Jobs Golang

We are New Wave Devs, a senior engineering team. We are hiring a Senior Go engineer to embed long-term with our client, a European (Netherlands-based) AI-native design and creative-tools company building the backend of their AI "Studio" product.

It is a fast-paced product team: new frontier AI models are pushed into production within a day or two of release. You will own real pieces of the backend and work directly with their team.

What you will do:
• Design and scale Go microservices that manage the lifecycle of AI generations (image, video, audio, 3D, vector)
• Handle long-running, resource-intensive inference tasks and high data throughput
• Work with AWS (EKS, S3, Lambda), Kafka and SQS for async processing, ConnectRPC / gRPC / GraphQL
• Bridge AI model outputs into user-facing creative workflows

You should have:
• 5+ years backend, Go-first
• Strong AWS (EKS/K8s), Kafka or SQS, gRPC/ConnectRPC, microservices at scale
• Ownership mindset, comfortable when specs are not perfect, able to switch between shipping fast and building for scale
• Good English (daily work with the client team)

Nice to have: AI/ML model serving, inference pipelines, GPU-accelerated workloads, or genuine hands-on interest in gen-AI tools.

We offer: long-term full-time role, competitive rate, fully remote, fast start (days, not weeks).

Hello! ✨

We’re Wildix, a global leader in Unified Communications & Collaboration as a Service (UCaaS) and we’re on a mission to redefine how businesses connect. Our secure, web-based and AI-powered solutions help companies around the world collaborate smarter, serve customers better and grow stronger — and we want you to help shape what’s next.

About Us…

In 2005, brothers Dimitri and Steve Osler set out to reimagine how businesses communicate, and that vision became Wildix. Today, from our headquarters in Tallinn, Estonia, Wildix is one of the world’s fastest-growing UCaaS companies, with 300+ team members from 15+ nationalities, working across Europe, the UK, the Americas and beyond. We serve businesses in 135+ countries through a partner-first ecosystem, delivering secure, intuitive solutions that keep companies connected, productive and ready for what’s next.

At Wildix, we don’t just build technology, we live it. As a remote-first company, we rely on our own platform every day to collaborate globally and innovate fast. With steady growth and a strong foundation, we offer real opportunities to advance your career as we scale, making an impact in a global team that’s shaping the future of work.

At Wildix, our mission is clear: Empower companies worldwide with seamless communication solutions that drive productivity, efficiency, and growth.

About The Role:

We are looking for a Backend Developer to join our Business Layer & Portal team. In this role, you will be a key contributor to our core business platform, managing critical integrations and services. This is a polyglot, AWS-heavy environment where your code will orchestrate workflows between Wildix cloud infrastructure and major business systems (SAP, Salesforce, Stripe, etc.). If you love serverless architectures, solving complex business logic, and working with both PHP and Go, you’ll fit right in.

Are you up for the challenge?

What You Will:

• Develop and support core application services: Build, test, and debug backend features.
• Integrate with enterprise platforms: Build and maintain secure integrations with Salesforce, SAP B1 Service Layer, payment processors (Stripe), and tax/VAT engines (SureTax).
• Work on Serverless AWS infrastructure: Develop and deploy serverless event-driven applications on AWS using AWS Lambda, API Gateway, SQS, Route53, and AppConfig.
• Optimize Performance & Security: Enhance API latency, build robust caching strategies with Redis/ElastiCache, and protect system integrity through secure token-based and scope-based authorization.
• Collaborate cross-functionally: Work closely with Customer Care, SAP, CRM, SRE, Sales, Marketing, CLASSOUND, and Accounting teams to build requested features and troubleshoot integration bottlenecks.
• Maintain documentation: Write and update API specifications and system design diagrams for seamless team collaboration.
   

What You Will Bring:

• 2+ years of professional backend development experience, with solid proficiency in PHP 8.x and/or Go (Golang).
• Practical experience building applications on AWS (AWS Lambda, SQS, API Gateway) and utilizing Infrastructure as Code (AWS SAM).
• Strong SQL skills (MySQL, MSSQL / SQL Server) and a solid understanding of cache-first patterns (Redis, Memcached).
• Proven track record of designing, testing, and debugging third-party API integrations (CRM, payment gateways, ERP systems, external web services).
• Experience in writing clean, testable code with robust unit/integration testing (PHPUnit, Go testing).
• Upper-Intermediate English skills (B2+) for daily collaboration in our international team.
   

Bonus Points If:

• Experience with Bref (PHP on AWS Lambda) and modern PHP API design (PHP-DI, FastRoute, Harmony/Laminas middleware).
• Direct experience with SAP B1 Service Layer, Salesforce REST API, or automated tax calculation services.
   

Why You’ll Love It Here

👫 Work with a Supportive, High-Performing Team – We believe in trust, autonomy, and working with bright, passionate individuals who drive real impact.

🌍 A Truly International Workplace – Our diverse and inclusive team ensures you’ll always feel connected and supported, no matter where you are.

🚀 Shape the Future of Global Communication – Be part of a team transforming how businesses operate in an era of remote work and AI-powered collaboration.

💼 Join a Profitable & Stable Company – We’re not a startup experiment, we’re a two decade old success story with sustained profitability, meaning we can back your boldest ideas.

What we offer

🏖️ Generous Time Off – Take the breaks you need to relax, recharge, and come back inspired.

💻 Top-Tier Tech – Love Mac? So do we! We equip our team with the best tools for success.

🚀 Career Growth & Development – Access to programs and events to keep you at the top of your game.

🌱 Well-being Support – We offer access to psychology sessions to support your mental and emotional health

Happy with them? We offer even more! Our Benefits are country-specific, you can ask your recruiter for more information

Interview Process

🤝 Step 1: Initial Screening – A chat with our Talent Team to understand your background, experience, and motivations (30 mins)
🛠️ Step 2: Final Tech Interview – A conversation with Team Lead and an SRE to ensure alignment with our values and mission (60 mins)

We Are Wildix

Wildix is an equal-opportunity employer. We value diversity and welcome all applicants regardless of race, gender, age, religion, or any other characteristic. Everyone is encouraged to apply and is welcome to join our Blue Ecosystem. 

Ready to join us? Apply Now!

About the project:

We are looking for a Golang Developer to join a project building and maintaining the backend of a ticket sales platform for the client in the live events and ticketing space. The client is a UK-founded B2B SaaS company with a presence in the Gulf region, providing white-label, high-scale backend systems. The platform focuses on real-time data synchronization, event-driven architecture, and multi-channel API integrations. The team maintains and evolves the existing codebase and is open to new ideas — there is real opportunity to introduce new approaches and architectural improvements.

Typical Tech Stack:

Back-end: Go (Golang), gRPC, REST, Protobuf, PostgreSQL, Redis, AWS SQS/SNS, ENT (ORM).

Frameworks: Standard Library (net/http), Gin, or Fiber (for high-throughput APIs).

Cloud & Tools: AWS (full stack setup — EC2, Lambda, EventBridge, SQS/SNS, IAM, networking), Docker, Kubernetes, GitHub + CI.

AI Tools: OpenAI API; Claude Code — main AI tool used by developers on this project.

Requirements:

• Go Core Mastery: 5+ years with Go. Deep knowledge of Goroutines, channels, and memory management (GC tuning, avoiding leaks);
• Distributed Systems: Experience with Service Discovery, Circuit Breakers, and the Saga Pattern for distributed consistency;
• Data & DB Expertise: Strong SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/Redis). Expert in GORM or raw SQL for high-performance queries; experience with ENT is a plus;
• Cloud-Native Skills: Strong hands-on AWS expertise — ability to set up and configure AWS infrastructure end-to-end (Lambda, EventBridge, SQS/SNS, IAM, etc.), plus Docker and Kubernetes orchestration;
• Third-Party Integrations & Data Mapping: Experience integrating external APIs and mapping/transforming data between different systems;
• English (B2+) & soft skills: strong communication skills and ability to work effectively in a team;

Nice to have:

• Full-stack Awareness: Experience with TypeScript/React to better collaborate with front-end teams;
• AI/ML Integration: Building high-throughput Go wrappers for AI inference or agentic AI systems;
• Background in ticketing, live events, or other event-driven B2B SaaS platforms;
• Advanced Patterns: Experience with CQRS (Command Query Responsibility Segregation) or Hexagonal Architecture;
• Payment Processing: Experience with Stripe or similar payment gateways;

Responsibilities:

• Design and develop highly concurrent, scalable microservices using Go and TypeScript (for full-stack alignment);
• Optimize existing bottlenecks in the backend by implementing efficient Go concurrency patterns;
• Maintain high code quality through rigorous unit testing (using go test and testify) and code reviews;
• Maintain the existing code, refactor it, and build new features. New ideas are welcome, and there is an opportunity to improve the project with new approaches and architectural solutions;
• Backend development for a ticket sales platform, including integrations with third-party APIs, data mapping between different systems, payment processing with Stripe, and implementing and maintaining backend services;
   
   

About us:

Softjourn is a full-cycle consulting and software development company, with expert product teams experienced in Fintech, Media & Entertainment, with a special emphasis on Ticketing. Headquartered in Silicon Valley, California, with R&D offices in Ukraine, Poland, and Brazil, Softjourn is a global software development company with over 20 years of experience.

Softjourn has been honored as a veteran-friendly business by the Veteran Hub in Ukraine. We are committed to creating a supportive environment for veterans and implementing processes that address their needs. We highly value the unique skills and perspectives that military veterans bring to our company and are dedicated to assisting their transition to the workforce.

Softjourn Inc. is an Equal Opportunity Employer. We celebrate diversity in all forms and are committed to maintaining a discrimination-free workplace that treats applicants and employees with dignity and respect. Our employment process is conducted without regard to race, color, religion, nationality or ethnic background, sex, pregnancy, sexual orientation, gender identity or expression, age, disability, protected veteran status, genetic information, or other attributes protected by state, federal, and local law.

Hey there! We're looking for an ambitious tech lead ready to own the entire 𝗔𝗜 𝗚𝗧𝗠 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 - from code to deployment. No micromanagement, just real ownership. 

🔧 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂'𝗹𝗹 𝗱𝗼
• Build features end-to-end: Go backend (API + background workers) and React frontend - hands-on, no split between "backend" and "frontend"
• Own the full deployment cycle: builds, systemd, nginx, Postgres migrations, rollbacks
• Integrate external services: email (Brevo, IMAP), data enrichment (Apollo, Hunter, ZoomInfo), LLMs (OpenRouter, Claude), Slack, CRM
• Build data pipelines: CSV imports, deduplication, idempotent updates
• Review PRs, merge, deploy
• Work directly with non-technical stakeholders - turn a conversation into a shipped feature

⭐ 𝗪𝗵𝗼 𝘆𝗼𝘂 𝗮𝗿𝗲
• Product-minded -you resolve ambiguity with sensible defaults, not endless spec requests
• Fast but security-conscious - mass email means one mistake can hurt domain reputation
• Autonomous - ship it, verify it, fix it, confirm it, on your own

• Production-level Go: goroutines, contexts, pgx, clean SQL (no ORM)
• React + TypeScript + Vite + Tailwind, React Query
• PostgreSQL: strong SQL, indexing, migrations
• Linux, Docker, nginx, systemd - independent deployment and ops
• Email deliverability (SPF/DKIM/DMARC), IMAP, transactional providers
• LLM integration in production
• Scraping (Playwright, anti-bot evasion)
• Solo or small early-stage team experience

🚀 𝗪𝗵𝗮𝘁 𝘄𝗲 𝗼𝗳𝗳𝗲𝗿
• Fully remote- work from anywhere in the world
• Build and shape your own team as the product grows
• Full ownership and freedom to execute your vision, no bureaucracy
• Direct, visible impact -  what you ship actually matters

Hey there! We're looking for an ambitious tech lead ready to own the entire 𝗔𝗜 𝗚𝗧𝗠 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 - from code to deployment. No micromanagement, just real ownership. 

🔧 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂'𝗹𝗹 𝗱𝗼
• Build features end-to-end: Go backend (API + background workers) and React frontend - hands-on, no split between "backend" and "frontend"
• Own the full deployment cycle: builds, systemd, nginx, Postgres migrations, rollbacks
• Integrate external services: email (Brevo, IMAP), data enrichment (Apollo, Hunter, ZoomInfo), LLMs (OpenRouter, Claude), Slack, CRM
• Build data pipelines: CSV imports, deduplication, idempotent updates
• Review PRs, merge, deploy
• Work directly with non-technical stakeholders - turn a conversation into a shipped feature

⭐ 𝗪𝗵𝗼 𝘆𝗼𝘂 𝗮𝗿𝗲
• Product-minded -you resolve ambiguity with sensible defaults, not endless spec requests
• Fast but security-conscious - mass email means one mistake can hurt domain reputation
• Autonomous - ship it, verify it, fix it, confirm it, on your own

• Production-level Go: goroutines, contexts, pgx, clean SQL (no ORM)
• React + TypeScript + Vite + Tailwind, React Query
• PostgreSQL: strong SQL, indexing, migrations
• Linux, Docker, nginx, systemd - independent deployment and ops
• Email deliverability (SPF/DKIM/DMARC), IMAP, transactional providers
• LLM integration in production
• Scraping (Playwright, anti-bot evasion)
• Solo or small early-stage team experience

🚀 𝗪𝗵𝗮𝘁 𝘄𝗲 𝗼𝗳𝗳𝗲𝗿
• Fully remote- work from anywhere in the world
• Build and shape your own team as the product grows
• Full ownership and freedom to execute your vision, no bureaucracy
• Direct, visible impact -  what you ship actually matters
 

We are looking for a Senior Go Engineer with a passion for building robust, high-performance backend systems. In this role, you will be responsible for designing and implementing scalable microservices, ensuring system reliability through optimized concurrency patterns, and maintaining high-quality code standards. You will focus on developing low-latency API responses, managing efficient data handling, and collaborating with cross-functional teams to deliver production-grade infrastructure.

About the Client

Our customer is an innovation-driven organization that provides an end-to-end, cloud-first software platform for the ready-mix concrete industry. Their solution streamlines and optimizes critical operations - from quoting, batching, and dispatch to delivery and invoicing - enabling real-time management of production and business processes. Leveraging Google Cloud and AI-driven insights, they are transforming complex logistical and data challenges into scalable, production-grade tools that improve operational efficiency, reduce waste, and enhance satisfaction across plant operators, dispatchers, and sales teams.

Responsibilities

• Backend Development: Design and implement high-performance microservices using Go and the Gorilla Mux router, focusing on clean code, concurrency, and low-latency API responses.
• Stakeholder Collaboration: Act as a proactive team player by engaging directly with stakeholders and product teams to discuss, define, and translate complex business requirements into high-quality technical solutions.
• CI/CD & Quality: Utilize an understanding of CI/CD pipelines and DevOps best practices to contribute to reliable deployment cycles and high code quality.
• API & Web Integration: Develop and maintain efficient APIs and web integrations that ensure seamless communication between backend services, frontend applications, and third-party providers.
• Third-Party Integration: Manage integrations with third-party providers, ensuring robust, scalable, and secure connectivity between external services and our core platform.

Qualifications

• Experience: 5+ years in software engineering, with at least 3+ years of professional experience building and scaling applications in Go.
• Backend Fundamentals: Solid experience with Go frameworks like Gorilla Mux and working with relational databases such as PostgreSQL.
• Development Lifecycle: Experience with CI/CD tools, containerization (Docker), and writing comprehensive unit and integration tests.

Would be a plus:

• Cloud Expertise: Proficiency in Google Cloud Platform (GCP), with specific experience in Cloud Run and infrastructure management.
• Frontend Proficiency: Experience with React and React Query to understand and support full-stack integration.
• Industry Experience: Background in logistics, delivery, or complex resource management systems.
• Messaging: Experience with Google Pub/Sub for building event-driven architectures.
• Frontend Basics: Familiarity with React to better understand how backend AI responses are consumed by the UI.

We are looking for a Senior Go Developer to join a long-term project for our client.
 

Requirements

• 5+ years of commercial software development experience
• Strong expertise in Go (Golang)
• Experience building scalable backend systems and APIs
• Solid understanding of software architecture and best development practices
• Polish language proficiency (mandatory)
• English level B2+ will be an advantage
   

Project Details

• Start date: ASAP (ideally mid-July)
• Full-time engagement
• Long-term cooperation
• Remote / Location: Any
   

Additional project details will be shared with selected candidates during the next stages of the recruitment process.
 

If you are an experienced Go Developer and fluent in Polish, we'd love to hear from you!

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

We are looking for a Senior Go Engineers! 

Requirements:

• 4+ years of experience with Go programming language.
• Proven ability to design and implement scalable and reliable software solutions.
• Strong understanding of event-driven architecture.
• Experience with containerization and orchestration tools like Docker and Kubernetes.
• Hands-on experience with RDBMS and/or NoSQL databases.
• Strong understanding of event-driven architecture + hands-on experience with Event Brokers.
• Experience with observability — implementing logs, metrics, and tracing.
• Proficiency in working with cloud platforms such as Google Cloud Platform (GCP) and/or AWS.
• Proficient in using Git, GitLab, and GitLab CI for source control and continuous integration.
• Excellent problem-solving abilities.
• Strong time management and organizational skills to handle multiple tasks effectively.
• Upper-intermediate level of English, both written and verbal.
   

Nice to have:

• Familiarity with the Twelve-Factor App methodology.
• Knowledge of Cloud Events and GitOps practices.
   

Responsibilities:

• Develop high-performance, testable, and maintainable code to deliver new functionality.
• Conduct code reviews to ensure quality, maintain standards, and share knowledge across the team.
• Integrate industry-leading third-party services into the platform.
• Mentor team members and actively share knowledge to foster growth and collaboration.
• Propose and implement innovative technical initiatives to improve systems and processes.
   

Why Join Us:

• Flexible remote or hybrid working format based on your location.
• No Time Trackers: We value trust and focus on results.
• Career growth, professional development, and regular performance reviews.
   

Hiring Steps: HR Interview > Technical Interview (no test task, no live-coding needed) > Reference check > Offer
 

Our benefits to you:
☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed

🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided

🏖Paid vacations, sick leave, personal events days, days off

💵Referral program — enjoy cooperation with your colleagues and get the bonus

📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences

🎯Rewards program for mentoring and coaching colleagues

🗣Free internal English courses

✈️In-house Travel Service

🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more

🎳Other benefits could be added based on your location 
 

We’re looking for a AI-First Developer who uses Claude Code as their primary IDE. You build complete systems from schema to deploy, understand agentic loops from the inside, and write your own MCP servers.

Responsibilities:

• Use Claude Code as your primary environment — agentic workflows, sub-agents, and multi-step orchestration are part of your daily routine
• Architect and ship end-to-end features from schema to production, owning the full slice
• Build and operate Go services on AWS and Cloudflare Containers
• Develop Vite + React frontends using react-strict-dom, Suspense, and server components
• Stand up edge APIs on Cloudflare Workers with the right storage primitive for each job
• Write internal skills, MCP servers, and slash commands that make the whole team faster
• Own the bash, Dockerfiles, and CI/CD glue that keeps the system running
• Critically evaluate AI output

Requirements:

• Hands-on experience with Claude Code — agentic workflows, sub-agents, hooks, slash commands
• Strong knowledge of Go and container-friendly service design
• Deep understanding of React + Vite — Suspense, server components
• Hands-on experience with AWS (EC2, EKS, S3, RDS) and Kubernetes
• Practical knowledge of the Cloudflare stack — Workers, R2, KV, D1, Durable Objects
• Good understanding of AI tool calls — schemas, retries, streaming, failure modes
• Experience with Terraform, Docker, and CI/CD pipelines
• Familiarity with Stripe and Stripe Connect
• Terminal-native — bash, Linux, tmux
• Fluent English for direct client communication

We Offer:

• Innovation Culture: Work in a team that actively experiments with AI and modern development approaches
• Real Product Impact: Direct collaboration with a client and influence on product decisions
• Flexible Work: Remote work or a modern office in Kyiv
• Generous Time Off: 20 paid vacation days + 15 sick leave days annually
• Professional Growth: Compensation for courses, certifications, and learning resources
• Cutting-Edge Tools: Access to premium AI tools (Cursor Pro, Сlaude Code, Codex, GitHub Copilot, etc.)

Recruitment Process:

1. HR Interview
2. Tech&Final Interviews
3. Job Offer

If you have any questions or need clarifications, feel free to reach out to our Talent Hunter Team by email.

ProfiSea Labs is building an AI-powered multi-cloud management platform that helps CloudOps engineers and IT leaders optimize cloud usage, cut costs, and automate complex workflows through next-generation intelligence.

What you'll do:

Design and implement features in Python-based backend services powering the Uniskai platform
Develop and maintain a Kubernetes agent written in Golang
Integrate cloud infrastructure data with the Uniskai FinOps platform
Work with Kubernetes APIs, CRDs, controllers, and cluster-level components
Build reliable, observable, production-ready services
Collaborate with product and infrastructure engineers to ship real features, not demos


What we're looking for:

1+ year of professional software development experience
Strong proficiency in Python — this is your primary language on the job
Familiarity with Golang — at least basic knowledge is preferred; if you're not there yet, a genuine willingness to learn is a must
Basic understanding of Kubernetes concepts — hands-on experience is a plus, but what matters most is a genuine curiosity and readiness to learn
Ability to read, understand, and improve existing codebases
Pragmatic mindset: you care about things working in production, not just passing in CI


Nice to have (not required):

Experience building Kubernetes operators or agents
Familiarity with cloud platforms (AWS, GCP, Azure)
Exposure to FinOps, cost optimization, or observability tools


What we offer:

Work on real infrastructure software used in production
A team that values engineering clarity over buzzwords
Opportunity to deepen expertise in Kubernetes and cloud internals
Clear career growth path
Medical insurance
Sport compensation
Competitive compensation based on experience


If you want to understand how Kubernetes actually works under the hood — and not just deploy YAML — this role is for you.

Client

Our client is an international SaaS company developing tools that empower businesses to create highly engaging digital experiences. Their solutions are trusted by thousands of organizations worldwide to collect, analyze, and act on user data effectively.

Project overview

The project is an interactive form builder designed for marketers, researchers, HR, sales, and customer experience teams to create engaging, conversational online forms, surveys, and quizzes.

Key features:
Visually appealing conversational design optimized for high completion rates
AI-powered data interpretation
Workflow and logic builders for personalized experiences
Brand customization options
Seamless integrations with various tools to automate data collection and streamline workflows

Position overview

We are seeking a Full Stack Engineer who builds with AI in the loop — both as a daily development practice and as a product capability. You are fluent with coding agents (Claude Code, Cursor, Copilot) and ship faster because of them, not despite them. You understand how to design, prompt, evaluate, and operate LLM-backed features in production — including model selection, context engineering, evals, guardrails, and cost and latency tradeoffs.

Beyond AI, you have deep Golang and React/TypeScript expertise and own features end-to-end: from understanding business requirements, through writing and testing code, to deployment and production monitoring. This role requires strong autonomy, proactive communication, and the ability to deliver reliable, scalable solutions in a modern cloud environment.

This position operates according to the CET time zone.

Responsibilities

• Design and ship LLM-powered product features: prompt design, retrieval, tool and function calling, structured outputs, streaming, evaluation harnesses, and guardrails.
• Operate AI features in production: monitor quality, latency, cost, and failure modes; iterate on prompts, models, and architectures based on real usage.
• Use AI coding tools (Claude Code, Cursor, Copilot) as a core part of your workflow to accelerate delivery without compromising code quality.
• Design, develop, and maintain backend services using Golang and frontend applications using React/TypeScript.
• Collaborate with product managers, designers, and other engineers to translate business requirements into technical solutions.
• Implement event-driven architectures leveraging Kafka for real-time data processing.
• Manage and optimize AWS environments, ensuring scalability and reliability.
• Define and maintain infrastructure using Terraform and deploy services in Kubernetes clusters.
• Build and maintain CI/CD pipelines in Jenkins for automated deployments.
• Ensure high-quality code through comprehensive testing and code reviews.
• Monitor application performance and troubleshoot issues in production environments.
• Contribute to UI/UX improvements and ensure seamless integration between frontend and backend.

Requirements

• Demonstrable production experience shipping LLM-powered features. Be ready to walk through a feature you built: prompts, evaluation approach, failure modes you fixed, and how you measured success.
• Hands-on with at least one major LLM provider's API (Anthropic, OpenAI, AWS Bedrock, or equivalent), including streaming, tool use, and structured outputs.
• Daily use of AI coding assistants in your workflow; able to articulate where they help, where they hurt, and how you maintain code quality.
• Strong, in-depth knowledge of Golang.
• Experience delivering complex backend systems from design to production.
• Solid background with Kafka and event-driven architectures.
• Hands-on experience managing AWS environments.
• Proficiency with Terraform for infrastructure-as-code.
• Experience deploying and operating services in Kubernetes.
• Building CI/CD pipelines in Jenkins.
• Proven ability to ensure quality through comprehensive testing.
• Strong proficiency in React and TypeScript.
• Experience contributing to front-end features, UI components, and client-side logic.
• Ability to seamlessly integrate frontend with backend services.
• Excellent English communication skills, written and spoken.
• Self-driven and able to work independently while managing workload effectively.

Nice to have

• Experience with agent frameworks, multi-step tool-use loops, or RAG systems at scale.
• Built or maintained an evaluation pipeline (offline evals, LLM-as-judge, human review loops).
• Open-source contributions, published writing, or talks on applied AI engineering.

Project Overview:

We are looking for a Senior Go Engineer with strong Elasticsearch expertise to join our team and help design, build, and optimize high-performance search and data processing solutions. The ideal candidate will have hands-on experience developing scalable backend systems in Go and deep knowledge of Elasticsearch architecture, indexing, search optimization, and cluster management.

Responsibilities:

• Design, develop, and maintain backend services using Go (Golang).
• Build and optimize Elasticsearch-based search and analytics solutions.
• Design efficient indexing strategies, mappings, and data models.
• Monitor, troubleshoot, and improve Elasticsearch cluster performance and reliability.
• Develop APIs and microservices that interact with large-scale datasets.
• Optimize search relevance, query performance, and scalability.
• Collaborate with product, engineering, and data teams to define technical solutions.
• Participate in architecture discussions, code reviews, and technical mentoring.

Skills/Requirements:

• 5+ years of software development experience.
• Strong commercial experience with Go (Golang).
• Proven expertise with Elasticsearch/OpenSearch.
• Deep understanding of search architecture, indexing, querying, aggregations, and cluster management.
• Experience building scalable distributed systems and microservices.
• Strong knowledge of REST APIs and event-driven architectures.
• Experience with Docker and Kubernetes.
• Familiarity with cloud platforms (AWS, Azure, or GCP).
• Experience with performance tuning and troubleshooting in production environments.
• Strong understanding of software design patterns and engineering best practices.

Senior Software Enginee

Join our Revenue Management engineering team and take ownership of the software that powers pricing decisions for every SIXT vehicle, worldwide. Our back office platform enables Pricing Managers to configure rates for both B2C and B2B customers and serves as a critical backbone for a range of internal business operations. The current system is built on a legacy codebase and your primary mission will be to reimagine and rebuild it from the ground up. This is a rare greenfield opportunity to architect a replacement for a core, mission-critical platform that directly shapes the prices millions of customers see across the globe.

What You’ll Do:

• Build and maintain scalable services and integrations
• Design solutions to solve complex problems in legacy and data-intensive systems
• Write clean, tested code and perform code reviews
• Own your services: “You build it, you run it.”
• Collaborate with Product Owners and stakeholders

Must-Have Skills:

• 5-7+ years experience with Go, PHP.
• Strong OOP, design patterns, and experience with working with legacy code
• Strong SQL skills (with PostgreSQL, Oracle)
• Unit & integration testing, familiarity with XML, JSON, YAML
• Version control: Git.
• Agentic coding experience
• Fluent English.
 

Nice-to-Have:

• Symfony, frontend frameworks (React, ExtJS, jQuery)
• Microservices, goMicro, REST/gRPC APIs, message brokers (Kafka, RabbitMQ)
• Cloud Experience, Docker, Kubernetes, observability tools (Prometheus, Grafana, Instana)
• Exposure to AI/ML tools and frameworks for data-intensive applications.
• Performance optimization and load testing.
• Security/authentication: OAuth2, JWT, Keycloak

 

What we offer:

• Competitive high salary (pegged to EUR)
• Full-time employment as an internal employee of SIXT TECH Ukraine
• Relocation compensation
• People-oriented management with minimal bureaucracy
• A challenging role where you can learn, grow, and influence architecture and processes
• 25 calendar days of paid vacation
• Educational budget for courses, conferences, and certifications
Medical insurance
• Co-funding (50%) for gym and foreign language classes

If you want to work with modern data tech, real business impact, and a global product at scale — we’d love to hear from you.

YGO.ai is a VC-funded AI tourism platform. 
This is a hands-on senior backend role for someone who uses AI to ship fast and cares about the product, not just the code.

This is not a traditional coding role. 
You'll use Claude Code and other AI tools to multiply your output, always thinking about how the feature you're building helps the user. 
We have no QA team, so you own the quality of what you ship: everything you deliver has to work.
 

What you'll do

• Own features end to end, from spec to deployment to fixing bugs
• Use Claude Code to generate Golang backend code, then review the output for quality and architectural fit
• Fix bugs to learn the codebase, then build new features quickly
• Make fast decisions on what to build, buy or generate with AI
• Talk to customers when they report issues and ship fixes the same day
   

At Lead level, on top of the above

• Be the spokesperson for your pod, internally with product, design and leadership, and externally with clients
• Coordinate work across the pod: break initiatives down, sequence them, surface blockers

• Represent your pod in product planning and bring a strong product point of view to scoping and trade-offs

   

This is not a people-management role. 
No one-to-ones, no performance reviews, no career coaching. 
The coordination work sits on top of your engineering, not instead of it and most of your week is still spent building.
 

Our stack
Go monorepo (no framework, 3+ services), PostgreSQL, Redis, Docker Compose mirroring production, Jaeger tracing, BetterStack for logging and alerting, Redis Asynq queue. 

Claude Code is mandatory.

You must have

• An ownership mentality and a strive for simple, high-quality solutions
• Strong Golang experience: you'll review AI-generated Go and must understand how it works
• Proven experience using Claude Code, with specific examples
• A product mindset: you care why we're building something
• Excellent spoken English and a good connection for daily video calls
• Availability full-time, in European or African time zones (±3 hours from CET)
• Willingness to do occasional on-call
   

Required at Lead level

• Multi-year experience leading a pod, squad or similar unit (a hard must)
• Comfort facilitating a pod without formal authority
• Willingness to be the external face of your pod in client meetings

Don't apply if

• You've never used Claude Code or similar AI coding tools
• You're a perfectionist who loves to code for its own sake
• You need detailed specs before starting
• You see AI as a threat rather than leverage
• You're outside European or African time zones
• You want a people-management role or to lead in name only without being hands-on

We are looking for a Lead Golang Engineer to join an exciting long-term project focused on building an AI-powered tourism platform.

This is not a traditional coding role.

We are looking for engineers who can build and deliver features end-to-end using modern AI-assisted development tools, with a strong preference for Claude Code and similar agentic AI solutions.

This is a hands-on engineering position with strong technical leadership responsibilities. While this is not a people-management role, the successful candidate must have proven experience leading delivery within engineering teams, coordinating execution, and driving outcomes.

Requirements

• 5+ years of commercial experience with Golang (exceptionally strong candidates with 4+ years may also be considered)
• Proven experience delivering production-ready features end-to-end
• Mandatory experience leading delivery within a development team
• Demonstrable experience acting as a technical lead within a squad, including:
  • breaking down work and defining execution plans
  • coordinating engineering efforts across team members
  • representing the team during planning sessions
  • communicating with stakeholders
  • facilitating successful delivery outcomes
• Strong experience using AI coding tools in daily development workflows
• Proven AI-first engineering experience is required
• Hands-on experience with Claude Code is highly preferred
• Candidates should be prepared to provide specific examples of using AI-assisted development tools during the application process
• Strong English communication skills (Upper-Intermediate / Advanced)
• Self-driven mindset, ownership mentality, and ability to work autonomously

Responsibilities

• Build and deliver product features end-to-end using Golang and AI-assisted development workflows
• Drive technical delivery across the team
• Coordinate engineering efforts and help unblock delivery challenges
• Collaborate closely with product, engineering, and business stakeholders
• Contribute to architecture discussions and technical decision-making
• Champion AI-first development practices and help improve engineering productivity through AI tools
• Work in a highly autonomous, fast-moving engineering environment

Project Details

• AI-powered tourism platform
• Full-time position
• Fully remote
• Long-term cooperation
• Start date: ASAP (flexible for the right candidate)

If you're passionate about AI-driven engineering, enjoy taking ownership of delivery, and have a track record of leading technical execution within engineering teams, we'd love to hear from you.