Senior Backend Developer
RIT Solutions
Senior Backend DeveloperWe're looking for a Senior Backend Developer to join an Agile team responsible for a mission-critical web platform. You'll work on stabilizing and enhancing existing systems while driving modernization using Java and AWS. This role suits a pragmatic, hands-on engineer who enjoys owning backend systems end-to-end and shaping technical direction in a regulated environment.What You'll DoDesign, build, and maintain backend services using Java and Spring BootDevelop and evolve microservices and REST APIsModernize legacy backend components while ensuring system stabilityDesign and optimize PostgreSQL schemas and queriesIntegrate services with AWS (Lambda, S3, API Gateway, SQS, EventBridge, etc.)Apply event-driven and cloud-native patterns to improve scalability and resilienceWrite unit and integration tests and participate in code reviewsSupport production systems, debugging issues and improving observabilityCollaborate closely with Product, Frontend, QA, and DevOps teams in an Agile environmentWhat We're Looking ForStrong experience with Java and Spring BootSolid understanding of backend architecture, microservices, and design patternsHands-on experience with AWS servicesStrong SQL skills and experience with PostgreSQLExperience working with legacy systems and incremental modernizationFamiliarity with CI/CD pipelines and containerized deploymentsFinancial Services or Wealth Management experience is a plusOwnership mindset and strong problem-solving skillsTechnology StackLanguages & Frameworks: Java 23, Spring Boot 3.xArchitecture: Microservices, REST APIs, event-driven systemsDatabase: PostgreSQLCloud: AWSDevOps: Git, Gradle, Docker, CI/CDObservability: New Relic, ElasticsearchProductivity: GitHub Copilot
- ...Senior Backend DeveloperWe are looking for a full-time senior Golang developer that can help us to improve and extend our data processing backend and make it easy for organizations to protect their sensitive data. You will work in a small, highly skilled team and own...SeniorFull timeWork at officeRemote workWork from homeFlexible hours
$139.6k - $200k
...CO and Charlotte, NC area) Position Summary 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...SeniorLocal areaFlexible hours- ...Certifications in specific technologies or frameworks (e.g., AWS Certified Developer, Microsoft Azure Developer). Agile or project management... ..., Ruby, PHP, C#, or Node.js. # Frameworks : Experience with backend frameworks (e.g., Django, Spring, Express). # Database...SeniorInternship
$120.8k - $170.8k
...Senior Backend Developer - Vice President Job Req Id: 26937362 Location(s): Mississauga, Ontario, Canada Job Type: Hybrid Posted: Feb. 20, 2026 Discover your future at Citi Working at Citi is far more than just a job. A career with us means...SeniorFull time- Senior Backend Principal Developer Vice President Job Overview Citi is looking for a Principal Backend Engineer to take strategic ownership of the backend architecture powering a digital experience platform that serves hundreds of thousands of clients and processes millions...SeniorWork at officeRemote work
- Citi is seeking a Senior Java Developer for FX eCommerce in a hybrid role based in New York, NY. You will architect, build and maintain high-performance backend services for institutional clients, collaborating with product and development teams to deliver cutting-edge...Senior
- ...would look like Fin. About the role We are looking for a Senior Backend Engineer to own the core systems that make this work. You... ...patterns. Build internal tools and automation that improve developer productivity and system reliability. Set and guide...SeniorFull timeWorldwide
- ...global 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...Senior
- ...to customers, make technical decisions, and ship. Role: Senior Backend Software Engineer We're a tiny engineering team building... ...production Experience with LLM workflows, agents, evals, or developer tooling Experience modeling complex operational or...SeniorFull timeWork at office
$165 per hour
...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 individual or team...Senior- ...media and we need your help adding fuel to the fire.About the RolePolymarket is launching perpetual futures and we're looking for Senior Backend Engineers to own the core systems that make it run. This is backend exchange engineering in the truest sense: low-latency order...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
- ...Talent has no borders. Proxify's mission is to connect top developers around the world with opportunities they deserve. So, it doesn... ...to our members' success. The Role: We are looking for a Senior Backend (Node.js / Nest.js) Developer to join our fast‑growing network...SeniorFull timeRemote workFlexible hours
$182.75k - $278.5k
...help change mental healthcare for the better. The Work Backend at Headway involves high-stakes logic. You’re building a reliable... ..., whether that's code generation, operational automation, or developer tooling. You bring a builder's mindset: what can we automate, what...SeniorFull timeFlexible hoursShift work- ...market infrastructure.About The RolePolymarket is looking for a backend engineer to build the systems that power how markets are... ...time.You’ll be a core individual contributor working with other senior engineers to design, implement, and operate the systems that define...Senior
- ...market infrastructure.About the rolePolymarket is looking for a backend/product engineer to own the core domain APIs and data models... ...Polymarket’s consumer product at scale.Build real-time infrastructure: Develop gRPC/Connect services and real-time streaming systems (e.g.,...Senior
- ...portfolio spans 200+ innovative companies across AI, cybersecurity, healthtech, fintech, developer tools, and enterprise SaaS. We’re looking to connect with exceptional Founding Backend Engineers who are excited about building scalable, high-performance systems at...SeniorFull time
$160k - $210k
...for people with great taste who can ship code, design or convey user needs into delightful products. Responsibilities Build backend systems for consumer features: feeds, ranking, notifications, realtime, and social surfaces Make the codebase a place where both...SeniorFull timeRemote work$250k - $350k
...best funds in the world Performance: 70%+ MoM ARR growth since founding Competitive compensation Role Overview As a Backend Software Engineer at Auctor, you will own and lead engineering projects across our software offerings. You will work closely with our...SeniorFull time$165k - $225k
...stable, and easier to use. You'll collaborate with a global team of full-stack, data, ML, and DevOps engineers to build scalable backend solutions as we continue to grow. We're a small team where individual contributions have an outsized impact on both our technology...SeniorWork at officeRemote work- ...Lightning AI is seeking a Senior Software Engineer to design and build the backend systems powering AI agent orchestration and execution. You’ll create scalable APIs and platform capabilities for tool use, workflow orchestration, memory, and state management. You’ll partner...Senior
- ...ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.About the RolePolymarket is looking for a Senior Backend Engineer to join our DeFi Trading team and own core improvements to our exchange systems. You'll work across low-latency APIs,...SeniorImmediate start
- ...rePurpose Global is hiring a backend-focused engineer to design and maintain scalable server-side services and APIs. You will own our AWS-based infrastructure, drive modern DevOps practices, and contribute across the full development lifecycle. You should be proficient...SeniorRemote work
- ...Kinvr is seeking a Senior/Staff Backend Engineer in New York City. Join a fast-growing travel tech company and contribute to complex booking systems, content and supplier integrations, and internal infrastructure. You will own epics end to end, collaborate with product...Senior
- ...OuterSignal, a startup building the customer intelligence layer for commerce, is seeking a senior backend engineer to own core systems and data pipelines. You’ll design scalable infra to process millions of orders, implement vector DB/RAG workflows, and ship end-to-end...Senior
- ...A fintech startup in New York is seeking an experienced backend engineer to scale their systems supporting financial document automation. The role entails assessment of current architecture and designing scalable solutions to handle increasing data volume and sensitivity...Senior
- ...Tecla is seeking a Senior Backend Engineer to design, build, and maintain scalable backend services using NestJS and Node.js. You will model data across MongoDB and PostgreSQL and apply domain-driven design to create robust architectures. A key focus is designing,...Senior
- ...Axon is seeking a backend-focused software engineer to join the Prepared team in New York City. This hybrid position involves tackling challenges in audio/video processing and AI, ensuring the stability and speed of mission-critical systems. Applicants should have at least...SeniorFlexible hours
$195.5k - $264.5k
...Pave is looking for an experienced backend engineer to lead critical services on their compensation intelligence platform. The ideal candidate will have at least 5 years of experience in backend engineering, with a strong grasp of data-heavy applications using TypeScript...Senior
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