Senior Backend Engineering
Float Technologies
We're building the platform for the next evolution of financial services.
We're a small team that came from trading, quant, and engineering roles at tier one financial institutions who were previously responsible for creating some of the most innovative products in the market. We are now building a platform which can process the most complex transactions executed across financial markets. We are building this right: delightful experience, modern stack, AI-native architecture.
Our clients are the most sophisticated banks, hedge-funds, and asset managers in the world. We are cloud-native employing serverless compute and IAC by design, with services written in both Python and Java. We leverage the latest foundation models and AI tooling, with a front end based on Typescript / React.
We have a fully automated SDLC utilizing Github, Logfire, Vercel and other technologies for rapid and continuous intraday deployment.
About the Role In this role, you will build core services across our product offering, helping define and deliver the technology that powers our platform. This role is ideal for someone who enjoys building for performance and scale, taking ownership, working in a fast-moving environment, and contributing to the growth of a company shaping the future of institutional finance.
Requirements Bachelor’s degree in Computer Science, Engineering, Mathematics, Financial Engineering, or a related field
This role is based in-person at our NYC office
Strong proficiency in Python; knowledge of Java is a plus
Experience working with NoSQL databases, such as MongoDB or DynamoDB
Familiarity with cloud infrastructure and deployment tools (CDK, Terraform) and cloud providers (e.g., AWS, GCP, Azure)
Strong understanding of software design principles
Bonus Qualifications Experience building or integrating Generative AI solutions (OpenAI, Anthropic, Gemini) for financial applications
Familiarity with financial products and ideally complex derivatives
Experience with trading, pricing, or risk systems
Knowledge of financial market and reference data
Understanding of data management and analytics
- ...matrices, and draft proposals in hours instead of weeks. To keep up with this unprecedented scale, we're looking for a Staff Backend / Infrastructure Engineer to own the reliability, scalability, and operational excellence of our platform. You'll be the person who ensures our...SeniorFor contractors
- ...About Astra Astra is a high-impact engineering team building mission-critical financial infrastructure. Our fintech platform powers... ...strict regulatory requirements. The Role We're looking for a Senior Backend Engineer to architect and build complex financial systems that...SeniorRemote workFlexible hours
- ...Coinbase), an amazing team of leaders in the blockchain space, engineers who have built widely popular open source, a former top McKinsey... ...our entire org, and is impactful. This matters to you. As a senior engineer, you have a deep understanding of designing robust, well...SeniorWork from homeShift work
- ...generate more opportunities thanks to our advanced lead generation engine, hyper-personalized sequencing, omnichannel outreach, and AI-... .... Software engineers build the core of Amplemarket. Backend engineers build the core of Amplemarket. The three co-founders...Senior
- A leading fintech company in the United States is seeking an experienced backend engineer to join their Research & Development team. This role involves designing scalable systems, driving innovation, and collaborating across multiple domains to modernize technology. Ideal...Senior
- Job description We’re looking for a backend engineer. Someone who foresees the embedded risks and complexity of every "simple" feature, then writes and tests code as if it’s their mother’s life‑support system. Your PRs have made the blind to see, the deaf to hear, and...Senior
- Uma startup inovadora nos Estados Unidos está em busca de um(a) Engenheiro(a) de Software Backend SR. O candidato ideal deve ter sólida experiência em desenvolvimento backend e conhecimento em linguagens de programação. As responsabilidades incluem liderar implementações...Senior
- Telnyx54 is seeking an experienced backend engineer to design, build, and maintain APIs and systems across various teams. In this role, you'll collaborate with other engineers and business teams to solve user pain points while working with technologies like Elixir, RabbitMQ...Senior
- United States Digital Space LLC is looking for an experienced engineer who excels in building and maintaining production systems at scale. Join us to create developer tooling that prioritizes user ownership and privacy by leveraging modern cryptography. The ideal candidate...Senior
- Ramp, located in New York, is seeking a Backend Engineer to design and build scalable systems for money movement. The role involves architecting abstractions for payment infrastructure and ensuring reliability. Candidates should have 5+ years of backend engineering experience...SeniorFlexible hours
- ...As we scale, we're investing deeply in engineering leadership to evolve our architecture, expand... ...global supply chain. Our Tech Landscape Backend: Python / Django Infrastructure: AWS (... ...NY/LA preference) Responsibilities As a Senior/Staff Backend Engineer at Blue Cargo,...SeniorRemote workFlexible hours
- Astra is seeking a Senior Backend Engineer to architect and build financial systems that process millions of dollars daily. The role requires deep systems thinking and technical leadership. You will design solutions that coordinate payments and compliance across microservices...SeniorRemote job
$130k - $160k
Crypto.com is looking for a highly skilled Mid-to-Senior Backend Engineer in New York to enhance our 24/7 high-throughput infrastructure and expand into the sports prediction ecosystem. The ideal candidate will possess excellent skills in Golang and experience in sports...SeniorRemote jobFlexible hours- Polymarket is seeking a Senior Backend Engineer in New York, NY, to own core backend systems for their exchange. The ideal candidate will have strong expertise in low-latency systems and order-book exchanges. Your responsibilities include building and optimizing the matching...Senior
- A leading prediction market platform is seeking an experienced Backend Engineer to design and scale core exchange infrastructure. You will focus on high-performance backend systems that ensure reliability and low latency. The ideal candidate will have 4-7 years of experience...Senior
- A leading on-chain liquidity platform is seeking an experienced Back-end Engineer to design high-performance backend services. Ideal candidates have 5+ years of experience and expertise in Golang and Rust, alongside strong understanding of trading systems. This role involves...Senior
- A forward-thinking crypto company is looking for a Senior Web3 Back End Engineer for a fully remote position. This role requires 3+ years of experience in building and launching production backend systems integrated with smart contracts. You will be responsible for core...SeniorRemote job
- A leading tech company based in the United States is seeking skilled backend developers to enhance its team. Ideal candidates should have 7+ years of production experience with Python and at least 2 years working with async Python frameworks like FastAPI or aio Responsibilities...SeniorRemote job
- A fast-growing tech startup is seeking software engineers to develop core components of their advanced sales platform. As part of the engineering team, you will design and implement reliable systems and APIs while collaborating closely with product, design, and sales. The...Senior
- A healthcare advocacy marketplace is seeking a Senior Backend Engineer to design and develop scalable services and APIs. You will own your workflow from design to deployment, collaborate with cross-functional teams, and ensure system reliability. The ideal candidate has...SeniorRemote job
$166k - $195k
...jobr.pro is looking for a Senior Software Engineer in New York, NY, to lead the development of robust APIs and backend systems for the Trade PMR platform. This role focuses on integrating third-party services and will significantly impact Robinhood’s advisory FinTech...Senior- Pivotal Health is seeking a Senior Software Engineer to join their Growth & Onboarding team in New York. This role focuses on backend systems that enhance provider onboarding and improve customer experiences. Candidates should have strong backend skills and the ability...Senior
- A clean energy technology company in the United States is searching for a Senior Software Engineer I to join the Client Connections team. This role involves developing and maintaining client-facing APIs and collaborating with various teams to optimize their functionalities...SeniorRemote job
- ...A technology solutions provider is seeking a Senior .NET Software Engineer with expertise in ASP.NET Core and AWS. This remote role involves designing... ...in software development and a strong background in backend services and microservices architecture while ensuring application...SeniorRemote work
$210k - $240k
Amigo, Inc is seeking a Senior Software Engineer (Backend) to build high-performance backend infrastructure in New York City. You will develop core services that handle millions of patient interactions, ensuring system reliability and concurrency. This is an on-site position...Senior- A leading real estate fintech company based in New York City is seeking an experienced engineer to enhance its digital financing platform. The role involves writing scalable Python code, maintaining core services, and collaborating with various teams on innovative features...Senior
- A leading decentralized finance organization seeks a Senior Backend Engineer to drive the development of their decentralized trading protocols. This fully remote role targets candidates with strong Rust programming skills and requires them to architect and maintain off-...SeniorRemote jobFlexible hours
- Dormont Manufacturing Co is looking for a Senior Backend Engineer to lead the design of innovative information security products. The position entails delivering high-quality solutions across various operating environments. The ideal candidate will have substantial experience...Senior
$145k - $170k
SpecterOps is searching for a Sr. Client Services Software Engineer-C# to enhance its BloodHound Enterprise team. This role focuses on developing reliable back-end systems and APIs, suitable for experienced engineers ready to code with performance, testing, and documentation...SeniorRemote job- Itlearn360 is seeking a Senior Backend Engineer to join our Engineering team. In this role, you'll work closely with a Product Manager to build high-traffic web products that generate significant revenue. Your responsibilities include leading backend feature development...SeniorRemote jobFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Backend Engineering. Be the first to apply!
- lead backend developer New York, NY
- backend python developer New York, NY
- backend software engineer New York, NY
- java developer backend New York, NY
- back-end developer New York, NY
- remote back end developer New York, NY
- back end developer internship summer New York, NY
- senior backend developer New York, NY
- senior cloud service delivery manager New York, NY
- senior business analyst contract New York, NY

