Senior Software Engineer (Join with equity @ $5m Seed Round)
On site
London, United Kingdom
$ 190,000 / year
Full Time
22-04-2025
Job Specifications
Rhinestone has raised $5m at Seed Round, led by: 1kx, with further support from CoinFund, Lattice, Heartcore, Circle Ventures, and more, to revolutionize User Experience in Web3 / Blockchain with Smart Accounts to enable mass adoption. Smart Accounts are the bedrock for solving crypto’s UX challenges, from easy ones like gas abstraction and key recovery to more complex ones like Ethereum’s fragmented liquidity.
Join as employee #8 to build Smart Account infrastructure and tooling, enabling developers to build powerful onchain products with web2-like UX. Our intent-powered infrastructure allows seamless onchain actions regardless of the chain the user is transacting on. Our open Smart Account module library gives developers maximum flexibility to build the wallet stack they need for their users.We are building at the bleeding edge of the crypto wallet tech stack.
We built the first ERC-4337-compliant Modular Smart Account, the precursor to ERC-7579. This is the dominant technical standard for Smart Accounts, which we lead and use as a foundational layer to permissionless wallet innovation and interoperability for blockchains, cryptocurrencies, infrastructure, etc.
Roles and Responsibilities:
We’re looking for a Senior Engineer to play a foundational role in developing our offchain tech stack or infrastructure. At a high level, you will:
Work closely with the team to ship new products and develop solutions for challenging technical problems.
Deliver high-quality code from concept until production.
Dive into the code of other team members to provide thorough reviews and contributions outside of your responsibilities.
You'll be working on what suits your strengths to ultimately build various components that interact with EVM-based smart contracts, such as:
Developer SDKs that are used in frontend and backend applications.
Offchain services that interact with smart accounts.
Frontend applications that are used directly by end users.
Developer-facing applications, such as developer hubs and dashboards.
Concurrent backend systems and smart contract systems
Orchestration layer.
Relevant Experience:
Our engineers have strong blockchain foundations to be able to work freely in a small and scrappy team. This might look like:
3+ years of relevant experience with blockchain technology (EVM-focused).
3+ years of experience writing Typescript/Javascript for production environments
Experience working with crypto wallets (preferably smart accounts), bridging technologies, blockchain nodes, relayer or intent-based systems, and an understanding of Layer 2 solutions and their integration into the application layer.
Ability to balance shipping quickly with building a stable infrastructure.
You are also:
A self-starter, problem-solving from the root cause, able to break down complex problems into simpler components and chart the phases of getting to a stable and scalable solution.
A hustler mentality: founding a company, working in startups (pre-series A), or building side projects (open source is a plus).
Able to be a thought leader and highly collaborative to drive toward 10x outcomes.
This role requires versatility, working across a traditional software stack and integrating with smart contracts on EVM chains. If you love solving complex problems at the intersection of scalability, UX, and trustlessness, we’d love to speak with you! This is an opportunity for you to leave a mark on the broader ecosystem and become a true domain expert.
Our Tech Stack:
Onchain: Solidity (Foundry)
Offchain backend: Rust, Node, Typescript, and various other JS/TS-based frameworks
Offchain frontend: NextJS, Typescript, and Tailwind
Location:
London, UK
What We Offer:
Meaningful equity as Employee #8, with entry at our $5m Seed Round
Opportunity to build and own complex parts of tech stack end-to-end
Large influence over Rhinestone's product development, growth, launches, etc.
Flexible working hours and holidays
Regular team meetups, offsites, and conferences
A chance to work with the leading minds in account abstraction and the broader web3 space
Rhinestone employs a meritocratic mindset when hiring. Regardless of background, gender identity, age, religion, etc., we assess candidates by their ability to contribute, collaborate, and deliver excellent work.
About the Company
Rhinestone is an infrastructure and tooling provider for developers building on Smart Accounts. We make it simple for developers to build self-custodial Web3 applications with seamless UX and powerful Web2-like features. We provide one SDK and API for all your onchain account and crosschain needs—deploy and customize smart accounts for your users, deliver frictionless onboarding, abstract away gas fees, transact on any chain instantly, and more. Know more
Related Jobs
- Company Name
- UserTesting
- Job Title
- Software Engineer Intern
- Job Description
- We’re UserTesting, a leader in experience research and insights; we believe the path to human understanding and great experiences start with a shared understanding—seeing and hearing how another person engages with the world around them and taking in their perspective. Working at UserTesting, you will be empowered to help organizations discover the human side of business–transforming how they work, collaborate, innovate, and bring new products and experiences to market. This is what inspires us, and it’s how we enable companies to connect with their audiences naturally and organically through an experience that is uniquely, and intentionally human. A trusted company by top brands for 15+ years, UserTesting, recently merged with UserZoom, has over 3,400 customers in 50 countries, including 75 of the Fortune 100 companies. Joining our team means being part of a passionate group focused on transforming how companies learn from and understand their customers. Come join us and help us build the engine for human understanding. The Opportunity As a Software Engineering Intern, you’ll join our Audiences and Networks team, which plays a vital role in helping our customers connect with the right participants—fast. Our mission is to simplify access to diverse, global perspectives, whether that’s through the UserTesting Contributor Network, the customer’s own networks, or other integrated sources. In this full-stack internship role, you’ll gain hands-on experience working with both front-end and back-end technologies. With guidance from our engineering team, you’ll contribute to building scalable, microservice-based features and be empowered to grow your skills in a dynamic, real-world environment. The Team You’ll be part of a collaborative, distributed software engineering team focused on the Networks and Audience offering of the UserTesting product. Our team values transparency, continuous learning, diligence and team-work to make impactful improvements to our platform’s value, performance and quality. What We’re Looking For Interest in both front-end and back-end development (modern JavaScript, TypeScript, Node.js) Confidence working with dynamic and functional programming languages Curiosity about microservices, event-driven architectures, and domain-driven design Awareness of software quality and testing best practices Strong problem-solving and analytical thinking skills Effective verbal and written communication skills in English Reliable time management and the ability to meet deadlines Enthusiasm for user experience and attention to detail Eagerness to learn in a fast-paced environment A collaborative, open-minded approach to software engineering Don’t meet every single requirement but excited about the role? We encourage you to apply! Research shows us that certain demographics are less likely to apply unless they meet 100% of the requirements, but you may be just the right candidate for this or other roles. We know that diverse perspectives foster the innovation we need to be successful, and we are committed to building a team that encompasses a variety of backgrounds, experiences, and skills. Application Process Meet with a Recruiter Meet the Hiring Manager Participate in a Skill Interview and Stakeholder Interview Offer Stage UserTesting is an Equal Opportunity Employer and a participant in the U.S. Federal E-Verify program. Women, minorities, individuals with disabilities and protected veterans are encouraged to apply. We welcome people of different backgrounds, experiences, abilities and perspectives. UserTesting will consider qualified applicants with criminal histories in a manner consistent with the San Francisco Fair Chance Ordinance, as applicable.
- Company Name
- Palladium Digital
- Job Title
- Lead Software Engineer
- Job Description
- Palladium - Lead Software Engineer Location: London-based office, with support for remote and flexible working Reporting to: Technology Director Salary: GBP 80,000 - GBP 90,000 (dependent on experience and level of seniority) Experience: 8 to 10 years Overview At Palladium, we specialise in driving digital business transformation and delivering innovative solutions that create value and accelerate growth across a diverse range of industries and asset classes. We are seeking an experienced Lead Software Engineer to join our team. This role is ideal for someone who enjoys the challenge of creating innovative software solutions for businesses at all stages, from start-ups to large enterprises. At Palladium, we place customer experience at the heart of everything we do. The ideal candidate will have a strong affinity for product and service design, coupled with a deep understanding of how technology can drive positive behavioural change and deliver exceptional user experiences. Requirements As Lead Software Engineer at Palladium you will be responsible for: Lead a team of local and off-shore developers, delivering a variety of projects for external clients and our own internal SaaS platform. Design, build, and maintain efficient, reusable, and reliable applications using a variety of technologies including React, GraphQL, Ruby and postgres Contribute to your team’s delivery with hands on work - from architectural design, to implementation, reviews & testing and deployment & operations Improve our technical delivery process, enabling projects to be delivered at a higher standard with less effort. Mentor junior developers and help grow their capability and capacity What We Need From You Autonomous, proactive technical leader. Great verbal and written communication skills and the ability to explain complex ideas in a simple way to non-engineering teammates Strong experience of designing and building web applications in cloud. Hands on Experience with Ruby on Rails, React, GraphQL, postgres. Strong knowledge of SDLC, Git based versioning systems and CI/CD, automated functional and integration tests. Good understanding of Agile methodologies including Scrum. Experience: 8-10 years. Benefits A diverse team of supportive and passionate people with experience, set in a smaller bespoke consultancy atmosphere Flat org structure and skills/capabilities based project resourcing Sociable, inclusive, friendly, supportive team culture Annual performance based bonus Company pension scheme Bike to Work scheme Equal Opportunities Palladium is committed to promoting equal opportunities in employment. The success of Palladium depends upon our ability to recognise and leverage the capabilities of each of our employees. With this in mind, Palladium is committed to providing equality and fairness for all recruitment applicants and employees and not discriminating against anyone because of their gender (including sex, marital status and gender reassignment), race (including ethnic origin, colour, nationality and national origin), disability, sexual orientation, religion, belief or age. In addition, Palladium will not discriminate against anyone who is associated with another individual who is protected under equality legislation. We oppose all forms of unlawful and unfair discrimination All employees are treated fairly and with respect. Selection for employment, promotion, training or any other benefits is done on the basis of aptitude and ability. Palladium is also committed to preventing discrimination of any type against its employees by third parties such as suppliers, clients and the general public. The responsibility for upholding this commitment is shared by, and is intended to benefit, every employee.
- Company Name
- TieTalent
- Job Title
- Software Engineer in Test (Automation Focus)
- Job Description
- About Tech Stack: JavaScript/TypeScript, Cypress, Playwright, REST APIs Love breaking things? Even more passionate about making sure they don't break in the first place? We're looking for a Software Engineer in Test who lives and breathes automation. You'll be embedded in our dev teams, building robust test suites, catching bugs before users do, and ensuring every deploy is smooth and safe. What You'll Do Build and maintain scalable test automation frameworks Develop and execute functional, regression, and integration tests Drive CI/CD test automation strategies Collaborate with devs, QA, and product to bake quality into everything What You Bring 5+ years' experience in test automation Proficiency in scripting automated tests (e.g., Cypress, Playwright) Strong understanding of software development lifecycle Good grasp of API testing, mocking/stubbing, and CI pipelines Nice-to-haves Performance or load testing experience 42369MS INDMANS Nice-to-have skills JavaScript TypeScript Cypress API Testing Test Automation Performance Testing Load Testing Manchester, England Work experience QA QA Test Automation Languages English
- Company Name
- Orgvue
- Job Title
- Senior Software Engineer
- Job Description
- Orgvue is an organisational design and planning platform that empowers your business to transform its workforce by understanding the work people do and the skills they have. Our platform connects strategy to structure, providing clarity of vision, so you can build a more adaptable, better performing organisation that thrives in a constantly changing world of work. The world’s largest and best-known enterprises and consulting firms use Orgvue to visualise and model current and future states of the organisation and make faster, more informed decisions. The company is headquartered in London, with offices in Philadelphia, The Hague, Toronto, and Sydney. We have an opening to join one of our product development teams, contributing to the continued success of our custom technical solutions and SaaS products. It will be possible to work at all stages of the development lifecycle including design, implementation and testing, as well as providing feedback to evolve our development techniques. Working in one of our development teams, you will develop solutions for our SaaS products. As part of the product development capability here at Orgvue, we make use of emerging technologies bringing many opportunities for learning and innovation. We are seeking an engineer with strong software development skills and experience developing cloud based microservices to join our services team which enables our SaaS products. As a Software Engineer, You Will Collaborate within a balanced, cross-functional team to deliver exceptional software. Be supported by best-in-class AI tools to augment your coding experience, enhancing productivity, code quality, and innovation. Actively practice continuous integration and deployment, proactively contributing to improvements in processes and tooling. Write robust tests at every level of the testing pyramid, ensuring confidence in the software's reliability with a rapid feedback loop. Thrive in a highly autonomous environment, applying your skills across the full stack, expanding your expertise, and delivering exceptional outcomes. Work closely with the product manager to clarify expectations, define acceptance criteria, and translate customer needs into impactful solutions. Contribute directly to an exciting product vision aimed at enabling better organizational decision-making at scale, delivering material value to customers. Join us during an exciting, transformative phase, helping to simplify our platform, streamline our architecture, and continuously enhance our engineering practices. Requirements Desired Skills & Experience: Excellent problem-solving and analytical skills, with experience applying modern software design patterns. We work full stack and so proficiency with JavaScript (ES6+), React and Typescript along with a good understanding of (or willingness to learn) HTML and CSS is a big plus. Familiarity with modern architectural patterns such as micro-frontends and backend-for-frontend strategies. Ability to write, maintain, test and deploy scalable backend services that seamlessly integrate with the application to provide an exceptional experience for our customers. A commitment to code and overall product quality, including familiarity with test automation, TDD, or BDD methodologies. Understanding of DevOps tools, processes, and concepts such as Docker, Kubernetes, CI/CD pipelines, and observability. Strong product development skills and customer empathy to drive how you solve problems for our users. Benefits Hybrid working - 1+ days a week in the London office Wellbeing: Sanctus Coaching, Virtual fitness sessions, Wellbeing webinars, Annual Wellbeing day Subsidised Gym Membership Private Medical Insurance (including Dental and Vision) and Life Assurance 25 days holiday (increasing to 30 days at a rate of 1 extra day per year) Summer Fridays (half-day Fridays for the months of July and August) Employer pension contribution of 5% of your gross salary, if you contribute a minimum of 3% Season ticket Loan Cycle to Work Scheme Annual Discretionary Bonus 'Here at Orgvue we promote individualism and a diverse workforce to build on our future success'