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.
Nira is looking for an experienced Golang architect/senior developer to join our fast-growing engineering team. You will provide technical expertise across design, implementation and support of the Golang components in our high performance data processing and storage area.
If you’re a creative problem-solver and enjoy a fast-paced work environment, then this is a great opportunity for you.
Lead the design and development of scalable and high performing / high resilience backend services written in Golang.
Solution design/architecture in the general area of stream and graph data processing.
Influence design and implementation of integrations which connect Golang components to other parts of Nira’s platform.
Performance engineering to achieve throughput, resilience and enable scaling.
Code standards, code reviews, technical planning/research, testing/QA.
Assist in scoping, estimating, and planning of projects, particularly from a technical architecture perspective.
Assist in leading a squad of 2-5 engineers collaborating to deliver new feature/function bundles.
Mentor and coach other engineers to grow their skills and experience in Golang.
Bachelors degree or equivalent experience, but quite likely a qualification in a quantitative science (computer science, mathematics, engineering, physics, statistics, economics etc).
You’ve got 3+years of experience in designing, building and maintaining enterprise services specifically written in Golang, and the broader Golang ecosystem (eg package and dependency management). If you’ve made Open Source contributions in Golang, that’s a bonus.
You’ve got 5 years of experience with microservices, large scale distributed data processing, message passing and event streaming, AWS and possibly have a functional knowledge of Python
You have high accountability and ownership of your work, but a willingness to collaborate with others to achieve shared goals.
You have a bias towards action. You love to move fast, are self motivated, and a life-long learner.
You care about working on fast-growing products while iterating and sweating the details.
You’re willing to do whatever it takes, even if this means working outside of your role (backend help frontend, frontend help backend, handle customer support, etc).
You’re able to effectively balance speed/quality/tech debt and make engineering decisions that enable speed and quality results.
You’re a product thinker who cares about the customer.
Work From Anywhere - 100% remote/distributed
Flexible Work Schedule
BYO Kit or Company Allowance
Competitive Salary
Unlimited PTO
Medical and Dental (US only)
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TextNow is based around a simple idea: Communication belongs to everyone. We work hard to help people stay connected by offering a solution that makes phone service free. At TextNow, we work together to solve complex and interesting problems that have a positive impact on our customers' lives.
Join us in our mission to help people stay connected with technology that is free (or as close to free as possible.)
TextNow is looking for motivated Site Reliability Engineers (SRE's) to own infrastructure, monitoring, logging, ci/cd, reliability and everything in between!
Other:
#LI-SW1
Benefits:
· Strong work life blend
· Flexible work arrangements (wfh, remote)
· Employee Stock Options
· Unlimited vacation
· Competitive pay and benefits
· Parental leave
· Benefits for both physical and mental well being
Diversity and Inclusion:
At TextNow, our mission is built around inclusion and offering a service for EVERYONE, in an industry that traditionally only caters to the few who have the means to afford it. We believe that diversity of thought and inclusion of others promotes a greater feeling of belonging and higher levels of engagement. We know that if we work together, we can do amazing things, and that our differences are what make our product and company great.
For TextNow Candidates:
The People and Culture team is available to support you through the hiring process by providing reasonable accommodations to help enable a barrier-free interview experience. If you need assistance applying for a role due to a disability or special need, please let us know by completing this form. Once received our Equity, Diversity and Inclusion Specialist will reach out to you and assist with accommodations that you may require.
As a senior software engineer, you will work closely with the CTO, be a critical part of our core team, and have a huge influence over the direction of the company. You will lead projects and work with cross functional teammates to design and implement systems like our API, notifications service, and authentication service while focusing on scalability and performance. We will compensate you well, invest deeply in your development, and do everything we can to make sure this is the single best work experience of your life.
You'll ship. You'll be working on the core product to engineer solutions across multiple modules including payments, messaging, and file-sharing. Whether it's fixing a bug or architecting a new feature, you'll move fast.
You'll be an owner. You'll be the leader of multiple projects and be responsible for their success. This involves closely collaborating with the founders and other engineers, creating engineering tasks, writing documentation, and setting up new services and scalable infrastructure.
You'll balance the short and long term. While knowing the importance of shipping quickly you also know how to craft thoughtful long-term technical strategy. You know when to address tech debt and when to improve infrastructure and processes (testing, code reviews, CI/CD).
You'll help build the team. The first 10 members of a startup dictate the next 100. You'll help interview and recruit more talented engineers.
You'll learn about startups. Aside from your core work, you'll have the opportunity to get involved in other areas - marketing, growth, ops, etc.
You have good values. You understand why diversity matters and make others feel like they belong. You're low ego and make the workplace more fun for everyone.
You're entrepreneurial. You are comfortable with ambiguity and thrive in fast-pasted environments. You've likely worked at startups before or might want to start one in the future.
You're hardworking. You understand that building a category-defining company requires people that work smart and that also work hard.
You're experienced. You have 5+ years experience working on production software and have worked across the stack. You are comfortable with React, Typescript, Golang and NoSQL databases (Mongo, Dyanmo, etc.)
You know what matters. We believe your education is irrelevant; we only care that you can build great products. Likewise, in your work you're not religious about any one technology and care more about making progress.
You're a systems thinker. You don't identify as a particular (frontend/backend/etc.) engineer but are more interested in solving problems holistically.
You're resourceful. You are a fast learner and have a “get things done” mentality. If you don't understand something you quickly determine what to do to push forward.
You put users first. You think critically about the implications of what you're building. You're constantly putting yourself in shoes of the users and push back when necessary.
Mobile/Webapp: React-Native/React + Redux and Typescript
Backend: Golang and DynamoDB.
AWS Serverless architecture with Lambda, API Gateway, and Cognito.
Custom design system based on MaterialUI.
Bespoke websocket service to connect frontend and backend in real-time.
Tools: GitHub, Linear, Slack, Notion, Figma, Retool.
75% of our nation's freight is moved by truck and the underlying payments systems are fundamentally broken, relying on unreliable legacy technology from the 1980s. Join ONRAMP to build payments infrastructure that's purpose-built for transportation, tackling a massive opportunity in freight payments and creating a more efficient future.
ONRAMP is backed by top supply chain & fintech VC firms, with executives who have led teams at AmEx and Wex. You will find a team of individuals bringing their best to the table and working together openly to challenge the highly profitable, slow-moving incumbents that have dominated for decades.
We’re looking for a highly skilled engineer with expertise in payment systems delivered with GraphQL and REST APIs, Golang, and Kubernetes.
Design and implement solutions for ONRAMP APIs, payment system, reporting, CI/CD, observability, and infrastructure.
Maintain system resilience and stability. Resolve incidents.
Provide technical leadership to other engineers on the team, through design review, mentoring, and project supervision.
Collaborate with customers and partners on API integrations.
10+ years of experience as a software engineer, with significant responsibility.
Experience designing and implementing payment systems, or similar real-time transactional systems with stability and reporting requirements.
Experience delivering incremental value in a rapidly evolving environment. Comfortable with ambiguity and changing requirements.
Experience with Go, Postgres, Istio, and scalable infrastructure (such as Kubernetes, Serverless, Lambda) and cloud providers (GCP preferred). Knowledge of API authentication and access mechanisms (such as OAuth, JWT).
Ability to effectively communicate with customers and partners, demonstrating clarity, humility, and precision.
Low ego and excited to work across various functions to help move the business forward.
Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
Based in New York City, or willing to relocate.
Legally qualified to work in the US.
Health, dental, and vision insurance. Meaningful equity in an industry-changing startup. 401k plan. ONRAMP is an equal opportunity employer and values diversity at our company. We do not discriminate based on race, color, national origin, ethnicity, religion or religious belief, sex, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, military or veteran status, disability, or other applicable legally protected characteristics.
As an early Platform Engineer at Watchtower, you’ll enable us to deliver our platform reliably, securely, and at massive scale. You’ll help architect low latency, real-time microservices that process & detect sensitive data at scale.
Responsibilities:
Building highly-available and secure authentication and API services Maintaining and evolving mission-critical internal databases and services Optimizing and operating high volume auto-scaling streaming data services Instrumenting streaming data services for visibility into utilization per customer
Qualifications:
Expertise in one or more systems/high-level programming language (e.g. Go, Rust, Python, Java, C++) and the eagerness to learn more. Eagerness to wear multiple hats in a startup environment Experience running scalable (thousands of RPS) and reliable (five 9’s) systems. Experience with developing complex software systems scaling to substantial data volumes or millions of users with production quality deployment, monitoring and reliability. Experience with large-scale distributed storage and database systems (SQL or NoSQL, e.g. Cassandra, CockroachDB, Spanner) Ability to decompose complex business problems and lead a team in solving them Data Processing - experience with building and maintaining large scale and/or real-time complex data processing pipelines using Kafka, Hadoop, Hive, Storm, or Zookeeper
Tools We Use:
Go, React, Python, Cassandra, Redis, Terraform, Docker, Kubernetes, AWS (SQS, S3, Redshift, RDS, EKS), Kafka, Envoy
About Watchtower:
Watchtower is a cybersecurity startup dedicated to helping enterprises secure and manage their sensitive data. As a leading enterprise technology company, our product affects the personal data that people entrust businesses to store & process with care every day. Critical data in the modern enterprise is often sprayed across a broad set of cloud systems (e.g. SaaS & data infrastructure), and it’s a herculean task for security teams to monitor, manage, and protect this highly sensitive data. Via machine learning, our product makes it easy for companies to discover, classify, and protect this sensitive data across their cloud footprint - such as their corporate SaaS, data infrastructure, and APIs. In doing so, we prevent data leakage, provide unprecedented data visibility & protection across the cloud, and enable compliance. We're a technology startup based in San Francisco and Palo Alto, well-funded by leading institutional investors with deep expertise in the cybersecurity industry. Learn more at our website www.watchtower.ai or by reaching out via email at careers@watchtower.ai.
Sologenic is disrupting the asset trading industry: Tokenized Securities, Crypto Assets \u0026 NFTs. Join the team and let\'s make the future of DeFi. (sologenic.org and sologenic.com)\u000A\u000ASologenic is also developing \"Coreum\" a new Layer-1 Blockchain. The team is currently looking to hire 3 Golang Developers. (www.coreum.com)\u000A\u000AResponsibilities\u000A* Take part in software architecture, lead development (from scratch) and maintenance of a new Cosmos SDK \u0026 CometBFT (Tendermint) based blockchain\u000A* Collaborate with the team to create third-party services rooted in the developed blockchain, enhancing core functionalities.\u000A* Conceptualize and develop innovative features, ensuring a balance between user experience and technical intricacies.\u000A* Perform code reviews and lead small development team (2-3 engineers)\u000A\u000ARequired Skills\u000A* 4+ years of experience in blockchain technologies\u000A* 2+ years of experience with cosmos SDK \u0026 CometBFT (Tendermint)\u000A* 3+ years of development experience using Golang\u000A* Comprehensive knowledge in blockchain architecture, design, development, and maintenance.\u000A* Proven track record with at least one production-ready blockchain project (testnet or mainnet phase).\u000A* Intermediate+ proficiency in English.\u000A\u000AAdditional Preferred Skills\u000A* Experience with Ethereum \u0026 XRP ledger\u000A* Basic knowledge in trading\u000A\u000AThis is a remote job.\u000A\u000APerks \u0026 Benefits\u000A* Crypto Bonus\u000A* Summits and Events Tickets\u000A\u000AInterview Process\u000AVideo Call\u000A
Coreum, a leading innovator in the Layer-1 blockchain domain, is actively seeking a skilled Blockchain Developer proficient in Golang and Cosmos SDK.
Key Responsibilities: - Software Architecture Development: Spearhead the architecture, development (from scratch), and maintenance of a new blockchain based on Cosmos SDK, CometBFT (Tendermint). - Development: Collaborate with the team to create third-party services rooted in the developed blockchain, enhancing core functionalities. - Feature Ideation: Conceptualize and develop innovative features, ensuring a balance between user experience and technical intricacies. - Team Leadership: Conduct code reviews and guide a compact development team of 2-3 engineers.
This job posting is no longer available
About The Role
We are looking for a top notch Lead Golang developer who possesses a strong understanding of how best to leverage and exploit the language’s unique paradigms, idioms, and syntax.
Your primary focus will be on developing Go packages and programs that are scalable and maintainable. You will ensure that these Go packages and programs are well documented and has a reasonable test coverage.
You will coordinate with the rest of the team working on different layers of the infrastructure. A commitment to collaborative problem solving, sophisticated design, and quality product is essential.
Your Duties & Responsibilities
Your skills, experience, and qualifications
Our consultants are experts in strategy, user experience, architecture, engineering, and delivery management. We combine knowledge of the latest trends in technology with deep domain expertise to deliver innovative solutions with accelerated time-to-market.
We have office hubs in Midtown Manhattan, Washington DC, London, Budapest, New Delhi and Sydney.