Senior Backend Engineer - Ownership, APIs, and Impact
Bastion LLC
A leading financial technology company is looking for senior software engineers focusing on backend development. This role involves taking ownership of services, building APIs, and leading projects. The ideal candidates will be proficient in Go and TypeScript/Node.js, with a passion for solving complex problems in a fast-paced startup environment. This position offers the flexibility of remote work across the United States. #J-18808-Ljbffr Bastion LLC
- ...Polymarket is looking for a Senior Backend Engineer to work on Gamma, the core backend... ...with direct product impact, push the boundaries of what... ...handle, and help define how ownership evolves as the platform grows... ...engineering standards. Own API versioning strategy, error handling...SeniorImmediate start
- ...operates with high velocity and high impact—without sacrificing work‑life... ...'re Looking For We’re looking for a Senior / Staff Backend Engineer (API) - Economy to join our Economy team.... ...that supports subscriptions, digital ownership, creator monetization, payment processing...SeniorRemote workFlexible hours
- SCALIS is seeking a Senior Python Engineer to build and maintain backend systems and data layers in New... ...with production Python APIs, designing data... ...systems. Join us to take ownership of backend development and... ...dynamic team delivering impactful automation solutions. #J...Senior
$141k - $248k
## Senior Backend Engineer (Python/API) - Hybrid NYC- Blueflame AIApplyremote type: Hybridlocations: USA - NY... ...products and make a significant impact on our clients' success. Join us to... ...LLMs or applied AI* End-to-end SDLC ownership* Experience leading a team or coordinating...SeniorWork at officeRelocation3 days per week- ...Space LLC is looking for an experienced engineer who excels in building and maintaining production... ...developer tooling that prioritizes user ownership and privacy by leveraging modern... ...cryptography. The ideal candidate will have strong API development skills, a growth mindset, and...Senior
- ...New York is searching for an experienced Backend Engineer to build and lead core backend... ...This role involves designing scalable APIs and robust data ingestion pipelines. The... ...attitude. Join a dynamic startup to make impactful decisions in shaping our AI-driven product...Senior
- Ramp is seeking an experienced backend engineer to build and operate their multi-surface platform... ...serving thousands of partners through APIs and leading complex projects with a... ...deep understanding of APIs, and can make impactful decisions. Ramp offers competitive benefits...SeniorFlexible hours
$118.8k - $207.2k
Senior Software Engineer - Blueflame AI Blueflame AI, part of Datasite, is seeking a Senior Software... ...security. Develop and maintain RESTful APIs to enable communication between server... ...with LLMs or applied AI. End‑to‑end SDLC ownership. Experience leading a team or...SeniorWork at office3 days per week$160k - $180k
...Description Senior Backend Engineer Full-time New York, NY, US... ...You'll Love ~ Equity / ownership upside Become a Key Player... ...Here's How You'll Make an Impact on the Team Build the... ...Node) ~ Solid knowledge of APIs, distributed systems,...SeniorHourly payFull time- ...Senior Backend Engineer WHY THIS ROLE EXISTS Our client is building AI... ...WILL BUILD Healthcare API Infrastructure Design... ...company leadership End to end ownership from concept to production... ...to build infrastructure impacting millions of patients...Senior
- ...an ex-Amazon Alexa engineer who led AI/ML... ...traction, early-stage impact: Dozens of paying... ...own foundational backend systems at a critical... ...and real ownership. What You'll... ...healthcare platforms via APIs and RPA. Platform... ...the CTO and a senior engineer. Onsite...Senior
- ...We are looking for a Senior Backend Engineer to join our Legal Tech engineering... ...teams. The role offers real ownership and chances to lead initiatives... ...? Verbit turns speech into impact. Our team of 250... ...proficiency with Python, REST APIs and Cloud (e.g. AWS, GCP) Strong...SeniorRemote work
- Elea Ecuador is seeking a Senior Backend Engineer to design and operate the platform systems for Arbiter, an innovative AI-powered care orchestration... ...will have 5+ years of experience, especially in Python and API design, while also thriving in a fast-paced environment....SeniorRemote work
$148.5k - $190k
...are looking for expert engineers and leads to join our... ...utmost respect and care. Impact-Driven Development:... ...Responsibilities As a Senior Backend Engineer, you will design... ...systems (e.g. cloud APIs, AI services, data... ...Engineering & Pipeline Ownership: Build and maintain ETL...SeniorWork experience placementRemote work- DualEntry Business Corporation in New York City is seeking a Senior Backend Engineer to design and build core backend systems for their... ...experience in backend engineering and offers significant equity ownership along with a competitive salary. The ideal candidate will possess...Senior
$164k - $193k
Etsy, Inc. is looking for a Senior Software Engineer I to join our App T team focused on backend/API development. You will collaborate with native engineers and cross-functional teams to enhance the mobile app experience and drive user engagement. This full-time position...SeniorFull time- ...and we're seeking a talented Senior Backend Engineer to join our high-performing... ...work independently and take ownership of your own work, while actively... ...to make a meaningful impact at a rapidly growing technology... ...of the development process. API & Backend Development: Design...SeniorRemote workHome office
- A leading crypto information platform is seeking a Senior Backend Engineer to design, build, and maintain scalable backend systems. This role involves owning API development, database optimization, and collaborating across teams. Ideal candidates will have over 5 years...SeniorRemote jobFlexible hours
- ...York is seeking an experienced backend engineer to design and build core... ...workflows. You will have a direct impact on communication within... ...environment that encourages ownership of complex problems. The ideal... ...design, strong expertise in APIs, and the ability to thrive...Senior
- A leading telecommunications company in New York is seeking an experienced Backend Engineer to develop and maintain RESTful APIs. The ideal candidate should have over 7 years of experience with Java and Spring Boot, as well as familiarity with NoSQL databases. This role...SeniorFlexible hours
$200k - $250k
...Senior/Staff Backend Engineer (Platform & AI Systems) Location: San Francisco, CA... ...automation. This is a high-ownership engineering environment... ...reliability, and speed directly impact real-world legal outcomes.... ...-based backend services, APIs, and platform...SeniorH1bWork at officeVisa sponsorship3 days per week$170k - $195k
...LangChain powers top engineering teams at companies like... ...LangChain is hiring a Senior Backend Engineer focused on Enterprise... .... This is a high-impact role on a newly formed... ...with Postgres, Redis, APIs, and modern... ...architectures Strong ownership mindset and ability to...SeniorFlexible hours- ...critical and complex backend systems, directly... ...storage, compute, APIs, and blockchain... ...excellence Raise the engineering bar through design... ...authority by senior engineers and peers... ...Expectations are high, and impact is immediate... ...Us? Unmatched ownership and autonomy Exposure...SeniorImmediate start
- CrackaJack Digital Solutions LLC is looking for an experienced Java Backend Engineer to join their team in New York. This role involves designing, developing, and maintaining scalable backend services and APIs using modern Java technologies. The ideal candidate should have...Senior
$50 per hour
...markets through a cutting-edge API-driven protocol. By... ...looking for a highly skilled Backend Software Engineer to join our team and help build... .... Your work will directly impact millions of users worldwide... ...that values autonomy, ownership, and continuous learning. Cutting...SeniorRemote jobWorldwide$157k - $184k
...Chainguard, Inc. is seeking a Senior Software Engineer to join their Platform team. This remote role focuses on designing and building customer-facing backend services and APIs that support various products. The position emphasizes quality, collaboration, and agility....SeniorRemote work- ...You’ll be joining a team of engineers across Frontend, Backend, SRE and QA. We’re... ...working on building tools, APIs and integrations for one of... ...You will also hear about ownership driven observability. What... ...Opportunity to have a significant impact on the business — we are...SeniorLocal areaImmediate startRemote workHome officeFlexible hours
- ...culture of trust, high ownership, and curiosity—where everyone... ...or building robust APIs, you keep institutional... ...– data models, core backend infrastructure and services... ...AI extraction engine. You’ll brainstorm – We... ...join us You’ll have real impact – We are at an inflection...SeniorSummer workWork at office
$140k - $160k
...developing, and maintaining applications, as well as collaborating with cross-functional teams. Required skills include proficiency in API development, strong SQL skills, and experience with Git. This position offers a competitive salary range of $140,000 to $160,000,...Senior- ...Role We are looking for a Senior Backend / Infrastructure Engineer who wants to own the... ...loves designing resilient APIs, integrating messy real-world... ...scope, autonomy, and impact in a mission-driven company... ...workflows. Ways of working Ownership-first mindset — you treat...Senior
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