Stream uses Go for our video SFU & chat API. We power chat for many large apps like Strava, Nextdoor, Patreon, IBM, Adobe and Midjourney. In addition to Go we use CockroachDB/Postgres, and Redis.
We are willing to train you on Go if you’re experienced on a different tech stack (we have a 10-week internal onboarding program focused on Go, scalability etc.). Solid engineering experience and motivation to learn is more relevant than prior experience with the language. Roles open from entry level to director/principal go engineers. Remote (EU) or Amsterdam (relocation and Visa sponsorship available).
Hybrid policy: applicants based in the Netherlands or relocating here, are expected to work in the office in Amsterdam 3 times per week. Exemptions may apply to specific cases.
To get a feel for what we do you can have a look at our API tour: https://getstream.io/chat/get_started/
Why Stream? * High scale/ difficult engineering * Default alive. Startup growth opportunity with healthy revenue * Strong engineering culture. Engineering is what makes us succeed * All managers are hands on and capable engineers * Edge network of servers around the world * Great opportunity to learn and grow
Raised $58M from leading VCs (Felicis Ventures, Notable Capital, 01.Advisors, Techstars, Arthur Ventures), including backers like Dick Costolo (01 Advisors, ex-CEO of Twitter), Olivier Pomel (CEO of Datadog), Tom Preston-Werner (Co-Founder of GitHub), Nicolas Dessaigne (Co-Founder of Algolia)
About You This role requires 8-10 years of backend engineering experience. We’re looking for someone with experience in the following areas: * Proficiency with Go or another backend language (and willing to switch to Go); * Scalability - you have experience with building (functional) features that are used by lots of users; * Database/Redis experience - we use Postgres but experience with any relational database is a must have; * Experience with SDK development/ building public APIs
** Bonus points for:** * Experience with AWS or other cloud provider * Python (our AI runs on Python) and Rust experience * Message queues experience * Full text search experience * Bachelor's degree in Computer Science, Engineering or a related field * WebRTC experience
What we have to offer you Salary Range: €110,000 to €160,000 EUR for Staff level (Netherlands); precise compensation range depends on Seniority level and location. We are hiring across a variety of seniority levels, from Senior, Staff, and Principal positions to Director-level roles and above. The exact budget will be determined based on your experience level and location.
Stream employees enjoy some of the best job benefits in the industry:
* A team of exceptional (and friendly) engineers
* The chance to work on OSS projects
* 28 days paid time off plus paid Dutch holidays
* Company equity
* A pension scheme
* A Learning and Development budget
* Commute expenses to Amsterdam covered or the option to use a company bike within the city
* Fitness stipend
* Monthly in-office chair massages by a professional
* MacBook Pro
* Healthy team lunches and plenty of snacks
* A generous relocation package
* An office in the heart of Amsterdam
Note: this list of job benefits applies to Netherlands-based employees and is adjusted per your location of residence.
Our culture Stream has a casual social culture, our team is diverse and we all have different backgrounds. Now, Stream is a team of over 120+ peers from over 35 countries across the globe.
We value transparency, aim for excellence, and support each other on our way to new victories.
Our team consists of the strongest talents worldwide, making Stream a great place to learn and improve your skills.
When it comes to software engineering jobs, our culture is oriented towards ownership and quality: our goal is to deliver stable software.
If you are interested in becoming a part of what we do, apply for this vacancy now!
*Hybrid office policy: applicants based (or relocating to) one of our office locations are expected to work according to the applicable local office attendance policy.*
*Equal opportunity employer statement: Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.*
*Note for external recruiters: We currently have this role covered and do not accept unsolicited agency resumes. We are not responsible for any fees related to unsolicited resumes.*
The Wire Team plays a pivotal, yet behind-the-scenes, role at CAST AI. While they may not directly manage the products that customers purchase, the value they create is indispensable for making all of CAST AI's offerings functional and user-friendly.
The team develops a wide array of user-facing features that contribute to a fully realized platform. This includes designing robust authorization and authentication flows, managing user and organization accounts, as well as implementing notifications and audit systems, among other tasks. Furthermore, they create frameworks and tools that enable other internal teams to seamlessly incorporate these capabilities into their own products.
In addition to these tasks, the Wire Team is also responsible for implementing enterprise-level Single Sign-On (SSO) integrations as a self-service feature. They work on integrating billing systems with various cloud marketplaces and oversee the management of platform entitlements.
In essence, the Wire Team's efforts are crucial to the very existence of our platform. Their mission is to elevate the user experience, regardless of whether the customer is a small startup or a large enterprise.
How Do We Operate? At CAST AI, we specifically seek out Software Engineers rather than Software Developers. This distinction is not merely semantic; it underscores a profound difference in responsibilities and expectations. Let's delve into what sets the two apart.
A Software Engineer is responsible for overseeing the entire lifecycle of a system, starting from its conceptual genesis to its continuous delivery of value to customers. When a high-value feature is identified and properly prioritized, an engineer takes ownership. The task entails not just coding but also meticulously reviewing the technical architecture, design, and feasibility of the feature. Beyond functional aspects, we pay heed to:
Testability Adaptability Performance and Scalability Deployment and Compatibility Debugging and Operational Management. Throughout this comprehensive process, collaboration is key. While engineers are accountable for end-to-end delivery, they are also encouraged to consult with peers to arrive at the most effective solutions. The capacity to work both independently and as part of a team is essential.
To expedite delivery, we have devised a suite of proprietary tools that assist us in various aspects of development. Engineers periodically switch roles to write automated end-to-end tests, optimise our GitOps-enabled continuous integration and continuous deployment (CI/CD) pipelines, or fine-tune our observability stack. We even have a rotation for passive on-call duties to promptly address any issues that arise within our codebase.
It's worth noting that we do not employ separate DevOps or QA roles within our engineering team. Self-reliance is vital: we automate everything and construct our own tooling. Therefore, a broad systems-oriented perspective - going beyond mere software development - is indispensable for success within our team.
Our mantra is straightforward: we build it, we test it, we ship it and we operate it.
Here are some of the tools we use daily: GoLang is our language Kubernetes is our core product AWS, GCP, and Azure are the clouds we operate Postgres and cloud object storage for persistence GCP PubSub for messaging GRPC and REST APIs We use GitLab CI with ArgoCD as our GitOps CD engine Prometheus, Grafana, Loki, and Tempo for observability Deployment charts are written in Helm. Having experience with these tools is not a strict prerequisite for the ideal candidate, but it does offer a competitive edge.
The Omni Team's goal it to solve the multi-cluster multi-cloud Kubernetes challenge! Building on top of concepts from cluster federation it tries to shift the paradigm in Kubernetes usage patterns and how it is being used when many clouds are involved. And while doing this to enable CAST AI customers to realize significant AAA savings for our customers.
To give you a glimpse into the complexities we navigate:
We’ve successfully proven that you can do more with Kubernetes compute resources in the ways people didn't think was possible. We are building on top of giants, by leveraging OpenSource technologies like wireguard and controller-runtime. We write custom Kubernetes operators to orchestrate every component, related to multi-cluster operations in the clusters. Manage OpenSource project usage by maintaining stability, security, flexibility and independence. We strive for minimal APIs and user experience with the goal to make multi-cloud not only a buzzword, but reality. We're breaking new grounds of networking, Kubernetes operators and cloud provisioning at CAST AI. The above examples merely scratch the surface of what we've achieved. Consider that these efforts are magnified by the range of cloud providers we support - and each one presents its own unique challenges. Each development sprint uncovers new hurdles and learning opportunities. We consider ourselves fortunate to operate in a cutting edge technological landscape.
Here are some of the technologies we use in the stack: GoLang is our language. Kubernetes is our core product. AWS, GCP, and Azure are the clouds we operate. Postgres and cloud object storage for persistence. Temporal for our scheduling needs and executor. VirtualKubelet and ControllerRuntime for our operators stack. Terraform for IaC. GCP PubSub for messaging. GRPC and REST APIs. We use GitLab CI with ArgoCD as our GitOps CD engine. Prometheus, Grafana, Loki, and Tempo for observability. Deployment charts are written in Helm. Having experience with these tools is not a strict prerequisite for the ideal candidate, but it does offer a competitive edge.
We are looking for a Senior Security Engineer to join our Security Team. In this role, you will propose new ideas and improvements, collaborate with peers on the architecture, and implement new software solutions for container and network security.
Responsibilities: As a Senior Software Engineer, you will work in a highly skilled team and collaborate throughout the full development lifecycle.
Participate in feature brainstorming, requirement gathering, and customer needs solving Design and architecture software, leveraging your experience to ensure scalability, maintainability and performance Write clean, maintainable and documented code using best practices and coding standards Ensure software reliability through test coverage and local testing Contribute in maintaining CI/CD pipelines, monitoring and alerting stack Respond to incidents to resolve customer issues or service disruptions.
We are looking for a Senior Software Engineer with a passion for platform engineering to join our Wire Team. This role has a strong focus on improving internal Developers' Experience (DX) tools and platforms that are integral to the success of our development process.
Initially, a portion of your time will be spent working closely with the Wire Team. This will help you familiarize yourself with CAST AI’s engineering practices and gain a deep understanding of our product. In the Wire team, your main responsibility will be managing and improving the observability (o11y) stack. Long term, you will have the exciting opportunity to transition and play a key role as one of the founding members of our Tooling Team, where you will shape and influence our approach to DX tooling and automation at scale. In this position, you will:
Maintain and optimize the observability (o11y) stack: manage Prometheus, Grafana, Loki, Phlare, Tempo, and other relevant observability tools. Ensure our monitoring, alerting, and logging systems provide a frictionless way to define engineering team-related alerts.
Improve continuous Integration and Delivery: manage and optimize CI/CD pipelines using tools like GitLab Pipelines, GitHub Actions, ArgoCD, and Helm, ensuring efficient and reliable deployment processes.
Development environment management: enable other engineering teams by maintaining and extending the existing local development tooling managed by Tilt.
Oversee incident management systems: integrate with incident management and alerting tools such as Opsgenie, Pagerduty, or similar to enhance our response capabilities and reduce downtime.
As a Senior Software Engineer, you will have the opportunity to work on different key features of our product. We are currently hiring Senior Software Engineers for the following teams:
Reporting – Builds a scalable reporting system that ingests millions of rows per second into our time-series databases, providing insights into cost savings, workload efficiencies, and Cast AI automation impact.
Pricing – Drives the synchronization of public and customer cloud resources, availability, and dynamic pricing across all major cloud providers. Empowers autoscaling by leveraging discounts, commitments, and cross-cluster tracking to maximize savings. Provides a reliable source of truth for node pricing, resources, components, discounts, and commitments.
Autoscaler – Automates Kubernetes node autoscaling to optimize clusters, balance workloads, remove underutilized nodes, and dynamically allocate capacity in real-time, thereby reducing cluster costs by half.
Workload Optimization (WOOP) – Automates workload resource management by dynamically adjusting resource allocations, helping developers significantly reduce costs and improve application reliability.
AI Enabler – Helps customers deploying and managing LLMs in their Kubernetes cluster and optimizes their workloads by providing cost visibility and intelligent routing for LLM requests to the most cost-effective compute resources (e.g. Grok, self-hosted LLAMA models).
Here are some of the tools we use daily: Languages: GoLang (primary), Python (secondary for some cases) Cloud & Orchestration: Kubernetes, AWS, GCP, Azure Databases & Storage: PostgreSQL, Cloud Object Storage PostgreSQL and Cloud Object Storage for persistence Messaging & APIs: GCP Pub/Sub, gRPC for internal communication, REST for public APIs Observability: Prometheus, Grafana, Loki, Tempo CI/CD & GitOps: GitLab CI with ArgoCD.
Requirements: Strong software engineering skills with experience in distributed systems and backend development (ideally GoLang, but not a hard requirement as long as you’re willing to transition to it) Strong debugging, optimization, and performance-tuning skills Deep understanding of cloud platforms: hands-on experience with cloud platforms like AWS, Google Cloud Platform (GCP), Microsoft Azure, and tools such as Kubernetes for containerization and orchestration CI/CD and DevOps practices experience Strong English skills, both verbal and written Ability to work independently and collaboratively within a team Startup mindset: adaptable, proactive, and comfortable with ambiguity A proactive, problem-solving mindset with a "yes we can" attitude.
At Teleport, we focus on empowering our people to accomplish their goals by working alongside highly talented people to make the most of their careers. You have the freedom, autonomy and trust to do what you’re great at and have a significant impact on the future prospects of the company.
Whether that’s taking a feature or project from ideation to deployment or working with some of the biggest, most interesting companies in the world and solving real challenges for them, we want you to help us build the future.
We’re not a big company. You won’t get lost in a crowd. Instead, we move fast, with a team that wants to make an impact, that shares in our success, and gives you the freedom, power, and autonomy to become the very best at what you do.
You will be joining engineering team of Teleport, unified access plane for SSH, Kubernetes and Database infrastructure.
Nasdaq, SumoLogic and Samsung Electronics trust Teleport to secure access to their infrastructure. Teleport is an open source project, written in Golang with web-based UIs in JavaScript with React.
This is a hybrid role - the expectations will be to be in office for two days a week.
Here is why we love this job ourselves, and hope you will enjoy it too: * The range of problem solving includes networking, performance, security and integrations with existing systems. * Build and test cycles are measured in seconds, integration tests are running in minutes. * Most of the code you will write will be open source. * Our products are loved by their users, you’ll get to talk to some of them on Slack. * We practice thorough code reviews and have an open design process.
Here are the projects you may be working on: * Building backend integrations with cloud provider's managed databases. * Working on scalability and resiliency of clusters with 10K+ nodes. * Implementing advanced HTTPS proxy with identity aware access control. * Building hardened security for Linux and Mac users.
What to expect once you apply: * You will join 30 minute intro call and we will walk you through the compensation, interview process and requirements * You join a slack channel and submit a coding challenge in Golang or Rust using Github
Requirements: * Golang experience * Linux systems engineering * Cryptography engineering experience is a plus
Chestnut, backed by a16z, is applying modern solutions to transform a $7B industry. Our customizable, easy-to-use producer management and compensation platform is purpose-built to address the insurance industry’s unique challenges.
We help customers break free from legacy constraints, static compensation models, and manual processes—turning commissions into a dynamic revenue driver that unlocks growth.
We’re tackling one of the hardest problems in insurance. If you love solving complex challenges and want to work directly with a founding team building something groundbreaking, let’s chat!
Chestnut is, at its core, a technology company, and we are building the best team! We are looking for engineers who are excited to be part of our early story and who want to build a transformational company. We hire engineers who have a broad set of technical skills, are highly cross-functional, and are eager to solve a wide range of engineering challenges. Our ideal candidate has a strong sense of ownership and enjoys owning projects from inception to scaling it in production. We value people who take pride and ownership in their work and who show an aptitude for learning quickly. As an early employee, you will be working with a nimble team of committed and talented engineers and will have a large, long-term impact on technical design and engineering culture.
We are looking to expand our founding engineering team. Our team is inclusive, transparent, and takes large ownership in driving features from 0 to 1. We are looking for someone who is equally interested in developing robust APIs to stand the test of time as they are in developing innovative solutions to solving tough data modeling or UX challenges.
Federated Computer brings the best open source SaaS products to customers around the world with their integrated offering for customers and open source projects. Our eCommerce platform provides unique advantages for software subscription requirements.\u000A\u000AYou would be joining the engineering team to maintain and develop the eCommerce platform.
About Coreum Coreum is a cutting-edge Layer-1 blockchain platform designed for high performance, security, and scalability. As a rapidly growing innovator in the blockchain space, we are pushing the boundaries of decentralized technologies to empower developers, businesses, and enterprises worldwide. We are looking for a highly skilled Senior Blockchain Developer with expertise in Cosmos SDK and Golang to join our team. If you are passionate about blockchain architecture, decentralized applications, and building scalable solutions, we want to hear from you!
Role Overview
As a Senior Blockchain Developer, you will lead the architecture, development, and maintenance of a new blockchain built on Cosmos SDK and CometBFT (Tendermint). You will work closely with a compact, highly skilled team to deliver scalable blockchain solutions, conceptualize innovative features, and ensure the seamless operation of our Layer-1 network.
Key Responsibilities
●Blockchain Development & Architecture: Design, develop, and maintain a blockchain from scratch using Cosmos SDK and CometBFT (Tendermint).
● Feature Implementation: Conceptualize and implement new features, ensuring an optimal balance between user experience and technical complexity.
● Smart Integrations: Develop and optimize third-party services and applications within the Coreum blockchain ecosystem.
● Performance Optimization: Ensure high scalability, security, and efficiency of the blockchain infrastructure.
● Code Review & Team Leadership: Guide and mentor a small team of 2-3 engineers, conduct code reviews, and enforce best practices in blockchain development.
** Qualifications & Requirements**
● 4+ years of hands-on experience in blockchain technologies.
● 2+ years of experience working with Cosmos SDK and CometBFT (Tendermint).
● 3+ years of development experience using Golang.
● Strong knowledge of blockchain architecture, consensus mechanisms, cryptography, and peer-to-peer networks.
● Proven experience in delivering at least one production-ready blockchain project (testnet or mainnet).
● Ability to write efficient, secure, and maintainable code.
● Experience in designing, implementing, and optimizing blockchain protocols.
● Intermediate or higher proficiency in English for effective communication.
** Nice-to-Have Skills**
● Experience with IBC (Inter-Blockchain Communication Protocol).
● Familiarity with smart contract platforms, Wasm-based smart contracts, or Rust.
● Experience with DeFi protocols, NFTs, or tokenomics design.
● Contributions to open-source blockchain projects.
** Why Join Coreum?** ● Competitive salary ● Fully remote position – work from anywhere in the world. ● Opportunity to be at the forefront of blockchain innovation in a rapidly growing company. ● Collaborate with top-tier blockchain developers and experts in the industry. ● A challenging, dynamic, and fast-paced work environment where your ideas will make an impact.
We’re looking for a Tech Lead – Backend Services to bridge the gap between product vision and development. You’ll mentor engineers, ensure high code quality, and balance fast-paced development with building scalable, reliable systems.
What You’ll Do: * Lead & mentor the backend team, ensuring best practices and high-quality code. * Architect & optimize backend services and cloud infrastructure (AWS/Azure/GCP). * Code & build – contribute hands-on to feature development and infrastructure setup. * Collaborate with product leads to define roadmaps, ETAs, and tech strategies. * Innovate by exploring new tools, driving technical excellence, and improving processes.
What You Bring: * 8+ years in software engineering with a focus on highly scalable Go-based microservices. * Deep knowledge of cloud platforms (AWS), container orchestration (Docker, Kubernetes), and IaC (Terraform, CloudFormation). * Strong database expertise (SQL, NoSQL, distributed systems). * Leadership & project management skills – aligning teams, solving blockers, driving progress.
Perks & Benefits: * Hybrid work (2 remote days/week), 30 vacation days, 3 weeks/year remote work. * Relocation support: visa assistance, relocation bonus, German classes reimbursement. * Well-being: in-house gym, personal trainer, yoga classes, mental health support. * Culture: team events, hackathons, and a dog-friendly office in the city center.
We value diversity and welcome candidates from all backgrounds.