May 30, 2026
Senior Frontend Engineer - Internal Tools
Senior • On-site
New York, NY
Who We Are:
Alpaca is a US-headquartered self-clearing broker-dealer and brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more. Our recent Series D funding round brought our total investment to over $320 million, fueling our ambitious vision.
Amongst our subsidiaries, Alpaca is a licensed financial services company, serving hundreds of financial institutions across 40 countries with our institutional-grade APIs. This includes broker-dealers, investment advisors, wealth managers, hedge funds, and crypto exchanges, totalling over 9 million brokerage accounts.
Our global team is a diverse group of experienced engineers, traders, and brokerage professionals who are working to achieve our mission of opening financial services to everyone on the planet. We're deeply committed to open-source contributions and fostering a vibrant community, continuously enhancing our award-winning, developer-friendly API and the robust infrastructure behind it.
Alpaca is proudly backed by top-tier global investors, including Portage Ventures, Spark Capital, Tribe Capital, Social Leverage, Horizons Ventures, Unbound, SBI Group, Derayah Financial, Elefund, and Y Combinator.
Our Team Members:
We're a dynamic team of 380+ globally distributed members who thrive working from our favorite places around the world, with teammates spanning the USA, Canada, Japan, Hungary, Nigeria, Brazil, the UK, and beyond!
We're searching for passionate individuals eager to contribute to Alpaca's rapid growth. If you align with our core values—Stay Curious, Have Empathy, and Be Accountable—and are ready to make a significant impact, we encourage you to apply.
Your Role:
As a Senior Frontend Engineer, you will be responsible for designing, implementing, and maintaining frontend applications that form the foundation of user experience at Alpaca and empower millions of users who trade billions of dollars worth of assets.
As part of a focused and specialized engineering team, you will be responsible for the user experience and product development for Internal Tools customers, encompassing both the frontend trading dashboards and backend systems that power Internal Tools product features like elite, high-yield cash, paper accounts, and more. Working closely with our users and internal stakeholders, we specialize in delivering high-quality end-to-end solutions across the full suite of frontend and backend systems at Alpaca.
We're looking for someone who brings deep frontend expertise, enjoys mentoring others, and thrives in a culture of curiosity and continuous improvement. Working collaboratively in a cross-functional team with a keen attention to detail, you'll build eleant and seamless user experiences with a focus on polish, performance, responsiveness, and accessibility.
Things You Get To Do:
- Play a pivotal role in architecting and developing web and mobile applications that push the boundaries of technology
- Work closely with cross-functional teams to create responsive, performant, and intuitive user interfaces that delight our customers
- Own the delivery of high-visibility features/projects, from design to deployment
- Mentor peers and influence the technical strategy of our company
Who You Are (Must-Haves):
- 5+ years of experience in frontend development with TypeScript/React
- 2+ years of experience using a modern systems programming language like Golang, C++, or Rust
- Excellent communication and collaboration skills
- Ability to translate product mockups and designs into fully realized user interfaces
- Proficient in HTML and CSS frameworks such as TailwindCSS
- Passionate about creating intuitive and performance user interfaces
- Experience with REST APIs and WebSockets best practices
- Experience with relational databases and SQL
- Track record of setting or influencing frontend best practices
- Attention to detail and an appreciation for design aesthetics
Who You Might Be (Nice-to-Haves):
- Algo trading experience (either professional or personal)
- Experience with major cloud platforms (we primarily use GCP)
- Experience or understanding of financial markets
- Experience working at a startup
- Experience working remotely
How We Take Care of You:
- Competitive Salary & Stock Options
- Health Benefits
- New Hire Home-Office Setup: One-time USD $500
- Monthly Stipend: USD $150 per month via a Brex Card
Alpaca is proud to be an equal opportunity workplace dedicated to pursuing and hiring a diverse workforce.
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Krakow, Poland
24,000 - 28,000 PLN
🏢 Summary: Senior Frontend Software Engineer role focused on building and maintaining complex web applications that power competitive tournament systems and public-facing experiences. The position involves end-to-end ownership of frontend features, including graph-based workflows, account management, and tournament operations. You will collaborate cross-functionally to deliver high-quality, scalable, and performant UI solutions integrated with backend services. 🗂️ Requirements: 5+ years frontend development experience, 4+ years experience with React, 4+ years experience with TypeScript, Bachelor's degree in Computer Science or related field, Senior-level experience building production frontend applications, Hands-on experience with GraphQL, Hands-on experience with Next.js including SSR and CSR, Experience integrating frontend with backend services, Understanding of modern frontend architecture, Knowledge of state management patterns, Experience with component-based design, Understanding of accessibility standards (WCAG), Ability to work in distributed teams across time zones 📃 Skills: React, TypeScript, JavaScript, GraphQL, Next.js, SSR, CSR, REST, Spring, HTML, CSS, WCAG 🏢 Description: About the role: Our client is one of the largest game studios known for its very successful online MOBA and FPS franchises. You will be part of a team that builds the systems and tools that power competitive play - from internal operator tooling used to create and manage tournaments, to player-facing web experiences that support competition at scale. We’re looking for a Senior Frontend Software Engineer to help us design and build complex frontend applications that support tournament creation, account management, and competition workflows. This role will work across internal operator tools as well as contribute to our public-facing experiences. This is a hands-on senior role where you’ll be expected to take ownership of features end-to-end, collaborate closely with product and backend partners, and deliver high-quality, maintainable frontend code. You will work closely with the engineering team in Los Angeles and other locations in the US West Coast. Due to working across multiple time zones, flexibility to attend later meetings on a daily basis is an important factor for success in this role (up to 9-10PM CEST). Each team member is expected to proactively propose tools, designs, and implementation strategies. Responsibilities: Design, build, and maintain frontend applications that support tournament setup, configuration, and operations. Work on complex UI workflows for creating and managing graph-based tournament structures. Contribute to public-facing web experiences with a focus on performance, usability, and polish. Collaborate closely with backend engineers, product managers, and designers to translate requirements into robust UI solutions. Integrate frontend applications with backend services, including GraphQL APIs and Java Spring REST APIs. Participate fully in team rituals, including 2-week sprints, planning, refinement, and retrospectives. Take clear ownership of your work - asking questions early, surfacing risks, and caring deeply about the quality of the end results Required qualifications: 5+ years of experience with Frontend Technologies 4+ years of experience with React and Typescript Bachelor's or higher degree in Computer Science , Software Engineering, or a related field Senior-level experience building production frontend applications. Hands-on experience with GraphQL and Next.js , including both SSR and CSR patterns. Experience integrating frontend applications with backend services (experience consuming Java Spring REST APIs is a plus). Solid understanding of modern frontend architecture, state management, and component design. Comfortable working independently in a remote environment while staying engaged and communicative. Understanding of accessibility standards and guidelines (e.g. WCAG) Nice to have: Working with PaaS Vendors like Netlify Hands-on experience working with Public Cloud, preferably AWS (Lambda/Serverless). Familiarity with complex data visualization or workflow-heavy UIs. Experience working on consumer-facing web products at scale. Familiarity with trading card games (TCGs) and tournament formats (e.g., Swiss rounds, decklists, brackets), or a strong interest in competitive gaming, esports. Familiarity with testing frameworks (e.g. JEST, RTL. Playwright) Experience with observability and monitoring tools, preferably Datadog
Technology
Optiveum
Senior Frontend Engineer (React)
Senior
Hybrid
Warsaw, Poland
5,000 - 7,000 EUR/mo
🏢 Summary: Senior Frontend Engineer role focused on leading development of a high-traffic web application for shipping management and rate comparison. The position involves end-to-end frontend ownership, from translating designs into production-ready interfaces to optimizing performance and accessibility. You will shape architecture decisions and maintain standards within a React/TypeScript monorepo environment. 🗂️ Requirements: 8+ years of production frontend development experience, 3+ years in senior role within scale-up or start-up environment, Deep expertise in React and TypeScript, Strong knowledge of state management and component architecture, Proficiency in HTML semantics and modern CSS, Experience with web performance optimization and Core Web Vitals, Practical expertise in WCAG 2.2 AA accessibility standards, Experience with unit, integration, and end-to-end testing, Experience working with monorepos, Ability to contribute to frontend and API architecture decisions 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, Grid, Flexbox, WCAG, CoreWebVitals, Testing, Monorepo, API, AWS, Snowflake, Figma 🏢 Description: Senior Frontend Engineer Our Client is an ambitious tech company on a mission to create a frictionless shipping experience for SMEs. They wrap real-time pricing, comparison, booking, and tracking into a clean and unified interface, replacing outdated logistics processes with a seamless digital platform. Role We are looking for an experienced Senior Frontend Engineer to play a central role in shaping a web app where thousands of customers every week sign up, compare rates, manage integrations, and book shipments. You will work end-to-end—from understanding customer problems to shipping production code—while leading frontend work on a core value team (Customer Experience, Marketplace, or SaaS). Responsibilities Plan and lead frontend development within your value team, collaborating closely with PMs, designers, and backend engineers. Translate designs into production user interfaces that are accessible, performant, well-tested, and consistent with the rest of the product. Build prototypes to put working code in front of customers when validating product ideas. Own web performance on the surfaces you touch, ensuring excellent Core Web Vitals to boost conversion rates. Champion accessibility across the platform (WCAG 2.2 AA is the baseline). Contribute to architecture decisions that cross the frontend/backend line, including API boundaries and real-time updates. Maintain shared standards across a React/TypeScript monorepo through code reviews and technical councils. Mentor junior engineers and contribute to the evolution of the company's design system. Key competences 8+ years of experience writing production frontend code, with the last 3+ at a senior level in a scale-up/start-up environment. Deep React and TypeScript experience, with strong opinions on state management and component architecture. Solid web fundamentals: HTML semantics, modern CSS (Grid, Flexbox, container queries), browser rendering pipelines, and the network layer. Accessibility expertise as a practitioner skill, capable of spotting WCAG issues during design reviews. Fluency in web performance, measuring and optimizing Core Web Vitals on real products. High testing maturity (unit, integration, and end-to-end tests). Excellent written and spoken English communication skills. Bonus points for: Experience with large-scale monorepos, background in logistics/marketplaces/B2B SaaS, contributing to design systems, embedding AI-assisted features, or a working knowledge of Go. Salary and Conditions Salary up to 7000 Euro per month 100% remote from Poland B2B contract signed directly with our Client Start ASAP Benefits Work with a modern tech stack (React, TypeScript, AWS, Snowflake, Figma, Claude Code, etc.) A curious, collaborative, low-ego culture within a Great Place to Work certified environment
Technology
Shaped Thoughts
Senior Frontend Engineer
Senior
Remote
140 - 190 PLN/hr
🏢 Summary: Senior Frontend Software Engineer role focused on building and delivering cloud-based software using modern JavaScript technologies, React, and Software Craftsmanship practices in a remote-first environment. The position involves end-to-end software development, collaboration with international teams, and working with distributed systems and cloud platforms. Candidates will contribute to scalable solutions while leveraging AI-assisted development tools and clean architecture principles. 🗂️ Requirements: 5+ years of professional experience with JavaScript, Experience with Modern JavaScript, Experience with TypeScript, Experience with React, Experience with RxJS, Experience with Node, Experience with Mocha, Experience with Express, Experience with Enzyme, Understanding of distributed systems, Understanding of microservices, Understanding of event-driven architectures, Experience with cloud platforms, AI-assisted software development experience, Ability to design, test, deploy, and maintain cloud-based systems 📃 Skills: JavaScript, TypeScript, React, RxJS, Node, Mocha, Express, Enzyme, AWS, GCP, Azure, Microservices, Cloud, Claude 🏢 Description: We are looking for a Senior Frontend Software Engineer who is hungry to deliver quality software at pace, by utilising the latest technology trends and modern Software Craftsmanship techniques. Who are we ? We are a remote-first boutique software house company founded by a group of seasoned software experts (average experience in the team is 12 years). What connected all of us, despite a long-term relationship, is a passion for building Great Software that matters. We believe in people, so this is why the key values of Shaped Thoughts are autonomy and trust. Our people have a real and direct impact on what and how we build things. We put extra effort into ensuring everyone can make a difference and grow among other experts. Qualifications: Modern JS, TypeScript, React, RxJS, Node, Mocha, Express, Enzyme 5+ years of professional experience with JavaScript Understanding of distributed systems, microservices, and event-driven architectures Experience with cloud platforms (AWS / GCP / Azure) AI-assisted software development experience As a part of the team you will : Design, implement, code review, test and deploy cloud-based systems Develop software from start to finish - you ship it, you run it! Collaborate with other international teams on paving the way for a successful delivery Work closely with senior stakeholders on identifying business requirements and shaping the product Deliver quality technical solutions that come from a robust design and clean architecture Build & improve the software delivery process using tools such as Claude Code How do we work? We work as a team - all people can freely exchange knowledge and tasks, that’s why we’re looking for strong team players We believe in continuous improvement (Kaizen mindset) We’re happy to share knowledge and spend time learning our domain and new technologies We value asynchronous communication for work, however we meet in person to improve our personal relationships What do we offer ? Being a part of a strong senior team with an ability to learn and exchange knowledge Remote-first work environment (or you can work from our office in Wroclaw if you fancy :-) B2B rate 140-190 PLN / hour, depending on your level of expertise Open-ended B2B contract or contract of employment Recruitment process It consists of the following stages: CV screening Tech screening (45 min) Live coding session (1.15h) The last stage is F2F and requires on-site presence in one of the major cities: Wrocław, Poznań, Katowice, Kraków, Warszawa or Gdańsk. We actively encourage AI-assisted development in our daily work. However, during recruitment, we want to assess your individual skills - please don't use AI assistance unless explicitly permitted for a given stage.
Technology
Next Technology Professionals
Senior Frontend Software Engineer (m/f/d)
Senior
Hybrid
Warsaw, Poland
30,000 - 35,000 PLN/mo
🏢 Summary: B2B offer for a Senior Frontend Software Engineer to build secure, enterprise-grade wealth management platforms and internal operational systems for a German financial institution. The role focuses on developing scalable, high-performance frontend applications handling complex data and multi-tenant architectures in a SCRUM team. Hybrid work model with strong emphasis on React, TypeScript, Next.js, and cloud environments. 🗂️ Requirements: Very strong knowledge of React, Commercial experience with TypeScript, Practical experience with Next.js, Experience building secure enterprise applications, Experience with RBAC and complex permission structures, Commercial experience with AWS or GCP, Experience in greenfield projects, Ability to integrate frontend with backend APIs, English level B2+ or higher 📃 Skills: TypeScript, React, Next.js, AWS, GCP, RBAC, SCRUM, API 🏢 Description: Dla naszego klienta poszukujemy osób na stanowisko: Senior Frontend Software Engineer (m/f/d) 🏢 Projekt : Tworzenie zaawansowanych platform do zarządzania majątkiem dla klientów instytucjonalnych (Wealth Management) oraz wewnętrznych paneli operacyjnych dla prężnie działającej niemieckiej instytucji finansowej. Tworzone systemy klasy enterprise cechują się wysokim poziomem zabezpieczeń oraz rozbudowaną architekturą multi-tenant. 💻 Stack technologiczny : TypeScript, React, Next.js, chmura (AWS lub GCP). 👥 Zespół : 6-osobowy zespół projektowy. 🔄 Metodyka pracy : SCRUM. 📍 Model współpracy : Praca hybrydowa (biuro w Warszawie). 💰 Wynagrodzenie : 30 000 - 35 000 PLN netto + VAT/B2B. Zakres obowiązków : Ścisła współpraca z inżynierami backendu w zakresie optymalnej integracji z API. Współdziałanie z zespołem UX/UI przy wdrażaniu i rozwoju Design Systemu. Dbanie o najwyższą wydajność, bezpieczeństwo i skalowalność tworzonego kodu. Rozwój interfejsów dostosowanych do przetwarzania i prezentacji dużych, złożonych zbiorów danych. 🎯 Oczekujemy : Bardzo dobrej znajomości biblioteki React oraz komercyjnego doświadczenia w programowaniu w języku TypeScript. Praktycznego doświadczenia z frameworkiem Next.js. Umiejętności tworzenia złożonych, bezpiecznych aplikacji typu enterprise (idealnie w branży finansowej lub bankowej). Biegłości w pracy ze złożonymi strukturami uprawnień (RBAC) i widoczności danych dla wielu podmiotów. Doświadczenia komercyjnego w pracy z chmurą (AWS lub GCP). Znajomości języka angielskiego na poziomie min. B2+/C1 - praca w środowisku międzynarodowym. Praktycznego doświadczenia w projektach typu greenfield, ze szczególnym uwzględnieniem budowy platform od zera. ✨ Oferujemy : Stabilną współpracę w oparciu o kontrakt B2B. Płatne dni wolne od świadczenia usług. Hybrydowy model pracy z nowoczesnego biura w Warszawie. Udział w międzynarodowym projekcie dla klienta z Niemiec. 🤝 Proces rekrutacyjny : Krótka rozmowa zapoznawcza z przedstawicielem zespołu rekrutacyjnego (określenie wzajemnych oczekiwań). Merytoryczne spotkanie techniczne z inżynierami z zespołu (dyskusja o architekturze, technologiach i doświadczeniu). Finałowa rozmowa biznesowa z menedżerem projektu z Niemiec (potwierdzenie dopasowania do kultury pracy organizacji). O nas Next Technology Professionals to wyspecjalizowana agencja rekrutacyjna i firma outsourcingowa o silnym profilu technologicznym. Od ponad 10 lat wspieramy firmy w budowie zespołów IT, AI, Cybersecurity, SAP oraz w rekrutacjach dla finansów, inżynierii i marketingu. Zrealizowaliśmy ponad 1000 skutecznych procesów rekrutacyjnych dla korporacji, scale-upów i dynamicznie rosnących startupów. Przesyłając swoje CV do Next Technology Professionals, trafiasz do starannie wyselekcjonowanej bazy kandydatów realizujących projekty dla wiodących globalnych organizacji. Pracujemy wyłącznie w oparciu o aktualne, konkretne potrzeby klientów. Jeśli Twój profil będzie odpowiadał jednemu z prowadzonych procesów, skontaktujemy się niezwłocznie.
Technology
Link Group
Senior Frontend Developer (React)
Senior
Remote
Warsaw, Poland
100 - 130 USD
🏢 Summary: Senior Frontend Engineer role focused on building and evolving scalable, maintainable web applications using React. The position involves leading development of user-facing features, ensuring performance and accessibility, and shaping the frontend architecture. You will own features end-to-end and collaborate closely with product and design to deliver high-quality solutions. 🗂️ Requirements: Commercial experience with React, Experience building complex frontend features, Ability to work independently on frontend tasks, Experience collaborating with product and design stakeholders, Strong focus on code quality and maintainability, Experience optimizing performance and accessibility 📃 Skills: React, JavaScript, TypeScript, HTML, CSS, Testing, Accessibility, Performance, Git, DesignSystems 🏢 Description: We are hiring a Senior Frontend Engineer to join a product-focused team working on modern web applications for our client. In this role, you’ll take the lead in building user-facing features that are reliable, scalable, and easy to maintain. You’ll work at the intersection of engineering, product, and design — turning ideas into real, high-quality solutions used by end users. This is a position for someone who is comfortable making decisions, taking responsibility for their work, and actively shaping the frontend layer of the product. Your day-to-day Build and evolve frontend features with a focus on scalability and long-term maintainability Turn product concepts and design mockups into functional, high-quality interfaces Work closely with product and design stakeholders to refine solutions and improve user experience Take care of application performance, accessibility, and overall code health Influence technical direction within the frontend domain Spot inefficiencies and improve existing solutions and codebase structure Own your work end-to-end — from idea to production. What we’re looking for Solid commercial experience in frontend development with React Confidence in delivering complex features without close supervision Experience collaborating with non-engineering stakeholders (e.g. product, design) Strong focus on code quality, readability, and long-term maintainability Ownership mindset — you don’t just implement tasks, you drive solutions. Nice to have Experience working on complex or large-scale web platforms Exposure to shared frontend ecosystems or multi-team environments Familiarity with component-driven development and design systems Interest in growing your skills in TypeScript and modern frontend testing practices