can do theirs: trustworthy data, clear definitions, fast issue resolution.

The team
You sit within the Data Platform alongside:

• A Product Owner who sets the roadmap and business priorities.
• The Data Engineering function. Your manager (Data Engineering Lead) and the engineers building the platform.
• Embedded QA function. Owns automated validation.
• Shared DevOps across the wider organisation.

Where you’ll start
Identity resolution. Deterministic matching is already running in our MDM across five data sources. You extend coverage to the remaining sources and validate match quality at scale. The harder cases are future scope: hashed identifiers without keys, duplicates across sources, device and behaviour signals. They start when we add dedicated ML engineering capacity, with no committed timeline yet. You’ll own the spec and acceptance for that work when it begins.

Skills & Experience

• SQL. Expert level. Window functions, complex joins, and root cause investigation on large datasets.
• dbt. Practical experience. You can write models, write tests, and debug them.
• Python. Comfortable for ad hoc analysis, scripting, and data manipulation.
• Confident across the modern data stack. You investigate problems yourself instead of waiting for DE, and you can explain the root cause to the business in plain language.
• Medallion or layered data architectures.
• You’ve written specifications that engineers built from.
• You’ve owned a data quality problem from “something looks off” to “fixed at source”.
• You can talk to business stakeholders and a backend engineer in the same hour without losing either of them.
• Background in iGaming, affiliate marketing, SaaS, or other high-volume digital businesses.
• Experience unifying customer or user profiles across sources, sometimes called Customer 360 or Single Customer View. Angles: identity matching, semantic modelling, etc.

What We Offer

• Opportunity to work on scalable, high-impact products in a growing iGaming business
• Collaborative and fast-paced engineering environment
• Exposure to modern technologies and architecture
• Competitive salary and performance-based incentives
• Flexible working environment and supportive team culture