Senior Software Engineer

Fidelity TalentSource is your destination for discovering your next temporary role at Fidelity Investments. We are currently sourcing for a Senior Software Engineer to work in Boston, MA! The Role Fidelity Digital Assets®, a Fidelity Investments Company, is developing a full-service enterprise-grade platform for storing, trading and servicing digital assets. Our goal in Core Custody product area is to design and build a suite of digital asset services and investment applications to serve the unique and varying needs of our institutional and retail investors. As a Senior Software Engineer, you will be an integral part of the Core Custody engineering team. You’ll get the opportunity to develop your skills, collaborate across Fidelity teams, and continue to learn in a fun, iterative, and rapidly changing environment. This is a hands‑on role where you will write code for product features. You will work closely with the technical lead and architect to build secure, scalable, resilient cloud‑based microservices utilizing modern software development practices. You will help design and implement REST API clients and services, exchange asynchronous messages between services, and use SQL databases to manage data. You will also write automated unit and integration tests, package software using containers, coordinate builds using continuous integration pipelines, and prepare your services for deployment on AWS. The Expertise You Have Expert in core Java technologies and frameworks like Spring Boot Proficiency in writing unit and integration tests using JUnit and Spring Boot Experience building and maintaining integration tests across distributed or microservice-based systems Proficient in databases, SQL, and data management Understanding of AWS or other cloud platforms and containerization technologies such as Docker or ECS Experience working with version control systems like GIT Proven understanding of Agile development processes and continuous integration/deployment practices Experience with asynchronous workers and resilient messaging services such as SNS and SQS An understanding of microservice architectures and twelve-factor app patterns Provide actionable feedback in pull request reviews Experience with test automation frameworks such as Rest Assured or PlayWright would be a plus Experience using AI-assisted coding tools for code generation, refactoring, and debugging is an advantage The Skills You Bring A proven foundation in software engineering, 5+ years’ experience Bachelor’s degree in computer science or equivalent curriculum preferred Possess critical thinking skills to build end-to-end solutions Passionate and committed to learning new things and developing with the latest technologies and frameworks Work well in both a small agile team and independently, having a strong user focus Strong analytical, communication, and organizational skills and the ability to handle multiple tasks at a given time Participate in engineering practices such as code and design reviews, environment strategy, and build and deployment pipelines The Value You Deliver Be a champion for test automation and quality practices Work with product management on requirements, decompose epics into stories, and deliver solutions that meet or exceed customer expectations Build scalable, resilient, cloud‑based systems aligned with our long‑term strategy Partner with engineers and business stakeholders to embed quality into the team’s workflow Analyze requirements and identify potential risks early Provide outstanding support, including on‑call support when necessary Mentor junior software engineers The Team A subsidiary of Fidelity Investments, Fidelity Digital Assets® provides an institutional-grade digital asset experience that incorporates the history, principles, and expertise of a traditional financial institution. The business is uniquely built for institutional investors and offers secure custody, integrated trading, and 24/7 support in the digital asset ecosystem. Established in 2019, Fidelity Digital Assets develops products and solutions that scale with investors’ needs, allowing clients to navigate digital assets with confidence. Learn more at Fidelity Digital Assets® adopts an entrepreneurial culture and startup mindset while serving as one of the most innovative business units within Fidelity Investments. Our global, diverse team of 800+ forward‑thinking professionals lead with agility and creativity to build solutions that bridge the gap between traditional institutional investors and their exposure to digital assets. The firm’s tenure and experience across multiple business lines present our employees with unprecedented access to knowledge, technology, and resources that help our team reshape the future of finance. Company Overview At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want! We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experiences. For information about working at Fidelity, visit FidelityCareers.com. Fidelity Investments is an equal opportunity employer. Fidelity will reasonably accommodate applicants with disabilities who need adjustments to complete the application or interview process. Fidelity TalentSource, is the in‑house temporary staffing provider for Fidelity Investments. Unlike traditional staffing agencies, we are an internal business unit within Fidelity’s Talent Acquisition team, dedicated to recruiting talent from various backgrounds for roles in Fidelity’s regional and investor center locations. Our mission is to help you experience Fidelity’s diverse and inclusive workplace while expanding your skill set and professional network, with the ultimate goal of conversion to full‑time employment as part of Fidelity’s long‑term strategy. For information about working at Fidelity TalentSource, visit FTSJobs.com. Fidelity TalentSource will reasonably accommodate applicants with disabilities who need adjustments to complete the application or interview process. Please email us at View email address on click.appcast.io if you would like to request an accommodation. Please see the below pay rate range for the work location of Massachusetts only: $65.00-$95.00 per hour. Placement in the range will vary based on job responsibilities and scope, geographic location, candidate’s relevant experience, and other factors. Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement‑related financial activities and the rules and regulations of numerous self‑regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories. #J-18808-Ljbffr Fidelity Management & Research Company