Senior Back-End Engineer
3B Staffing LLC
Senior Back-End Engineer
Location: Denver, CO or NYC (On-site)
Workplace Type: On-site
GC and USC
Overview
We're looking for a talented and dedicated Senior Back-End Developer focused on low-latency, real-time application development to join a high-performing engineering team. This is a chance to work on complex, mission-critical systems in a fast-paced, high-throughput environment. Responsibilities
Location: Denver, CO or NYC (On-site)
Workplace Type: On-site
GC and USC
Overview
We're looking for a talented and dedicated Senior Back-End Developer focused on low-latency, real-time application development to join a high-performing engineering team. This is a chance to work on complex, mission-critical systems in a fast-paced, high-throughput environment. Responsibilities
- Design, develop, test, deploy, and maintain scalable, high-performance backend applications using Java.
- Participate in the complete software development lifecycle including design, implementation, testing, and production support.
- Translate business and technical requirements into well-architected backend solutions.
- Collaborate closely with global teams including product managers, architects, and other developers.
- Perform code reviews and contribute to software design and architecture discussions.
- Provide documentation and ongoing support for deployed systems.
- 7+ years of hands-on development in Java , with strong expertise in Spring , Spring Boot , RESTful APIs , and Microservices architecture.
- Proficiency in SQL and experience with relational databases .
- Knowledge of Maven , Git , JUnit , and test-driven development practices.
- Familiarity with CI/CD pipelines , Linux , and Bash scripting .
- Understanding of security protocols such as SAML , encryption , certificates , and web security best practices .
- Exposure to JSON , web services , and working within Agile/DevOps environments .
- Nice to have: Experience with Keycloak and OpenSearch .
- Strong analytical and problem-solving skills, with the ability to thrive in high-performance teams.
- Bachelor's degree in Computer Science, Information Systems, or related field-or equivalent work experience.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior Back-End Engineer in New York, NY vacancy
$229.25k - $253k
The Bank of New York Mellon seeks Senior Vice President, Back-End Engineer in New York, NY, to consult with internal business groups to provide high-level application software development services or technical support for backed features and components. Scale the backend...SeniorTemporary workRemote workFlexible hours- ...Description As a Senior Back-End engineer at Bask you will work directly with the CEO and CTO to build and design the software infrastructure that will serve as the backbone of telehealth. Our serverless platform is built using Next.js & SST for a powerful multi...SeniorFull time
- Senior DevOps & Back-end Engineer - Strategy & Corporate Finance Contract Length - 12 months (with potential extension) Rate - Flexible - Dependent on Experience (DOE) About the Role We are working with a world-leading strategy and corporate finance organisation that...SeniorContract workRemote workFlexible hours
- ...media, powered by fast, reliable, and deeply technical market infrastructure.About the rolePolymarket is looking for a senior/staff backend engineer to own the systems that connect our exchange to the outside world — market data distribution, order routing, and the high...Senior
- ...powered software, payer contracting, and full back-office infrastructure. Our goal is simple... .... Both founders are technical. Every engineer on the team has experience at early-stage... ...decisions, and ship. Role: Senior Backend Software Engineer We're a tiny...SeniorFull timeWork at office
$165 per hour
...you say you have an idea and can covert that into a something beautiful, then you are the one we are looking for.As our Sr. Backend Engineer, you will be:You will develop efficient web services and APIsYou will participate in daily code deploys while working on...Senior- ...perpetual futures and we're looking for Senior Backend Engineers to own the core systems that make it... ...improvements to latency and throughput backed by benchmarks and production-grade evidence... ...in production.Own production incidents end-to-end. Debug latency and correctness...Senior
$150k - $300k
$150,000-$300,000 per annum New York, United States Permanent Senior Backend Engineer - New York My client is a well funded early stage startup building a high scale social platform from the ground up. They are focused on building persistent, high performance...SeniorPermanent employment- ...global media, powered by fast, reliable, and deeply technical market infrastructure.About the rolePolymarket is looking for a senior backend engineer to build and scale the payments infrastructure that powers deposits, withdrawals, and money movement across the platform....Senior
$182.75k - $278.5k
...clinical intelligence - from session transcript-to-note generation to automated summaries that give providers their time back. The Insurance Billing Engine: We apply AI pragmatically ( blog ) to reduce administrative burdens for providers and handle the burden of...SeniorFull timeFlexible hoursShift work- ...As a Senior Backend Software Engineer on our Diagnostics team, you'll build the part of Regard that reads... ...critical backend services and drive them end-to-end through the full product... ...building data-intensive applications, backed by strong data fluency in designing and...SeniorFull timeWork at officeLocal areaHome officeVisa sponsorshipRelocation package2 days per week
- ...RolePolymarket is looking for a backend engineer to build the systems that power how markets... ...contributor working with other senior engineers to design, implement, and operate... ...architecture; comfortable owning systems end-to-end in production.Experience building...Senior
- ...infrastructure.About the rolePolymarket is looking for a backend/product engineer to own the core domain APIs and data models that power our... ...) alongside event and notification infrastructure.Ship end-user features: Partner directly with frontend, mobile, and product...Senior
- ...market resolution runs through the systems this team owns. As a Senior Backend Engineer on the Services team, you'll be working directly on that... ...and debugging high-throughput, low-latency systems on Linux end-to-end, from design through to production operation.Strong instincts...Senior
$185k - $225k
...real-world impact count, Kalepa is just getting started.Kalepa is backed by leading investors such as IA Ventures and Inspired Capital,... ...role:Salary range: $185k - $225k USD*We are looking for smart engineers who love to code, seek challenging problems, and appreciate...SeniorWork at officeRemote work- ...About the RolePolymarket is looking for a Senior Backend Engineer to join our DeFi Trading team and own... ..., throughput, and async engine flow backed by benchmarks and production-grade evidence... ..., and settlement-state incidents end-to-end, and drive follow-through that leaves...SeniorImmediate start
$200k - $300k
....) considered for exceptional senior candidates $200,000 - $300,0... ...conversational AI at scale. Backed by strong customer traction... ...hiring multiple Senior Software Engineers to help scale its platform from... ...applications. Own projects end-to-end, from architecture and...SeniorFull timeH1bRemote work- ...more. We're fresh off our Series A backed by Tier 1 investors like Madrona, General... ...year. About this role As a Senior Backend/Infra Engineer at Amigo, you'll build the core services... ...an afterthought. You'll own services end to end, from design through production...SeniorFull timeFlexible hours
$120k - $260k
...Harvard, CMU, DFINITY, VMWare, Galaxy Digital, and more, and is backed by top-tier institutions like Founders Fund, Kraken Ventures,... .... Position Overview: As a key member of the software engineering team, you will spearhead the development of the core backend components...SeniorFull timeWork experience placement- ...future of AI in healthcare! ----------------------------------------------------- About The Role We're looking for a Senior Backend Engineer to help define the future of AI-powered, human-led healthcare. You'll sit on our Platform & Integrations team, owning the...SeniorFull timeRemote work
$179k - $212k
...achieve their goals through a convenient, end-to-end healthcare experience spanning... ...0. The Role We are looking for a Senior Software Engineer to join the team at Ro. In this role,... ...communication patterns, and service boundaries-backed by hands-on experience building and...SeniorFull timeLocal areaFlexible hours- ...is to unlock financial freedom for everyone by making money movement and access to financial data simple and secure. As a Software Engineer, you will design and build the systems that power how millions of people connect to their finances. You will work across the stack...SeniorFull timeWork experience placementLocal area
- ...About The JobOur client, a large digital music, podcast, and video service, is looking to hire a Back End Developer to join their team.ResponsibilitiesThis candidate will join our newly formed team inside Content Platform from August until November to help us proactively...Senior
- ...hardworking team members across product, engineering, marketing, sales and more! We share... ...ABOUT THE ROLE: We are looking to add a Senior Software Engineer as we grow our young,... ...RESPONSIBILITIES: Own the platform backing our product - including: streaming data...SeniorFull timeWork at officeFlexible hours
- ...global media, powered by fast, reliable, and deeply technical market infrastructure.About the rolePolymarket is looking for a backend engineer to build the detection, monitoring, and case-management systems that keep our platform compliant and safe at scale.This role...Senior
$190k - $240k
...environments, test automation, code standards, CI/CD, and release engineering, all in service of helping engineers ship code quickly, safely,... ...leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout...SeniorFull timeWork at officeRemote workFlexible hours- ...Senior Backend Software Developer Join our mission to transform our nation's healthcare system as a Senior Backend Software Developer. In this role you will assist in leading projects from design to delivery. Partner with product managers and designers to define requirements...Senior
- ...how people actually pay today. Backed by Kleiner Perkins, Thrive... ...Own critical financial systems end-to-end : from transaction authorization... ...decisioning, to rewards engines and payment processing.... ...wait for alignment. At the senior level, you may also lead system...SeniorFull timeFlexible hours
$170k - $240k
...transforming how businesses run by delivering a high performance platform on the modern data architecture. Hence, we are growing the engineering team and looking for engineers who are excited to solve challenging problems, deliver impactful capabilities throughout our stack...SeniorFull timeWork at officeFlexible hours$225k - $300k
...s at the airport, stadium, or throughout your everyday life, CLEAR unlocks the magic of frictionless experiences. As a Senior Software Engineer on the CLEAR1 team, you’ll operate at the intersection of modern web platforms, healthcare interoperability standards, and...SeniorFull timeFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Back-End Engineer. Be the first to apply!
Related searches
- java developer backend New York, NY
- back-end developer New York, NY
- senior backend developer New York, NY
- backend software engineer New York, NY
- backend python developer New York, NY
- remote back end developer New York, NY
- senior network engineer remote New York, NY
- senior benefits manager New York, NY
- senior app developer New York, NY
- senior manager legal New York, NY


