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How would you steam live audio traffic across multiple services into a machine learning model? What is the memory consumption of a service streaming data with maximum network utilization? How would you handle images send to a GraphQL endpoint?
At Corti, we have proven a life saving technology that augments emergency medical dispatchers with machine learning. We envision a near future where all emergency dispatchers around the globe are augmented by our intelligence. We are proud to say that the engineers at Corti are saving lives. A life saving engineer is dedicated, seeks for real purpose and is proud to the extent of obsession. We don't need the ninjas and wizards, we need people who own every aspect of their work at any time.
To get there, we need to solve problems that go way beyond picking the right text editor. The engineering team at Corti owns the entire stack, from live audio capture, real time traffic processing and classification using machine learning models to the hardware on the dispatcher desk, the servers in the basement and the right cloud strategy.
We pick our team members carefully so we can maintain our culture of excellence. We look for complementing skills and characters and care less about your degree, certifications and experience. You can't hide behind your screen as we are a team that believes in collaboration across all the departments at Corti.
You can solve problems and you can proof it to us. You are better at estimating memory usage than remembering the exact implementation of quicksort. A new problem stimulates your creativity rather than your hippocampus. Working cross domain is a bonus for you and you are eager to widen your horizon.
While we have a core set of tools, programming languages and concepts we work with, we will definitely going to ask you to learn something new. Never worked with machine learning? This will change. Writing a parser for a network protocol? It will happen. Transitioning a customer to the cloud? The sky isn't the limit for us.
We are looking for someone experienced in Golang to support our backend team. You would be mostly working on the REST and GraphQL API and the integration with the models from the machine learning team.
This job posting is no longer available
At Elastic, we have a simple goal: to solve the world's data problems with products that delight and inspire. As the company behind the popular open source projects — Elasticsearch, Kibana, Logstash, and Beats — we help people around the world do great things with their data. From stock quotes to Twitter streams, Apache logs to WordPress blogs, our products are extending what's possible with data, delivering on the promise that good things come from connecting the dots. The Elastic family unites employees across 30+ countries into one coherent team, while the broader community spans across over 100 countries.
The Beats platform is the basis for building open source shippers that collect all kinds of operational data, store it in Elasticsearch, and visualize it with Kibana. They collect data from edge servers, and are used to power application monitoring, infrastructure monitoring, and network monitoring. We currently have five official Beats: Filebeat for gathering logs, Packetbeat for network traffic, Metricbeat for metrics, Winlogbeat for Windows event logs, Heartbeat for uptime monitoring, and Auditbeat for audit data. In addition, the open-source community has created over 40 Beats, collecting data from all sorts of sources.
All current Beats are written in Golang.
As part of the Beats team, you will be responsible for maintaining the official Beats, for creating new ones, as well as for supporting the community around Beats. The team is diverse and distributed across the world, and collaborates on daily basis over Github, Zoom, and Slack.
Skills you will bring along
Additional Information:
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.
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.*
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.
Your missionOwn end to end the backend of Bitpanda's white label SaaS solution that is live at 15 financial instutions and helping over 20 million people generate their own wealth. You'll handle a range of APIs and services and ensure the timely and efficient delivery of high-quality, high performance code
**What you’ll do: **
Design and develop scalable, resilient, message-driven services using Write clean and correct code with high test coverage and extensive testing (Unit, Integration, End-to-End, Functional) Collaborate with other technical minds to build reliable products, research concepts and influence new ideas for designing, building and testing Build a secure and scalable environment handling millions of events per day Contribute to the development of a great microservices architecture that will change the way people invest their wealth**
Who you are: Strong knowledge and experience in software development using Golang Experience working with both relational and non-relational databases In-depth knowledge of REST APIs, GraphQL and gRPC Practical expertise in using message-oriented middleware (Kafka) Familiarity with AWS services, including EKS, DynamoDB and Secret Manager
What’s in it for you\u000A\u000A* We\\'re proud of our flexible working model that includes 2 days (minimum) working from the local Hub, plus 60 Work From Anywhere days annually\u000A* Total compensation package including participation in our Bitpanda stock option plan\u000A* Competitive benefits programs and policies shaped by our flexibility-first philosophy \u000A* Exclusive premiums when trading on Bitpanda\u000A* Company-wide and team events — both in-person and virtually!\u000A* Bitpanda swag to keep you living the brand
**Only 3 hours total of interviews. **\u000A1. Meet your Talent Acqusition Partner (30 minutes)\u000A2. Meet your Director (1 hour)\u000A3. Meet your technical team (1 hour)\u000A4. Meet a solution lead. (30 minutes)\u000A\u000ASpread over 2-3 weeks.
Apply ⎘ Copy Link ↗ Visit Link*Please note that we can only consider candidates in the US within EST, CST, MST time zones.
About Rialtic
Rialtic is an enterprise software platform empowering health insurers and healthcare providers to run their most critical business functions. Founded in 2020 and backed by leading investors including Oak HC/FT, F-Prime Capital, Health Velocity Capital and Noro-Moseley Partners, Rialtic's best-in-class payment accuracy product brings programs in-house and helps health insurance companies gain total control over processes that have been managed by disparate and misaligned vendors. Currently working with leading healthcare insurers and providers, we are tackling a $1 trillion problem to reduce costs, increase efficiency and improve quality of care. For more information, please visit www.rialtic.io.
The Role
We seek a motivated and curious Staff Engineer with extensive background experience in cloud-native distributed systems who hates manual processes and feels compelled to build tools to automate them away. As a key contributor to our core healthcare claims processing platform team and senior member of the technical staff, you will play a vital role in building solutions to improve workflows across multiple engineering teams, supporting client evaluations and implementations, live system support, site reliability, system testing and monitoring, and logging/alerting integrations. This position requires a customer-first, quality-oriented mindset. We are a data-driven organization, so instrumentation and measurement are how we determine the success or failure of our engineering efforts.
We tackle challenges that are common to healthcare companies and healthcare data, but we do it using a modern, cloud-native stack. Our core processing platform and related services are written in Go, while our clinical and financial analytics components that run inside the platform are written in Python. This is a back-end systems focused role: we won’t ask you to write Javascript (but being able to read it never hurts, and we have many APIs and interfaces between us, our clients, and our own systems). Our ability to parse, validate, process, write code against, and manage enormous volumes of data while performing complex analyses quickly and accurately is critical to our success.
If that sounds like a fun challenge, then you should apply for this position!
You will
During any given week in this role, you might:
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, RocksDB, Raft 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).
To get a feel for what we do you can have a look at our API tour: https://getstream.io/chat/get_started/
Salary range is around 80k Euro for entry level roles up to 160k for staff/lead level.
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)
This role requires at least 4 years of backend engineering experience. We’re looking with someone with experience in 2 out of these 3 areas:
Experience with Go Scalability/database/Redis experience Experience with SDK development/ React/Swift/Compose etc.
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 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
Swarm is a system of peer-to-peer networked nodes for a decentralised storage and communication service.
Swarm could shape the future towards a self-sovereign global society and permissionless open markets. On Swarm, applications run autonomously yet securely in a planetary-scale deployment and execution environment.
Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm Network. Bee provides low-level constructs for file storage, feeds, key-value stores and untraceable communication, through solid, well-tested code delivered in an agile manner.
Key technologies are Go, libp2p, protobuf, leveldb, and go-ethereum, as well as various cryptographic libraries.
Should you be interested in the position, please send your CV and GitHub repo to talent@ethswarm.org.
Introduction
ChainSafe is a leading blockchain research and development firm specializing in infrastructure solutions for the decentralized web. Alongside its contributions to significant ecosystems such as Ethereum, Polkadot, Filecoin, Mina, and more, ChainSafe creates solutions for developers and teams across the web3 space utilizing our expertise in bridging, gaming, NFTs, and decentralized storage. As part of the mission to build innovative products for users and better tooling for developers, ChainSafe embodies an open-source and community-oriented ethos.
To learn more about ChainSafe, look at our Discord, GitHub, and website.
Here’s what you need to know before reading on:
Our progressive tech stack includes Go, Rust, and TypeScript We spearhead ecosystem projects like Lodestar, Web3.js, Forest, Mina-rs, and Gossamer We are global, remote-friendly, and open to contractors You’ll form part of the Sygma Engineering team, our bridging protocol At Sygma we believe that cross-chain interoperability is the fundamental enabler for the next wave of growth in the blockchain industry. Sygma will empower builders to create streamlined experiences where users are not confined to one ecosystem. By enabling elaborate cross-chain functionality and putting most of the steps under the hood, Sygma will enable smooth, web2-like user experiences. For more information about Sygma please visit buildwithsygma.com
At ChainSafe, you’ll be part of a team that believes in the community's vital importance and contributes to advancing humanity with open-source and decentralized technology.
About the role
As our Senior BlockOps engineer for Sygma, our cross-chain interoperability protocol, you will play a vital role in our dedicated BlockOps team, defining and implementing best-practice strategies and guides to manage and optimize our infrastructure.
The BlockOps team supports the critical systems, services, and tooling at the foundation of Sygma’s mission, to abstract away all the complexities of cross-chain interoperability to enable users to ‘deposit from anywhere’. We enable Sygma’s engineers to design, develop, and operate services quickly, safely, securely, and reliably. BlockOps teams build and maintain the platforms critical to the existence of Sygma.
Your expertise will undoubtedly contribute to the sophistication of blockchain applications and redefine the boundaries of what's possible within this emerging technological sphere. All work across Sygma will be open-source, ensuring expansive opportunities for deep contribution and collaborative efforts across various web3 blockchains and ecosystems.
Responsibilities
What you will be doing
Ensure reliable operation of the company’s distributed Relayer nodes operations across various blockchain networks (EVM, Substrate, Cosmos SDK) while adhering to internal SLAs and committed KPIs Design and implement procedures related to Sygma’s Relayer node operations (deployment and upgrade, incident response, and key management) Build monitoring and observability for various Sygma services including a distributed set of relayers and various blockchain full nodes. Provide training and guidance for other members of the infrastructure team, ensuring round-the-clock node operation and incident response. Document and communicate technical details via open-source documentation Collaborate with various internal teams and the wider community to build, expand, and scale Sygma’s architecture, by tapping into new trends and opportunities highlighted by internal data, blockchain research, and the wider blockchain ecosystem Requirements Solid dev. experience with Golang Experience working with AWS services Demonstrable experience with modern Infrastructure as Code (IaC) tools (Terraform, Helm, Ansible, etc), automating deployment, and best CI/CD practices and tools. Experience with monitoring and alerting tools (DataDog, Grafana, Prometheus, etc.) Experience implementing distributed tracing, monitoring, and logging systems using OpenTelemetry Protocol Experience building and participating in incident response systems (PagerDuty, etc) and handling the emergency response to production environment failures. In-depth knowledge of distributed systems and blockchain technology. Excellent communication skills with the ability to document and convey technical details clearly Ability to work autonomously as well as with the wider team As a plus: TypeScript, Solidity, or Rust is a big plus Experience with specifying, procuring, and setting up infrastructures for Blockchain validator nodes, and managing them across several blockchain networks. Experience automating network deployment and testing of SmartContracts with various tools (Truffle, HardHat, Foundry, Anvil) Understanding at least two of the following domains - Web Security, Web3 Security, Cloud Security, Systems Security, and Applied Cryptography. Hiring Steps Selected candidates will be invited to a 30–to–45–minute screening call with one of our tech recruiters Next, candidates will be invited to a 60-minute values interview with one of our team members Technical 60-minute interview with one of our engineers. Then, candidates will be asked to complete a technical task in under 10-15 hours. Your time and expertise demonstrated in the work test challenge will be compensated upon completion. Your time and expertise demonstrated in the work test challenge will be compensated After the completion of the test assignment call with Engineering team to discuss the results, for 60 minutes. Lastly, candidates will be invited to a 60-minute interview with the hiring team members
Why Join ChainSafe
Founded by developers for developers, ChainSafe is a remote-first company with an international team. We continue to provide opportunities for personal and professional growth, value autonomy and responsibility, have a results-driven environment, and offer flexible work hours.
We care deeply about our values and look for these attributes in every new team member. In addition, we recognize the benefits of cultivating a diverse team and aspire to embed respect for all people into our culture. We encourage women, the LGBTQIA+ community, people of colour, and members of any other group underrepresented in the blockchain space (or tech in general) to apply.
How to Apply
Please fill out the Greenhouse application form below and ensure that you attach your resume and link your Github/Gitlab profile or any software project you have contributed to (if applicable).