Senior Java Backend Engineer jobs in Boulder

A leading financial institution is seeking a Software Developer in Englewood, Colorado, to design and maintain best-in-class software experiences. You will take ownership of full-stack development, using Java Spring Boot and other technologies while ensuring customer experience is prioritized. Ideal

Lead Data Engineer with strong client-facing skills required. Expertise in database design and development using PostgreSQL and Snowflake. Hands-on experience in Java programming, microservices architecture, and RESTful API development/consumption. Responsible for designing and developing scalable,

EchoStar

Company Summary EchoStar is reimagining the future of connectivity. Our business reach spans satellite television service, live-streaming and on-demand programming, smart home installation services, mobile plans and products. Today, our brands include Boost Mobile, DISH TV, Gen Mobile, Hughes and Sl

MarketOnce

Overview At MarketOnce, we empower businesses with the insights and strategies they need to excel in today's dynamic market. With a strong foundation in market research, we offer innovative solutions in research, software, consulting, advertising, and marketing to corporate, private equity firms, an

An innovative defense solutions provider in Aurora, CO is seeking a Software Engineer with a TS/SCI clearance. You will support troubleshooting and maintenance of software applications, perform testing and integration, and analyze complex systems. The ideal candidate holds a Bachelor's degree in STE

A recognized software development firm in Englewood is seeking a Full Stack Developer focusing on front-end using Angular. The ideal candidate has 7+ years of experience, strong in back-end technologies like Java/Spring Boot and NodeJS, and excellent communication skills. Responsibilities include de

Denver | Permanent | Rates Negotiables | Hybrid / On-site What You’ll Be Working On: Lead the re-architecture of an existing platform, transitioning from monolithic backend services to modern Golang-based microservices Take ownership of a core middleware platform that supports large-scale streaming

GovCIO

A government-focused IT firm is seeking a Ruby on Rails Backend Developer to design, build, and maintain backend services. This fully remote role emphasizes strong Ruby/Rails backend engineering, API development, and integration work, alongside contributions to AI-enabled enhancements. Candidates sh

About us: Ether.fi is one of the largest crypto companies in the world. We have over $10B in assets under management and a team of 30 almost all technical staff. We’ve been profitable day one and are focusing on building real consumer applications. The future we envisage is true on-chain banking. Ou

A leading tech staffing company seeks a Java/GraphQL Software Developer in Englewood, CO. The ideal candidate will have 5-7 years of experience in software development and a strong background in Java and GraphQL. You'll design and maintain backend services, support deployments, and work closely with

Join to apply for the Java Software Engineer role at Cymertek Corporation Join to apply for the Java Software Engineer role at Cymertek Corporation Java Software Engineer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) Key Summary We ar

About The Job Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure. Position Senior Rust Full-Stack Engineer — AI Data & Infr

About the Job Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure. Position Senior Rust Full-Stack Engineer - AI Data & Infr

SRM Digital LLC

Job Description: We are seeking a client-facing Lead Engineer with strong expertise in database design and development using PostgreSQL and Snowflake, along with hands-on experience in Java-based microservices and API development/consumption. The ideal candidate should be capable of designing scalab

First and most importantly: our mission is to bring transparency and clarity to the world's data. Our platform, FiftyOne, is where AI work happens . Our enterprise platform is the mission critical linchpin for managing unstructured data, model development, and AI systems at the world's largest compa

A leading technology consulting firm is seeking a Senior Backend Automation Engineer in Denver, Colorado. This role focuses on backend automation and mainframe validation to support a digital transformation initiative. Applicants should have at least 5 years of experience, particularly with IBM HATS

Alignerr

About the Job Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure. Position Senior Python Full-Stack Engineer - AI Data & In

Northstrat is seeking a Java Software Engineer to join the agile development team. The team builds and maintains a state-of-the-art software suite that supports the Geospatial Intelligence (GEOINT) analysis mission. As an individual contributing member of the team, you will participate in our fully

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Merchant & Partner Lifecycle (M&PL) team is at the forefront of affirm’s architectural transformation. We are addressing cr

Coinbase

Ready to be pushed beyond what you think you’re capable of? At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system